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= Atmospheric forcing data for ORCHIDEE =
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ORCHIDEE needs several forcing data in order to run correctly. The number of requested data is dependant of the configuration used.
In On-Line mode, the data needed are related to soil texture and color. If the vegetation is prescribed, ORCHIDEE needs in addition a vegetation information defining the fraction of each PFT per gridcell. Vegetation types gathered in these vegetation maps can be either PFT or Holson categories.
In Off-Line mode, ORCHIDEE is forced by weather data based on observations or climate model reanalysis.
Last, depending of the options activated within a run of ORCHIDEE, additional maps might be used for irrigation, slope for routing scheme, ...
== 1. Weather Data ==
=== 1.0 General information ===
(a) '''ORCHIDEE accepts meteorological forcing files at different frequencies''':
* '''high frequency''' meteorological files have a forcing step lower than or equal to six hours (most of the datasets below are 3-hourly or 6-hourly);
* '''daily''' files (for example ISI-MIP files);
* '''monthly''' files (see WG files below).
It is the role of the driver to inter/extrapolate timeseries of the forcing meteorological variables at the time step of ORCHIDEE (usually 30 min) based on the forcing dataset.
(b) '''Two versions of the driver are available''' to do do both the reading and the inter/extrapolation of the forcing datasets. They differ in the way they interpret the time at which the diffrent variables are read in the forcing dataset (further called the timestamp, while the interval refers to the period between two succesive timestamps):
* '''the old driver (src_driver/dim2driver)''', which assumes that scalar variables (Tair,Qair,Psurf,Wind) are instantaneous values at the timestamp, while flux variables (Rainf,Snowf, SWdown, LWdown) are mean values over the interval ending at the timestamp. This driver also requires that the first value of the annual files corresponds to 00UTC+dt_forcing (for insatnce 03UTC for a 3hourly forcing), and that the last value is for Dec 31st at 24UTC = 00UTC on Jan 1st of the following year.
* '''the new driver (src_driver/orchideedriver.f90) is more flexible''' and can normally deal with any temporal structure of the forcing datasets, provided the required attributes are inserted in the forcing files. Yet, orchideedriver is not yet compatible with libIGCM. This document [attachment:Description_Forcing_Files.pdf] provides details of how forcing files need to be prepared. It addresses in particular the issues one may face when the fluxes are averaged and scalar variables instantaneous. The driver needs to take this into account else the diurnal cycle can be misplaced. Some data providers have different convention for representing averaged fluxes and this type of details matter.
A longer discussion on the differences between the two drivers (dated in 2016) can be found on https://forge.ipsl.jussieu.fr/orchidee/wiki/Branches/Driver_Improvements.
(c) '''Usually, the forcing files are stored in the shared accounts''' in IGCM/SRF/METEO directory. The shared accounts are found:
* At TGCC: /ccc/work/cont003/dsm/p86ipsl/IGCM
* At IDRIS:
* On the ada machine: /workgpfs/rech/psl/rpsl035/IGCM
* On the ergon machine: /u/rech/psl/rpsl035/IGCM
* LSCE, obelix : /home/orchideeshare/igcmg/IGCM
* IPSL Ciclad : /prodigfs/ipslfs/igcmg/IGCM
* At the web by DODS : http://dods.ipsl.jussieu.fr/igcmg/IGCM
The datasets available from the shared accounts are noted with a *.
Some additional forcings not yet on the shared acount can be found at climserv/ciclad here /bdd/ORCHIDEE_Forcing/BC/OOL/OL2
Read more about the shared accounts and IGCM repository here [http://forge.ipsl.jussieu.fr/igcmg_doc/wiki/DocBenvEcommonfiles]
(d) '''Tips and script examples when building/using meteorological forcing files''':
* '''Land compressed files''':
- The spatial structure of ORCHIDEE forcing files can either be 2D, or 1D if we exclude the sea points to construct a vector of land points. In both cases, this imposes a land-sea mask, to define the land points on which ORCHIDEE will run if we use 2D files, or to construct the 1D files. In the latter case, the landpoint indices are initialized in the NW corner, and increase for each land point encountered when scanning the 2D array from W to E then from N to S.
- In dim2driver ("old"), this part is addressed in readdim2 > forcing_read_interpol > flinget_buffer > flinget_r3d > flinget_mat. For a 2D forcing, the sea mask is defined by the undef values found for variable Tair.
- To define the sea points, the '''missing_value''' attribute is mandatory in forcing files containing only land points, with a value outside of the valid range of the variables, for example missing_value=1.e+20. In flinget_mat, the default value is set to 0, if this value is kept, oceanic points will be filled with it and treated as land points because 0. is a valid value for some fields (Qair) but ORCHIDEE will crash because it's not valid for others (PSurf), causing the usual problems in qsatcalc.
- FORTRAN 90 script to create a land points only forcing file (use of the compress attribute) [attachment:mk_grid.f90]
* '''SPRED_PREC''' for forcings at 3 and 6 hourly time step:
- This externalizable keyword defines the nb of orchidee time steps on which the precipitation total of the forcing time step is spread. It can induce significant chnages on the model's behavior (interception and interception loss, infiltration, runoff and ET), although this hasn't been assessed in a systematic way.
- By default, we spread the precipitation over half the forcing time step (1.5h and 3h respectively for 3-hourly and 6-hourly files).
* '''New driver''': you need to add a time attribute to each variable, e.g. "time: instantaneous" our "time: mean(end)", further details in [attachment:Description_Forcing_Files.pdf].
* '''Old driver''':
- The above time attributes are optional but recommended so the files can also be used by the new driver.
- This time attributes should be "time: instantaneous" for the scalars (Tair,Qair,Psurf,Wind), and "time: mean(end)" for the fluxes (Rainf,Snowf, SWdown, LWdown). If the physical definitions of your forcing variables do not fit this scheme, then you should avoid using this forcing with dim2driver, unless you manage to adapt your files to these constraints.
- dim2driver also requires that the first value of the annual files corresponds to 00UTC+dt_forcing (for instance 03UTC for a 3hourly forcing), and that the last value is for Dec 31st at 24UTC = 00UTC on Jan 1st of the following year. Your files must be prepared accordingly.
* '''Physical definition of the forcing variables''': both drivers follow the same conventions. In particular, the following measurement heights are assumed by default: 2m for Tair and Qair; 10m for Wind. Further details in [attachment:Description_Forcing_Files.pdf].
=== 1.1 CRU-NCEP* ===
The meteorological fields are generated by N. Viovy following the protocol described here:
[https://vesg.ipsl.upmc.fr/thredds/fileServer/store/p529viov/cruncep/readme.html][[BR]]
The standard files are produced using the python script "cruncep.py" made available by Bryce Nordgren here:
[https://github.com/bnordgren/pylsce]
There are several versions of CRU-NCEP. All of them are compatible with the old driver.
==== CRU-NCEP / v7.2 ====
v7.2 extends till 2016.[[BR]]
Contributor(s):
- original 0.5° files made by N. Viovy (2016/07)
- adaptation for use with the standard and new drivers and interpolation towards 1- and 2-degree resolutions made by F. Maignan (2017/06)
==== CRU-NCEP / v6.1 ====
v6.1 is based on a new CRU version and extends till 2014.[[BR]]
For the next driver, it contains:
- added attributes for cell_methods,
- a corresponding new time axis,
- variables Height_Lev1 and Height_Levuv,
- attributes units and long_name for variables nav_lat and nav_lon.
Contributor(s):
- original 0.5° files made by N. Viovy (2015/07)
- adaptation for use with the standard and new drivers made by Y. Chao and F. Maignan (2015/07)
==== CRU-NCEP / v5.4 ====
v5.4 contains the same data as v5.3.2 with:
- added attributes for cell_methods,
- a corresponding new time axis,
- variables Height_Lev1 and Height_Levuv,
- attributes units and long_name for variables nav_lat and nav_lon.
Contributor(s):
- adaptation for use with the new driver made by F. Maignan (2015/06)
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_halfdeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2013 || 113 || 6H || || 8 avril 2015|| || 346 GB ||
==== CRU-NCEP / v5.3.2 ====
The former version (5.3) had a problem on all years before 1948 with a loss of correlation between Tair and Qair.[[BR]]
Contributor(s):
- original 0.5° files made by N. Viovy (2015/04)
- standard driver 0.5° files made by Y. Chao (2015/04)
- standard driver 1° and 2° files made by F. Maignan (2015/04)
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_halfdeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2013 || 113 || 6H || || 8 avril 2015|| || 346 GB ||
|| cruncep_onedeg_yyyy.nc || || -180:180; -90:90 || 360x180 || 1901 || 2013 || 113 || 6H || || 8 avril 2015|| || 359 GB ||
|| cruncep_twodeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2013 || 113 || 6H || || 8 avril 2015|| || 90 GB ||
==== Archived CRU-NCEP versions: ====
Following versions have been removed from the syncronized repository. Contact the orchidee-help if you need one of these versions. They are archived at IDRIS/ergon.
==== CRU-NCEP / v5.3 ====
This version is archived at IDRIS/ergon :
/linkhome/rech/psl/rpsl035/IGCM_backup_2015-06-15/STORAGE/BC/OL2/CRU-NCEP
'''CAUTION: DO NOT USE ANYMORE''': This version has a problem on all years before 1948 with a loss of correlation between Tair and Qair.[[BR]]
Contributor(s):
- original 0.5° files made by N. Viovy (2014/10)
- standard driver 0.5° files made by Y. Chao (2014/10)
- standard driver 1° and 2° files made by F. Maignan (2014/10)
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_halfdeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2013 || 113 || 6H || || 1 oct 2014|| || 346 GB ||
|| cruncep_onedeg_yyyy.nc || || -180:180; -90:90 || 360x180 || 1901 || 2013 || 113 || 6H || || 1 oct 2014|| || 359 GB ||
|| cruncep_twodeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2013 || 113 || 6H || || 1 oct 2014|| || 90 GB ||
==== CRU-NCEP / v5.2 ====
This version is archived at IDRIS/ergon :
/linkhome/rech/psl/rpsl035/IGCM_backup_2015-06-15/STORAGE/BC/OL2/CRU-NCEP
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2012 || 112 || 6H || || 25 sept 2013|| || 343 GB ||
==== CRU-NCEP / v5.2_2x2deg ====
This version is archived at IDRIS/ergon :
/linkhome/rech/psl/rpsl035/IGCM_backup_2015-06-15/STORAGE/BC/OL2/CRU-NCEP
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_yyyy_2x2.nc || || -180:180; -90:90 || 180x90 || 1901 || 2012 || 112 || 6H || || 25 sept 2013|| || 89 GB ||
==== CRU-NCEP / v2 ====
This version is archived at IDRIS/ergon :
/linkhome/rech/psl/rpsl035/IGCM_backup_2015-06-15/STORAGE/BC/OL2/CRU-NCEP
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| cruncep_halfdeg_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2010 || 110 || 6H || || 5 juin 2013|| || 362 GB ||
|| cruncep_halfdeg_yyyy_noleap.nc || || -180:180; -90:90 || 720x360 || 1904 || 2008 || 27 || 6H || || 5 juin 2013|| || 89 GB ||
|| cruncep_halfdeg_yyyy_leap.nc || || -180:180; -90:90 || 720x360 || 1904 || 2008 || 27 || 6H || || 5 juin 2013|| || 89 GB ||
Default is to use the noleap files (through symbolic links).
=== 1.2 CRU ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| forceyyyy.nc || || -180:180; -90:90 || 720x360 || 1901 || 2002 || 103 || monthly || || oct 2004 || || 10.7 GB ||
|| forceyyyy_yyyy.nc || || -180:180; -90:90 || 720x360 || 1901_1909 || 1994_2002 || 7 || monthly || || oct 2004 || || ||
=== 1.3 ERA_New_Global* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| ERA_Global_yyyy.nc || || -180:180; -90:90 || 512x256 || 1979 || 2012 || 34 || 3H || || 22 juin 2013|| || 437 GB ||
=== 1.4 FLUXNET* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| IdSite_Fyear-Lyear.nc || eg. FR-LBr_1996-2006.nc || / || in-situ || site-specific || || || 30minutes || http://dods.ipsl.jussieu.fr/igcmg/IGCM/BC/OOL/OL2/FLUXNET/README.pdf || || http://www.earth-syst-sci-data-discuss.net/8/23/2015/essdd-8-23-2015.html || 4Mo per year||
The data have been prepared for all sites of the Free Access Fluxnet database (http://www.fluxdata.org/DataInfo) as available in August, 2012 (~150 sites).
=== 1.5 WFD_CRU ===
This data corresponds to the one described in the publication Weedon et al. 2011 (http://journals.ametsoc.org/doi/abs/10.1175/2011JHM1369.1)
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFD_CRU_yyyy.nc || WFD_CRU || -180:180; -90:90 || 720x360 || 1901 || 2001 || 1000 || 3H || || 14 Nov 2014|| || 592 GB ||
=== 1.6 WFDEI_CRU ===
This data corresponds to the one described in the publication Weedon et al. 2014 (http://onlinelibrary.wiley.com/doi/10.1002/2014WR015638/abstract). Compared to WFD, WFDEI offers values in the 21st century owing the ERA-Intermin reanalysis.
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFDEI_CRU_yyyy.nc || WFDEI_CRU || -180:180; -90:90 || 720x360 || 1979 || 2016 || 34 || 3H || || November 2017 || || 314 GB ||
As this data is based on the ERA-I re-analysis the fluxes are cumulated over the 3h period preceding the time-stamp. All other variables are instantaneous at the given date. This is now properly described by the cell_method data in the netCDF file.
=== 1.7 WFDEI_GPCC* ===
There are several versions of WFDEI_GPCC.
==== WFDEI_GPCC ====
This is the same atmospheric forcing as the one described above (1.6 WFDEI_CRU) except that rainfall is now corrected with the GPCC data : http://www.dwd.de/bvbw/appmanager/bvbw/dwdwwwDesktop?_nfpb=true&_windowLabel=T12404818261141645314319&_urlType=action&switchLang=en&_pageLabel=_dwdwww_klima_umwelt_datenzentren_wzn
As this rainfall series is shorter, WFDEI_GPCC has fewer years than WFDEI_CRU.
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFDEI_GPCC_yyyy.nc || WFDEI_GPCC || -180:180; -90:90 || 720x360 || 1979 || 2013 || 32 || 3H || || February 2016|| || 289 GB ||
==== WFDEI_GPCC/v1/noleap ====
This dataset is available in the shared accounts (IGCM/SRF/METEO directory).
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFDEI_GPCC_yyyy.nc || || -180:180; -90:90 || 720x300 || 1979 || 2009 || 31 || 3H || || 3 juin 2013|| || 182 GB ||
The old driver (dim2driver) needs a forcing that has its first record at 0 UTC, in addition to instanteaneous "scalars" and fluxes as mean(end), to work correctly. The original WFDEI starts at 3UTC, and to make it compatible with with dim2driver, a lag of 3 hours has been introduced by Ben Poulter and Fabienne Maignan.
==== WFDEI_GPCC/v2/leap ====
This dataset is available in the shared accounts (IGCM/SRF/METEO directory).
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFDEI_GPCC_yyyy.nc || || -180:180; -90:90 || 720x360 || 1990 || 2011 || 33 || 3H || || 26 avril 2014|| || 265 GB ||
NB: Year 2011 is incomplete.
The above shift has not been done here, and this forcing should only be used with the new driver (orchideedriver.f90).
=== 1.8 Princeton_GPCC* ===
This dataset is available in the shared accounts (IGCM/SRF/METEO/Princeton_GPCC/v1/1deg_3h directory).
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| PGF_GPCC_1deg_3h_yyyy.nc || || -180:180; -90:90 || 360x180 || 1948 || 2010 || 63 || 3H || REAME in the shared accounts|| 11 Feb 2015|| || ||
The dataset is based on the data provided by Princeton University, itself based on the NCEP-NCAR reanalysis. Further details are given in Sheffield, J., G. Goteti, and E. F. Wood, 2006: Development of a 50-yr high-resolution global dataset of meteorological forcings for land surface modeling, J. Climate, 19 (13), 3088-3111. Users must cite this reference.
The Princeton forcing uses CRU data for bias-correction, but the present forcing includes an additional bias-correction of total precipitation, based on the monthly GPCC data. This has been performed by Bertrand Decharme (CNRM, Toulouse).
=== 1.9 ERA_05 ===
This meteorological data set has been prepared by ECMWF in the framework of the Earth2Observe project : http://www.earth2observe.eu/
Using a simple bi-linear interpolation the data of the ERA-I re-analysis on the Gaussian grid (N128) output was projected to a regular lat/lon grid at 0.5deg resolution, without special consideration for the land/sea mask. It was thus considered, in consultation with Emanuel Dutra of ECMWF, that it was not unreasonable to use the same land/sea mask as WFDEI and hope that the atmospheric forcing on coastal points will not be too badly affected by the methodology.
The value of this forcing lies in its close relation to the ERA-I re-analysis and its extension to December 2014.
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| ERAI_yyyy.nc || ERAI_05 || -180:180; -90:90 || 720x360 || 1979 || 2014 || 36 || 3H || || 20 June 2015|| || 293 GB ||
=== 1.10 ERA_05_GPCP
This is the same forcing as ERA_05 except for the rainfall and snow fall from the re-analysis which were corrected with the GPCP estimates (http://precip.gsfc.nasa.gov/).
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| ERAI_GPCP_yyyy.nc || ERAI_05_GPCP || -180:180; -90:90 || 720x360 || 1979 || 2014 || 36 || 3H || || 20 June 2015|| || 298 GB ||
=== 1.11 GSWP3
This forcing has been constructed for the GSWP3 experiment, cf. http://hydro.iis.u-tokyo.ac.jp/GSWP3/exp1.html#boundary-conditions. It is based on the 20th Century Reanalysis (20CR) [Compo et al., 2011 http://hydro.iis.u-tokyo.ac.jp/GSWP3/refs.html#compo2011] at the global 2° resolution, dynamically downscaled into T248 (~0.5°). Several versions are available.
==== GSWP3v0 (ISIMIP2) ====
This dataset is available on ergon in /arch/home/rech/lmd/rlmd979/GSWP3_forcing/halfdeg_v1. It was prepared by Jinfeng Chang for the ISIMIP2 simulations, using the TRENDY land mask.
It was also upscaled at the 1° resolution by Fabienne Maignan for the ORCHIDEE-MICT paper (https://www.geosci-model-dev.net/11/121/2018/)
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
||GSWP3_halfdeg_3h _yyyy.nc || GSWP3 || -180:180; -90:90 || 720x360 || 1901 || 2007 || 107 || 3H || || 24 April 2016|| || 5.5 GB/yr ||
==== GSWP3v1 ====
This is the official v1 release of GSWP3. It covers 1901-2010 and is dated on 2017-06-01. The original files are 2D, and only the wind is not worldwide and can serve as a land mask).
This dataset needs to be formatted for ORCHIDEE for :
- the LS3MIP off-line simulation (landhist at the resolution of the IPSL-CM6 climate model 144x143)
- the SP-MIP simulations at the 0.5°
=== 1.12 E2OFD ===
This dataset was build in the framework of the Earth2Observe FP7 project. It is available on the IPSL Meso-centre under /bdd/ORCHIDEE_Forcing/BC/OOL/OL2/E2OFD. It was prepared by Jan Polcher based on the data prepared by ECMWF for the Earth2Observe project.
The originality of this forcing is that it is 1/4°. Most atmospheric forcing data sets were extrapolated from the ERA-I fields with the same bias corrections applied as in the WFDEI cases. The most original feature is the rainfall which is the very original MSWEP product : https://www.hydrol-earth-syst-sci.net/21/589/2017/
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
||E2OFD_yyyy.nc || E2OFD || -180:180; -90:90 || 1440x720 || 1979 || 2014 || 36 || 3H || || July 2016|| || 31 GB/yr ||
== 2. Older Weather Data ==
These forcing data sets have been superseded by more recent re-analysis of meteorological observations and more complete meta-data have been included in the forcing file.
=== 2.1 ISLSCP ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| islscp_for_1987.nc || || -180:180; -90:90 || 360x179 || 1987 || 1987 || 1 || 6H || || 28 jun 2005 || || 1.1 GB ||
=== 2.2 ISLSCP2 ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| islscp_for_yyyy.nc || || -180:180; -90:90 || 360x179 || 1982 || 1995 || 14 || 3H (6H for 1982) || || 28 jun 2005 || ||19 GB ||
=== 2.3 NCC* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| ncc_for_yyyy.nc || || -180:180; -90:90 || 360x180 || 1948 || 2000 || 52 || 6H || [http://thanh.ngoduc.free.fr/wiki/index.php/Main/NCCDataset info]|| sept 2005 ||[http://www.agu.org/pubs/crossref/2005/2004JD005434.shtml ref] || 37 GB ||
=== 2.4 NLDAS* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| orchidee_NLDAS_forcing_yyyymm.nc || || -67:-24; 25:52 || 464x224 || 199701 || 200212 || 6 || 1H || || mai 2008 |||| 197 GB ||
=== 2.5 WFD3/annual* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WFD_yyyy.nc || || -180:180; -90:90 || 720x360 || 1958 || 2001 || 44 || 3H || || april 2010 || || 300 GB ||
=== 2.6 WG* ===
|| Name || || Spatial information || ||Temporal information || || || || Web documentation || || || Size ||
|| Abbreviation || Full name || Coverage || Resolution || First year || Last year || Number of years || Resolution || Informations || Data download || References || GB ||
|| WG_yy.nc || || -180:180; -90:90 || 320x160 || 79 || 93 || 15 || 1M || || may 2007 || 20 MB ||
|| WG_CRU.nc (noleap) || || -180:180; -90:90 || 720x360 || || || 1 || 1M || || may 2007 |||| 37 GB ||