The ICE-7G_NA (VM7) Ice thickness and paleotopography 0-26 ka

The ICE-7G_NA (VM7) model succeeds the ICE-6G (VM5a) and the ICE-5G (VM2 L90) models as the most extensively validated combination of ice thickness history (ICE-xG) and radial viscosity profile (VMy). References for this latest standard version appear below, followed by reproductions of key ice thickness and topography results in the NetCDF file format. The following papers discuss the rationale for updating the ICE-6G_C (VM5a) model (below) on the basis of local sensitivities to the radial viscosity profile: Roy, K., & Peltier, W. R. (2015). Glacial isostatic adjustment, relative sea level history and mantle viscosity: reconciling relative sea level model predictions for the US East coast with geological constraints. Geophysical Journal International, 201(2), 1156-1181, doi:10.1093/gji/ggv066. Roy, K., & Peltier, W. R. (2017). Space-geodetic and water level gauge constraints on continental uplift and tilting over North America: regional convergence of the ICE-6G_C (VM5a/VM6) models. Geophysical Journal International, 210(2), 1115-1142, doi:10.1093/gji/ggx156.