A seamless coastal gravimetric quasi-geoid model was computed using a combination of heterogeneous gravity data.A comparison to the precise GNSS/leveling derived height anomalies,accurately determined the discrepancy of the 1985 national height datum with respect to the gravimetric quasi-geoid.Based on the numerical results,the discrepancy of the 1985 national height datum with respect to the gravimetric quasi-geoid with W_0 defined by IERS2010 standard is 30.4±1.0 cm.After transmitting the 1985 national he...
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