Abstract and subjects
Various geophysical techniques can be used to monitor geologic carbon storage and ensure that it is safe in the long term. Seismic methods are often used to monitor CO (sub 2) migration in the deep regions of a geologic carbon storage site while nonseismic methods provide complementary monitoring from shallow subsurface to the surface. This chapter gives an overview of the geophysical monitoring methods presented in this book including Interferometric Synthetic Aperture Radar (InSAR), frequency modulated spectroscopy, induced microseismic monitoring, time-lapse active seismic monitoring, gravity, electrical and electromagnetic techniques, controlled-source electromagnetic method, electrical resistivity tomography (ERT), and self-potential measurements.