GFDL experiment name = CM2.1U-D4_1860-2000-AllForc_H2. PCMDI
experiment name = 20C3M (run1). Initial conditions for this experiment
were taken from 1 January of year 41 of the 1860 control model
experiment named CM2.1U_Control-1860_D4. Several forcing agents varied
during the 140 year duration of the CM2.1U-D4_1860-2000-AllForc_H2
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,
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.
realization = 2
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"