globalchange  > 气候减缓与适应
DOI: 10.1002/joc.5515
论文题名:
Drought characteristics over China during 1980–2015
作者: Shao D.; Chen S.; Tan X.; Gu W.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期:9
起始页码: 3532
结束页码: 3545
语种: 英语
英文关键词: China ; drought characteristic ; observational data ; reanalysis data ; self-calibrating Palmer drought severity index
Scopus关键词: Clustering algorithms ; China ; Drought characteristics ; Observational data ; Reanalysis ; Self-calibrating Palmer drought severity indices ; Drought ; algorithm ; data set ; drought ; frequency analysis ; China ; Qinghai-Xizang Plateau
英文摘要: The self-calibrating Palmer drought severity index (scPDSI) was computed based on the four atmospheric reanalysis data sets combined with observational data over China during 1980–2015. The discrepancies of scPDSI among the four reanalysis data sets show the necessity of integrating multiple data sets. Drought characteristics, such as drought area, severity, duration, and frequency were examined based on multi-data set mean scPDSI. The results reveal that significant drying trends are found in Qinghai-Tibet Plateau, southwest, southeast and entire China. Drought area (drought severity) has increased (decreased) by about 1.16% (0.015%) per decade over entire China. Trends in drought duration, temporally averaged severity and frequency also indicate that droughts become more serious in each region during the past 36 years. The identification of drought events in each month by the clustering algorithm shows that droughts over China are more and more frequent. In addition, 65 separate drought events with the duration longer than 3 months were identified under the area threshold of 150,000 km2. Through severity-area-duration analysis, the 2005–2015 drought is found to be the prominent event. © 2018 Royal Meteorological Society
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116848
Appears in Collections:气候减缓与适应

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作者单位: State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China; Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada; Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou, China

Recommended Citation:
Shao D.,Chen S.,Tan X.,et al. Drought characteristics over China during 1980–2015[J]. International Journal of Climatology,2018-01-01,38(9)
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