气候变化领域集成服务门户(CCPortal): Ice sheet mass loss caused by dust and black carbon accumulation

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DOI	10.5194/tc-9-1845-2015
	Ice sheet mass loss caused by dust and black carbon accumulation
	Goelles T.; Bøggild C.E.; Greve R.
发表日期	2015
ISSN	19940416
卷号	9 期号:5
英文摘要	Albedo is the dominant factor governing surface melt variability in the ablation area of ice sheets and glaciers. Aerosols such as mineral dust and black carbon (soot) accumulate on the ice surface and cause a darker surface and therefore a lower albedo. The darkening effect on the ice surface is currently not included in sea level projections, and the effect is unknown. We present a model framework which includes ice dynamics, aerosol transport, aerosol accumulation and the darkening effect on ice albedo and its consequences for surface melt. The model is applied to a simplified geometry resembling the conditions of the Greenland ice sheet, and it is forced by several temperature scenarios to quantify the darkening effect of aerosols on future mass loss. The effect of aerosols depends non-linearly on the temperature rise due to the feedback between aerosol accumulation and surface melt. According to our conceptual model, accounting for black carbon and dust in future projections of ice sheet changes until the year 3000 could induce an additional volume loss of 7 %. Since we have ignored some feedback processes, the impact might be even larger.
学科领域	aerosol property; albedo; black carbon; dust; ice sheet; meltwater; sea level change; temperature effect; Arctic; Greenland; Greenland Ice Sheet
语种	英语
scopus关键词	aerosol property; albedo; black carbon; dust; ice sheet; meltwater; sea level change; temperature effect; Arctic; Greenland; Greenland Ice Sheet
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/119813
作者单位	University Centre in Svalbard (UNIS), Longyearbyen, Norway; Norwegian University of Life Sciences (NMBU), Aas, Norway; Arctic Technology Centre, Technical University of Denmark, Kgs. Lyngby, Denmark; Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japan
推荐引用方式 GB/T 7714	Goelles T.,Bøggild C.E.,Greve R.. Ice sheet mass loss caused by dust and black carbon accumulation[J],2015,9(5).
APA	Goelles T.,Bøggild C.E.,&Greve R..(2015).Ice sheet mass loss caused by dust and black carbon accumulation.Cryosphere,9(5).
MLA	Goelles T.,et al."Ice sheet mass loss caused by dust and black carbon accumulation".Cryosphere 9.5(2015).