[3] | 1 | MODULE traqsr |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE traqsr *** |
---|
| 4 | !! Ocean physics: solar radiation penetration in the top ocean levels |
---|
| 5 | !!====================================================================== |
---|
| 6 | |
---|
| 7 | !!---------------------------------------------------------------------- |
---|
| 8 | !! tra_qsr : trend due to the solar radiation penetration |
---|
| 9 | !! tra_qsr_init : solar radiation penetration initialization |
---|
| 10 | !!---------------------------------------------------------------------- |
---|
| 11 | !! * Modules used |
---|
| 12 | USE oce ! ocean dynamics and active tracers |
---|
| 13 | USE dom_oce ! ocean space and time domain |
---|
[216] | 14 | USE trdmod ! ocean active tracers trends |
---|
| 15 | USE trdmod_oce ! ocean variables trends |
---|
[3] | 16 | USE in_out_manager ! I/O manager |
---|
[187] | 17 | USE trc_oce ! share SMS/Ocean variables |
---|
[3] | 18 | USE ocesbc ! thermohaline fluxes |
---|
| 19 | USE phycst ! physical constants |
---|
[258] | 20 | USE prtctl ! Print control |
---|
[3] | 21 | |
---|
| 22 | IMPLICIT NONE |
---|
| 23 | PRIVATE |
---|
| 24 | |
---|
| 25 | !! * Routine accessibility |
---|
| 26 | PUBLIC tra_qsr ! routine called by step.F90 (ln_traqsr=T) |
---|
| 27 | PUBLIC tra_qsr_init ! routine called by opa.F90 |
---|
| 28 | |
---|
[32] | 29 | !! * Shared module variables |
---|
| 30 | LOGICAL, PUBLIC :: ln_traqsr = .TRUE. !: qsr flag (Default=T) |
---|
[3] | 31 | |
---|
| 32 | !! * Module variables |
---|
[187] | 33 | REAL(wp), PUBLIC :: & !!! * penetrative solar radiation namelist * |
---|
[3] | 34 | rabs = 0.58_wp, & ! fraction associated with xsi1 |
---|
| 35 | xsi1 = 0.35_wp, & ! first depth of extinction |
---|
| 36 | xsi2 = 23.0_wp ! second depth of extinction |
---|
| 37 | ! ! (default values: water type Ib) |
---|
[187] | 38 | LOGICAL :: & |
---|
| 39 | ln_qsr_sms = .false. ! flag to use or not the biological |
---|
| 40 | ! ! fluxes for light |
---|
| 41 | |
---|
[3] | 42 | INTEGER :: & |
---|
| 43 | nksr ! number of levels |
---|
| 44 | REAL(wp), DIMENSION(jpk) :: & |
---|
| 45 | gdsr ! profile of the solar flux penetration |
---|
| 46 | |
---|
| 47 | !! * Substitutions |
---|
| 48 | # include "domzgr_substitute.h90" |
---|
| 49 | # include "vectopt_loop_substitute.h90" |
---|
| 50 | !!---------------------------------------------------------------------- |
---|
[247] | 51 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
---|
| 52 | !! $Header$ |
---|
| 53 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
---|
[3] | 54 | !!---------------------------------------------------------------------- |
---|
| 55 | |
---|
| 56 | CONTAINS |
---|
| 57 | |
---|
| 58 | SUBROUTINE tra_qsr( kt ) |
---|
| 59 | !!---------------------------------------------------------------------- |
---|
| 60 | !! *** ROUTINE tra_qsr *** |
---|
| 61 | !! |
---|
| 62 | !! ** Purpose : Compute the temperature trend due to the solar radiation |
---|
| 63 | !! penetration and add it to the general temperature trend. |
---|
| 64 | !! |
---|
| 65 | !! ** Method : The profile of the solar radiation within the ocean is |
---|
| 66 | !! defined through two penetration length scale (xsr1,xsr2) and a |
---|
| 67 | !! ratio (rabs) as : |
---|
| 68 | !! I(k) = Qsr*( rabs*EXP(z(k)/xsr1) + (1.-rabs)*EXP(z(k)/xsr2) ) |
---|
| 69 | !! The temperature trend associated with the solar radiation |
---|
| 70 | !! penetration is given by : |
---|
| 71 | !! zta = 1/e3t dk[ I ] / (rau0*Cp) |
---|
| 72 | !! At the bottom, boudary condition for the radiation is no flux : |
---|
| 73 | !! all heat which has not been absorbed in the above levels is put |
---|
| 74 | !! in the last ocean level. |
---|
| 75 | !! In z-coordinate case, the computation is only done down to the |
---|
| 76 | !! level where I(k) < 1.e-15 W/m2. In addition, the coefficients |
---|
| 77 | !! used for the computation are calculated one for once as they |
---|
| 78 | !! depends on k only. |
---|
| 79 | !! |
---|
| 80 | !! ** Action : - update ta with the penetrative solar radiation trend |
---|
| 81 | !! - save the trend in ttrd ('key_trdtra') |
---|
| 82 | !! |
---|
| 83 | !! History : |
---|
| 84 | !! 6.0 ! 90-10 (B. Blanke) Original code |
---|
| 85 | !! 7.0 ! 91-11 (G. Madec) |
---|
| 86 | !! ! 96-01 (G. Madec) s-coordinates |
---|
| 87 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
---|
[216] | 88 | !! 9.0 ! 04-08 (C. Talandier) New trends organization |
---|
[3] | 89 | !!---------------------------------------------------------------------- |
---|
[216] | 90 | !! * Modules used |
---|
| 91 | USE oce, ONLY : ztdta => ua, & ! use ua as 3D workspace |
---|
| 92 | ztdsa => va ! use va as 3D workspace |
---|
| 93 | |
---|
[3] | 94 | !! * Arguments |
---|
[216] | 95 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
---|
[3] | 96 | |
---|
| 97 | !! * Local declarations |
---|
[216] | 98 | INTEGER :: ji, jj, jk ! dummy loop indexes |
---|
| 99 | REAL(wp) :: zc0, zta ! temporary scalars |
---|
| 100 | REAL(wp) :: zc1 , zc2 , & ! temporary scalars |
---|
| 101 | zdp1, zdp2 ! |
---|
[3] | 102 | !!---------------------------------------------------------------------- |
---|
| 103 | |
---|
| 104 | IF( kt == nit000 ) THEN |
---|
| 105 | IF ( lwp ) WRITE(numout,*) |
---|
| 106 | IF ( lwp ) WRITE(numout,*) 'tra_qsr : penetration of the surface solar radiation' |
---|
| 107 | IF ( lwp ) WRITE(numout,*) '~~~~~~~' |
---|
| 108 | ENDIF |
---|
| 109 | |
---|
[216] | 110 | ! Save ta and sa trends |
---|
| 111 | IF( l_trdtra ) THEN |
---|
| 112 | ztdta(:,:,:) = ta(:,:,:) |
---|
| 113 | ztdsa(:,:,:) = 0.e0 |
---|
| 114 | ENDIF |
---|
| 115 | |
---|
[187] | 116 | IF( lk_qsr_sms .AND. ln_qsr_sms ) THEN ! Biological fluxes ! |
---|
[216] | 117 | ! ! =================== ! |
---|
[3] | 118 | ! |
---|
| 119 | ! ! =============== |
---|
[187] | 120 | DO jk = 1, jpkm1 ! Horizontal slab |
---|
[3] | 121 | ! ! =============== |
---|
| 122 | DO jj = 2, jpjm1 |
---|
| 123 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[187] | 124 | |
---|
| 125 | zc0 = ro0cpr / fse3t(ji,jj,jk) ! compute the qsr trend |
---|
| 126 | zta = zc0 * ( etot3(ji,jj,jk ) * tmask(ji,jj,jk) & |
---|
| 127 | & - etot3(ji,jj,jk+1) * tmask(ji,jj,jk+1) ) |
---|
| 128 | |
---|
[3] | 129 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta ! add qsr trend to the temperature trend |
---|
[187] | 130 | |
---|
[3] | 131 | END DO |
---|
| 132 | END DO |
---|
| 133 | ! ! =============== |
---|
| 134 | END DO ! End of slab |
---|
| 135 | ! ! =============== |
---|
[216] | 136 | ! save the trends for diagnostic |
---|
| 137 | ! qsr tracers trends |
---|
| 138 | IF( l_trdtra ) THEN |
---|
| 139 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) |
---|
| 140 | CALL trd_mod(ztdta, ztdsa, jpttdqsr, 'TRA', kt) |
---|
| 141 | ENDIF |
---|
| 142 | |
---|
[187] | 143 | ELSE |
---|
[216] | 144 | ! ! =================== ! |
---|
| 145 | IF( lk_sco ) THEN ! s-coordinate ! |
---|
| 146 | ! ! =================== ! |
---|
[3] | 147 | ! |
---|
[187] | 148 | ! ! =============== |
---|
[216] | 149 | DO jk = 1, jpkm1 ! Horizontal slab |
---|
[187] | 150 | ! ! =============== |
---|
| 151 | DO jj = 2, jpjm1 |
---|
| 152 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 153 | |
---|
| 154 | zdp1 = -fsdepw(ji,jj,jk ) ! compute the qsr trend |
---|
| 155 | zdp2 = -fsdepw(ji,jj,jk+1) |
---|
| 156 | zc0 = qsr(ji,jj) * ro0cpr / fse3t(ji,jj,jk) |
---|
| 157 | zc1 = ( rabs * EXP(zdp1/xsi1) + (1.-rabs) * EXP(zdp1/xsi2) ) |
---|
| 158 | zc2 = - ( rabs * EXP(zdp2/xsi1) + (1.-rabs) * EXP(zdp2/xsi2) ) |
---|
| 159 | zta = zc0 * ( zc1 * tmask(ji,jj,jk) + zc2 * tmask(ji,jj,jk+1) ) |
---|
| 160 | |
---|
| 161 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta ! add qsr trend to the temperature trend |
---|
| 162 | |
---|
| 163 | END DO |
---|
[3] | 164 | END DO |
---|
[187] | 165 | ! ! =============== |
---|
| 166 | END DO ! End of slab |
---|
| 167 | ! ! =============== |
---|
[216] | 168 | ! save the trends for diagnostic |
---|
| 169 | ! qsr tracers trends |
---|
| 170 | IF( l_trdtra ) THEN |
---|
| 171 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) |
---|
| 172 | CALL trd_mod(ztdta, ztdsa, jpttdqsr, 'TRA', kt) |
---|
| 173 | ENDIF |
---|
| 174 | ! |
---|
[187] | 175 | ENDIF |
---|
| 176 | ! ! =================== ! |
---|
| 177 | IF( lk_zps ) THEN ! partial steps ! |
---|
| 178 | ! ! =================== ! |
---|
| 179 | ! |
---|
| 180 | ! ! =============== |
---|
| 181 | DO jk = 1, nksr ! Horizontal slab |
---|
| 182 | ! ! =============== |
---|
| 183 | DO jj = 2, jpjm1 |
---|
| 184 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 185 | |
---|
| 186 | zc0 = qsr(ji,jj) / fse3t(ji,jj,jk) ! compute the qsr trend |
---|
| 187 | zta = zc0 * ( gdsr(jk) * tmask(ji,jj,jk) - gdsr(jk+1) * tmask(ji,jj,jk+1) ) |
---|
| 188 | |
---|
| 189 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta ! add qsr trend to the temperature trend |
---|
| 190 | |
---|
| 191 | END DO |
---|
| 192 | END DO |
---|
| 193 | ! ! =============== |
---|
| 194 | END DO ! End of slab |
---|
| 195 | ! ! =============== |
---|
[216] | 196 | ! save the trends for diagnostic |
---|
| 197 | ! qsr tracers trends |
---|
| 198 | IF( l_trdtra ) THEN |
---|
| 199 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) |
---|
| 200 | CALL trd_mod(ztdta, ztdsa, jpttdqsr, 'TRA', kt) |
---|
| 201 | ENDIF |
---|
| 202 | ! |
---|
[187] | 203 | ENDIF |
---|
| 204 | ! ! =================== ! |
---|
| 205 | IF( lk_zco ) THEN ! z-coordinate ! |
---|
| 206 | ! ! =================== ! |
---|
| 207 | ! |
---|
| 208 | ! ! =============== |
---|
| 209 | DO jk = 1, nksr ! Horizontal slab |
---|
| 210 | ! ! =============== |
---|
| 211 | zc0 = 1. / fse3t(1,1,jk) |
---|
| 212 | DO jj = 2, jpjm1 |
---|
| 213 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 214 | ! ! compute qsr forcing trend |
---|
| 215 | zta = qsr(ji,jj) * zc0 * ( gdsr(jk)*tmask(ji,jj,jk) - gdsr(jk+1)*tmask(ji,jj,jk+1) ) |
---|
| 216 | |
---|
| 217 | ta(ji,jj,jk) = ta(ji,jj,jk) + zta ! add qsr trend to the temperature trend |
---|
| 218 | |
---|
| 219 | END DO |
---|
| 220 | END DO |
---|
| 221 | ! ! =============== |
---|
| 222 | END DO ! End of slab |
---|
| 223 | ! ! =============== |
---|
[216] | 224 | ! save the trends for diagnostic |
---|
| 225 | ! qsr tracers trends |
---|
| 226 | IF( l_trdtra ) THEN |
---|
| 227 | ztdta(:,:,:) = ta(:,:,:) - ztdta(:,:,:) |
---|
| 228 | CALL trd_mod(ztdta, ztdsa, jpttdqsr, 'TRA', kt) |
---|
| 229 | ENDIF |
---|
| 230 | ! |
---|
[187] | 231 | ENDIF |
---|
| 232 | ! |
---|
[3] | 233 | ENDIF |
---|
| 234 | |
---|
[187] | 235 | |
---|
[258] | 236 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
| 237 | CALL prt_ctl(tab3d_1=ta, clinfo1=' qsr - Ta: ', mask1=tmask, clinfo3='tra-ta') |
---|
[3] | 238 | ENDIF |
---|
| 239 | |
---|
| 240 | END SUBROUTINE tra_qsr |
---|
| 241 | |
---|
| 242 | |
---|
| 243 | SUBROUTINE tra_qsr_init |
---|
| 244 | !!---------------------------------------------------------------------- |
---|
| 245 | !! *** ROUTINE tra_qsr_init *** |
---|
| 246 | !! |
---|
| 247 | !! ** Purpose : Initialization for the penetrative solar radiation |
---|
| 248 | !! |
---|
| 249 | !! ** Method : The profile of solar radiation within the ocean is set |
---|
| 250 | !! from two length scale of penetration (xsr1,xsr2) and a ratio |
---|
| 251 | !! (rabs). These parameters are read in the namqsr namelist. The |
---|
| 252 | !! default values correspond to clear water (type I in Jerlov' |
---|
| 253 | !! (1968) classification. |
---|
| 254 | !! called by tra_qsr at the first timestep (nit000) |
---|
| 255 | !! |
---|
| 256 | !! ** Action : - initialize xsr1, xsr2 and rabs |
---|
| 257 | !! |
---|
| 258 | !! Reference : |
---|
| 259 | !! Jerlov, N. G., 1968 Optical Oceanography, Elsevier, 194pp. |
---|
| 260 | !! |
---|
| 261 | !! History : |
---|
| 262 | !! 8.5 ! 02-06 (G. Madec) Original code |
---|
| 263 | !!---------------------------------------------------------------------- |
---|
| 264 | !! * Local declarations |
---|
[187] | 265 | INTEGER :: ji,jj,jk, & ! dummy loop index |
---|
| 266 | indic ! temporary integer |
---|
| 267 | REAL(wp) :: zdp1 ! temporary scalar |
---|
[3] | 268 | |
---|
[187] | 269 | NAMELIST/namqsr/ ln_traqsr, rabs, xsi1, xsi2, ln_qsr_sms |
---|
[3] | 270 | !!---------------------------------------------------------------------- |
---|
| 271 | |
---|
| 272 | ! Read Namelist namqsr : ratio and length of penetration |
---|
| 273 | ! -------------------- |
---|
| 274 | REWIND ( numnam ) |
---|
| 275 | READ ( numnam, namqsr ) |
---|
| 276 | |
---|
| 277 | ! Parameter control and print |
---|
| 278 | ! --------------------------- |
---|
| 279 | IF( ln_traqsr ) THEN |
---|
| 280 | IF ( lwp ) THEN |
---|
| 281 | WRITE(numout,*) |
---|
| 282 | WRITE(numout,*) 'tra_qsr_init : penetration of the surface solar radiation' |
---|
| 283 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
[187] | 284 | WRITE(numout,*) ' Namelist namqsr : set the parameter of penetration' |
---|
| 285 | WRITE(numout,*) ' fraction associated with xsi rabs = ',rabs |
---|
| 286 | WRITE(numout,*) ' first depth of extinction xsi1 = ',xsi1 |
---|
| 287 | WRITE(numout,*) ' second depth of extinction xsi2 = ',xsi2 |
---|
| 288 | IF( lk_qsr_sms ) THEN |
---|
| 289 | WRITE(numout,*) ' Biological fluxes for light(Y/N) ln_qsr_sms = ',ln_qsr_sms |
---|
| 290 | ENDIF |
---|
| 291 | WRITE(numout,*) ' ' |
---|
[3] | 292 | END IF |
---|
| 293 | ELSE |
---|
| 294 | IF ( lwp ) THEN |
---|
| 295 | WRITE(numout,*) |
---|
| 296 | WRITE(numout,*) 'tra_qsr_init : NO solar flux penetration' |
---|
| 297 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
| 298 | END IF |
---|
| 299 | ENDIF |
---|
| 300 | |
---|
| 301 | IF( rabs > 1.e0 .OR. rabs < 0.e0 .OR. xsi1 < 0.e0 .OR. xsi2 < 0.e0 ) THEN |
---|
| 302 | IF(lwp) WRITE(numout,cform_err) |
---|
| 303 | IF(lwp) WRITE(numout,*) ' 0<rabs<1, 0<xsi1, or 0<xsi2 not satisfied' |
---|
| 304 | nstop = nstop + 1 |
---|
| 305 | ENDIF |
---|
| 306 | |
---|
| 307 | |
---|
| 308 | ! Initialization |
---|
| 309 | ! -------------- |
---|
| 310 | IF( .NOT. lk_sco ) THEN |
---|
| 311 | ! z-coordinate with or without partial step : same before last ocean w-level everywhere |
---|
[230] | 312 | gdsr(:) = 0.e0 |
---|
[3] | 313 | DO jk = 1, jpk |
---|
| 314 | zdp1 = -fsdepw(1,1,jk) |
---|
| 315 | gdsr(jk) = ro0cpr * ( rabs * EXP( zdp1/xsi1 ) + (1.-rabs) * EXP( zdp1/xsi2 ) ) |
---|
[230] | 316 | IF ( gdsr(jk) <= 1.e-10 ) EXIT |
---|
[3] | 317 | END DO |
---|
| 318 | indic = 0 |
---|
| 319 | DO jk = 1, jpk |
---|
| 320 | IF( gdsr(jk) <= 1.e-15 .AND. indic == 0 ) THEN |
---|
| 321 | gdsr(jk) = 0.e0 |
---|
| 322 | nksr = jk |
---|
| 323 | !!bug Edmee chg res nksr = jk - 1 |
---|
| 324 | indic = 1 |
---|
| 325 | ENDIF |
---|
| 326 | END DO |
---|
| 327 | nksr = MIN( nksr, jpkm1 ) |
---|
| 328 | IF(lwp) THEN |
---|
| 329 | WRITE(numout,*) |
---|
| 330 | WRITE(numout,*) ' - z-coordinate, level max of computation =', nksr |
---|
| 331 | WRITE(numout,*) ' profile of coef. of penetration:' |
---|
| 332 | WRITE(numout,"(' ',7e11.2)") ( gdsr(jk), jk = 1, nksr ) |
---|
| 333 | WRITE(numout,*) |
---|
| 334 | ENDIF |
---|
[187] | 335 | ! Initialisation of Biological fluxes for light here because |
---|
| 336 | ! the optical biological model is call after the dynamical one |
---|
| 337 | IF( lk_qsr_sms .AND. ln_qsr_sms ) THEN |
---|
| 338 | DO jk = 1, jpkm1 |
---|
| 339 | DO jj = 1, jpj |
---|
| 340 | DO ji = 1, jpi |
---|
| 341 | etot3(ji,jj,jk) = qsr(ji,jj) * gdsr(jk) * tmask(ji,jj,jk) / ro0cpr |
---|
| 342 | END DO |
---|
| 343 | END DO |
---|
| 344 | END DO |
---|
| 345 | ENDIF |
---|
| 346 | |
---|
[3] | 347 | ENDIF |
---|
| 348 | |
---|
| 349 | END SUBROUTINE tra_qsr_init |
---|
| 350 | |
---|
| 351 | !!====================================================================== |
---|
| 352 | END MODULE traqsr |
---|