气候变化领域集成服务门户(CCPortal): High-precision measurements of the inter-annual evolution for Urumqi Glacier No.1 in eastern Tien Shan, China

CCPortal

DOI	10.3724/SP.J.1226.2021.20094
	High-precision measurements of the inter-annual evolution for Urumqi Glacier No.1 in eastern Tien Shan, China
	Xu, ChunHai; Li, ZhongQin; Mu, JianXin; Wang, PuYu; Wang, FeiTeng
通讯作者	Xu, CH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	1674-3822
起始页码	474
结束页码	487
卷号	13 期号:6
英文摘要	High-precision measuring of glacier evolution remains a challenge as the available global and regional remote sensing techniques cannot satisfactorily capture the local-scale processes of most small- and medium-sized mountain glaciers. In this study, we use a high-precision local remote sensing technique, long-range terrestrial laser scanning (TLS), to measure the evolution of Urumqi Glacier No. 1 at an annual scale. We found that the dense point clouds derived from the TLS survey can be used to reconstruct glacier surface terrain, with certain details, such as depressions, debris-covered areas, and supra-glacial drainages can be distinguished. The glacier experienced pronounced thickness thinning and continuous retreat over the last four mass-balance years (2015 - 2019). The mean surface slope of Urumqi Glacier No. 1 gradually steepened, which may increase the removal of glacier mass. The glacier was deeply incised by two very prominent primary supra-glacial rivers, and those rivers presented a widening trend. Extensive networks of supra-glacial channels had a significant impact on accelerated glacier mass loss. High-precision measuring is of vital importance to understanding the annual evolution of this type of glacier.
关键词	MASS-BALANCE REGISTRATION PYRENEES
英文关键词	glacier thickness change; front variation; supra-glacial drainage pathway; long-range terrestrial laser scanning (TLS); climate change
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000741250000002
来源期刊	SCIENCES IN COLD AND ARID REGIONS
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/254084
作者单位	[Xu, ChunHai; Li, ZhongQin; Mu, JianXin; Wang, PuYu; Wang, FeiTeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Tien Shan Glaciol Stn, Lanzhou 730000, Gansu, Peoples R China; [Xu, ChunHai] Chinese Acad Sci Lanzhou, Natl Cryosphere Desert Data Ctr, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Xu, ChunHai,Li, ZhongQin,Mu, JianXin,et al. High-precision measurements of the inter-annual evolution for Urumqi Glacier No.1 in eastern Tien Shan, China[J]. 中国科学院西北生态环境资源研究院,2021,13(6).
APA	Xu, ChunHai,Li, ZhongQin,Mu, JianXin,Wang, PuYu,&Wang, FeiTeng.(2021).High-precision measurements of the inter-annual evolution for Urumqi Glacier No.1 in eastern Tien Shan, China.SCIENCES IN COLD AND ARID REGIONS,13(6).
MLA	Xu, ChunHai,et al."High-precision measurements of the inter-annual evolution for Urumqi Glacier No.1 in eastern Tien Shan, China".SCIENCES IN COLD AND ARID REGIONS 13.6(2021).