| 1 | subroutine calchim(ptimestep,pplay,pplev,pt,pdt,dist_sol,mu0, |
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| 2 | $ zzlev,zzlay,zday,pq,pdq,dqchim,dqschim,dqcloud, |
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| 3 | $ dqscloud,tauref,co2ice, |
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| 4 | $ pu,pdu,pv,pdv,surfdust,surfice) |
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| 5 | c |
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| 6 | implicit none |
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| 7 | c |
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| 8 | c======================================================================= |
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| 9 | c |
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| 10 | c subject: |
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| 11 | c -------- |
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| 12 | c |
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| 13 | c Prepare the call for the photochemical module, and send back the |
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| 14 | c tendencies from photochemistry in the chemical species mass mixing ratios |
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| 15 | c |
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| 16 | c Author: Sebastien Lebonnois (08/11/2002) |
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| 17 | c ------- |
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| 18 | c update 12/06/2003 for water ice clouds and compatibility with dust |
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| 19 | c update 07/2003 for coupling with thermosphere (Monica Angelats-i-Coll) |
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| 20 | c update 03/05/2005 cosmetic changes (Franck Lefevre) |
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| 21 | c update sept. 2008 identify tracers by their names (Ehouarn Millour) |
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| 22 | c update 17/03/2011 synchronize with latest version of chemistry (Franck Lefevre) |
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| 23 | c update 05/12/2011 synchronize with latest version of chemistry (Franck Lefevre) |
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| 24 | c |
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| 25 | c Arguments: |
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| 26 | c ---------- |
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| 27 | c |
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| 28 | c Input: |
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| 29 | c |
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| 30 | c ptimestep timestep (s) |
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| 31 | c pplay(ngridmx,nlayermx) Pressure at the middle of the layers (Pa) |
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| 32 | c pplev(ngridmx,nlayermx+1) Intermediate pressure levels (Pa) |
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| 33 | c pt(ngridmx,nlayermx) Temperature (K) |
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| 34 | c pdt(ngridmx,nlayermx) Temperature tendency (K) |
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| 35 | c pu(ngridmx,nlayermx) u component of the wind (ms-1) |
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| 36 | c pdu(ngridmx,nlayermx) u component tendency (K) |
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| 37 | c pv(ngridmx,nlayermx) v component of the wind (ms-1) |
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| 38 | c pdv(ngridmx,nlayermx) v component tendency (K) |
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| 39 | c dist_sol distance of the sun (AU) |
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| 40 | c mu0(ngridmx) cos of solar zenith angle (=1 when sun at zenith) |
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| 41 | c pq(ngridmx,nlayermx,nqmx) Advected fields, ie chemical species here |
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| 42 | c pdq(ngridmx,nlayermx,nqmx) Previous tendencies on pq |
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| 43 | c tauref(ngridmx) Optical depth at 7 hPa |
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| 44 | c co2ice(ngridmx) co2 ice surface layer (kg.m-2) |
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| 45 | c surfdust(ngridmx,nlayermx) dust surface area (m2/m3) |
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| 46 | c surfice(ngridmx,nlayermx) ice surface area (m2/m3) |
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| 47 | c |
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| 48 | c Output: |
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| 49 | c |
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| 50 | c dqchim(ngridmx,nlayermx,nqmx) ! tendencies on pq due to chemistry |
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| 51 | c dqschim(ngridmx,nqmx) ! tendencies on qsurf |
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| 52 | c |
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| 53 | c======================================================================= |
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| 54 | |
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| 55 | c Declarations : |
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| 56 | c -------------- |
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| 57 | |
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| 58 | #include "dimensions.h" |
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| 59 | #include "dimphys.h" |
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| 60 | #include "chimiedata.h" |
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| 61 | #include "tracer.h" |
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| 62 | #include "comcstfi.h" |
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| 63 | #include "callkeys.h" |
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| 64 | #include "conc.h" |
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| 65 | |
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| 66 | c Arguments : |
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| 67 | c ----------- |
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| 68 | |
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| 69 | c inputs: |
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| 70 | c ------- |
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| 71 | |
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| 72 | real ptimestep |
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| 73 | real pplay(ngridmx,nlayermx) ! pressure at the middle of the layers |
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| 74 | real zzlay(ngridmx,nlayermx) ! pressure at the middle of the layers |
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| 75 | real pplev(ngridmx,nlayermx+1) ! intermediate pressure levels |
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| 76 | real zzlev(ngridmx,nlayermx+1) ! altitude at layer boundaries |
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| 77 | real pt(ngridmx,nlayermx) ! temperature |
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| 78 | real pdt(ngridmx,nlayermx) ! temperature tendency |
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| 79 | real pu(ngridmx,nlayermx) ! u component of the wind (m.s-1) |
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| 80 | real pdu(ngridmx,nlayermx) ! u component tendency |
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| 81 | real pv(ngridmx,nlayermx) ! v component of the wind (m.s-1) |
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| 82 | real pdv(ngridmx,nlayermx) ! v component tendency |
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| 83 | real dist_sol ! distance of the sun (AU) |
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| 84 | real mu0(ngridmx) ! cos of solar zenith angle (=1 when sun at zenith) |
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| 85 | real pq(ngridmx,nlayermx,nqmx) ! tracers mass mixing ratio |
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| 86 | real pdq(ngridmx,nlayermx,nqmx) ! previous tendencies |
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| 87 | real zday ! date (time since Ls=0, in martian days) |
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| 88 | real tauref(ngridmx) ! optical depth at 7 hPa |
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| 89 | real co2ice(ngridmx) ! co2 ice surface layer (kg.m-2) |
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| 90 | real surfdust(ngridmx,nlayermx) ! dust surface area (m2/m3) |
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| 91 | real surfice(ngridmx,nlayermx) ! ice surface area (m2/m3) |
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| 92 | |
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| 93 | c outputs: |
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| 94 | c -------- |
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| 95 | |
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| 96 | real dqchim(ngridmx,nlayermx,nqmx) ! tendencies on pq due to chemistry |
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| 97 | real dqschim(ngridmx,nqmx) ! tendencies on qsurf |
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| 98 | real dqcloud(ngridmx,nlayermx,nqmx)! tendencies on pq due to condensation |
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| 99 | real dqscloud(ngridmx,nqmx) ! tendencies on qsurf |
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| 100 | |
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| 101 | c Local variables : |
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| 102 | c ----------------- |
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| 103 | |
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| 104 | character*20 str20 |
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| 105 | integer ig,l,i,iq |
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| 106 | integer foundswitch, lswitch |
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| 107 | integer ig_vl1 |
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| 108 | real latvl1, lonvl1 |
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| 109 | real zq(ngridmx,nlayermx,nqmx) ! pq+pdq*ptimestep before chemistry |
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| 110 | ! new mole fraction after |
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| 111 | real zt(ngridmx,nlayermx) ! temperature |
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| 112 | real zu(ngridmx,nlayermx) ! u component of the wind |
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| 113 | real zv(ngridmx,nlayermx) ! v component of the wind |
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| 114 | real taucol ! optical depth at 7 hPa |
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| 115 | |
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| 116 | logical depos ! switch for dry deposition |
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| 117 | parameter (depos=.false.) |
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| 118 | c |
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| 119 | c for each column of atmosphere: |
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| 120 | c |
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| 121 | real zpress(nlayermx) ! Pressure (mbar) |
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| 122 | real zdens(nlayermx) ! Density (cm-3) |
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| 123 | real ztemp(nlayermx) ! Temperature (K) |
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| 124 | real zlocal(nlayermx) ! Altitude (km) |
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| 125 | real zycol(nlayermx,nqmx) ! Composition (mole fractions) |
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| 126 | real szacol ! Solar zenith angle |
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| 127 | real surfice1d(nlayermx) ! Ice surface area (cm2/cm3) |
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| 128 | real surfdust1d(nlayermx) ! Dust surface area (cm2/cm3) |
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| 129 | real jo3(nlayermx) ! Photodissociation rate O3->O1D (s-1) |
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| 130 | c |
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| 131 | c for output: |
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| 132 | c |
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| 133 | real jo3_3d(ngridmx,nlayermx) ! Photodissociation rate O3->O1D (s-1) |
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| 134 | |
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| 135 | logical output ! to issue calls to writediagfi and stats |
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| 136 | parameter (output=.true.) ! see at end of routine |
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| 137 | |
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| 138 | logical,save :: firstcall=.true. |
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| 139 | integer,save :: nbq ! number of tracers used in the chemistry |
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| 140 | integer,save :: niq(nqmx) ! array storing the indexes of the tracers |
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| 141 | |
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| 142 | ! index of tracers: |
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| 143 | |
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| 144 | integer,save :: i_co2=0 |
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| 145 | integer,save :: i_co=0 |
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| 146 | integer,save :: i_o=0 |
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| 147 | integer,save :: i_o1d=0 |
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| 148 | integer,save :: i_o2=0 |
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| 149 | integer,save :: i_o3=0 |
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| 150 | integer,save :: i_h=0 |
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| 151 | integer,save :: i_h2=0 |
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| 152 | integer,save :: i_oh=0 |
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| 153 | integer,save :: i_ho2=0 |
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| 154 | integer,save :: i_h2o2=0 |
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| 155 | integer,save :: i_ch4=0 |
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| 156 | integer,save :: i_n2=0 |
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| 157 | integer,save :: i_ar=0 |
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| 158 | integer,save :: i_ice=0 ! water ice |
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| 159 | integer,save :: i_h2o=0 ! water vapour |
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| 160 | c |
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| 161 | c======================================================================= |
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| 162 | c initialization of the chemistry (first call only) |
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| 163 | c======================================================================= |
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| 164 | c |
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| 165 | if (firstcall) then |
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| 166 | c |
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| 167 | if (photochem) then |
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| 168 | print*,'calchim: Read photolysis lookup table' |
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| 169 | call read_phototable |
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| 170 | end if |
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| 171 | |
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| 172 | ! find index of chemical tracers to use |
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| 173 | nbq=0 ! to count number of tracers |
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| 174 | i_co2=igcm_co2 |
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| 175 | if (i_co2.eq.0) then |
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| 176 | write(*,*) "calchim: Error; no CO2 tracer !!!" |
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| 177 | stop |
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| 178 | else |
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| 179 | nbq=nbq+1 |
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| 180 | niq(nbq)=i_co2 |
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| 181 | endif |
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| 182 | i_co=igcm_co |
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| 183 | if (i_co.eq.0) then |
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| 184 | write(*,*) "calchim: Error; no CO tracer !!!" |
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| 185 | stop |
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| 186 | else |
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| 187 | nbq=nbq+1 |
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| 188 | niq(nbq)=i_co |
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| 189 | endif |
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| 190 | i_o=igcm_o |
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| 191 | if (i_o.eq.0) then |
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| 192 | write(*,*) "calchim: Error; no O tracer !!!" |
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| 193 | stop |
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| 194 | else |
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| 195 | nbq=nbq+1 |
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| 196 | niq(nbq)=i_o |
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| 197 | endif |
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| 198 | i_o1d=igcm_o1d |
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| 199 | if (i_o1d.eq.0) then |
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| 200 | write(*,*) "calchim: Error; no O1D tracer !!!" |
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| 201 | stop |
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| 202 | else |
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| 203 | nbq=nbq+1 |
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| 204 | niq(nbq)=i_o1d |
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| 205 | endif |
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| 206 | i_o2=igcm_o2 |
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| 207 | if (i_o2.eq.0) then |
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| 208 | write(*,*) "calchim: Error; no O2 tracer !!!" |
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| 209 | stop |
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| 210 | else |
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| 211 | nbq=nbq+1 |
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| 212 | niq(nbq)=i_o2 |
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| 213 | endif |
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| 214 | i_o3=igcm_o3 |
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| 215 | if (i_o3.eq.0) then |
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| 216 | write(*,*) "calchim: Error; no O3 tracer !!!" |
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| 217 | stop |
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| 218 | else |
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| 219 | nbq=nbq+1 |
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| 220 | niq(nbq)=i_o3 |
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| 221 | endif |
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| 222 | i_h=igcm_h |
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| 223 | if (i_h.eq.0) then |
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| 224 | write(*,*) "calchim: Error; no H tracer !!!" |
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| 225 | stop |
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| 226 | else |
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| 227 | nbq=nbq+1 |
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| 228 | niq(nbq)=i_h |
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| 229 | endif |
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| 230 | i_h2=igcm_h2 |
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| 231 | if (i_h2.eq.0) then |
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| 232 | write(*,*) "calchim: Error; no H2 tracer !!!" |
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| 233 | stop |
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| 234 | else |
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| 235 | nbq=nbq+1 |
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| 236 | niq(nbq)=i_h2 |
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| 237 | endif |
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| 238 | i_oh=igcm_oh |
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| 239 | if (i_oh.eq.0) then |
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| 240 | write(*,*) "calchim: Error; no OH tracer !!!" |
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| 241 | stop |
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| 242 | else |
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| 243 | nbq=nbq+1 |
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| 244 | niq(nbq)=i_oh |
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| 245 | endif |
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| 246 | i_ho2=igcm_ho2 |
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| 247 | if (i_ho2.eq.0) then |
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| 248 | write(*,*) "calchim: Error; no HO2 tracer !!!" |
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| 249 | stop |
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| 250 | else |
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| 251 | nbq=nbq+1 |
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| 252 | niq(nbq)=i_ho2 |
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| 253 | endif |
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| 254 | i_h2o2=igcm_h2o2 |
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| 255 | if (i_h2o2.eq.0) then |
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| 256 | write(*,*) "calchim: Error; no H2O2 tracer !!!" |
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| 257 | stop |
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| 258 | else |
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| 259 | nbq=nbq+1 |
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| 260 | niq(nbq)=i_h2o2 |
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| 261 | endif |
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| 262 | i_ch4=igcm_ch4 |
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| 263 | if (i_ch4.eq.0) then |
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| 264 | write(*,*) "calchim: Error; no CH4 tracer !!!" |
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| 265 | stop |
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| 266 | else |
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| 267 | nbq=nbq+1 |
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| 268 | niq(nbq)=i_ch4 |
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| 269 | endif |
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| 270 | i_n2=igcm_n2 |
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| 271 | if (i_n2.eq.0) then |
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| 272 | write(*,*) "calchim: Error; no N2 tracer !!!" |
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| 273 | stop |
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| 274 | else |
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| 275 | nbq=nbq+1 |
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| 276 | niq(nbq)=i_n2 |
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| 277 | endif |
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| 278 | i_ar=igcm_ar |
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| 279 | if (i_ar.eq.0) then |
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| 280 | write(*,*) "calchim: Error; no AR tracer !!!" |
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| 281 | stop |
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| 282 | else |
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| 283 | nbq=nbq+1 |
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| 284 | niq(nbq)=i_ar |
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| 285 | endif |
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| 286 | i_ice=igcm_h2o_ice |
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| 287 | if (i_ice.eq.0) then |
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| 288 | write(*,*) "calchim: Error; no water ice tracer !!!" |
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| 289 | stop |
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| 290 | else |
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| 291 | nbq=nbq+1 |
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| 292 | niq(nbq)=i_ice |
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| 293 | endif |
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| 294 | i_h2o=igcm_h2o_vap |
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| 295 | if (i_h2o.eq.0) then |
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| 296 | write(*,*) "calchim: Error; no water vapor tracer !!!" |
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| 297 | stop |
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| 298 | else |
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| 299 | nbq=nbq+1 |
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| 300 | niq(nbq)=i_h2o |
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| 301 | endif |
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| 302 | |
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| 303 | write(*,*) 'calchim: found nbq = ',nbq,' tracers' |
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| 304 | write(*,*) ' i_co2 = ',i_co2 |
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| 305 | write(*,*) ' i_co = ',i_co |
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| 306 | write(*,*) ' i_o = ',i_o |
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| 307 | write(*,*) ' i_o1d = ',i_o1d |
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| 308 | write(*,*) ' i_o2 = ',i_o2 |
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| 309 | write(*,*) ' i_o3 = ',i_o3 |
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| 310 | write(*,*) ' i_h = ',i_h |
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| 311 | write(*,*) ' i_h2 = ',i_h2 |
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| 312 | write(*,*) ' i_oh = ',i_oh |
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| 313 | write(*,*) ' i_ho2 = ',i_ho2 |
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| 314 | write(*,*) ' i_h2o2 = ',i_h2o2 |
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| 315 | write(*,*) ' i_ch4 = ',i_ch4 |
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| 316 | write(*,*) ' i_n2 = ',i_n2 |
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| 317 | write(*,*) ' i_ar = ',i_ar |
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| 318 | write(*,*) ' i_ice = ',i_ice |
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| 319 | write(*,*) ' i_h2o = ',i_h2o |
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| 320 | |
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| 321 | firstcall = .false. |
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| 322 | end if ! if (firstcall) |
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| 323 | |
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| 324 | ! Initialize output tendencies to zero (to handle case of tracers which |
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| 325 | ! are not used in the chemistry (e.g. dust)) |
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| 326 | |
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| 327 | dqchim(:,:,:) = 0 |
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| 328 | dqschim(:,:) = 0 |
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| 329 | c |
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| 330 | ! latvl1= 22.27 |
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| 331 | ! lonvl1= -47.94 |
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| 332 | ! ig_vl1= 1+ int( (1.5-(latvl1-90.)*jjm/180.) -2 )*iim + |
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| 333 | ! $ int(1.5+(lonvl1+180)*iim/360.) |
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| 334 | c |
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| 335 | c======================================================================= |
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| 336 | c loop over grid |
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| 337 | c======================================================================= |
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| 338 | c |
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| 339 | do ig = 1,ngridmx |
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| 340 | c |
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| 341 | c local updates |
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| 342 | c |
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| 343 | foundswitch = 0 |
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| 344 | do l = 1,nlayermx |
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| 345 | do i = 1,nbq |
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| 346 | iq = niq(i) ! get tracer index |
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| 347 | zq(ig,l,iq) = pq(ig,l,iq) + pdq(ig,l,iq)*ptimestep |
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| 348 | zycol(l,iq) = zq(ig,l,iq)*mmean(ig,l)/mmol(iq) |
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| 349 | end do |
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| 350 | zt(ig,l) = pt(ig,l) + pdt(ig,l)*ptimestep |
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| 351 | zu(ig,l) = pu(ig,l) + pdu(ig,l)*ptimestep |
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| 352 | zv(ig,l) = pv(ig,l) + pdv(ig,l)*ptimestep |
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| 353 | c |
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| 354 | zpress(l) = pplay(ig,l)/100. |
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| 355 | ztemp(l) = zt(ig,l) |
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| 356 | zdens(l) = zpress(l)/(kb*1.e4*ztemp(l)) |
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| 357 | zlocal(l) = zzlay(ig,l)/1000. |
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| 358 | c |
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| 359 | c surfdust1d and surfice1d: conversion from m2/m3 to cm2/cm3 |
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| 360 | c |
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| 361 | surfdust1d(l) = surfdust(ig,l)*1.e-2 |
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| 362 | surfice1d(l) = surfice(ig,l)*1.e-2 |
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| 363 | c |
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| 364 | c search for switch index between regions |
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| 365 | c |
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| 366 | if (photochem .and. thermochem) then |
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| 367 | if (foundswitch .eq. 0 .and. pplay(ig,l).lt.1.e-3) then |
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| 368 | lswitch = l |
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| 369 | foundswitch=1 |
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| 370 | end if |
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| 371 | end if |
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| 372 | if ( .not. photochem) then |
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| 373 | lswitch = 22 |
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| 374 | end if |
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| 375 | if (.not. thermochem) then |
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| 376 | lswitch = min(50,nlayermx+1) ! FL (original value: 33) |
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| 377 | end if |
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| 378 | c |
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| 379 | end do ! of do l=1,nlayermx |
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| 380 | c |
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| 381 | szacol = acos(mu0(ig))*180./pi |
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| 382 | taucol = tauref(ig) |
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| 383 | c |
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| 384 | c======================================================================= |
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| 385 | c call chemical subroutine |
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| 386 | c======================================================================= |
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| 387 | c |
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| 388 | c chemistry in lower atmosphere |
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| 389 | c |
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| 390 | if (photochem) then |
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| 391 | call photochemistry(lswitch,zycol,szacol,ptimestep, |
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| 392 | $ zpress,ztemp,zdens,dist_sol, |
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| 393 | $ surfdust1d,surfice1d,jo3,taucol) |
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| 394 | end if |
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| 395 | c |
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| 396 | c chemistry in upper atmosphere |
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| 397 | c |
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| 398 | if (thermochem) then |
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| 399 | call chemthermos(ig,lswitch,zycol,ztemp,zdens,zpress, |
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| 400 | $ zlocal,szacol,ptimestep,zday) |
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| 401 | end if |
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| 402 | c |
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| 403 | c dry deposition |
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| 404 | c |
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| 405 | if (depos) then |
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| 406 | call deposition(ig, ig_vl1, pplay, pplev, zzlay, zzlev, |
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| 407 | $ zu, zv, zt, zycol, ptimestep, co2ice) |
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| 408 | end if |
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| 409 | c |
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| 410 | c======================================================================= |
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| 411 | c tendencies |
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| 412 | c======================================================================= |
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| 413 | c |
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| 414 | c must be 0. for water ice: |
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| 415 | c |
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| 416 | if (water) then |
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| 417 | do l = 1,nlayermx |
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| 418 | dqchim(ig,l,i_ice) = 0. |
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| 419 | end do |
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| 420 | end if |
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| 421 | c |
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| 422 | c tendency for CO2 = - sum of others for lower atmosphere |
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| 423 | c tendency for O = - sum of others for upper atmosphere |
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| 424 | c |
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| 425 | do l = 1,nlayermx |
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| 426 | if (l .lt. lswitch) then |
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| 427 | do i=1,nbq |
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| 428 | iq=niq(i) ! get tracer index |
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| 429 | if ((iq.ne.i_co2).and.(iq.ne.i_ice)) then |
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| 430 | dqchim(ig,l,iq) = (zycol(l,iq)*mmol(iq)/mmean(ig,l) |
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| 431 | $ - zq(ig,l,iq))/ptimestep |
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| 432 | else if (iq.eq.i_co2) then |
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| 433 | dqchim(ig,l,iq) = 0. |
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| 434 | end if |
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| 435 | dqschim(ig,iq) = 0. |
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| 436 | end do ! of do i=1,nbq |
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| 437 | |
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| 438 | do i=1,nbq |
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| 439 | iq=niq(i) ! get tracer index |
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| 440 | if (iq.ne.i_co2) then |
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| 441 | dqchim(ig,l,i_co2) = dqchim(ig,l,i_co2) |
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| 442 | $ - dqchim(ig,l,iq) |
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| 443 | end if |
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| 444 | end do |
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| 445 | else if (l .ge. lswitch) then |
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| 446 | do i=1,nbq |
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| 447 | iq=niq(i) ! get tracer index |
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| 448 | if ((iq.ne.i_o).and.(iq.ne.i_ice)) then |
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| 449 | dqchim(ig,l,iq) = (zycol(l,iq)*mmol(iq) |
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| 450 | $ /mmean(ig,l) |
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| 451 | $ - zq(ig,l,iq))/ptimestep |
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| 452 | else if (iq.eq.i_o) then |
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| 453 | dqchim(ig,l,iq) = 0. |
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| 454 | end if |
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| 455 | enddo |
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| 456 | |
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| 457 | do i=1,nbq |
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| 458 | iq=niq(i) ! get tracer index |
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| 459 | if (iq.ne.i_o) then |
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| 460 | dqchim(ig,l,i_o) = dqchim(ig,l,i_o) |
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| 461 | $ - dqchim(ig,l,iq) |
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| 462 | end if |
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| 463 | end do |
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| 464 | end if ! of if (l.lt.lswitch) else if (l.ge.lswitch) |
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| 465 | end do ! of do l = 1,nlayermx |
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| 466 | c |
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| 467 | c condensation of h2o2 |
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| 468 | c |
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| 469 | call perosat(ig,ptimestep,pplev,pplay, |
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| 470 | $ ztemp,zycol,dqcloud,dqscloud) |
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| 471 | c |
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| 472 | c density and j(o3->o1d), for outputs |
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| 473 | c |
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| 474 | do l = 1,nlayermx |
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| 475 | jo3_3d(ig,l) = jo3(l) |
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| 476 | end do |
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| 477 | c |
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| 478 | c======================================================================= |
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| 479 | c end of loop over grid |
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| 480 | c======================================================================= |
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| 481 | c |
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| 482 | end do ! of do ig=1,ngridmx |
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| 483 | c |
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| 484 | c======================================================================= |
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| 485 | c write outputs |
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| 486 | c======================================================================= |
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| 487 | c |
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| 488 | ! value of parameter 'output' to trigger writting of outputs |
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| 489 | ! is set above at the declaration of the variable. |
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| 490 | |
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| 491 | if (output) then |
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| 492 | if (ngridmx .gt. 1) then |
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| 493 | call writediagfi(ngridmx,'jo3','j o3->o1d', |
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| 494 | $ 's-1',3,jo3_3d(1,1)) |
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| 495 | if (callstats) then |
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| 496 | call wstats(ngridmx,'jo3','j o3->o1d', |
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| 497 | $ 's-1',3,jo3_3d(1,1)) |
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| 498 | endif |
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| 499 | end if ! of if (ngridmx.gt.1) |
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| 500 | endif ! of if (output) |
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| 501 | c |
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| 502 | end |
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