1979-2014年全球变暖背景下青藏高原气候变化特征

Characteristics of Climate Change over the Tibetan Plateau Under the Global Warming During 1979-2014

近几十年来全球变暖受到越来越广泛的关注,然而全球变暖从1998年开始趋缓,但青藏高原却呈现加速增暖的趋势。本文基于前人研究,系统回顾了青藏高原气温、积雪、降水和大气热源等四方面在全球变暖背景下的变化,指出高原的加速增温导致了积雪迅速融化,降水明显增多的同时,高原热源却呈现减弱趋势。

Global warming has been a hot issue during recent decades, while the global warming hiatus since 1998 was detected as documented by many papers, meanwhile the Tibetan Plateau （TP） experiencing a rapid warming process. Based on previous studies, this paper mainly reviews the TP climate change under the global warming in four aspects： temperature, snow cover, precipitation and atmospheric apparent heat source, and points out that the accelerated warming over the TP results in the retreat of snow cover accompanied by the increase of precipitation. Though the TP heat source has been declined in recent decades whether based on observation or reanalysis datasets, it shows large uncertainties.