关键词: 低温雨雪冰冻/ 气候特征/ 气温/ 雨雪/ 极端低温

Abstract:

At the beginning of 2008,the severe low temperature and freezing took place in Hubei Province.The direct economic losses caused by the disaster were as much as 110 billion.It is necessary to analyze the climatic features during the period.The spatialtemporal differences and contemporary comparison on the air temperature,precipitation,sunlight and days of the continuous low temperature from 12th January to 3rd February of 2008 at the 78 meteorological stations of Hubei Province were analyzed.The days of continuous low temperature,the largest number of days of continuous rain and snow,and the extreme low temperature of all the recorded low temperature and freezing events at the 10 typical stations were also analyzed.The results show that 1)The mean temperature during the period，-1～-2℃ at the most part of Hubei,is abnormally 4～6℃  lower than that of perennial same term and is the lowest record.It is because the maximum temperature was abnormally low,but the minimum temperature was not so low.2)The snowfall frequently took place and the total rainfall and snowfall was excessive.3)The low temperature and freezing lasted for 16～22 days at the most parts of Hubei Province,which also set up a new record.4) The sunlight was abnormally insufficient.The persistent and stable abnormal atmospheric circulation directly leads to the low temperature and freezing at the most parts of Hubei Province.

Key words: low temperature and freezing/climatic figure/air temperature/rainfall and snowfall, extreme low temperature