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PMIP4-CMIP6 ice-sheet data
You will find on this page the boundary condition data that you have to use for the
LGM and the
Last Deglaciation experiments
Please make sure to read the HOWTO section in order to use the data correctly!
Get in touch with the following people if you have questions:
How to use the data
Choose the type of boundary condition you want to use. Look at the available data below, and at the
ice-sheet gallery page.
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After processing the boundary condition data, send a copy the BC data
as seen by your model to
Jean-Yves Peterschmitt: netCDF file and plot
Ice-sheet data
The input data for the boundary conditions is available in netCDF files provided by Dick Peltier and Lev Tarasov. You will find below some technical details about the data, and the related publications to cite
Data history
The data files may change a bit (rename or standardize the data, etc…) and you will find the change list below
Peltier ICE-6G-C for PMIP4
Grid
nb_lat, nb_lon = 1080, 2160 (regular 10 minutes intervals)
latitude_values = [-89.91667175, -89.75, -89.58334351, … 89.58333588, 89.75 , 89.91666412]
longitude_values = [0., 0.16666667, 0.33333334, … 359.5, 359.66668701, 359.83334351]
NO time axis (1 time step per file)
Time steps
48 time steps in 48 files, from 0k to 26k
file names = I6_C.VM5a_10min.<time_slice>.nc
with <time_slice> in [0, 0.5, 1, …, 20, 20.5, 21, 22, 23, 24, 25, 26]
Variables
References
Please cite both following papers:
Describe the new Antarctic component of the model: Argus, D.F., Peltier, W.R., Drummond, R. and Moore, A.W. - The Antarctica component of postglacial rebound model ICE-6G_C (VM5a) based upon GPS positioning, exposure age dating of ice thicknesses, and relative sea level histories. Geophys. J. Int., 198, 537-563, 2014,
10.1093/gji/ggu140
Describe the complete model: Peltier, W.R., Argus, D.F. and Drummond, R. (2015) Space geodesy constrains ice-age terminal deglaciation: The global ICE-6G_C (VM5a) model. J. Geophys. Res. Solid Earth, 120, 450-487,
doi:10.1002/2014JB011176
Download
Tarasov GLAC-1D for PMIP4