Solar-J/Cloud-J v7.6c setup core parameters
  6375.0d5 RAD   radius of Earth
     5.0d5 ZZHT  scale ht at top of atmos
   1.050d0 ATAU  factor increase in cloud optical depth (OD) from layer to next below
   0.005d0 ATAU0 minimum cloud OD in uppermost inserted layer
    0.33d0 CLDCOR correlation of cloud overlap between blocks (0.00 = random)
        18 NWBIN  # wavelength bins in uv-vis for J's
        27 NSBIN  # total wavelength bins, including solar-ir
        06 LNRG  correlated cloud overlap in 6 blocks,  =0=Max-Ran at gaps, =3=Max-Ran in 3 alt blocks
        50 NRANDO # of random selections of ICAs to get average
         1 ATM0  Option for spherical corrections: 0=flat 1=sphr 2=refr 3=geom
         3 CLDFLAG
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!       CLDFLAG = 1  :  Clear sky J's
!       CLDFLAG = 2  :  Averaged cloud cover
!       CLDFLAG = 3  :  cloud-fract**3/2, then average cloud cover
!       CLDFLAG = 4  :  ****not used
!       CLDFLAG = 5  :  Random select NRANDO ICA's from all(Independent Column Atmos.)
!       CLDFLAG = 6  :  Use all (up to 4) quadrature cloud cover QCAs (mid-pts of bin)
!       CLDFLAG = 7  :  Use all (up to 4) QCAs (average clouds within each Q-bin)
!       CLDFLAG = 8  :  Calculate J's for ALL ICAs (up to 20,000 per cell!)