Enhanced mid-latitude tropospheric warming in satellite measurements
Enhanced mid-latitude tropospheric warming in satellite measurements
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DOI：
10.1126/science.1125566
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发表时间：
2006-05-26
期刊：
影响因子：
56.9
通讯作者：
Reichler, Thomas
中科院分区：
文献类型：
--
作者：
Fu, Qiang;Johanson, Celeste M.;Reichler, Thomas
根据采用最先进的检索算法处理的星载微波探测装置的辐射率，对 1979 年至 2005 年对流层和平流层温度趋势的空间分布进行了检查。我们发现，相对于各层的全球平均趋势，两个半球在15°至45°纬度带都经历了增强的对流层变暖和平流层变冷，这是热带环流扩大和对流层急流及其相关副热带干燥区向极地移动的模式。这种独特的趋势空间格局似乎是这一 27 年记录的一个显着特征。
The spatial distribution of tropospheric and stratospheric temperature trends for 1979 to 2005 was examined, based on radiances from satellite-borne microwave sounding units that were processed with state-of-the-art retrieval algorithms. We found that relative to the global-mean trends of the respective layers, both hemispheres have experienced enhanced tropospheric warming and stratospheric cooling in the 15 to 45° latitude belt, which is a pattern indicative of a widening of the tropical circulation and a poleward shift of the tropospheric jet streams and their associated subtropical dry zones. This distinctive spatial pattern in the trends appears to be a robust feature of this 27-year record.