C     /==========================================================\
C     | DIC_ABIOTIC.h                                                |
C     | o Carbon Variables                                      |
C     |==========================================================|

       COMMON /CARBON_NEEDS/
     &              AtmospCO2, AtmosP, pH, pCO2, fluxCO2,
     &              pisvel,fice,Silica
      _RL  AtmospCO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  Atmosp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  pH(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  pCO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  fluxCO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  pisvel(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  fice(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  Silica(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)

       COMMON /CARBON_CHEM/
     &                     ak0,ak1,ak2,akw,akb,aks,akf,
     &                     ak1p,ak2p,ak3p,aksi,
     &                     ff,ft,st,bt
      _RL  ak0(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ak1(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ak2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  akw(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  akb(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  aks(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  akf(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ak1p(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ak2p(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ak3p(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  aksi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ff(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  ft(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  st(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL  bt(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)

       COMMON /OXYGEN_CHEM/
     &              oA0,oA1,oA2,oA3,oA4,oA5,
     &              oB0,oB1,oB2,oB3,
     &              oC0       
      _RL oA0,oA1,oA2,oA3,oA4,oA5
      _RL oB0,oB1,oB2,oB3
      _RL oC0


C permil is conversion factor for mol/m3 to mol/kg
C assumes uniform (surface) density
       COMMON /GLOBAL_SURF_MEAN/
     &                          gsm_alk,gsm_s,gsm_t,gsm_dic,
     &                          gsm_c14,permil
      _RL  gsm_alk
      _RL  gsm_s
      _RL  gsm_t
      _RL  gsm_DIC
      _RL  gsm_C14
      _RL  permil

C schmidt number coefficients
      COMMON /SCHMIDT_NO/
     &                    sca1, sca2, sca3, sca4,
     &                    sox1, sox2, sox3, sox4
      _RL  sca1
      _RL  sca2
      _RL  sca3
      _RL  sca4
      _RL  sox1
      _RL  sox2
      _RL  sox3
      _RL  sox4