DOI: 10.1038/ngeo1744
论文题名: Increase in the range between wet and dry season precipitation
作者: Chou C. ; Chiang J.C.H. ; Lan C.-W. ; Chung C.-H. ; Liao Y.-C. ; Lee C.-J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2013
卷: 6, 期: 4 起始页码: 263
结束页码: 267
语种: 英语
Scopus关键词: data set
; drought stress
; dry season
; flood
; global warming
; hydrological cycle
; magnitude
; precipitation (climatology)
; precipitation assessment
; seasonal variation
; water vapor
英文摘要: Global temperatures have risen over the past few decades. The water vapour content of the atmosphere has increased as a result, strengthening the global hydrological cycle. This, in turn, has led to wet regions getting wetter, and dry regions drier. Climate model simulations suggest that a similar intensification of existing patterns may also apply to the seasonal cycle of rainfall. Here, we analyse regional and global trends in seasonal precipitation extremes over the past three decades, using a number of global and land-alone observational data sets. We show that globally the annual range of precipitation has increased, largely because wet seasons have become wetter. Although the magnitude of the shift is uncertain, largely owing to limitations inherent in the data sets used, the sign of the tendency is robust. On a regional scale, the tendency for wet seasons to get wetter occurs over climatologically rainier regions. Similarly, the tendency for dry season to get drier is seen in drier regions. Even if the total amount of annual rainfall does not change significantly, the enhancement in the seasonal precipitation cycle could have marked consequences for the frequency of droughts and floods. © 2013 Macmillan Publishers Limited. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106810
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Research Center for Environmental Changes, Academia Sinica, Taipei 11529, Taiwan; Department of Atmospheric Sciences, National Taiwan University, Taipei 10617, Taiwan; Department of Geography and Berkeley Atmospheric Sciences Center, University of California, Berkeley, CA 94720-4740, United States; Civil Aeronautics Administration, Ministry of Transportation and Communications, Taipei 10548, Taiwan
Recommended Citation:
Chou C.,Chiang J.C.H.,Lan C.-W.,et al. Increase in the range between wet and dry season precipitation[J]. Nature Geoscience,2013-01-01,6(4)