| DOI: | 10.1080/16742834.2020.1715199
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| 论文题名: | Projection of the East Asian westerly jet under six global warming targets |
| 作者: | FU Y.; GUO D.
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| 刊名: | Atmospheric and Oceanic Science Letters
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| ISSN: | 16742834
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| 出版年: | 2020
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| 卷: | 13, 期:2 | | 语种: | 英语
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| 英文关键词: | climate change
; CMIP5
; East Asian westerly jet
; Global warming target
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| 英文摘要: | This study investigates the projected changes in the East Asian westerly jet (EAJ) under six global warming targets (1.5°C, 2.0°C, 2.5°C, 3.0°C, 3.5°C, and 4.0°C) relative to the present climate, using the outputs of CMIP5 models. The results show that the westerly tends to weaken slightly under the 1.5°C warming target. Under the 2.0°C target, it is projected to intensify south of the EAJ’s axis (approximately 40°N) and decay north of the axis. This change becomes increasingly evident under the 2.5°C and higher warming targets, which suggests that the EAJ’s axis will move farther and farther southward, but its intensity will change little with increasing global warming. Further analyses suggest that the change in the EAJ is closely related to the inhomogeneous rising rate of air temperature in the mid–upper troposphere. The relatively slow-rising air temperature in the mid–upper troposphere over the EAJ’s entrance and exit regions will lead to a negative (positive) meridional temperature gradient to the south (north), and will then accelerate (decelerate) the westerly on the EAJ’s south/north side. © 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/158746
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| Appears in Collections: | 气候变化与战略
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作者单位: | Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
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| Recommended Citation: | |
FU Y.,GUO D.. Projection of the East Asian westerly jet under six global warming targets[J]. Atmospheric and Oceanic Science Letters,2020-01-01,13(2)
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