Meteorological and Climatological Aspects of the Southern Patagonia Icefield
Meteorological and Climatological Aspects of the Southern Patagonia Icefield
复制标题
南巴塔哥尼亚冰原的气象和气候方面
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
A. Rivera
中科院分区：
文献类型：
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作者：
Jorge Carrasco;G. Casassa;A. Rivera
南巴塔哥尼亚冰原（SPI）位于南美洲南部中纬度地区，以西风带和锋面系统为主。这导致多云天气的频率很高（超过70%的时间）和降水事件。对过去一个世纪南方气象站的气温和降水资料的分析表明，直到80年代中期，总体变暖和降水减少，但此后没有观察到明显的变化。实际上，沿海站的降水在80年代以后有所增加。大气变量的中期行为给预测南美洲南部未来气候变化的后果带来了不确定性。
The Southern Patagonia Icefield (SPI) is located at mid-latitudes in southern South America, which is dominated by the westerly regime and frontal systems. This results in a high frequency of cloudy days (more than 70% of the time) and precipitation events. Analyses of air temperature and precipitation data from southern meteorological stations for the past century indicate an overall warming and decrease in precipitation until the mid-80’s, but no significant changes are observed afterwards. In fact, the coastal stations show an increase in precipitation after the 1980’s. The mid-term behavior of the atmospheric variables introduces uncertainties in predicting the consequences of future climate change in southern South America.