|
|||||
|
|
Connections Between the South Asian Summer Monsoon and the Tropical Sea Surface Temperature in CMIP5 |
|
| Authors: | LI Ruiqing LI Ruiqing L&#; Shihu HAN Bo and GAO Yanhong |
| Institution: | Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000;University of Chinese Academy of Sciences, Beijing 100049;Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000;Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000;Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000 |
| Abstract: | The South Asian summer monsoon (SASM) precipitation is analyzed based on reanalysis datasets and historical simulation results from 23 climate models of the Coupled Model Intercomparison Project phase 5 (CMIP5). The results show that most models reproduce well the climatological pattern of SASM precipita-tion, but the main rainfall period lags that of the reanalysis by one month. The relationship between the simulated SASM precipitation and sea surface temperature anomalies (SSTAs) is quite similar to the reanal-ysis data. This is attributed to the well-reproduced Walker cell anomaly in the tropical zone. It is projected that the negative correlation between SASM precipitation and SSTAs in the eastern equatorial Pacific will weaken and even reverse to a positive one in the period 2070-2096 under the representative concentration pathway (RCP) scenario with strong external forcing (RCP8.5), while the change of the correlation under moderate forcing (RCP4.5) still has great uncertainty. |
| Keywords: | CMIP5 multi-model ensemble mean South Asian summer monsoon (SASM) El Niñ o all-India monsoon rainfall index (AIMRI) |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《Acta Meteorologica Sinica》浏览原始摘要信息 | |
| 点击此处可从《Acta Meteorologica Sinica》下载免费的PDF全文 | |