气候变化领域集成服务门户(CCPortal): Daily atmospheric circulation patterns for Catalonia (northeast Iberian Peninsula) using a modified version of Jenkinson and Collison method

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DOI	10.1016/j.atmosres.2019.104674
	Daily atmospheric circulation patterns for Catalonia (northeast Iberian Peninsula) using a modified version of Jenkinson and Collison method
	Miró alone J.R.; Pepin N.; Peña J.C.; Martin-Vide J.
发表日期	2020
ISSN	0169-8095
卷号	231
英文摘要	The Western Mediterranean, in common with other subtropical regions, has certain characteristics that make a purely surface-based synoptic classification inadequate. Sometimes, despite the surface synoptic situation not being conducive to precipitation, a depression aloft can trigger convection and produce strong rains and flash floods. To account for this, we develop a new synoptic classification centred on Catalonia (north-east of the Iberian Peninsula) which combines upper air and surface pressure situations. The existing Jenkinson-Collison classification of the surface pressure field is combined with a new simplified upper air classification based on 500 hPa geopotential height. Despite a reduced number of types at 500 hPa, the combination of both surface and 500 hPa gives many potential combinations. A reduction in the overall number was achieved by adjusting the combined classification to replicate the manual classification of Martin-Vide. The final classification is reduced to 13 synoptic patterns each of which provides a clear and well-defined daily synoptic situation. It is used to characterize days with/without cold air pool (CAP) events, derived from a network of 50 temperature sensors distributed across Cerdanya in Eastern Pyrenees. We show our new classification to be better at discriminating strong CAP days from no-CAP days than classifications based on surface pressure alone. Thus there is potential for the classification to be used by forecasters as a first step for predicting temperature inversions and weather in the Eastern Pyrenees. © 2019 Elsevier B.V.
英文关键词	Cold Air Pool; Iberian Peninsula; synoptic classification; Synoptic Meteorology
学科领域	Earth atmosphere; Meteorology; Atmospheric circulation patterns; Cold air pools; Iberian Peninsula; Manual classification; Surface pressure field; Synoptic classification; Synoptic meteorology; Temperature inversions; Climatology; atmospheric circulation; classification; cold air; pressure field; surface pressure; synoptic meteorology; Catalonia; Cerdanya; Iberian Peninsula; Pyrenees; Spain
语种	英语
scopus关键词	Earth atmosphere; Meteorology; Atmospheric circulation patterns; Cold air pools; Iberian Peninsula; Manual classification; Surface pressure field; Synoptic classification; Synoptic meteorology; Temperature inversions; Climatology; atmospheric circulation; classification; cold air; pressure field; surface pressure; synoptic meteorology; Catalonia; Cerdanya; Iberian Peninsula; Pyrenees; Spain
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/120614
作者单位	Meteorological Service of Catalonia, Barcelona, Spain; University of Portsmouth, Portsmouth, United Kingdom; University of Barcelona, Barcelona, Spain
推荐引用方式 GB/T 7714	Miró alone J.R.,Pepin N.,Peña J.C.,et al. Daily atmospheric circulation patterns for Catalonia (northeast Iberian Peninsula) using a modified version of Jenkinson and Collison method[J],2020,231.
APA	Miró alone J.R.,Pepin N.,Peña J.C.,&Martin-Vide J..(2020).Daily atmospheric circulation patterns for Catalonia (northeast Iberian Peninsula) using a modified version of Jenkinson and Collison method.Atmospheric Research,231.
MLA	Miró alone J.R.,et al."Daily atmospheric circulation patterns for Catalonia (northeast Iberian Peninsula) using a modified version of Jenkinson and Collison method".Atmospheric Research 231(2020).