Alpine ice sheet glacial cycle simulations continuous variables

These data contain a subset of time-dependent glacier model output variables.

Reference:

• Seguinot, J., Ivy-Ochs, S., Jouvet, G., Huss, M., Funk, M., and Preusser, F.: Modelling last glacial cycle ice dynamics in the Alps, The Cryosphere, 12, 3265-3285, doi:10.5194/tc-12-3265-2018, 2018.

File names:

alpcyc.{1km|2km}.{epic|grip|md01}.{cp|pp}.{ex.100a|ex.1ka|ts.10a}.nc

• Horizontal resolution:
  • 1km: 1 km horizontal resolution
  • 2km: 2 km horizontal resolution
• Temperature forcing:
  • epic: EPICA ice core temperature forcing
  • grip: GRIP ice core temperature forcing
  • md01: MD01-2444 core temperature forcing
• Precipitation forcing:
  • cp: constant precipitation
  • pp: palaeo-precipitation reduction
• Variable types:
  • ex.100a: spatial diagnostics every hundred years
  • ex.1ka: spatial diagnostics every thousand years
  • ts.10a: scalar time-series every ten years

Data format: The data use compressed netCDF format. For quick inspection I recommend ncview. Spatial diagnostics (*.ex.*.nc) can be converted to GeoTIFF (and other GIS formats) e.g. using GDAL:

gdal_translate NETCDF:filename.nc:variable -b band filename.variable.band.tif

The list of variables (subdatasets) can be obtained from ncdump or gdalinfo. The band number equals 120 minus the age in ka. Band information can be displayed with:

gdalinfo NETCDF:filename.nc:variable

Variable long names, units, PISM configuration parametres and additional information are contained within the netCDF metadata. Also see aggregated variables.

Changelog:

• Version 3:
  • Add spatial diagnostics every hundred years (*.ex.100a.nc)
• Version 2:
  • Add age coordinate in kiloyears (ka) before present.
  • Replace NCO by Xarray workflow (no effect on the results).
• Version 1:
  • Initial version.