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In the framework of several international research projects performed in Ross Sea (Antarctica) in the last years marine gravity data, high resolution reflection seismic line sand deep seismic sounding profiles have been acquired. The gravity data set has been used to compute maps of Bouguer anomaly, isostatic anomaly, isostatic correction and local geoid undulations. Forward modelling of seismic and gravity data has been also used to compute the depths of the Crust-Mantle discontinuity.

An improved geoid, called ADBVE2006 (Autorita di Bacino di Venezia 2006), has been calculated for the north-east of Italy using new land and marine gravity data together with new high resolution multibeam bathymetric data. A standard processing procedure has been applied to gravity data in order to compute the Free Air and the Bouguer anomalies. The gravity reference datum is IGSN71. The long wavelenghth part of the gravity field has been modelled by EGM96. The computation has been carried out by the “remove-restore” spectral technique (Stokes’ approach) using the software GRAVSOFT. The goal of the calculated model is to improve the geoid estimation in the coastal areas, where the calculated geoids usually suffer from the lack of gravimetric data as well as a good bathymetry