DocumentCode :
2143741
Title :
Comparison of DEMs derived from SRTM/X- and C-band
Author :
Marschalk, Ursula ; Roth, Achim ; Eineder, Michael ; Suchandt, Steffen
Author_Institution :
German Remote Sensing Data Center, DLR, Gottingen
Volume :
7
fYear :
2004
fDate :
20-24 Sept. 2004
Firstpage :
4531
Abstract :
In February 2000, the Shuttle Radar Topography Mission (SRTM) successfully mapped the entire landmass between 60deg N and 54deg S using an Interferometric Synthetic Aperture Radar (InSAR). The data were acquired in Cand X-band and were independently processed to Digital Elevation Models (DEM) by NASA-JPL (C-band) and DLR (X-band). A commonly used source was the Position and Attitude Determination Record (PADR) generated by the Attitude Orbit Determination Avionics (AODA) system. The PADR file provides the orbit and baseline information. All C- and X-band data were systematically processed to 1 arc-second resolution DEMs. The X-band DEMs are globally available at DLRs German Remote Sensing Data Center (DFD). USGS provides the C-band derived elevation data in 1 arc-second for the US and globally a reduced version with 3 arc-second spacing. The presentation compares the X- and C-band derived elevation models. Starting from the individual verification results the correspondence of the SRTM DEMs with respect to height and location accuracy is investigated. Potential global and local discrepancies are discussed. Both datasets are compared to the Altimetry Corrected Elevations global DEM (ACE)
Keywords :
geophysical techniques; remote sensing by radar; synthetic aperture radar; topography (Earth); ACE; AD 2000 02; AODA; Altimetry Corrected Elevations global DEM; Attitude Determination Record; Attitude Orbit Determination Avionics; C-band data; DFD; DLR; Digital Elevation Models; German Remote Sensing Data Center; InSAR; Interferometric Synthetic Aperture Radar; NASA-JPL; PADR; SRTM; Shuttle Radar Topography Mission; X-band data; landmass; Australia; Continents; Design for disassembly; Position measurement; Radar antennas; Radar remote sensing; Remote sensing; Surfaces; Synthetic aperture radar; Synthetic aperture radar interferometry;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
Type :
conf
DOI :
10.1109/IGARSS.2004.1370162
Filename :
1370162
Link To Document :
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