Average surface mass balance (SMB) components at 1 km for the Canadian Arctic Archipelago (1958-1995 and 1996-2015), links to RACMO2.3 model results in NetCDF format ...

• Main Author: Noël, Brice P Y
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: RACMO; Event label; DATE/TIME; File content; File name; File format; File size; Uniform resource locator/link to file; Arctic; Canadian Arctic Archipelago; albedo; Arctic Archipelago; Baffin
• Online Access: https://dx.doi.org/10.1594/pangaea.881315; https://doi.pangaea.de/10.1594/PANGAEA.881315

The Canadian Arctic Archipelago (CAA) comprises multiple small glaciers and ice caps mostly concentrated on Ellesmere and Baffin Islands in the northern (NCAA) and southern parts (SCAA) of the archipelago, respectively. Because these glaciers are small and show complex geometries, current regional climate models, using 5 to 20 km horizontal resolution, do not properly resolve surface mass balance (SMB) patterns. Here, we present a 58-year (1958-2015) reconstruction of daily SMB of the CAA, statistically downscaled to 1 km from the output of the regional climate model RACMO2.3 at 11 km. By correcting for biases in elevation and ice albedo, the downscaling method significantly improves runoff estimates over narrow outlet glaciers and isolated ice fields. Since the last two decades, NCAA and SCAA glaciers have experienced warmer conditions (+1.1°C) resulting in continued mass loss of 28.2 ± 11.5 Gt yr-1 and 22.0 ± 4.5 Gt yr-1 respectively, more than doubling (11.9 Gt yr-1) and doubling (11.9 Gt yr-1) the ... : Surface mass balance (SMB) components (mm w.e. per year), i.e. SMB, total precipitation (snow + rain), runoff and total melt (ice + snow), statistically downscaled from the output of RACMO2.3 to 1 km resolution covering the northern (NCAA) and southern (SCAA) Canadian Arctic Archipelago, averaged for the periods 1958-1995 and 1996-2015. ...