SWOTBat2026GGT: A global marine bathymetry-derived gravity gradient tensor modeled from SWOT data

SWOTBat2026GGT is a global marine gravity gradient tensor (GGT) model derived from bathymetric data computed through the integration of Surface Water and Ocean Topography (SWOT) data. This model maps the global marine gravity field (80°S~80°N, 0°E~360°E), with a spatial resolution of 1′. SWOTBat2026GGT is designed to enhance short-wavelength gravity gradient signals at short wavelengths, providing finer detail than that achievable with conventional satellite altimetry data. The SWOTBat2026GGT model comprises six components: Txx (SWOTBat2026GGT_Txx.nc), Tyy (SWOTBat2026GGT_Tyy.nc), Tzz (SWOTBat2026GGT_Tzz.nc), Txy (SWOTBat2026GGT_Txy.nc), Txz (SWOTBat2026GGT_Txz.nc), and Tyz (SWOTBat2026GGT_Tyz.nc).