气候变化领域集成服务门户(CCPortal): Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades

CCPortal

DOI	10.1088/1748-9326/aafb82
	Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades
	Chernokulsky A.; Kozlov F.; Zolina O.; Bulygina O.; Mokhov I.I.; Semenov V.A.
发表日期	2019
ISSN	17489318
卷号	14 期号:4
英文摘要	Long-term changes in convective and stratiform precipitation in Northern Eurasia (NE) over the last five decades are estimated. Different types of precipitation are separated according to their genesis using routine meteorological observations of precipitation, weather conditions, and morphological cloud types for the period 1966-2016. From an initial 538 stations, the main analysis is performed for 326 stations that have no gaps and meet criteria regarding the artificial discontinuity absence in the data. A moderate increase in total precipitation over the analyzed period is accompanied by a relatively strong growth of convective precipitation and a concurrent decrease in stratiform precipitation. Convective and stratiform precipitation totals, precipitation intensity and heavy precipitation sums depict major changes in summer, while the relative contribution of the two precipitation types to the total precipitation (including the contribution of heavy rain events) show the strongest trends in transition seasons. The contribution of heavy convective showers to the total precipitation increases with the statistically significant trend of 1%-2% per decade in vast NE regions, reaching 5% per decade at a number of stations. The largest increase is found over the southern Far East region, mostly because of positive changes in convective precipitation intensity with a linear trend of more than 1 mm/day/decade, implying a 13.8% increase per 1 °C warming. In general, stratiform precipitation decreases over the majority of NE regions in all seasons except for winter. This decrease happens at slower rates in comparison to the convective precipitation changes. The overall changes in the character of precipitation over the majority of NE regions are characterized by a redistribution of precipitation types toward more heavy showers. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	convective showers; precipitation extremes; precipitation types; regional climate changes; stratiform precipitation; surface observation
语种	英语
scopus关键词	Climate change; convective showers; Precipitation extremes; Regional climate changes; Stratiform precipitation; Surface observation; Rain; climate change; climate conditions; convective system; decadal variation; observational method; precipitation (climatology); precipitation intensity; stratification; Eurasia; Far East
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154660
作者单位	A.M. Obukhov Institute of Atmospheric Physics Russian Academy of Sciences, Moscow, Russian Federation; Lomonosov Moscow State University, Moscow, Russian Federation; L'Institut des Géosciences de l'Environnement, Grenoble, France; P.P. Shirshov Institute of Oceanology Russian Academy of Sciences, Moscow, Russian Federation; All-Russian Research Institute of Hydrometeorological Information-World Data Center, Obninsk, Russian Federation; Institute of Geography, Russian Academy of Sciences, Moscow, Russian Federation
推荐引用方式 GB/T 7714	Chernokulsky A.,Kozlov F.,Zolina O.,et al. Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades[J],2019,14(4).
APA	Chernokulsky A.,Kozlov F.,Zolina O.,Bulygina O.,Mokhov I.I.,&Semenov V.A..(2019).Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades.Environmental Research Letters,14(4).
MLA	Chernokulsky A.,et al."Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades".Environmental Research Letters 14.4(2019).