Tide correction method based on satellite altimetry data

The invention discloses a tide correction method based on satellite altimetry data, and relates to the technical field of satellite altimetry. Tide information is extracted through a sea level height time sequence measured by an altimetric measurement satellite, tide correction is performed on the satellite altimetry data according to the tide information, as a result, inadaptability, caused by usage of a global tide model, to tide correction of regional sea areas can be avoided, and the practicability and accuracy of the satellite altimetry data in monitoring and predicting regional sea level changes are improved.