But in the model , warmer winters raised the snowline , drasically reducing the crucial mountain snowpack , the researchers told the amercian geophysical union in san francisco 但是研究者们对旧金山的美国地球物理协会说,在模拟试验中,暖冬使雪线升高,并大大地缩小了主要的山地积雪场面积。
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We realised that huge areas of the snowpack in the sierra went down to 15 per cent of today ‘ s values , says michael dettinger , a research hydrologist at the scripps institution of oceanography in la jolla , california 加利福尼亚拉霍亚市斯克里普斯海洋研究所的一位水文学家迈克尔?德廷杰说,我们发现,在谢拉地区积雪场的大部分面积已在目前的基础上缩小了15 。