气候变化领域集成服务门户(CCPortal): Retrieving and Verifying Three-Dimensional Surface Motion Displacement of Mountain Glacier from Sentinel-1 Imagery Using Optimized Method

CCPortal

DOI	10.3390/w13131793
	Retrieving and Verifying Three-Dimensional Surface Motion Displacement of Mountain Glacier from Sentinel-1 Imagery Using Optimized Method
	Wang, Yanqiang; Zhao, Jun; Li, Zhongqin; Zhang, Mingjun; Wang, Yuchun; Liu, Jialiang; Yang, Jianxia; Yang, Zhihui
通讯作者	Zhao, J (通讯作者)，Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China.
发表日期	2021
EISSN	2073-4441
卷号	13 期号:13
英文摘要	The time series study of glacier movement is of special importance for rational management of freshwater resources, studying glacier evolution, understanding mechanism of glacier movement, and assessing disasters caused by glacier movement. In this paper, we put forward an optimization scheme for the shortcomings in the calculation method of using remote sensing to invert the three-dimensional (3D) surface motion displacement of glacier. The optimized method consists of Offset Tracking method, Optimizing the offset tracking results by means of iterative filtering, OT-SBAS technology and Conversion of 3D surface motion displacement of glacier. The Urumqi Glacier No. 1 was selected to test the optimized method. The 3D surface motion displacement of Urumqi Glacier No. 1 was retrieved by using the optimized method based on the ascending and descending Sentinel-1 datasets from 19 April to 29 August 2018. The distribution of 3D surface velocity of the Urumqi Glacier No. 1 was obtained in time series, and the accuracy of the inversion results was evaluated by using the field measurement data. The results show that the accuracies of the inverted displacements of east branch of Urumqi Glacier No. 1 (UG1E) were about 0.062, 0.063, and 0.152 m in the east, north and vertical directions, and these values for the west branch (UG1W) were 0.015, 0.020 and 0.026 m, respectively. It is indicated that using Sentinel-1 ascending and descending data and using the optimized method to retrieve the 3D surface motion displacement of glacier should satisfy the requirements of inversing the 3D surface motion displacement of high-latitude mountain glaciers in China.
关键词	EASTERN TIEN-SHAN NO. 1 MASS-BALANCE TIBETAN PLATEAU TIAN-SHAN RADAR INTERFEROMETRY SUMMER-ACCUMULATION CLIMATE-CHANGE TIME-SERIES VELOCITY
英文关键词	three-dimensional surface motion displacement; Urumqi Glacier No; 1; Sentinel-1; ascending and descending orbit data; high-latitude mountain glaciers in China; SAR
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000670972600001
来源期刊	WATER
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254561
作者单位	[Wang, Yanqiang; Zhao, Jun; Li, Zhongqin; Zhang, Mingjun; Liu, Jialiang; Yang, Jianxia; Yang, Zhihui] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Li, Zhongqin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, TianShan Glaciol Stn, Lanzhou 730000, Peoples R China; [Wang, Yuchun] Anhui Jianzhu Univ, Sch Publ Policy & Management, Hefei 230601, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yanqiang,Zhao, Jun,Li, Zhongqin,et al. Retrieving and Verifying Three-Dimensional Surface Motion Displacement of Mountain Glacier from Sentinel-1 Imagery Using Optimized Method[J]. 中国科学院西北生态环境资源研究院,2021,13(13).
APA	Wang, Yanqiang.,Zhao, Jun.,Li, Zhongqin.,Zhang, Mingjun.,Wang, Yuchun.,...&Yang, Zhihui.(2021).Retrieving and Verifying Three-Dimensional Surface Motion Displacement of Mountain Glacier from Sentinel-1 Imagery Using Optimized Method.WATER,13(13).
MLA	Wang, Yanqiang,et al."Retrieving and Verifying Three-Dimensional Surface Motion Displacement of Mountain Glacier from Sentinel-1 Imagery Using Optimized Method".WATER 13.13(2021).