Observed trends in light precipitation events over global land during 1961-2010

被引：19
|
作者：
Wen, Guanhuan [1 ]
Huang, Gang [2 ,3 ]
Tao, Weichen [2 ]
Liu, Chunxia [1 ]
机构：
[1] China Meteorol Adm, Guangzhou Inst Trop & Marine Meteorol, Guangdong Prov Key Lab Reg Numer Weather Predict, Guangzhou 510080, Guangdong, Peoples R China
[2] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
[3] Joint Ctr Global Change Studies, Beijing 100875, Peoples R China
来源：
THEORETICAL AND APPLIED CLIMATOLOGY | 2016年 / 125卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
RAIN EVENTS; INTENSE PRECIPITATION; EXTREME PRECIPITATION; HEAVY PRECIPITATION; HYDROLOGICAL CYCLE; INCREASING TREND; STATIC STABILITY; NORTH-AMERICA; CLIMATE; WATER;
D O I：
10.1007/s00704-015-1500-4
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Based on daily station precipitation data, this study investigates the trends in light precipitation events (less than the 50th percentile) over global land during 1961-2010. It is found that the frequency of light precipitation events decreases over East China (EC) and northern Eurasia (NE) but increases over the United States of America (US), Australia (AU), and the Iberian Peninsula (IP). However, the trends in the intensity of light precipitation events are opposite to those in frequency. We find that the trends in light precipitation events are possibly associated with the changes in static stability. Over EC and NE (US, AU, and IP), the static stability weakens (strengthens) during 1961-2010. The weakening (strengthening) of static stability leads to increase (decrease) in precipitation intensity due to the enhancement (reduction) of upward motion; light (relatively heavier) precipitation events accordingly shift toward relatively heavier (light) precipitation, and the frequency of light precipitation events decreases (increases) consequently.
引用
收藏
页码：161 / 173
页数：13
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