摘要 : Persistent scatterers synthetic aperture radar interferometry (PSI) analysis is viewed as a promising monitoring technique for multiyear detection of ground surface displacements during long term CO_2 injection into deep aquifers ... 展开 Persistent scatterers synthetic aperture radar interferometry (PSI) analysis is viewed as a promising monitoring technique for multiyear detection of ground surface displacements during long term CO_2 injection into deep aquifers (of the order of 25 to 50 years). This technique was successfully utilized at the CO_2 storage site of In-Salah (Algeria). Nevertheless, this success may not be generalized to future onshore industrial-scale CO_2 storage sites, which are planned in far more complex contexts mostly presenting natural terrains, either agricultural or vegetated areas, i.e. characterized by poor PS density, which might locally drop to zero, hence hampering the deployment of the PSI technique. The objective of the present paper is to discuss the constraints on the PSI application regarding the specificities (magnitude, spatial or temporal scales and evolution) of the deformation phenomenon associated with the CO_2 injection into storage aquifers. 收起