 The Gravity Recovery and Climate Experiment, GRACE, satellite mission provided a unique dataset for monitoring groundwater storage variations on a global scale. This dataset was used to estimate groundwater levels, identify aquifer depletion and calculate groundwater related parameters such as specific yield. Despite some limitations, GRACE has been successfully applied to monitor groundwater storage changes in various regions around the world. This article was authored by Frederic Frappert and Deon Ramillion.