Accuracy and resolution of shuttle radar topography mission data

Details Accuracy and resolution of shuttle radar topography mission data Accuracy and resolution of shuttle radar topography mission data

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30i..20s&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 9, pp. 20-1, CiteID 1467, DOI 10.1029/2002GL016643

Physics

14

Geodesy And Gravity: Space Geodetic Surveys, Geodesy And Gravity: Instruments And Techniques, Radio Science: Remote Sensing, Radio Science: Interferometry, Tectonophysics: General Or Miscellaneous

Scientific paper

We assess the accuracy and resolution of topography data provided by the Shuttle Radar Topography Mission (SRTM) through spectral comparisons with the National Elevation Dataset (NED) and a high-resolution laser data set of the 1999 Hector Mine earthquake rupture. We find that SRTM and the NED are coherent for wavelengths greater than 200 m, however the spatial resolution of the NED data is superior to the SRTM data for wavelengths shorter than 350 m, likely due to the application of a boxcar filter applied during final SRTM processing stages. From these results, a low-pass filter/decimation algorithm can be designed in order to expedite large-area SRTM applications.

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