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molod |
1.3 |
C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_init_chem.F,v 1.2 2004/06/08 15:09:01 molod Exp $ |
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molod |
1.1 |
C $Name: $ |
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subroutine fizhi_init_chem(mythid,nozlats,nozlevs,ozlats,ozlevs, |
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. ozone,nwatlats,nwatlevs,watlats,watlevs,water, |
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. Nrphys,pressure,n20,methane,co2,cfc11,cfc12,cfc22) |
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C*********************************************************************** |
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C Subroutine fizhi_init_chem - routine to read in the ozone and upper |
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C atmosphere water vapor, and set the methane, n2o and cfc values |
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C |
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C INPUT: |
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C |
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C mythid - thread number (processor number) |
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C |
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C OUTPUT: |
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C |
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C chfr - real array in tile space of land surface type fraction for |
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C each tile [nchp,Nsx,Nsy] |
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C |
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C*********************************************************************** |
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implicit none |
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molod |
1.3 |
#include "CPP_OPTIONS.h" |
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molod |
1.1 |
integer mythid,nozlevs,nozlats,nwatlevs,nwatlats,Nrphys |
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_RL oz(nozlats,nozlevs), water(nwatlats,nwatlevs) |
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_RL ozlats(nozlats), ozlevs(nozlevs) |
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_RL watlats(nwatlats), watlevs(nwatlevs) |
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_RL pressure(Nrphys),methane(Nrphys),n2o(Nrphys) |
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_RL co2,cfc11,cfc12,cfc22 |
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molod |
1.3 |
_RL getcon |
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molod |
1.1 |
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call read_qz (kqz,water,watlats,watlevs,nwatlats,nwatlevs,12) |
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call read_oz (koz,o3,ozlats,ozlevs,nozlats,nozlevs,12) |
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call get_methane_n2o (pressure,Nrphys,n2o,methane) |
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co2 = getcon('CO2' )*1.e-6 |
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cfc11 = getcon('CFC11')*1.e-9 |
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cfc12 = getcon('CFC12')*1.e-9 |
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cfc22 = getcon('CFC22')*1.e-9 |
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RETURN |
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END |
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subroutine read_qz (ku,qz,lats,levs,nlat,nlev,ntime) |
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C*********************************************************************** |
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C PURPOSE |
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C To Read Stratospheric Moisture Data |
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C |
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C ARGUMENTS DESCRIPTION |
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C ku ...... Unit to Read Moisture Data |
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C qz ...... Stratospheric Moisture Data |
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C lats .... Stratospheric Moisture Data Latitudes (degrees) |
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C levs .... Stratospheric Moisture Data Levels (mb) |
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C nlat .... Number of ozone latitudes |
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C nlev .... Number of ozone levels |
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C ntime ... Number of ozone time values |
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C |
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C*********************************************************************** |
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implicit none |
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molod |
1.3 |
#include "CPP_OPTIONS.h" |
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molod |
1.1 |
integer ku,nlat,nlev,ntime |
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_RL qz(nlat,nlev,ntime) |
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molod |
1.3 |
_RL lats(nlat) |
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_RL levs(nlev) |
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molod |
1.1 |
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integer time |
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integer lat |
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integer lev |
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molod |
1.3 |
_RL voltomas |
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molod |
1.1 |
parameter ( voltomas = 0.622e-6 ) |
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rewind ku |
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c Set Moisture Data Latitudes |
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c --------------------------- |
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do lat = 1,nlat |
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lats(lat) = -85. + (lat-1)*10. |
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enddo |
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c Read Moisture Pressure Levels |
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c ----------------------------- |
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read(ku,1000) (levs(lev),lev=1,nlev) |
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c Read Moisture Amounts by Month and Level |
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c ---------------------------------------- |
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do time=1,ntime |
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read (ku,1001) |
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do lat=1,nlat |
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read(ku,1000) (qz(lat,lev,time),lev=1,nlev) |
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enddo |
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enddo |
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c Convert from Volume Mixing Ratio to Mass Mixing Ratio |
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c ----------------------------------------------------- |
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do time = 1,ntime |
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do lev = 1,nlev |
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do lat = 1,nlat |
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qz(lat,lev,time) = qz(lat,lev,time)*voltomas |
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enddo |
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enddo |
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enddo |
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1000 format (3(5x,7(2x,f6.1)/)) |
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1001 format (1x) |
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return |
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end |
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subroutine read_oz (ku,oz,lats,levs,nlat,nlev,ntime) |
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C*********************************************************************** |
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C PURPOSE |
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C To Read Ozone Value |
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C |
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C ARGUMENTS DESCRIPTION |
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C ku ...... Unit to Read Ozone Data |
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C oz ...... Ozone Data |
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C lats .... Ozone Data Latitudes (degrees) |
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C levs .... Ozone Data Levels (mb) |
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C nlat .... Number of ozone latitudes |
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C nlev .... Number of ozone levels |
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C ntime ... Number of ozone time values |
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C |
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C*********************************************************************** |
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implicit none |
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molod |
1.3 |
#include "CPP_OPTIONS.h" |
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molod |
1.1 |
integer ku,nlat,nlev,ntime |
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_RL oz(nlat,nlev,ntime) |
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molod |
1.3 |
_RL*4 o3(nlat) |
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_RL lats(nlat) |
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_RL levs(nlev) |
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molod |
1.1 |
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integer time |
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integer lat |
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integer lev |
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integer nrec |
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molod |
1.3 |
_RL plevs(34) |
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molod |
1.1 |
data plevs/ 0.003, 0.005, 0.007, 0.01, 0.015, 0.02, 0.03, 0.05, |
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. 0.07, 0.1, 0.15, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0, |
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. 3.0, 5.0, 7.0, 10.0, 15.0, 20.0, 30.0, 50.0, 70.0, |
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. 100.0, 150.0, 200.0, 300.0, 500.0, 700.0, 1000.0 / |
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rewind ku |
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c Set Ozone Data Latitudes |
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c ------------------------ |
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do lat = 1,nlat |
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lats(lat) = -90. + (lat-1)*5. |
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enddo |
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c Set Ozone Data Levels |
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c ------------------------ |
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do lev = 1,nlev |
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levs(lev) = plevs(lev) |
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enddo |
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c Read Ozone Amounts by Month and Level |
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c ------------------------------------- |
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close (ku) |
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open (ku, form='unformatted', access='direct', recl=nlat*4) |
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do time=1,ntime |
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do lev=1,nlev |
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nrec = lev+(time-1)*nlev*2 ! Note: 2 quantities in Ozone Dataset |
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read(ku,rec=nrec) o3 |
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do lat=1,nlat |
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oz(lat,nlev-lev+1,time) = o3(lat) |
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enddo |
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enddo |
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enddo |
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close (ku) |
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return |
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end |
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subroutine get_methane_n2o (pres,Nrphys,n2o,methane) |
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C*********************************************************************** |
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C PURPOSE |
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C Compute methane and n2o |
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C |
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C ARGUMENTS DESCRIPTION |
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C |
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C*********************************************************************** |
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C* Climatological Annual and Global Mean Height Data * |
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C*********************************************************************** |
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implicit none |
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molod |
1.3 |
#include "CPP_OPTIONS.h" |
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molod |
1.1 |
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_RL n2o(Nrphys),methane(Nrphys) |
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integer Nrphys |
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_RL pres(Nrphys) |
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molod |
1.3 |
_RL hght(Nrphys), slope,pr1,pr2,hpr1,hpr2 |
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molod |
1.1 |
integer L,L1,L2,lup,ldn |
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molod |
1.3 |
_RL plevc (46), plevz(46) |
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_RL hghtc (46), hghtz(46) |
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molod |
1.1 |
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data plevc /1000.00, 975.00, 950.00, 925.00, 900.00, |
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. 875.00, 850.00, 825.00, 800.00, 750.00, |
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. 700.00, 650.00, 600.00, 550.00, 500.00, |
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. 450.00, 400.00, 350.00, 300.00, 250.00, |
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. 200.00, 150.00, 100.00, 70.00, 50.00, |
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. 40.00, 30.00, 20.00, 10.00, 7.00, |
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. 5.00, 4.00, 3.00, 2.00, 1.00, |
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. 0.70, 0.50, 0.40, 0.30, 0.20, |
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. 0.10, 0.07, 0.05, 0.04, 0.03, |
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. 0.02 / |
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data hghtc/ 0.128733 , 0.316985 , 0.528275 , 0.749515 , 0.976471 , |
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. 1.208910 , 1.446800 , 1.690980 , 1.941630 , 2.463530 , |
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. 3.016200 , 3.603490 , 4.229410 , 4.899870 , 5.622320 , |
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. 6.405940 , 7.263450 , 8.211920 , 9.275540 , 10.49150 , |
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. 11.92420 , 13.70200 , 16.12980 , 18.24120 , 20.26480 , |
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. 21.63100 , 23.41250 , 25.96570 , 30.45890 , 32.85240 , |
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. 35.17360 , 36.75040 , 38.82900 , 41.84600 , 47.15580 , |
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. 49.90100 , 52.46230 , 54.13890 , 56.26340 , 59.17640 , |
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. 63.89980 , 66.20240 , 68.29210 , 69.63550 , 71.32330 , |
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. 73.62110 / |
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do L=1,46 |
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plevz(L) = plevc(47-L) |
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hghtz(L) = hghtc(47-L) |
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enddo |
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C ********************************************************************** |
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C Interpolate Heights to Model Pressures **** |
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C ********************************************************************** |
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do L2 = 1,Nrphys |
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do L1 = 1,46 |
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if( plevz(L1).gt.pres(L2) ) then |
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if( L1.eq.1 ) then |
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lup = 1 |
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ldn = 2 |
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else |
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lup = L1-1 |
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ldn = L1 |
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endif |
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goto 10 |
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endif |
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enddo |
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lup = 45 |
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ldn = 46 |
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10 continue |
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pr1 = plevz(lup) |
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pr2 = plevz(ldn) |
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hpr1 = hghtz(lup) |
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hpr2 = hghtz(ldn) |
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slope = ( hpr1-hpr2 )/( pr1-pr2 ) |
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hght(L2) = hpr2 + ( pres(L2)-pr2 )*slope |
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enddo |
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C ********************************************************************** |
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C Set the profiles of N2O and CH4 based on Bresser and Pawson 1996 **** |
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C ********************************************************************** |
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do L = 1,Nrphys |
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if( hght(L).gt.26. ) then |
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n2o(L) = 120.* exp( (26.- hght(L)) / 5.69 ) * 1.e-9 |
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else if( hght(L).gt.16. ) then |
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n2o(L) = 307.* exp( (16.- hght(L)) /10.47 ) * 1.e-9 |
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else |
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n2o(L) = 307.e-9 |
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endif |
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enddo |
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do L = 1,Nrphys |
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if( hght(L).gt.55. ) then |
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methane(L) = 0.2e-6 |
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else if( hght(L).gt.14. ) then |
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methane(L) = 1.7* exp( (14.- hght(L)) /19.16 ) * 1.e-6 |
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else |
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methane(L) = 1.7e-6 |
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endif |
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enddo |
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return |
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end |
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