高精度大地测量中的海潮位移改正

Ocean Tide Displacement Corrections in High Precision Geodesy

鉴于目前 IERS规范中缺乏海潮对多数中国测站位移的改正 ,基于表面负荷形变理论 ,本文采用 CSR3 .0全球海潮模型和 Farrell的格林函数结果 ,计算了中国测站的海潮位移改正。部分结果同 IERS公布结果相比 ,符合很好 ,可以用于高精度大地测量 ,对中国地壳形变监测特别是沿海地区地壳形变监测具有重要的实用价值。

Ocean tide displacement corrections for most Chinese geodetic stations are not included in IERS standards. According to surface load deformation theory, we calculated ocean tide displacement corrections for Chinese geodetic stations by using CSR3.0 global ocean tide model and the result of Farrell Green's function. Some calculated results agree well with those published in IERS standards, so they can be used to monitor the crust deformation in high precision geodesy, especially in coast area.