Annual Greenland mass and elevation change from laser altimetry with different firn densification models between 1994 and 2020

Annual surface elevation change and mass change (total and dynamic) of the Greenland Ice Sheet on 1x1 km grids between 1994 - 2020 (2021 for GSFC and GEMB) from Gao et al. (2025), in prep. They are reconstructed using SERAC (Surface Elevation Reconstruction And Change detection) time series of surface elevation change, which fuses NASA's airborne and satellite laser altimetry measurements and DEMs from stereo aerial photographs between 1978 and 1987 near the ice sheet margin, and three different firn height change datasets from firn densification models (FDM): IMAU, GSFC, and GEMB. The full description of methods and materials can be found in the paper. The dataset includes: Annual_rates_grids_EPSG32624: The gridded dataset with EPSG: 32624 – WGS 84 / UTM zone 24N. Annual_rates_grids_EPSG3413: The gridded dataset with EPSG:3413 – WGS 84 / NSIDC Polar Stereographic North. Annual_rates_points: Annual changes estimated at the location of the SERAC time series without spatial interpolation. Annual_rates_errors_basins: Annual drainage basin and ice sheet mass change time series, as well as error estimations. Readme.txt: Detailed description of the dataset.