Greenland Interannual Ice Mass Variations Detected by GRACE Time‐Variable Gravity

To better understand the impact of climate forcing on Greenland ice sheet (GrIS), we study GrIS mass variations interannual timescale as observed by satellite mission Gravity Recovery and Climate Experiment (GRACE). By employing method empirical orthogonal function) analysis, find: (a) That are significantly correlated with Pacific Decadal Oscillation, suggesting a connection to changes Icelandic Low (a permanent low-pressure system) related PDO; (b) An East-West Costal Dipole precipitation anomaly subjects North Atlantic Oscillation; (c) Certain contribution Multidecadal Oscillation in form temperature runoff anomalies.