基于静力学延迟模型的河北地区可降水量反演分析

Inverse Analysis on the PWV of Hebei Province Based on the ZHD Models

水汽在天气演变中具有非常重要的作用,直接影响着天气变化和自然灾害的发生,在天气演变与气候变化中扮演着关键的角色。文中利用静力学延迟模型对河北省秦皇岛和石家庄两个测站的可降水量进行了反演分析,结果表明:提取的两个测站的天顶对流层延迟均值为2.4m,利用3种静力学延迟模型计算得到的可降水量及其在时间上总体变化趋势是一致的,并且GPS/PWV和实际降雨呈现出很强的相关性。

The water vapor is very important in the weather evolution. It directly impacts the climate change and natural disasters, and plays a key role in the weather evolution and climate change. This paper applies the ZHD models to make an inverse analysis of the PWV of Qinhuangdao station and Shijiazhuang station in Hebei Province. The results show that ZTD of the two stations is 2.4mm. The PWV calculating results from three ZHD models are basically the same, the trends of PWV on the temporal distribution of three different ZHD models are consistent, and GPS/PWV shows a strong correlation with the actual rainfall.