Changes between Version 2 and Version 3 of Doc/DataAnalyse

Timestamp:

10/11/19 12:21:20 (5 years ago)

Author:

glipsl

Comment:

--

Doc/DataAnalyse

@@ -11 +11 @@
 # Data #
 
+## Start with CMIP archives ##
+
+We highly recommend to read the user's guide of CMIP projects available at: [https://pcmdi.llnl.gov/mips/]
+
+## Access CMIP archives ##
+
+CMIP archives are available through the ESPRI platform including CICLAD and ClimServ machines.
+You can create an account on ESPRI mesocentre to transparently log to CICLAD or ClimServ at [https://meso-account.ipsl.fr/].
+
+## Dive into CMIP archives at IPSL ##
+
+The IPSL-CM model produces CMIP-compliant files. The CMIP convention include the CF convention with additional rules from the WIP panel (ex. a CMIP file must describe only one variable).
+Once the IPSL-CM data are quality checked, the CMIP-compliant files are migrated to a dedicated filesystem at TGCC following the CMIP directory structure.
+This part of the TGCC filesystem is read-only mounted on the ESPRI mesocentre.
+On CICLAD and ClimServ, the CMIP data archives are then available under :
+
+`/bdd/CMIP6`
+
+`/bdd/CMIP5`
+
+The CMIP data from the other GCMs are downloaded at the IDRIS and IPSL. They are organized in the same CMIP directory structure and transparently available in the same `/bdd` root. 
+
+Example:
+`/bdd/CMIP5/output/IPSL` provides access to the '''whole''' IPSL-CM data production for CMIP5 exercice.
+`/bdd/CMIP5/output/BCC` provides access to BCC data requested by the IPSL community. 
+
+We adopted an "on-demand" process to add CMIP data from other GCM. Please send your request at `glipsl@ipsl.fr` with the following template:
+{{{
+cat < EOF > my_template.txt
+project=CMIP5
+experiments=historical amip
+models=IPSL-CM5A-LR CNRM-CM5
+ensembles=all
+variables[atmos][3hr]=cltc tas
+variables[land][fx]=sftgif
+variables[seaIce][mon]=sic evap
+EOF
+}}}
+
+## What's a dataset? ##
+
+A "dataset" (as defined by ESGF) is '''one''' version of a data set resulting from a single simulation (i.e., characterised by a unique option of each CMIP facet before the version such as the institute, the model, the domain, the experiment, the frequency, the ensemble, etc.).
+
+Examples:
+CMIP5 dataset: `CMIP5/output1/IPSL/IPSL-CM5A-LR/ 1pctCO2/mon/atmos/Amon/r1i1p1/v20110427`
+
+A dataset is the finest granularity for ESGF publication.
+
 # Analyse #