Data set: "North Atlantic cooling is slowing down mass loss of Icelandic glaciers"

• Main Authors: Brice Noël, Guðfinna Aðalgeirsdóttir, Finnur Pálsson, Bert Wouters, Stef Lhermitte, Jan Haacker, Michiel van den Broeke
• Format: Dataset
• Language: unknown
• Published: 2022
• Subjects: Surface mass balance; Iceland; Glaciers; Blue Blob; Climate projection; RACMO; North Atlantic
• Online Access: https://zenodo.org/record/5836476; https://doi.org/10.5281/zenodo.5836476

This data set includes the materials required to reproduce the figures and tables presented in the study: "North Atlantic cooling is slowing down mass loss of Icelandic glaciers". The data consist of: 1. Maps of annual surface mass balance (SMB) of Icelandic glaciers and ice caps (ICL) from RACMO2.3 at 500 m spatial resolution in NetCDF format. smb_rec.1958-2019.RACMO2.3-ERA.ICL-0.5km.YY.nc: annual cumulative SMB of Icelandic glaciers and ice caps (kg m-2 or mm w.e. per year) from RACMO2.3 forced by ERA reanalyses for the period 1958-2019, and further statistically downscaled to 500 m spatial resolution. Forcing includes ERA-40 (1958-1978), ERA-Interim (1979-2018) and ERA5 (2019) reanalyses. smb_rec.1958-2099.RACMO2.3-CESM2-SSP85.ICL-0.5km.YY.nc: annual cumulative SMB of Icelandic glaciers and ice caps (kg m-2 or mm w.e. per year) from RACMO2.3 forced by CESM2 for the historical period 1958-2014 and by CESM2 under a high-end warming scenario SSP5-8.5 for the period 2015-2099, further statistically downscaled to 500 m spatial resolution. Topo_icemask_lsm_lon_lat_ICL-0.5km.nc: mask file including an ice mask, land/sea mask and surface topography derived from the ArcticDEM, and longitude/latitude coordinates on the 500 m grid. NB: the NetCDF files above use a Polar Stereographic North (EPSG:3413) projection with a horizontal resolution of 500 m x 500 m. The reference point is located at 45ºW longitude and 70ºN latitude. 2. Time series of annual ICL-integrated SMB components (Gigatons or Gt per year), annual mean 2 m air temperature above Icelandic glaciers and ice caps (T2m; K), annual mean sea surface temperature (SST) in the Northern Blue Blob. These time series are available in ASCII format for the RACMO2.3 simulation forced by ERA reanalyses (1958-2019) and the RACMO2.3 projection forced by CESM2 under a high-end warming scenario SSP5-8.5 (1958-2099). RACMO2.3-ERA SMB-components-RACMO2.3-ERA-1958-2019.txt: time series of annual integrated SMB, snowfall, rainfall, runoff, total melt, refreezing and retention (Gt ...