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DOI | 10.1002/2017GL073331 |
Intraseasonal sea surface warming in the western Indian Ocean by oceanic equatorial Rossby waves | |
Rydbeck, Adam V.1; Jensen, Tommy G.2; Nyadjro, Ebenezer S.3 | |
2017-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A novel process is identified whereby equatorial Rossby (ER) waves maintain warm sea surface temperature (SST) anomalies against cooling by processes related to atmospheric convection in the western Indian Ocean. As downwelling ER waves enter the western Indian Ocean, SST anomalies of +0.15 degrees C develop near 60 degrees E. These SST anomalies are hypothesized to stimulate convective onset of the Madden-Julian Oscillation. The upper ocean warming that manifests in response to downwelling ER waves is examined in a mixed layer heat budget using observational and reanalysis products, respectively. In the heat budget, horizontal advection is the leading contributor to warming, in part due to an equatorial westward jet of 80cms(-1) associated with downwelling ER waves. When anomalous currents associated with ER waves are removed in the budget, the warm intraseasonal temperature anomaly in the western Indian Ocean is eliminated in observations and reduced by 55% in reanalysis. |
英文关键词 | Madden Julian Oscillation equatorial waves air sea interaction Indian Ocean equatorial Rossby waves equatorial jets |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402143700031 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; PACIFIC-OCEAN ; VARIABILITY ; DYNAMICS ; CURRENTS ; PREDICTABILITY ; MECHANISM ; SYSTEMS ; MODEL ; MJO |
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/26597 |
专题 | 气候变化 |
作者单位 | 1.Amer Soc Engn Educ, Washington, DC 20036 USA; 2.Stennis Space Ctr, Naval Res Lab, Ocean Dynam & Predict Branch, Hancock Cty, MS USA; 3.Univ New Orleans, Dept Phys, New Orleans, LA 70148 USA |
推荐引用方式 GB/T 7714 | Rydbeck, Adam V.,Jensen, Tommy G.,Nyadjro, Ebenezer S.. Intraseasonal sea surface warming in the western Indian Ocean by oceanic equatorial Rossby waves[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(9). |
APA | Rydbeck, Adam V.,Jensen, Tommy G.,&Nyadjro, Ebenezer S..(2017).Intraseasonal sea surface warming in the western Indian Ocean by oceanic equatorial Rossby waves.GEOPHYSICAL RESEARCH LETTERS,44(9). |
MLA | Rydbeck, Adam V.,et al."Intraseasonal sea surface warming in the western Indian Ocean by oceanic equatorial Rossby waves".GEOPHYSICAL RESEARCH LETTERS 44.9(2017). |
条目包含的文件 | 条目无相关文件。 |
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