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DOI | 10.1175/JCLI-D-16-0156.1 |
Role of Oceanic and Land Moisture Sources and Transport in the Seasonal and Interannual Variability of Summer Monsoon in India | |
Pathak, Amey1; Ghosh, Subimal1,2; Martinez, J. Alejandro3; Dominguez, Francina4; Kumar, Praveen5 | |
2017-03-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | India; Colombia; USA |
英文摘要 | Three key issues of moisture supply and Indian summer monsoon rainfall (ISMR) variability are discussed in the present work: identification of the oceanic and terrestrial sources of moisture; the extent to which each source affects the ISMR; and their individual contributions to the interannual variability of ISMR. The modified Dynamic Recycling Model, based on a Lagrangian trajectory approach, is used to estimate the relative contributions from 27 terrestrial and oceanic moisture source regions to the monsoon during 19792013. ERA- Interim data are used for the study. The results show that the ISMR is strongly influenced by the land- ocean- atmosphere interactions, and a significant fraction of atmospheric moisture to the ISMR comes from five main moisture sources: the western Indian Ocean (WIO), central Indian Ocean (CIO), upper Indian Ocean (UIO), Ganges basin (GB), and Red Sea and the neighboring gulf (RDG). The moisture flux from WIO is very high during the initial period of monsoon seasons. From the mid- monsoon season, the contribution from this moisture source decays and land sources through evapotranspiration (ET) become more active. Early decay of moisture contributions from the WIO and the GB is observed during weak monsoon years. El Nino years are associated with low contributions of moisture from all sources, whereas warm Indian Ocean years are associated with low moisture flux from the major sources except WIO. ISMR is characterized by the prolonged and increasing moisture supply from WIO during the first half of the monsoon along with contributions from GB during the end of season. The results are consistent across several reanalyses (CFSR, ERA-Interim, and MERRA). |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395539100018 |
WOS关键词 | WATER-VAPOR ; ARABIAN SEA ; HYDROLOGIC-CYCLE ; STABLE-ISOTOPES ; PART I ; RAINFALL ; PRECIPITATION ; IMPACT ; BUDGET ; GCM |
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/20273 |
专题 | 气候变化 |
作者单位 | 1.Indian Inst Technol, Dept Civil Engn, Bombay, Maharashtra, India; 2.Indian Inst Technol, Interdisciplinary Program Climate Studies, Bombay, Maharashtra, India; 3.Univ Antioquia, Inst Phys, Medellin, Colombia; 4.Univ Illinois, Dept Atmospher Sci, Urbana, IL USA; 5.Univ Illinois, Civil & Environm Engn, Urbana, IL USA |
推荐引用方式 GB/T 7714 | Pathak, Amey,Ghosh, Subimal,Martinez, J. Alejandro,et al. Role of Oceanic and Land Moisture Sources and Transport in the Seasonal and Interannual Variability of Summer Monsoon in India[J]. JOURNAL OF CLIMATE,2017,30(5). |
APA | Pathak, Amey,Ghosh, Subimal,Martinez, J. Alejandro,Dominguez, Francina,&Kumar, Praveen.(2017).Role of Oceanic and Land Moisture Sources and Transport in the Seasonal and Interannual Variability of Summer Monsoon in India.JOURNAL OF CLIMATE,30(5). |
MLA | Pathak, Amey,et al."Role of Oceanic and Land Moisture Sources and Transport in the Seasonal and Interannual Variability of Summer Monsoon in India".JOURNAL OF CLIMATE 30.5(2017). |
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