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gfdl's home page > data portal > deccen coupled climate model > CM2.1 data > metadata: CM2.1U_Control-1860_D4
metadata: CM2.1U_Control-1860_D4
PCMDI REQUESTED METADATA |
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institution attribute for all experiments | institution = "NOAA GFDL (US Dept of Commerce / NOAA / Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA)" ; | |
source attribute for all experiments | source = "GFDL_CM2.1 (2004): atmosphere: AM2.1 (am2p13fv, M45L24); ocean: OM3.1 (mom4p1p7_om3p5, tripolar360x200L50); sea ice: SIS; land: LM2; infrastructure: FMS preK release" ; | |
contact attribute for all experiments | contact = "GFDL.Climate.Model.Info@noaa.gov" ; | |
project_id attribute for all experiments | project_id = "IPCC Fourth Assessment and US CCSP Projects" ; | |
references attribute for all experiments | references = "The GFDL Data Portal (http://nomads.gfdl.noaa.gov/) provides access to NOAA/GFDL\'s publicly available model input and output data sets. From this web site one can view and download data sets and documentation, including those related to the GFDL CM2.1 model experiments run for the IPCC\'s 4th Assessment Report and the US CCSP." ; | |
attributes for individual experiment CM2.1U_Control-1860_D4 PIcntr (run1) |
title
= "GFDL CM2.1, PIcntr (run1) pre-industrial control
experiment output for IPCC AR4 and US CCSP" ;
comment = "GFDL experiment name = CM2.1U_Control-1860_D4. PCMDI experiment name = PIcntrl (run1). 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." ; realization = 1 ; experiment_id = "pre-industrial control experiment" ; |
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