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Metadata for CERA experiment 'CGCM3.1_T47_SRESA1B_2'
Title
IPCC DDC AR4 CGCM3.1-T47_(med-res) SRESA1B run2
Citation
Flato, 2007: IPCC DDC AR4 CGCM3.1-T47_(med-res) SRESA1B run2. World Data Center for Climate. CERA-DB "CGCM3.1_T47_SRESA1B_2"
http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=CGCM3.1_T47_SRESA1B_2
Creation Date
2007-05-07
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 SRES A1B experiment.
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. SRA1B: SRES A1B)
- 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_SRA1B_1_G_hur850
This model run continues from the end of the 20th century simulation with GHG and aerosol loadings for the IPCC SRES A1B scenario as tabulated in the IPCC Third Assessment Report, Appendix II. The CO2 concentrations are from the Bern-CC model (Contribution of Working Group I to the Third Assesment Report of IPCC, p808) and the aerosol loadings are from O. Boucher, Laboratoire d\'Optique Atmospherique, France. For years 2101-2300, all GHG concentrations and the aerosol loading are held constant at the values obtained by extrapolation to year 2101.
For this experiment there are 1 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 - 16/12/2200 (model time, 365 days per year)
Data Format(s)
netCDF GRIB
Datasize
1665360000 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.
