C091.R   Atmosphere-Ocean Model - .5%CO2+SO4 Exp   Ra/raid2   98/11/13

C091 is similar to C090 but:
  Tropospheric sulphate aerosols from UKMO are used in radiation.
  Sulphate amount in 1860:  .0526 (kg/m^2)
  Sulphate amount in 1990: 1.8314 (kg/m^2)
  Estimated cooling by sulphate aerosols from 1850 to 1990 is
    -.9 (W/m^2) according to IPCC [1994].
  To cool the planet by 1 (W/m^2) at top of atmosphere, the global
    tropospheric sulphate aerosol optical thickness should be .0357
  Thus, the conversion factor that multiplies sulphate amounts (kg/m^2)
    and obtains optical thicknesses should be:
    .0357 * (.9/1) / (1.8314-.0526) = .01806

C090 is similar to C089 but:
  Observed greenhouse gas amounts are used from 1950 to 1990.
  From 1991 to 2099, CO2 increases 1% compounded, but other greenhouse
    gases remain constant at their 1990 values.

C089 is similar to C088 but:
  Strength of ocean alternating binomial filter is increased to:
    NFILXO=1, NFILYO=1
  Width of Nares Strait = 30000 m
  Greenhouse gases are those of 1950.
  Tropospheric sulfate is that of 1950 with Pattern 1.

Minimum fraction of open ocean: FLEAD = .06
Minimum sea ice thickness: ACE2SI = 182 (kg/m^2)
Subroutines OCONV and STCONV are replaced by KPP vertical mixing
  scheme.

Atmospheric component of C088 is similar to A073d.

Object modules:
C088cM  C089P  C070L  C070D  C089O  C088K  C077hI  C073H  C091R
FFT72   THBAR  FUNTABLE

Data input files:
10=AIC72X46.065  !  atmospheric initial conditions
11=Z72X46N       !  surface frations, topography, and thicknesses
12=RPLK25        !  Planck function table for radiation
13=RTAU.G25      !  gas optical thicknesses for radiation
14=GASINHIS.LP   !  historical greenhouse gas concentrations
16=SULFA5X4.UKM  !  2 tropospheric sulfate loading patterns
17=SULFATE.LP    !  annual sulfate amounts for 2 loading patterns
20=OIC72X46.LEV  !  ocean initial conditions
21=OST72X46.ROB  !  monthly ocean and lake surface temperature
22=OFTABLE.UN    !  tables of ocean functions
23=OPF72X46.L13  !  ocean polar filter coefficients
30=SIIC5X4.065   !  sea ice and lake ice initial conditions
31=SIC72X46.AMI  !  monthly sea ice and lake ice cover
32=SIM72X46.GIS  !  monthly sea ice and lake ice mass
33=SIB72X46.GIS  !  sea ice blocking factor
40=GIIC5X4.065   !  glacial ice initial conditions
41=GIF72X46.073  !  glacial ice downstream mass transport
50=GHIC5X4.065   !  ground hydrology initial conditions
51=VEG72X46.MAT  !  vegetation frations and albedoes
52=SOIL5X4.GIS   !  soil data
53=CDN4X500      !  neutral drag coefficient over land
54=RD72X46a.ASC  !  river direction file and ice shelves
 9=MDec1949.089

Label and Namelist:
C091 (like C090 but annual sulfate aerosols from UKMO are used.)
AD=C2 R=091 AC=A70 BL=015 GH=073 O=088 I=077h
 &INPUTZ
   NFILXO=1, NFILYO=1, IYEAR0=1850,
   QCHECK=f, NDPRNT=-1,12*0,
   NAMDD='Iowa','SBrz','EBrz','Zmbw',
   IJDD = 18,34, 26,16, 28,22, 42,19,
   IYEARI=1950, IDAYI=0,
   IYEARE=2100, IDAYE=0,
   IYEARE=1950, IDAYE=0, IHOURE=1, ISTART=2,
 &END