Abstract:Using multi-source satellite altimetry data, we construct the mean sea surface height model with a resolution of 1′×1′ in the range of 9°-19°N and 110°-116°E, and elaborate on the methods of collinear analysis of ERM data, removal of the temporal oceanic variability of geodetic mission(GM) data, adjustment of intersections between single and multiple satellites, and gridding. The experimental results show that the mean, RMS, and STD of the difference between the mean sea surface height model and CLS15 are 0.59 cm, 2.85 cm, and 2.79 cm, respectively, and the mean, RMS, and STD of the difference with DTU18 are 2.06 cm, 4.17 cm, and 3.62 cm, respectively. We use the model-independent altimetry data(Sentinel-3B, HY-2B) to verify the accuracy of the model, use HY-2A, Jason-3 and Sentinel-3A satellite data to establish the MSS, and then compare the new data with T/P(TOPEX/Poseidon) data to analyze the effect of the new data on the MSS.
SONG Haotian,WEN Hanjiang,CHENG Pengfei et al. Establishment of Mean Sea Surface Height Model Based on Multi-Source Altimetry Data[J]. jgg, 2023, 43(5): 467-473.