PMIP4 ICE-6G-C ice-sheet data

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 and data files

48 time steps in 48 files, from 0k to 26k BP : data every 500 years from 0k to 21k BP, then every 1000 years till 26k BP

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]

all the variables for the same time step are in the same file

Variables

Topo: Topography (Point-value altitude), meters

on continents: surface altitude (including grounded ice sheet)

on ice-free oceans, and where there is floating ice (ice shelves): bathymetry

Orog: Orography (Point-value surface altitude), meters

on continents: altitude (including grounded ice sheet)

on ice-free oceans: 0.0 (zero)

on ice-shelves: surface altitude

sftlf: Point-value Landmask, %

values are 0 (not land) or 100 (land)

does not include floating ice

sftgif: Point-value Icemask, %

values are 0 (not ice) or 100 (ice)

floating ice is included

Notes:

Computing the sftlf-sftgif difference yields:

100: where there is land without ice

-100: where there is floating ice-sheet

0: elsewhere

Freshwater fluxes

Melt-uniform option

Check the Download section to access the I6_C.VM5a_fwf_uniform.txt data file

Melt-routed option

References

Please cite all 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

You will find below a table with all the available data files, and their md5sum checksum (if you want to check that you download was OK, you can just type md5sum file.nc and compare the result to what is displayed in the table).

If you want to download a file, click on the ice_sheet download link and then on the file you need. The files are currently protected by a password. Get in touch with Jean-Yves Peterschmitt if you need to access them.

md5sum output	Data file
8a8dbcf29e470d01da1466d5fcdd1527	I6_C.VM5a_fwf_uniform.txt
5ba8c0df48a12132238ffcbf675578e0	I6_C.VM5a_10min.0.nc
85ab7bf8b90ce0567ada52368c11ddd8	I6_C.VM5a_10min.0.5.nc
c35409318de8d68a8e0731915897e8cd	I6_C.VM5a_10min.1.nc
adefdf757b495b0701470ee10539ba2b	I6_C.VM5a_10min.1.5.nc
c212e04194ffa3deca47e19d206521fb	I6_C.VM5a_10min.2.nc
5d4194ae75b1d7f5427809f3bc15de0b	I6_C.VM5a_10min.2.5.nc
1e39cba575afc871f8017f04154b4dd8	I6_C.VM5a_10min.3.nc
1371cc7980cc7f58c6d095b906781dc2	I6_C.VM5a_10min.3.5.nc
cc1b10682a3aad6fece52fa64df7053b	I6_C.VM5a_10min.4.nc
10fa8a511560c8f422c5a49aee3490a4	I6_C.VM5a_10min.4.5.nc
6e2c7e647dd3870f633f5523fec451eb	I6_C.VM5a_10min.5.nc
cb0e2c9ed3d344b0e9f46b8bab2261d6	I6_C.VM5a_10min.5.5.nc
d75beb9612b3281adf48c2c1556e80ed	I6_C.VM5a_10min.6.nc
59f0986a7718bf2501a56f4d78aa82e2	I6_C.VM5a_10min.6.5.nc
6286cc8b473a8b9eb518d198313165b6	I6_C.VM5a_10min.7.nc
f322a34a64ac22dfac51f51a09de10b2	I6_C.VM5a_10min.7.5.nc
2e79dd041bd2bb6a2a4cdc60e721bfa1	I6_C.VM5a_10min.8.nc
efdc2808b7b89ca87817f5ec5da70d17	I6_C.VM5a_10min.8.5.nc
dd88ee2889bf4f63ac376ec697d9ad83	I6_C.VM5a_10min.9.nc
24743df87baf8553526fdc36575e50a1	I6_C.VM5a_10min.9.5.nc
061a5facad371878e23abf268185e35a	I6_C.VM5a_10min.10.nc
160b84499c8bf45015bdbf9dabbac153	I6_C.VM5a_10min.10.5.nc
7c01dcc26051ad7c326ac9051c4c405a	I6_C.VM5a_10min.11.nc
6d7161ac4ea2e712b6f9663e5fe21179	I6_C.VM5a_10min.11.5.nc
e742322517320d9ff61c5d9fca8e25b9	I6_C.VM5a_10min.12.nc
a7b16f877df9cdf62d4cc2088d8ab2eb	I6_C.VM5a_10min.12.5.nc
429ed0b9eaceaffda43523e011c01fae	I6_C.VM5a_10min.13.nc
e3fb84ae29042592369f260d34b85fea	I6_C.VM5a_10min.13.5.nc
832d4e842fc65dc8e07af40ba551e368	I6_C.VM5a_10min.14.nc
55ddce7c9e237e17a0fa648cd11deddc	I6_C.VM5a_10min.14.5.nc
b6b0a51ff9cfc3f30532e6c0e49592bf	I6_C.VM5a_10min.15.nc
a47a49626b6778fa387ccc78831a0025	I6_C.VM5a_10min.15.5.nc
257b8cd456c7936d2daf4383e92690fe	I6_C.VM5a_10min.16.nc
6c1fe398efeeed143c47d150f0dfeba4	I6_C.VM5a_10min.16.5.nc
90981cc37069758307d8cdeca9f6b1de	I6_C.VM5a_10min.17.nc
f22013d948a4fdd85d8f476574ddab51	I6_C.VM5a_10min.17.5.nc
f4dbbd2742d920e5c0bd324f190885d1	I6_C.VM5a_10min.18.nc
7a95dc97c4818db719bc1e0008889883	I6_C.VM5a_10min.18.5.nc
2a6064e417d0b2242956be4ffc4d75f6	I6_C.VM5a_10min.19.nc
0337c11ea0c15a565d942eec83dce645	I6_C.VM5a_10min.19.5.nc
516a3530681ba4a7963a5c31a857274f	I6_C.VM5a_10min.20.nc
28bfdccdb9da24aafa5a999ff11e0ee5	I6_C.VM5a_10min.20.5.nc
9443668583800099ce9e865be90e4ad6	I6_C.VM5a_10min.21.nc
dabcbabf06211ccf6bdcdf306a85d3cc	I6_C.VM5a_10min.22.nc
da0268feca9fa4d2f2c479e38a72b197	I6_C.VM5a_10min.23.nc
78b35dd7d1c2d7b39c8eb37feef8ca9b	I6_C.VM5a_10min.24.nc
f51db17bc0f90392464df9a0fb83bf59	I6_C.VM5a_10min.25.nc
489570ddeadd55b3887b43d89f1abfad	I6_C.VM5a_10min.26.nc