This dataset complements the work of Kim et al. (2024), providing gridded ice mass change data for Antarctica, with a resolution of 27km, from January 2003 to December 2020. The dataset was estimated using the constrained linear deconvolution (CLD) method developed by Kim et al. (2022), which integrates satellite gravimetry (GRACE) and altimetry data. The data sampling aligns with the timeframe of the GRACE and GRACE-FO observations. Further information about this dataset can be found in the following publications: B-H Kim, K-W Seo, C-K Lee, J-S Kim, J Chen, and C R Wilson. "Antarctic ice mass change (2003-2016) jointly estimated by satellite gravimetry and altimetry" Journal of Geophysical Research: Solid Earth, 2022. B-H Kim et al. "Partitioning the drivers of Antarctic glacier mass balance (2003-2020) using satellite observations and a climate model" Proceedings of the National Academy of Sciences, in revision. 2024 Overview ------------------------------------------------------------------------------------------------------------------------------------ Data Format: MATLAB binary data container format (.mat) Coordinate System: Polar Stereographic South (Standard longitude = 0, standard latitude = -71) Spatial Resolution: 27km (nominal) Temporal Resolution: Monthly (GRACE & GRACE-FO sampling interval) Temporal Coverage: January 2003 - December 2020 Unit: Millimeter water equivalent (mmH2O) ------------------------------------------------------------------------------------------------------------------------------------