Assessment of Water Cycle Intensification Over Land using a Multisource Global Gridded Precipitation DataSet

被引:59
作者
Markonis, Y. [1 ]
Papalexiou, S. M. [1 ,2 ,3 ]
Martinkova, M. [1 ]
Hanel, M. [1 ]
机构
[1] Czech Univ Life Sci Prague, Fac Environm Sci, Prague, Czech Republic
[2] Univ Saskatchewan, Civil Geol & Environm Engn, Saskatoon, SK, Canada
[3] Global Inst Water Secur, Saskatoon, SK, Canada
关键词
precipitation; water cycle intensification; heavy rainfall; MSWEP; rainfall extremes; precipitation quantiles; GENERAL-CIRCULATION MODEL; HEAVY PRECIPITATION; HYDROLOGICAL CYCLE; PERFORMANCE ASSESSMENT; CLIMATE SENSITIVITY; DAILY TEMPERATURE; TRENDS; RAINFALL; INDEXES; FREQUENCY;
D O I
10.1029/2019JD030855
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
The change in the empirical distribution of future global precipitation is one of the major implications regarding the intensification of global water cycle. Heavier events are expected to occur more often, compensated by decline of light precipitation and/or number of wet days. Here, we scrutinize a new global, high-resolution precipitation data set, namely, the Multi-Source Weighted-Ensemble Precipitation v2.0, to determine changes in the precipitation distribution over land during 1979-2016. To this end, the fluctuations of wet days precipitation quantiles on an annual basis and their interplay with annual totals and number of wet days were investigated. The results show increase in total precipitation, number of wet days, and heavy events over land, as suggested by the intensification hypothesis. However, the decline in light/medium precipitation or wet days was weaker than expected, debating the "compensation" mechanism.
引用
收藏
页码:11175 / 11187
页数:13
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