Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0814.1 |
Effect of Indian Ocean SST on Tibetan Plateau Precipitation in the Early Rainy Season | |
Chen, Xiaoyang1; You, Qinglong1,2 | |
2017-11-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The onset of the South Asian summer monsoon (SASM) indicates the beginning of the rainy season in the South Asia region. It is not only critical for the local agriculture and animal husbandry but also important for water and life security. Precipitation in the early rainy season (May) increases rapidly and has a large interannual variability, especially in the Tibetan Plateau (TP) region. One of the starting mechanisms of the monsoon system is the land-sea thermal contrast (LSTC) between the Indian Ocean (IO) and South Asia region. Therefore, the IO can be considered as a crucial factor for the intensity of the monsoon system, as well as the TP precipitation. In this study, the relationships between IO sea surface temperature (SST) and TP precipitation on the interannual time scale are investigated. Correlation maps show that IO SST variability contains a portion that is independent from the tropical Pacific Ocean SST and is negatively correlated with the TP precipitation. Here the authors define an LSTC index to determine the thermal condition over the IO and South Asia region. The SASM reveals an out-of-phase relationship with LSTC between land and ocean, which means it would be suppressed by the enhanced LSTC. The daily data are used to further analyze the relationship between the SASM and TP precipitation in detail. Results show that the anomalous TP precipitation in May is mainly caused by the Bay of Bengal monsoon and that the Indian monsoon is responsible for the TP precipitation in June. More specifically, warmer SST enlarges the LSTC between the IO and South Asia region. The SASM is weaker than the mean state, resulting in less precipitation over the TP. In negative years the opposite occurs. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416488200007 |
WOS关键词 | ASIAN SUMMER MONSOON ; INTERANNUAL VARIABILITY ; TEMPERATURE ; OSCILLATIONS ; CLIMATE ; IMPACT ; ONSET ; HEAT ; ENSO |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/20680 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster,Earth Syst Modeling Ctr, Minist Educ,Joint Int Res Lab Climate & Environm, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 2.Chinese Acad Sci, State Key Lab Atmospher Sci & Geophys Fluid Dynam, Inst Atmospher Phys, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Xiaoyang,You, Qinglong. Effect of Indian Ocean SST on Tibetan Plateau Precipitation in the Early Rainy Season[J]. JOURNAL OF CLIMATE,2017,30(22). |
APA | Chen, Xiaoyang,&You, Qinglong.(2017).Effect of Indian Ocean SST on Tibetan Plateau Precipitation in the Early Rainy Season.JOURNAL OF CLIMATE,30(22). |
MLA | Chen, Xiaoyang,et al."Effect of Indian Ocean SST on Tibetan Plateau Precipitation in the Early Rainy Season".JOURNAL OF CLIMATE 30.22(2017). |
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