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首页> 外文期刊>Hydrology research >Snow cover response to climate change in a high alpine and half-glacierized basin in Switzerland
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Snow cover response to climate change in a high alpine and half-glacierized basin in Switzerland

机译：瑞士高寒半冰川盆地的积雪对气候变化的响应

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摘要

In alpine areas, the accumulation and melting of snow controls the hydrological regime. Even in watersheds where glacier melt dominates, the snow pack strongly influences the stream-flow dynamics. Prognostic simulations of the response of the snow pack to climate change were conducted in a high alpine and half-glacierized basin in central Switzerland. The snow cover and glacier were simulated using a high-resolution alpine surface model. The simulations cover a reference period (1981-2007) and two predictions (2071-2100) where the measured records of temperature, precipitation and longwave radiation were modified using six regional climate model projections for two different emission scenarios of greenhouse gases. The results show that the snow season shortens by one month at the beginning of the winter and by one and a half months at the end of the season, compared to today. The maximum snow water equivalent decreases by 27% on average. The difference in the response of the snow pack to a change in climate between the emission scenarios is rather small. The most pronounced effects of a warming climate are simulated for the highest altitudes, where all snow completely melts during summer and no snow remains for glacier accumulation.
机译：在高山地区，积雪和融雪控制着水文状况。即使在冰川融化占主导地位的流域，积雪也强烈影响着河流的水流动力学。在瑞士中部一个高寒半结冰的盆地进行了积雪对气候变化响应的预后模拟。使用高分辨率的高山表面模型模拟了积雪和冰川。模拟涵盖参考期（1981-2007）和两个预测（2071-2100），其中针对六个不同的温室气体排放情景，使用六个区域气候模型预测对温度，降水和长波辐射的实测记录进行了修改。结果表明，与今天相比，雪季在冬季开始时缩短了一个月，在雪季结束时缩短了一个半月。最大雪水当量平均减少27％。在排放情景之间，积雪对气候变化的响应差异很小。对于最高的海拔高度，模拟了气候变暖最明显的影响，在夏季，所有的积雪完全融化，没有积雪用于冰川积聚。

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  • 来源
    《Hydrology research》 |2010年第4期|P.230-240|共11页
  • 作者

    Jan Magnusson; Tobias Jonas; Ignacio Lopez-Moreno; Michael Lehning;

  • 作者单位

    WSL Institute for Snow andAvalanche Research SLF,Flueelastr. 11,Davos Dorf,Switzerland;

    rnWSL Institute for Snow andAvalanche Research SLF,Flueelastr. 11,Davos Dorf,Switzerland;

    rnInstituto Pirenaico de Ecologica, CSIC,Campus de Aula Dei,P.O. Box 202,Zaragoza,Spain;

    rnWSL Institute for Snow andAvalanche Research SLF,Flueelastr. 11,Davos Dorf,Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    glacier; global warming; modelling; snow cover; snow hydrology;

    机译：冰川;全球暖化;造型;雪盖;雪水文学;

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