[775] | 1 | MODULE p4zmicro |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE p4zmicro *** |
---|
| 4 | !! TOP : PISCES Compute the sources/sinks for microzooplankton |
---|
| 5 | !!====================================================================== |
---|
| 6 | !! History : 1.0 ! 2004 (O. Aumont) Original code |
---|
| 7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
---|
| 8 | !!---------------------------------------------------------------------- |
---|
| 9 | #if defined key_pisces |
---|
| 10 | !!---------------------------------------------------------------------- |
---|
| 11 | !! 'key_pisces' PISCES bio-model |
---|
| 12 | !!---------------------------------------------------------------------- |
---|
| 13 | !! p4z_micro : Compute the sources/sinks for microzooplankton |
---|
| 14 | !!---------------------------------------------------------------------- |
---|
| 15 | USE oce_trc ! |
---|
| 16 | USE trp_trc ! |
---|
| 17 | USE sms ! |
---|
[341] | 18 | |
---|
[775] | 19 | IMPLICIT NONE |
---|
| 20 | PRIVATE |
---|
[186] | 21 | |
---|
[775] | 22 | PUBLIC p4z_micro ! called in p4zbio.F90 |
---|
| 23 | |
---|
| 24 | !!* Substitution |
---|
| 25 | # include "domzgr_substitute.h90" |
---|
| 26 | !!---------------------------------------------------------------------- |
---|
| 27 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
---|
| 28 | !! $Header:$ |
---|
| 29 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
---|
| 30 | !!---------------------------------------------------------------------- |
---|
| 31 | |
---|
| 32 | CONTAINS |
---|
| 33 | |
---|
| 34 | SUBROUTINE p4z_micro |
---|
| 35 | !!--------------------------------------------------------------------- |
---|
| 36 | !! *** ROUTINE p4z_micro *** |
---|
| 37 | !! |
---|
| 38 | !! ** Purpose : Compute the sources/sinks for microzooplankton |
---|
| 39 | !! |
---|
| 40 | !! ** Method : - ??? |
---|
| 41 | !!--------------------------------------------------------------------- |
---|
| 42 | INTEGER :: ji, jj, jk |
---|
| 43 | REAL(wp) :: zcompadi, zcompadi2, zcompaz , zcompaph, zcompapoc |
---|
| 44 | REAL(wp) :: zgraze , zdenom , zdenom2 |
---|
| 45 | REAL(wp) :: zfact , zstep , zinano , zidiat, zipoc |
---|
| 46 | !!--------------------------------------------------------------------- |
---|
| 47 | |
---|
| 48 | zstep = rfact2 / rjjss ! Time step duration for biology |
---|
| 49 | |
---|
| 50 | DO jk = 1, jpkm1 |
---|
| 51 | DO jj = 1, jpj |
---|
| 52 | DO ji = 1, jpi |
---|
| 53 | |
---|
| 54 | zcompaz = MAX( ( trn(ji,jj,jk,jpzoo) - 1.e-9 ), 0.e0 ) |
---|
| 55 | # if defined key_off_degrad |
---|
| 56 | zfact = zstep * tgfunc(ji,jj,jk) * zcompaz *facvol(ji,jj,jk) |
---|
| 57 | # else |
---|
| 58 | zfact = zstep * tgfunc(ji,jj,jk) * zcompaz |
---|
| 59 | # endif |
---|
| 60 | |
---|
| 61 | ! Respiration rates of both zooplankton |
---|
| 62 | ! ------------------------------------- |
---|
| 63 | |
---|
| 64 | respz(ji,jj,jk) = resrat * zfact * ( 1.+ 3.* nitrfac(ji,jj,jk) ) & |
---|
| 65 | & * trn(ji,jj,jk,jpzoo) / ( xkmort + trn(ji,jj,jk,jpzoo) ) |
---|
| 66 | |
---|
| 67 | ! Zooplankton mortality. A square function has been selected with |
---|
| 68 | ! no real reason except that it seems to be more stable and may |
---|
| 69 | ! mimic predation. |
---|
| 70 | ! --------------------------------------------------------------- |
---|
| 71 | |
---|
| 72 | tortz(ji,jj,jk) = mzrat * 1.e6 * zfact * trn(ji,jj,jk,jpzoo) |
---|
| 73 | |
---|
[186] | 74 | END DO |
---|
[775] | 75 | END DO |
---|
| 76 | END DO |
---|
[339] | 77 | |
---|
[775] | 78 | DO jk = 1, jpkm1 |
---|
| 79 | DO jj = 1, jpj |
---|
| 80 | DO ji = 1, jpi |
---|
[186] | 81 | |
---|
[775] | 82 | zcompadi = MAX( ( trn(ji,jj,jk,jpdia) - 1.e-8 ), 0.e0 ) |
---|
| 83 | zcompadi2 = MIN( zcompadi, 5.e-7 ) |
---|
| 84 | zcompaph = MAX( ( trn(ji,jj,jk,jpphy) - 2.e-7 ), 0.e0 ) |
---|
| 85 | zcompapoc = MAX( ( trn(ji,jj,jk,jppoc) - 1.e-8 ), 0.e0 ) |
---|
[186] | 86 | |
---|
[775] | 87 | ! Microzooplankton grazing |
---|
| 88 | ! ------------------------ |
---|
| 89 | zdenom2 = 1./ ( zprefp * zcompaph + zprefc * zcompapoc + zprefd * zcompadi2 + rtrn ) |
---|
[186] | 90 | |
---|
[775] | 91 | zgraze = grazrat * zstep * tgfunc(ji,jj,jk) & |
---|
| 92 | # if defined key_off_degrad |
---|
| 93 | & * facvol(ji,jj,jk) & |
---|
| 94 | # endif |
---|
| 95 | & * trn(ji,jj,jk,jpzoo) |
---|
[186] | 96 | |
---|
[775] | 97 | zinano = zprefp * zcompaph * zdenom2 |
---|
| 98 | zipoc = zprefc * zcompapoc * zdenom2 |
---|
| 99 | zidiat = zprefd * zcompadi2 * zdenom2 |
---|
[186] | 100 | |
---|
[775] | 101 | zdenom = 1./ ( xkgraz + zinano * zcompaph + zipoc * zcompapoc + zidiat * zcompadi2 ) |
---|
[186] | 102 | |
---|
[775] | 103 | grazp (ji,jj,jk) = zgraze * zinano * zcompaph * zdenom |
---|
| 104 | grazm (ji,jj,jk) = zgraze * zipoc * zcompapoc * zdenom |
---|
| 105 | grazsd(ji,jj,jk) = zgraze * zidiat * zcompadi2 * zdenom |
---|
[186] | 106 | |
---|
[775] | 107 | grazpf (ji,jj,jk) = grazp (ji,jj,jk) * trn(ji,jj,jk,jpnfe) / (trn(ji,jj,jk,jpphy) + rtrn) |
---|
[186] | 108 | |
---|
[775] | 109 | grazpch(ji,jj,jk) = grazp (ji,jj,jk) * trn(ji,jj,jk,jpnch) / (trn(ji,jj,jk,jpphy) + rtrn) |
---|
[186] | 110 | |
---|
[775] | 111 | grazmf (ji,jj,jk) = grazm (ji,jj,jk) * trn(ji,jj,jk,jpsfe) / (trn(ji,jj,jk,jppoc) + rtrn) |
---|
| 112 | |
---|
| 113 | grazsf (ji,jj,jk) = grazsd(ji,jj,jk) * trn(ji,jj,jk,jpdfe) / (trn(ji,jj,jk,jpdia) + rtrn) |
---|
| 114 | |
---|
| 115 | grazss (ji,jj,jk) = grazsd(ji,jj,jk) * trn(ji,jj,jk,jpbsi) / (trn(ji,jj,jk,jpdia) + rtrn) |
---|
| 116 | |
---|
| 117 | grazsch(ji,jj,jk) = grazsd(ji,jj,jk) * trn(ji,jj,jk,jpdch) / (trn(ji,jj,jk,jpdia) + rtrn) |
---|
| 118 | |
---|
[186] | 119 | END DO |
---|
[775] | 120 | END DO |
---|
| 121 | END DO |
---|
[186] | 122 | |
---|
[775] | 123 | DO jk = 1, jpkm1 |
---|
| 124 | DO jj = 1, jpj |
---|
| 125 | DO ji = 1, jpi |
---|
[186] | 126 | |
---|
[775] | 127 | ! Various remineralization and excretion terms |
---|
| 128 | ! -------------------------------------------- |
---|
| 129 | |
---|
| 130 | grarem(ji,jj,jk) = ( grazp(ji,jj,jk) + grazm (ji,jj,jk) & |
---|
| 131 | & + grazsd(ji,jj,jk) ) * ( 1.- epsher - unass ) |
---|
| 132 | |
---|
| 133 | grafer(ji,jj,jk) = ( grazpf(ji,jj,jk) + grazsf(ji,jj,jk) & |
---|
| 134 | & + grazmf(ji,jj,jk) ) * ( 1.- epsher - unass ) & |
---|
| 135 | & + ( grazm (ji,jj,jk) * MAX( (trn(ji,jj,jk,jpsfe) / & |
---|
| 136 | & (trn(ji,jj,jk,jppoc) + rtrn) - ferat3), 0.e0 ) & |
---|
| 137 | & + grazp (ji,jj,jk) * MAX( (trn(ji,jj,jk,jpnfe) / & |
---|
| 138 | & (trn(ji,jj,jk,jpphy) + rtrn) - ferat3), 0.e0 ) & |
---|
| 139 | & + grazsd(ji,jj,jk) * MAX( (trn(ji,jj,jk,jpdfe) / & |
---|
| 140 | & (trn(ji,jj,jk,jpdia) + rtrn) - ferat3), 0.e0 ) ) * epsher |
---|
| 141 | |
---|
| 142 | grapoc(ji,jj,jk) = ( grazp(ji,jj,jk) + grazm(ji,jj,jk) + grazsd(ji,jj,jk) ) * unass |
---|
| 143 | |
---|
[186] | 144 | END DO |
---|
[775] | 145 | END DO |
---|
| 146 | END DO |
---|
| 147 | ! |
---|
| 148 | END SUBROUTINE p4z_micro |
---|
| 149 | |
---|
| 150 | #else |
---|
| 151 | !!====================================================================== |
---|
| 152 | !! Dummy module : No PISCES bio-model |
---|
| 153 | !!====================================================================== |
---|
| 154 | CONTAINS |
---|
| 155 | SUBROUTINE p4z_micro ! Empty routine |
---|
| 156 | END SUBROUTINE p4z_micro |
---|
| 157 | #endif |
---|
| 158 | |
---|
| 159 | !!====================================================================== |
---|
| 160 | END MODULE p4zmicro |
---|