Adjusting a model of compartments in a subterranean reservoir based on comparisons of predicted and observed movements of ground surface

A compartment model of fluid compartments 110 in a reservoir 102 is generated 134, and based on the compartment model and a geomechanical model 124 of the subterranean structure, movement of a ground surface 130 (e.g. subsidence, uplift) due to volumetric change of the compartments is predicted 136. Satellite measurements (e.g. InSAR) 108,122 of the ground surface are received over time, where the received satellite measurements of the ground surface over time indicate movement of the ground surface. The movement of the ground surface indicated by the received satellite measurements is compared with the predicted movement 130, and based on the comparing, one or more properties of the geomechanical model are adjusted. The process may be iterative. The refined geomechanical model is then used to refine the compartment model. Generating the compartment model may involve generating a material balance interference (MBI) matrix.