Evaluation of SRTM Data Quality in Area of undulating hills of Northeast China

doi:10.7523/j.issn.2095-6134.2008.1.006

Journal of University of Chinese Academy of Sciences ›› 2008, Vol. 25 ›› Issue (1): 41-46.DOI: 10.7523/j.issn.2095-6134.2008.1.006

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Evaluation of SRTM Data Quality in Area of undulating hills
of Northeast China

YAN Ye-Chao1，2, ZHANG Shu-Wen1, YUE Shu-Ping1，2

1．Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Science, Changchun 130012, China;
2．Graduate School of Chinese Academy of Science, Beijing, 100049, China

Received:1900-01-01 Revised:1900-01-01 Online:2008-01-15

Abstract

Abstract: Digital Elevation Model (DEM) is essential data for research on global environment change and regional sustainable development. Aiming at the topographic characteristics of undulating hills,　using ARCVIEW software, the author selects typical test area and compares SRTM data with the DEM generated from 1:50000 and 1:100000 topographic maps. The result shows that SRTM data can present more detail in gentle slope area and lay out the shape of small channels. Topographic Index extracted by SRTM data is more similar with the actual land surface by giving the natural winding stream and low-lying marshes. Consequently, SRTM data contain more detail than 1:50000 topographically derived DEM.

CLC Number:

P208

YAN Ye-Chao, ZHANG Shu-Wen, YUE Shu-Ping. Evaluation of SRTM Data Quality in Area of undulating hills
of Northeast China
[J]. Journal of University of Chinese Academy of Sciences, 2008, 25(1): 41-46.

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Evaluation of SRTM Data Quality in Area of undulating hills
of Northeast China

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