A quantitative model to simulate the vertical errors of SRTM3 DEM V4 data at the pixel level in the Shanbei Plateau of China

doi:10.1080/01431161.2020.1734250

	A quantitative model to simulate the vertical errors of SRTM3 DEM V4 data at the pixel level in the Shanbei Plateau of China
	Zhao, Shangmin 4; Zhao, Hengyang 4; Li, Rongping 3; Cheng, Weiming 1,2,5; Zhou, Chenghu 1,2,5
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2020-07-17
卷号	41 期号:14 页码:5257-5276
ISSN号	0143-1161
DOI	10.1080/01431161.2020.1734250
通讯作者	Zhao, Shangmin(zhaoshangmin@tyut.edu.cn)
英文摘要	The Shanbei Plateau is located in the central Loess Plateau of China, which exhibits typical loess geomorphology and suffers serious soil and water erosion. Numerous studies are conducted here using digital topographic analysis methods based on digital elevation model (DEM) datasets. Most of these topographic analyses are conducted at the pixel level; thus, it is meaningful to determine the vertical error distributions of the DEM datasets at that scale. Taking the 14th product of the Geoscience Laser Altimeter System on the Ice, Cloud, and land Elevation Satellite (ICESat/GLA14) as the benchmark, the aim of this research is to construct a quantitative model to simulate the vertical error distributions of SRTM3 (Shuttle Radar Topography Mission with a spatial resolution of 3") DEM V4 data for the Shanbei Plateau. Through comparison, the multiple linear regression (MLR) model is chosen and the vertical error surface is determined based on the MLR model and the land surface factor data. Moreover, the rectified SRTM3 DEM V4 data are developed based on the original data version and the vertical error surface. Through accuracy assessment, the root mean squared error (RMSE) value for the rectified version is found to be 9.6 m. Compared to 20.6 m for the original version, this is a clear improvement. Meanwhile, the MLR model has an R-2 (the coefficient of determination) value of 0.484, which shows that it is able to represent the relationships between the vertical error distributions and the land surface factors. This research is not only meaningful for digital topographic analysis and its relevant fields of application but also provides a reference for accuracy assessments of other DEM datasets in different regions.
资助项目	National Key Research and Development Program[2017YFB0503603] ; Natural Science Foundation of Shanxi Province[201901D111098] ; National Natural Science Foundation of China[41631179] ; National Natural Science Foundation of China[41571388] ; National Natural Science Foundation of China[41771443] ; National Natural Science Foundation of China[41421001] ; National Natural Science Foundation of China[41590845] ; Major State Basic Research Development Program of China[2015CB954101]
WOS关键词	ASTER GDEM V2 ; ACCURACY ASSESSMENT ; SLOPE SPECTRUM ; LOESS PLATEAU ; C-BAND ; ICESAT ; TOPOGRAPHY ; MODIS ; VALIDATION ; EVOLUTION
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000526442200001
资助机构	National Key Research and Development Program ; Natural Science Foundation of Shanxi Province ; National Natural Science Foundation of China ; Major State Basic Research Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/133674]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhao, Shangmin
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China 3.Liaoning Ecol Meteorol & Satellite Remote Sensing, Shenyang, Peoples R China 4.Taiyuan Univ Technol, Coll Min Engn, Dept Surveying & Mapping, Taiyuan 030024, Peoples R China 5.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Shangmin,Zhao, Hengyang,Li, Rongping,et al. A quantitative model to simulate the vertical errors of SRTM3 DEM V4 data at the pixel level in the Shanbei Plateau of China[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2020,41(14):5257-5276.
APA	Zhao, Shangmin,Zhao, Hengyang,Li, Rongping,Cheng, Weiming,&Zhou, Chenghu.(2020).A quantitative model to simulate the vertical errors of SRTM3 DEM V4 data at the pixel level in the Shanbei Plateau of China.INTERNATIONAL JOURNAL OF REMOTE SENSING,41(14),5257-5276.
MLA	Zhao, Shangmin,et al."A quantitative model to simulate the vertical errors of SRTM3 DEM V4 data at the pixel level in the Shanbei Plateau of China".INTERNATIONAL JOURNAL OF REMOTE SENSING 41.14(2020):5257-5276.