ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 38 Issue 4 > 2012,38(4):464-471. DOI:10.7519/j.issn.1000-0526.2012.04.011 Prev Next
Climatic Characters over China in 2011
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Abstract:
The general outline of China climate in 2011 can be characterized by words warm and dry. The annual mean temperature was 0.5℃ higher than normal, which ranked the 15th consecutive warm year since 1997. The mean annual total precipitation over China was 556.8 mm, 9% less than normal， which ranked the least since 1951. In 2011, there had no severe largescale persistent droughts and basin flood disasters occurring in China, the losses related with low temperature and snow disasters, local strong convection weather, and tropical cyclones were less than normal. However, the regional and period meteorological hazards were abrupt and frequent in 2011. In early 2011, North China, Yellow River and Huaihe River Basin (Huanghuai) experienced the most serious autumnwinter droughts in recent 41 years. The Middle and Lower Reaches of Yangtze River experienced the most serious winterspring droughts in recent 60 years, and abrupt transition from drought to flooding appeared in June. The Southwest China experienced the most serious summerautumn droughts in recent 60 years. The Huaxi (West China) and Huanghuai experienced the obviously regional distinct floods in autumn. The southern part of South China experienced comparatively serious rainstorm disasters in October. The heavy rainfall caused water logging and inundation in big cities such as Beijing during the summer and autumn. The persistent hot waves hit most parts of South China in summer, meanwhile the maximum temperature in multiareas broke the historical record. The Typhoon Nesat and Muifa influenced wide areas in China and brought serious losses. In a word, the year 2011 has been a normal and relatively slight year in terms of meteorological disasters with relatively more direct economic losses and the least death toll and affected areas since 1990.
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