中文摘要：

基于CNES实时轨道钟差数据和精密单点定位方法进行大气可降水量反演实验研究，分析了该数据实时反演大气可降水量的精度。结果表明，采用CNES实时轨道钟差数据的计算值同SuomiNet公布值吻合较好；同采用IGS最终星历的计算值比较，实时轨道钟差数据误差对大气可降水量反演结果有毫米级影响。

英文摘要：

The accuracy of PWV results derived from IGS predicted ultra-rapid product is limited by its quality, PWV values are estimated with precise point positioning method with CNES real-time orbits and clocks. The inversion results are compared separately with PWV values released by SuomiNet and those estimated from IGS final product. The analysis demonstrates a good agreement between those PWV results derived from different data. The errors of CNES real-time orbits and clocks could influence PWV results in millimeter level.