[935] | 1 | MODULE p4zopt |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE p4zopt *** |
---|
| 4 | !! TOP : PISCES Compute the light availability in the water column |
---|
| 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_opt : Compute the light availability in the water column |
---|
| 14 | !!---------------------------------------------------------------------- |
---|
| 15 | USE trc |
---|
| 16 | USE oce_trc ! |
---|
[1119] | 17 | USE trc |
---|
[1073] | 18 | USE sms_pisces |
---|
[935] | 19 | |
---|
| 20 | IMPLICIT NONE |
---|
| 21 | PRIVATE |
---|
| 22 | |
---|
[1073] | 23 | PUBLIC p4z_opt |
---|
[935] | 24 | |
---|
| 25 | !! * Shared module variables |
---|
| 26 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: & !: |
---|
| 27 | etot, enano, ediat, & !: PAR for phyto, nano and diat |
---|
| 28 | emoy !: averaged PAR in the mixed layer |
---|
| 29 | |
---|
| 30 | !! * Module variables |
---|
| 31 | REAL(wp), DIMENSION(3,61) :: & !: |
---|
| 32 | xkrgb !: ??? |
---|
| 33 | |
---|
| 34 | !!* Substitution |
---|
| 35 | # include "domzgr_substitute.h90" |
---|
| 36 | !!---------------------------------------------------------------------- |
---|
| 37 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
---|
[1152] | 38 | !! $Id$ |
---|
[935] | 39 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
---|
| 40 | !!---------------------------------------------------------------------- |
---|
| 41 | |
---|
| 42 | CONTAINS |
---|
| 43 | |
---|
| 44 | SUBROUTINE p4z_opt(kt, jnt) |
---|
| 45 | !!--------------------------------------------------------------------- |
---|
| 46 | !! *** ROUTINE p4z_opt *** |
---|
| 47 | !! |
---|
| 48 | !! ** Purpose : Compute the light availability in the water column |
---|
| 49 | !! depending on the depth and the chlorophyll concentration |
---|
| 50 | !! |
---|
| 51 | !! ** Method : - ??? |
---|
| 52 | !!--------------------------------------------------------------------- |
---|
| 53 | INTEGER, INTENT(in) :: kt, jnt ! ocean time step |
---|
| 54 | INTEGER :: ji, jj, jk |
---|
| 55 | INTEGER :: irgb |
---|
| 56 | REAL(wp) :: zchl, zparlux |
---|
| 57 | REAL(wp) :: zrlight , zblight , zglight |
---|
| 58 | REAL(wp), DIMENSION(jpi,jpj) :: zdepmoy, zetmp |
---|
| 59 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zekg, zekr, zekb |
---|
| 60 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze1 , ze2 , ze3 |
---|
| 61 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze3lum, ze4lum |
---|
| 62 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze5lum, ze6lum |
---|
| 63 | !!--------------------------------------------------------------------- |
---|
| 64 | |
---|
| 65 | |
---|
| 66 | IF( ( kt * jnt ) == nittrc000 ) CALL p4z_opt_init ! Initialization (first time-step only) |
---|
| 67 | |
---|
| 68 | |
---|
| 69 | ! Initialisation of variables used to compute PAR |
---|
| 70 | ! ----------------------------------------------- |
---|
| 71 | ze1 (:,:,:) = 0.e0 |
---|
| 72 | ze2 (:,:,:) = 0.e0 |
---|
| 73 | ze3 (:,:,:) = 0.e0 |
---|
| 74 | etot(:,:,:) = 0.e0 |
---|
| 75 | |
---|
| 76 | zparlux = 0.43 / 3. |
---|
| 77 | |
---|
| 78 | ! IF activated, computation of the qsr for the dynamics |
---|
| 79 | ! ----------------------------------------------------- |
---|
| 80 | IF( ln_qsr_sms ) THEN |
---|
| 81 | ze3lum(:,:,:) = 0.e0 |
---|
| 82 | ze4lum(:,:,:) = 0.e0 |
---|
| 83 | ze5lum(:,:,:) = 0.e0 |
---|
| 84 | ze6lum(:,:,:) = 0.e0 |
---|
| 85 | ENDIF |
---|
| 86 | |
---|
| 87 | DO jk = 1, jpkm1 |
---|
| 88 | DO jj = 1, jpj |
---|
| 89 | DO ji = 1, jpi |
---|
| 90 | |
---|
| 91 | ! Separation in three light bands: red, green, blue |
---|
| 92 | ! ------------------------------------------------- |
---|
| 93 | zchl = ( trn(ji,jj,jk,jpnch) + trn(ji,jj,jk,jpdch) + rtrn ) * 1.e6 |
---|
| 94 | zchl = MAX( 0.03, zchl ) |
---|
| 95 | zchl = MIN( 10. , zchl ) |
---|
| 96 | |
---|
| 97 | irgb = INT( 41 + 20.* LOG10( zchl ) + rtrn ) |
---|
| 98 | |
---|
| 99 | zekb(ji,jj,jk) = xkrgb(1,irgb) |
---|
| 100 | zekg(ji,jj,jk) = xkrgb(2,irgb) |
---|
| 101 | zekr(ji,jj,jk) = xkrgb(3,irgb) |
---|
| 102 | |
---|
| 103 | END DO |
---|
| 104 | END DO |
---|
| 105 | END DO |
---|
| 106 | |
---|
| 107 | !CDIR NOVERRCHK |
---|
| 108 | DO jj = 1,jpj |
---|
| 109 | !CDIR NOVERRCHK |
---|
| 110 | DO ji = 1,jpi |
---|
| 111 | |
---|
| 112 | ! Separation in three light bands: red, green, blue |
---|
| 113 | ! ------------------------------------------------- |
---|
| 114 | |
---|
| 115 | zblight = 0.5 * zekb(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 116 | zglight = 0.5 * zekg(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 117 | zrlight = 0.5 * zekr(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 118 | |
---|
| 119 | ze1(ji,jj,1) = zparlux * qsr(ji,jj) * EXP(-zblight) |
---|
| 120 | ze2(ji,jj,1) = zparlux * qsr(ji,jj) * EXP(-zglight) |
---|
| 121 | ze3(ji,jj,1) = zparlux * qsr(ji,jj) * EXP(-zrlight) |
---|
| 122 | |
---|
| 123 | END DO |
---|
| 124 | END DO |
---|
| 125 | |
---|
| 126 | !CDIR NOVERRCHK |
---|
| 127 | DO jk = 2, jpkm1 |
---|
| 128 | !CDIR NOVERRCHK |
---|
| 129 | DO jj = 1, jpj |
---|
| 130 | !CDIR NOVERRCHK |
---|
| 131 | DO ji = 1, jpi |
---|
| 132 | |
---|
| 133 | ! Separation in three light bands: red, green, blue |
---|
| 134 | ! ------------------------------------------------- |
---|
| 135 | |
---|
| 136 | zblight = 0.5 * ( zekb(ji,jj,jk-1) * fse3t(ji,jj,jk-1) & |
---|
| 137 | & + zekb(ji,jj,jk ) * fse3t(ji,jj,jk ) ) |
---|
| 138 | zglight = 0.5 * ( zekg(ji,jj,jk-1) * fse3t(ji,jj,jk-1) & |
---|
| 139 | & + zekg(ji,jj,jk ) * fse3t(ji,jj,jk ) ) |
---|
| 140 | zrlight = 0.5 * ( zekr(ji,jj,jk-1) * fse3t(ji,jj,jk-1) & |
---|
| 141 | & + zekr(ji,jj,jk ) * fse3t(ji,jj,jk ) ) |
---|
| 142 | |
---|
| 143 | ze1(ji,jj,jk) = ze1(ji,jj,jk-1) * EXP(-zblight) |
---|
| 144 | ze2(ji,jj,jk) = ze2(ji,jj,jk-1) * EXP(-zglight) |
---|
| 145 | ze3(ji,jj,jk) = ze3(ji,jj,jk-1) * EXP(-zrlight) |
---|
| 146 | |
---|
| 147 | END DO |
---|
| 148 | END DO |
---|
| 149 | END DO |
---|
| 150 | |
---|
| 151 | etot(:,:,:) = ze1(:,:,:) + ze2(:,:,:) + ze3(:,:,:) |
---|
| 152 | enano(:,:,:) = 2.1 * ze1(:,:,:) + 0.42 * ze2(:,:,:) + 0.4 * ze3(:,:,:) |
---|
| 153 | ediat(:,:,:) = 1.6 * ze1(:,:,:) + 0.69 * ze2(:,:,:) + 0.7 * ze3(:,:,:) |
---|
| 154 | |
---|
| 155 | |
---|
| 156 | IF( ln_qsr_sms ) THEN |
---|
| 157 | |
---|
| 158 | ! In the following, the vertical attenuation of qsr for the dynamics is computed |
---|
| 159 | ! ------------------------------------------------------------------------------ |
---|
| 160 | |
---|
| 161 | !CDIR NOVERRCHK |
---|
| 162 | DO jj = 1, jpj |
---|
| 163 | !CDIR NOVERRCHK |
---|
| 164 | DO ji = 1, jpi |
---|
| 165 | |
---|
| 166 | ! Separation in three light bands: red, green, blue |
---|
| 167 | ! ------------------------------------------------- |
---|
| 168 | |
---|
| 169 | zblight = 0.5 * zekb(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 170 | zglight = 0.5 * zekg(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 171 | zrlight = 0.5 * zekr(ji,jj,1) * fse3t(ji,jj,1) |
---|
| 172 | |
---|
| 173 | ze3lum(ji,jj,1) = zparlux * qsr(ji,jj) |
---|
| 174 | ze4lum(ji,jj,1) = zparlux * qsr(ji,jj) |
---|
| 175 | ze5lum(ji,jj,1) = zparlux * qsr(ji,jj) |
---|
| 176 | ze6lum(ji,jj,1) = (1.-3. * zparlux) * qsr(ji,jj) |
---|
| 177 | |
---|
| 178 | END DO |
---|
| 179 | END DO |
---|
| 180 | |
---|
| 181 | !CDIR NOVERRCHK |
---|
| 182 | DO jk = 2, jpkm1 |
---|
| 183 | !CDIR NOVERRCHK |
---|
| 184 | DO jj = 1, jpj |
---|
| 185 | !CDIR NOVERRCHK |
---|
| 186 | DO ji = 1, jpi |
---|
| 187 | |
---|
| 188 | ! Separation in three light bands: red, green, blue |
---|
| 189 | ! ------------------------------------------------- |
---|
| 190 | |
---|
| 191 | zblight = zekb(ji,jj,jk-1) * fse3t(ji,jj,jk-1) |
---|
| 192 | zglight = zekg(ji,jj,jk-1) * fse3t(ji,jj,jk-1) |
---|
| 193 | zrlight = zekr(ji,jj,jk-1) * fse3t(ji,jj,jk-1) |
---|
| 194 | |
---|
| 195 | ze3lum(ji,jj,jk) = ze3lum(ji,jj,jk-1) * EXP( -zblight ) |
---|
| 196 | ze4lum(ji,jj,jk) = ze4lum(ji,jj,jk-1) * EXP( -zglight ) |
---|
| 197 | ze5lum(ji,jj,jk) = ze5lum(ji,jj,jk-1) * EXP( -zrlight ) |
---|
| 198 | ze6lum(ji,jj,jk) = ze6lum(ji,jj,jk-1) * EXP( -fse3t(ji,jj,jk-1) / xsi1 ) |
---|
| 199 | |
---|
| 200 | END DO |
---|
| 201 | END DO |
---|
| 202 | END DO |
---|
| 203 | |
---|
| 204 | etot3(:,:,:) = ze3lum(:,:,:) + ze4lum(:,:,:) + ze5lum(:,:,:) + ze6lum(:,:,:) |
---|
| 205 | |
---|
| 206 | ENDIF |
---|
| 207 | |
---|
| 208 | ! Computation of the euphotic depth |
---|
| 209 | ! --------------------------------- |
---|
[1180] | 210 | ! Euphotic layer bottom level |
---|
| 211 | neln(:,:) = 1 ! initialisation of EL level |
---|
| 212 | heup(:,:) = 300. |
---|
[935] | 213 | |
---|
| 214 | DO jk = 2, jpkm1 |
---|
| 215 | DO jj = 1, jpj |
---|
[1180] | 216 | DO ji = 1, jpi |
---|
| 217 | IF( etot(ji,jj,jk) >= 0.0043 * qsr(ji,jj) ) THEN |
---|
| 218 | neln(ji,jj) = jk+1 ! 1rst T-level strictly below EL bottom |
---|
| 219 | ! ! nb. this is to ensure compatibility with |
---|
| 220 | ! ! nmld_trc definition in trd_mld_trc_zint |
---|
| 221 | heup(ji,jj) = fsdepw(ji,jj,jk+1) ! Euphotic layer depth |
---|
| 222 | ENDIF |
---|
| 223 | END DO |
---|
| 224 | END DO |
---|
| 225 | ENDDO |
---|
| 226 | |
---|
| 227 | heup(:,:) = MIN( 300., heup(:,:) ) |
---|
[935] | 228 | |
---|
| 229 | ! Computation of the mean light over the mixed layer depth |
---|
| 230 | ! -------------------------------------------------------- |
---|
| 231 | |
---|
| 232 | zdepmoy(:,:) = 0.e0 |
---|
| 233 | zetmp (:,:) = 0.e0 |
---|
| 234 | emoy (:,:,:) = 0.e0 |
---|
| 235 | |
---|
| 236 | DO jk = 1, jpkm1 |
---|
| 237 | DO jj = 1, jpj |
---|
| 238 | DO ji = 1, jpi |
---|
| 239 | IF( fsdepw(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
---|
| 240 | zetmp (ji,jj) = zetmp (ji,jj) + etot(ji,jj,jk) * fse3t(ji,jj,jk) |
---|
| 241 | zdepmoy(ji,jj) = zdepmoy(ji,jj) + fse3t(ji,jj,jk) |
---|
| 242 | ENDIF |
---|
| 243 | END DO |
---|
| 244 | END DO |
---|
| 245 | END DO |
---|
| 246 | |
---|
| 247 | emoy(:,:,:) = etot(:,:,:) |
---|
| 248 | |
---|
| 249 | DO jk = 1, jpkm1 |
---|
| 250 | DO jj = 1, jpj |
---|
| 251 | DO ji = 1, jpi |
---|
| 252 | IF( fsdepw(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
---|
| 253 | emoy(ji,jj,jk) = zetmp(ji,jj) / ( zdepmoy(ji,jj) + rtrn ) |
---|
| 254 | ENDIF |
---|
| 255 | END DO |
---|
| 256 | END DO |
---|
| 257 | END DO |
---|
| 258 | |
---|
| 259 | |
---|
| 260 | # if defined key_trc_diaadd |
---|
[1119] | 261 | trc2d(:,:,jp_pcs0_2d + 10) = heup(:,:) |
---|
[935] | 262 | # endif |
---|
| 263 | ! |
---|
| 264 | END SUBROUTINE p4z_opt |
---|
| 265 | |
---|
| 266 | SUBROUTINE p4z_opt_init |
---|
| 267 | |
---|
| 268 | !!---------------------------------------------------------------------- |
---|
| 269 | !! *** ROUTINE p4z_opt_init *** |
---|
| 270 | !! |
---|
| 271 | !! ** Purpose : Initialization of of the optical scheme |
---|
| 272 | !! |
---|
| 273 | !! ** Method : read the look up table for the optical coefficients |
---|
| 274 | !! |
---|
| 275 | !! ** input : xKRGB61 |
---|
| 276 | !! |
---|
| 277 | !!---------------------------------------------------------------------- |
---|
| 278 | |
---|
| 279 | INTEGER :: ichl, iband |
---|
| 280 | INTEGER :: numlight |
---|
| 281 | REAL(wp) :: ztoto |
---|
[1271] | 282 | CHARACTER(LEN=20) :: clname |
---|
[935] | 283 | |
---|
| 284 | ! FROM THE NEW BIOOPTIC MODEL PROPOSED JM ANDRE, WE READ HERE |
---|
| 285 | ! A PRECOMPUTED ARRAY CORRESPONDING TO THE ATTENUATION COEFFICIENT |
---|
| 286 | |
---|
[1271] | 287 | clname = 'kRGB61.txt' |
---|
| 288 | CALL ctlopn( numlight, clname, 'OLD', 'FORMATTED', 'SEQUENTIAL', & |
---|
[935] | 289 | & 1, numout, .TRUE., 1 ) |
---|
| 290 | |
---|
| 291 | DO ichl = 1,61 |
---|
| 292 | READ(numlight,*) ztoto, ( xkrgb(iband,ichl), iband = 1,3 ) |
---|
| 293 | END DO |
---|
| 294 | |
---|
| 295 | CLOSE(numlight) |
---|
| 296 | |
---|
| 297 | IF(lwp) THEN ! control print |
---|
| 298 | WRITE(numout,*) ' ' |
---|
| 299 | WRITE(numout,*) ' Initialization of the optical look-up table done' |
---|
| 300 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' |
---|
| 301 | ENDIF |
---|
| 302 | |
---|
| 303 | END SUBROUTINE p4z_opt_init |
---|
| 304 | |
---|
| 305 | |
---|
| 306 | #else |
---|
| 307 | !!====================================================================== |
---|
| 308 | !! Dummy module : No PISCES bio-model |
---|
| 309 | !!====================================================================== |
---|
| 310 | CONTAINS |
---|
| 311 | SUBROUTINE p4z_opt ! Empty routine |
---|
| 312 | END SUBROUTINE p4z_opt |
---|
| 313 | #endif |
---|
| 314 | |
---|
| 315 | !!====================================================================== |
---|
| 316 | END MODULE p4zopt |
---|