/* DATA DESCRIPTION: Citation: Bons, Paul D; Kleiner, Thomas; Llorens, Maria-Gema; Prior, David J; Sachau, Till; Weikusat, Ilka; Jansen, Daniela (2018): Band-pass-filtered ice-sheet surface elevation, thickness, velocity and derived data maps for the northern Greenland Ice Sheet. PANGAEA, https://doi.org/10.1594/PANGAEA.890558, Supplement to: Bons, PD et al. (2018): Greenland Ice Sheet: Higher Nonlinearity of Ice Flow Significantly Reduces Estimated Basal Motion. Geophysical Research Letters, 45(13), 6542-6548, https://doi.org/10.1029/2018GL078356 Abstract: In times of warming in polar regions, the prediction of ice sheet discharge is of utmost importance to society, because of its impact on sea level rise. In simulations the flow rate of ice is usually implemented as proportional to the differential stress to the power of the exponent n=3. This exponent influences the softness of the modeled ice, as higher values would produce faster flow under equal stress. We show that the stress exponent, which best fits the observed state of the Greenland Ice Sheet, equals n=4, Our results, which are not dependent on a possible basal sliding component of flow, indicate that most of the interior northern ice sheet is currently frozen to bedrock, except for the large ice streams and marginal ice. Coverage: LATITUDE: 76.158036 * LONGITUDE: -38.668208 Event(s): Northern_Greenland_Ice_Sheet * LATITUDE: 76.158036 * LONGITUDE: -38.668208 * METHOD/DEVICE: Multiple investigations (MULT) Parameter(s): File content (Content) * PI: Bons, Paul D (https://orcid.org/0000-0002-6469-3526, paul.bons@uni-tuebingen.de) File name (File name) * PI: Bons, Paul D (https://orcid.org/0000-0002-6469-3526, paul.bons@uni-tuebingen.de) File format (File format) * PI: Bons, Paul D (https://orcid.org/0000-0002-6469-3526, paul.bons@uni-tuebingen.de) File size [kByte] (File size) * PI: Bons, Paul D (https://orcid.org/0000-0002-6469-3526, paul.bons@uni-tuebingen.de) Uniform resource locator/link to file (URL file) * PI: Bons, Paul D (https://orcid.org/0000-0002-6469-3526, paul.bons@uni-tuebingen.de) License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 75 data points */ Content File name File format File size [kByte] URL file Description and georeferencing Description_and_georeferencing.pdf PDF 59 https://store.pangaea.de/Publications/BonsP-etal_2018/Description_and_georeferencing.pdf 1 surface elevation 1_surface_elevation.txt TXT 71276 https://store.pangaea.de/Publications/BonsP-etal_2018/1_surface_elevation.txt 1 surface elevation thumb 1_surface_elevation_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/1_surface_elevation_thumb.tif 2 ice thickness 2_ice_thickness.txt TXT 97613 https://store.pangaea.de/Publications/BonsP-etal_2018/2_ice_thickness.txt 2 ice thickness thumb 2_ice_thickness_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/2_ice_thickness_thumb.tif 3 driving stress 3_driving_stress.txt TXT 53242 https://store.pangaea.de/Publications/BonsP-etal_2018/3_driving_stress.txt 3 driving stress thumb 3_driving_stress_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/3_driving_stress_thumb.tif 4 mean shear rate 4_mean_shear_rate.txt TXT 53242 https://store.pangaea.de/Publications/BonsP-etal_2018/4_mean_shear_rate.txt 4 mean shear rate thumb 4_mean_shear_rate_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/4_mean_shear_rate_thumb.tif 5 predicted V surf ice n4 5_predicted_V_surf_ice_n4.txt TXT 92530 https://store.pangaea.de/Publications/BonsP-etal_2018/5_predicted_V_surf_ice_n4.txt 5 predicted V surf ice n4 thumb 5_predicted_V_surf_ice_n4_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/5_predicted_V_surf_ice_n4_thumb.tif 6 predicted V base n4 6_predicted_V_base_n4.txt TXT 54935 https://store.pangaea.de/Publications/BonsP-etal_2018/6_predicted_V_base_n4.txt 6 predicted V base n4 thumb 6_predicted_V_base_n4_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/6_predicted_V_base_n4_thumb.tif 7 data mask 7_data_mask.txt TXT 53242 https://store.pangaea.de/Publications/BonsP-etal_2018/7_data_mask.txt 7 data mask thumb 7_data_mask_thumb.tif TIF 1663 https://store.pangaea.de/Publications/BonsP-etal_2018/7_data_mask_thumb.tif