Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL096541 |
On the all-India rainfall index and sub-India rainfall heterogeneity | |
Spencer A. Hill; Adam H. Sobel; Michela Biasutti; Mark A. Cane | |
2022-01-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | We revisit longstanding controversies regarding summer-mean relationships among the all-India rainfall index (AIRI), sub-India rainfall, El Niño-Southern Oscillation (ENSO), and the Indian Ocean Dipole (IOD) using 120-year sea surface temperature and high-resolution rainfall datasets. AIRI closely tracks with the spatial extent of wet anomalies and with the average across gridpoints in rainy day count. The leading rainfall variability mode is a monopole associated primarily with rainy day count and ENSO. The second mode is a tripole with same-signed loadings in the high-rainfall Western Ghats and Central Monsoon Zone regions and opposite-signed loadings in Southeastern India between. The IOD projects onto this tripole and, as such, is weakly correlated with AIRI. However, when the linear influence of ENSO is removed, the IOD rainfall regressions become quasi-homogeneously more positive, making the ENSO-residual IOD and AIRI timeseries significantly correlated. |
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/345144 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Spencer A. Hill,Adam H. Sobel,Michela Biasutti,et al. On the all-India rainfall index and sub-India rainfall heterogeneity[J]. Geophysical Research Letters,2022. |
APA | Spencer A. Hill,Adam H. Sobel,Michela Biasutti,&Mark A. Cane.(2022).On the all-India rainfall index and sub-India rainfall heterogeneity.Geophysical Research Letters. |
MLA | Spencer A. Hill,et al."On the all-India rainfall index and sub-India rainfall heterogeneity".Geophysical Research Letters (2022). |
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