[775] | 1 | MODULE p4zlys |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4zlys *** |
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| 4 | !! TOP : PISCES |
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| 5 | !!====================================================================== |
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| 6 | !! History : - ! 1988-07 (E. MAIER-REIMER) Original code |
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| 7 | !! - ! 1998 (O. Aumont) additions |
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| 8 | !! - ! 1999 (C. Le Quere) modifications |
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| 9 | !! 1.0 ! 2004 (O. Aumont) modifications |
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| 10 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | #if defined key_pisces |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! 'key_pisces' PISCES bio-model |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | !! p4z_lys : |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | USE oce_trc ! |
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| 19 | USE trp_trc |
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| 20 | USE sms |
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[341] | 21 | |
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[775] | 22 | IMPLICIT NONE |
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| 23 | PRIVATE |
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[339] | 24 | |
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[775] | 25 | PUBLIC p4z_lys ! called in p4zprg.F90 |
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| 26 | |
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| 27 | !!---------------------------------------------------------------------- |
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| 28 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
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| 29 | !! $Header:$ |
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| 30 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 31 | !!---------------------------------------------------------------------- |
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| 32 | |
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| 33 | CONTAINS |
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| 34 | |
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| 35 | SUBROUTINE p4z_lys |
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| 36 | !!--------------------------------------------------------------------- |
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| 37 | !! *** ROUTINE p4z_lys *** |
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| 38 | !! |
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| 39 | !! ** Purpose : CALCULATES DEGREE OF CACO3 SATURATION IN THE WATER |
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| 40 | !! COLUMN, DISSOLUTION/PRECIPITATION OF CACO3 AND LOSS |
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| 41 | !! OF CACO3 TO THE CACO3 SEDIMENT POOL. |
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| 42 | !! |
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| 43 | !! ** Method : - ??? |
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| 44 | !!--------------------------------------------------------------------- |
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| 45 | INTEGER :: ji, jj, jk, jn |
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| 46 | REAL(wp) :: zbot, zalk, zdic, zph, zremco3, zah2 |
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| 47 | REAL(wp) :: zdispot, zfact, zalka |
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| 48 | REAL(wp) :: zomegaca, zexcess, zexcess0 |
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| 49 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zco3 |
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| 50 | !!--------------------------------------------------------------------- |
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| 51 | |
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| 52 | |
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| 53 | ! ------------------------------------------- |
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| 54 | ! COMPUTE [CO3--] and [H+] CONCENTRATIONS |
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| 55 | ! ------------------------------------------- |
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| 56 | |
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| 57 | DO jn = 1, 5 ! BEGIN OF ITERATION |
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| 58 | ! |
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| 59 | DO jk = 1, jpkm1 |
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| 60 | DO jj = 1, jpj |
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| 61 | DO ji = 1, jpi |
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| 62 | |
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| 63 | ! SET DUMMY VARIABLE FOR TOTAL BORATE |
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| 64 | zbot = borat(ji,jj,jk) |
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| 65 | zfact = rhop (ji,jj,jk) / 1000. + rtrn |
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| 66 | |
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| 67 | ! SET DUMMY VARIABLE FOR [H+] |
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| 68 | zph = hi(ji,jj,jk) * tmask(ji,jj,jk) / zfact + ( 1.-tmask(ji,jj,jk) ) * 1.e-9 |
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| 69 | |
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| 70 | ! SET DUMMY VARIABLE FOR [SUM(CO2)]GIVEN |
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| 71 | zdic = trn(ji,jj,jk,jpdic) / zfact |
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| 72 | zalka = trn(ji,jj,jk,jptal) / zfact |
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| 73 | |
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| 74 | ! CALCULATE [ALK]([CO3--], [HCO3-]) |
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| 75 | zalk = zalka - ( akw3(ji,jj,jk) / zph - zph & |
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| 76 | & + zbot / (1.+ zph / akb3(ji,jj,jk) ) ) |
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| 77 | |
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| 78 | ! CALCULATE [H+] and [CO3--] |
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| 79 | zah2 = SQRT( (zdic-zalk)*(zdic-zalk)+ & |
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| 80 | & 4.*(zalk*ak23(ji,jj,jk)/ak13(ji,jj,jk)) & |
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| 81 | & *(2*zdic-zalk)) |
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| 82 | |
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| 83 | zah2=0.5*ak13(ji,jj,jk)/zalk*((zdic-zalk)+zah2) |
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| 84 | zco3(ji,jj,jk) = zalk/(2.+zah2/ak23(ji,jj,jk))*zfact |
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| 85 | |
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| 86 | hi(ji,jj,jk) = zah2*zfact |
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| 87 | |
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| 88 | END DO |
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| 89 | END DO |
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| 90 | END DO |
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| 91 | ! |
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[186] | 92 | END DO |
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[617] | 93 | |
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[775] | 94 | ! --------------------------------------------------------- |
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| 95 | ! CALCULATE DEGREE OF CACO3 SATURATION AND CORRESPONDING |
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| 96 | ! DISSOLOUTION AND PRECIPITATION OF CACO3 (BE AWARE OF |
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| 97 | ! MGCO3) |
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| 98 | ! --------------------------------------------------------- |
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[617] | 99 | |
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[775] | 100 | DO jk = 1, jpkm1 |
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| 101 | DO jj = 1, jpj |
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| 102 | DO ji = 1, jpi |
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[617] | 103 | |
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[775] | 104 | ! DEVIATION OF [CO3--] FROM SATURATION VALUE |
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| 105 | zomegaca = ( calcon * zco3(ji,jj,jk) ) / aksp(ji,jj,jk) |
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| 106 | |
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| 107 | ! SET DEGREE OF UNDER-/SUPERSATURATION |
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| 108 | zexcess0 = MAX( 0., ( 1.- zomegaca ) ) |
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| 109 | zexcess = zexcess0**nca |
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| 110 | |
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| 111 | ! AMOUNT CACO3 (12C) THAT RE-ENTERS SOLUTION |
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| 112 | ! (ACCORDING TO THIS FORMULATION ALSO SOME PARTICULATE |
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| 113 | ! CACO3 GETS DISSOLVED EVEN IN THE CASE OF OVERSATURATION) |
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| 114 | # if defined key_off_degrad |
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| 115 | zdispot = kdca * zexcess * trn(ji,jj,jk,jpcal) * facvol(ji,jj,jk) |
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| 116 | # else |
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| 117 | zdispot = kdca * zexcess * trn(ji,jj,jk,jpcal) |
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| 118 | # endif |
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| 119 | |
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| 120 | ! CHANGE OF [CO3--] , [ALK], PARTICULATE [CACO3], |
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| 121 | ! AND [SUM(CO2)] DUE TO CACO3 DISSOLUTION/PRECIPITATION |
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| 122 | zremco3 = zdispot / rmoss |
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| 123 | zco3(ji,jj,jk) = zco3(ji,jj,jk) + zremco3 * rfact |
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| 124 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) + 2.*zremco3 |
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| 125 | tra(ji,jj,jk,jpcal) = tra(ji,jj,jk,jpcal) - zremco3 |
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| 126 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) + zremco3 |
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| 127 | |
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| 128 | END DO |
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| 129 | END DO |
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[186] | 130 | END DO |
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| 131 | |
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[775] | 132 | # if defined key_trc_dia3d |
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[339] | 133 | trc3d(:,:,:,1) = rhop(:,:,:) |
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[775] | 134 | trc3d(:,:,:,2) = zco3(:,:,:) |
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| 135 | trc3d(:,:,:,3) = aksp(:,:,:) / calcon |
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| 136 | # endif |
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| 137 | ! |
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| 138 | END SUBROUTINE p4z_lys |
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[186] | 139 | |
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[775] | 140 | #else |
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| 141 | !!====================================================================== |
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| 142 | !! Dummy module : No PISCES bio-model |
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| 143 | !!====================================================================== |
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| 144 | CONTAINS |
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| 145 | SUBROUTINE p4z_lys( kt ) ! Empty routine |
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| 146 | INTEGER, INTENT( in ) :: kt |
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| 147 | WRITE(*,*) 'p4z_lys: You should not have seen this print! error?', kt |
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| 148 | END SUBROUTINE p4z_lys |
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| 149 | #endif |
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| 150 | |
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| 151 | !!====================================================================== |
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| 152 | END MODULE p4zlys |
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