| [57] | 1 | SUBROUTINE initracer(qsurf,co2ice) |
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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 Initialisation related to tracer |
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| 8 | c (transported dust, water, chemical species, ice...) |
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| 9 | c |
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| 10 | c Name of the tracer |
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| 11 | c |
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| 12 | c Test of dimension : |
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| 13 | c Initialise COMMON tracer in tracer.h |
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| 14 | c |
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| 15 | c If water=T : q(iq=nqmx) is the water mass mixing ratio |
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| 16 | c If water=T and iceparty=T : q(iq=nqmx-1) is the ice mass mixing ratio |
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| 17 | |
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| 18 | c If there is transported dust, it uses iq=1 to iq=dustbin |
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| 19 | c If there is no transported dust : dustbin=0 |
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| 20 | c If doubleq=T : q(iq=1) is the dust mass mixing ratio |
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| 21 | c q(iq=2) is the dust number mixing ratio |
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| 22 | |
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| 23 | c If (photochem.or.thermochem) there is "ncomp" chemical species (ncomp |
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| 24 | c is set in aeronomars/chimiedata.h) using the ncomp iq values starting at |
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| 25 | c iq=nqchem_min = dustbin+1 (nqchem_min is defined in inifis.F) |
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| 26 | c |
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| 27 | c |
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| 28 | c author: F.Forget |
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| 29 | c ------ |
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| 30 | c Modifs: Franck Montmessin, Sebastien Lebonnois (june 2003) |
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| 31 | c |
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| 32 | c======================================================================= |
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| 33 | |
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| 34 | |
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| 35 | #include "dimensions.h" |
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| 36 | #include "dimphys.h" |
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| 37 | #include "comcstfi.h" |
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| 38 | #include "callkeys.h" |
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| 39 | #include "tracer.h" |
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| 40 | |
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| 41 | #include "comgeomfi.h" |
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| 42 | #include "watercap.h" |
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| 43 | #include "aerice.h" |
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| 44 | #include "fisice.h" |
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| 45 | #include "chimiedata.h" |
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| 46 | |
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| 47 | |
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| 48 | real qsurf(ngridmx,nqmx) ! tracer on surface (e.g. kg.m-2) |
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| 49 | real co2ice(ngridmx) ! co2 ice mass on surface (e.g. kg.m-2) |
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| 50 | integer iq,ig |
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| 51 | real r0_lift , reff_lift |
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| 52 | |
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| 53 | c----------------------------------------------------------------------- |
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| 54 | c radius(nqmx) ! aerosol particle radius (m) |
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| 55 | c rho_q(nqmx) ! tracer densities (kg.m-3) |
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| 56 | c qext(nqmx) ! Single Scat. Extinction coeff at 0.67 um |
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| 57 | c alpha_lift(nqmx) ! saltation vertical flux/horiz flux ratio (m-1) |
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| 58 | c alpha_devil(nqmx) ! lifting coeeficient by dust devil |
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| 59 | c rho_dust ! Mars dust density |
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| 60 | c rho_ice ! Water ice density |
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| 61 | c doubleq ! if method with mass (iq=1) and number(iq=2) mixing ratio |
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| 62 | c varian ! Characteristic variance of log-normal distribution |
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| 63 | c----------------------------------------------------------------------- |
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| 64 | |
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| 65 | |
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| 66 | c------------------------------------------------------------ |
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| 67 | c Test Dimensions tracers |
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| 68 | c------------------------------------------------------------ |
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| 69 | |
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| 70 | if(photochem.or.thermochem) then |
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| 71 | if (iceparty) then |
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| 72 | if ((nqchem_min+ncomp+1).ne.nqmx) then |
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| 73 | print*,'********* Dimension problem! ********' |
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| 74 | print*,"nqchem_min+ncomp+1).ne.nqmx" |
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| 75 | print*,"ncomp: ",ncomp |
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| 76 | print*,"nqchem_min: ",nqchem_min |
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| 77 | print*,"nqmx: ",nqmx |
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| 78 | print*,'Change ncomp in chimiedata.h' |
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| 79 | endif |
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| 80 | else |
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| 81 | if ((nqchem_min+ncomp).ne.nqmx) then |
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| 82 | print*,'********* Dimension problem! ********' |
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| 83 | print*,"nqchem_min+ncomp).ne.nqmx" |
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| 84 | print*,"ncomp: ",ncomp |
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| 85 | print*,"nqchem_min: ",nqchem_min |
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| 86 | print*,"nqmx: ",nqmx |
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| 87 | print*,'Change ncomp in chimiedata.h' |
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| 88 | STOP |
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| 89 | endif |
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| 90 | endif |
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| 91 | endif |
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| 92 | |
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| 93 | c------------------------------------------------------------ |
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| 94 | c NAME and molar mass of the tracer |
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| 95 | c------------------------------------------------------------ |
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| 96 | |
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| 97 | c noms and mmol vectors: |
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| 98 | if (water) then |
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| 99 | mmol(nqmx) = 18. |
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| 100 | noms(nqmx) = 'h2o' |
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| 101 | end if |
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| 102 | if (iceparty) then |
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| 103 | noms(nqmx-1) = 'ice' |
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| 104 | mmol(nqmx-1) = 18. |
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| 105 | end if |
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| 106 | if(photochem.or.thermochem) then |
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| 107 | do iq=nqchem_min, nqchem_min+ncomp-1 |
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| 108 | noms(iq) = nomchem(iq-nqchem_min+1) |
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| 109 | mmol(iq) = mmolchem(iq-nqchem_min+1) |
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| 110 | enddo |
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| 111 | end if |
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| 112 | if (dustbin.ge.1) then |
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| 113 | do iq=1,dustbin |
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| 114 | noms(iq) = 'dust' |
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| 115 | mmol(iq) = 100. |
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| 116 | enddo |
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| 117 | if (doubleq) then |
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| 118 | noms(1) = 'dust mass mix. ratio' |
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| 119 | noms(dustbin) = 'dust number mix. ratio' |
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| 120 | end if |
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| 121 | end if |
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| 122 | |
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| 123 | c Simulation of CO2 + neutral gaz |
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| 124 | if ((dustbin.eq.0).and.(.not.water)) then |
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| 125 | noms(1) = 'co2' |
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| 126 | mmol(1) = 44 |
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| 127 | if (nqmx.eq.2)then |
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| 128 | noms(nqmx) = 'Ar_N2' |
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| 129 | mmol(nqmx) = 30 |
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| 130 | end if |
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| 131 | end if |
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| 132 | |
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| 133 | |
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| 134 | c------------------------------------------------------------ |
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| 135 | c Initialisation tracers .... |
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| 136 | c------------------------------------------------------------ |
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| 137 | call zerophys(nqmx,rho_q) |
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| 138 | |
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| 139 | rho_dust=2500. ! Mars dust density (kg.m-3) |
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| 140 | rho_ice=920. ! Water ice density (kg.m-3) |
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| 141 | |
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| 142 | if (doubleq) then |
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| 143 | c "doubleq" technique |
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| 144 | c ------------------- |
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| 145 | c (transport of mass and number mixing ratio) |
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| 146 | c iq=1: Q mass mixing ratio, iq=2: N number mixing ratio |
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| 147 | |
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| 148 | if( (nqmx.lt.2).or.(water.and.(nqmx.lt.3)) ) then |
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| 149 | write(*,*) 'nqmx is too low : nqmx=', nqmx |
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| 150 | write(*,*) 'water= ',water,' doubleq= ',doubleq |
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| 151 | end if |
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| 152 | |
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| 153 | varian=0.637 ! Characteristic variance |
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| 154 | qext(1)=3.04 ! reference extinction at 0.67 um for ref dust |
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| 155 | qext(2)=3.04 ! reference extinction at 0.67 um for ref dust |
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| 156 | rho_q(1)=rho_dust |
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| 157 | rho_q(2)=rho_dust |
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| 158 | |
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| 159 | c Intermediate calcul for computing geometric mean radius r0 |
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| 160 | c as a function of mass and number mixing ratio Q and N |
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| 161 | c (r0 = (r3n_q * Q/ N) |
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| 162 | r3n_q = exp(-4.5*varian**2)*(3./4.)/(pi*rho_dust) |
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| 163 | |
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| 164 | c Intermediate calcul for computing effective radius reff |
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| 165 | c from geometric mean radius r0 |
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| 166 | c (reff = ref_r0 * r0) |
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| 167 | ref_r0 = exp(2.5*varian**2) |
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| 168 | |
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| 169 | c lifted dust : |
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| 170 | c ''''''''''' |
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| 171 | reff_lift = 3.e-6 ! Effective radius of lifted dust (m) |
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| 172 | alpha_devil(1)=9.e-9 ! dust devil lift mass coeff |
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| 173 | alpha_lift(1)=3.0e-15 ! Lifted mass coeff |
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| 174 | |
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| 175 | r0_lift = reff_lift/ref_r0 |
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| 176 | alpha_devil(2)= r3n_q * alpha_devil(1)/r0_lift**3 |
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| 177 | alpha_lift(2)= r3n_q * alpha_lift(1)/r0_lift**3 |
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| 178 | |
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| 179 | c Not used: |
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| 180 | radius(1) = 0. |
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| 181 | radius(2) = 0. |
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| 182 | |
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| 183 | else |
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| 184 | |
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| 185 | if (dustbin.gt.1) then |
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| 186 | print*,'ATTENTION:', |
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| 187 | $ ' properties of dust need input in initracer !!!' |
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| 188 | stop |
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| 189 | |
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| 190 | else if (dustbin.eq.1) then |
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| 191 | |
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| 192 | c This will be used for 1 dust particle size: |
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| 193 | c ------------------------------------------ |
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| 194 | radius(1)=3.e-6 |
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| 195 | Qext(1)=3.04 |
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| 196 | alpha_lift(1)=0.0e-6 |
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| 197 | alpha_devil(1)=7.65e-9 |
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| 198 | qextrhor(1)= (3./4.)*Qext(1) / (rho_dust*radius(1)) |
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| 199 | rho_q(1)=rho_dust |
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| 200 | |
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| 201 | endif |
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| 202 | end if ! (doubleq) |
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| 203 | |
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| 204 | c Initialization for photochemistry: |
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| 205 | c --------------------------------- |
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| 206 | if (photochem) then |
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| 207 | do iq=nqchem_min,nqmx |
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| 208 | radius(iq)=0. |
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| 209 | Qext(iq)=0. |
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| 210 | alpha_lift(iq) =0. |
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| 211 | alpha_devil(iq)=0. |
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| 212 | qextrhor(iq)= 0. |
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| 213 | enddo |
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| 214 | endif |
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| 215 | |
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| 216 | c Initialization for water vapor |
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| 217 | c ------------------------------ |
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| 218 | if(water) then |
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| 219 | radius(nqmx)=0. |
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| 220 | Qext(nqmx)=0. |
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| 221 | alpha_lift(nqmx) =0. |
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| 222 | alpha_devil(nqmx)=0. |
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| 223 | qextrhor(nqmx)= 0. |
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| 224 | |
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| 225 | c "Dryness coefficient" controlling the evaporation and |
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| 226 | c sublimation from the ground water ice (close to 1) |
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| 227 | c HERE, the goal is to correct for the fact |
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| 228 | c that the simulated permanent water ice polar caps |
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| 229 | c is larger than the actual cap and the atmospheric |
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| 230 | c opacity not always realistic. |
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| 231 | |
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| 232 | do ig=1,ngridmx |
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| 233 | if (ngridmx.ne.1) watercaptag(ig)=.false. |
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| 234 | dryness(ig) = 1. |
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| 235 | if (activice) pclc(ig)=1. |
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| 236 | enddo |
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| 237 | |
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| 238 | IF (caps) THEN |
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| 239 | c Perennial H20 north cap defined by watercaptag=true (allows surface to be |
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| 240 | c hollowed by sublimation in vdifc). |
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| 241 | c Cloud area fraction (pclc) is defined here. |
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| 242 | do ig=1,ngridmx |
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| 243 | if (lati(ig)*180./pi.gt.84) then |
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| 244 | if (ngridmx.ne.1) watercaptag(ig)=.true. |
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| 245 | dryness(ig) = 1. |
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| 246 | if (activice)then |
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| 247 | pclc(ig)=1. |
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| 248 | print*,'Cloud area ratio : ',pclc(ig),' at lat ' |
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| 249 | $ ,lati(ig)*180./pi |
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| 250 | endif |
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| 251 | c Use the following cap definition for high spatial resolution (latitudinal bin <= 5 deg) |
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| 252 | c if (lati(ig)*180./pi.lt.85.and.long(ig).ge.0) then |
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| 253 | c if (ngridmx.ne.1) watercaptag(ig)=.true. |
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| 254 | c pclc(ig)=.3 |
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| 255 | c dryness(ig) = 1. |
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| 256 | c print*,'Cloud area ratio : ',pclc(ig),' at lat ' |
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| 257 | c endif |
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| 258 | c if (lati(ig)*180./pi.ge.85) then |
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| 259 | c if (ngridmx.ne.1) watercaptag(ig)=.true. |
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| 260 | c dryness(ig) = 1. |
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| 261 | c pclc(ig)=.3 |
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| 262 | c print*,'Cloud area ratio : ',pclc(ig),' at lat ' |
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| 263 | c endif |
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| 264 | endif ! (lati>80 deg) |
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| 265 | end do ! (ngridmx) |
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| 266 | ENDIF ! (caps) |
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| 267 | |
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| 268 | if(iceparty.and.nqmx.ge.2) then |
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| 269 | radius(nqmx-1)=3.e-6 |
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| 270 | rho_q(nqmx-1)=rho_ice |
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| 271 | Qext(nqmx-1)=0. |
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| 272 | alpha_lift(nqmx-1) =0. |
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| 273 | alpha_devil(nqmx-1)=0. |
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| 274 | if (activice) then |
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| 275 | radius(nqmx-1)=rcrystal |
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| 276 | Qext(nqmx-1)=qrefice |
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| 277 | endif |
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| 278 | qextrhor(nqmx-1)= (3./4.)*Qext(nqmx-1) |
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| 279 | $ / (rho_ice*radius(nqmx-1)) |
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| 280 | elseif(iceparty.and.nqmx.lt.2) then |
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| 281 | write(*,*) 'nqmx is too low : nqmx=', nqmx |
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| 282 | write(*,*) 'water= ',water,' iceparty= ',iceparty |
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| 283 | endif |
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| 284 | |
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| 285 | end if ! (water) |
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| 286 | |
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| 287 | c Output for records: |
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| 288 | c ~~~~~~~~~~~~~~~~~~ |
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| 289 | write(*,*) |
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| 290 | Write(*,*) '******** initracer : dust transport parameters :' |
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| 291 | write(*,*) 'alpha_lift = ', alpha_lift |
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| 292 | write(*,*) 'alpha_devil = ', alpha_devil |
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| 293 | write(*,*) 'radius = ', radius |
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| 294 | if(doubleq) then |
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| 295 | write(*,*) 'reff_lift (um) = ', reff_lift |
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| 296 | write(*,*) 'size distribution variance = ', varian |
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| 297 | write(*,*) 'r3n_q , ref_r0 : ', r3n_q , ref_r0 |
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| 298 | end if |
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| 299 | write(*,*) 'Qext = ', qext |
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| 300 | write(*,*) |
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| 301 | |
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| 302 | end |
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