Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May

Abstract This research describes a link between winter–springtime snow cover anomalies in central Europe and precipitation over the low‐latitude highlands of China (LLHC). Excessive snow cover over Europe and East Asia alters the meridional temperature gradient, which induces zonal wind anomalies at...

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Autores principales:	Anqi Ma, Jinchuan Zhao, Lei Cai, Zeyu Dong, Ruowen Yang
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	low‐latitude highlands of China precipitation snow cover Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/aa151ac0fe964679866260b3da2b8485
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spelling	oai:doaj.org-article:aa151ac0fe964679866260b3da2b84852021-12-01T20:00:12ZPotential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May1530-261X10.1002/asl.1063https://doaj.org/article/aa151ac0fe964679866260b3da2b84852021-12-01T00:00:00Zhttps://doi.org/10.1002/asl.1063https://doaj.org/toc/1530-261XAbstract This research describes a link between winter–springtime snow cover anomalies in central Europe and precipitation over the low‐latitude highlands of China (LLHC). Excessive snow cover over Europe and East Asia alters the meridional temperature gradient, which induces zonal wind anomalies at the 500 hPa level that impact the strength and position of subtropical streams. These anomalies persist until spring and result in a distinctive paired cyclonic–anticyclonic circulation pattern. Over Mongolia, the imposition of cyclonic circulation weakens the Mongolia High and reduces the potential southward flow of cold air that normally affects the LLHC during spring. Concurrently, the development of anticyclonic conditions over the LLHC weakens springtime precipitation in this area. This paired circulation system is verified by the linear baroclinic model, which also confirms that the observed linkage between snow cover and precipitation is not modulated by the El Niño–Southern Oscillation. This analysis affords new insight into the effects of snow cover on the subtropical stream and atmospheric circulations downwind.Anqi MaJinchuan ZhaoLei CaiZeyu DongRuowen YangWileyarticlelow‐latitude highlands of Chinaprecipitationsnow coverMeteorology. ClimatologyQC851-999ENAtmospheric Science Letters, Vol 22, Iss 12, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	low‐latitude highlands of China precipitation snow cover Meteorology. Climatology QC851-999
spellingShingle	low‐latitude highlands of China precipitation snow cover Meteorology. Climatology QC851-999 Anqi Ma Jinchuan Zhao Lei Cai Zeyu Dong Ruowen Yang Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
description	Abstract This research describes a link between winter–springtime snow cover anomalies in central Europe and precipitation over the low‐latitude highlands of China (LLHC). Excessive snow cover over Europe and East Asia alters the meridional temperature gradient, which induces zonal wind anomalies at the 500 hPa level that impact the strength and position of subtropical streams. These anomalies persist until spring and result in a distinctive paired cyclonic–anticyclonic circulation pattern. Over Mongolia, the imposition of cyclonic circulation weakens the Mongolia High and reduces the potential southward flow of cold air that normally affects the LLHC during spring. Concurrently, the development of anticyclonic conditions over the LLHC weakens springtime precipitation in this area. This paired circulation system is verified by the linear baroclinic model, which also confirms that the observed linkage between snow cover and precipitation is not modulated by the El Niño–Southern Oscillation. This analysis affords new insight into the effects of snow cover on the subtropical stream and atmospheric circulations downwind.
format	article
author	Anqi Ma Jinchuan Zhao Lei Cai Zeyu Dong Ruowen Yang
author_facet	Anqi Ma Jinchuan Zhao Lei Cai Zeyu Dong Ruowen Yang
author_sort	Anqi Ma
title	Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
title_short	Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
title_full	Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
title_fullStr	Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
title_full_unstemmed	Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May
title_sort	potential links between wintertime snow cover in central europe and precipitation over the low‐latitude highlands of china in may
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/aa151ac0fe964679866260b3da2b8485
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Potential links between wintertime snow cover in central Europe and precipitation over the low‐latitude highlands of China in May

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