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jscott |
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#include "ctrparam.h" |
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! ========================================================== |
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! |
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! CHEMOCEANCO2.F: Subroutine for deduce CO2 amount caused by |
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! ocean uptake of MIT Global Chemistry Model |
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! ---------------------------------------------------------- |
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! |
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! Author: Chien Wang |
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! MIT Joint Program on Science and Policy |
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! of Global Change |
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! |
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! ---------------------------------------------------------- |
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! |
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! Revision History: |
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! |
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! When Who What |
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! ---- ---------- ------- |
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! 102596 Chien Wang rev. |
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! 080100 Chien Wang repack based on CliChem3 & add cpp |
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! |
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! ========================================================== |
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! ============================== |
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subroutine chemoceanco2 (fco2) |
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! ============================== |
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#include "chem_para" |
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#include "chem_com" |
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#include "BD2G04.COM" |
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dimension fco2(nlat) !flux toward ocean of co2 in mole(C) |
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! ------------------------------------------------------------ |
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#if ( defined CPL_CHEM) && ( defined CPL_OCEANCO2 ) |
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xconv = 44.e6 !from mole(C) to 10^-9 kg(CO2) |
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c---- |
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i = 1 |
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c 052295: |
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ktop = 2 |
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#if ( N_LAT == 24 ) |
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do j=3,nlat ! throwout 2 south pole points |
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#endif |
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#if ( N_LAT == 46 ) |
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do j=4,nlat ! throwout 3 south pole points |
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#endif |
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c |
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c Calculate total mass of air and CO2: |
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c |
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tmass = 0.0 !Total air mass in kg |
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xmass = 0.0 !Total co2 mass in 10^-9 kg |
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do k=1,ktop |
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tmass = tmass + airmass(i,j,k) |
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xmass = xmass |
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& + airmass(i,j,k)*zco2(i,j,k) |
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enddo |
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tmass1 = 1./tmass |
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c |
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c Convert flux from mole(C) to ppb(CO2) in mass: |
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c |
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yamount = fco2(j)*xconv |
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c |
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c Map CO2 sink into two layer: |
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c |
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xemi = max(0.0, (xmass - yamount)) |
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& * tmass1 !ppbm |
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do k=1,ktop |
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zco2(i,j,k) = xemi |
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enddo |
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enddo |
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#endif |
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return |
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end |
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