IPCC DDC AR4 GFDL-CM2.0 20C3M run1

Geophysical Fluid Dynamics Laboratory/NOAA (GFDL)

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.

Initial conditions for this experiment were taken from 1 January of year 1 of the 1860 control model experiment named CM2Q_Control-1860_d2. Several forcing agents varied during the 140 year duration of the CM2Q-d2_1861-2000-AllForc_h1 experiment in a manner based upon observations and reconstructions for the late 19th and 20th centuries. The time varying forcing agents were atmospheric CO2, CH4, N2O, halons, tropospheric and stratospheric O3, anthropogenic tropospheric sulfates, black and organic carbon, dust, sea salt, volcanic aerosols, solar irradiance, and the distribution of land cover types. The direct effect of tropospheric aerosols is calculated by the model, but not the indirect effects.

For this experiment there are 3 ensemble runs available.

Model output data for CMIP3 in higher temporal resolutions and further variables are available in ESGF at https://esgf-node.llnl.gov/search/cmip3/.
IPCC-DDC_AR4 (IPCC Data Distribution Centre : Fourth Assessment Report data sets)
Spatial Coverage
Longitude 0 to 360 Latitude -90 to 90 Altitude: 0 m to 200 hPa
Temporal Coverage
1861-01-01 to 2000-12-31 (365_day)
Use constraints
Data Catalog
World Data Center for Climate
3.10 GiB (3326020026 Byte)
completely archived
Creation Date
Future Review Date
Cite as
Geophysical Fluid Dynamics Laboratory/NOAA (GFDL) (2005). IPCC DDC AR4 GFDL-CM2.0 20C3M run1. World Data Center for Climate (WDCC) at DKRZ. http://hdl.handle.net/21.14106/45e1c17992feb0fa6fa18abbfbf0cebaae09a26b

[Entry acronym: GFDL_CM2.0_20C3M_1] [Entry id: 2058877]
consistent as the model is
Contact typePersonORCIDInstitute

Is documented by

[1] DOI Gleckler, P. J.; Taylor, K. E.; Doutriaux, C. (2008). Performance metrics for climate models. doi:10.1029/2007JD008972

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