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Metadata for CERA experiment 'CGCM3.1_T47_COMMIT_2'
Title
IPCC DDC AR4 CGCM3.1-T47_(med-res) COMMIT run2
Citation
Flato, 2007: IPCC DDC AR4 CGCM3.1-T47_(med-res) COMMIT run2. World Data Center for Climate. CERA-DB "CGCM3.1_T47_COMMIT_2"
http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=CGCM3.1_T47_COMMIT_2
Creation Date
2007-04-24
Summary
These data represent monthly averaged values of selected variables for the Data Distribution Centre (DDC) of the Intergovernmental Panel on Climate Change (IPCC). (see also
http://www.ipcc-data.org/)
The model output prepared for IPCC Fourth Assessment committed climate change experiment (COMMIT).
These datasets are available in netCDF and GRIB format.
The dataset names are composed of
- centre/model acronym (e.g. MPEH5: Max-Planck-Institute/Echam5)
- scenario acronym (e.g. COMMIT: COMMIT)
- run number (e.g. 1: run 1)
- format identifier (e.g. N: netCDF, G: GRIB)
- variable acronym [with level value] (e.g. hur850: relative humidity, 850 hPa)
--> example: MPEH5_COMMIT_1_G_hur850
This model runs continues from the end of the 20th century simulation with aerosol loadings held constant at their year 2000 values, and GHG concentrations fixed at: CO2=367ppm, CH4=1760ppb, N2O=316ppb, CFC11=267pptr, CFC12=535pptr
For this experiment there are 5 ensemble runs available.
For model output data in higher temporal resulution and more variables visit the web page https://esg.llnl.gov:8443/home/publicHomePage.do.
Location(s)
World (global); Latitude: -90.0 to 90.0; Longitude: 0.0 to 360.0
Spatial Coverage
Latitude: -90.0 to 90.0; Longitude: 0.0 to 360.0; Altitude: 0.0 m to 200.0 hPa
Temporal Coverage
16/1/2001 - 16/12/2100 (model time, 365 days per year)
Data Format(s)
netCDF GRIB
Datasize
832680000 Bytes
Contact
PhD Gregory M. Flato
Canadian Centre for Climate Modelling and Analysis
n/a, V8W 2Y2 Victoria, Canada
http://www.cccma.bc.ec.gc.ca
Project
IPCC Data Distribution Centre : Assessment Report Four data sets (IPCC-DDC_AR4)
The Intergovernmental Panel on Climate Change (IPCC) has been established by WMO and
UNEP to assess scientific, technical and socio-economic information, relevant
for the understanding of climate change, its potential impacts and option for adaption
and migration. Projection of future trends for a number of key variables are provided
through this section of the DDC (
http://cera-www.dkrz.de/IPCC_DDC/index.html ).
The SRES scenarios have been constructed to explore future developments in the global
enviromental with special reference to the production of greenhouse gases and aerosol
precursor emission.
A set of four scenario families (A1, A2, B1, B2) have been developed that each of this
storylines describes one possible demographic, polito-economic, societal and
technological future. Model experiments, also using different forcing scenarios,
were calculated at other modeling centres.
The data represent a subset of data sets from the IPCC Model Output Archive at
PCMDI (
http://www-pcmdi.llnl.gov/ipcc/about_ipcc.php).
_
These datasets are available in netCDF and GRIB format.
The dataset names are composed of
- centre/model acronym (e.g. MPEH5: Max-Planck-Institute/Echam5)
- scenario acronym (e.g. SRB1: SRES B1)
- run number (e.g. 1: run 1)
- format identifier (e.g. N: netCDF, G: GRIB)
- variable acronym [with level value] (e.g. hur850: relative humidity, 850 hPa)
--> example: MPEH5_SRB1_1_G_hur850
Supplementary info
More information for this CERA experiment is available
here.
