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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Changes in Snow Cover and Snow Water Equivalent Due to Global Warming Simulated by a 20km-mesh Global Atmospheric Model
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Changes in Snow Cover and Snow Water Equivalent Due to Global Warming Simulated by a 20km-mesh Global Atmospheric Model

机译：20公里网眼全球大气模型模拟的全球变暖导致的积雪和雪水当量变化

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摘要

References(8) Cited-By(19) Supplementary materials(1) Simulations under present (end of the 20th Century) and future conditions (end of the 21st Century with SRES A1B scenario) by using a 20 km-mesh atmospheric general circulation model (AGCM) over 10 years are conducted and the changes in snow due to global warming are investigated.The seasonal march of the snow cover in the present simulation is comparable to that of satellite-based observational data. Distributions of the simulated snow cover and snow water equivalent (SWE) reflect the detailed geographical features.Due to global warming, the beginning of the snow-accumulating season (the end of the snow-melting season) will occur later (earlier) in most snow regions, and the snow cover will decrease except for very few exceptions. SWE will also decrease in wide areas, but over the cold regions (Siberia and the northern parts of North America), SWE will increase due to increases of snowfall in the coldest season.In both the change and the percentage change of the SWE, we can find that the detailed geographical features effect on them. In Japan, the SWE will decrease over the heavy snow areas. However, the percentage changes are relatively smaller over the colder areas.
机译：参考文献（8）被引用的文献（19）补充材料（1）使用20 km网眼的大气总环流模型在当前条件下（20世纪末）和未来条件下（21世纪末采用SRES A1B情景进行模拟） （AGCM）进行了10年，研究了由于全球变暖引起的积雪变化。本模拟中积雪的季节性行进与基于卫星的观测数据相当。模拟的雪盖和雪水当量（SWE）的分布反映了详细的地理特征。由于全球变暖，积雪季节的开始（融雪季节的结束）将在大多数情况下（较早）发生。积雪地区，除极少数例外，积雪将减少。西南偏远地区也会有所减少，但在寒冷地区（西伯利亚和北美北部），由于最冷季降雪量的增加，西南偏东地区将会增加。可以发现详细的地理特征对其产生了影响。在日本，SWE将在大雪地区减少。但是，在寒冷地区，百分比变化相对较小。

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