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NASADEM GLOBAL ELEVATION MODEL: METHODS AND PROGRESS
Copyright policy )Abstract. NASADEM is a near-global elevation model that is being produced primarily by completely reprocessing the Shuttle Radar Topography Mission (SRTM) radar data and then merging it with refined ASTER GDEM elevations. The new and improved SRTM elevations in NASADEM result from better vertical control of each SRTM data swath via reference to ICESat elevations and from SRTM void reductions using advanced interferometric unwrapping algorithms. Remnant voids will be filled primarily by GDEM3, but with reduction of GDEM glitches (mostly related to clouds) and therefore with only minor need for secondary sources of fill.
Library of Congress Subject Headings: lcsh:Technology lcsh:T lcsh:Engineering (General). Civil engineering (General) lcsh:TA1-2040 lcsh:Applied optics. Photonics lcsh:TA1501-1820
Microsoft Academic Graph classification: Remote sensing Geodesy Vertical control Geography Radar law.invention law Shuttle Radar Topography Mission
Library of Congress Subject Headings: lcsh:Technology lcsh:T lcsh:Engineering (General). Civil engineering (General) lcsh:TA1-2040 lcsh:Applied optics. Photonics lcsh:TA1501-1820
Microsoft Academic Graph classification: Remote sensing Geodesy Vertical control Geography Radar law.invention law Shuttle Radar Topography Mission
- Jet Propulsion Laboratory United States
- Jet Propulsion Laboratory (JPL) California Institute of Technology United States
- California Institute of Technology United States
- National Aeronautics and Space Administration United States
- Jet Propulsion Lab United States
Slater, J., G. Garvey, C. Johnston, J. Haase, B. Heady, G. Kroenung, and J. Little, 2006, The SRTM data “finishing” process and products. Photogrammetric Engineering and Remote Sensing, 72(3), pp. 237-247.
- Jet Propulsion Laboratory United States
- Jet Propulsion Laboratory (JPL) California Institute of Technology United States
- California Institute of Technology United States
- National Aeronautics and Space Administration United States
- Jet Propulsion Lab United States
- Jet Propulsion Laboratory, California Institute of Technology, NASA, Pasadena, CA United States
- California Institute of Technology, Jet Propulsion Laboratory United States
Abstract. NASADEM is a near-global elevation model that is being produced primarily by completely reprocessing the Shuttle Radar Topography Mission (SRTM) radar data and then merging it with refined ASTER GDEM elevations. The new and improved SRTM elevations in NASADEM result from better vertical control of each SRTM data swath via reference to ICESat elevations and from SRTM void reductions using advanced interferometric unwrapping algorithms. Remnant voids will be filled primarily by GDEM3, but with reduction of GDEM glitches (mostly related to clouds) and therefore with only minor need for secondary sources of fill.