The main research areas of the GeoGrav Research Group of the Department of Geodesy and Surveying of the Aristotle University of Thessaloniki, are summarized as follows:

Gravity field and geoid modeling from terrestrial, airborne and satellite data.

Satellite altimetry and marine geoid modeling.

Spectral and stochastical methods in geodesy.

Hydrography and physical oceanography.

Ocean bathymetry estimation from satellite data.

Sea Surface Topography and Mean Sea Surface modeling.

Computation and validation of Digital Terrain Models.

Wavelet methods in geoid and gravity filed estimation and solution of boundary value problems.

Satellite methods in geodesy and geophysics (GPS and radar altimetry)

GPS for measuring topographic and geodetic networks, for surveying, hydrographic surveying and geophysical/seismic applications and for navigation/fleet management

GPS/GIS combination in cartographic, geodetic, hydraulic and environmental applications


The GeoGrav group develops its activity in significant sectors of Geodesy and Geosciences. The study of the gravity field in combination with the simultaneous exploitation of information derived from the Global Positioning Satellite System (GPS) and relevant scientific areas supports considerably in the forecast, confrontation and management of natural disasters. The treatment and evaluation of heterogeneous data and information via geo-information systems contributes decisively in the - in almost real time - evaluation of critical parameters related to natural phenomena and in planning preparation and relief measures from responsible institutions.