Alpine ice sheet erosion potential aggregated variables

These data contain domain-integrated and time-integrated model output variables presented in the reference below or otherwise relevant to last glacial cycle glacier erosion in the Alps.

Reference:

J. Seguinot and I. Delanay. Last glacial cycle glacier erosion potential in the Alps, submitted to Earth Surface Dynamics Discussions, 2021.

File names:

alpero.{1km|2km}.{epic|grip|md01}.{cp|pp}.agg.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

Variables:

Coordinate variables:

x: X-coordinate in Cartesian system

y: Y-coordinate in Cartesian system

lon: longitude

lat: latitude

time: time

age: model age

z: elevation band midpoints

d: distance along transect

Glacier erosion variables:

coo2020_cumu: Cook et al. (2020) cumulative glacial erosion potential

coo2020_rate: Cook et al. (2020) domain total volumic erosion rate

coo2020_hyps: Cook et al. (2020) erosion rate geometric mean

coo2020_rhin: Cook et al. (2020) rhine transect erosion rate

her2015_cumu: Herman et al. (2015) cumulative glacial erosion potential

her2015_rate: Herman et al. (2015) domain total volumic erosion rate

her2015_hyps: Herman et al. (2015) erosion rate geometric mean

her2015_rhin: Herman et al. (2015) rhine transect erosion rate

hum1994_cumu: Humphrey and Raymond (1994) cumulative glacial erosion potential

hum1994_rate: Humphrey and Raymond (1994) domain total volumic erosion rate

hum1994_hyps: Humphrey and Raymond (1994) erosion rate geometric mean

hum1994_rhin: Humphrey and Raymond (1994) rhine transect erosion rate

kop2015_cumu: Koppes et al. (2015) cumulative glacial erosion potential

kop2015_rate: Koppes et al. (2015) domain total volumic erosion rate

kop2015_hyps: Koppes et al. (2015) erosion rate geometric mean

kop2015_rhin: Koppes et al. (2015) rhine transect erosion rate

Other variables:

cumu_sliding: cumulative basal motion

glacier_time: total ice cover duration

warmbed_time: temperate-based ice cover duration

glacier_area: glacierized area

volumic_lift: volumic bedrock uplift

warmbed_area: temperate-based ice cover area

Data format:

The data use compressed netCDF format. For quick inspection I recommend ncview. Conversion to GeoTIFF (and other GIS formats) can be achieved with e.g. GDAL::

gdal_translate NETCDF:filename.nc:variable filename.variable.tif

The list of variables (subdatasets) can be obtained from ncdump or gdalinfo. To convert all variables to separate files use:

gdalinfo $filename | grep NETCDF | cut -d '=' -f 2 |
egrep -v '(lat|lon|time_bounds)' | while read sub
do gdal_translate $sub ${filename%.nc}.${sub##*:}.tif
done

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

Changes:

Version 2:

Add variable for glacierized area within 100-m elevation band.

Use 100-m instead of 10-m elevation bands for erosion rate.

Version 1:

Initial version.