Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0402.1 |
The Importance of Ocean Dynamical Feedback for Understanding the Impact of Mid-High-Latitude Warming on Tropical Precipitation Change | |
Yoshimori, Masakazu1,2; Abe-Ouchi, Ayako3,4,5; Tatebe, Hiroaki4; Nozawa, Toru6; Oka, Akira3 | |
2018-03-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:6页码:2417-2434 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | It has been shown that asymmetric warming between the Northern and Southern Hemisphere extratropics induces a meridional displacement of tropical precipitation. This shift is believed to be due to the extra energy transported from the differentially heated hemisphere through changes in the Hadley circulation. Generally, the column-integrated energy flux in the mean meridional overturning circulation follows the direction of the upper, relatively dry branch, and tropical precipitation tends to be intensified in the hemisphere with greater warming. This framework was originally applied to simulations that did not include ocean dynamical feedback, but was recently extended to take the ocean heat transport change into account. In the current study, an atmosphere-ocean general circulation model applied with a regional nudging technique is used to investigate the impact of extratropical warming on tropical precipitation change under realistic future climate projections. It is shown that warming at latitudes poleward of 40 degrees causes the northward displacement of tropical precipitation from October to January. Warming at latitudes poleward of 60 degrees alone has a much smaller effect. This change in the tropical precipitation is largely explained by the atmospheric moisture transport caused by changes in the atmospheric circulation. The larger change in ocean heat transport near the equator, relative to the atmosphere, is consistent with the extended energy framework. The current study provides a complementary dynamical framework that highlights the importance of midlatitude atmospheric eddies and equatorial ocean upwelling, where the atmospheric eddy feedback modifies the Hadley circulation resulting in the northward migration of precipitation and the ocean dynamical feedback damps the northward migration from the equator. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427447000021 |
WOS关键词 | INTERTROPICAL CONVERGENCE ZONE ; LAST GLACIAL MAXIMUM ; ENERGY FLUX EQUATOR ; SEA-ICE LOSS ; HEAT-TRANSPORT ; INTERANNUAL VARIATIONS ; CLIMATE-CHANGE ; ITCZ LOCATION ; CIRCULATION ; POSITION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20212 |
专题 | 气候变化 |
作者单位 | 1.Hokkaido Univ, Fac Environm Earth Sci, Global Inst Collaborat Res & Educ, Sapporo, Hokkaido, Japan; 2.Hokkaido Univ, Arctic Res Ctr, Sapporo, Hokkaido, Japan; 3.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan; 4.Japan Agcy Marine Earth Sci & Technol, Yokohama, Kanagawa, Japan; 5.Natl Inst Polar Res, Tachikawa, Tokyo, Japan; 6.Okayama Univ, Okayama, Japan |
推荐引用方式 GB/T 7714 | Yoshimori, Masakazu,Abe-Ouchi, Ayako,Tatebe, Hiroaki,et al. The Importance of Ocean Dynamical Feedback for Understanding the Impact of Mid-High-Latitude Warming on Tropical Precipitation Change[J]. JOURNAL OF CLIMATE,2018,31(6):2417-2434. |
APA | Yoshimori, Masakazu,Abe-Ouchi, Ayako,Tatebe, Hiroaki,Nozawa, Toru,&Oka, Akira.(2018).The Importance of Ocean Dynamical Feedback for Understanding the Impact of Mid-High-Latitude Warming on Tropical Precipitation Change.JOURNAL OF CLIMATE,31(6),2417-2434. |
MLA | Yoshimori, Masakazu,et al."The Importance of Ocean Dynamical Feedback for Understanding the Impact of Mid-High-Latitude Warming on Tropical Precipitation Change".JOURNAL OF CLIMATE 31.6(2018):2417-2434. |
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