气候变化领域集成服务门户(CCPortal): Global climatology of nocturnal low-level jets and associated moisture sources and sinks

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DOI	10.1016/j.atmosres.2019.06.016
	Global climatology of nocturnal low-level jets and associated moisture sources and sinks
	Algarra I.; Eiras-Barca J.; Nieto R.; Gimeno L.
发表日期	2019
ISSN	0169-8095
起始页码	39
结束页码	59
卷号	229
英文摘要	Low-level jets (LLJs) are defined as regions of anomalously high wind speeds occurring within the first kilometre of the troposphere. They are filamentous structures that are usually strongly related to moisture transport. This study analysed the moisture transport associated with LLJs, and the role of LLJs in precipitation events that occasionally lead to extreme precipitation and major floods. A daily climatology dataset of nocturnal LLJs was developed and moisture transport was studied by analysing the source and sink regions. A nocturnal LLJ index based on the vertical structure of temporal wind variations was applied, and a total of 33 nocturnal LLJs were identified and characterised. The FLEXPART Lagrangian model was then used to simulate jet behaviour and to identify major source and sink regions during the period from 1980 to 2016. Differences between days with LLJs and days with no LLJs were subsequently calculated for each LLJ on a global scale with respect to moisture transport for the sources and sinks of moisture. Finally, each LLJ was analysed in terms of its associated socioeconomic impact and relationship with water scarcity. © 2019
语种	英语
scopus关键词	Climatology; Lagrange multipliers; Precipitation (meteorology); Extreme precipitation; Global climatology; Lagrangian models; Moisture transport; Nocturnal low-level jets; Precipitation events; Socio-economic impacts; Vertical structures; Moisture; climatology; extreme event; flood; global climate; jet stream; moisture flux; precipitation (climatology)
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161988
作者单位	EPhysLab (Environmental Physics Laboratory), CIM-UVigo, Universidade de Vigo, Ourense, Spain; Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
推荐引用方式 GB/T 7714	Algarra I.,Eiras-Barca J.,Nieto R.,et al. Global climatology of nocturnal low-level jets and associated moisture sources and sinks[J],2019,229.
APA	Algarra I.,Eiras-Barca J.,Nieto R.,&Gimeno L..(2019).Global climatology of nocturnal low-level jets and associated moisture sources and sinks.Atmospheric Research,229.
MLA	Algarra I.,et al."Global climatology of nocturnal low-level jets and associated moisture sources and sinks".Atmospheric Research 229(2019).