The invention is suitable for the technical field of
earth surface monitoring, and provides an
earth surface deformation monitoring method and
system based on a
time sequence InSAR, and the method comprises the following steps: carrying out the SAR image screening and interferogram generation, and collecting corresponding meteorological data and
thermal infrared data; performing space-time adaptive atmospheric
phase correction, taking the air pressure
vertical gradient and the temperature anomaly as driving factors of atmospheric
delay, and separating an atmospheric phase through a space-time weighted model; dynamic deformation modeling is carried out, and deformation is decomposed into linear deformation and
nonlinear deformation; the method comprises the following steps: taking a mining area road network as a geometric constraint, unwrapping a coherent region by adopting a minimum cost flow
algorithm, converting an unwrapping phase into
sight-line-direction deformation, and calculating
horizontal and vertical deformation components in combination with InSAR
sight-line-direction deformation and a
digital elevation model. The method adapts to a complex
deformation mechanism of a mining area by capturing linear and
nonlinear deformation. Through
sight line deformation and DEM geometric projection, vertical and horizontal deformation separation is realized, and the deformation direction is determined.