气候变化领域集成服务门户(CCPortal): Inter-annual variability of moisture transport over the Northern Indian ocean and South Asian summer monsoon

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DOI	10.3354/cr01506
	Inter-annual variability of moisture transport over the Northern Indian ocean and South Asian summer monsoon
	Syed F.S.; Hannachi A.
发表日期	2018
ISSN	0936-577X
起始页码	23
结束页码	31
卷号	75 期号:1
英文摘要	We studied the inter-annual variability of the vertically integrated zonal/meridional moisture transport in the lower troposphere over the Northern Indian Ocean using observed data from 1971−2016 for the South Asian summer monsoon (SASM) season. The moisture transport variability was dominated by the zonal component associated with the Somali low level jet. For identification of the dominant modes of inter-annual variability, 3-dimensional empirical orthogonal function analysis was performed. The leading mode, associated with suppressed meridional moisture transport in both the Arabian Sea and Bay of Bengal and increased zonal moisture transport over the Bay of Bengal, was linked with the positive phase of the Indian Ocean dipole and El Niño conditions in the Pacific Ocean. The second leading mode was associated with the enhanced zonal moisture flow over the Arabian Sea extending up to the Bay of Bengal allied with the Somali low level jet, and enhanced Northeastward moisture transport over the whole region. This enhanced moisture flow results in stronger monsoon circulation and increased rainfall over South Asia. © Inter-Research 2018.
英文关键词	ENSO; Inter-annual variability; IOD; Moisture transport; Monsoon; South Asia
语种	英语
scopus关键词	air-sea interaction; annual variation; El Nino; empirical orthogonal function analysis; Indian Ocean Dipole; moisture; monsoon; rainfall; summer; troposphere; Arabian Sea; Bay of Bengal; Indian Ocean; Indian Ocean (North); Pacific Ocean; South Asia
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146980
作者单位	Directorate General of Climate Services, General Authority of Meteorology and Environmental Protection (GAMEP), Jeddah, 21577, Saudi Arabia; Institute of Meteorology and Geophysics (IMG), Pakistan Meteorological Department, Karachi, 75270, Pakistan; Department of Meteorology, Stockholm University, Stockholm, 10691, Sweden
推荐引用方式 GB/T 7714	Syed F.S.,Hannachi A.. Inter-annual variability of moisture transport over the Northern Indian ocean and South Asian summer monsoon[J],2018,75(1).
APA	Syed F.S.,&Hannachi A..(2018).Inter-annual variability of moisture transport over the Northern Indian ocean and South Asian summer monsoon.Climate Research,75(1).
MLA	Syed F.S.,et al."Inter-annual variability of moisture transport over the Northern Indian ocean and South Asian summer monsoon".Climate Research 75.1(2018).