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  • Rural Digital Europe
  • Journal of Geophysical Research Atmospheres

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  • Closed Access
    Authors: 
    S. J. Bame; J. R. Asbridge; W. C. Feldman; J. T. Gosling; G. Paschmann; N. Sckopke;
    Publisher: American Geophysical Union (AGU)

    Observations with the Los Alamos Scientific Laboratory/Max-Planck-Institut crossed-fan solar wind ion experiment on ISEE I reveal that the solar wind is decelerated and deflected away from the direction of the earth's bow shock as it enters that portion of the upstream ...

  • Closed Access
    Authors: 
    Thomas B. McCord; Roger N. Clark; R. B. Singer;
    Publisher: American Geophysical Union (AGU)

    Both morphological and compositional information are needed to define and characterize surface geologic units on Mars. A description is presented of new, near-infrared spectra (0.65 to 2.50 micrometers) for 11 regions on the Martian surface observed in 1978. The high ph...

  • Closed Access
    Authors: 
    K. F. Wasserfall;
    Publisher: American Geophysical Union (AGU)

    An attempt is made to get a general view of the secular variation of the most important magnetic elements for as long a time as possible. Those elements are D, I, H, X, F, Z, and F. For D the annual data are given for the entire interval 1770–1948 and for the rest 1820–...

  • Open Access
    Authors: 
    Wen Li; Yuri Shprits; Richard M. Thorne;
    Publisher: American Geophysical Union (AGU)

    [1] Relativistic electrons in the outer radiation belt are subjected to pitch angle and energy diffusion by chorus, electromagnetic ion cyclotron (EMIC), and hiss waves. Using quasi-linear diffusion coefficients for cyclotron resonance with field-aligned waves, we exami...

  • Closed Access
    Authors: 
    D. Winske; N. Omidi;
    Publisher: American Geophysical Union (AGU)

    The basic concepts involved in formulating and analyzing simulations of kinetic space plasmas are presented for readers with little background in simulation methods. Issues related to choosing the appropriate physics models and numerical algorithms, such as the correct ...

  • Closed Access
    Authors: 
    Ts. P. Dachev; James C. G. Walker;
    Publisher: American Geophysical Union (AGU)

    From several years of Atmosphere Explorer data, it is shown that large-scale plasma density depletions (horizontal scale greater than 1000km) in the nocturnal F region occur mainly during the first half of the night. The geomagnetic latitude of these depletions depends ...

  • Closed Access
    Authors: 
    Veryl R. Fuller;
    Publisher: American Geophysical Union (AGU)

    Description of stations—The two points of observation used for the auroral work are located a little over fourteen miles apart. One, designated as Station 1, is on the college campus: The other, Station 2, is on the Richardson Highway in a southeasterly direction from S...

  • Closed Access
    Authors: 
    Y. Hsueh; Heung-Jae Lie; Hiroshi Ichikawa;
    Publisher: American Geophysical Union (AGU)

    Trajectories of satellite-tracked surface drifters released in the continental margin area west of Kyushu indicate a separation of the inshore side of the Kuroshio that appears to form the beginning of the Tsushima Current. The trajectories also indicate an anticyclonic...

  • Closed Access
    Authors: 
    Hong Gao; Jiyao Xu; William E. Ward; Anne K. Smith;
    Publisher: American Geophysical Union (AGU)

    [1] Using the SSW (Stratospheric Sudden Warming) event in 2009 as a representative case, the temporal evolution of the responses of OH and O2 infrared atmospheric (0–0) nightglow emissions to SSW events is analyzed using the TIMED (Thermosphere Ionosphere Mesosphere Ene...

  • Open Access
    Authors: 
    Lu Wang; Robert M. Moore; John J. Cullen;
    Publisher: American Geophysical Union (AGU)

    [1] While the global ocean is an important source of atmospheric methyl iodide (CH3I), the major producers of CH3I within the ocean remain unclear. During a seasonal study in the NW Atlantic, the relationship between CH3I and some characteristic phytoplankton pigments w...