Mean sea surface over China sea derived from multi-satellites altimeter data in orbit

Based on the multi-satellite altimeter data in orbit, which include Jason-2 data since its successful launch(cycle 001-113), Envisat data(cycle 070-107,cross the track adjusted periods) and Jason-1 data after the track adjusted (cycle 263-352), these altimeter data are analyzed and validated cycle by cycle to eliminate the exceptional data cycle after ionosphere correction smoothing, geophysical correcting and data editing. Then the effects of time variation and radial orbit error in the altimetry data are weakened by the collinear process and crossover adjustment. After the unification of reference ellipsoid and reference frame, a 2'×2' resolution mean sea surface model over China sea and its adjacent sea areas(0°-45°N, 100°-140°E) is obtained by Shepard method. Finally, the presented mean sea surface model is compared with MSS_CNES_CLS01 and MSS_CNES_CLS10 model, and the root-mean-square values are 8.28 cm and 11.65 cm respectively. This proves that the new mean sea surface model is correct.