海潮对GNSS总天顶延迟量观测的影响

摘要

在顾及（方案I）和不顾及（方案Ⅱ）海潮影响的情况下，利用中国地壳运动观测网络工程基准站观测数据分别计算总天顶延迟量，并对其进行比较。通过频谱特征分析，进一步研究了海潮对GNSS总天顶延迟量观测的影响，并得出了一些有益的结论。%The observation data of the crustal movement observation network base sta tions ars selected, two groups total zenith delays are calculated in two case of taken into ac count and disregard of the ocean tide correction model, and comparative analysis is presented. In the same time, the characteristics of frequency and amplitude are analyzed,more about the impact of ocean tide on the total zenith delay observations of groundbased GNSS is studied, and useful conclusions are summed up.