SAR interferometry confirms the present land stability of Venice
T. Strozzi, U. Wegmuller, C. Werner, A. Wiesmann
Gamma Remote Sensing, Muri (BE), Switzerland
L. Tosi
Istituto per lo Studio della Dinamica delle Grandi Masse, CNR, Venezia,
Italy
P. Teatini,
Dept. Mathematical Methods and Models for Scientific
Applications, University of Padova, Padova, Italy
ABSTRACT
The city of Venice is very vulnerable to loss in land elevation as a result of
subsidence and eustacy because of its small elevation above sea level. The alarm
of the scientific community related to this persistent problem is increasing
because of the forecasts of sea level rise caused by global warming. In order to
evaluate the present relative settlement of Venice, a study has been performed by
combining high precision levelling surveys and SAR interferometry. The analysis
points out at an unprecedented detail the present ground stability of the city.
