辽宁阜新地区春季增雨天气特征分析

目的]分析阜新地区春播期第一场透雨天气特征,为当地春季播种人工增雨、抗旱减灾提供气象依据。方法]对近46 a地面观测资料、春季天气变化系统、以及气要素分析图,欧亚地面图、550 hPa、700 hPa高空图等,做叠加归纳分析。结果]阜新地区春播期适时透雨年占80%,20%的年份无透雨。影响阜新地区春播期降水天气系统主要有3种,即东北低压、华北低压和冷锋云系。结论]东北低压和华北低压降水天气系统适合飞机人工增雨作业,冷锋云系适合高炮火箭人工增雨作业。

Analysis of the Weather Characteristics in Rainfall Increment Period of Spring in Fuxin Region,Liaoning Province

Objective] This study aimed to analyze the first soaking rainfall characteristics during the spring sowing period in Fuxin region,in order to provide weather basis for local artificial rainfall in sowing period and drought disaster reduction.Method] Superposition induction analysis was conducted on the basis of ground observation data,weather change system in spring,weather factor analysis chart,European and Asian ground map,550 hPa and 700 hPa height map in recent 46 years.Result] 80% of the years were ...