陆川年雷暴日数变化特征与相关气象因子关系的分析

Variation Characteristic of Thunderstorm Days and its Relationship with Relevant Meteorological Factors in Luchuan County

利用1961～2010年,50a陆川县常规地面气象观测资料,对陆川县雷暴日数的变化特征和演变规律进行分析,并就月平均雷暴日数与年月平均气温、年月降水总量、年月平均气压的关系进行了分析。结果表明:陆川年雷暴日数随着年平均气温的增高,呈下降趋势,月平均雷暴日数与月平均温度的高低成正比;随年降水总量的减少,呈下降趋势,月平均雷暴日数与月平均降水量也成正比;当陆川年平均气压的增高,年雷暴日数呈下降趋势,月平均雷暴日数与月平均气压的高低成反比。

Basing the conventional surface weather observational data, the variation characteristics of thunderstorm days and the relationship among monthly average thunderstorms days, annual and monthly average temperature, annual and monthly precipitation, and annual and monthly average air pressure were discussed. The results show that the annual thunderstorm days have a decline trend with annual average temperature （air pressure） increasing. The monthly average thunderstorm days are proportional （inversely proportional） to monthly average temperature and precipitation （air pressure） .