Glacially induced stresses and strains in Canada

Dataset of finite element (FE) model input files for software Abaqus and rebound stress and strain tensor results in 2.5 km depth.

FE_models.zip contains Abaqus input files for 7 different FE models of glacial isostatic adjustment (GIA) in Canada. The GIA models use ice model f0050rn001_2022 with 147 time steps, which is a special version of the well known ICE-6G_C GIA-based reconstruction (Argus et al., 2014; Peltier et al., 2015). It combines University of Toronto Glacial Systems Model simulations of the second generation (2.0) with updated ice physics and simulation of surface hydrology (lakes and rivers) (Stuhne & Peltier, 2016, 2017). The loading files also contain load changes from sea level variations corresponding to global ice load changes on the selected Earth model. There are 7 Earth models with different rheologic structure. Details can be found in the corresponding manuscript (Steffen & Steffen, 2024).

results.tar.gz contains the rebound stress and strain tensors in 2.5 km depth in Canada for each time step of a GIA model, resulting in 1029 (147*7) files named "{earth_model_name}_stress_strain_{time_in_1000_years_before_present}.dat". The files contain both the internal coordinates of the model and their corresponding longitude and latitude. Note that the grid is partly irregular as there are model parts which have a finer mesh. The format of the files is:x-coordinate of model in km, y-coordinate of model in km, longitude in degree E, latitude in degree N, GIA stress tensor (S11, S22, S33, S12, S13, S23) in MPa and strain tensor (E11, E22, E33, E12, E13, E23) in strain.