Snow conditions in mountains and climate change - a global view.
Snow conditions in mountains and climate change - a global view.
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山区雪情和气候变化——全球视野。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
L. Menzel
中科院分区：
文献类型：
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作者：
K. Verzano;L. Menzel
全球水模型WaterGAP由两个全球气候模型的气候观测和情景驱动，每个模型由两个SRES排放情景驱动，用于模拟世界主要山区的积雪条件以及排山河流的流量状况，并研究气候变化对未来积雪和流量特征的影响。调查证明，WaterGAP对积雪和融雪的描述相对简单，普遍适用于山区，在河流流量再现方面取得了令人满意的效果。该研究的全球视角使人们能够首次概述全球主要山脉与水相关的特征的未来可能发展。气候影响分析显示，地球上所有山区的平均雪水当量以及每年平均雪天数预计都会减少，不同情景以及不同山区之间存在差异。
The global water model WaterGAP forced by climate observations and scenarios from two Global Climate Models, each driven by two SRES emission scenarios, was used to simulate snow conditions of major mountain areas of the world, as well as discharge regimes of rivers draining mountains, and to investigate the impact of climate change on future snow and discharge characteristics. The investigations prove that WaterGAP, with its relatively simple description of snow accumulation and snowmelt, is generally applicable to mountain regions, delivering satisfactory results regarding the reproduction of river discharge. The global perspective of the study enables a first-time overview on possible future developments in water-related characteristics of major mountain ranges worldwide. The climate impact analysis shows that the mean snow water equivalent, as well as the mean number of snow days per year, is projected to be reduced in all mountains on Earth, with differences between the individual scenarios, as well as between the different mountain regions.