基于GAIMT软件利用不同星历反演PWV的研究
Based on GAMIT and using different ephemeris calculate PWV
对当前公认的高精度GPS数据处理软件GAMIT进行简单的介绍，基于GAMIT利用最终精密星历和预报精密星历分别解算相同的测站数据，得到测站天顶方向的对流层总延迟，通过SAASTAMOINEN模型计算干延迟，提取出湿延迟后结合地面气象数据反演大气可降水量（PWV）,通过比较两种星历反演的结果表明：最终精密星历和预报精密星历在解算结果上精度相当，预报精密星历在实时的水汽监测中满足要求，能够为降水的预报，预警提供帮助。
In this paper we introduce GAMIT simply. Based on GAMIT, using final ephemeris and ultra-rapid ephemeris calculate the same stations date and then obtain the zenith troposphere delay. Calculate the zenith dry delay with the SAASTAMOINEN model. Extract the zenith wet delay and compute precipitable water vapor combined with meteorological parameter. Through the comparison of result by final ephemeris with that by ultra-rapid ephemeris we conclude that the accuracy of the results is consistent. The ultra-rapid ephemeris can meet the requirement of real-time monitoring water vapor and can provide help for rainfall and warning.
姜建、彭军还
地球物理学大气科学（气象学）
GAMITGPS星历干延迟湿延迟大气可降水量
GAMITephemeriszenith dry delayzenith wet delayPWV
姜建,彭军还.基于GAIMT软件利用不同星历反演PWV的研究[EB/OL].(2012-11-23)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201211-445.点此复制
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