Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086445 |
Nonlinear Damping of ITCZ Migrations Due to Ekman Ocean Energy Transport | |
Afargan-Gerstman, Hula1,2; Adam, Ori1 | |
2020-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel; Switzerland |
英文摘要 | The role of tropical wind-driven ocean circulation in setting the position of the Intertropical Convergence Zone (ITCZ) is studied using an atmospheric model coupled to a slab ocean with parameterized Ekman energy transport. Unlike previous studies, the parameterized cross-equatorial ocean energy transport, which is critical for the coupled response, is explicitly represented as the curl of the wind stress at the equator. A nonlinear sensitivity of the ITCZ position to hemispherically asymmetric heating and ocean stratification is seen, which is primarily linked to the partitioning of cross-equatorial energy transport between (i) the atmosphere and ocean and (ii) atmospheric mean and transient eddy components. Due to the nonmonotonic response of transient eddies to the asymmetric heating, amplified or damped response is possible. The common assumption of a linear relation between the ITCZ position and hemispherically asymmetric heating is therefore found to be inadequate when large climatic variations are considered. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529112700035 |
WOS关键词 | HEAT-TRANSPORT ; IDEALIZED SIMULATIONS ; HADLEY CIRCULATIONS ; PART I ; POSITION ; PRECIPITATION ; DYNAMICS ; EXTENT ; GCM |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/279771 |
专题 | 气候变化 |
作者单位 | 1.Hebrew Univ Jerusalem, Fredy & Nadine Herrmann Inst Earth Sci, Jerusalem, Israel; 2.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Afargan-Gerstman, Hula,Adam, Ori. Nonlinear Damping of ITCZ Migrations Due to Ekman Ocean Energy Transport[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(5). |
APA | Afargan-Gerstman, Hula,&Adam, Ori.(2020).Nonlinear Damping of ITCZ Migrations Due to Ekman Ocean Energy Transport.GEOPHYSICAL RESEARCH LETTERS,47(5). |
MLA | Afargan-Gerstman, Hula,et al."Nonlinear Damping of ITCZ Migrations Due to Ekman Ocean Energy Transport".GEOPHYSICAL RESEARCH LETTERS 47.5(2020). |
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