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DOI | 10.1029/2020GL089951 |
Impact of Antarctic Meltwater Forcing on East Asian Climate Under Greenhouse Warming | |
Oh J.-H.; Park W.; Lim H.-G.; Noh K.M.; Jin E.K.; Kug J.-S. | |
发表日期 | 2020 |
ISSN | 0094-8276 |
卷号 | 47期号:21 |
英文摘要 | In recent decades, Antarctic ice sheet/shelf melting has been accelerated, releasing freshwater into the Southern Ocean. It has been suggested that the meltwater flux could lead to cooling in the Southern Hemisphere, which would retard global warming and further induce a northward shift of the Intertropical Convergence Zone (ITCZ). In this study, we use experimental ensemble climate simulations to show that Antarctic meltwater forcing has distinct regional climate impacts over the globe, leading in particular to regional warming in East Asia, which offsets the global cooling effect by the meltwater forcing. It is suggested that Antarctic meltwater forcing leads to a negative precipitation anomaly in the Western North Pacific (WNP) via cooling in the tropics and the northward shift of the ITCZ. This suppressed convection in WNP induces an anticyclonic flow over the North Pacific, which leads to regional warming in East Asia. This hypothesis is supported by analyses of interensemble spread and long-term control simulations. ©2020. American Geophysical Union. All Rights Reserved. |
英文关键词 | Earth sciences; Geophysics; Antarctic ice sheets; Climate simulation; Control simulation; Greenhouse warming; Intertropical convergence zone; Precipitation anomalies; Southern Hemisphere; Western North Pacific; Global warming; atmospheric convection; cooling; global warming; greenhouse gas; ice sheet; ice shelf; intertropical convergence zone; meltwater; precipitation assessment; Antarctica; Southern Ocean |
语种 | 英语 |
来源期刊 | Geophysical Research Letters
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/169498 |
作者单位 | Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea; GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Atmosphere and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States; Korea Polar Research Institute (KOPRI), Incheon, South Korea |
推荐引用方式 GB/T 7714 | Oh J.-H.,Park W.,Lim H.-G.,et al. Impact of Antarctic Meltwater Forcing on East Asian Climate Under Greenhouse Warming[J],2020,47(21). |
APA | Oh J.-H.,Park W.,Lim H.-G.,Noh K.M.,Jin E.K.,&Kug J.-S..(2020).Impact of Antarctic Meltwater Forcing on East Asian Climate Under Greenhouse Warming.Geophysical Research Letters,47(21). |
MLA | Oh J.-H.,et al."Impact of Antarctic Meltwater Forcing on East Asian Climate Under Greenhouse Warming".Geophysical Research Letters 47.21(2020). |
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