气候变化领域集成服务门户(CCPortal): Evaluation of the Accuracy of SRTM3 and ASTER GDEM in the Tibetan Plateau Mountain Ranges

CCPortal

DOI	10.1051/e3sconf/202020601027
	Evaluation of the Accuracy of SRTM3 and ASTER GDEM in the Tibetan Plateau Mountain Ranges
	Jin Yao; Yi Chao-lu; Fu Ping
通讯作者	Fu, P (通讯作者)
发表日期	2020
ISSN	2267-1242
卷号	206
英文摘要	Topographic data on The Tibetan Plateau (TP) terrain are fundamental for geoscientific research, but are difficult to obtain. The Shuttle Radar Topographic Mission (SRTM) Digital Elevation Model (DEM) and the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital Elevation Model (ASTER GDEM) are two commonly used GDEM data. Verifying the accuracy of the two dataset for the TP mountain areas provides a reference point for the application of both DEMs. For evaluating the elevation accuracy and topographic information, we used 8242 field measurements from Differential Global Positioning System (DGPS) points and DEM data generated from 1:100,000 topographic maps to examine the accuracy of ASTER GDEM V2 and SRTM3 V4.1 elevation results. The average RMSE for elevation differences between DGPS and ASTER GDEM across the study areas was 18.56m,while the average RMSE between DGPS and SRTM3 was 10.39m. The average RMSEs of ASTER GDEM and SRTM3 in glaciated areas were 8.55m and 5.87m, respectively. The vertical accuracy of SRTM3 is better than that of ASTER GDEM. The vertical accuracy of both DEMs do not vary with altitude, but is related to aspect and slope.
关键词	CHINA
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Public, Environmental & Occupational Health ; Mining & Mineral Processing
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Public, Environmental & Occupational Health ; Mining & Mineral Processing
WOS记录号	WOS:000659426200026
来源期刊	2020 2ND INTERNATIONAL CONFERENCE ON GEOSCIENCE AND ENVIRONMENTAL CHEMISTRY (ICGEC 2020)
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259763
推荐引用方式 GB/T 7714	Jin Yao,Yi Chao-lu,Fu Ping. Evaluation of the Accuracy of SRTM3 and ASTER GDEM in the Tibetan Plateau Mountain Ranges[J]. 中国科学院青藏高原研究所,2020,206.
APA	Jin Yao,Yi Chao-lu,&Fu Ping.(2020).Evaluation of the Accuracy of SRTM3 and ASTER GDEM in the Tibetan Plateau Mountain Ranges.2020 2ND INTERNATIONAL CONFERENCE ON GEOSCIENCE AND ENVIRONMENTAL CHEMISTRY (ICGEC 2020),206.
MLA	Jin Yao,et al."Evaluation of the Accuracy of SRTM3 and ASTER GDEM in the Tibetan Plateau Mountain Ranges".2020 2ND INTERNATIONAL CONFERENCE ON GEOSCIENCE AND ENVIRONMENTAL CHEMISTRY (ICGEC 2020) 206(2020).