[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 | #if defined key_pisces |
---|
| 12 | !!---------------------------------------------------------------------- |
---|
| 13 | !! p4z_sink : Compute vertical flux of particulate matter due to gravitational sinking |
---|
| 14 | !! p4z_sink_init : Unitialisation of sinking speed parameters |
---|
| 15 | !! p4z_sink_alloc : Allocate sinking speed variables |
---|
| 16 | !!---------------------------------------------------------------------- |
---|
| 17 | USE oce_trc ! shared variables between ocean and passive tracers |
---|
| 18 | USE trc ! passive tracers common variables |
---|
| 19 | USE sms_pisces ! PISCES Source Minus Sink variables |
---|
| 20 | USE prtctl_trc ! print control for debugging |
---|
| 21 | USE iom ! I/O manager |
---|
| 22 | USE lib_mpp |
---|
| 23 | |
---|
| 24 | IMPLICIT NONE |
---|
| 25 | PRIVATE |
---|
| 26 | |
---|
| 27 | PUBLIC p4z_sink ! called in p4zbio.F90 |
---|
| 28 | PUBLIC p4z_sink_init ! called in trcsms_pisces.F90 |
---|
| 29 | PUBLIC p4z_sink_alloc |
---|
| 30 | |
---|
| 31 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wsbio3 !: POC sinking speed |
---|
| 32 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wsbio4 !: GOC sinking speed |
---|
| 33 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wscal !: Calcite and BSi sinking speeds |
---|
| 34 | |
---|
| 35 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinking, sinking2 !: POC sinking fluxes |
---|
| 36 | ! ! (different meanings depending on the parameterization) |
---|
| 37 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkcal, sinksil !: CaCO3 and BSi sinking fluxes |
---|
| 38 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer !: Small BFe sinking fluxes |
---|
| 39 | #if ! defined key_kriest |
---|
| 40 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer2 !: Big iron sinking fluxes |
---|
| 41 | #endif |
---|
| 42 | |
---|
[4996] | 43 | INTEGER :: ik100 |
---|
[3443] | 44 | |
---|
| 45 | #if defined key_kriest |
---|
[4147] | 46 | REAL(wp) :: xkr_sfact !: Sinking factor |
---|
| 47 | REAL(wp) :: xkr_stick !: Stickiness |
---|
| 48 | REAL(wp) :: xkr_nnano !: Nbr of cell in nano size class |
---|
| 49 | REAL(wp) :: xkr_ndiat !: Nbr of cell in diatoms size class |
---|
| 50 | REAL(wp) :: xkr_nmicro !: Nbr of cell in microzoo size class |
---|
| 51 | REAL(wp) :: xkr_nmeso !: Nbr of cell in mesozoo size class |
---|
| 52 | REAL(wp) :: xkr_naggr !: Nbr of cell in aggregates size class |
---|
[3443] | 53 | |
---|
| 54 | REAL(wp) :: xkr_frac |
---|
| 55 | |
---|
| 56 | REAL(wp), PUBLIC :: xkr_dnano !: Size of particles in nano pool |
---|
| 57 | REAL(wp), PUBLIC :: xkr_ddiat !: Size of particles in diatoms pool |
---|
| 58 | REAL(wp), PUBLIC :: xkr_dmicro !: Size of particles in microzoo pool |
---|
| 59 | REAL(wp), PUBLIC :: xkr_dmeso !: Size of particles in mesozoo pool |
---|
| 60 | REAL(wp), PUBLIC :: xkr_daggr !: Size of particles in aggregates pool |
---|
| 61 | REAL(wp), PUBLIC :: xkr_wsbio_min !: min vertical particle speed |
---|
| 62 | REAL(wp), PUBLIC :: xkr_wsbio_max !: max vertical particle speed |
---|
| 63 | |
---|
| 64 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: xnumm !: maximum number of particles in aggregates |
---|
| 65 | #endif |
---|
| 66 | |
---|
| 67 | !!---------------------------------------------------------------------- |
---|
| 68 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
---|
| 69 | !! $Id: p4zsink.F90 3160 2011-11-20 14:27:18Z cetlod $ |
---|
| 70 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
---|
| 71 | !!---------------------------------------------------------------------- |
---|
| 72 | CONTAINS |
---|
| 73 | |
---|
| 74 | #if ! defined key_kriest |
---|
| 75 | !!---------------------------------------------------------------------- |
---|
| 76 | !! 'standard sinking parameterisation' ??? |
---|
| 77 | !!---------------------------------------------------------------------- |
---|
| 78 | |
---|
[5385] | 79 | SUBROUTINE p4z_sink ( kt, knt ) |
---|
[3443] | 80 | !!--------------------------------------------------------------------- |
---|
| 81 | !! *** ROUTINE p4z_sink *** |
---|
| 82 | !! |
---|
| 83 | !! ** Purpose : Compute vertical flux of particulate matter due to |
---|
| 84 | !! gravitational sinking |
---|
| 85 | !! |
---|
| 86 | !! ** Method : - ??? |
---|
| 87 | !!--------------------------------------------------------------------- |
---|
[5385] | 88 | INTEGER, INTENT(in) :: kt, knt |
---|
[3443] | 89 | INTEGER :: ji, jj, jk, jit |
---|
| 90 | INTEGER :: iiter1, iiter2 |
---|
| 91 | REAL(wp) :: zagg1, zagg2, zagg3, zagg4 |
---|
| 92 | REAL(wp) :: zagg , zaggfe, zaggdoc, zaggdoc2, zaggdoc3 |
---|
| 93 | REAL(wp) :: zfact, zwsmax, zmax, zstep |
---|
| 94 | CHARACTER (len=25) :: charout |
---|
[4996] | 95 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zw3d |
---|
| 96 | REAL(wp), POINTER, DIMENSION(:,: ) :: zw2d |
---|
[3443] | 97 | !!--------------------------------------------------------------------- |
---|
| 98 | ! |
---|
| 99 | IF( nn_timing == 1 ) CALL timing_start('p4z_sink') |
---|
| 100 | ! |
---|
| 101 | ! Sinking speeds of detritus is increased with depth as shown |
---|
| 102 | ! by data and from the coagulation theory |
---|
| 103 | ! ----------------------------------------------------------- |
---|
| 104 | DO jk = 1, jpkm1 |
---|
| 105 | DO jj = 1, jpj |
---|
| 106 | DO ji = 1,jpi |
---|
| 107 | zmax = MAX( heup(ji,jj), hmld(ji,jj) ) |
---|
[6140] | 108 | zfact = MAX( 0., gdepw_n(ji,jj,jk+1) - zmax ) / 5000._wp |
---|
[3443] | 109 | wsbio4(ji,jj,jk) = wsbio2 + ( 200.- wsbio2 ) * zfact |
---|
| 110 | END DO |
---|
| 111 | END DO |
---|
| 112 | END DO |
---|
| 113 | |
---|
| 114 | ! limit the values of the sinking speeds to avoid numerical instabilities |
---|
| 115 | wsbio3(:,:,:) = wsbio |
---|
| 116 | wscal (:,:,:) = wsbio4(:,:,:) |
---|
| 117 | ! |
---|
| 118 | ! OA This is (I hope) a temporary solution for the problem that may |
---|
| 119 | ! OA arise in specific situation where the CFL criterion is broken |
---|
| 120 | ! OA for vertical sedimentation of particles. To avoid this, a time |
---|
| 121 | ! OA splitting algorithm has been coded. A specific maximum |
---|
| 122 | ! OA iteration number is provided and may be specified in the namelist |
---|
| 123 | ! OA This is to avoid very large iteration number when explicit free |
---|
| 124 | ! OA surface is used (for instance). When niter?max is set to 1, |
---|
| 125 | ! OA this computation is skipped. The crude old threshold method is |
---|
| 126 | ! OA then applied. This also happens when niter exceeds nitermax. |
---|
| 127 | IF( MAX( niter1max, niter2max ) == 1 ) THEN |
---|
| 128 | iiter1 = 1 |
---|
| 129 | iiter2 = 1 |
---|
| 130 | ELSE |
---|
| 131 | iiter1 = 1 |
---|
| 132 | iiter2 = 1 |
---|
| 133 | DO jk = 1, jpkm1 |
---|
| 134 | DO jj = 1, jpj |
---|
| 135 | DO ji = 1, jpi |
---|
| 136 | IF( tmask(ji,jj,jk) == 1) THEN |
---|
[6140] | 137 | zwsmax = 0.5 * e3t_n(ji,jj,jk) / xstep |
---|
[3443] | 138 | iiter1 = MAX( iiter1, INT( wsbio3(ji,jj,jk) / zwsmax ) ) |
---|
| 139 | iiter2 = MAX( iiter2, INT( wsbio4(ji,jj,jk) / zwsmax ) ) |
---|
| 140 | ENDIF |
---|
| 141 | END DO |
---|
| 142 | END DO |
---|
| 143 | END DO |
---|
| 144 | IF( lk_mpp ) THEN |
---|
| 145 | CALL mpp_max( iiter1 ) |
---|
| 146 | CALL mpp_max( iiter2 ) |
---|
| 147 | ENDIF |
---|
| 148 | iiter1 = MIN( iiter1, niter1max ) |
---|
| 149 | iiter2 = MIN( iiter2, niter2max ) |
---|
| 150 | ENDIF |
---|
| 151 | |
---|
| 152 | DO jk = 1,jpkm1 |
---|
| 153 | DO jj = 1, jpj |
---|
| 154 | DO ji = 1, jpi |
---|
| 155 | IF( tmask(ji,jj,jk) == 1 ) THEN |
---|
[6140] | 156 | zwsmax = 0.5 * e3t_n(ji,jj,jk) / xstep |
---|
[3443] | 157 | wsbio3(ji,jj,jk) = MIN( wsbio3(ji,jj,jk), zwsmax * FLOAT( iiter1 ) ) |
---|
| 158 | wsbio4(ji,jj,jk) = MIN( wsbio4(ji,jj,jk), zwsmax * FLOAT( iiter2 ) ) |
---|
| 159 | ENDIF |
---|
| 160 | END DO |
---|
| 161 | END DO |
---|
| 162 | END DO |
---|
| 163 | |
---|
| 164 | ! Initializa to zero all the sinking arrays |
---|
| 165 | ! ----------------------------------------- |
---|
| 166 | sinking (:,:,:) = 0.e0 |
---|
| 167 | sinking2(:,:,:) = 0.e0 |
---|
| 168 | sinkcal (:,:,:) = 0.e0 |
---|
| 169 | sinkfer (:,:,:) = 0.e0 |
---|
| 170 | sinksil (:,:,:) = 0.e0 |
---|
| 171 | sinkfer2(:,:,:) = 0.e0 |
---|
| 172 | |
---|
| 173 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
---|
| 174 | ! ----------------------------------------------------- |
---|
| 175 | DO jit = 1, iiter1 |
---|
| 176 | CALL p4z_sink2( wsbio3, sinking , jppoc, iiter1 ) |
---|
| 177 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe, iiter1 ) |
---|
| 178 | END DO |
---|
| 179 | |
---|
| 180 | DO jit = 1, iiter2 |
---|
| 181 | CALL p4z_sink2( wsbio4, sinking2, jpgoc, iiter2 ) |
---|
| 182 | CALL p4z_sink2( wsbio4, sinkfer2, jpbfe, iiter2 ) |
---|
| 183 | CALL p4z_sink2( wsbio4, sinksil , jpgsi, iiter2 ) |
---|
| 184 | CALL p4z_sink2( wscal , sinkcal , jpcal, iiter2 ) |
---|
| 185 | END DO |
---|
| 186 | |
---|
| 187 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
---|
| 188 | ! --------------------------------------------------- |
---|
| 189 | DO jk = 1, jpkm1 |
---|
| 190 | DO jj = 1, jpj |
---|
| 191 | DO ji = 1, jpi |
---|
| 192 | ! |
---|
| 193 | zstep = xstep |
---|
| 194 | # if defined key_degrad |
---|
| 195 | zstep = zstep * facvol(ji,jj,jk) |
---|
| 196 | # endif |
---|
| 197 | zfact = zstep * xdiss(ji,jj,jk) |
---|
| 198 | ! Part I : Coagulation dependent on turbulence |
---|
[5385] | 199 | zagg1 = 25.9 * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
---|
| 200 | zagg2 = 4452. * zfact * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
---|
[3443] | 201 | |
---|
| 202 | ! Part II : Differential settling |
---|
| 203 | |
---|
| 204 | ! Aggregation of small into large particles |
---|
[5385] | 205 | zagg3 = 47.1 * zstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jpgoc) |
---|
| 206 | zagg4 = 3.3 * zstep * trb(ji,jj,jk,jppoc) * trb(ji,jj,jk,jppoc) |
---|
[3443] | 207 | |
---|
| 208 | zagg = zagg1 + zagg2 + zagg3 + zagg4 |
---|
[5385] | 209 | zaggfe = zagg * trb(ji,jj,jk,jpsfe) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
---|
[3443] | 210 | |
---|
| 211 | ! Aggregation of DOC to POC : |
---|
| 212 | ! 1st term is shear aggregation of DOC-DOC |
---|
| 213 | ! 2nd term is shear aggregation of DOC-POC |
---|
| 214 | ! 3rd term is differential settling of DOC-POC |
---|
[5385] | 215 | zaggdoc = ( ( 0.369 * 0.3 * trb(ji,jj,jk,jpdoc) + 102.4 * trb(ji,jj,jk,jppoc) ) * zfact & |
---|
| 216 | & + 2.4 * zstep * trb(ji,jj,jk,jppoc) ) * 0.3 * trb(ji,jj,jk,jpdoc) |
---|
[3443] | 217 | ! transfer of DOC to GOC : |
---|
| 218 | ! 1st term is shear aggregation |
---|
| 219 | ! 2nd term is differential settling |
---|
[5385] | 220 | zaggdoc2 = ( 3.53E3 * zfact + 0.1 * zstep ) * trb(ji,jj,jk,jpgoc) * 0.3 * trb(ji,jj,jk,jpdoc) |
---|
[3443] | 221 | ! tranfer of DOC to POC due to brownian motion |
---|
[5385] | 222 | zaggdoc3 = ( 5095. * trb(ji,jj,jk,jppoc) + 114. * 0.3 * trb(ji,jj,jk,jpdoc) ) *zstep * 0.3 * trb(ji,jj,jk,jpdoc) |
---|
[3443] | 223 | |
---|
| 224 | ! Update the trends |
---|
| 225 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zagg + zaggdoc + zaggdoc3 |
---|
| 226 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zagg + zaggdoc2 |
---|
| 227 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
---|
| 228 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
---|
| 229 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
---|
| 230 | ! |
---|
| 231 | END DO |
---|
| 232 | END DO |
---|
| 233 | END DO |
---|
| 234 | |
---|
[4996] | 235 | |
---|
| 236 | ! Total carbon export per year |
---|
[5385] | 237 | IF( iom_use( "tcexp" ) .OR. ( ln_check_mass .AND. kt == nitend .AND. knt == nrdttrc ) ) & |
---|
[4996] | 238 | & t_oce_co2_exp = glob_sum( ( sinking(:,:,ik100) + sinking2(:,:,ik100) ) * e1e2t(:,:) * tmask(:,:,1) ) |
---|
[3481] | 239 | ! |
---|
[4996] | 240 | IF( lk_iomput ) THEN |
---|
[5385] | 241 | IF( knt == nrdttrc ) THEN |
---|
[4996] | 242 | CALL wrk_alloc( jpi, jpj, zw2d ) |
---|
| 243 | CALL wrk_alloc( jpi, jpj, jpk, zw3d ) |
---|
| 244 | zfact = 1.e+3 * rfact2r ! conversion from mol/l/kt to mol/m3/s |
---|
| 245 | ! |
---|
| 246 | IF( iom_use( "EPC100" ) ) THEN |
---|
| 247 | zw2d(:,:) = ( sinking(:,:,ik100) + sinking2(:,:,ik100) ) * zfact * tmask(:,:,1) ! Export of carbon at 100m |
---|
| 248 | CALL iom_put( "EPC100" , zw2d ) |
---|
| 249 | ENDIF |
---|
| 250 | IF( iom_use( "EPFE100" ) ) THEN |
---|
| 251 | zw2d(:,:) = ( sinkfer(:,:,ik100) + sinkfer2(:,:,ik100) ) * zfact * tmask(:,:,1) ! Export of iron at 100m |
---|
| 252 | CALL iom_put( "EPFE100" , zw2d ) |
---|
| 253 | ENDIF |
---|
| 254 | IF( iom_use( "EPCAL100" ) ) THEN |
---|
| 255 | zw2d(:,:) = sinkcal(:,:,ik100) * zfact * tmask(:,:,1) ! Export of calcite at 100m |
---|
| 256 | CALL iom_put( "EPCAL100" , zw2d ) |
---|
| 257 | ENDIF |
---|
| 258 | IF( iom_use( "EPSI100" ) ) THEN |
---|
| 259 | zw2d(:,:) = sinksil(:,:,ik100) * zfact * tmask(:,:,1) ! Export of bigenic silica at 100m |
---|
| 260 | CALL iom_put( "EPSI100" , zw2d ) |
---|
| 261 | ENDIF |
---|
| 262 | IF( iom_use( "EXPC" ) ) THEN |
---|
| 263 | zw3d(:,:,:) = ( sinking(:,:,:) + sinking2(:,:,:) ) * zfact * tmask(:,:,:) ! Export of carbon in the water column |
---|
| 264 | CALL iom_put( "EXPC" , zw3d ) |
---|
| 265 | ENDIF |
---|
| 266 | IF( iom_use( "EXPFE" ) ) THEN |
---|
| 267 | zw3d(:,:,:) = ( sinkfer(:,:,:) + sinkfer2(:,:,:) ) * zfact * tmask(:,:,:) ! Export of iron |
---|
| 268 | CALL iom_put( "EXPFE" , zw3d ) |
---|
| 269 | ENDIF |
---|
| 270 | IF( iom_use( "EXPCAL" ) ) THEN |
---|
| 271 | zw3d(:,:,:) = sinkcal(:,:,:) * zfact * tmask(:,:,:) ! Export of calcite |
---|
| 272 | CALL iom_put( "EXPCAL" , zw3d ) |
---|
| 273 | ENDIF |
---|
| 274 | IF( iom_use( "EXPSI" ) ) THEN |
---|
| 275 | zw3d(:,:,:) = sinksil(:,:,:) * zfact * tmask(:,:,:) ! Export of bigenic silica |
---|
| 276 | CALL iom_put( "EXPSI" , zw3d ) |
---|
| 277 | ENDIF |
---|
| 278 | IF( iom_use( "tcexp" ) ) CALL iom_put( "tcexp" , t_oce_co2_exp * zfact ) ! molC/s |
---|
| 279 | ! |
---|
| 280 | CALL wrk_dealloc( jpi, jpj, zw2d ) |
---|
| 281 | CALL wrk_dealloc( jpi, jpj, jpk, zw3d ) |
---|
| 282 | ENDIF |
---|
| 283 | ELSE |
---|
| 284 | IF( ln_diatrc ) THEN |
---|
| 285 | zfact = 1.e3 * rfact2r |
---|
| 286 | trc2d(:,:,jp_pcs0_2d + 4) = sinking (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 287 | trc2d(:,:,jp_pcs0_2d + 5) = sinking2(:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 288 | trc2d(:,:,jp_pcs0_2d + 6) = sinkfer (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 289 | trc2d(:,:,jp_pcs0_2d + 7) = sinkfer2(:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 290 | trc2d(:,:,jp_pcs0_2d + 8) = sinksil (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 291 | trc2d(:,:,jp_pcs0_2d + 9) = sinkcal (:,:,ik100) * zfact * tmask(:,:,1) |
---|
[3443] | 292 | ENDIF |
---|
| 293 | ENDIF |
---|
| 294 | ! |
---|
| 295 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
| 296 | WRITE(charout, FMT="('sink')") |
---|
| 297 | CALL prt_ctl_trc_info(charout) |
---|
| 298 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
| 299 | ENDIF |
---|
| 300 | ! |
---|
| 301 | IF( nn_timing == 1 ) CALL timing_stop('p4z_sink') |
---|
| 302 | ! |
---|
| 303 | END SUBROUTINE p4z_sink |
---|
| 304 | |
---|
| 305 | SUBROUTINE p4z_sink_init |
---|
| 306 | !!---------------------------------------------------------------------- |
---|
| 307 | !! *** ROUTINE p4z_sink_init *** |
---|
| 308 | !!---------------------------------------------------------------------- |
---|
[4996] | 309 | INTEGER :: jk |
---|
[3481] | 310 | |
---|
[4996] | 311 | ik100 = 10 ! last level where depth less than 100 m |
---|
| 312 | DO jk = jpkm1, 1, -1 |
---|
| 313 | IF( gdept_1d(jk) > 100. ) ik100 = jk - 1 |
---|
| 314 | END DO |
---|
| 315 | IF (lwp) WRITE(numout,*) |
---|
| 316 | IF (lwp) WRITE(numout,*) ' Level corresponding to 100m depth ', ik100 + 1 |
---|
| 317 | IF (lwp) WRITE(numout,*) |
---|
| 318 | ! |
---|
[3481] | 319 | t_oce_co2_exp = 0._wp |
---|
| 320 | ! |
---|
[3443] | 321 | END SUBROUTINE p4z_sink_init |
---|
| 322 | |
---|
| 323 | #else |
---|
| 324 | !!---------------------------------------------------------------------- |
---|
| 325 | !! 'Kriest sinking parameterisation' key_kriest ??? |
---|
| 326 | !!---------------------------------------------------------------------- |
---|
| 327 | |
---|
[5385] | 328 | SUBROUTINE p4z_sink ( kt, knt ) |
---|
[3443] | 329 | !!--------------------------------------------------------------------- |
---|
| 330 | !! *** ROUTINE p4z_sink *** |
---|
| 331 | !! |
---|
| 332 | !! ** Purpose : Compute vertical flux of particulate matter due to |
---|
| 333 | !! gravitational sinking - Kriest parameterization |
---|
| 334 | !! |
---|
| 335 | !! ** Method : - ??? |
---|
| 336 | !!--------------------------------------------------------------------- |
---|
| 337 | ! |
---|
[5385] | 338 | INTEGER, INTENT(in) :: kt, knt |
---|
[3443] | 339 | ! |
---|
| 340 | INTEGER :: ji, jj, jk, jit, niter1, niter2 |
---|
| 341 | REAL(wp) :: zagg1, zagg2, zagg3, zagg4, zagg5, zfract, zaggsi, zaggsh |
---|
| 342 | REAL(wp) :: zagg , zaggdoc, zaggdoc1, znumdoc |
---|
| 343 | REAL(wp) :: znum , zeps, zfm, zgm, zsm |
---|
| 344 | REAL(wp) :: zdiv , zdiv1, zdiv2, zdiv3, zdiv4, zdiv5 |
---|
| 345 | REAL(wp) :: zval1, zval2, zval3, zval4 |
---|
[4996] | 346 | REAL(wp) :: zfact |
---|
[3443] | 347 | INTEGER :: ik1 |
---|
| 348 | CHARACTER (len=25) :: charout |
---|
| 349 | REAL(wp), POINTER, DIMENSION(:,:,:) :: znum3d |
---|
[4996] | 350 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zw3d |
---|
| 351 | REAL(wp), POINTER, DIMENSION(:,: ) :: zw2d |
---|
[3443] | 352 | !!--------------------------------------------------------------------- |
---|
| 353 | ! |
---|
| 354 | IF( nn_timing == 1 ) CALL timing_start('p4z_sink') |
---|
| 355 | ! |
---|
| 356 | CALL wrk_alloc( jpi, jpj, jpk, znum3d ) |
---|
| 357 | ! |
---|
| 358 | ! Initialisation of variables used to compute Sinking Speed |
---|
| 359 | ! --------------------------------------------------------- |
---|
| 360 | |
---|
| 361 | znum3d(:,:,:) = 0.e0 |
---|
| 362 | zval1 = 1. + xkr_zeta |
---|
| 363 | zval2 = 1. + xkr_zeta + xkr_eta |
---|
| 364 | zval3 = 1. + xkr_eta |
---|
| 365 | |
---|
| 366 | ! Computation of the vertical sinking speed : Kriest et Evans, 2000 |
---|
| 367 | ! ----------------------------------------------------------------- |
---|
| 368 | |
---|
| 369 | DO jk = 1, jpkm1 |
---|
| 370 | DO jj = 1, jpj |
---|
| 371 | DO ji = 1, jpi |
---|
| 372 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
---|
[5385] | 373 | znum = trb(ji,jj,jk,jppoc) / ( trb(ji,jj,jk,jpnum) + rtrn ) / xkr_massp |
---|
[3443] | 374 | ! -------------- To avoid sinking speed over 50 m/day ------- |
---|
| 375 | znum = MIN( xnumm(jk), znum ) |
---|
| 376 | znum = MAX( 1.1 , znum ) |
---|
| 377 | znum3d(ji,jj,jk) = znum |
---|
| 378 | !------------------------------------------------------------ |
---|
| 379 | zeps = ( zval1 * znum - 1. )/ ( znum - 1. ) |
---|
| 380 | zfm = xkr_frac**( 1. - zeps ) |
---|
| 381 | zgm = xkr_frac**( zval1 - zeps ) |
---|
| 382 | zdiv = MAX( 1.e-4, ABS( zeps - zval2 ) ) * SIGN( 1., ( zeps - zval2 ) ) |
---|
| 383 | zdiv1 = zeps - zval3 |
---|
| 384 | wsbio3(ji,jj,jk) = xkr_wsbio_min * ( zeps - zval1 ) / zdiv & |
---|
| 385 | & - xkr_wsbio_max * zgm * xkr_eta / zdiv |
---|
| 386 | wsbio4(ji,jj,jk) = xkr_wsbio_min * ( zeps-1. ) / zdiv1 & |
---|
| 387 | & - xkr_wsbio_max * zfm * xkr_eta / zdiv1 |
---|
| 388 | IF( znum == 1.1) wsbio3(ji,jj,jk) = wsbio4(ji,jj,jk) |
---|
| 389 | ENDIF |
---|
| 390 | END DO |
---|
| 391 | END DO |
---|
| 392 | END DO |
---|
| 393 | |
---|
| 394 | wscal(:,:,:) = MAX( wsbio3(:,:,:), 30._wp ) |
---|
| 395 | |
---|
| 396 | ! INITIALIZE TO ZERO ALL THE SINKING ARRAYS |
---|
| 397 | ! ----------------------------------------- |
---|
| 398 | |
---|
| 399 | sinking (:,:,:) = 0.e0 |
---|
| 400 | sinking2(:,:,:) = 0.e0 |
---|
| 401 | sinkcal (:,:,:) = 0.e0 |
---|
| 402 | sinkfer (:,:,:) = 0.e0 |
---|
| 403 | sinksil (:,:,:) = 0.e0 |
---|
| 404 | |
---|
| 405 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
---|
| 406 | ! ----------------------------------------------------- |
---|
| 407 | |
---|
| 408 | niter1 = niter1max |
---|
| 409 | niter2 = niter2max |
---|
| 410 | |
---|
| 411 | DO jit = 1, niter1 |
---|
| 412 | CALL p4z_sink2( wsbio3, sinking , jppoc, niter1 ) |
---|
| 413 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe, niter1 ) |
---|
| 414 | CALL p4z_sink2( wscal , sinksil , jpgsi, niter1 ) |
---|
| 415 | CALL p4z_sink2( wscal , sinkcal , jpcal, niter1 ) |
---|
| 416 | END DO |
---|
| 417 | |
---|
| 418 | DO jit = 1, niter2 |
---|
| 419 | CALL p4z_sink2( wsbio4, sinking2, jpnum, niter2 ) |
---|
| 420 | END DO |
---|
| 421 | |
---|
| 422 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
---|
| 423 | ! --------------------------------------------------- |
---|
| 424 | |
---|
| 425 | zval1 = 1. + xkr_zeta |
---|
| 426 | zval2 = 1. + xkr_eta |
---|
| 427 | zval3 = 3. + xkr_eta |
---|
| 428 | zval4 = 4. + xkr_eta |
---|
| 429 | |
---|
| 430 | DO jk = 1,jpkm1 |
---|
| 431 | DO jj = 1,jpj |
---|
| 432 | DO ji = 1,jpi |
---|
| 433 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
---|
| 434 | |
---|
[5385] | 435 | znum = trb(ji,jj,jk,jppoc)/(trb(ji,jj,jk,jpnum)+rtrn) / xkr_massp |
---|
[3443] | 436 | !-------------- To avoid sinking speed over 50 m/day ------- |
---|
| 437 | znum = min(xnumm(jk),znum) |
---|
| 438 | znum = MAX( 1.1,znum) |
---|
| 439 | !------------------------------------------------------------ |
---|
| 440 | zeps = ( zval1 * znum - 1.) / ( znum - 1.) |
---|
| 441 | zdiv = MAX( 1.e-4, ABS( zeps - zval3) ) * SIGN( 1., zeps - zval3 ) |
---|
| 442 | zdiv1 = MAX( 1.e-4, ABS( zeps - 4. ) ) * SIGN( 1., zeps - 4. ) |
---|
| 443 | zdiv2 = zeps - 2. |
---|
| 444 | zdiv3 = zeps - 3. |
---|
| 445 | zdiv4 = zeps - zval2 |
---|
| 446 | zdiv5 = 2.* zeps - zval4 |
---|
| 447 | zfm = xkr_frac**( 1.- zeps ) |
---|
| 448 | zsm = xkr_frac**xkr_eta |
---|
| 449 | |
---|
| 450 | ! Part I : Coagulation dependant on turbulence |
---|
| 451 | ! ---------------------------------------------- |
---|
| 452 | |
---|
[5385] | 453 | zagg1 = 0.163 * trb(ji,jj,jk,jpnum)**2 & |
---|
[3443] | 454 | & * 2.*( (zfm-1.)*(zfm*xkr_mass_max**3-xkr_mass_min**3) & |
---|
| 455 | & * (zeps-1)/zdiv1 + 3.*(zfm*xkr_mass_max-xkr_mass_min) & |
---|
| 456 | & * (zfm*xkr_mass_max**2-xkr_mass_min**2) & |
---|
| 457 | & * (zeps-1.)**2/(zdiv2*zdiv3)) |
---|
[5385] | 458 | zagg2 = 2*0.163*trb(ji,jj,jk,jpnum)**2*zfm* & |
---|
[3443] | 459 | & ((xkr_mass_max**3+3.*(xkr_mass_max**2 & |
---|
| 460 | & *xkr_mass_min*(zeps-1.)/zdiv2 & |
---|
| 461 | & +xkr_mass_max*xkr_mass_min**2*(zeps-1.)/zdiv3) & |
---|
| 462 | & +xkr_mass_min**3*(zeps-1)/zdiv1) & |
---|
| 463 | & -zfm*xkr_mass_max**3*(1.+3.*((zeps-1.)/ & |
---|
| 464 | & (zeps-2.)+(zeps-1.)/zdiv3)+(zeps-1.)/zdiv1)) |
---|
| 465 | |
---|
[5385] | 466 | zagg3 = 0.163*trb(ji,jj,jk,jpnum)**2*zfm**2*8. * xkr_mass_max**3 |
---|
[3443] | 467 | |
---|
| 468 | ! Aggregation of small into large particles |
---|
| 469 | ! Part II : Differential settling |
---|
| 470 | ! ---------------------------------------------- |
---|
| 471 | |
---|
[5385] | 472 | zagg4 = 2.*3.141*0.125*trb(ji,jj,jk,jpnum)**2* & |
---|
[3443] | 473 | & xkr_wsbio_min*(zeps-1.)**2 & |
---|
| 474 | & *(xkr_mass_min**2*((1.-zsm*zfm)/(zdiv3*zdiv4) & |
---|
| 475 | & -(1.-zfm)/(zdiv*(zeps-1.)))- & |
---|
| 476 | & ((zfm*zfm*xkr_mass_max**2*zsm-xkr_mass_min**2) & |
---|
| 477 | & *xkr_eta)/(zdiv*zdiv3*zdiv5) ) |
---|
| 478 | |
---|
[5385] | 479 | zagg5 = 2.*3.141*0.125*trb(ji,jj,jk,jpnum)**2 & |
---|
[3443] | 480 | & *(zeps-1.)*zfm*xkr_wsbio_min & |
---|
| 481 | & *(zsm*(xkr_mass_min**2-zfm*xkr_mass_max**2) & |
---|
| 482 | & /zdiv3-(xkr_mass_min**2-zfm*zsm*xkr_mass_max**2) & |
---|
| 483 | & /zdiv) |
---|
| 484 | |
---|
| 485 | ! |
---|
| 486 | ! Fractionnation by swimming organisms |
---|
| 487 | ! ------------------------------------ |
---|
| 488 | |
---|
[5385] | 489 | zfract = 2.*3.141*0.125*trb(ji,jj,jk,jpmes)*12./0.12/0.06**3*trb(ji,jj,jk,jpnum) & |
---|
[3443] | 490 | & * (0.01/xkr_mass_min)**(1.-zeps)*0.1**2 & |
---|
| 491 | & * 10000.*xstep |
---|
| 492 | |
---|
| 493 | ! Aggregation of DOC to small particles |
---|
| 494 | ! -------------------------------------- |
---|
| 495 | |
---|
[5385] | 496 | zaggdoc = 0.83 * trb(ji,jj,jk,jpdoc) * xstep * xdiss(ji,jj,jk) * trb(ji,jj,jk,jpdoc) & |
---|
| 497 | & + 0.005 * 231. * trb(ji,jj,jk,jpdoc) * xstep * trb(ji,jj,jk,jpdoc) |
---|
| 498 | zaggdoc1 = 271. * trb(ji,jj,jk,jppoc) * xstep * xdiss(ji,jj,jk) * trb(ji,jj,jk,jpdoc) & |
---|
| 499 | & + 0.02 * 16706. * trb(ji,jj,jk,jppoc) * xstep * trb(ji,jj,jk,jpdoc) |
---|
[3443] | 500 | |
---|
| 501 | # if defined key_degrad |
---|
| 502 | zagg1 = zagg1 * facvol(ji,jj,jk) |
---|
| 503 | zagg2 = zagg2 * facvol(ji,jj,jk) |
---|
| 504 | zagg3 = zagg3 * facvol(ji,jj,jk) |
---|
| 505 | zagg4 = zagg4 * facvol(ji,jj,jk) |
---|
| 506 | zagg5 = zagg5 * facvol(ji,jj,jk) |
---|
| 507 | zaggdoc = zaggdoc * facvol(ji,jj,jk) |
---|
| 508 | zaggdoc1 = zaggdoc1 * facvol(ji,jj,jk) |
---|
| 509 | # endif |
---|
| 510 | zaggsh = ( zagg1 + zagg2 + zagg3 ) * rfact2 * xdiss(ji,jj,jk) / 1000. |
---|
| 511 | zaggsi = ( zagg4 + zagg5 ) * xstep / 10. |
---|
| 512 | zagg = 0.5 * xkr_stick * ( zaggsh + zaggsi ) |
---|
| 513 | ! |
---|
[5385] | 514 | znumdoc = trb(ji,jj,jk,jpnum) / ( trb(ji,jj,jk,jppoc) + rtrn ) |
---|
[3443] | 515 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zaggdoc + zaggdoc1 |
---|
| 516 | tra(ji,jj,jk,jpnum) = tra(ji,jj,jk,jpnum) + zfract + zaggdoc / xkr_massp - zagg |
---|
| 517 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc1 |
---|
| 518 | |
---|
| 519 | ENDIF |
---|
| 520 | END DO |
---|
| 521 | END DO |
---|
| 522 | END DO |
---|
| 523 | |
---|
[3481] | 524 | ! Total primary production per year |
---|
[4996] | 525 | t_oce_co2_exp = t_oce_co2_exp + glob_sum( ( sinking(:,:,ik100) * e1e2t(:,:) * tmask(:,:,1) ) |
---|
[3481] | 526 | ! |
---|
[4996] | 527 | IF( lk_iomput ) THEN |
---|
[5385] | 528 | IF( knt == nrdttrc ) THEN |
---|
[4996] | 529 | CALL wrk_alloc( jpi, jpj, zw2d ) |
---|
| 530 | CALL wrk_alloc( jpi, jpj, jpk, zw3d ) |
---|
| 531 | zfact = 1.e+3 * rfact2r ! conversion from mol/l/kt to mol/m3/s |
---|
| 532 | ! |
---|
| 533 | IF( iom_use( "EPC100" ) ) THEN |
---|
| 534 | zw2d(:,:) = sinking(:,:,ik100) * zfact * tmask(:,:,1) ! Export of carbon at 100m |
---|
| 535 | CALL iom_put( "EPC100" , zw2d ) |
---|
| 536 | ENDIF |
---|
| 537 | IF( iom_use( "EPN100" ) ) THEN |
---|
| 538 | zw2d(:,:) = sinking2(:,:,ik100) * zfact * tmask(:,:,1) ! Export of number of aggregates ? |
---|
| 539 | CALL iom_put( "EPN100" , zw2d ) |
---|
| 540 | ENDIF |
---|
| 541 | IF( iom_use( "EPCAL100" ) ) THEN |
---|
| 542 | zw2d(:,:) = sinkcal(:,:,ik100) * zfact * tmask(:,:,1) ! Export of calcite at 100m |
---|
| 543 | CALL iom_put( "EPCAL100" , zw2d ) |
---|
| 544 | ENDIF |
---|
| 545 | IF( iom_use( "EPSI100" ) ) THEN |
---|
| 546 | zw2d(:,:) = sinksil(:,:,ik100) * zfact * tmask(:,:,1) ! Export of bigenic silica at 100m |
---|
| 547 | CALL iom_put( "EPSI100" , zw2d ) |
---|
| 548 | ENDIF |
---|
| 549 | IF( iom_use( "EXPC" ) ) THEN |
---|
| 550 | zw3d(:,:,:) = sinking(:,:,:) * zfact * tmask(:,:,:) ! Export of carbon in the water column |
---|
| 551 | CALL iom_put( "EXPC" , zw3d ) |
---|
| 552 | ENDIF |
---|
| 553 | IF( iom_use( "EXPN" ) ) THEN |
---|
| 554 | zw3d(:,:,:) = sinking(:,:,:) * zfact * tmask(:,:,:) ! Export of carbon in the water column |
---|
| 555 | CALL iom_put( "EXPN" , zw3d ) |
---|
| 556 | ENDIF |
---|
| 557 | IF( iom_use( "EXPCAL" ) ) THEN |
---|
| 558 | zw3d(:,:,:) = sinkcal(:,:,:) * zfact * tmask(:,:,:) ! Export of calcite |
---|
| 559 | CALL iom_put( "EXPCAL" , zw3d ) |
---|
| 560 | ENDIF |
---|
| 561 | IF( iom_use( "EXPSI" ) ) THEN |
---|
| 562 | zw3d(:,:,:) = sinksil(:,:,:) * zfact * tmask(:,:,:) ! Export of bigenic silica |
---|
| 563 | CALL iom_put( "EXPSI" , zw3d ) |
---|
| 564 | ENDIF |
---|
| 565 | IF( iom_use( "XNUM" ) ) THEN |
---|
| 566 | zw3d(:,:,:) = znum3d(:,:,:) * tmask(:,:,:) ! Number of particles on aggregats |
---|
| 567 | CALL iom_put( "XNUM" , zw3d ) |
---|
| 568 | ENDIF |
---|
| 569 | IF( iom_use( "WSC" ) ) THEN |
---|
| 570 | zw3d(:,:,:) = wsbio3(:,:,:) * tmask(:,:,:) ! Sinking speed of carbon particles |
---|
| 571 | CALL iom_put( "WSC" , zw3d ) |
---|
| 572 | ENDIF |
---|
| 573 | IF( iom_use( "WSN" ) ) THEN |
---|
| 574 | zw3d(:,:,:) = wsbio4(:,:,:) * tmask(:,:,:) ! Sinking speed of particles number |
---|
| 575 | CALL iom_put( "WSN" , zw3d ) |
---|
| 576 | ENDIF |
---|
| 577 | ! |
---|
| 578 | CALL wrk_dealloc( jpi, jpj, zw2d ) |
---|
| 579 | CALL wrk_dealloc( jpi, jpj, jpk, zw3d ) |
---|
| 580 | ELSE |
---|
| 581 | IF( ln_diatrc ) THEN |
---|
| 582 | zfact = 1.e3 * rfact2r |
---|
| 583 | trc2d(:,: ,jp_pcs0_2d + 4) = sinking (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 584 | trc2d(:,: ,jp_pcs0_2d + 5) = sinking2(:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 585 | trc2d(:,: ,jp_pcs0_2d + 6) = sinkfer (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 586 | trc2d(:,: ,jp_pcs0_2d + 7) = sinksil (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 587 | trc2d(:,: ,jp_pcs0_2d + 8) = sinkcal (:,:,ik100) * zfact * tmask(:,:,1) |
---|
| 588 | trc3d(:,:,:,jp_pcs0_3d + 11) = sinking (:,:,:) * zfact * tmask(:,:,:) |
---|
| 589 | trc3d(:,:,:,jp_pcs0_3d + 12) = sinking2(:,:,:) * zfact * tmask(:,:,:) |
---|
| 590 | trc3d(:,:,:,jp_pcs0_3d + 13) = sinksil (:,:,:) * zfact * tmask(:,:,:) |
---|
| 591 | trc3d(:,:,:,jp_pcs0_3d + 14) = sinkcal (:,:,:) * zfact * tmask(:,:,:) |
---|
| 592 | trc3d(:,:,:,jp_pcs0_3d + 15) = znum3d (:,:,:) * tmask(:,:,:) |
---|
| 593 | trc3d(:,:,:,jp_pcs0_3d + 16) = wsbio3 (:,:,:) * tmask(:,:,:) |
---|
| 594 | trc3d(:,:,:,jp_pcs0_3d + 17) = wsbio4 (:,:,:) * tmask(:,:,:) |
---|
[3443] | 595 | ENDIF |
---|
| 596 | ENDIF |
---|
[4996] | 597 | |
---|
[3443] | 598 | ! |
---|
| 599 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
| 600 | WRITE(charout, FMT="('sink')") |
---|
| 601 | CALL prt_ctl_trc_info(charout) |
---|
| 602 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
| 603 | ENDIF |
---|
| 604 | ! |
---|
| 605 | CALL wrk_dealloc( jpi, jpj, jpk, znum3d ) |
---|
| 606 | ! |
---|
| 607 | IF( nn_timing == 1 ) CALL timing_stop('p4z_sink') |
---|
| 608 | ! |
---|
| 609 | END SUBROUTINE p4z_sink |
---|
| 610 | |
---|
| 611 | |
---|
| 612 | SUBROUTINE p4z_sink_init |
---|
| 613 | !!---------------------------------------------------------------------- |
---|
| 614 | !! *** ROUTINE p4z_sink_init *** |
---|
| 615 | !! |
---|
| 616 | !! ** Purpose : Initialization of sinking parameters |
---|
| 617 | !! Kriest parameterization only |
---|
| 618 | !! |
---|
| 619 | !! ** Method : Read the nampiskrs namelist and check the parameters |
---|
| 620 | !! called at the first timestep |
---|
| 621 | !! |
---|
| 622 | !! ** input : Namelist nampiskrs |
---|
| 623 | !!---------------------------------------------------------------------- |
---|
| 624 | INTEGER :: jk, jn, kiter |
---|
[4147] | 625 | INTEGER :: ios ! Local integer output status for namelist read |
---|
[3443] | 626 | REAL(wp) :: znum, zdiv |
---|
| 627 | REAL(wp) :: zws, zwr, zwl,wmax, znummax |
---|
| 628 | REAL(wp) :: zmin, zmax, zl, zr, xacc |
---|
| 629 | ! |
---|
| 630 | NAMELIST/nampiskrs/ xkr_sfact, xkr_stick , & |
---|
| 631 | & xkr_nnano, xkr_ndiat, xkr_nmicro, xkr_nmeso, xkr_naggr |
---|
| 632 | !!---------------------------------------------------------------------- |
---|
| 633 | ! |
---|
| 634 | IF( nn_timing == 1 ) CALL timing_start('p4z_sink_init') |
---|
| 635 | ! |
---|
| 636 | |
---|
[4147] | 637 | REWIND( numnatp_ref ) ! Namelist nampiskrs in reference namelist : Pisces sinking Kriest |
---|
| 638 | READ ( numnatp_ref, nampiskrs, IOSTAT = ios, ERR = 901) |
---|
| 639 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampiskrs in reference namelist', lwp ) |
---|
| 640 | |
---|
| 641 | REWIND( numnatp_cfg ) ! Namelist nampiskrs in configuration namelist : Pisces sinking Kriest |
---|
| 642 | READ ( numnatp_cfg, nampiskrs, IOSTAT = ios, ERR = 902 ) |
---|
| 643 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampiskrs in configuration namelist', lwp ) |
---|
[4624] | 644 | IF(lwm) WRITE ( numonp, nampiskrs ) |
---|
[4147] | 645 | |
---|
[3443] | 646 | IF(lwp) THEN |
---|
| 647 | WRITE(numout,*) |
---|
| 648 | WRITE(numout,*) ' Namelist : nampiskrs' |
---|
| 649 | WRITE(numout,*) ' Sinking factor xkr_sfact = ', xkr_sfact |
---|
| 650 | WRITE(numout,*) ' Stickiness xkr_stick = ', xkr_stick |
---|
| 651 | WRITE(numout,*) ' Nbr of cell in nano size class xkr_nnano = ', xkr_nnano |
---|
| 652 | WRITE(numout,*) ' Nbr of cell in diatoms size class xkr_ndiat = ', xkr_ndiat |
---|
| 653 | WRITE(numout,*) ' Nbr of cell in microzoo size class xkr_nmicro = ', xkr_nmicro |
---|
| 654 | WRITE(numout,*) ' Nbr of cell in mesozoo size class xkr_nmeso = ', xkr_nmeso |
---|
| 655 | WRITE(numout,*) ' Nbr of cell in aggregates size class xkr_naggr = ', xkr_naggr |
---|
| 656 | ENDIF |
---|
| 657 | |
---|
| 658 | |
---|
| 659 | ! max and min vertical particle speed |
---|
| 660 | xkr_wsbio_min = xkr_sfact * xkr_mass_min**xkr_eta |
---|
| 661 | xkr_wsbio_max = xkr_sfact * xkr_mass_max**xkr_eta |
---|
| 662 | IF (lwp) WRITE(numout,*) ' max and min vertical particle speed ', xkr_wsbio_min, xkr_wsbio_max |
---|
| 663 | |
---|
| 664 | ! |
---|
| 665 | ! effect of the sizes of the different living pools on particle numbers |
---|
| 666 | ! nano = 2um-20um -> mean size=6.32 um -> ws=2.596 -> xnum=xnnano=2.337 |
---|
| 667 | ! diat and microzoo = 10um-200um -> 44.7 -> 8.732 -> xnum=xndiat=3.718 |
---|
| 668 | ! mesozoo = 200um-2mm -> 632.45 -> 45.14 -> xnum=xnmeso=7.147 |
---|
| 669 | ! aggregates = 200um-10mm -> 1414 -> 74.34 -> xnum=xnaggr=9.877 |
---|
| 670 | ! doc aggregates = 1um |
---|
| 671 | ! ---------------------------------------------------------- |
---|
| 672 | |
---|
| 673 | xkr_dnano = 1. / ( xkr_massp * xkr_nnano ) |
---|
| 674 | xkr_ddiat = 1. / ( xkr_massp * xkr_ndiat ) |
---|
| 675 | xkr_dmicro = 1. / ( xkr_massp * xkr_nmicro ) |
---|
| 676 | xkr_dmeso = 1. / ( xkr_massp * xkr_nmeso ) |
---|
| 677 | xkr_daggr = 1. / ( xkr_massp * xkr_naggr ) |
---|
| 678 | |
---|
| 679 | !!--------------------------------------------------------------------- |
---|
| 680 | !! 'key_kriest' ??? |
---|
| 681 | !!--------------------------------------------------------------------- |
---|
| 682 | ! COMPUTATION OF THE VERTICAL PROFILE OF MAXIMUM SINKING SPEED |
---|
| 683 | ! Search of the maximum number of particles in aggregates for each k-level. |
---|
| 684 | ! Bissection Method |
---|
| 685 | !-------------------------------------------------------------------- |
---|
| 686 | IF (lwp) THEN |
---|
| 687 | WRITE(numout,*) |
---|
| 688 | WRITE(numout,*)' kriest : Compute maximum number of particles in aggregates' |
---|
| 689 | ENDIF |
---|
| 690 | |
---|
| 691 | xacc = 0.001_wp |
---|
| 692 | kiter = 50 |
---|
| 693 | zmin = 1.10_wp |
---|
| 694 | zmax = xkr_mass_max / xkr_mass_min |
---|
| 695 | xkr_frac = zmax |
---|
| 696 | |
---|
| 697 | DO jk = 1,jpk |
---|
| 698 | zl = zmin |
---|
| 699 | zr = zmax |
---|
[6140] | 700 | wmax = 0.5 * e3t_n(1,1,jk) * rday * float(niter1max) / rfact2 |
---|
[3443] | 701 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
| 702 | znum = zl - 1. |
---|
| 703 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 704 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 705 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 706 | & - wmax |
---|
| 707 | |
---|
| 708 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
| 709 | znum = zr - 1. |
---|
| 710 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 711 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 712 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 713 | & - wmax |
---|
| 714 | iflag: DO jn = 1, kiter |
---|
| 715 | IF ( zwl == 0._wp ) THEN ; znummax = zl |
---|
| 716 | ELSEIF( zwr == 0._wp ) THEN ; znummax = zr |
---|
| 717 | ELSE |
---|
| 718 | znummax = ( zr + zl ) / 2. |
---|
| 719 | zdiv = xkr_zeta + xkr_eta - xkr_eta * znummax |
---|
| 720 | znum = znummax - 1. |
---|
| 721 | zws = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 722 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 723 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 724 | & - wmax |
---|
| 725 | IF( zws * zwl < 0. ) THEN ; zr = znummax |
---|
| 726 | ELSE ; zl = znummax |
---|
| 727 | ENDIF |
---|
| 728 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
| 729 | znum = zl - 1. |
---|
| 730 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 731 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 732 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 733 | & - wmax |
---|
| 734 | |
---|
| 735 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
| 736 | znum = zr - 1. |
---|
| 737 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
| 738 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
| 739 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
| 740 | & - wmax |
---|
| 741 | ! |
---|
| 742 | IF ( ABS ( zws ) <= xacc ) EXIT iflag |
---|
| 743 | ! |
---|
| 744 | ENDIF |
---|
| 745 | ! |
---|
| 746 | END DO iflag |
---|
| 747 | |
---|
| 748 | xnumm(jk) = znummax |
---|
| 749 | IF (lwp) WRITE(numout,*) ' jk = ', jk, ' wmax = ', wmax,' xnum max = ', xnumm(jk) |
---|
| 750 | ! |
---|
| 751 | END DO |
---|
| 752 | ! |
---|
[4996] | 753 | ik100 = 10 ! last level where depth less than 100 m |
---|
| 754 | DO jk = jpkm1, 1, -1 |
---|
| 755 | IF( gdept_1d(jk) > 100. ) iksed = jk - 1 |
---|
| 756 | END DO |
---|
| 757 | IF (lwp) WRITE(numout,*) |
---|
| 758 | IF (lwp) WRITE(numout,*) ' Level corresponding to 100m depth ', ik100 + 1 |
---|
| 759 | IF (lwp) WRITE(numout,*) |
---|
| 760 | ! |
---|
[3481] | 761 | t_oce_co2_exp = 0._wp |
---|
| 762 | ! |
---|
[3443] | 763 | IF( nn_timing == 1 ) CALL timing_stop('p4z_sink_init') |
---|
| 764 | ! |
---|
| 765 | END SUBROUTINE p4z_sink_init |
---|
| 766 | |
---|
| 767 | #endif |
---|
| 768 | |
---|
| 769 | SUBROUTINE p4z_sink2( pwsink, psinkflx, jp_tra, kiter ) |
---|
| 770 | !!--------------------------------------------------------------------- |
---|
| 771 | !! *** ROUTINE p4z_sink2 *** |
---|
| 772 | !! |
---|
| 773 | !! ** Purpose : Compute the sedimentation terms for the various sinking |
---|
| 774 | !! particles. The scheme used to compute the trends is based |
---|
| 775 | !! on MUSCL. |
---|
| 776 | !! |
---|
| 777 | !! ** Method : - this ROUTINE compute not exactly the advection but the |
---|
| 778 | !! transport term, i.e. div(u*tra). |
---|
| 779 | !!--------------------------------------------------------------------- |
---|
| 780 | ! |
---|
| 781 | INTEGER , INTENT(in ) :: jp_tra ! tracer index index |
---|
| 782 | INTEGER , INTENT(in ) :: kiter ! number of iterations for time-splitting |
---|
| 783 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj,jpk) :: pwsink ! sinking speed |
---|
| 784 | REAL(wp), INTENT(inout), DIMENSION(jpi,jpj,jpk) :: psinkflx ! sinking fluxe |
---|
| 785 | !! |
---|
| 786 | INTEGER :: ji, jj, jk, jn |
---|
| 787 | REAL(wp) :: zigma,zew,zign, zflx, zstep |
---|
[3494] | 788 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ztraz, zakz, zwsink2, ztrb |
---|
[3443] | 789 | !!--------------------------------------------------------------------- |
---|
| 790 | ! |
---|
| 791 | IF( nn_timing == 1 ) CALL timing_start('p4z_sink2') |
---|
| 792 | ! |
---|
| 793 | ! Allocate temporary workspace |
---|
[3494] | 794 | CALL wrk_alloc( jpi, jpj, jpk, ztraz, zakz, zwsink2, ztrb ) |
---|
[3443] | 795 | |
---|
| 796 | zstep = rfact2 / FLOAT( kiter ) / 2. |
---|
| 797 | |
---|
| 798 | ztraz(:,:,:) = 0.e0 |
---|
| 799 | zakz (:,:,:) = 0.e0 |
---|
[5385] | 800 | ztrb (:,:,:) = trb(:,:,:,jp_tra) |
---|
[3443] | 801 | |
---|
| 802 | DO jk = 1, jpkm1 |
---|
| 803 | zwsink2(:,:,jk+1) = -pwsink(:,:,jk) / rday * tmask(:,:,jk+1) |
---|
| 804 | END DO |
---|
| 805 | zwsink2(:,:,1) = 0.e0 |
---|
| 806 | IF( lk_degrad ) THEN |
---|
| 807 | zwsink2(:,:,:) = zwsink2(:,:,:) * facvol(:,:,:) |
---|
| 808 | ENDIF |
---|
| 809 | |
---|
| 810 | |
---|
| 811 | ! Vertical advective flux |
---|
| 812 | DO jn = 1, 2 |
---|
| 813 | ! first guess of the slopes interior values |
---|
| 814 | DO jk = 2, jpkm1 |
---|
[5385] | 815 | ztraz(:,:,jk) = ( trb(:,:,jk-1,jp_tra) - trb(:,:,jk,jp_tra) ) * tmask(:,:,jk) |
---|
[3443] | 816 | END DO |
---|
| 817 | ztraz(:,:,1 ) = 0.0 |
---|
| 818 | ztraz(:,:,jpk) = 0.0 |
---|
| 819 | |
---|
| 820 | ! slopes |
---|
| 821 | DO jk = 2, jpkm1 |
---|
| 822 | DO jj = 1,jpj |
---|
| 823 | DO ji = 1, jpi |
---|
| 824 | zign = 0.25 + SIGN( 0.25, ztraz(ji,jj,jk) * ztraz(ji,jj,jk+1) ) |
---|
| 825 | zakz(ji,jj,jk) = ( ztraz(ji,jj,jk) + ztraz(ji,jj,jk+1) ) * zign |
---|
| 826 | END DO |
---|
| 827 | END DO |
---|
| 828 | END DO |
---|
| 829 | |
---|
| 830 | ! Slopes limitation |
---|
| 831 | DO jk = 2, jpkm1 |
---|
| 832 | DO jj = 1, jpj |
---|
| 833 | DO ji = 1, jpi |
---|
| 834 | zakz(ji,jj,jk) = SIGN( 1., zakz(ji,jj,jk) ) * & |
---|
| 835 | & MIN( ABS( zakz(ji,jj,jk) ), 2. * ABS(ztraz(ji,jj,jk+1)), 2. * ABS(ztraz(ji,jj,jk) ) ) |
---|
| 836 | END DO |
---|
| 837 | END DO |
---|
| 838 | END DO |
---|
| 839 | |
---|
| 840 | ! vertical advective flux |
---|
| 841 | DO jk = 1, jpkm1 |
---|
| 842 | DO jj = 1, jpj |
---|
| 843 | DO ji = 1, jpi |
---|
[6140] | 844 | zigma = zwsink2(ji,jj,jk+1) * zstep / e3w_n(ji,jj,jk+1) |
---|
[3443] | 845 | zew = zwsink2(ji,jj,jk+1) |
---|
[5385] | 846 | psinkflx(ji,jj,jk+1) = -zew * ( trb(ji,jj,jk,jp_tra) - 0.5 * ( 1 + zigma ) * zakz(ji,jj,jk) ) * zstep |
---|
[3443] | 847 | END DO |
---|
| 848 | END DO |
---|
| 849 | END DO |
---|
| 850 | ! |
---|
| 851 | ! Boundary conditions |
---|
| 852 | psinkflx(:,:,1 ) = 0.e0 |
---|
| 853 | psinkflx(:,:,jpk) = 0.e0 |
---|
| 854 | |
---|
| 855 | DO jk=1,jpkm1 |
---|
| 856 | DO jj = 1,jpj |
---|
| 857 | DO ji = 1, jpi |
---|
[6140] | 858 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / e3t_n(ji,jj,jk) |
---|
[5385] | 859 | trb(ji,jj,jk,jp_tra) = trb(ji,jj,jk,jp_tra) + zflx |
---|
[3443] | 860 | END DO |
---|
| 861 | END DO |
---|
| 862 | END DO |
---|
| 863 | |
---|
| 864 | ENDDO |
---|
| 865 | |
---|
[3494] | 866 | DO jk = 1,jpkm1 |
---|
[3443] | 867 | DO jj = 1,jpj |
---|
| 868 | DO ji = 1, jpi |
---|
[6140] | 869 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / e3t_n(ji,jj,jk) |
---|
[3494] | 870 | ztrb(ji,jj,jk) = ztrb(ji,jj,jk) + 2. * zflx |
---|
[3443] | 871 | END DO |
---|
| 872 | END DO |
---|
| 873 | END DO |
---|
| 874 | |
---|
[5385] | 875 | trb(:,:,:,jp_tra) = ztrb(:,:,:) |
---|
[3494] | 876 | psinkflx(:,:,:) = 2. * psinkflx(:,:,:) |
---|
[3443] | 877 | ! |
---|
[3494] | 878 | CALL wrk_dealloc( jpi, jpj, jpk, ztraz, zakz, zwsink2, ztrb ) |
---|
[3443] | 879 | ! |
---|
| 880 | IF( nn_timing == 1 ) CALL timing_stop('p4z_sink2') |
---|
| 881 | ! |
---|
| 882 | END SUBROUTINE p4z_sink2 |
---|
| 883 | |
---|
| 884 | |
---|
| 885 | INTEGER FUNCTION p4z_sink_alloc() |
---|
| 886 | !!---------------------------------------------------------------------- |
---|
| 887 | !! *** ROUTINE p4z_sink_alloc *** |
---|
| 888 | !!---------------------------------------------------------------------- |
---|
| 889 | ALLOCATE( wsbio3 (jpi,jpj,jpk) , wsbio4 (jpi,jpj,jpk) , wscal(jpi,jpj,jpk) , & |
---|
| 890 | & sinking(jpi,jpj,jpk) , sinking2(jpi,jpj,jpk) , & |
---|
| 891 | & sinkcal(jpi,jpj,jpk) , sinksil (jpi,jpj,jpk) , & |
---|
| 892 | #if defined key_kriest |
---|
| 893 | & xnumm(jpk) , & |
---|
| 894 | #else |
---|
| 895 | & sinkfer2(jpi,jpj,jpk) , & |
---|
| 896 | #endif |
---|
| 897 | & sinkfer(jpi,jpj,jpk) , STAT=p4z_sink_alloc ) |
---|
| 898 | ! |
---|
| 899 | IF( p4z_sink_alloc /= 0 ) CALL ctl_warn('p4z_sink_alloc : failed to allocate arrays.') |
---|
| 900 | ! |
---|
| 901 | END FUNCTION p4z_sink_alloc |
---|
| 902 | |
---|
| 903 | #else |
---|
| 904 | !!====================================================================== |
---|
| 905 | !! Dummy module : No PISCES bio-model |
---|
| 906 | !!====================================================================== |
---|
| 907 | CONTAINS |
---|
| 908 | SUBROUTINE p4z_sink ! Empty routine |
---|
| 909 | END SUBROUTINE p4z_sink |
---|
| 910 | #endif |
---|
| 911 | |
---|
| 912 | !!====================================================================== |
---|
[5656] | 913 | END MODULE p4zsink |
---|