气候变化领域集成服务门户(CCPortal): Summer hydrological characteristics in glacier and non-glacier catchments in the Nam Co Basin, southern Tibetan Plateau

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DOI	10.1007/s12665-015-4643-9
	Summer hydrological characteristics in glacier and non-glacier catchments in the Nam Co Basin, southern Tibetan Plateau
	Gao, Tanguang; Kang, Shichang; Zhang, Tingjun; Zhou, Shiqiao; Cuo, Lan; Sillanpaa, Mika; Zhang, Yulan
发表日期	2015
ISSN	1866-6280
EISSN	1866-6299
卷号	74 期号:3
英文摘要	Distribution of glaciers in Tibetan Plateau (TP) has been reduced during the last decades under the global warming. Understanding the hydrological features related to glacier melt is crucial for future water resource assessment as glaciers are largely experiencing strong retreat. Summer hydrological characteristics for three various scale catchments with or without glacier coverage in the Nam Co Basin over the TP for a 2-year period were investigated in this work. Angqu catchment, the largest catchment in the Nam Co Basin with a drainage area of 1479 km(2), is located in the west of Nam Co Basin and mainly supplied by precipitation and snowmelt. Niyaqu catchment is located in the eastern Nam Co Basin with 388 km(2), and its discharge is mainly supplied by precipitation and groundwater. Qugaqie catchment occupied the southern Nam Co Basin (59 km(2)) is a typical glacier melting supplied river. During the summer (May-September), precipitation was 533, 564, and 503 mm in Angqu, Niyaqu, and Qugaqie catchments, during 2007 and 2008, respectively. Not only the amount but also the seasonality of precipitation is different at the three catchments. In summer of 2007 and 2008, runoff was 29 and 164 mm, respectively, in Angqu; 77 and 341 mm, respectively, for Niyaqu, and 658 and 797 mm, respectively, for Qugaqie. At Niyaqu and Qugaqie, 59 and 72 % of the runoff variation was accounted by precipitation, respectively. Although there were no significant correlations between runoff and air temperature for Niyaqu and Qugaqie basins, the impact of glacier melting on the Qugaqie runoff was observed in summer.
关键词	Climate Glacier melting Runoff Nam Co Basin Tibetan Plateau
学科领域	Environmental Sciences & Ecology; Geology; Water Resources
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
来源期刊	ENVIRONMENTAL EARTH SCIENCES
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/111765
作者单位	Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Gao, Tanguang,Kang, Shichang,Zhang, Tingjun,et al. Summer hydrological characteristics in glacier and non-glacier catchments in the Nam Co Basin, southern Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2015,74(3).
APA	Gao, Tanguang.,Kang, Shichang.,Zhang, Tingjun.,Zhou, Shiqiao.,Cuo, Lan.,...&Zhang, Yulan.(2015).Summer hydrological characteristics in glacier and non-glacier catchments in the Nam Co Basin, southern Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,74(3).
MLA	Gao, Tanguang,et al."Summer hydrological characteristics in glacier and non-glacier catchments in the Nam Co Basin, southern Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 74.3(2015).