气候变化领域集成服务门户(CCPortal): Identification of major moisture sources across the Mediterranean Basin

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DOI	10.1007/s00382-020-05224-3
	Identification of major moisture sources across the Mediterranean Basin
	Batibeniz F.; Ashfaq M.; Önol B.; Turuncoglu U.U.; Mehmood S.; Evans K.J.
发表日期	2020
ISSN	0930-7575
起始页码	4109
结束页码	4127
卷号	54
英文摘要	We employ a Lagrangian based moisture back trajectory method on an ensemble of four reanalysis datasets to provide a comprehensive understanding of moisture sources over the Mediterranean land region (30° N–49.5° N and 9.75° W–61.5° E) at seasonal timescales for 1980–2013 period. Using a source region between 10° S–71.35° N along the latitude and 80° W–84.88° E along the longitude that is subdivided into ten complimentary sub-regions, our analyses is able to backtrack up to > 90% of seasonal precipitation at each grid point within the target region. Our results indicate a significant role of moisture advected from the North Atlantic and Mediterranean Sea, and locally recycled moisture over the target region in shaping the spatial organization of seasonal precipitation. However, a clear east–west contrast is witnessed in determining the relative importance of each of these major moisture sources where the North Atlantic dictates the moisture supply over the western Mediterranean while moisture from Mediterranean Sea and local recycling play a key role over the eastern Mediterranean. Our analyses also demonstrate a major footprint of the North Atlantic Oscillation (NAO) on precipitation variability over the Mediterranean land as dynamic and thermodynamic anomalies during the negative phase of NAO match with those during wet years and vice versa. The findings reported here are generally consistent across the four reanalysis datasets. Overall, this study establishes the relative roles of adjacent and far-off oceanic and terrestrial evaporative sources over the Mediterranean land and should help in understanding the drivers of precipitation variability and change at varying timescales. © 2020, The Author(s).
语种	英语
scopus关键词	atmospheric dynamics; data set; identification method; moisture content; North Atlantic Oscillation; point source; precipitation (climatology); rainfall; seasonal variation; thermodynamics; timescale; Atlantic Ocean; Atlantic Ocean (North); Mediterranean Region
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145483
作者单位	Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Aeronautics and Astronautics Faculty, Meteorological Engineering, Istanbul Technical University, Istanbul, Turkey; Research Center for Environmental Changes (RCEC), Taiwan International Graduate Program (TIGP) Academia Sinica, Taipei, Taiwan; National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Batibeniz F.,Ashfaq M.,Önol B.,et al. Identification of major moisture sources across the Mediterranean Basin[J],2020,54.
APA	Batibeniz F.,Ashfaq M.,Önol B.,Turuncoglu U.U.,Mehmood S.,&Evans K.J..(2020).Identification of major moisture sources across the Mediterranean Basin.Climate Dynamics,54.
MLA	Batibeniz F.,et al."Identification of major moisture sources across the Mediterranean Basin".Climate Dynamics 54(2020).