IPCC DDC AR4 GFDL-CM2.1 PICNTRL run1

Geophysical Fluid Dynamics Laboratory/NOAA (GFDL)

Experiment
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 Pre-industrial
control experiment (picntrl).

These datasets are available in netCDF and GRIB format.

Initial conditions for this experiment were derived from a multi-step process.
First, an atmosphere + land surface model was spun up with forcing agents at levels
representative of the late 20th century. Second, the spun up atmosphere + land surface
model was coupled to an ocean + sea ice model. Initial conditions for sea ice, ocean
potential temperature and salinity were derived from late 20th century observations.
Forcing agents consistent with year 1860 were applied to the coupled model which was
integrated for a ~220 year adjustment period. Year 1 of the archived CM2.1U_Control-1860_D4
experiment data begins at the end of this adjustment period. CM2.1U_Control-1860_D4
forcing agents representative of conditions circa-1860 include the well-mixed greenhouse
gases (CO2, CH4, N2O), tropospheric and stratospheric O3, tropospheric sulfates, black and
organic carbon, dust, sea salt, 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 is only one run 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/.
Project
IPCC-DDC_AR4 (IPCC Data Distribution Centre : Fourth Assessment Report data sets)
Location(s)
World (global)
Spatial Coverage
Longitude 0 to 360 Latitude -90 to 90 Altitude: 0 m to 200 hPa
Temporal Coverage
1-01-01 to 500-12-31 (365_day)
Use constraints
unrestricted
Data Catalog
World Data Center for Climate
Size
9.6 GiB (10310873946 Byte)
Format
GRIB, NetCDF
Status
completely archived
Creation Date
Future Review Date
2031-09-23
Cite as
Geophysical Fluid Dynamics Laboratory/NOAA (GFDL) (2005). IPCC DDC AR4 GFDL-CM2.1 PICNTRL run1. World Data Center for Climate (WDCC) at DKRZ. http://hdl.handle.net/21.14106/ee99e5d27d9a35b54078eb8e18ba0e28aa0c4f4d

BibTeX RIS
[Entry acronym: GFDL_CM2.1_PICNTRL_1] [Entry id: 2062722]
Description
model data
Description
consistent as the model is
Contact typePersonORCIDInstitute
Investigator --Geophysical Fluid Dynamics Laboratory/NOAA
Metadata Nadine Schneider-Max-Planck-Institut fuer Meteorologie (MD)
Metadata Reviewer Dr. Hans Luthardt-Max-Planck-Institut fuer Meteorologie (MD)

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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