In this paper,the linear trend analysis method and the moving average method are used to statistically analyze the interannual variation trend of rainstorm,high temperature,thunder and lightning,strong wind and low temperature disastrous weather events in Mentougou district of Beijing from 1981 to 2020.The monthly distribution of each disaster weather was statistically analyzed,aiming to understand the evolution law of disaster weather in Mentougou district and do a good job in meteorological disaster prevention.The analysis results show that the heavy rain days,thunderstorm days,gale days and low temperature days are gradually decreasing in Mentougou district,except for the linear trend of high temperature days increasing by 1.3 d each 10 years.Rainstorms mostly occur in July and August,and high temperature days occur in May,June,July and August of each year.Lightning strikes in spring as early as March and ends in winter as late as December.Strong winds are most frequent in winter,and cold air processes may occur throughout the year.
维普
万方数据