https://scholars.lib.ntu.edu.tw/handle/123456789/402050
標題: | Connecting tropical climate change with Southern Ocean heat uptake | 作者: | Yen-Ting Hwang Shang-Ping Xie Clara Deser Sarah M. Kang YEN-TING HWANG |
關鍵字: | global warming; heat uptake; teleconnection | 公開日期: | 九月-2017 | 卷: | 44 | 期: | 18 | 起(迄)頁: | 9449--9457 | 來源出版物: | Geophysical Research Letters | 摘要: | Under increasing greenhouse gas forcing, climate models project tropical warming that is greater in the Northern than the Southern Hemisphere, accompanied by a reduction in the northeast trade winds and a strengthening of the southeast trades. While the ocean-atmosphere coupling indicates a positive feedback, what triggers the coupled asymmetry and favors greater warming in the northern tropics remains unclear. Far away from the tropics, the Southern Ocean (SO) has been identified as the major region of ocean heat uptake. Beyond its local effect on the magnitude of sea surface warming, we show by idealized modeling experiments in a coupled slab ocean configuration that enhanced SO heat uptake has a profound global impact. This SO-to-tropics connection is consistent with southward atmospheric energy transport across the equator. Enhanced SO heat uptake results in a zonally asymmetric La-Nina-like pattern of sea surface temperature change that not only affects tropical precipitation but also has influences on the Asian and North American monsoons. ©2017. American Geophysical Union. All Rights Reserved. |
URI: | https://doi.org/10.1002/2017GL074972 http://scholars.lib.ntu.edu.tw/handle/123456789/402050 |
DOI: | 10.1002/2017GL074972 | SDG/關鍵字: | Atmospheric movements; Climate change; Climate models; Commerce; Global warming; Greenhouse gases; Oceanography; Submarine geophysics; Surface waters; Atmospheric energy; Greenhouse-gas forcing; Ocean heat uptake; Sea-surface temperature change; Southern Hemisphere; Teleconnections; Tropical climates; Tropical precipitation; Tropics; atmosphere-ocean coupling; atmospheric transport; climate modeling; greenhouse gas; La Nina; Northern Hemisphere; precipitation (climatology); sea surface temperature; teleconnection; tropical environment; Asia; North America; Southern Ocean |
顯示於: | 大氣科學系 |
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