Determination of solid Earth tide phase lag be satellite observation data

摘要

The geopotential variation caused by solid Earth, ocean and atmospheric tides can be esti- mated from artificial satellite orbit perturbations. It is shown that he total tidal variation in geopotential field derived from satellite tracking data, combined with the recent accurate measurements of ocean tide obtained by Topex/Pposeidon and atmospheric tide model, permits the estimates of the solid earth tide phase lags for M2 and K1 constituents(respectively 0.12°and 0.13°).