气候变化领域集成服务门户(CCPortal): Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry

CCPortal

DOI	10.3390/rs13173398
	Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry
	Wang, Puyu; Li, Hongliang; Li, Zhongqin; Liu, Yushuo; Xu, Chunhai; Mu, Jianxin; Zhang, Hui
通讯作者	Wang, PY (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China. ; Wang, PY (通讯作者)，Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
发表日期	2021
EISSN	2072-4292
卷号	13 期号:17
英文摘要	The seasonal surface changes of glaciers in Tien Shan have seen little prior investigation despite the increase in geodetic studies of multi-year changes. In this study, we analyzed the potential of an Unmanned Aerial Vehicle (UAV) to analyze seasonal surface change processes of the Urumqi Glacier No. 1 in eastern Tien Shan. We carried out UAV surveys at the beginning and the end of the ablation period in 2018. The high-precision evolution of surface elevation, geodetic mass changes, surface velocity, and terminus change in the surveyed ablation area were correspondingly derived in combination with ground measurements, including stake/snow-pit observation and GPS measurement. The derived mean elevation change in the surveyed ablation area was -1.64 m, corresponding to the geodetic mass balance of approximately -1.39 m w.e. during the ablation period in 2018. The mean surface velocity was 3.3 m/yr and characterized by the spatial change of the velocity, which was less in the East Branch than in the West Branch. The UAV survey results were a little less than those from the ground measurements, and the correlation coefficient was 0.88 for the surface elevation change and 0.87 for surface displacement. The relative error of the glacier terminus change was 4.5% for the East Branch and 6.2% for the West Branch. These results show that UAV photogrammetry is ideal for assessing seasonal glacier surface changes and has a potential application in the monitoring of detailed glacier changes.
关键词	LIGHT-ABSORBING IMPURITIES MASS-BALANCE TIAN-SHAN DYNAMICS DUST SNOW MAP
英文关键词	Unmanned Aerial Vehicle (UAV); seasonal surface elevation change; velocity; Urumqi Glacier No; 1; Tien Shan
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000694493400001
来源期刊	REMOTE SENSING
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/254440
作者单位	[Wang, Puyu; Li, Hongliang; Li, Zhongqin; Liu, Yushuo; Xu, Chunhai; Mu, Jianxin; Zhang, Hui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China; [Wang, Puyu; Li, Hongliang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Zhongqin] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Wang, Puyu,Li, Hongliang,Li, Zhongqin,et al. Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry[J]. 中国科学院西北生态环境资源研究院,2021,13(17).
APA	Wang, Puyu.,Li, Hongliang.,Li, Zhongqin.,Liu, Yushuo.,Xu, Chunhai.,...&Zhang, Hui.(2021).Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry.REMOTE SENSING,13(17).
MLA	Wang, Puyu,et al."Seasonal Surface Change of Urumqi Glacier No. 1, Eastern Tien Shan, China, Revealed by Repeated High-Resolution UAV Photogrammetry".REMOTE SENSING 13.17(2021).