Accuracy Analysis of SRTM-DEM in Qinling-Dabashan Area

Abstract:

It was concluded by comparison of 60 sites of elevation data from SRTM-DEM and field measuring in Qinling-Dabashan area that there was a close correlation between them with a correlation coefficient of r2=0.9989 and a mean error of 18.22 meters. It was demonstrated that SRTM-DEM could present undulating terrain better in the region. The errors of SRTM-DEM in the region have nothing to do with slope, degree of shelter or terrain fragmentation. They belong to accidental errors but not systematic errors.

• Periodical: Applied Mechanics and Materials (Volumes 241-244)
• Pages: 342-346
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.241-244.342
• Online since: December 2012
• Authors: Shun Bao Liao*
• Keywords: Accuracy, GPS, Qinling-Dabashan, SRTM-DEM, Validation

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