近55年寒亭区主要气象灾害变化特征分析

Analysis on the Variation Characteristics of Major Meteorological Disasters in Hanting in Nearly 55 Years

[目的]分析近55年寒亭区主要气象灾害的变化特征。[方法]利用寒亭区1960～2014年高温日数、暴雨日数、雷暴日数、大雾日数、大风和冰雹日数资料，采用统计分析方法对近55年来寒亭区主要气象灾害的变化特征进行分析。[结果]寒亭区是个气象灾害频发的地区，高温天气有增长的趋势，暴雨日数的年际变化呈缓慢下降的趋势，年平均大风日数为18．6d；年平均雷暴日为24．5d，属多雷区，一年中除l和12月外，均有雷暴天气发生，年际变化较大；大雾天气呈缓慢上升的趋势，一年四季均会发生；寒亭区属局地冰雹天气多发地区，年际间上下波动不稳定。[结论]该研究为寒亭区的气象防灾减灾提供科学的理论依据。

[ Objective] The research aimed to analyze the variation characteristics of major meteorological disasters in Hanting in nearly 55 years. [ Method ] Using the data of the number of high temperature days,heavy rain days, thunderstorm days, heavy fog days,strong wind clays and hail clays from 1960 to 2014, the variation characteristics of major meteorological disasters in Hanting were analyzed by statistical analysis method. [ Result ] Hanting area was a frequent meteorological disasters region, there was a growing trend of hot weather, the interannual varia- tion of heavy rain days showed a slow downward trend, the annual average wind days was 18.6 d. The annual average thunderstorm clay was 24.5 d, belong the area with more lightning activities;in addition to 1 year and 12 months, were thunderstorms occur, the interannual variability was large. Fog was slowly rising trend and will occur throughout the year. Hanting belonged to local hail-prone areas, which was unstable fluctu- ations for each year. [ Conclusion ] The study provides the scientific basis for the prevention and mitigation of the meteorological disaster in Han- ting area.