| 1 | subroutine moldiffcoeff(dij) |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | c======================================================================= |
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| 5 | c subject: |
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| 6 | c -------- |
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| 7 | c Computing molecular diffusion coefficients |
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| 8 | c following Nair 94 (pg 131) |
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| 9 | c author: MAC 2002 |
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| 10 | c ------ |
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| 11 | c |
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| 12 | c======================================================================= |
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| 13 | #include "dimensions.h" |
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| 14 | #include "dimphys.h" |
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| 15 | #include "callkeys.h" |
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| 16 | #include "comdiurn.h" |
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| 17 | #include "chimiedata.h" |
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| 18 | #include "tracer.h" |
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| 19 | #include "conc.h" |
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| 20 | |
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| 21 | c----------------------------------------------------------------------- |
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| 22 | c Input/Output |
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| 23 | c ------------ |
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| 24 | real dij(ncomptot,ncomptot) |
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| 25 | |
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| 26 | c Local variables: |
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| 27 | c --------------- |
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| 28 | INTEGER nq, n, nn, i,iq |
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| 29 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 30 | c tracer numbering in the molecular diffusion |
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| 31 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 32 | c Atomic oxygen must always be the LAST species of the list as |
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| 33 | c it is the dominant species at high altitudes. |
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| 34 | integer,parameter :: i_co = 1 |
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| 35 | integer,parameter :: i_n2 = 2 |
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| 36 | integer,parameter :: i_o2 = 3 |
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| 37 | integer,parameter :: i_co2 = 4 |
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| 38 | integer,parameter :: i_h2 = 5 |
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| 39 | integer,parameter :: i_h = 6 |
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| 40 | integer,parameter :: i_oh = 7 |
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| 41 | integer,parameter :: i_ho2 = 8 |
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| 42 | integer,parameter :: i_h2o = 9 |
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| 43 | integer,parameter :: i_h2o2 = 10 |
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| 44 | integer,parameter :: i_o1d = 11 |
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| 45 | integer,parameter :: i_o3 = 12 |
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| 46 | integer,parameter :: i_ar = 13 |
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| 47 | integer,parameter :: i_o = 14 |
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| 48 | |
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| 49 | ! Tracer indexes in the GCM: |
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| 50 | integer,save :: g_co2=0 |
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| 51 | integer,save :: g_co=0 |
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| 52 | integer,save :: g_o=0 |
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| 53 | integer,save :: g_o1d=0 |
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| 54 | integer,save :: g_o2=0 |
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| 55 | integer,save :: g_o3=0 |
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| 56 | integer,save :: g_h=0 |
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| 57 | integer,save :: g_h2=0 |
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| 58 | integer,save :: g_oh=0 |
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| 59 | integer,save :: g_ho2=0 |
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| 60 | integer,save :: g_h2o2=0 |
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| 61 | integer,save :: g_n2=0 |
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| 62 | integer,save :: g_ar=0 |
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| 63 | integer,save :: g_h2o=0 |
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| 64 | |
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| 65 | integer,save :: gcmind(ncomptot) |
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| 66 | |
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| 67 | real dnh |
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| 68 | logical,save :: firstcall=.true. |
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| 69 | |
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| 70 | ! Initializations at first call (and some sanity checks) |
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| 71 | if (firstcall) then |
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| 72 | ! identify the indexes of the tracers we'll need |
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| 73 | g_co2=igcm_co2 |
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| 74 | if (g_co2.eq.0) then |
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| 75 | write(*,*) "moldiffcoeff: Error; no CO2 tracer !!!" |
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| 76 | stop |
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| 77 | endif |
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| 78 | g_co=igcm_co |
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| 79 | if (g_co.eq.0) then |
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| 80 | write(*,*) "moldiffcoeff: Error; no CO tracer !!!" |
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| 81 | stop |
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| 82 | endif |
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| 83 | g_o=igcm_o |
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| 84 | if (g_o.eq.0) then |
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| 85 | write(*,*) "moldiffcoeff: Error; no O tracer !!!" |
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| 86 | stop |
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| 87 | endif |
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| 88 | g_o1d=igcm_o1d |
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| 89 | if (g_o1d.eq.0) then |
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| 90 | write(*,*) "moldiffcoeff: Error; no O1D tracer !!!" |
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| 91 | stop |
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| 92 | endif |
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| 93 | g_o2=igcm_o2 |
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| 94 | if (g_o2.eq.0) then |
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| 95 | write(*,*) "moldiffcoeff: Error; no O2 tracer !!!" |
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| 96 | stop |
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| 97 | endif |
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| 98 | g_o3=igcm_o3 |
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| 99 | if (g_o3.eq.0) then |
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| 100 | write(*,*) "moldiffcoeff: Error; no O3 tracer !!!" |
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| 101 | stop |
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| 102 | endif |
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| 103 | g_h=igcm_h |
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| 104 | if (g_h.eq.0) then |
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| 105 | write(*,*) "moldiffcoeff: Error; no H tracer !!!" |
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| 106 | stop |
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| 107 | endif |
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| 108 | g_h2=igcm_h2 |
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| 109 | if (g_h2.eq.0) then |
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| 110 | write(*,*) "moldiffcoeff: Error; no H2 tracer !!!" |
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| 111 | stop |
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| 112 | endif |
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| 113 | g_oh=igcm_oh |
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| 114 | if (g_oh.eq.0) then |
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| 115 | write(*,*) "moldiffcoeff: Error; no OH tracer !!!" |
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| 116 | stop |
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| 117 | endif |
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| 118 | g_ho2=igcm_ho2 |
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| 119 | if (g_ho2.eq.0) then |
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| 120 | write(*,*) "moldiffcoeff: Error; no HO2 tracer !!!" |
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| 121 | stop |
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| 122 | endif |
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| 123 | g_h2o2=igcm_h2o2 |
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| 124 | if (g_h2o2.eq.0) then |
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| 125 | write(*,*) "moldiffcoeff: Error; no H2O2 tracer !!!" |
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| 126 | stop |
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| 127 | endif |
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| 128 | g_n2=igcm_n2 |
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| 129 | if (g_n2.eq.0) then |
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| 130 | write(*,*) "moldiffcoeff: Error; no N2 tracer !!!" |
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| 131 | stop |
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| 132 | endif |
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| 133 | g_ar=igcm_ar |
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| 134 | if (g_ar.eq.0) then |
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| 135 | write(*,*) "moldiffcoeff: Error; no AR tracer !!!" |
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| 136 | stop |
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| 137 | endif |
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| 138 | g_h2o=igcm_h2o_vap |
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| 139 | if (g_h2o.eq.0) then |
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| 140 | write(*,*) "moldiffcoeff: Error; no water vapor tracer !!!" |
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| 141 | stop |
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| 142 | endif |
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| 143 | |
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| 144 | c |
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| 145 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 146 | c fill array to relate local indexes to gcm indexes |
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| 147 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 148 | |
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| 149 | gcmind(i_co) = g_co |
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| 150 | gcmind(i_n2) = g_n2 |
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| 151 | gcmind(i_o2) = g_o2 |
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| 152 | gcmind(i_co2) = g_co2 |
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| 153 | gcmind(i_h2) = g_h2 |
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| 154 | gcmind(i_h) = g_h |
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| 155 | gcmind(i_oh) = g_oh |
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| 156 | gcmind(i_ho2) = g_ho2 |
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| 157 | gcmind(i_h2o) = g_h2o |
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| 158 | gcmind(i_h2o2)= g_h2o2 |
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| 159 | gcmind(i_o1d) = g_o1d |
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| 160 | gcmind(i_o3) = g_o3 |
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| 161 | gcmind(i_o) = g_o |
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| 162 | gcmind(i_ar) = g_ar |
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| 163 | c |
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| 164 | cccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
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| 165 | firstcall= .false. |
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| 166 | endif ! of if (firstcall) |
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| 167 | |
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| 168 | |
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| 169 | dij(i_h2,i_co) = 0.0000651 |
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| 170 | dij(i_h2,i_n2) = 0.0000674 |
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| 171 | dij(i_h2,i_o2) = 0.0000697 |
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| 172 | dij(i_h2,i_co2) = 0.0000550 |
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| 173 | dij(i_h2,i_h2) = 0.0 |
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| 174 | dij(i_h2,i_h) = 0.0 |
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| 175 | dij(i_h2,i_oh) = 0.0 !0003 |
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| 176 | dij(i_h2,i_ho2) = 0.0 !0003 |
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| 177 | dij(i_h2,i_h2o) = 0.0 !0003 |
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| 178 | dij(i_h2,i_h2o2) = 0.0 !0003 |
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| 179 | dij(i_h2,i_o1d) = 0.0 |
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| 180 | dij(i_h2,i_o3) = 0.0 !0003 |
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| 181 | dij(i_h2,i_o) = 0.0 |
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| 182 | dij(i_h2,i_ar) = 0.0 |
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| 183 | |
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| 184 | c dij(i_h,i_o) = 0.0000144 |
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| 185 | dij(i_h,i_o) = 0.000114 |
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| 186 | |
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| 187 | print*,'moldiffcoef: COEFF CALC' |
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| 188 | open(56,file='coeffs.dat',status='unknown') |
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| 189 | do n=1,ncomptot |
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| 190 | if (dij(i_h2,n).gt.0.0) then |
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| 191 | do nn=n,ncomptot |
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| 192 | dij(nn,n)=dij(i_h2,n) |
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| 193 | & *sqrt(mmol(g_h2)/mmol(gcmind(nn))) |
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| 194 | if(n.eq.nn) dij(nn,n)=1.0 |
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| 195 | dij(n,nn)=dij(nn,n) |
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| 196 | enddo |
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| 197 | endif |
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| 198 | if (dij(i_h2,n).eq.0.0) then |
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| 199 | dnh=dij(i_h,i_o)*sqrt(mmol(g_o)/mmol(gcmind(n))) |
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| 200 | do nn=n,ncomptot |
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| 201 | dij(nn,n)=dnh*sqrt(mmol(g_h)/mmol(gcmind(nn))) |
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| 202 | if(n.eq.nn) dij(nn,n)=1.0 |
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| 203 | dij(n,nn)=dij(nn,n) |
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| 204 | enddo |
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| 205 | endif |
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| 206 | enddo |
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| 207 | |
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| 208 | do n=1,ncomptot |
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| 209 | do nn=n,ncomptot |
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| 210 | write(56,*) n,nn,dij(n,nn) !*1.e5/1.381e-23/(273**1.75) |
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| 211 | enddo |
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| 212 | enddo |
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| 213 | close(56) |
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| 214 | |
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| 215 | |
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| 216 | return |
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| 217 | end |
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