Multi-scale assessment of land subsidence risk in major urban areas
of Italy using satellite InSAR, hydrogeological and climate data
F. Cigna, R. Paranunzio
Institute of Atmospheric Sciences and Climate (ISAC), CNR, Italy
R. Boni'
Dept. of Science, Technology and Society (STS), University School for Advanced Studies
(IUSS) Pavia, Italy
P. Teatini, C. Zoccarato
Dept. of Civil, Environmental and Architectural Engineering, University of Padova, Padova, Italy
ABSTRACT
A multi-scale methodology is designed to assess the baseline
and future land subsidence risk scenarios in major urban
areas of Italy. Ground deformation observations from multi-
temporal satellite Interferometric Synthetic Aperture Radar
(InSAR), hydrogeological, topographic and land use datasets
are embedded into an innovative risk assessment workflow,
and processed with advanced geostatistics to identify the
main subsidence hotspots and drivers. Future subsidence risk
is assessed accounting for various climate change scenarios,
demographic and urban development. The results for the 15
metropolitan cities of Italy, and Emilia Romagna region
showcase the potential of the developed methodology and its
benefits to inform water resource management and decision
making, towards sustainable use of groundwater resources
and urban development.
