气候变化领域集成服务门户(CCPortal): High-resolution interactive modelling of the mountain glacier-atmosphere interface: An application over the Karakoram

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DOI	10.5194/tc-7-779-2013
	High-resolution interactive modelling of the mountain glacier-atmosphere interface: An application over the Karakoram
	Collier E.; Mölg T.; Maussion F.; Scherer D.; Mayer C.; Bush A.B.G.
发表日期	2013
ISSN	19940416
卷号	7 期号:3
英文摘要	The traditional approach to simulations of alpine glacier mass balance (MB) has been one-way, or offline, thus precluding feedbacks from changing glacier surface conditions on the atmospheric forcing. In addition, alpine glaciers have been only simply, if at all, represented in atmospheric models to date. Here, we extend a recently presented, novel technique for simulating glacier-atmosphere interactions without the need for statistical downscaling, through the use of a coupled high-resolution mesoscale atmospheric and physically-based climatic mass balance (CMB) modelling system that includes glacier CMB feedbacks to the atmosphere. We compare the model results over the Karakoram region of the northwestern Himalaya with remote sensing data for the ablation season of 2004 as well as with in situ glaciological and meteorological measurements from the Baltoro glacier. We find that interactive coupling has a localized but appreciable impact on the near-surface meteorological forcing data and that incorporation of CMB processes improves the simulation of variables such as land surface temperature and snow albedo. Furthermore, including feedbacks from the glacier model has a non-negligible effect on simulated CMB, reducing modelled ablation, on average, by 0.1m w.e. (-6.0 %) to a total of -1.5m w.e. between 25 June-31 August 2004. The interactively coupled model shows promise as a new, multi-scale tool for explicitly resolving atmospheric-CMB processes of mountain glaciers at the basin scale. © Author(s) 2013.
学科领域	atmospheric forcing; basin analysis; glacier mass balance; image resolution; land surface; mesoscale meteorology; mountain; remote sensing; simulation; statistical analysis; valley glacier; Himalayas; Karakoram
语种	英语
scopus关键词	atmospheric forcing; basin analysis; glacier mass balance; image resolution; land surface; mesoscale meteorology; mountain; remote sensing; simulation; statistical analysis; valley glacier; 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/120268
作者单位	Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Canada; Department of Climatology, Technische Universität Berlin, Berlin, Germany; Commission for Geodesy and Glaciology, Bavarian Academy of Sciences and Humanities, Munich, Germany
推荐引用方式 GB/T 7714	Collier E.,Mölg T.,Maussion F.,et al. High-resolution interactive modelling of the mountain glacier-atmosphere interface: An application over the Karakoram[J],2013,7(3).
APA	Collier E.,Mölg T.,Maussion F.,Scherer D.,Mayer C.,&Bush A.B.G..(2013).High-resolution interactive modelling of the mountain glacier-atmosphere interface: An application over the Karakoram.Cryosphere,7(3).
MLA	Collier E.,et al."High-resolution interactive modelling of the mountain glacier-atmosphere interface: An application over the Karakoram".Cryosphere 7.3(2013).