Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s10584-017-2102-1 |
Slowing down the retreat of the Morteratsch glacier, Switzerland, by artificially produced summer snow: a feasibility study | |
Oerlemans, Johannes1; Haag, Martin2; Keller, Felix3 | |
2017-11-01 | |
发表期刊 | CLIMATIC CHANGE
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ISSN | 0165-0009 |
EISSN | 1573-1480 |
出版年 | 2017 |
卷号 | 145 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; Switzerland |
英文摘要 | Many large valley glaciers in the world are retreating at historically unprecedented rates. Also in the Alps, where warming over the past decades has been more than twice as large as the global mean, all major glaciers have retreated over distances of several kilometers over the past hundred years. The Morteratsch Glacier, Pontresina, Switzerland, is a major touristic attraction. Due to strong retreat, the lowest part of the glacier is getting out of sight from the gravel road that provided direct access to the glacier front. The Community of Pontresina has commissioned a preparatory study to find out if it is possible to slow down the retreat of the Morteratsch Glacier in an environmentally friendly way. In this article, we report on the outcome of such a study, based on a modeling approach. Our analysis is based on a 20-year weather station record from the lower part of the glacier, combined with calculations with a calibrated ice-flow model. We arrive at the conclusion that producing summer snow in the ablation zone over a larger area (typically 0.5 to 1 km(2)) may have a significant effect on the rate of retreat on a timescale of decades. We consider various scenarios of climate change: (i) no change, (ii) a rise of the equilibrium-line altitude (ELA) by 1, 2, and 4 m/yr. Projections of glacier length are calculated until the year 2100. It takes about 10 years before snow deposition in the higher ablation zone starts to affect the position of the glacier snout. For the case of modest warming, the difference in glacier length between the snow and no-snow experiments becomes 400 to 500 m within two decades. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415031800014 |
WOS关键词 | VADRET DA MORTERATSCH ; MASS-BALANCE ; FUTURE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29840 |
专题 | 气候变化 |
作者单位 | 1.Univ Utrecht, Inst Marine & Atmospher Res IMAU, Princetonpl 5, NL-3584 CC Utrecht, Netherlands; 2.Fachhsch Nordwestschweiz, Olten, Switzerland; 3.Acad Engiadina, Samedan, Switzerland |
推荐引用方式 GB/T 7714 | Oerlemans, Johannes,Haag, Martin,Keller, Felix. Slowing down the retreat of the Morteratsch glacier, Switzerland, by artificially produced summer snow: a feasibility study[J]. CLIMATIC CHANGE,2017,145. |
APA | Oerlemans, Johannes,Haag, Martin,&Keller, Felix.(2017).Slowing down the retreat of the Morteratsch glacier, Switzerland, by artificially produced summer snow: a feasibility study.CLIMATIC CHANGE,145. |
MLA | Oerlemans, Johannes,et al."Slowing down the retreat of the Morteratsch glacier, Switzerland, by artificially produced summer snow: a feasibility study".CLIMATIC CHANGE 145(2017). |
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