globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosres.2019.02.008
Scopus记录号: 2-s2.0-85062148592
论文题名:
Spatial and temporal variations of precipitation concentration and their relationships with large-scale atmospheric circulations across Northeast China
作者: Wang R.; Zhang J.; Guo E.; Zhao C.; Cao T.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 222
起始页码: 62
结束页码: 73
语种: 英语
英文关键词: Concentration index ; Correlation ; Large-scale atmosphere circulation ; Northeast China ; Spatial–temporal patterns
Scopus关键词: Atmospheric pressure ; Correlation methods ; Concentration indices ; East Asian summer monsoon ; North Atlantic oscillations ; Northeast China ; Pacific decadal oscillation ; Southern oscillation index ; Spatial and temporal variation ; Temporal pattern ; Climatology
英文摘要: Understanding the trends of precipitation concentration play a key role in watershed development and management. In this study, spatiotemporal and abrupt changes in the concentration index (CI) and their relationships with summer large-scale atmospheric circulations over Northeast China (NEC) were discovered. We used daily precipitation data from 71 meteorological stations and five large-scale atmosphere circulation indices for the period 1961–2016 across NEC. The results show that annual daily precipitation concentration in NEC decreased slightly in most areas. The spatial distribution of the CI ranges from 0.64 to 0.7 and the regions of the highest value were in Liaoning Province. The correlation between CI and different large-scale atmospheric indices show significant differences and mainly depend on the regional differences. Pacific Decadal Oscillation (PDO) and North Atlantic Oscillation (NAO) are negatively correlated with the CI in most regions of NEC, in contrast to the East Asian summer monsoon index (EASMI) and Multivariate ENSO Index (MEI). The Southern Oscillation Index (SOI) is negatively correlated with the CI in Liaoning Province and positivity correlated with the CI in Jilin and most of Heilongjiang Province. Compared to before 1975, a Eurasian continent anticyclonic circulation anomaly caused more clear days and higher solar radiation during 1976–2016. © 2019 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122278
Appears in Collections:气候变化事实与影响

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作者单位: School of Environment, Northeast Normal University, No.2555 Jingyue Street, Nanguan, Changchun 130117, China; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, No.2555 Jingyue Street, Nanguan, Changchun 130117, China; Key Laboratory for Vegetation Ecology, Ministry of Education, No.2555 Jingyue Street, Nanguan, Changchun 130117, China; College of Geographical Science, Inner Mongolia Normal University, No.81 Zhaowuda, Saihan, Hohhot 010022, China; Inner Mongolia Key Laboratory of Disaster and Ecological Security on the Mongolian Plateau, Inner Mongolia Normal University, No.81 Zhaowuda, Saihan, Hohhot 010022, China; Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, No.81 Zhaowuda, Saihan, Hohhot 010022, China; School of Horticulture, Jilin Agricultural University, No.2888 Xincheng Street, Nanguan, Changchun 130117, China; Institute of Agricultural Resources and Environment, Jilin Academy of Agricultural Sciences, No.1365 Shengtai Street, Jingyue Economic and Development Zone, Changchun, 130117, China

Recommended Citation:
Wang R.,Zhang J.,Guo E.,et al. Spatial and temporal variations of precipitation concentration and their relationships with large-scale atmospheric circulations across Northeast China[J]. Atmospheric Research,2019-01-01,222
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