气候变化领域集成服务门户(CCPortal): INFLUENCE OF SUPRAGLACIAL DEBRIS ON SUMMER ABLATION AND MASS BALANCE IN THE 24K GLACIER, SOUTHEAST TIBETAN PLATEAU

CCPortal

	INFLUENCE OF SUPRAGLACIAL DEBRIS ON SUMMER ABLATION AND MASS BALANCE IN THE 24K GLACIER, SOUTHEAST TIBETAN PLATEAU
	Yang Wei; Yao Tandong; Xu Baiqing; Zhou Hang
发表日期	2010
ISSN	0435-3676
卷号	92A 期号:3
英文摘要	Many temperate glaciers in the southeast Tibetan Plateau are covered by supraglacial debris in the ablation area To evaluate the effect of such debris on Summer ablation and mass balance. the surface ablation on the 24K Glacier was measured in the summer of 2008 Mean ablation rates varied from 10 to 52 mm/day, strongly correlated to debris thickness Synchronous observations of air temperature allowed application of a simple degree-day model to calculate ablation rates Maximum values of both ablation rate and degree-day factors appeared in the middle area of the glacier where the debt is layer thickness was about I cm The simulated daily ablation obtained from the degree-day approach showed that the debris layers significantly affected the total summer ablation The calculated ablation would be increased by 36% of the total ablation with the actual surface debris cover if glacier surface had been assumed to be entirely debris free If completely covered by 65 cm thick debris in the ablation area the glacier would experience a 59% decrease in summer ablation The presence of a debris cover also leads to a change in the ablation gradient in the ablation zone
关键词	debris cover ablation the 24K Glacier southeast Tibetan Plateau
学科领域	Physical Geography; Geology
语种	英语
WOS研究方向	Geography, Physical ; Geology
来源期刊	GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY
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/111596
作者单位	Chinese Acad Sci, Lab Tibetan Environm Changes & Land Surface Proc, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Yang Wei,Yao Tandong,Xu Baiqing,et al. INFLUENCE OF SUPRAGLACIAL DEBRIS ON SUMMER ABLATION AND MASS BALANCE IN THE 24K GLACIER, SOUTHEAST TIBETAN PLATEAU[J]. 中国科学院西北生态环境资源研究院,2010,92A(3).
APA	Yang Wei,Yao Tandong,Xu Baiqing,&Zhou Hang.(2010).INFLUENCE OF SUPRAGLACIAL DEBRIS ON SUMMER ABLATION AND MASS BALANCE IN THE 24K GLACIER, SOUTHEAST TIBETAN PLATEAU.GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY,92A(3).
MLA	Yang Wei,et al."INFLUENCE OF SUPRAGLACIAL DEBRIS ON SUMMER ABLATION AND MASS BALANCE IN THE 24K GLACIER, SOUTHEAST TIBETAN PLATEAU".GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY 92A.3(2010).