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根据四川网络GPS站点附近的气压、温度计算了天顶静力学延迟量,经过综合分析,得到了最适于四川地区的天顶静力学延迟模型。建立了适于四川地区的加权平均温度计算公式,并说明了此公式的有效性。使用了全球气压和温度模型(GPT)代替实测气象数据进行水汽反演,将GPT可降水量与实测气象可降水量、探空数据可降水量以及实际降水量进行比较分析,得出了一些有益结论。
Based on the pressure and temperature near the GPS network in Sichuan Province, the statics delay was calculated. After comprehensive analysis, the optimal zenith statics delay model was obtained. The formula for calculating the weighted average temperature in Sichuan is established and the validity of this formula is illustrated. Using the Global Atmospheric Pressure and Temperature Model (GPT) instead of the measured meteorological data for the vapor inversion, the GPT precipitable water was compared with the measured meteorological precipitable water, the sounding data available for precipitation and the actual precipitation, and some beneficial results in conclusion.