pmip3:cmip6:design:21k:data
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pmip3:cmip6:design:21k:data [2016/03/25 14:53] jypeter |
pmip3:cmip6:design:21k:data [2016/05/04 12:14] (current) jypeter Added a warning saying that the official page is now on the PMIP4 web site |
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| + | <note warning>This page was moved to the PMIP4 web site on May 4th 2016!\\ Please use the new web page to get up-to-date information!!\\ https://pmip4.lsce.ipsl.fr/doku.php/data:ice</note> | ||
| + | |||
| ====== PMIP4-CMIP6 ice-sheet data ====== | ====== PMIP4-CMIP6 ice-sheet data ====== | ||
| Line 34: | Line 36: | ||
| * nb_lat, nb_lon = 1080, 2160 (regular 10 minutes intervals) | * nb_lat, nb_lon = 1080, 2160 (regular 10 minutes intervals) | ||
| - | * latitude_values = [-89.91667175, -89.75, -89.58334351, ... 89.58333588, 89.75 , 89.91666412] | + | * 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] | + | * longitude_values = [ 0., 0.16666667, 0.33333334, ... 359.5, 359.66668701, 359.83334351 ] |
| * NO time axis (1 time step per file) | * NO time axis (1 time step per file) | ||
| - | === Time steps === | + | === Time steps and data files === |
| - | * 48 time steps in 48 files, from 0k to 26k | + | * 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] | * 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 === | === Variables === | ||
| - | * Topo | + | * **Topo**: Topography (Point-value altitude), meters |
| - | * Orog | + | * on continents: surface altitude (including grounded ice sheet) |
| - | * sftlf | + | * on ice-free oceans, and where there is floating ice (ice shelves): bathymetry |
| - | * sftgif | + | * **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 | ||
| === References === | === References === | ||
| - | Please cite **both** following papers: | + | 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, [[http://gji.oxfordjournals.org/content/early/2014/05/29/gji.ggu140|10.1093/gji/ggu140]] | + | * 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, [[http://gji.oxfordjournals.org/content/early/2014/05/29/gji.ggu140|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, [[http://onlinelibrary.wiley.com/doi/10.1002/2014JB011176/abstract|doi:10.1002/2014JB011176]] | + | |
| + | * 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, [[http://onlinelibrary.wiley.com/doi/10.1002/2014JB011176/abstract|doi:10.1002/2014JB011176]] | ||
| === Download === | === Download === | ||
| + | FIXME | ||
| ==== Tarasov GLAC-1D for PMIP4 ==== | ==== Tarasov GLAC-1D for PMIP4 ==== | ||
| + | === Grid === | ||
| + | |||
| + | * nb_lat, nb_lon = 360, 360 | ||
| + | * latitude_values = [ -89.75, -89.25, -88.75, ... 88.75, 89.25, 89.75 ] | ||
| + | * longitude_values = [ 0.5, 1.5, 2.5, ... 357.5, 358.5, 359.5 ] | ||
| + | * time axis: see the //Time steps// section below | ||
| + | |||
| + | === Time steps and data files === | ||
| + | |||
| + | * 261 time steps in one file, from 0k to 26k : data every 100 years, from 0k to 26k BP | ||
| + | * time_values = [ -26. , -25.9, -25.8, ... -0.2, -0.1, 0. ] | ||
| + | * all the variables and all the time steps are in the same file: ''TOPicemsk.GLACD26kN9894GE90227A6005GGrBgic.nc'' | ||
| + | |||
| + | === Variables === | ||
| + | |||
| + | * **HDC**: GLAC contemp. elevation(masl), meters | ||
| + | * on continents (including ice sheets) and ice shelves: surface altitude (including ice sheets/shelves) | ||
| + | * on ice-free ocean: bathymetry | ||
| + | * **HDCB**: GLAC contemp. elevation(masl), bathymetry for floating ice, meters | ||
| + | * on continents (including ice sheets) and ice shelves: surface altitude (including ice sheets) | ||
| + | * on ice-shelves: altitude of the bottom of the floating ice | ||
| + | * on ice-free ocean: bathymetry | ||
| + | * **ICEM**: GLAC ice mask, fraction | ||
| + | * ice fraction values between 0.0 (no ice) and 1.0 (100% ice) | ||
| + | |||
| + | Notes: | ||
| + | |||
| + | * The land-sea mask can be computed with: | ||
| + | * HDCB > 0 : ls_mask = 1 (land) | ||
| + | * HDCB <= 0 : ls_mask = 0 (no land) | ||
| + | * Computing the ''HDC-HDCB'' difference yields: | ||
| + | * ice-shelves thickness where there are ice shelves | ||
| + | * 0.0 everywhere else | ||
| + | |||
| + | === References === | ||
| + | |||
| + | Please cite **all** the following papers: | ||
| + | |||
| + | * L. Tarasov and W. Richard Peltier **Greenland glacial history and local geodynamic consequences**, Geophysical Journal International, 150, 198-229, [[http://onlinelibrary.wiley.com/doi/10.1046/j.1365-246X.2002.01702.x/abstract|doi:10.1046/j.1365-246X.2002.01702.x]] | ||
| + | * Lev Tarasov, Arthur S. Dyke, Radford M. Neal and W.R. Peltier, **A data-calibrated distribution of deglacial chronologies for the North American ice complex from glaciological modeling**, Earth and Planetary Science Letters, Volumes 315–316, 15 January 2012, Pages 30–40, [[http://www.sciencedirect.com/science/article/pii/S0012821X11005243|doi:10.1016/j.epsl.2011.09.010]] | ||
| + | * Robert D. Briggs , David Pollard , Lev Tarasov, **A data-constrained large ensemble analysis of Antarctic evolution since the Eemian**, Quaternary Science Reviews, Volume 103, 1 November 2014, Pages 91–115, [[http://www.sciencedirect.com/science/article/pii/S0277379114003448|doi:10.1016/j.quascirev.2014.09.003]] | ||
| + | * 4th paper to be added here (Eurasian component) | ||
| + | |||
| + | === Download === | ||
| + | |||
| + | FIXME | ||
| \\ \\ \\ | \\ \\ \\ | ||
pmip3/cmip6/design/21k/data.1458917592.txt.gz · Last modified: 2016/03/25 14:53 by jypeter
