A Geomorphological Regionalization using the Upscaled DEM: the Beijing-Tianjin-Hebei Area, China Case Study

doi:10.1038/s41598-020-66993-9

	A Geomorphological Regionalization using the Upscaled DEM: the Beijing-Tianjin-Hebei Area, China Case Study
	Zhang, Bin 1,2; Fan, ZeMeng 1; Du, ZhengPing 1; Zheng, JiLin 1,2; Luo, Jun 2; Wang, NaNa 2; Wang, Qing 2
刊名	SCIENTIFIC REPORTS
	2020-06-29
卷号	10 期号:1 页码:12
ISSN号	2045-2322
DOI	10.1038/s41598-020-66993-9
通讯作者	Fan, ZeMeng(fanzm@lreis.ac.cn) ; Du, ZhengPing(duzp@lreis.ac.cn)
英文摘要	Characterizing geomorphological patterns based on digital elevation models (DEMs) has become a basic focus of current geomorphology. A new DEM upscaling method based on the high-accuracy surface modelling method (HASM-US method) has been developed to improve the accuracy of current models and the subjectivity of macroscopic geomorphological patterns. The topographic variables of elevation (EL), slope (SL), aspect (AS), relief amplitude (RA), surface incision (SI), surface roughness (SR), and profile curvature (PC) with a spatial resolution of 1km x 1km in the Beijing-Tianjin-Hebei (BTH) area of China have been obtained by using the HASM-US method combined with the principal component analysis (PCA) method in terms of the elevation data of the SRTM-4 DEM, meteorological station location information, and field measurements with a GPS receiver. A geomorphological regionalization pattern has been developed to quantitatively classify the geomorphological types in the BTH area by combining the seven topographic factors of EL, SL, AS, RA, SI, SR, and PC that have significant spatial variation. The results show that the upscaling accuracy of elevation (mean difference only -2.32m) with the HASM-US method is higher than that with the bilinear interpolation method and nearest neighbour interpolation method. The geomorphologic distribution in the BTH area includes 11 types: low plain, low tableland, low hill, low basin, middle plain, middle hill, low mountain with low RA values, low mountain with medium RA values, middle mountain with low RA values, middle mountain with medium RA values, and middle mountain with high RA values. The low plain is the dominant geomorphological type that covers 40.58% of the whole BTH area. The geomorphological distribution shows the different significant characteristics: the elevation rapidly decreases from the Taihang Mountains to the eastern area, gradually decreases from the Yanshan Mountains to the southern area, and first increases and then decreases from the Bashang Plateau to the southeastern area in the whole BTH area.
资助项目	National Natural Science Foundation of China[41590844] ; National Natural Science Foundation of China[41971358] ; National Natural Science Foundation of China[41971015] ; Innovation Project of LREIS[O88RA600YA]
WOS关键词	HIGH-ACCURACY ; RESOLUTION ; CLASSIFICATION ; SCALE
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000548359400005
资助机构	National Natural Science Foundation of China ; Innovation Project of LREIS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158368]
专题	中国科学院地理科学与资源研究所
通讯作者	Fan, ZeMeng; Du, ZhengPing
作者单位	1.Chi Nese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.China West Normal Univ, Sichuan Prov Engn Lab Monitoring & Controlling So, Nanchong 637009, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Bin,Fan, ZeMeng,Du, ZhengPing,et al. A Geomorphological Regionalization using the Upscaled DEM: the Beijing-Tianjin-Hebei Area, China Case Study[J]. SCIENTIFIC REPORTS,2020,10(1):12.
APA	Zhang, Bin.,Fan, ZeMeng.,Du, ZhengPing.,Zheng, JiLin.,Luo, Jun.,...&Wang, Qing.(2020).A Geomorphological Regionalization using the Upscaled DEM: the Beijing-Tianjin-Hebei Area, China Case Study.SCIENTIFIC REPORTS,10(1),12.
MLA	Zhang, Bin,et al."A Geomorphological Regionalization using the Upscaled DEM: the Beijing-Tianjin-Hebei Area, China Case Study".SCIENTIFIC REPORTS 10.1(2020):12.