Chenchen QIN, Chuanfa CHEN, Na YANG, Yuan GAO, Mengying WANG. Elevation Accuracy Evaluation and Correction of SRTM and ASTER GDEM in Shandong Province based on ICESat/GLAS [J]. Journal of Geo-information Science, 2020, 22(3): 351

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- Journal of Geo-information Science
- Vol. 22, Issue 3, 351 (2020)

Fig. 1. Distribution of ICESat/GLAS in Shandong Province

Fig. 2. Flow chart of accuracy assessment and correction of SRTM and ASTER

Fig. 3. Error distributions of SRTM and ASTER GDEM

Fig. 4. Comparison of SRTM error surfaces based on four interpolation methods

Fig. 5. Comparison of ASTER GDEM error surfaces based on four interpolation methods

Fig. 6. Original SRTMs and ASTERs, and their improved versions
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Table 1. Statistics of ICESat/GLAS and elevation errors
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Table 2. Accuracy statistics under different land types in Shandong Province (m)
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Table 3. Accuracy statistics of SRTM under different slopes
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Table 4. Accuracy statistics of ASTER GDEM under different slopes
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Table 5. Accuracy Analysis of SRTM and ASTER GDEM using Interpolation Correction (m)
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