Monitoring municipal solid waste small magnitude landfill settlement with DInSAR.

Municipal solid waste landfill has been suffering from well-documented, post-closure settlement over a long period of time. Settlement may lead to various undesirable phenomena such as cracks, failure of the cover system and surface ponding contamination surrounding areas and the aquifer. In this paper we highlight how differential synthetic aperture radar (SAR) Interferometry (DInSAR) is capable of monitoring landfill settlements on different spatial and temporal scales. We focus our attention on the Montegrosso-Pallareta landfill (Potenza, Italy) using COSMO-SkyMed interferometric data. Results are compared with a solid waste landfill settlement model, showing good agreement between measurements and expected deformation.