Global Marine Gravity Gradient Tensor Inverted from Altimetry-derived Deflections of the Vertical: CUGB2023GRAD

CUGB2023GRAD is a dataset consisting of all six components of Earth's gravity gradient tensor over the oceans. The gravity gradient tensor is inverted from 1 arc-minute grid of altimetry-derived north-south and east-west components of deflection of the vertical. CUGB2023GRAD has a longitudinal extent of 180° W ~180° E and a latitudinal extent of 80° S ~ 80° N.

This version used a merge of deflections of the vertical (north_32.1.nc and east_32.1.nc) developed by Scripps Institution of Oceanography, and DTU21GRA-derived deflections of the vertical. DTU21GRA is a highly accurate gravity anomaly model developed by Technical University of Denmark. Both sets of deflections of the vertical were developed from multiple satellite altimetry observations which include: Jason-1, Jason-2, Cryosat-2, SARAL/AltiKa, and Sentinel-3A/B.