The research on RTM of bathymetry estimation in airborne gravity data downward continuation

The RTM of bathymetry is introduced in the remove-restore technique in order to construct high accuracy marine gravity map. Based on the relationship between the bathymetry and the gravity anomaly, the bathymetry model is used to study the effect of the bathymetry to the marine gravity anomaly. Meanwhile, the application of the Tikhonov regularization algorithm to airborne gravity data downward continuation is researched. The experiments demonstrated the bathymetry aided information can improve the terminal result.