气候变化领域集成服务门户(CCPortal): Multi-source DEM accuracy evaluation based on ICESat-2 in Qinghai-Tibet Plateau, China

CCPortal

DOI	10.1080/17538947.2023.2297843
	Multi-source DEM accuracy evaluation based on ICESat-2 in Qinghai-Tibet Plateau, China
	Weifeng, Xu; Jun, Li; Dailiang, Peng; Jinge, Jiang; Hongxuan, Xia; Hongyue, Yin; Jun, Yang
发表日期	2024
ISSN	1753-8947
EISSN	1753-8955
卷号	17 期号:1
英文摘要	Digital Elevation Models (DEMs) are critical datasets in the field of Earth sciences, essential for accurate measurement and analysis of the Earth's surface. We used ICESat-2 to quantitatively evaluate 5 DEMs (ALOS PALSAR, ASTER GDEM V3, COPERNICUS, NASADEM and TanDEM-X) on the Tibetan Plateau. The research findings indicate that the ALOS exhibits the highest level of accuracy, as evidenced by its root mean square error (RMSE) value of 5.05m. It is closely followed by NASA and COP, which have RMSE values of 6.23m and 8.10m, respectively. In contrast, the ASTER and TDX90 demonstrate comparatively lower levels of accuracy, as indicated by their respective RMSE values of 11.47m and 12.32m. It is worth mentioning that the accuracy of DEMs is significantly influenced by land cover, especially during the transition from areas with low vegetation to those with high vegetation. This transition often results in a decrease in accuracy. Furthermore, the accuracy of DEMs tends to decrease with increasing slope values. Aspect exhibits a notable spatial distribution pattern characterized by a low in the Southwest direction, high in all other directions phenomenon. This study offers significant contributions to the evaluation of DEMs accuracy and its suitability in the Qinghai-Tibet Plateau.
关键词	Digital elevation models ICESat-2 ATL08 vertical accuracy assessment Qinghai-Tibet Plateau
英文关键词	DIGITAL ELEVATION MODELS; TANDEM-X; ASTER-GDEM; VERTICAL ERROR; SRTM; VALIDATION; RESOLUTION; REGISTRATION; TOPOGRAPHY; GENERATION
WOS研究方向	Geography, Physical ; Remote Sensing
WOS记录号	WOS:001132167900001
来源期刊	INTERNATIONAL JOURNAL OF DIGITAL EARTH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282589
作者单位	Chongqing Normal University; Chinese Academy of Sciences; Chongqing Normal University
推荐引用方式 GB/T 7714	Weifeng, Xu,Jun, Li,Dailiang, Peng,et al. Multi-source DEM accuracy evaluation based on ICESat-2 in Qinghai-Tibet Plateau, China[J],2024,17(1).
APA	Weifeng, Xu.,Jun, Li.,Dailiang, Peng.,Jinge, Jiang.,Hongxuan, Xia.,...&Jun, Yang.(2024).Multi-source DEM accuracy evaluation based on ICESat-2 in Qinghai-Tibet Plateau, China.INTERNATIONAL JOURNAL OF DIGITAL EARTH,17(1).
MLA	Weifeng, Xu,et al."Multi-source DEM accuracy evaluation based on ICESat-2 in Qinghai-Tibet Plateau, China".INTERNATIONAL JOURNAL OF DIGITAL EARTH 17.1(2024).