Numerical Modeling Experiments of Combined Effects of Ice and Permafrost on Delta Morphodynamics

• Main Authors: Anastasia Piliouras, Rebecca Lauzon, Joel Rowland
• Format: Dataset
• Language: unknown
• Published: ESS-DIVE: Deep Insight for Earth Science Data 2020
• Subjects: Reduced Complexity Model; river delta; channel dynamics; EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION; EARTH SCIENCE > LAND SURFACE > FROZEN GROUND; EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES; EARTH SCIENCE > LAND SURFACE > LANDSCAPE; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER; EARTH SCIENCE > OCEANS > COASTAL PROCESSES; water surface elevation; ice thickness; permafrost; channel map; delta area; shoreline roughness; time; EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER PROCESSES/MEASUREMENTS > DISCHARGE/FLOW; Ice
• Online Access: https://search.dataone.org/view/ess-dive-5759b5622113c63-20230406T124147579175

This dataset contains output from numerical model experiments to test the combined effects of ice thickness and permafrost erodibility on delta dynamics. All experiments were conducted using DeltaRCM, a reduced complexity cellular model. Details of the model setup and experiments are described in full in Piliouras et al., (in revision). This dataset contains results from a total of 48 experiments, representing 16 different experimental conditions, each of which was run in triplicate. There is a control run (3 total experiments) with no ice and no permafrost. We used permafrost erodibilities (here described as erodibility relative to that of non-permafrost, and therefore < 1) of 0.65, 0.8, and 0.95, where 0.95 represents permafrost being only 5% less erodible than non-permafrost. We used ice thicknesses of 0.5 m, 3 m, and 4.5 m in a 5 m deep basin. We conducted experiments for each possible combination of permafrost erodibility and ice thickness (9 conditions, 27 experiments). We also provide results for experiments with only ice or permafrost (6 conditions, 18 experiments). The excel table (csv file) provides the ice and permafrost conditions for each run ID. Zip files contain model outputs and other variables generated during analysis (see ReadMe file) as numpy arrays (.npy files), which can be accessed using python.