globalchange  > 气候变化事实与影响
DOI: 10.1088/1748-9326/aafb82
WOS记录号: WOS:000461959600001
论文题名:
Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades
作者: Chernokulsky, Alexander1; Kozlov, Fedor1,2; Zolina, Olga3,4; Bulygina, Olga5; Mokhov, Igor I.1,2; Semenov, Vladimir A.1,6
通讯作者: Chernokulsky, Alexander
刊名: ENVIRONMENTAL RESEARCH LETTERS
ISSN: 1748-9326
出版年: 2019
卷: 14, 期:4
语种: 英语
英文关键词: precipitation extremes ; convective showers ; precipitation types ; stratiform precipitation ; regional climate changes ; surface observation
WOS关键词: EXTREME PRECIPITATION ; ERA-INTERIM ; HEAVY PRECIPITATION ; TRENDS ; REANALYSIS ; WEATHER ; REGIONS ; EUROPE ; WET ; TEMPERATURE
WOS学科分类: Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向: Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
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 degrees 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.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/132915
Appears in Collections:气候变化事实与影响

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作者单位: 1.Russian Acad Sci, AM Obukhov Inst Atmospher Phys, Moscow, Russia
2.Lomonosov Moscow State Univ, Moscow, Russia
3.Inst Geosci Environm, Grenoble, France
4.Russian Acad Sci, PP Shirshov Inst Oceanol, Moscow, Russia
5.All Russian Res Inst Hydrometeorol Informat, World Data Ctr, Obninsk, Russia
6.Russian Acad Sci, Inst Geog, Moscow, Russia

Recommended Citation:
Chernokulsky, Alexander,Kozlov, Fedor,Zolina, Olga,et al. Observed changes in convective and stratiform precipitation in Northern Eurasia over the last five decades[J]. ENVIRONMENTAL RESEARCH LETTERS,2019-01-01,14(4)
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