Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089308 |
Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season | |
Muhammad Adnan Abid; Moetasim Ashfaq; Fred Kucharski; Katherine J. Evans; Mansour Almazroui | |
2020-09-14 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | El Niño‐Southern Oscillation (ENSO) modulates wet season (November–April) precipitation over Central Southwest Asia (CSWA), however, intra‐seasonal characteristics of its influence are largely unknown, which can be important for its sub‐seasonal to seasonal hydroclimate predictability. Here we show that the ENSO‐CSWA teleconnection varies intra‐seasonally and is a combination of direct and indirect positive influences. The direct influence is through a Rossby wave‐like pattern in the tail months. The indirect influence is through an atmospheric dipole of diabatic heating anomalies in the tropical Indian Ocean (TIO) as a result of ENSO‐forced response, which also generates a Rossby wave‐like forcing and persists throughout the wet season. ENSO exerts its strongest influence when both direct and indirect modes are in phase, while the relationship breaks down when the two modes are out of phase. The atmospheric teleconnection through the atmospheric diabatic heating anomalies in the TIO is reproducible in numerical simulations. |
领域 | 气候变化 |
URL | 查看原文 |
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/295282 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Muhammad Adnan Abid,Moetasim Ashfaq,Fred Kucharski,et al. Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season[J]. Geophysical Research Letters,2020. |
APA | Muhammad Adnan Abid,Moetasim Ashfaq,Fred Kucharski,Katherine J. Evans,&Mansour Almazroui.(2020).Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season.Geophysical Research Letters. |
MLA | Muhammad Adnan Abid,et al."Tropical Indian Ocean Mediates ENSO Influence Over Central Southwest Asia During the Wet Season".Geophysical Research Letters (2020). |
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