Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04623-5 |
The "sticky' ITCZ: ocean-moderated ITCZ shifts | |
Green, Brian1,2; Marshall, John1; Campin, Jean-Michel1 | |
2019-07-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:1-19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Across a range of simulations with a coupled atmosphere-ocean climate model, shifts in the intertropical convergence zone (ITCZ) are induced by an interhemispheric heating contrast. The response to heating anomalies which are polar amplified are contrasted with those which are largest in the tropics. First, we find that ITCZ shifts are always damped relative to simulations in which the ocean circulation is held fixed, irrespective of the heating distribution, keeping the ITCZ stuck to latitudes near the equator. The damping is primarily due to the ocean's anomalous cross-equatorial energy transport associated with the coupling of the trade winds to an oceanic cross-equatorial cell (CEC). Second, we find that the damping effect is strongest when the forcing distribution is polar-amplified, which enhances the gross stability of the CEC and maximizes the efficiency of its cross-equatorial energy transport. Third, we argue that the ocean's energy transport can have secondary impacts on ITCZ shifts through its interaction with climate feedbacks. Finally, we discuss the implications of our study for our understanding of the role of CECs in damping ITCZ shifts and the atmosphere's energy balance. |
英文关键词 | Intertropical convergence zone Trade winds Hadley cell Subtropical cell |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471722400001 |
WOS关键词 | HEAT-TRANSPORT ; RADIATIVE FEEDBACKS ; CLIMATE ; ATMOSPHERE ; DYNAMICS ; POSITION ; MODEL ; SENSITIVITY ; GCM |
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/184356 |
专题 | 气候变化 |
作者单位 | 1.MIT, 77 Massachusetts Ave,Bldg 54, Cambridge, MA 02139 USA; 2.Univ Washington, Joint Inst Study Atmosphere & Ocean, 3737 Brooklyn Ave NE, Seattle, WA 98105 USA |
推荐引用方式 GB/T 7714 | Green, Brian,Marshall, John,Campin, Jean-Michel. The "sticky' ITCZ: ocean-moderated ITCZ shifts[J]. CLIMATE DYNAMICS,2019,53:1-19. |
APA | Green, Brian,Marshall, John,&Campin, Jean-Michel.(2019).The "sticky' ITCZ: ocean-moderated ITCZ shifts.CLIMATE DYNAMICS,53,1-19. |
MLA | Green, Brian,et al."The "sticky' ITCZ: ocean-moderated ITCZ shifts".CLIMATE DYNAMICS 53(2019):1-19. |
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