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DOI | 10.1029/2018GL081132 |
Premonsoon/Postmonsoon Bay of Bengal Tropical Cyclones Intensity: Role of Air-Sea Coupling and Large-Scale Background State | |
Neetu, S.1; Lengaigne, M.2,3; Vialard, J.2; Samson, G.2,4; Masson, S.2; Krishnamohan, K. S.2; Suresh, I1 | |
2019-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:4页码:2149-2157 |
文章类型 | Article |
语种 | 英语 |
国家 | India; France |
英文摘要 | The densely populated Bay of Bengal (BoB) rim witnesses the deadliest tropical cyclones (TCs) globally, before and after the summer monsoon. Previous studies indicated that enhanced salinity and reduced thermal stratification reduce cooling under BoB TCs after the monsoon, suggesting that air-sea coupling may favor stronger TCs during that season. Using observations and simulations from a one fourth degree regional ocean-atmosphere model, we show that BoB TCs are stronger before the monsoon due to a more favorable large-scale background state (less vertical wind shear and higher sea surface temperature). Air-sea coupling however alleviates this background state influence, by reducing the number of premonsoon intense TCs, because of larger cooling and reduced upward enthalpy fluxes below TCs during that season. As the impact of air-sea interactions on BoB TCs is largest for intense TCs, it should be further investigated for Category 3 and above TCs, which are not reproduced at one fourth degree resolution. |
英文关键词 | tropical cyclones Bay of Bengal air-sea coupling cold wake coupled ocean-atmosphere model |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461855600028 |
WOS关键词 | STORM-SURGE ; PREDICTION SCHEME ; SUMMER MONSOON ; CLIMATE ; MODEL ; SIMULATION ; HURRICANES |
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/25813 |
专题 | 气候变化 |
作者单位 | 1.CSIR Natl Inst Oceanog, Panaji, India; 2.Univ Paris 06, Sorbonne Univ UPMC, LOCEAN IPSL, CNRS IRD MNHN, Paris, France; 3.NIO, IISc NIO IITM IRD Joint Int Lab, Indo French Cell Water Sci, Panaji, India; 4.Mercator Ocean, Ramonville St Agne, France |
推荐引用方式 GB/T 7714 | Neetu, S.,Lengaigne, M.,Vialard, J.,et al. Premonsoon/Postmonsoon Bay of Bengal Tropical Cyclones Intensity: Role of Air-Sea Coupling and Large-Scale Background State[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(4):2149-2157. |
APA | Neetu, S..,Lengaigne, M..,Vialard, J..,Samson, G..,Masson, S..,...&Suresh, I.(2019).Premonsoon/Postmonsoon Bay of Bengal Tropical Cyclones Intensity: Role of Air-Sea Coupling and Large-Scale Background State.GEOPHYSICAL RESEARCH LETTERS,46(4),2149-2157. |
MLA | Neetu, S.,et al."Premonsoon/Postmonsoon Bay of Bengal Tropical Cyclones Intensity: Role of Air-Sea Coupling and Large-Scale Background State".GEOPHYSICAL RESEARCH LETTERS 46.4(2019):2149-2157. |
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