What is the primary cause of the observed widespread increases in precipitation intensity
Significant increases in precipitation intensity, as a result of increases of heavy precipitation and/or decreases of light precipitation have been observed over widespread regions of the globe.Global wanning and effects of anthropogenic aerosols have been proposed as possible causes of these changes.In this work we identify the primary cause of the increases in precipitation intensity by contrasting observed characteristics of precipitation in the tropical 10°S-10°N oceanic region to those at higher latitudes (5°N-20°N, 20°N-45°N land area) in the Northern Hemisphere (NH) for 1979-2007, and a polluted region in eastern China (1955-2011).Significant increases in heavy precipitation and/or decreases in light precipitation with net increases in precipitation intensity are found in all regions examined, while amounts of total precipitation show relative small or negligible changes.Characteristics of these changes suggest that global warming rather than aerosol effects is the primary cause of the changes.
Extreme precipitation global warming aerosols risk of floods and droughts
Run Liu Shaw C.Liu Ralph J.Cicerone C.J.Shiu Jun Li Jingli Wang Yuanhang Zhang
State Key Joint Laboratory of Environmental Simulation and Pollution Control,College of Environmenta Research Center for Environmental Changes, Academia Sinica, Taipei 11529;Department of Atmospheric S National Academy of Sciences, Washington DC 20001, USA and also at Earth System Science, University Research Center for Environmental Changes, Academia Sinica, Taipei 11529 Institute of Urban Meteorology of China Meteorological Administration, Beijing 100089
国内会议
2015中国科协海峡两岸青年科学家学术活动月两岸环保高层专家论坛
北京
英文
1-18
2015-09-21（万方平台首次上网日期，不代表论文的发表时间）