气候变化领域集成服务门户(CCPortal): Relationship between projected changes in precipitation and fronts in the austral winter of the Southern Hemisphere from a suite of CMIP5 models

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DOI	10.1007/s00382-018-4482-y
	Relationship between projected changes in precipitation and fronts in the austral winter of the Southern Hemisphere from a suite of CMIP5 models
	Blázquez J.; Solman S.A.
发表日期	2019
ISSN	0930-7575
起始页码	5849
结束页码	5860
卷号	52 期号:2020-09-10
英文摘要	A group of eight CMIP5 models are used to evaluate how much of the future changes in winter precipitation can be explained by changes in frontal activity over the Southern Hemisphere (SH). The frontal activity is calculated at the 850 hPa level using the cyclonic vorticity, the horizontal gradient of temperature and the specific humidity. The changes are evaluated taking into account the historical and the RCP45 experiments. Changes in frontal activity are positive over most of the SH, being the areas with the largest increases over the mid to high latitudes. Most of these changes are driven especially by the changes in the specific humidity. The precipitation change shows a decrease at subtropical latitudes, mostly associated with a decrease in non frontal precipitation, controlled by a decrease in relative humidity and in moisture flux convergence. At mid to higher latitudes, the precipitation responds to increases in both frontal and non frontal precipitation, associated with increasing frontal activity and relative humidity and increases in the moisture flux convergence at the lower levels of the atmosphere, respectively. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	CMIP5 models; Fronts; Precipitation; Southern Hemisphere; Wintertime
语种	英语
scopus关键词	air temperature; atmospheric front; atmospheric moisture; climate change; climate modeling; CMIP; precipitation (climatology); relative humidity; Southern Hemisphere; vorticity; winter
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/146335
作者单位	Centro de Investigaciones del Mar y la Atmósfera (CIMA-CONICET/FCEN-UBA), Instituto Franco Argentino del Clima y sus Impactos (UMI IFAECI/CNRS), Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata. (FCAG/UNLP), Ciudad Universitaria Pabellón II Piso 2, Buenos Aires, C1428EGA, Argentina; Departamento de Ciencias de la Atmósfera y los Océanos (FCEN-UBA), Centro de Investigaciones del Mar y la Atmósfera (CIMA-CONICET/FCEN-UBA), Instituto Franco Argentino del Clima y sus Impactos (UMI IFAECI/CNRS), Ciudad Universitaria Pabellón II Piso 2, Buenos Aires, C1428EGA, Argentina
推荐引用方式 GB/T 7714	Blázquez J.,Solman S.A.. Relationship between projected changes in precipitation and fronts in the austral winter of the Southern Hemisphere from a suite of CMIP5 models[J],2019,52(2020-09-10).
APA	Blázquez J.,&Solman S.A..(2019).Relationship between projected changes in precipitation and fronts in the austral winter of the Southern Hemisphere from a suite of CMIP5 models.Climate Dynamics,52(2020-09-10).
MLA	Blázquez J.,et al."Relationship between projected changes in precipitation and fronts in the austral winter of the Southern Hemisphere from a suite of CMIP5 models".Climate Dynamics 52.2020-09-10(2019).