Geodetic GPS detail network established in 1990-91 for the study of deformation control of Mount Melbourne volcano, Victoria Land.

Geodetic GPS network established in 1990-91 for the study of deformation control of Mount Melbourne volcano, Victoria Land. The network, composed of 8 points, has been surveyed four times: 1990-91, 1993-94,1995 and 1997-98 by GPS methodology in static modality, for evaluation of the local geodynamics and the Volcano deformations. The results obtained with two different software (Geotracer v. 2.25 and Bernese v.4.0) and different approach to GPS data solutions (Lc,L1,L3) were significantly different. It is probably due to the different algorithms and to the modelization of ionospheric effects. So a new data processing has been made with a third software, Gipsy, presenting a different approach. A deformation analysis has been made integrating geodetic measurements with geophysical observations.