Evaluation and analysis of continuous low temperature rain and snow process in Hubei Province

Under the background of climate change, extreme and continuous low temperature rain and snow processes occur from time to time, bringing many adverse effects to social life. In order to further evaluate the continuous low temperature rain and snow weather, . In order to further restore the disaster scenario, the indicators of the evaluation of the continuous low temperature rain and snow process at a single station in Hubei province were revised, and the regional evaluation model of the continuous low temperature rain and snow process was fur? ther established. The revised evaluation index was applied to the evaluation of single station and regional continuous low temperature rain and snow process in Hubei Province. The results showed that: (1) The five most serious regional continuous low temperature rain and snow processes occurred in 1954, 1969, 1977, 1984 and 2008, respectively. The most serious process was from December 24, 1954 to January 18, 1955, followed by January 12, 2008 to February 5, 2008. (2) The regions prone to regional continuous low temperature rain and snow process? es in Hubei Province were concentrated in the alpine or semi-alpine regions of western Hubei, Jingzhou area in Jianghan Plain, Hanjiang River valley, low mountain plain area in Southeastem Hubei and the gap of Mountains in northeast Hubei Province. (3) Under the back? ground of climate warming, both single-station and regional continuous low temperature rain and snow processes in Hubei Province occurred more frequently before the 1980s, and decreased after the 1990s, but the severity of the events became more extrem.