气候变化领域集成服务门户(CCPortal): An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau

CCPortal

DOI	10.1080/17538947.2017.1374475
	An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau
	Ai, Bei-Bei; Qin, Cheng-Zhi; Ye, Qinghua; Zhu, A-Xing; Cogley, Graham
通讯作者	Qin, CZ (通讯作者)
发表日期	2018
ISSN	1753-8947
EISSN	1753-8955
起始页码	1151
结束页码	1165
卷号	11 期号:11
英文摘要	Surface supply relationships between glaciers and lakes are needed to analyze and understand hydrological processes at regional and global scales. However, these supply relationships still cannot be extracted efficiently by existing methods. This paper proposes an automatic and efficient approach to extracting surface supply relationships between glaciers and lakes based on meltwater flow paths. The approach includes two stages: (1) identifying direct connections between objects (i.e. glaciers and lakes) based on flow direction derived from digital terrain analysis on a gridded digital elevation model (DEM) and (2) deriving all (or user-specified) kinds of surface supply relationships based on graph search. All computation-intensive steps in this approach have been parallelized; and all steps in the proposed approach have been integrated as an automatic program. Results for the Tibetan Plateau show that given outline data for glaciers and lakes and the Shuttle Radar Topography Mission DEM, the proposed approach can automatically derive diverse surface supply relationships under user-specified restrictions on the attributes of the supply route. The parallelization in the approach effectively improves the computing efficiency. The proposed approach could also be applied to developing a detailed fundamental dataset of supply relationships between glaciers and lakes for other region or period.
关键词	CLIMATE-CHANGE INVENTORY REGION DEM
英文关键词	Glaciers and lakes; surface supply relationship; digital terrain analysis; parallel computing; Tibetan Plateau
语种	英语
WOS研究方向	Physical Geography ; Remote Sensing
WOS类目	Geography, Physical ; Remote Sensing
WOS记录号	WOS:000444256900004
来源期刊	INTERNATIONAL JOURNAL OF DIGITAL EARTH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259325
推荐引用方式 GB/T 7714	Ai, Bei-Bei,Qin, Cheng-Zhi,Ye, Qinghua,et al. An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,11(11).
APA	Ai, Bei-Bei,Qin, Cheng-Zhi,Ye, Qinghua,Zhu, A-Xing,&Cogley, Graham.(2018).An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau.INTERNATIONAL JOURNAL OF DIGITAL EARTH,11(11).
MLA	Ai, Bei-Bei,et al."An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau".INTERNATIONAL JOURNAL OF DIGITAL EARTH 11.11(2018).