Abstract

This study was carried out to test to assess thefield gravity value and the elevation value of the local quasigeoid at Hon Dau H0 = 0.890 m withthe purpose for assessing the accuracy of the starting VIGAC2014 national Quasigeoid model based on 75 elevation points of second-order national level. The test results confirmed that the reliability of these above values to set the basis ofscience to solve the problem of modern geophysical survey in Vietnam.