Amplified summer warming in Europe–West Asia and Northeast Asia after the mid-1990s
Amplified summer warming in Europe–West Asia and Northeast Asia after the mid-1990s
复制标题
20 世纪 90 年代中期后欧洲、西亚和东北亚夏季变暖加剧
DOI：
10.1088/1748-9326/aa7909
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Shuanglin Li
中科院分区：
文献类型：
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作者：
Hong Xiaowei;Riyu Lu;Shuanglin Li
区域温度变化是影响农业、生态系统和社会的关键因素，它们在很大程度上依赖于当地的温度。在20世纪90年代中期前后的夏季，欧亚大陆呈现出一种不均匀的增温模式，欧洲-西亚和东北亚的增温明显增强，而中亚的增温弱得多。结果表明，非均匀增温与大西洋多年代际涛动（AMO）的相移和丝绸之路模式（SRP）的年代际变化是一致的，丝绸之路模式是夏季欧亚大陆上空对流层上层的遥相关模式。我们认为，AMO可能会调节SRP的年代际变化，进而引起温度变化的纬向不对称性。研究结果对基于可预测AMO的欧亚大陆区域变暖格局的年代际预测具有重要意义。
Regional temperature changes are a crucial factor in affecting agriculture, ecosystems and societies, which depend greatly on local temperatures. We identify a nonuniform warming pattern in summer around the mid-1990s over the Eurasian continent, with a predominant amplified warming over Europe–West Asia and Northeast Asia but much weaker warming over Central Asia. It is found that the nonuniform warming concurs with both the phase shift of the Atlantic Multi-decadal Oscillation (AMO) and the decadal change in the Silk Road Pattern (SRP), which is an upper-tropospheric teleconnection pattern over the Eurasian continent during summer. We suggest that the AMO may modulate the decadal change in SRP and then induce the zonal asymmetry in temperature changes. Our results have important implications for decadal prediction of regional warming pattern in Eurasia based on the predictable AMO.