Tackling mass redistribution phenomena by time-dependent GRACE- and terrestrial gravity observations

► Validation of temporal gravity variations from GRACE by superconducting gravimeters. ► General agreement between GRACE-derived and terrestrial gravity variations is found. ► Records of superconducting gravimeters contain large-scale hydrological variations. ► Evaluation of local hydrological effects at terrestrial stations is required. ► High correspondence of mode 1 of EOF analyses for GRACE and terrestrial gravity data.