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Metadata for CERA experiment 'ECHO_G_20C3M_2'
Title
IPCC DDC AR4 ECHO-G 20C3M run2
Citation
Legutke, 2007: IPCC DDC AR4 ECHO-G 20C3M run2. World Data Center for Climate. CERA-DB "ECHO_G_20C3M_2"
http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=ECHO_G_20C3M_2
Creation Date
2007-04-04
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 climate of the 20th Century experiment (20C3M).
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. 20C3M: 20C3M)
- 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_20C3M_1_G_hur850
Spinup: 6y coupled spinup with ocean restart files from end of year 299 from a preindustrial control run performed at the FUB; the latter sim. initialized with Levitus 94 (oce). Anthropogenic (GHGs, sulfate aerosol direct and first indirect effects) and natural forcing (solar irradiance and volcanic activity implemented through varying solar constant) are used for the 20C3M simulations.
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
16/1/1860 - 16/12/2000 (model time, 360 days per year)
Data Format(s)
netCDF GRIB
Datasize
516749424 Bytes
Contact
Dr. Stephanie Legutke
Deutsches Klimarechenzentrum
Data Management
Bundesstrasse 55 / Pavillon, 20146 Hamburg, Germany
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.
