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description Publicationkeyboard_double_arrow_right Preprint , Article 2021 United KingdomPublisher:Wiley Funded by:NSF | Collaborative Research: A...NSF| Collaborative Research: Alteration of mantle peridotite: Geochemical fluxes and dynamics of far from equilibrium transportDaniel B. Nothaft; Alexis S. Templeton; Eric S. Boyd; Juerg M. Matter; Martin Stute; Amelia N. Paukert Vankeuren;AbstractThe potential for molecular hydrogen () generated via serpentinization to fuel subsurface microbial ecosystems independent from photosynthesis has prompted biogeochemical investigations of serpentinization‐influenced fluids. However, investigations typically sample via surface seeps or open‐borehole pumping, which can mix chemically distinct waters from different depths. Depth‐indiscriminate sampling methods could thus hinder understanding of the spatial controls on nutrient availability for microbial life. To resolve distinct groundwaters in a low‐temperature serpentinizing environment, we deployed packers (tools that seal against borehole walls during pumping) in two ‐deep, peridotite‐hosted wells in the Samail Ophiolite, Oman. Isolation and pumping of discrete intervals as deep as to below ground level revealed multiple aquifers that ranged in pH from 8 to 11. Chemical analyses and 16S rRNA gene sequencing of deep, highly reacted groundwaters bearing up to , methane () and sulfate () revealed an ecosystem dominated by Bacteria affiliated with the class Thermodesulfovibrionia, a group of chemolithoheterotrophs supported by oxidation coupled to reduction. In shallower, oxidized groundwaters, aerobic and denitrifying heterotrophs were relatively more abundant. High and of (up to and , respectively) indicated microbial oxidation, particularly in waters with evidence of mixing with waters. This study demonstrates the power of spatially resolving groundwaters to probe their distinct geochemical conditions and chemosynthetic communities. Such information will help improve predictions of where microbial activity in fractured rock ecosystems might occur, including beyond Earth.
e-Prints Soton arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 14 citations 14 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 17visibility views 17 download downloads 101 Powered bymore_vert e-Prints Soton arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2020 United Kingdom, SwitzerlandPublisher:Wiley Funded by:NSF | P2C2: Late Holocene Chang..., SNSF | MACRO: Molecular traces o..., ARC | Tracking 3000 years of ag...NSF| P2C2: Late Holocene Changes in the SPCZ from Algal Lipid D/H in Lakes Across Oceania ,SNSF| MACRO: Molecular traces of Anthropogenic and Climatic impact in Remote Oceania ,ARC| Tracking 3000 years of agricultural adaptation to the resource poor, climate sensitive and remote Solomon Islands using biomarkers and palaeoecologySarah Nemiah Ladd; Ashley E. Maloney; Daniel B. Nelson; Matthew Prebble; Giorgia Camperio; David Sear; J. D. Hassall; Peter G. Langdon; Julian P. Sachs; Nathalie Dubois;Hydrogen isotope ratios of sedimentary leaf waxes (δ2HWax values) are increasingly used to reconstruct past hydroclimate. Here, we add δ2HWax values from 19 lakes and four swamps on 15 tropical Pacific islands to an updated global compilation of published data from surface sediments and soils. Globally, there is a strong positive linear correlation between δ2H values of mean annual precipitation (δ2HP values) and the leaf waxes n‐C29‐alkane (R2 = 0.74, n = 665) and n‐C28‐acid (R2 = 0.74, n = 242). Tropical Pacific δ2HWax values fall within the predicted range of values based on the global calibration, and the largest residuals from the global regression line are no greater than those observed elsewhere, despite large uncertainties in δ2HP values at some Pacific sites. However, tropical Pacific δ2HWax values in isolation are not correlated with estimated δ2HP values from isoscapes or from isotope‐enabled general circulation models. Palynological analyses from these same Pacific sediment samples suggest no systematic relationship between any particular type of pollen distribution and deviations from the global calibration line. Rather, the poor correlations observed in the tropical Pacific are likely a function of the small range of δ2HP values relative to the typical residuals around the global calibration line. Our results suggest that δ2HWax values are currently most suitable for use in detecting large changes in precipitation in the tropical Pacific and elsewhere, but that ample room for improving this threshold exits in both improved understanding of δ2H variability in plants, as well as in precipitation. Plain Language Summary: Past precipitation patterns are difficult to reconstruct, limiting our ability to understand Earth’s climate system. Geochemists reconstruct past precipitation by measuring the amount of heavy hydrogen naturally incorporated into the waxy coating of leaves, which is preserved in mud that accumulates in lakes, soils, and oceans. Heavy hydrogen in leaf waxes is strongly correlated with local precipitation, allowing us to learn about rainfall intensity, temperature, and cloud movement. However, no existing calibration studies include sites from the tropical Pacific, home to the most intense rainfall on the planet and populations that rely on rain for drinking water and farming. We measured heavy hydrogen in leaf waxes from tropical Pacific islands and show that although values are within the global calibration error, no precipitation relationship exists within the region. Plant type distributions do not explain the lack of correlation, which is best attributed to poorly constrained estimates of heavy hydrogen in local rain and the relatively small range of variability within the region. At present, heavy hydrogen from ancient leaf waxes can show large changes in past precipitation, but improved process‐level understanding is needed to use this tool to understand smaller changes in the tropical Pacific and elsewhere. Key Points: Leaf wax 2H/1H ratios are correlated with mean annual precipitation 2H/1H ratios globally, but not in the tropical Pacific. Deviations from the global relationship between precipitation leaf wax 2H/1H ratios cannot be predicted from palynological assemblages. Small range and large uncertainties in estimates of tropical Pacific precipitation 2H/1H ratios likely account for poor correlations. Department of Education and Training, Australian Research Council (ARC) http://dx.doi.org/10.13039/501100000923 Natural Environment Research Council (NERC) http://dx.doi.org/10.13039/501100000270 National Science Foundation (NSF) http://dx.doi.org/10.13039/100000001 http://10.0.15.89/ethz-b-000412154 Swiss National Science Foundation
Journal of Geophysic... arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: CC BYData sources: CrossrefJournal of Geophysical Research BiogeosciencesArticle . PreprintLicense: CC BYData sources: UnpayWalladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10503377.1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 6 citations 6 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 1 Powered bymore_vert Journal of Geophysic... arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: CC BYData sources: CrossrefJournal of Geophysical Research BiogeosciencesArticle . PreprintLicense: CC BYData sources: UnpayWalladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10503377.1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 United KingdomPublisher:Frontiers Media SA Funded by:UKRI | The Oxford DTP in Environ..., NSF | Collaborative Research: P...UKRI| The Oxford DTP in Environmental Research ,NSF| Collaborative Research: P2C2: Quantitative Reconstructions of Holocene Precipitation Changes Across Central AmericaHarvey, William; Nogué, Sandra; Stansell, Nathan; Petrokofsky, Gillian; Steinman, Byron; Willis, Katherine J.;Mountain tropical forests of the Southern Maya Area (Pacific Chiapas and Guatemala, El Salvador, and Northern Honduras) predominantly comprise pine and oak formations, which form intricate mosaics and complex successional interactions following large–scale fire. These forests have been transformed by the peoples of the Maya civilization through practices of horticulture, agriculture, and architectural developments over thousands of years. Anthropogenic impacts and the extent of early human interaction with these upland forests is currently poorly understood. In this study we identify: (i) the natural baseline vegetation of the region; (ii) when human impact and agrarian practices began in the Maya uplands; and (iii) what impacts the Maya had on forest structure, composition, and successional regeneration. Past vegetation, anthropogenic use of fire, and faunal abundance were reconstructed using proxy analysis of fossil pollen, macroscopic charcoal, microscopic charcoal, and dung fungal spores (Sporormiella). Three phases of forest succession were identified from 4000B.C.E. to 1522CE that broadly overlap with the well–defined archaeological periods of (i) the Archaic (10,000–2000B.C.E.); (ii) Pre–Classic (2000B.C.E.−100C.E.); (iii) Terminal Pre–Classic (100–250C.E.); (iv) Classic (250–950C.E.); and (v) Post–Classic (950–1522C.E.). These results also include the earliest evidence for agriculture within the Southern Maya Area through presence of peppers (Capsicum) from 3850B.C.E. and the rise of maize cultivation (Zea mays) from 970B.C.E. Persistent high intensity burning driven by agricultural practices and lime production during the Late–Pre-Classic (400–100B.C.E.) to Classic Period resulted in a compositional change of forest structure c.150B.C.E. from oak (Quercus) dominated forests to pine (Pinus) dominated forests. The legacy of Pre–Columbian anthropogenically driven fire in these mountain tropical forests demonstrates the resilience and thresholds for fire driven succession. These findings are particularly relevant for addressing current land use and management strategies involving agriculture, fire, and forest management in the mountain tropical forests of the Southern Maya Area.
e-Prints Soton arrow_drop_down Frontiers in Forests and Global ChangeArticle . 2019 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/ffgc.2019.00034&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 6 citations 6 popularity Top 10% influence Average impulse Average Powered by BIP!visibility 7visibility views 7 download downloads 63 Powered bymore_vert e-Prints Soton arrow_drop_down Frontiers in Forests and Global ChangeArticle . 2019 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/ffgc.2019.00034&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 United KingdomPublisher:American Geophysical Union (AGU) Funded by:NSF | Collaborative Research: G..., UKRI | Determining and understan..., NSF | Advanced Modular Incohere... +1 projectsNSF| Collaborative Research: Ground-based Imager and Magnetometer Network for Auroral STudies (GIMNAST) ,UKRI| Determining and understanding substorm energy loss and partitioning ,NSF| Advanced Modular Incoherent Scatter Radar (AMISR) Operations and Maintenance: Looking Forward to a More Active Sun ,UKRI| DETERMINING AND PREDICTING THE SIZE AND ONSET TIMES OF SUBSTORMSMai Mai Lam; Mervyn P. Freeman; Caitriona M. Jackman; I. J. Rae; N. M. E. Kalmoni; J. K. Sandhu; Colin Forsyth;doi: 10.1029/2018ja026067
We show that a white-light all-sky imager can estimate Pedersen conductance with an uncertainty of 3 mho or 40%. Using a series of case studies over a wide range of geomagnetic activity, we compare estimates of Pedersen conductance from the backscatter spectrum of the Poker Flat Incoherent Scatter Radar with auroral intensities. We limit this comparison to an area bounding the radar measurements and within a limited area close to (but off) imager zenith. We confirm a linear relationship between conductance and the square root of auroral intensity predicted from a simple theoretical approximation. Hence, we extend a previous empirical result found for green-line emissions to the case of white-light off-zenith emissions. The difference between the radar conductance and the best-fit relationship has a mean of −0.76 ± 4.8 mho and a relative mean difference of 21% ± 78%. The uncertainties are reduced to −0.72 ± 3.3 mho and 0% ± 40% by averaging conductance over 10 min, which we attribute to the time that auroral features take to move across the imager field being greater than the 1-min resolution of the radar data. Our results demonstrate and calibrate the use of Time History of Events and Macroscale Interactions during Substorms all-sky imagers for estimating Pedersen conductance. This technique allows the extension of estimates of Pedersen conductance from Incoherent Scatter Radars to derive continental-scale estimates on scales of ~1–10 min and ~100 km 2 . It thus complements estimates from low-altitude satellites, satellite auroral imagers, and ground-based magnetometers.
NERC Open Research A... arrow_drop_down Journal of Geophysical Research Space PhysicsArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja026067&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 8 citations 8 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 52 Powered bymore_vert NERC Open Research A... arrow_drop_down Journal of Geophysical Research Space PhysicsArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja026067&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2019 Germany, Netherlands, Italy, United Kingdom, Portugal, United Kingdom, France, Norway, France, Spain, France, Spain, Turkey, FrancePublisher:Copernicus GmbH Funded by:UKRI | Marine LTSS: Climate Link..., NSF | LTER: PALMER, ANTARCTICA ..., NSF | Long-Term Ecological Rese... +3 projectsUKRI| Marine LTSS: Climate Linked Atlantic Sector Science ,NSF| LTER: PALMER, ANTARCTICA LTER: Climate Change, Ecosystem Migration and Teleconnections in an Ice-Dominated Environment ,NSF| Long-Term Ecological Research on the Antarctic Marine Ecosystem: An Ice-Dominated Environment ,EC| SHIVA ,EC| PORTWIMS ,NSF| Long-Term Ecological Research on the Antarctic Marine Ecosystem: An Ice-Dominated EnvironmentA. Valente; A. Valente; S. Sathyendranath; V. Brotas; V. Brotas; S. Groom; M. Grant; M. Grant; T. Jackson; A. Chuprin; M. Taberner; R. Airs; D. Antoine; D. Antoine; R. Arnone; W. M. Balch; K. Barker; K. Barker; K. Barker; R. Barlow; S. Bélanger; J.-F. Berthon; Ş. Beşiktepe; Y. Borsheim; A. Bracher; A. Bracher; V. Brando; V. Brando; R. J. W. Brewin; R. J. W. Brewin; E. Canuti; F. P. Chavez; A. Cianca; H. Claustre; L. Clementson; R. Crout; A. Ferreira; S. Freeman; S. Freeman; R. Frouin; C. García-Soto; C. García-Soto; S. W. Gibb; R. Goericke; R. Gould; N. Guillocheau; S. B. Hooker; C. Hu; M. Kahru; M. Kampel; H. Klein; S. Kratzer; R. Kudela; J. Ledesma; S. Lohrenz; H. Loisel; A. Mannino; V. Martinez-Vicente; P. Matrai; D. McKee; B. G. Mitchell; T. Moisan; E. Montes; E. Montes; F. Muller-Karger; A. Neeley; M. Novak; L. O'Dowd; M. Ondrusek; T. Platt; A. J. Poulton; M. Repecaud; R. Röttgers; T. Schroeder; T. Smyth; D. Smythe-Wright; H. M. Sosik; C. Thomas; R. Thomas; G. Tilstone; A. Tracana; M. Twardowski; V. Vellucci; K. Voss; J. Werdell; M. Wernand; B. Wojtasiewicz; S. Wright; G. Zibordi;A global in-situ data set for validation of ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI) is presented. This version of the compilation, starting in 1997, now extends to 2021, which is important for the validation of the most recent satellite optical sensors such as Sentinel 3B OLCI and NOAA-20 VIIRS. The data set comprises in-situ observations of the following variables: spectral remote-sensing reflectance, concentration of chlorophyll-a, spectral inherent optical properties, spectral diffuse attenuation coefficient and total suspended matter. Data were obtained from multi-project archives acquired via open internet services, or from individual projects, acquired directly from data providers. Methodologies were implemented for homogenisation, quality control and merging of all data. Minimal changes were made on the original data, other than conversion to a standard format, elimination of some points after quality control and averaging of observations that were close in time and space. The result is a merged table available in text format. Overall, the size of the data set grew with 151,673 rows, with each row representing a unique station in space and time (cf 136,250 rows in previous version; Valente et al., 2019). Observations of remote-sensing reflectance increased to 68,641 (cf 59,781 in previous version; Valente et al., 2019). There was also a near tenfold increase in chlorophyll data since 2016. Metadata of each in situ measurement (original source, cruise or experiment, principal investigator) are included in the final table. By making the metadata available, provenance is better documented, and it is also possible to analyse each set of data separately. The compiled data are available at https://doi.pangaea.de/10.1594/PANGAEA.941318 (Valente et al., 2022). SI
e-Prints Soton arrow_drop_down Earth System Science Data (ESSD); NERC Open Research ArchiveArticle . 2022 . Peer-reviewedLicense: CC BYEarth System Science Data (ESSD); NERC Open Research Archive; NARCISArticle . 2019 . Peer-reviewedLicense: CC BYRepositorio Institucional Digital del IEOArticle . 2020Data sources: Repositorio Institucional Digital del IEORepositorio Institucional Digital del IEOArticle . 2022License: CC BY NC NDData sources: Repositorio Institucional Digital del IEOCopernicus Publications; Earth System Science Data (ESSD)Other literature type . 2022Data sources: Copernicus PublicationsDokuz Eylul University Research Information SystemArticle . 2022Data sources: Dokuz Eylul University Research Information Systemhttps://doi.org/10.5194/essd-2...Preprint . 2019 . Peer-reviewedLicense: CC BYData sources: CrossrefArchiMer - Institutional Archive of IfremerOther literature type . 2019Data sources: ArchiMer - Institutional Archive of IfremerDokuz Eylul University Research Information SystemArticle . 2019Data sources: Dokuz Eylul University Research Information SystemArchiMer - Institutional Archive of IfremerOther literature type . 2022Data sources: ArchiMer - Institutional Archive of IfremerElectronic Publication Information CenterArticle . 2019Data sources: Electronic Publication Information CenterHAL - Université de Lille; Mémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2019License: CC BYFull-Text: https://hal.science/hal-03138095/documentRecolector de Ciencia Abierta, RECOLECTA; DIGITAL.CSICArticle . 2020 . 2023add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2019-27&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 50 citations 50 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!visibility 84visibility views 84 download downloads 116 Powered bymore_vert e-Prints Soton arrow_drop_down Earth System Science Data (ESSD); NERC Open Research ArchiveArticle . 2022 . Peer-reviewedLicense: CC BYEarth System Science Data (ESSD); NERC Open Research Archive; NARCISArticle . 2019 . Peer-reviewedLicense: CC BYRepositorio Institucional Digital del IEOArticle . 2020Data sources: Repositorio Institucional Digital del IEORepositorio Institucional Digital del IEOArticle . 2022License: CC BY NC NDData sources: Repositorio Institucional Digital del IEOCopernicus Publications; Earth System Science Data (ESSD)Other literature type . 2022Data sources: Copernicus PublicationsDokuz Eylul University Research Information SystemArticle . 2022Data sources: Dokuz Eylul University Research Information Systemhttps://doi.org/10.5194/essd-2...Preprint . 2019 . Peer-reviewedLicense: CC BYData sources: CrossrefArchiMer - Institutional Archive of IfremerOther literature type . 2019Data sources: ArchiMer - Institutional Archive of IfremerDokuz Eylul University Research Information SystemArticle . 2019Data sources: Dokuz Eylul University Research Information SystemArchiMer - Institutional Archive of IfremerOther literature type . 2022Data sources: ArchiMer - Institutional Archive of IfremerElectronic Publication Information CenterArticle . 2019Data sources: Electronic Publication Information CenterHAL - Université de Lille; Mémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2019License: CC BYFull-Text: https://hal.science/hal-03138095/documentRecolector de Ciencia Abierta, RECOLECTA; DIGITAL.CSICArticle . 2020 . 2023add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2019-27&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 United Kingdom, NetherlandsPublisher:American Geophysical Union (AGU) Funded by:NWO | From small whirls to the ..., NSF | Water Mass Transformation...NWO| From small whirls to the global ocean: how ocean eddies govern the response of the Atlantic Meridional Overturning Circulation to high-latitude climate change ,NSF| Water Mass Transformation and Downwelling around IslandsKatsman, C. A.; Drijfhout, S. S.; Dijkstra, H. A.; Spall, M. A.; Sub Dynamics Meteorology; Sub Physical Oceanography; Dep Natuurkunde; Marine and Atmospheric Research;doi: 10.1029/2017jc013329
handle: 1874/377524
AbstractWe investigate the characteristics of the sinking of dense waters in the North Atlantic Ocean that constitute the downwelling limb of the Atlantic Meridional Overturning Circulation (AMOC) as simulated by two global ocean models: an eddy‐permitting model at 1/4° resolution and its coarser 1° counterpart. In line with simple geostrophic considerations, it is shown that the sinking predominantly occurs in a narrow region close to the continental boundary in both model simulations. That is, the regions where convection is deepest do not coincide with regions where most dense waters sink. The amount of near‐boundary sinking that occurs varies regionally. For the 1/4° resolution model, these variations are in quantitative agreement with a relation based on geostrophy and a thermodynamic balance between buoyancy loss and alongshore advection of density, which links the amount of sinking to changes in density along the edge of the North Atlantic Ocean. In the 1° model, the amount and location of sinking appears not to be governed by this simple relation, possibly due to the large impact of overflows and nonnegligible cross‐shore density advection. If this poor representation of the processes governing the sinking of dense waters in the North Atlantic Ocean is a generic feature of such low‐resolution models, the response of the AMOC to changes in climate simulated by this type of models needs to be evaluated with care.
e-Prints Soton arrow_drop_down NARCIS; Utrecht University RepositoryArticle . 2018Journal of Geophysical Research OceansArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routeshybrid 33 citations 33 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 25visibility views 25 download downloads 54 Powered bymore_vert e-Prints Soton arrow_drop_down NARCIS; Utrecht University RepositoryArticle . 2018Journal of Geophysical Research OceansArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2017jc013329&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 Italy, United Kingdom, Poland, France, Netherlands, France, ItalyPublisher:American Astronomical Society Funded by:ANR | MAGELLAN, NSF | Cluster Shocks, Winds and..., EC | LOFARANR| MAGELLAN ,NSF| Cluster Shocks, Winds and Turbulence: The Dynamic Interplay Between Structure Formation, AGNs and Relativistic Plasmas ,EC| LOFARAuthors: R. J. van Weeren; Wendy L. Williams; Martin J. Hardcastle; Timothy W. Shimwell; +38 AuthorsR. J. van Weeren; Wendy L. Williams; Martin J. Hardcastle; Timothy W. Shimwell; D. A. Rafferty; J. Sabater; George Heald; S. S. Sridhar; T. J. Dijkema; Gianfranco Brunetti; Marcus Brüggen; Felipe Andrade-Santos; Georgiana A. Ogrean; Huub Röttgering; William A. Dawson; William R. Forman; F. de Gasperin; Christine Jones; George K. Miley; Lawrence Rudnick; Craig L. Sarazin; Annalisa Bonafede; Philip Best; Laura Birzan; Rossella Cassano; Krzysztof T. Chyzy; Judith H. Croston; Torsten A. Ensslin; Chiara Ferrari; Matthias Hoeft; Cathy Horellou; Matt J. Jarvis; Ralph P. Kraft; M. Mevius; Huib Intema; S. S. Murray; Emanuela Orru; R. Pizzo; Aurora Simionescu; Andra Stroe; S. van der Tol; Glenn J. White;Accepted: 2016-01-18 資料番号: SA1160093000 著者人数: 42名
NARCIS; The Astrophy... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di AstrofisicaNARCIS; The Astrophysical Journal Supplement SeriesArticle . 2016The Astrophysical Journal Supplement SeriesArticle . 2016 . Peer-reviewedLicense: IOP Copyright PoliciesData sources: CrossrefarXiv.org e-Print Archive; OpenAIREOther literature type . Article . Preprint . 2016https://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/0067-0049/223/1/2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 185 citations 185 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 1visibility views 1 download downloads 58 Powered bymore_vert NARCIS; The Astrophy... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di AstrofisicaNARCIS; The Astrophysical Journal Supplement SeriesArticle . 2016The Astrophysical Journal Supplement SeriesArticle . 2016 . Peer-reviewedLicense: IOP Copyright PoliciesData sources: CrossrefarXiv.org e-Print Archive; OpenAIREOther literature type . Article . Preprint . 2016https://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/0067-0049/223/1/2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 United Kingdom, France, Norway, FrancePublisher:American Geophysical Union (AGU) Funded by:NSF | Collaborative Research: E..., NSF | Collaborative Research: U..., NSF | Collaborative Research: S...NSF| Collaborative Research: Eurasian and Makarov basins observational network targets changes in the Arctic Ocean ,NSF| Collaborative Research: Upper ocean heat flux in the Eurasian Basin: Oceanic thermodynamic forcing contributing to Arctic ice loss ,NSF| Collaborative Research: Submarine Melting of Greenland's Glaciers: What are the Relevant Ocean Dynamics?Edward C. Carmack; Michiyo Yamamoto-Kawai; Thomas W. N. Haine; Sheldon Bacon; Bodil A. Bluhm; Camille Lique; Humfrey Melling; Igor V. Polyakov; Fiamma Straneo; Mary-Louise Timmermans; William J. Williams;doi: 10.1002/2015jg003140
handle: 10037/24933
The Arctic Ocean is a fundamental node in the global hydrological cycle and the ocean's thermohaline circulation. We here assess the system's key functions and processes: 1) the delivery of fresh and low salinity waters to the Arctic Ocean by river inflow, net precipitation, distillation during the freeze/thaw cycle and Pacific Ocean inflows; 2) the disposition (e.g. sources, pathways and storage) of freshwater components within the Arctic Ocean; and 3) the release and export of freshwater components into the bordering convective domains of the North Atlantic. We then examine physical, chemical or biological processes which are influenced or constrained by the local quantities and geochemical qualities of fresh water; these include: stratification and vertical mixing, ocean heat flux, nutrient supply, primary production, ocean acidification and biogeochemical cycling. Internal to the Arctic the joint effects of sea ice decline and hydrological cycle intensification have strengthened coupling between the ocean and the atmosphere (e.g. wind and ice-drift stresses, solar radiation, heat and moisture exchange), the bordering drainage basins (e.g. river discharge, sediment transport, erosion) and terrestrial ecosystems (e.g. Arctic greening, dissolved and particulate carbon loading, altered phenology of biotic components). External to the Arctic freshwater export acts as both a constraint to and a necessary ingredient for deep convection in the bordering subarctic gyres and thus affects the global thermohaline circulation. Geochemical fingerprints attained within the Arctic Ocean are likewise exported into the neighboring subarctic systems and beyond. Finally, we discuss observed and modelled functions and changes in this system on seasonal, annual and decadal time scales, and discuss mechanisms that link the marine system to atmospheric, terrestrial and cryospheric systems. International audience
NERC Open Research A... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of IfremerJournal of Geophysical Research BiogeosciencesArticle . 2016 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefMunin - Open Research Archive; Norwegian Open Research ArchivesArticle . 2015 . Peer-reviewedMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2016License: CC BY NC SAFull-Text: https://hal.science/hal-04200780/documentArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of Ifremeradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/2015jg003140&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 257 citations 257 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 19visibility views 19 download downloads 72 Powered bymore_vert NERC Open Research A... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of IfremerJournal of Geophysical Research BiogeosciencesArticle . 2016 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefMunin - Open Research Archive; Norwegian Open Research ArchivesArticle . 2015 . Peer-reviewedMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2016License: CC BY NC SAFull-Text: https://hal.science/hal-04200780/documentArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of Ifremeradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/2015jg003140&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 United KingdomPublisher:Elsevier BV Funded by:UKRI | Will climate change in th..., NSF | Graduate Research Fellows...UKRI| Will climate change in the Arctic increase the landslide-tsunami risk to the UK? ,NSF| Graduate Research Fellowship ProgramEd Pope; Ian Willis; Allen Pope; Evan S. Miles; Neil Arnold; Gareth Rees;Surface albedo is a key parameter in the energy balance of glaciers and ice sheets because it controls the shortwave radiation budget, which is often the dominant term of a glacier's surface energy balance. Monitoring surface albedo is a key application of remote sensing and achieving consistency between instruments is crucial to accurate assessment of changing albedo. Here we take advantage of a high resolution (5m) airborne multispectral dataset that was collected over Langjökull, Iceland in 2007, and compare it with near contemporaneous ETM+ and MODIS imagery. All three radiance datasets are converted to reflectance by applying commonly used atmospheric correction schemes: 6S and FLAASH. These are used to derive broadband albedos. We first assess the similarity of albedo values produced by different atmospheric correction schemes for the same instrument, then contrast results from different instruments. In this way we are able to evaluate the consistency of the available atmospheric correction algorithms and to consider the impacts of different spatial resolutions. We observe that FLAASH leads to the derivation of surface albedos greater than when 6S is used. Albedo is shown to be highly variable at small spatial scales. This leads to consistent differences associated with specific facies types between different resolution instruments, in part attributable to different surface bi-directional reflectance distribution functions. Uncertainties, however, still exist in this analysis as no correction for variable bi-directional reflectance distribution functions could be implemented for the ETM+ and airborne datasets.
Remote Sensing of En... arrow_drop_down Remote Sensing of Environment; NERC Open Research ArchiveArticle . 2016 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.rse.2015.12.051&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 21 citations 21 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 1,606 Powered bymore_vert Remote Sensing of En... arrow_drop_down Remote Sensing of Environment; NERC Open Research ArchiveArticle . 2016 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.rse.2015.12.051&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2010 France, France, United KingdomPublisher:American Geophysical Union (AGU) Funded by:NSF | GEM: Source Processes for...NSF| GEM: Source Processes for Dispersive Shear Alfven WavesFrey, H. U.; Amm, O.; Chaston, C. C.; Fu, S.; Haerendel, G.; Juusola, L.; Karlsson, T.; Lanchester, B.; Ostgaard, N.; Seran, E.; Whiter, D.; Weygand, J.; Frey, H. U.; Amm, O.; Chaston, C. C.; Fu, S.; Haerendel, G.; Juusola, L.; Karlsson, T.; Lanchester, B.; Nakamura, R.; Ostgaard, N.; Sakanoi, T.; Seran, E.; Whiter, D.; Weygand, J.; Asamura, Kazushi; Hirahara, M.;doi: 10.1029/2010ja015537
Accepted: 2010-06-28 資料番号: SA1002732000 著者人数: 16名
Mémoires en Sciences... arrow_drop_down Journal of Geophysical Research AtmospheresArticle . 2010 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2010ja015537&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 88 citations 88 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Mémoires en Sciences... arrow_drop_down Journal of Geophysical Research AtmospheresArticle . 2010 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2010ja015537&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Preprint , Article 2021 United KingdomPublisher:Wiley Funded by:NSF | Collaborative Research: A...NSF| Collaborative Research: Alteration of mantle peridotite: Geochemical fluxes and dynamics of far from equilibrium transportDaniel B. Nothaft; Alexis S. Templeton; Eric S. Boyd; Juerg M. Matter; Martin Stute; Amelia N. Paukert Vankeuren;AbstractThe potential for molecular hydrogen () generated via serpentinization to fuel subsurface microbial ecosystems independent from photosynthesis has prompted biogeochemical investigations of serpentinization‐influenced fluids. However, investigations typically sample via surface seeps or open‐borehole pumping, which can mix chemically distinct waters from different depths. Depth‐indiscriminate sampling methods could thus hinder understanding of the spatial controls on nutrient availability for microbial life. To resolve distinct groundwaters in a low‐temperature serpentinizing environment, we deployed packers (tools that seal against borehole walls during pumping) in two ‐deep, peridotite‐hosted wells in the Samail Ophiolite, Oman. Isolation and pumping of discrete intervals as deep as to below ground level revealed multiple aquifers that ranged in pH from 8 to 11. Chemical analyses and 16S rRNA gene sequencing of deep, highly reacted groundwaters bearing up to , methane () and sulfate () revealed an ecosystem dominated by Bacteria affiliated with the class Thermodesulfovibrionia, a group of chemolithoheterotrophs supported by oxidation coupled to reduction. In shallower, oxidized groundwaters, aerobic and denitrifying heterotrophs were relatively more abundant. High and of (up to and , respectively) indicated microbial oxidation, particularly in waters with evidence of mixing with waters. This study demonstrates the power of spatially resolving groundwaters to probe their distinct geochemical conditions and chemosynthetic communities. Such information will help improve predictions of where microbial activity in fractured rock ecosystems might occur, including beyond Earth.
e-Prints Soton arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10506402.2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 14 citations 14 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 17visibility views 17 download downloads 101 Powered bymore_vert e-Prints Soton arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10506402.2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2020 United Kingdom, SwitzerlandPublisher:Wiley Funded by:NSF | P2C2: Late Holocene Chang..., SNSF | MACRO: Molecular traces o..., ARC | Tracking 3000 years of ag...NSF| P2C2: Late Holocene Changes in the SPCZ from Algal Lipid D/H in Lakes Across Oceania ,SNSF| MACRO: Molecular traces of Anthropogenic and Climatic impact in Remote Oceania ,ARC| Tracking 3000 years of agricultural adaptation to the resource poor, climate sensitive and remote Solomon Islands using biomarkers and palaeoecologySarah Nemiah Ladd; Ashley E. Maloney; Daniel B. Nelson; Matthew Prebble; Giorgia Camperio; David Sear; J. D. Hassall; Peter G. Langdon; Julian P. Sachs; Nathalie Dubois;Hydrogen isotope ratios of sedimentary leaf waxes (δ2HWax values) are increasingly used to reconstruct past hydroclimate. Here, we add δ2HWax values from 19 lakes and four swamps on 15 tropical Pacific islands to an updated global compilation of published data from surface sediments and soils. Globally, there is a strong positive linear correlation between δ2H values of mean annual precipitation (δ2HP values) and the leaf waxes n‐C29‐alkane (R2 = 0.74, n = 665) and n‐C28‐acid (R2 = 0.74, n = 242). Tropical Pacific δ2HWax values fall within the predicted range of values based on the global calibration, and the largest residuals from the global regression line are no greater than those observed elsewhere, despite large uncertainties in δ2HP values at some Pacific sites. However, tropical Pacific δ2HWax values in isolation are not correlated with estimated δ2HP values from isoscapes or from isotope‐enabled general circulation models. Palynological analyses from these same Pacific sediment samples suggest no systematic relationship between any particular type of pollen distribution and deviations from the global calibration line. Rather, the poor correlations observed in the tropical Pacific are likely a function of the small range of δ2HP values relative to the typical residuals around the global calibration line. Our results suggest that δ2HWax values are currently most suitable for use in detecting large changes in precipitation in the tropical Pacific and elsewhere, but that ample room for improving this threshold exits in both improved understanding of δ2H variability in plants, as well as in precipitation. Plain Language Summary: Past precipitation patterns are difficult to reconstruct, limiting our ability to understand Earth’s climate system. Geochemists reconstruct past precipitation by measuring the amount of heavy hydrogen naturally incorporated into the waxy coating of leaves, which is preserved in mud that accumulates in lakes, soils, and oceans. Heavy hydrogen in leaf waxes is strongly correlated with local precipitation, allowing us to learn about rainfall intensity, temperature, and cloud movement. However, no existing calibration studies include sites from the tropical Pacific, home to the most intense rainfall on the planet and populations that rely on rain for drinking water and farming. We measured heavy hydrogen in leaf waxes from tropical Pacific islands and show that although values are within the global calibration error, no precipitation relationship exists within the region. Plant type distributions do not explain the lack of correlation, which is best attributed to poorly constrained estimates of heavy hydrogen in local rain and the relatively small range of variability within the region. At present, heavy hydrogen from ancient leaf waxes can show large changes in past precipitation, but improved process‐level understanding is needed to use this tool to understand smaller changes in the tropical Pacific and elsewhere. Key Points: Leaf wax 2H/1H ratios are correlated with mean annual precipitation 2H/1H ratios globally, but not in the tropical Pacific. Deviations from the global relationship between precipitation leaf wax 2H/1H ratios cannot be predicted from palynological assemblages. Small range and large uncertainties in estimates of tropical Pacific precipitation 2H/1H ratios likely account for poor correlations. Department of Education and Training, Australian Research Council (ARC) http://dx.doi.org/10.13039/501100000923 Natural Environment Research Council (NERC) http://dx.doi.org/10.13039/501100000270 National Science Foundation (NSF) http://dx.doi.org/10.13039/100000001 http://10.0.15.89/ethz-b-000412154 Swiss National Science Foundation
Journal of Geophysic... arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: CC BYData sources: CrossrefJournal of Geophysical Research BiogeosciencesArticle . PreprintLicense: CC BYData sources: UnpayWalladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10503377.1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 6 citations 6 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 1 Powered bymore_vert Journal of Geophysic... arrow_drop_down Journal of Geophysical Research BiogeosciencesArticle . 2021 . Peer-reviewedLicense: CC BYData sources: CrossrefJournal of Geophysical Research BiogeosciencesArticle . PreprintLicense: CC BYData sources: UnpayWalladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/essoar.10503377.1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 United KingdomPublisher:Frontiers Media SA Funded by:UKRI | The Oxford DTP in Environ..., NSF | Collaborative Research: P...UKRI| The Oxford DTP in Environmental Research ,NSF| Collaborative Research: P2C2: Quantitative Reconstructions of Holocene Precipitation Changes Across Central AmericaHarvey, William; Nogué, Sandra; Stansell, Nathan; Petrokofsky, Gillian; Steinman, Byron; Willis, Katherine J.;Mountain tropical forests of the Southern Maya Area (Pacific Chiapas and Guatemala, El Salvador, and Northern Honduras) predominantly comprise pine and oak formations, which form intricate mosaics and complex successional interactions following large–scale fire. These forests have been transformed by the peoples of the Maya civilization through practices of horticulture, agriculture, and architectural developments over thousands of years. Anthropogenic impacts and the extent of early human interaction with these upland forests is currently poorly understood. In this study we identify: (i) the natural baseline vegetation of the region; (ii) when human impact and agrarian practices began in the Maya uplands; and (iii) what impacts the Maya had on forest structure, composition, and successional regeneration. Past vegetation, anthropogenic use of fire, and faunal abundance were reconstructed using proxy analysis of fossil pollen, macroscopic charcoal, microscopic charcoal, and dung fungal spores (Sporormiella). Three phases of forest succession were identified from 4000B.C.E. to 1522CE that broadly overlap with the well–defined archaeological periods of (i) the Archaic (10,000–2000B.C.E.); (ii) Pre–Classic (2000B.C.E.−100C.E.); (iii) Terminal Pre–Classic (100–250C.E.); (iv) Classic (250–950C.E.); and (v) Post–Classic (950–1522C.E.). These results also include the earliest evidence for agriculture within the Southern Maya Area through presence of peppers (Capsicum) from 3850B.C.E. and the rise of maize cultivation (Zea mays) from 970B.C.E. Persistent high intensity burning driven by agricultural practices and lime production during the Late–Pre-Classic (400–100B.C.E.) to Classic Period resulted in a compositional change of forest structure c.150B.C.E. from oak (Quercus) dominated forests to pine (Pinus) dominated forests. The legacy of Pre–Columbian anthropogenically driven fire in these mountain tropical forests demonstrates the resilience and thresholds for fire driven succession. These findings are particularly relevant for addressing current land use and management strategies involving agriculture, fire, and forest management in the mountain tropical forests of the Southern Maya Area.
e-Prints Soton arrow_drop_down Frontiers in Forests and Global ChangeArticle . 2019 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/ffgc.2019.00034&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 6 citations 6 popularity Top 10% influence Average impulse Average Powered by BIP!visibility 7visibility views 7 download downloads 63 Powered bymore_vert e-Prints Soton arrow_drop_down Frontiers in Forests and Global ChangeArticle . 2019 . Peer-reviewedLicense: CC BYData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3389/ffgc.2019.00034&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2019 United KingdomPublisher:American Geophysical Union (AGU) Funded by:NSF | Collaborative Research: G..., UKRI | Determining and understan..., NSF | Advanced Modular Incohere... +1 projectsNSF| Collaborative Research: Ground-based Imager and Magnetometer Network for Auroral STudies (GIMNAST) ,UKRI| Determining and understanding substorm energy loss and partitioning ,NSF| Advanced Modular Incoherent Scatter Radar (AMISR) Operations and Maintenance: Looking Forward to a More Active Sun ,UKRI| DETERMINING AND PREDICTING THE SIZE AND ONSET TIMES OF SUBSTORMSMai Mai Lam; Mervyn P. Freeman; Caitriona M. Jackman; I. J. Rae; N. M. E. Kalmoni; J. K. Sandhu; Colin Forsyth;doi: 10.1029/2018ja026067
We show that a white-light all-sky imager can estimate Pedersen conductance with an uncertainty of 3 mho or 40%. Using a series of case studies over a wide range of geomagnetic activity, we compare estimates of Pedersen conductance from the backscatter spectrum of the Poker Flat Incoherent Scatter Radar with auroral intensities. We limit this comparison to an area bounding the radar measurements and within a limited area close to (but off) imager zenith. We confirm a linear relationship between conductance and the square root of auroral intensity predicted from a simple theoretical approximation. Hence, we extend a previous empirical result found for green-line emissions to the case of white-light off-zenith emissions. The difference between the radar conductance and the best-fit relationship has a mean of −0.76 ± 4.8 mho and a relative mean difference of 21% ± 78%. The uncertainties are reduced to −0.72 ± 3.3 mho and 0% ± 40% by averaging conductance over 10 min, which we attribute to the time that auroral features take to move across the imager field being greater than the 1-min resolution of the radar data. Our results demonstrate and calibrate the use of Time History of Events and Macroscale Interactions during Substorms all-sky imagers for estimating Pedersen conductance. This technique allows the extension of estimates of Pedersen conductance from Incoherent Scatter Radars to derive continental-scale estimates on scales of ~1–10 min and ~100 km 2 . It thus complements estimates from low-altitude satellites, satellite auroral imagers, and ground-based magnetometers.
NERC Open Research A... arrow_drop_down Journal of Geophysical Research Space PhysicsArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja026067&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 8 citations 8 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 52 Powered bymore_vert NERC Open Research A... arrow_drop_down Journal of Geophysical Research Space PhysicsArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2018ja026067&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Preprint 2019 Germany, Netherlands, Italy, United Kingdom, Portugal, United Kingdom, France, Norway, France, Spain, France, Spain, Turkey, FrancePublisher:Copernicus GmbH Funded by:UKRI | Marine LTSS: Climate Link..., NSF | LTER: PALMER, ANTARCTICA ..., NSF | Long-Term Ecological Rese... +3 projectsUKRI| Marine LTSS: Climate Linked Atlantic Sector Science ,NSF| LTER: PALMER, ANTARCTICA LTER: Climate Change, Ecosystem Migration and Teleconnections in an Ice-Dominated Environment ,NSF| Long-Term Ecological Research on the Antarctic Marine Ecosystem: An Ice-Dominated Environment ,EC| SHIVA ,EC| PORTWIMS ,NSF| Long-Term Ecological Research on the Antarctic Marine Ecosystem: An Ice-Dominated EnvironmentA. Valente; A. Valente; S. Sathyendranath; V. Brotas; V. Brotas; S. Groom; M. Grant; M. Grant; T. Jackson; A. Chuprin; M. Taberner; R. Airs; D. Antoine; D. Antoine; R. Arnone; W. M. Balch; K. Barker; K. Barker; K. Barker; R. Barlow; S. Bélanger; J.-F. Berthon; Ş. Beşiktepe; Y. Borsheim; A. Bracher; A. Bracher; V. Brando; V. Brando; R. J. W. Brewin; R. J. W. Brewin; E. Canuti; F. P. Chavez; A. Cianca; H. Claustre; L. Clementson; R. Crout; A. Ferreira; S. Freeman; S. Freeman; R. Frouin; C. García-Soto; C. García-Soto; S. W. Gibb; R. Goericke; R. Gould; N. Guillocheau; S. B. Hooker; C. Hu; M. Kahru; M. Kampel; H. Klein; S. Kratzer; R. Kudela; J. Ledesma; S. Lohrenz; H. Loisel; A. Mannino; V. Martinez-Vicente; P. Matrai; D. McKee; B. G. Mitchell; T. Moisan; E. Montes; E. Montes; F. Muller-Karger; A. Neeley; M. Novak; L. O'Dowd; M. Ondrusek; T. Platt; A. J. Poulton; M. Repecaud; R. Röttgers; T. Schroeder; T. Smyth; D. Smythe-Wright; H. M. Sosik; C. Thomas; R. Thomas; G. Tilstone; A. Tracana; M. Twardowski; V. Vellucci; K. Voss; J. Werdell; M. Wernand; B. Wojtasiewicz; S. Wright; G. Zibordi;A global in-situ data set for validation of ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI) is presented. This version of the compilation, starting in 1997, now extends to 2021, which is important for the validation of the most recent satellite optical sensors such as Sentinel 3B OLCI and NOAA-20 VIIRS. The data set comprises in-situ observations of the following variables: spectral remote-sensing reflectance, concentration of chlorophyll-a, spectral inherent optical properties, spectral diffuse attenuation coefficient and total suspended matter. Data were obtained from multi-project archives acquired via open internet services, or from individual projects, acquired directly from data providers. Methodologies were implemented for homogenisation, quality control and merging of all data. Minimal changes were made on the original data, other than conversion to a standard format, elimination of some points after quality control and averaging of observations that were close in time and space. The result is a merged table available in text format. Overall, the size of the data set grew with 151,673 rows, with each row representing a unique station in space and time (cf 136,250 rows in previous version; Valente et al., 2019). Observations of remote-sensing reflectance increased to 68,641 (cf 59,781 in previous version; Valente et al., 2019). There was also a near tenfold increase in chlorophyll data since 2016. Metadata of each in situ measurement (original source, cruise or experiment, principal investigator) are included in the final table. By making the metadata available, provenance is better documented, and it is also possible to analyse each set of data separately. The compiled data are available at https://doi.pangaea.de/10.1594/PANGAEA.941318 (Valente et al., 2022). SI
e-Prints Soton arrow_drop_down Earth System Science Data (ESSD); NERC Open Research ArchiveArticle . 2022 . Peer-reviewedLicense: CC BYEarth System Science Data (ESSD); NERC Open Research Archive; NARCISArticle . 2019 . Peer-reviewedLicense: CC BYRepositorio Institucional Digital del IEOArticle . 2020Data sources: Repositorio Institucional Digital del IEORepositorio Institucional Digital del IEOArticle . 2022License: CC BY NC NDData sources: Repositorio Institucional Digital del IEOCopernicus Publications; Earth System Science Data (ESSD)Other literature type . 2022Data sources: Copernicus PublicationsDokuz Eylul University Research Information SystemArticle . 2022Data sources: Dokuz Eylul University Research Information Systemhttps://doi.org/10.5194/essd-2...Preprint . 2019 . Peer-reviewedLicense: CC BYData sources: CrossrefArchiMer - Institutional Archive of IfremerOther literature type . 2019Data sources: ArchiMer - Institutional Archive of IfremerDokuz Eylul University Research Information SystemArticle . 2019Data sources: Dokuz Eylul University Research Information SystemArchiMer - Institutional Archive of IfremerOther literature type . 2022Data sources: ArchiMer - Institutional Archive of IfremerElectronic Publication Information CenterArticle . 2019Data sources: Electronic Publication Information CenterHAL - Université de Lille; Mémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2019License: CC BYFull-Text: https://hal.science/hal-03138095/documentRecolector de Ciencia Abierta, RECOLECTA; DIGITAL.CSICArticle . 2020 . 2023add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2019-27&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 50 citations 50 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!visibility 84visibility views 84 download downloads 116 Powered bymore_vert e-Prints Soton arrow_drop_down Earth System Science Data (ESSD); NERC Open Research ArchiveArticle . 2022 . Peer-reviewedLicense: CC BYEarth System Science Data (ESSD); NERC Open Research Archive; NARCISArticle . 2019 . Peer-reviewedLicense: CC BYRepositorio Institucional Digital del IEOArticle . 2020Data sources: Repositorio Institucional Digital del IEORepositorio Institucional Digital del IEOArticle . 2022License: CC BY NC NDData sources: Repositorio Institucional Digital del IEOCopernicus Publications; Earth System Science Data (ESSD)Other literature type . 2022Data sources: Copernicus PublicationsDokuz Eylul University Research Information SystemArticle . 2022Data sources: Dokuz Eylul University Research Information Systemhttps://doi.org/10.5194/essd-2...Preprint . 2019 . Peer-reviewedLicense: CC BYData sources: CrossrefArchiMer - Institutional Archive of IfremerOther literature type . 2019Data sources: ArchiMer - Institutional Archive of IfremerDokuz Eylul University Research Information SystemArticle . 2019Data sources: Dokuz Eylul University Research Information SystemArchiMer - Institutional Archive of IfremerOther literature type . 2022Data sources: ArchiMer - Institutional Archive of IfremerElectronic Publication Information CenterArticle . 2019Data sources: Electronic Publication Information CenterHAL - Université de Lille; Mémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2019License: CC BYFull-Text: https://hal.science/hal-03138095/documentRecolector de Ciencia Abierta, RECOLECTA; DIGITAL.CSICArticle . 2020 . 2023add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.5194/essd-2019-27&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 United Kingdom, NetherlandsPublisher:American Geophysical Union (AGU) Funded by:NWO | From small whirls to the ..., NSF | Water Mass Transformation...NWO| From small whirls to the global ocean: how ocean eddies govern the response of the Atlantic Meridional Overturning Circulation to high-latitude climate change ,NSF| Water Mass Transformation and Downwelling around IslandsKatsman, C. A.; Drijfhout, S. S.; Dijkstra, H. A.; Spall, M. A.; Sub Dynamics Meteorology; Sub Physical Oceanography; Dep Natuurkunde; Marine and Atmospheric Research;doi: 10.1029/2017jc013329
handle: 1874/377524
AbstractWe investigate the characteristics of the sinking of dense waters in the North Atlantic Ocean that constitute the downwelling limb of the Atlantic Meridional Overturning Circulation (AMOC) as simulated by two global ocean models: an eddy‐permitting model at 1/4° resolution and its coarser 1° counterpart. In line with simple geostrophic considerations, it is shown that the sinking predominantly occurs in a narrow region close to the continental boundary in both model simulations. That is, the regions where convection is deepest do not coincide with regions where most dense waters sink. The amount of near‐boundary sinking that occurs varies regionally. For the 1/4° resolution model, these variations are in quantitative agreement with a relation based on geostrophy and a thermodynamic balance between buoyancy loss and alongshore advection of density, which links the amount of sinking to changes in density along the edge of the North Atlantic Ocean. In the 1° model, the amount and location of sinking appears not to be governed by this simple relation, possibly due to the large impact of overflows and nonnegligible cross‐shore density advection. If this poor representation of the processes governing the sinking of dense waters in the North Atlantic Ocean is a generic feature of such low‐resolution models, the response of the AMOC to changes in climate simulated by this type of models needs to be evaluated with care.
e-Prints Soton arrow_drop_down NARCIS; Utrecht University RepositoryArticle . 2018Journal of Geophysical Research OceansArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2017jc013329&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 33 citations 33 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 25visibility views 25 download downloads 54 Powered bymore_vert e-Prints Soton arrow_drop_down NARCIS; Utrecht University RepositoryArticle . 2018Journal of Geophysical Research OceansArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2017jc013329&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 Italy, United Kingdom, Poland, France, Netherlands, France, ItalyPublisher:American Astronomical Society Funded by:ANR | MAGELLAN, NSF | Cluster Shocks, Winds and..., EC | LOFARANR| MAGELLAN ,NSF| Cluster Shocks, Winds and Turbulence: The Dynamic Interplay Between Structure Formation, AGNs and Relativistic Plasmas ,EC| LOFARAuthors: R. J. van Weeren; Wendy L. Williams; Martin J. Hardcastle; Timothy W. Shimwell; +38 AuthorsR. J. van Weeren; Wendy L. Williams; Martin J. Hardcastle; Timothy W. Shimwell; D. A. Rafferty; J. Sabater; George Heald; S. S. Sridhar; T. J. Dijkema; Gianfranco Brunetti; Marcus Brüggen; Felipe Andrade-Santos; Georgiana A. Ogrean; Huub Röttgering; William A. Dawson; William R. Forman; F. de Gasperin; Christine Jones; George K. Miley; Lawrence Rudnick; Craig L. Sarazin; Annalisa Bonafede; Philip Best; Laura Birzan; Rossella Cassano; Krzysztof T. Chyzy; Judith H. Croston; Torsten A. Ensslin; Chiara Ferrari; Matthias Hoeft; Cathy Horellou; Matt J. Jarvis; Ralph P. Kraft; M. Mevius; Huib Intema; S. S. Murray; Emanuela Orru; R. Pizzo; Aurora Simionescu; Andra Stroe; S. van der Tol; Glenn J. White;Accepted: 2016-01-18 資料番号: SA1160093000 著者人数: 42名
NARCIS; The Astrophy... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di AstrofisicaNARCIS; The Astrophysical Journal Supplement SeriesArticle . 2016The Astrophysical Journal Supplement SeriesArticle . 2016 . Peer-reviewedLicense: IOP Copyright PoliciesData sources: CrossrefarXiv.org e-Print Archive; OpenAIREOther literature type . Article . Preprint . 2016https://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/0067-0049/223/1/2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 185 citations 185 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 1visibility views 1 download downloads 58 Powered bymore_vert NARCIS; The Astrophy... arrow_drop_down OA@INAF - Istituto Nazionale di AstrofisicaArticle . 2016Data sources: OA@INAF - Istituto Nazionale di AstrofisicaNARCIS; The Astrophysical Journal Supplement SeriesArticle . 2016The Astrophysical Journal Supplement SeriesArticle . 2016 . Peer-reviewedLicense: IOP Copyright PoliciesData sources: CrossrefarXiv.org e-Print Archive; OpenAIREOther literature type . Article . Preprint . 2016https://doi.org/10.48550/arxiv...Article . 2016License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3847/0067-0049/223/1/2&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2016 United Kingdom, France, Norway, FrancePublisher:American Geophysical Union (AGU) Funded by:NSF | Collaborative Research: E..., NSF | Collaborative Research: U..., NSF | Collaborative Research: S...NSF| Collaborative Research: Eurasian and Makarov basins observational network targets changes in the Arctic Ocean ,NSF| Collaborative Research: Upper ocean heat flux in the Eurasian Basin: Oceanic thermodynamic forcing contributing to Arctic ice loss ,NSF| Collaborative Research: Submarine Melting of Greenland's Glaciers: What are the Relevant Ocean Dynamics?Edward C. Carmack; Michiyo Yamamoto-Kawai; Thomas W. N. Haine; Sheldon Bacon; Bodil A. Bluhm; Camille Lique; Humfrey Melling; Igor V. Polyakov; Fiamma Straneo; Mary-Louise Timmermans; William J. Williams;doi: 10.1002/2015jg003140
handle: 10037/24933
The Arctic Ocean is a fundamental node in the global hydrological cycle and the ocean's thermohaline circulation. We here assess the system's key functions and processes: 1) the delivery of fresh and low salinity waters to the Arctic Ocean by river inflow, net precipitation, distillation during the freeze/thaw cycle and Pacific Ocean inflows; 2) the disposition (e.g. sources, pathways and storage) of freshwater components within the Arctic Ocean; and 3) the release and export of freshwater components into the bordering convective domains of the North Atlantic. We then examine physical, chemical or biological processes which are influenced or constrained by the local quantities and geochemical qualities of fresh water; these include: stratification and vertical mixing, ocean heat flux, nutrient supply, primary production, ocean acidification and biogeochemical cycling. Internal to the Arctic the joint effects of sea ice decline and hydrological cycle intensification have strengthened coupling between the ocean and the atmosphere (e.g. wind and ice-drift stresses, solar radiation, heat and moisture exchange), the bordering drainage basins (e.g. river discharge, sediment transport, erosion) and terrestrial ecosystems (e.g. Arctic greening, dissolved and particulate carbon loading, altered phenology of biotic components). External to the Arctic freshwater export acts as both a constraint to and a necessary ingredient for deep convection in the bordering subarctic gyres and thus affects the global thermohaline circulation. Geochemical fingerprints attained within the Arctic Ocean are likewise exported into the neighboring subarctic systems and beyond. Finally, we discuss observed and modelled functions and changes in this system on seasonal, annual and decadal time scales, and discuss mechanisms that link the marine system to atmospheric, terrestrial and cryospheric systems. International audience
NERC Open Research A... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of IfremerJournal of Geophysical Research BiogeosciencesArticle . 2016 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefMunin - Open Research Archive; Norwegian Open Research ArchivesArticle . 2015 . Peer-reviewedMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2016License: CC BY NC SAFull-Text: https://hal.science/hal-04200780/documentArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of Ifremeradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/2015jg003140&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 257 citations 257 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!visibility 19visibility views 19 download downloads 72 Powered bymore_vert NERC Open Research A... arrow_drop_down ArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of IfremerJournal of Geophysical Research BiogeosciencesArticle . 2016 . Peer-reviewedLicense: CC BY NC NDData sources: CrossrefMunin - Open Research Archive; Norwegian Open Research ArchivesArticle . 2015 . Peer-reviewedMémoires en Sciences de l'Information et de la Communication; HAL-IRDArticle . 2016License: CC BY NC SAFull-Text: https://hal.science/hal-04200780/documentArchiMer - Institutional Archive of IfremerOther literature type . 2016Data sources: ArchiMer - Institutional Archive of Ifremeradd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1002/2015jg003140&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 United KingdomPublisher:Elsevier BV Funded by:UKRI | Will climate change in th..., NSF | Graduate Research Fellows...UKRI| Will climate change in the Arctic increase the landslide-tsunami risk to the UK? ,NSF| Graduate Research Fellowship ProgramEd Pope; Ian Willis; Allen Pope; Evan S. Miles; Neil Arnold; Gareth Rees;Surface albedo is a key parameter in the energy balance of glaciers and ice sheets because it controls the shortwave radiation budget, which is often the dominant term of a glacier's surface energy balance. Monitoring surface albedo is a key application of remote sensing and achieving consistency between instruments is crucial to accurate assessment of changing albedo. Here we take advantage of a high resolution (5m) airborne multispectral dataset that was collected over Langjökull, Iceland in 2007, and compare it with near contemporaneous ETM+ and MODIS imagery. All three radiance datasets are converted to reflectance by applying commonly used atmospheric correction schemes: 6S and FLAASH. These are used to derive broadband albedos. We first assess the similarity of albedo values produced by different atmospheric correction schemes for the same instrument, then contrast results from different instruments. In this way we are able to evaluate the consistency of the available atmospheric correction algorithms and to consider the impacts of different spatial resolutions. We observe that FLAASH leads to the derivation of surface albedos greater than when 6S is used. Albedo is shown to be highly variable at small spatial scales. This leads to consistent differences associated with specific facies types between different resolution instruments, in part attributable to different surface bi-directional reflectance distribution functions. Uncertainties, however, still exist in this analysis as no correction for variable bi-directional reflectance distribution functions could be implemented for the ETM+ and airborne datasets.
Remote Sensing of En... arrow_drop_down Remote Sensing of Environment; NERC Open Research ArchiveArticle . 2016 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.rse.2015.12.051&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 21 citations 21 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 10visibility views 10 download downloads 1,606 Powered bymore_vert Remote Sensing of En... arrow_drop_down Remote Sensing of Environment; NERC Open Research ArchiveArticle . 2016 . Peer-reviewedLicense: Elsevier TDMadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2010 France, France, United KingdomPublisher:American Geophysical Union (AGU) Funded by:NSF | GEM: Source Processes for...NSF| GEM: Source Processes for Dispersive Shear Alfven WavesFrey, H. U.; Amm, O.; Chaston, C. C.; Fu, S.; Haerendel, G.; Juusola, L.; Karlsson, T.; Lanchester, B.; Ostgaard, N.; Seran, E.; Whiter, D.; Weygand, J.; Frey, H. U.; Amm, O.; Chaston, C. C.; Fu, S.; Haerendel, G.; Juusola, L.; Karlsson, T.; Lanchester, B.; Nakamura, R.; Ostgaard, N.; Sakanoi, T.; Seran, E.; Whiter, D.; Weygand, J.; Asamura, Kazushi; Hirahara, M.;doi: 10.1029/2010ja015537
Accepted: 2010-06-28 資料番号: SA1002732000 著者人数: 16名
Mémoires en Sciences... arrow_drop_down Journal of Geophysical Research AtmospheresArticle . 2010 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2010ja015537&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 88 citations 88 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!more_vert Mémoires en Sciences... arrow_drop_down Journal of Geophysical Research AtmospheresArticle . 2010 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1029/2010ja015537&type=result"></script>'); --> </script>
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