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 ! |
---|
17 | USE trc |
---|
18 | USE sms_pisces |
---|
19 | |
---|
20 | IMPLICIT NONE |
---|
21 | PRIVATE |
---|
22 | |
---|
23 | PUBLIC p4z_opt |
---|
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) |
---|
38 | !! $Id$ |
---|
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 | ! --------------------------------- |
---|
210 | ! Euphotic layer bottom level |
---|
211 | neln(:,:) = 1 ! initialisation of EL level |
---|
212 | heup(:,:) = 300. |
---|
213 | |
---|
214 | DO jk = 2, jpkm1 |
---|
215 | DO jj = 1, jpj |
---|
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(:,:) ) |
---|
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 |
---|
261 | trc2d(:,:,jp_pcs0_2d + 10) = heup(:,:) |
---|
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 |
---|
282 | CHARACTER(LEN=20) :: clname |
---|
283 | |
---|
284 | ! FROM THE NEW BIOOPTIC MODEL PROPOSED JM ANDRE, WE READ HERE |
---|
285 | ! A PRECOMPUTED ARRAY CORRESPONDING TO THE ATTENUATION COEFFICIENT |
---|
286 | |
---|
287 | clname = 'kRGB61.txt' |
---|
288 | CALL ctlopn( numlight, clname, 'OLD', 'FORMATTED', 'SEQUENTIAL', & |
---|
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 |
---|