ASTER along-track stereo experiment: a potential source of global DEM data in the late 1990s

Harold R. Lang; Roy Welch; Yoshinori Miyazaki; G. Bryan Bailey; Glenn Kelly

doi:10.1117/12.255173

21 October 1996 ASTER along-track stereo experiment: a potential source of global DEM data in the late 1990s

Harold R. Lang, Roy Welch, Yoshinori Miyazaki, G. Bryan Bailey, Glenn Kelly

Proceedings Volume 2817, Infrared Spaceborne Remote Sensing IV; (1996) https://doi.org/10.1117/12.255173
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

In addition to acquiring multispectral data, the advanced spaceborne thermal emission and reflectance radiometer (ASTER) will also acquire along-track stereo data. ASTER is capable of acquiring 771 digital stereo pairs per day, each covering 60 by 60 km on the ground, at 15 m resolution with a base/height ratio of 0.6. According to present plans, approximately 30 digital elevation models (DEMs), with 7 - 50 m accuracy (RMSExyz) will be produced daily. During the 5 year mission on the EOS AM1 platform, ASTER has the potential to provide a coherent digital stereo dataset covering the Earth's land surface. At minimum, DEMs derived from these data will augment topographic data from other sources. These fundamental geophysical measurements will be a major contribution to interdisciplinary studies of the Earth as a planet.

Citation Download Citation

Harold R. Lang, Roy Welch, Yoshinori Miyazaki, G. Bryan Bailey, and Glenn Kelly "ASTER along-track stereo experiment: a potential source of global DEM data in the late 1990s", Proc. SPIE 2817, Infrared Spaceborne Remote Sensing IV, (21 October 1996); https://doi.org/10.1117/12.255173

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