Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0415.1 |
Storm Track Response to Oceanic Eddies in Idealized Atmospheric Simulations | |
Foussard, A.1,2; Lapeyre, G.1; Plougonven, R.1 | |
2019 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:2页码:445-463 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | Large-scale oceanic fronts, such as in western boundary currents, have been shown to play an important role in the dynamics of atmospheric storm tracks. Little is known about the influence of mesoscale oceanic eddies on the free troposphere, although their imprint on the atmospheric boundary layer is well documented. The present study investigates the response of the tropospheric storm track to the presence of sea surface temperature (SST) anomalies associated with an eddying ocean. Idealized experiments are carried out in a configuration of a zonally reentrant channel representing the midlatitudes. The SST field is composed of a large-scale zonally symmetric front to which are added mesoscale eddies localized close to the front. Numerical simulations show a robust signal of a poleward shift of the storm track and of the tropospheric eddy-driven jet when oceanic eddies are taken into account. This is accompanied by more intense air-sea fluxes and convective heating above oceanic eddies. Also, a mean heating of the troposphere occurs poleward of the oceanic eddying region, within the storm track. A heat budget analysis shows that it is caused by a stronger diabatic heating within storms associated with more water advected poleward. This additional heating affects the baroclinicity of the flow, which pushes the jet and the storm track poleward. |
英文关键词 | Atmosphere-ocean interaction Dynamics Storm tracks |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000454292200001 |
WOS关键词 | EDDY-DRIVEN JET ; SST ANOMALIES ; GULF-STREAM ; KUROSHIO ; VARIABILITY ; FRONT ; CIRCULATION ; SENSITIVITY ; STABILITY ; DYNAMICS |
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/20345 |
专题 | 气候变化 |
作者单位 | 1.Sorbonne Univ, Ecole Normale Super, Ecole Polytech, LMD IPSL,CNRS, Paris, France; 2.Ecole Ponts ParisTech, Champs Sur Marne, France |
推荐引用方式 GB/T 7714 | Foussard, A.,Lapeyre, G.,Plougonven, R.. Storm Track Response to Oceanic Eddies in Idealized Atmospheric Simulations[J]. JOURNAL OF CLIMATE,2019,32(2):445-463. |
APA | Foussard, A.,Lapeyre, G.,&Plougonven, R..(2019).Storm Track Response to Oceanic Eddies in Idealized Atmospheric Simulations.JOURNAL OF CLIMATE,32(2),445-463. |
MLA | Foussard, A.,et al."Storm Track Response to Oceanic Eddies in Idealized Atmospheric Simulations".JOURNAL OF CLIMATE 32.2(2019):445-463. |
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