Differences

This shows you the differences between two versions of the page.

--- data:ice [2016/05/04 14:17]
jypeter Added links to Tarasov data
+++ data:ice [2019/02/13 14:23]
jypeter [References] replaced the menviel et al @ CP ref with the GMD (to be updated) ref
@@ Line 2: / Line 2: @@
 <WRAP info round center 60%>
-You will find on this page the boundary condition data that you have to use for the [[exp_design:lgm|Last Glacial Maximum]] and the [[exp_design:deglaciation|Last Deglaciation]] experiments
+You will find on this page some of the boundary condition data that you have to use for
+  * [[exp_design:lgm|Last Glacial Maximum]]
+  * [[exp_design:degla|Last Deglaciation]]
+  * [[exp_design:degla_t2|Penultimate Deglaciation]]
 Please make sure to read the [[#how_to_use_the_data|HOWTO]] section in order to use the data correctly!
@@ Line 11: / Line 14: @@
 | [[R.Ivanovic@leeds.ac.uk|Ruza Ivanovic]] | Last Deglaciation |
 | [[Didier.Roche@lsce.ipsl.fr|Didier Roche]] | LGM, Last Deglaciation |
+| [[l.menviel@unsw.edu.au|Laurie Menviel]] | Penultimate Deglaciation |
+| [[capron@nbi.ku.dk|Emilie Capron]] | Penultimate Deglaciation |
 | [[Jean-Yves.Peterschmitt@lsce.ipsl.fr|Jean-Yves Peterschmitt]] | Technical questions |
 </WRAP>
+===== References =====
+  * Kageyama, M., Albani, S., Braconnot, P., Harrison, S. P., Hopcroft, P. O., Ivanovic, R. F., Lambert, F., Marti, O., Peltier, W. R., Peterschmitt, J.-Y., Roche, D. M., Tarasov, L., Zhang, X., Brady, E. C., Haywood, A. M., LeGrande, A. N., Lunt, D. J., Mahowald, N. M., Mikolajewicz, U., Nisancioglu, K. H., Otto-Bliesner, B. L., Renssen, H., Tomas, R. A., Zhang, Q., Abe-Ouchi, A., Bartlein, P. J., Cao, J., Li, Q., Lohmann, G., Ohgaito, R., Shi, X., Volodin, E., Yoshida, K., Zhang, X., and Zheng, W.: **The PMIP4 contribution to CMIP6 – Part 4: Scientific objectives and experimental design of the PMIP4-CMIP6 Last Glacial Maximum experiments and PMIP4 sensitivity experiments**, Geosci. Model Dev., 10, 4035-4055, doi:[[https://doi.org/10.5194/gmd-10-4035-2017|10.5194/gmd-10-4035-2017]], 2017
+  * Ivanovic, R. F.; Gregoire, L. J.; Kageyama, M.; Roche, D. M.; Valdes, P. J.; Burke, A.; Drummond, R.; Peltier, W. R. and Tarasov, L.: **Transient climate simulations of the deglaciation 21–9 thousand years before present, version 1; PMIP4 Core experiment design and boundary conditions**, Geosci. Model Dev., 9, 2563–2587, doi:[[http://www.geosci-model-dev.net/9/2563/2016/|10.5194/gmd-9-2563-2016]], 2016.
+  * Menviel, L. et al, **The penultimate deglaciation: protocol for PMIP4 transient numerical simulations between 140 and 127 ka, version 1.0**, GMD, 2019, https://dx.doi.org/available_soon
 ===== How to use the data =====
-  * Choose the type of boundary condition you want to use. Look at the available data below, and at the [[pmip3:cmip6:design:21k:gallery|ice-sheet gallery]] page.
+  * Choose the type of boundary condition you want to use. Look at the available data below, and at the [[https://wiki.lsce.ipsl.fr/pmip3/doku.php/pmip3:cmip6:design:21k:gallery|ice-sheet gallery]] page.
     * Do not forget to document what you have chosen!
-  * FIXME ([[https://wiki.lsce.ipsl.fr/pmip3/doku.php/pmip3:design:21k:final#ice-sheets_and_related_changes|PMIP3]])
+  * Read the appropriate paper(s) in the [[#references|References]] above
   * After processing the boundary condition data, send a copy the BC data //as seen by your model// to [[Jean-Yves.Peterschmitt@lsce.ipsl.fr|Jean-Yves Peterschmitt]]: netCDF file and plot
@@ Line 29: / Line 41: @@
 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 ====
+==== Data ====
-=== Grid ===
+  * [[data:ice_ice6g_c|Peltier ICE-6G-C for PMIP4]]
+  * [[data:ice_glac_1d|Tarasov GLAC-1D for PMIP4]]
-  * 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
-=== 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, [[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]]
-=== 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 [[https://files.lsce.ipsl.fr/public.php?service=files&t=9f30da9df21c13af7bea5aed34618b8c|ice_sheet download link]] and then on the file you need
-<WRAP center round important 60%>
-Groups running the lgm experiment have to use the ''I6_C.VM5a_10min.sftlf.21_CASPIAN.nc'' file, where the Caspian sea has been set to the modern Caspian sea in the land-sea mask variable
-</WRAP>
-^  md5sum output  ^  Data file  ^
-| 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 |
-| c8a69bd5b3c1d5aa55b361e9b7dea99e | I6_C.VM5a_10min.sftlf.21_CASPIAN.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 |
-==== 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 ===
-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 [[https://files.lsce.ipsl.fr/public.php?service=files&t=1263d598f2f7720f1e03028850e6d4b8|ice_sheet download link]] and then on the file you need
-<WRAP center round important 60%>
-Groups running the lgm experiment have to use the ''GLAC-1D.sftlf.21_DIRTY-CASPIAN.nc'' land-sea mask file, where the Caspian sea has been set to the modern Caspian sea in the land-sea mask variable
-</WRAP>
-^  md5sum output  ^  Data file  ^
-| 3796bd615de2811f593483d648b94562 | GLAC-1D.sftlf.21_DIRTY-CASPIAN.nc |
-| e8be8847a4dabd0a446682d51f6d77c3 | TOPicemsk.GLACD26kN9894GE90227A6005GGrBgic.nc |