Monitoring land subsidence in the Venice Lagoon with TerraSAR-X
T. Strozzi, U. Wegmuller
Gamma Remote Sensing, Muri (BE), Switzerland
L. Tosi
Institute of Marine Sciences, CNR, Venezia,
Italy
P. Teatini
Dept. Mathematical Methods and Models for Scientific
Applications, University of Padova, Padova, Italy
ABSTRACT
The main objective of our TerraSAR-X project is the monitoring of land
movement in Venice and the surrounding lagoon with a stack of TerraSAR-X
acquisitions. The interferometric analysis and interpretation will be carried
out at regional (i.e. lagoon) as well as local (e.g. at the lagoon inlets)
scale in order to investigate the land subsidence components due to natural
factors (e.g. residual sediment consolidation) and anthropogenic interventions
(e.g. MOSE, i.e. the mobile barrier under construction at the lagoon inlets
to prevent seawater entering the lagoon during high tides). The
interferometric results will be calibrated, validated and integrated with the
local observation networks including spirit leveling, permanent GPS and ENVISAT
ASAR interferometry. In this contribution we report on initial interferometric
investigations conducted on natural and artificial targets using a first set
of 15 TerraSAR-X scenes.
