GFDL experiment name = CM2.1U-D4_1PctTo2X_I1. PCMDI experiment name =
1%to2x (run1). Initial conditions for this experiment were taken from
1 January of year 1 of the 1860 control model experiment named
CM2.1U_Control-1860_D4. In the CM2.1U-D4_1PctTo2X_I1 experiment
atmospheric CO2 levels were prescribed to increase from their initial
mixing ratio level of 286.05 ppmv at a compounded rate of +1 percent
per year until year 70 (the point of doubling). CO2 levels were held
constant at 572.11 ppmv from year 71 through the end of the 220 year
long experiment. For the entire 220 year duration of the experiment,
all non-CO2 forcing agents (CH4, N2O, halons, tropospheric and
stratospheric O3, tropospheric sulfates, black and organic carbon,
dust, sea salt, solar irradiance, and the distribution of land cover
types) were held constant at values representative of year 1860.
realization = 1
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"
