[3443] | 1 | MODULE p4zsink |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE p4zsink *** |
---|
| 4 | !! TOP : PISCES vertical flux of particulate matter due to gravitational sinking |
---|
| 5 | !!====================================================================== |
---|
| 6 | !! History : 1.0 ! 2004 (O. Aumont) Original code |
---|
| 7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
---|
| 8 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Change aggregation formula |
---|
| 9 | !! 3.5 ! 2012-07 (O. Aumont) Introduce potential time-splitting |
---|
| 10 | !!---------------------------------------------------------------------- |
---|
| 11 | !! p4z_sink : Compute vertical flux of particulate matter due to gravitational sinking |
---|
| 12 | !! p4z_sink_init : Unitialisation of sinking speed parameters |
---|
| 13 | !! p4z_sink_alloc : Allocate sinking speed variables |
---|
| 14 | !!---------------------------------------------------------------------- |
---|
| 15 | USE oce_trc ! shared variables between ocean and passive tracers |
---|
| 16 | USE trc ! passive tracers common variables |
---|
| 17 | USE sms_pisces ! PISCES Source Minus Sink variables |
---|
[10377] | 18 | USE trcsink ! General routine to compute sedimentation |
---|
[3443] | 19 | USE prtctl_trc ! print control for debugging |
---|
| 20 | USE iom ! I/O manager |
---|
| 21 | USE lib_mpp |
---|
| 22 | |
---|
| 23 | IMPLICIT NONE |
---|
| 24 | PRIVATE |
---|
| 25 | |
---|
| 26 | PUBLIC p4z_sink ! called in p4zbio.F90 |
---|
| 27 | PUBLIC p4z_sink_init ! called in trcsms_pisces.F90 |
---|
| 28 | PUBLIC p4z_sink_alloc |
---|
| 29 | |
---|
| 30 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinking, sinking2 !: POC sinking fluxes |
---|
| 31 | ! ! (different meanings depending on the parameterization) |
---|
[7646] | 32 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkingn, sinking2n !: POC sinking fluxes |
---|
| 33 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkingp, sinking2p !: POC sinking fluxes |
---|
[3443] | 34 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkcal, sinksil !: CaCO3 and BSi sinking fluxes |
---|
| 35 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer !: Small BFe sinking fluxes |
---|
| 36 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer2 !: Big iron sinking fluxes |
---|
[7646] | 37 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfep !: Fep sinking fluxes |
---|
[3443] | 38 | |
---|
[4996] | 39 | INTEGER :: ik100 |
---|
[3443] | 40 | |
---|
| 41 | !!---------------------------------------------------------------------- |
---|
[10067] | 42 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
---|
[10069] | 43 | !! $Id$ |
---|
[10068] | 44 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
[3443] | 45 | !!---------------------------------------------------------------------- |
---|
| 46 | CONTAINS |
---|
| 47 | |
---|
| 48 | !!---------------------------------------------------------------------- |
---|
| 49 | !! 'standard sinking parameterisation' ??? |
---|
| 50 | !!---------------------------------------------------------------------- |
---|
| 51 | |
---|
[5385] | 52 | SUBROUTINE p4z_sink ( kt, knt ) |
---|
[3443] | 53 | !!--------------------------------------------------------------------- |
---|
| 54 | !! *** ROUTINE p4z_sink *** |
---|
| 55 | !! |
---|
| 56 | !! ** Purpose : Compute vertical flux of particulate matter due to |
---|
| 57 | !! gravitational sinking |
---|
| 58 | !! |
---|
| 59 | !! ** Method : - ??? |
---|
| 60 | !!--------------------------------------------------------------------- |
---|
[5385] | 61 | INTEGER, INTENT(in) :: kt, knt |
---|
[10377] | 62 | INTEGER :: ji, jj, jk |
---|
[3443] | 63 | CHARACTER (len=25) :: charout |
---|
[10377] | 64 | REAL(wp) :: zmax, zfact |
---|
[9125] | 65 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: zw3d |
---|
| 66 | REAL(wp), ALLOCATABLE, DIMENSION(:,: ) :: zw2d |
---|
[3443] | 67 | !!--------------------------------------------------------------------- |
---|
| 68 | ! |
---|
[9124] | 69 | IF( ln_timing ) CALL timing_start('p4z_sink') |
---|
[7646] | 70 | |
---|
| 71 | ! Initialization of some global variables |
---|
| 72 | ! --------------------------------------- |
---|
[7753] | 73 | prodpoc(:,:,:) = 0. |
---|
| 74 | conspoc(:,:,:) = 0. |
---|
| 75 | prodgoc(:,:,:) = 0. |
---|
| 76 | consgoc(:,:,:) = 0. |
---|
[7646] | 77 | |
---|
[3443] | 78 | ! |
---|
| 79 | ! Sinking speeds of detritus is increased with depth as shown |
---|
| 80 | ! by data and from the coagulation theory |
---|
| 81 | ! ----------------------------------------------------------- |
---|
| 82 | DO jk = 1, jpkm1 |
---|
| 83 | DO jj = 1, jpj |
---|
| 84 | DO ji = 1,jpi |
---|
[7646] | 85 | zmax = MAX( heup_01(ji,jj), hmld(ji,jj) ) |
---|
| 86 | zfact = MAX( 0., gdepw_n(ji,jj,jk+1) - zmax ) / wsbio2scale |
---|
| 87 | wsbio4(ji,jj,jk) = wsbio2 + MAX(0., ( wsbio2max - wsbio2 )) * zfact |
---|
[3443] | 88 | END DO |
---|
| 89 | END DO |
---|
| 90 | END DO |
---|
| 91 | |
---|
| 92 | ! limit the values of the sinking speeds to avoid numerical instabilities |
---|
[7753] | 93 | wsbio3(:,:,:) = wsbio |
---|
[7646] | 94 | |
---|
[3443] | 95 | ! |
---|
| 96 | ! Initializa to zero all the sinking arrays |
---|
| 97 | ! ----------------------------------------- |
---|
[7753] | 98 | sinking (:,:,:) = 0.e0 |
---|
| 99 | sinking2(:,:,:) = 0.e0 |
---|
| 100 | sinkcal (:,:,:) = 0.e0 |
---|
| 101 | sinkfer (:,:,:) = 0.e0 |
---|
| 102 | sinksil (:,:,:) = 0.e0 |
---|
| 103 | sinkfer2(:,:,:) = 0.e0 |
---|
[3443] | 104 | |
---|
| 105 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
---|
| 106 | ! ----------------------------------------------------- |
---|
[10377] | 107 | CALL trc_sink( kt, wsbio3, sinking , jppoc, rfact2 ) |
---|
| 108 | CALL trc_sink( kt, wsbio3, sinkfer , jpsfe, rfact2 ) |
---|
| 109 | CALL trc_sink( kt, wsbio4, sinking2, jpgoc, rfact2 ) |
---|
| 110 | CALL trc_sink( kt, wsbio4, sinkfer2, jpbfe, rfact2 ) |
---|
| 111 | CALL trc_sink( kt, wsbio4, sinksil , jpgsi, rfact2 ) |
---|
| 112 | CALL trc_sink( kt, wsbio4, sinkcal , jpcal, rfact2 ) |
---|
[3443] | 113 | |
---|
[7646] | 114 | IF( ln_p5z ) THEN |
---|
[7753] | 115 | sinkingn (:,:,:) = 0.e0 |
---|
| 116 | sinking2n(:,:,:) = 0.e0 |
---|
| 117 | sinkingp (:,:,:) = 0.e0 |
---|
| 118 | sinking2p(:,:,:) = 0.e0 |
---|
[3443] | 119 | |
---|
[7646] | 120 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
---|
| 121 | ! ----------------------------------------------------- |
---|
[10377] | 122 | CALL trc_sink( kt, wsbio3, sinkingn , jppon, rfact2 ) |
---|
| 123 | CALL trc_sink( kt, wsbio3, sinkingp , jppop, rfact2 ) |
---|
| 124 | CALL trc_sink( kt, wsbio4, sinking2n, jpgon, rfact2 ) |
---|
| 125 | CALL trc_sink( kt, wsbio4, sinking2p, jpgop, rfact2 ) |
---|
[7646] | 126 | ENDIF |
---|
[3443] | 127 | |
---|
[7646] | 128 | IF( ln_ligand ) THEN |
---|
[7753] | 129 | wsfep (:,:,:) = wfep |
---|
[7646] | 130 | ! |
---|
[7753] | 131 | sinkfep(:,:,:) = 0.e0 |
---|
[10377] | 132 | CALL trc_sink( kt, wsfep, sinkfep , jpfep, rfact2 ) |
---|
[7646] | 133 | ENDIF |
---|
[3443] | 134 | |
---|
[4996] | 135 | ! Total carbon export per year |
---|
[5385] | 136 | IF( iom_use( "tcexp" ) .OR. ( ln_check_mass .AND. kt == nitend .AND. knt == nrdttrc ) ) & |
---|
[10314] | 137 | & t_oce_co2_exp = glob_sum( 'p4zsink', ( sinking(:,:,ik100) + sinking2(:,:,ik100) ) * e1e2t(:,:) * tmask(:,:,1) ) |
---|
[3481] | 138 | ! |
---|
[4996] | 139 | IF( lk_iomput ) THEN |
---|
[5385] | 140 | IF( knt == nrdttrc ) THEN |
---|
[9125] | 141 | ALLOCATE( zw2d(jpi,jpj), zw3d(jpi,jpj,jpk) ) |
---|
[4996] | 142 | zfact = 1.e+3 * rfact2r ! conversion from mol/l/kt to mol/m3/s |
---|
| 143 | ! |
---|
| 144 | IF( iom_use( "EPC100" ) ) THEN |
---|
[7753] | 145 | zw2d(:,:) = ( sinking(:,:,ik100) + sinking2(:,:,ik100) ) * zfact * tmask(:,:,1) ! Export of carbon at 100m |
---|
| 146 | CALL iom_put( "EPC100" , zw2d ) |
---|
[4996] | 147 | ENDIF |
---|
| 148 | IF( iom_use( "EPFE100" ) ) THEN |
---|
[7753] | 149 | zw2d(:,:) = ( sinkfer(:,:,ik100) + sinkfer2(:,:,ik100) ) * zfact * tmask(:,:,1) ! Export of iron at 100m |
---|
| 150 | CALL iom_put( "EPFE100" , zw2d ) |
---|
[4996] | 151 | ENDIF |
---|
| 152 | IF( iom_use( "EPCAL100" ) ) THEN |
---|
[7753] | 153 | zw2d(:,:) = sinkcal(:,:,ik100) * zfact * tmask(:,:,1) ! Export of calcite at 100m |
---|
| 154 | CALL iom_put( "EPCAL100" , zw2d ) |
---|
[4996] | 155 | ENDIF |
---|
| 156 | IF( iom_use( "EPSI100" ) ) THEN |
---|
[7753] | 157 | zw2d(:,:) = sinksil(:,:,ik100) * zfact * tmask(:,:,1) ! Export of bigenic silica at 100m |
---|
| 158 | CALL iom_put( "EPSI100" , zw2d ) |
---|
[4996] | 159 | ENDIF |
---|
| 160 | IF( iom_use( "EXPC" ) ) THEN |
---|
[7753] | 161 | zw3d(:,:,:) = ( sinking(:,:,:) + sinking2(:,:,:) ) * zfact * tmask(:,:,:) ! Export of carbon in the water column |
---|
| 162 | CALL iom_put( "EXPC" , zw3d ) |
---|
[4996] | 163 | ENDIF |
---|
| 164 | IF( iom_use( "EXPFE" ) ) THEN |
---|
[7753] | 165 | zw3d(:,:,:) = ( sinkfer(:,:,:) + sinkfer2(:,:,:) ) * zfact * tmask(:,:,:) ! Export of iron |
---|
| 166 | CALL iom_put( "EXPFE" , zw3d ) |
---|
[4996] | 167 | ENDIF |
---|
| 168 | IF( iom_use( "EXPCAL" ) ) THEN |
---|
[7753] | 169 | zw3d(:,:,:) = sinkcal(:,:,:) * zfact * tmask(:,:,:) ! Export of calcite |
---|
| 170 | CALL iom_put( "EXPCAL" , zw3d ) |
---|
[4996] | 171 | ENDIF |
---|
| 172 | IF( iom_use( "EXPSI" ) ) THEN |
---|
[7753] | 173 | zw3d(:,:,:) = sinksil(:,:,:) * zfact * tmask(:,:,:) ! Export of bigenic silica |
---|
| 174 | CALL iom_put( "EXPSI" , zw3d ) |
---|
[4996] | 175 | ENDIF |
---|
| 176 | IF( iom_use( "tcexp" ) ) CALL iom_put( "tcexp" , t_oce_co2_exp * zfact ) ! molC/s |
---|
| 177 | ! |
---|
[9125] | 178 | DEALLOCATE( zw2d, zw3d ) |
---|
[4996] | 179 | ENDIF |
---|
[3443] | 180 | ENDIF |
---|
| 181 | ! |
---|
| 182 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
| 183 | WRITE(charout, FMT="('sink')") |
---|
| 184 | CALL prt_ctl_trc_info(charout) |
---|
| 185 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
| 186 | ENDIF |
---|
| 187 | ! |
---|
[9124] | 188 | IF( ln_timing ) CALL timing_stop('p4z_sink') |
---|
[3443] | 189 | ! |
---|
| 190 | END SUBROUTINE p4z_sink |
---|
| 191 | |
---|
[9124] | 192 | |
---|
[3443] | 193 | SUBROUTINE p4z_sink_init |
---|
| 194 | !!---------------------------------------------------------------------- |
---|
| 195 | !! *** ROUTINE p4z_sink_init *** |
---|
| 196 | !!---------------------------------------------------------------------- |
---|
[4996] | 197 | INTEGER :: jk |
---|
[9124] | 198 | !!---------------------------------------------------------------------- |
---|
| 199 | ! |
---|
[4996] | 200 | ik100 = 10 ! last level where depth less than 100 m |
---|
| 201 | DO jk = jpkm1, 1, -1 |
---|
| 202 | IF( gdept_1d(jk) > 100. ) ik100 = jk - 1 |
---|
| 203 | END DO |
---|
| 204 | IF (lwp) WRITE(numout,*) |
---|
| 205 | IF (lwp) WRITE(numout,*) ' Level corresponding to 100m depth ', ik100 + 1 |
---|
| 206 | IF (lwp) WRITE(numout,*) |
---|
| 207 | ! |
---|
[3481] | 208 | t_oce_co2_exp = 0._wp |
---|
| 209 | ! |
---|
[3443] | 210 | END SUBROUTINE p4z_sink_init |
---|
| 211 | |
---|
| 212 | INTEGER FUNCTION p4z_sink_alloc() |
---|
| 213 | !!---------------------------------------------------------------------- |
---|
| 214 | !! *** ROUTINE p4z_sink_alloc *** |
---|
| 215 | !!---------------------------------------------------------------------- |
---|
[7646] | 216 | INTEGER :: ierr(3) |
---|
[9124] | 217 | !!---------------------------------------------------------------------- |
---|
| 218 | ! |
---|
[7646] | 219 | ierr(:) = 0 |
---|
| 220 | ! |
---|
| 221 | ALLOCATE( sinking(jpi,jpj,jpk) , sinking2(jpi,jpj,jpk) , & |
---|
| 222 | & sinkcal(jpi,jpj,jpk) , sinksil (jpi,jpj,jpk) , & |
---|
| 223 | & sinkfer2(jpi,jpj,jpk) , & |
---|
| 224 | & sinkfer(jpi,jpj,jpk) , STAT=ierr(1) ) |
---|
[3443] | 225 | ! |
---|
[7646] | 226 | IF( ln_ligand ) ALLOCATE( sinkfep(jpi,jpj,jpk) , STAT=ierr(2) ) |
---|
| 227 | |
---|
| 228 | IF( ln_p5z ) ALLOCATE( sinkingn(jpi,jpj,jpk), sinking2n(jpi,jpj,jpk) , & |
---|
| 229 | & sinkingp(jpi,jpj,jpk), sinking2p(jpi,jpj,jpk) , STAT=ierr(3) ) |
---|
| 230 | ! |
---|
| 231 | p4z_sink_alloc = MAXVAL( ierr ) |
---|
[3443] | 232 | IF( p4z_sink_alloc /= 0 ) CALL ctl_warn('p4z_sink_alloc : failed to allocate arrays.') |
---|
| 233 | ! |
---|
| 234 | END FUNCTION p4z_sink_alloc |
---|
| 235 | |
---|
| 236 | !!====================================================================== |
---|
[5656] | 237 | END MODULE p4zsink |
---|