DOI: 10.1002/2014JD022456
论文题名: Changes of summer precipitation in China: The dominance of frequency and intensity and linkage with changes in moisture and air temperature
作者: Lu E. ; Zeng Y. ; Luo Y. ; Ding Y. ; Zhao W. ; Liu S. ; Gong L. ; Jiang Y. ; Jiang Z. ; Chen H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 2169897X
出版年: 2014
卷: 119, 期: 22 起始页码: 12575
结束页码: 12587
语种: 英语
英文关键词: dominance and relative importance
; frequency and intensity
; moisture and air temperature
; rainfall total and extreme precipitation
; variability and change
Scopus关键词: air temperature
; climate change
; climate modeling
; precipitation (climatology)
; precipitation intensity
; spatiotemporal analysis
; summer
; China
英文摘要: Using observed precipitation and the National Centers for Environmental Prediction-National Center for Atmospheric Research reanalysis, the changes in the metrics of the summer precipitation in China, the dominance of frequency and intensity of daily extreme precipitation, and the linkage with changes in moisture and air temperature are explored. Results show that over the recent 50 years, the total summer rainfall increased over the southeast and the west and decreased over the northeast. The changes in the frequency, identified with the 95% threshold and Poisson regression, and rainfall extremes show similar spatial patterns. The relative importance of the changes in frequency and intensity in the variability and changes in extreme precipitation are estimated. It is shown that, while the interannual variability of the rainfall amount is dominated by the frequency change in almost all stations, the long-term change of rainfall amount can be dominated by both frequency and intensity, depending on the station. The change in the rainfall total is linked to changes in atmospheric moisture and temperature. The results show that the variability and change of the rainfall total can be dominated by changes in both moisture and air temperature, and the relative importance depends on the region. ©2014. American Geophysical Union. All Rights Reserved. 资助项目: 41230422
; 41230528
; 41275092
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63016
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China; NOAA Climate Prediction Center, College Park, MD, United States; State Key Laboratory of Severe Weather, CAMS/CMA, Beijing, China
Recommended Citation:
Lu E.,Zeng Y.,Luo Y.,et al. Changes of summer precipitation in China: The dominance of frequency and intensity and linkage with changes in moisture and air temperature[J]. Journal of Geophysical Research Atmospheres,2014-01-01,119(22)