他们尤其考量了位于底层永久冻结土壤和上层季节性冻结土壤之间的居间不冻层的形成。
They looked in particular at the creation of "taliks", which are patches of unfrozen ground sandwiched between layers of permanently frozen soil lower down and a seasonally frozen patch of soil above.
该分析发现，所有的大陆冰川已经在缩减，永久冻结带正在融化，春季水平面高度在改变，湖泊河流温度也在上升。
The analysis found that glaciers in every continent have been shrinking, permafrost is melting, the peak of river levels in spring is shifting, and lake and river temperatures are rising.
劳伦斯和美国国家冰雪数据中心的研究人员利用计算机模型分析了海冰的缩减对气温上升和永久冻结带融化的影响。
Dr Lawrence and researchers at National Snow and ice Data Centre used computer models to analyse how the loss of sea ice could influence rising air temperatures and the melting of permafrost.
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