Determination of the Absolute Rate of Sea Level by UsingGPS Reference Station and Tide Gauge Data

The rate of absolute mean sea level of Xiamen sea area is derived from the data of Xiamen tide gauge station and Xiamen GPS fiducial station of crustal movement observation network of China. The height variety is discussed in this paper. It is shown that height has spread and periodic variations. So the precision rate of vertical land movement can not be obtained only from several GPS campaigns.