气候变化领域集成服务门户(CCPortal): Estimating the volume of glaciers in the Himalayan-Karakoram region using different methods

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DOI	10.5194/tc-8-2313-2014
	Estimating the volume of glaciers in the Himalayan-Karakoram region using different methods
	Frey H.; Machguth H.; Huss M.; Huggel C.; Bajracharya S.; Bolch T.; Kulkarni A.; Linsbauer A.; Salzmann N.; Stoffel M.
发表日期	2014
ISSN	19940416
卷号	8 期号:6
英文摘要	Ice volume estimates are crucial for assessing water reserves stored in glaciers. Due to its large glacier coverage, such estimates are of particular interest for the Himalayan-Karakoram (HK) region. In this study, different existing methodologies are used to estimate the ice reserves: three area-volume relations, one slope-dependent volume estimation method, and two ice-thickness distribution models are applied to a recent, detailed, and complete glacier inventory of the HK region, spanning over the period 2000-2010 and revealing an ice coverage of 40 775 km2. An uncertainty and sensitivity assessment is performed to investigate the influence of the observed glacier area and important model parameters on the resulting total ice volume. Results of the two ice-thickness distribution models are validated with local ice-thickness measurements at six glaciers. The resulting ice volumes for the entire HK region range from 2955 to 4737 km3, depending on the approach. This range is lower than most previous estimates. Results from the ice thickness distribution models and the slope-dependent thickness estimations agree well with measured local ice thicknesses. However, total volume estimates from area-related relations are larger than those from other approaches. The study provides evidence on the significant effect of the selected method on results and underlines the importance of a careful and critical evaluation. © Author(s) 2014.
学科领域	estimation method; glacier; ice thickness; inventory; snow cover; spatial distribution; volume; water resource; Himalayas; Karakoram
语种	英语
scopus关键词	estimation method; glacier; ice thickness; inventory; snow cover; spatial distribution; volume; water resource; Himalayas; Karakoram
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120174
作者单位	Department of Geography, University of Zurich, Zurich, Switzerland; Arctic Technology Center, Technical University of Denmark, Kgs. Lyngby, Denmark; Department of Geosciences, University of Fribourg, Fribourg, Switzerland; International Centre for Integrated Mountain Development, ICIMOD, Kathmandu, Nepal; Instuitute for Cartography, Technische Universität Dresden, Dresden, Germany; Divecha Center for Climate Change, Indian Institute of Science, Bangalore, India; Climatic Change and Climate Impacts, Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland
推荐引用方式 GB/T 7714	Frey H.,Machguth H.,Huss M.,et al. Estimating the volume of glaciers in the Himalayan-Karakoram region using different methods[J],2014,8(6).
APA	Frey H..,Machguth H..,Huss M..,Huggel C..,Bajracharya S..,...&Stoffel M..(2014).Estimating the volume of glaciers in the Himalayan-Karakoram region using different methods.Cryosphere,8(6).
MLA	Frey H.,et al."Estimating the volume of glaciers in the Himalayan-Karakoram region using different methods".Cryosphere 8.6(2014).