1 | MODULE zdftke |
---|
2 | !!====================================================================== |
---|
3 | !! *** MODULE zdftke *** |
---|
4 | !! Ocean physics: vertical mixing coefficient compute from the tke |
---|
5 | !! turbulent closure parameterization |
---|
6 | !!===================================================================== |
---|
7 | !! History : 6.0 ! 91-03 (b. blanke) Original code |
---|
8 | !! 7.0 ! 91-11 (G. Madec) bug fix |
---|
9 | !! 7.1 ! 92-10 (G. Madec) new mixing length and eav |
---|
10 | !! 7.2 ! 93-03 (M. Guyon) symetrical conditions |
---|
11 | !! 7.3 ! 94-08 (G. Madec, M. Imbard) npdl flag |
---|
12 | !! 7.5 ! 96-01 (G. Madec) s-coordinates |
---|
13 | !! 8.0 ! 97-07 (G. Madec) lbc |
---|
14 | !! 8.1 ! 99-01 (E. Stretta) new option for the mixing length |
---|
15 | !! 8.5 ! 02-06 (G. Madec) add zdf_tke_init routine |
---|
16 | !! 8.5 ! 02-08 (G. Madec) ri_c and Free form, F90 |
---|
17 | !! 9.0 ! 04-10 (C. Ethe ) 1D configuration |
---|
18 | !! 9.0 ! 02-08 (G. Madec) autotasking optimization |
---|
19 | !! 9.0 ! 06-07 (S. Masson) distributed restart using iom |
---|
20 | !! - ! 2005-07 (C. Ethe, G.Madec) : update TKE physics: |
---|
21 | !! - tke penetration (wind steering) |
---|
22 | !! - suface condition for tke & mixing length |
---|
23 | !! - Langmuir cells |
---|
24 | !! 3.0 ! 2007-11 (G. Madec) avtb_2d, nn_avtb_2d |
---|
25 | !!---------------------------------------------------------------------- |
---|
26 | #if defined key_zdftke || defined key_esopa |
---|
27 | !!---------------------------------------------------------------------- |
---|
28 | !! 'key_zdftke' TKE vertical physics |
---|
29 | !!---------------------------------------------------------------------- |
---|
30 | !!---------------------------------------------------------------------- |
---|
31 | !! zdf_tke : update momentum and tracer Kz from a tke scheme |
---|
32 | !! zdf_tke_init : initialization, namelist read, and parameters control |
---|
33 | !! tke_rst : read/write tke restart in ocean restart file |
---|
34 | !!---------------------------------------------------------------------- |
---|
35 | USE oce ! ocean dynamics and active tracers |
---|
36 | USE dom_oce ! ocean space and time domain |
---|
37 | USE zdf_oce ! ocean vertical physics |
---|
38 | USE sbc_oce ! surface boundary condition: ocean |
---|
39 | USE phycst ! physical constants |
---|
40 | USE zdfmxl ! mixed layer |
---|
41 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
---|
42 | USE prtctl ! Print control |
---|
43 | USE in_out_manager ! I/O manager |
---|
44 | USE iom |
---|
45 | USE restart ! only for lrst_oce |
---|
46 | |
---|
47 | IMPLICIT NONE |
---|
48 | PRIVATE |
---|
49 | |
---|
50 | PUBLIC zdf_tke ! routine called in step module |
---|
51 | |
---|
52 | LOGICAL , PUBLIC, PARAMETER :: lk_zdftke = .TRUE. !: TKE vertical mixing flag |
---|
53 | REAL(wp), PUBLIC :: eboost !: multiplicative coeff of the shear product. |
---|
54 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: en !: now turbulent kinetic energy |
---|
55 | # if defined key_vectopt_memory |
---|
56 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: etmean !: coefficient used for horizontal smoothing |
---|
57 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: eumean, evmean !: at t-, u- and v-points |
---|
58 | # endif |
---|
59 | |
---|
60 | !! * Namelist (namtke) |
---|
61 | LOGICAL , PUBLIC :: ln_rstke = .FALSE. !: =T restart with tke from a run without tke with |
---|
62 | ! ! a none zero initial value for en |
---|
63 | INTEGER , PUBLIC :: nitke = 50 , & !: number of restart iterative loops |
---|
64 | & nmxl = 2 , & !: = 0/1/2/3 flag for the type of mixing length used |
---|
65 | & npdl = 1 , & !: = 0/1/2 flag on prandtl number on vert. eddy coeff. |
---|
66 | & nave = 1 , & !: = 0/1 flag for horizontal average on avt, avmu, avmv |
---|
67 | & navb = 0 !: = 0/1 flag for constant or profile background avt |
---|
68 | REAL(wp), PUBLIC :: ediff = 0.1_wp , & !: coeff. for vertical eddy coef.; avt=ediff*mxl*sqrt(e) |
---|
69 | & ediss = 0.7_wp , & !: coef. of the Kolmogoroff dissipation |
---|
70 | & ebb = 3.75_wp , & !: coef. of the surface input of tke |
---|
71 | & efave = 1._wp , & !: coef. for the tke vert. diff. coeff.; avtke=efave*avm |
---|
72 | & emin = 0.7071e-6_wp , & !: minimum value of tke (m2/s2) |
---|
73 | & emin0 = 1.e-4_wp , & !: surface minimum value of tke (m2/s2) |
---|
74 | & ri_c = 2._wp / 9._wp !: critic Richardson number |
---|
75 | ! !!! ** Namelist (namtke) ** |
---|
76 | INTEGER :: nn_avtb_2d = 1 !: = 0/1 horizontal shape for avtb |
---|
77 | INTEGER :: nn_etau = 0 !: = 0/1/2 tke depth penetration |
---|
78 | INTEGER :: nn_htau = 0 !: = 0/1/2 type of tke profile of penetration |
---|
79 | REAL(wp) :: rn_lmin = 0.4_wp !: surface min value of mixing turbulent length scale |
---|
80 | REAL(wp) :: rn_efr = 1.0_wp !: fraction of TKE surface value which penetrates in the ocean |
---|
81 | LOGICAL :: ln_lsfc = .FALSE. !: mixing length scale surface value as function of wind stress or not |
---|
82 | LOGICAL :: ln_lc = .FALSE. !: Langmuir cells (LC) as a source term of TKE or not |
---|
83 | REAL(wp) :: rn_lc = 0.15_wp !: coef to compute vertical velocity of LC |
---|
84 | |
---|
85 | REAL(wp), DIMENSION (jpi,jpj) :: avtb_2d ! set in tke_init, for other modif than ice |
---|
86 | |
---|
87 | # if defined key_c1d |
---|
88 | ! ! 1D cfg only |
---|
89 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: e_dis, e_mix, & ! dissipation and mixing turbulent lengh scales |
---|
90 | & e_pdl, e_ric ! prandl and local Richardson numbers |
---|
91 | #endif |
---|
92 | |
---|
93 | !! * Substitutions |
---|
94 | # include "domzgr_substitute.h90" |
---|
95 | # include "vectopt_loop_substitute.h90" |
---|
96 | !!---------------------------------------------------------------------- |
---|
97 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
---|
98 | !! $Id$ |
---|
99 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
---|
100 | !!---------------------------------------------------------------------- |
---|
101 | |
---|
102 | CONTAINS |
---|
103 | |
---|
104 | SUBROUTINE zdf_tke( kt ) |
---|
105 | !!---------------------------------------------------------------------- |
---|
106 | !! *** ROUTINE zdf_tke *** |
---|
107 | !! |
---|
108 | !! ** Purpose : Compute the vertical eddy viscosity and diffusivity |
---|
109 | !! coefficients using a 1.5 turbulent closure scheme. |
---|
110 | !! |
---|
111 | !! ** Method : The time evolution of the turbulent kinetic energy |
---|
112 | !! (tke) is computed from a prognostic equation : |
---|
113 | !! d(en)/dt = eboost eav (d(u)/dz)**2 ! shear production |
---|
114 | !! + d( efave eav d(en)/dz )/dz ! diffusion of tke |
---|
115 | !! + grav/rau0 pdl eav d(rau)/dz ! stratif. destruc. |
---|
116 | !! - ediss / emxl en**(2/3) ! dissipation |
---|
117 | !! with the boundary conditions: |
---|
118 | !! surface: en = max( emin0,ebb sqrt(utau^2 + vtau^2) ) |
---|
119 | !! bottom : en = emin |
---|
120 | !! -1- The dissipation and mixing turbulent lengh scales are computed |
---|
121 | !! from the usual diagnostic buoyancy length scale: |
---|
122 | !! mxl= 1/(sqrt(en)/N) WHERE N is the brunt-vaisala frequency |
---|
123 | !! Four cases : |
---|
124 | !! nmxl=0 : mxl bounded by the distance to surface and bottom. |
---|
125 | !! zmxld = zmxlm = mxl |
---|
126 | !! nmxl=1 : mxl bounded by the vertical scale factor. |
---|
127 | !! zmxld = zmxlm = mxl |
---|
128 | !! nmxl=2 : mxl bounded such that the vertical derivative of mxl |
---|
129 | !! is less than 1 (|d/dz(xml)|<1). |
---|
130 | !! zmxld = zmxlm = mxl |
---|
131 | !! nmxl=3 : lup = mxl bounded using |d/dz(xml)|<1 from the surface |
---|
132 | !! to the bottom |
---|
133 | !! ldown = mxl bounded using |d/dz(xml)|<1 from the bottom |
---|
134 | !! to the surface |
---|
135 | !! zmxld = sqrt (lup*ldown) ; zmxlm = min(lup,ldown) |
---|
136 | !! -2- Compute the now Turbulent kinetic energy. The time differencing |
---|
137 | !! is implicit for vertical diffusion term, linearized for kolmo- |
---|
138 | !! goroff dissipation term, and explicit forward for both buoyancy |
---|
139 | !! and dynamic production terms. Thus a tridiagonal linear system is |
---|
140 | !! solved. |
---|
141 | !! Note that - the shear production is multiplied by eboost in order |
---|
142 | !! to set the critic richardson number to ri_c (namelist parameter) |
---|
143 | !! - the destruction by stratification term is multiplied |
---|
144 | !! by the Prandtl number (defined by an empirical funtion of the local |
---|
145 | !! Richardson number) if npdl=1 (namelist parameter) |
---|
146 | !! coefficient (zesh2): |
---|
147 | !! -3- Compute the now vertical eddy vicosity and diffusivity |
---|
148 | !! coefficients from en (before the time stepping) and zmxlm: |
---|
149 | !! avm = max( avtb, ediff*zmxlm*en^1/2 ) |
---|
150 | !! avt = max( avmb, pdl*avm ) (pdl=1 if npdl=0) |
---|
151 | !! eav = max( avmb, avm ) |
---|
152 | !! avt and avm are horizontally averaged to avoid numerical insta- |
---|
153 | !! bilities. |
---|
154 | !! N.B. The computation is done from jk=2 to jpkm1 except for |
---|
155 | !! en. Surface value of avt avmu avmv are set once a time to |
---|
156 | !! their background value in routine zdf_tke_init. |
---|
157 | !! |
---|
158 | !! ** Action : compute en (now turbulent kinetic energy) |
---|
159 | !! update avt, avmu, avmv (before vertical eddy coef.) |
---|
160 | !! |
---|
161 | !! References : Gaspar et al., jgr, 95, 1990, |
---|
162 | !! Blanke and Delecluse, jpo, 1991 |
---|
163 | !!---------------------------------------------------------------------- |
---|
164 | USE oce , zwd => ua, & ! use ua as workspace |
---|
165 | & zmxlm => ta, & ! use ta as workspace |
---|
166 | & zmxld => sa ! use sa as workspace |
---|
167 | USE oce , ztkelc => va ! use va as workspace |
---|
168 | ! |
---|
169 | INTEGER, INTENT(in) :: kt ! ocean time step |
---|
170 | ! |
---|
171 | INTEGER :: ji, jj, jk ! dummy loop arguments |
---|
172 | REAL(wp) :: zmlmin, zbbrau, & ! temporary scalars |
---|
173 | & zfact1, zfact2, zfact3, & ! |
---|
174 | & zrn2, zesurf, & ! |
---|
175 | & ztx2, zty2, zav, & ! |
---|
176 | & zcoef, zcof, zsh2, & ! |
---|
177 | & zdku, zdkv, zpdl, zri, & ! |
---|
178 | & zsqen, zesh2, & ! |
---|
179 | & zemxl, zemlm, zemlp |
---|
180 | INTEGER , DIMENSION(jpi,jpj) :: imlc ! 2D workspace |
---|
181 | REAL(wp) :: zraug, zus, zwlc, zind ! temporary scalar |
---|
182 | REAL(wp), DIMENSION(jpi,jpj) :: zhtau ! 2D workspace |
---|
183 | REAL(wp), DIMENSION(jpi,jpj) :: zhlc ! 2D workspace |
---|
184 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpelc ! 3D workspace |
---|
185 | !!-------------------------------------------------------------------- |
---|
186 | |
---|
187 | IF( kt == nit000 ) CALL zdf_tke_init ! Initialization (first time-step only) |
---|
188 | |
---|
189 | ! ! Local constant initialization |
---|
190 | zmlmin = 0.4 |
---|
191 | zbbrau = .5 * ebb / rau0 |
---|
192 | zfact1 = -.5 * rdt * efave |
---|
193 | zfact2 = 1.5 * rdt * ediss |
---|
194 | zfact3 = 0.5 * rdt * ediss |
---|
195 | |
---|
196 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
197 | ! I. Mixing length |
---|
198 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
199 | |
---|
200 | ! Buoyancy length scale: l=sqrt(2*e/n**2) |
---|
201 | ! --------------------- |
---|
202 | IF( ln_lsfc ) THEN ! lsurf is function of wind stress : l=2.e5*sqrt(utau^2 + vtau^2)/(rau0*g) |
---|
203 | zmxlm(:,:,1) = 0.e0 |
---|
204 | zraug = 0.5 * 2.e5 / ( rau0 * grav ) |
---|
205 | DO jj = 2, jpjm1 |
---|
206 | !CDIR NOVERRCHK |
---|
207 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
208 | ztx2 = utau(ji-1,jj ) + utau(ji,jj) |
---|
209 | zty2 = vtau(ji ,jj-1) + vtau(ji,jj) |
---|
210 | zmxlm(ji,jj,1 ) = zraug * SQRT( ztx2 * ztx2 + zty2 * zty2 ) |
---|
211 | ! set the surface minimum value to rn_lmin |
---|
212 | zmxlm(ji,jj,1 ) = MAX( zmxlm(ji,jj,1) , rn_lmin ) |
---|
213 | END DO |
---|
214 | END DO |
---|
215 | ELSE ! surface set to the minimum value |
---|
216 | zmxlm(:,:,1) = rn_lmin |
---|
217 | ENDIF |
---|
218 | zmxlm(:,:,jpk) = rn_lmin ! bottom set to the minimum value |
---|
219 | !CDIR NOVERRCHK |
---|
220 | DO jk = 2, jpkm1 |
---|
221 | !CDIR NOVERRCHK |
---|
222 | DO jj = 2, jpjm1 |
---|
223 | !CDIR NOVERRCHK |
---|
224 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
225 | zrn2 = MAX( rn2(ji,jj,jk), rsmall ) |
---|
226 | zmxlm(ji,jj,jk) = MAX( SQRT( 2. * en(ji,jj,jk) / zrn2 ), zmlmin ) |
---|
227 | END DO |
---|
228 | END DO |
---|
229 | END DO |
---|
230 | |
---|
231 | ! Physical limits for the mixing length |
---|
232 | ! ------------------------------------- |
---|
233 | zmxld(:,:, 1 ) = zmxlm(:,:,1) ! surface set to the minimum value |
---|
234 | zmxld(:,:,jpk) = rn_lmin ! bottom set to the minimum value |
---|
235 | |
---|
236 | SELECT CASE ( nmxl ) |
---|
237 | |
---|
238 | CASE ( 0 ) ! bounded by the distance to surface and bottom |
---|
239 | DO jk = 2, jpkm1 |
---|
240 | DO jj = 2, jpjm1 |
---|
241 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
242 | zemxl = MIN( fsdepw(ji,jj,jk), zmxlm(ji,jj,jk), & |
---|
243 | & fsdepw(ji,jj,mbathy(ji,jj)) - fsdepw(ji,jj,jk) ) |
---|
244 | zmxlm(ji,jj,jk) = zemxl |
---|
245 | zmxld(ji,jj,jk) = zemxl |
---|
246 | END DO |
---|
247 | END DO |
---|
248 | END DO |
---|
249 | |
---|
250 | CASE ( 1 ) ! bounded by the vertical scale factor |
---|
251 | DO jk = 2, jpkm1 |
---|
252 | DO jj = 2, jpjm1 |
---|
253 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
254 | zemxl = MIN( fse3w(ji,jj,jk), zmxlm(ji,jj,jk) ) |
---|
255 | zmxlm(ji,jj,jk) = zemxl |
---|
256 | zmxld(ji,jj,jk) = zemxl |
---|
257 | END DO |
---|
258 | END DO |
---|
259 | END DO |
---|
260 | |
---|
261 | CASE ( 2 ) ! |dk[xml]| bounded by e3t : |
---|
262 | DO jk = 2, jpkm1 ! from the surface to the bottom : |
---|
263 | DO jj = 2, jpjm1 |
---|
264 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
265 | zmxlm(ji,jj,jk) = MIN( zmxlm(ji,jj,jk-1) + fse3t(ji,jj,jk-1), zmxlm(ji,jj,jk) ) |
---|
266 | END DO |
---|
267 | END DO |
---|
268 | END DO |
---|
269 | DO jk = jpkm1, 2, -1 ! from the bottom to the surface : |
---|
270 | DO jj = 2, jpjm1 |
---|
271 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
272 | zemxl = MIN( zmxlm(ji,jj,jk+1) + fse3t(ji,jj,jk+1), zmxlm(ji,jj,jk) ) |
---|
273 | zmxlm(ji,jj,jk) = zemxl |
---|
274 | zmxld(ji,jj,jk) = zemxl |
---|
275 | END DO |
---|
276 | END DO |
---|
277 | END DO |
---|
278 | |
---|
279 | CASE ( 3 ) ! lup and ldown, |dk[xml]| bounded by e3t : |
---|
280 | DO jk = 2, jpkm1 ! from the surface to the bottom : lup |
---|
281 | DO jj = 2, jpjm1 |
---|
282 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
283 | zmxld(ji,jj,jk) = MIN( zmxld(ji,jj,jk-1) + fse3t(ji,jj,jk-1), zmxlm(ji,jj,jk) ) |
---|
284 | END DO |
---|
285 | END DO |
---|
286 | END DO |
---|
287 | DO jk = jpkm1, 2, -1 ! from the bottom to the surface : ldown |
---|
288 | DO jj = 2, jpjm1 |
---|
289 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
290 | zmxlm(ji,jj,jk) = MIN( zmxlm(ji,jj,jk+1) + fse3t(ji,jj,jk+1), zmxlm(ji,jj,jk) ) |
---|
291 | END DO |
---|
292 | END DO |
---|
293 | END DO |
---|
294 | !CDIR NOVERRCHK |
---|
295 | DO jk = 2, jpkm1 |
---|
296 | !CDIR NOVERRCHK |
---|
297 | DO jj = 2, jpjm1 |
---|
298 | !CDIR NOVERRCHK |
---|
299 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
300 | zemlm = MIN ( zmxld(ji,jj,jk), zmxlm(ji,jj,jk) ) |
---|
301 | zemlp = SQRT( zmxld(ji,jj,jk) * zmxlm(ji,jj,jk) ) |
---|
302 | zmxlm(ji,jj,jk) = zemlm |
---|
303 | zmxld(ji,jj,jk) = zemlp |
---|
304 | END DO |
---|
305 | END DO |
---|
306 | END DO |
---|
307 | |
---|
308 | END SELECT |
---|
309 | |
---|
310 | # if defined key_c1d |
---|
311 | ! save mixing and dissipation turbulent length scales |
---|
312 | e_dis(:,:,:) = zmxld(:,:,:) |
---|
313 | e_mix(:,:,:) = zmxlm(:,:,:) |
---|
314 | # endif |
---|
315 | |
---|
316 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
317 | ! II TKE Langmuir circulation source term |
---|
318 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
319 | IF( ln_lc ) THEN |
---|
320 | ! |
---|
321 | ! Computation of total energy produce by LC : cumulative sum over jk |
---|
322 | zpelc(:,:,1) = MAX( rn2(:,:,1), 0. ) * fsdepw(:,:,1) * fse3w(:,:,1) |
---|
323 | DO jk = 2, jpk |
---|
324 | zpelc(:,:,jk) = zpelc(:,:,jk-1) + MAX( rn2(:,:,jk), 0. ) * fsdepw(:,:,jk) * fse3w(:,:,jk) |
---|
325 | END DO |
---|
326 | ! |
---|
327 | ! Computation of finite Langmuir Circulation depth |
---|
328 | ! Initialization to the number of w ocean point mbathy |
---|
329 | imlc(:,:) = mbathy(:,:) |
---|
330 | DO jk = jpkm1, 2, -1 |
---|
331 | DO jj = 1, jpj |
---|
332 | DO ji = 1, jpi |
---|
333 | ! Last w-level at which zpelc>=0.5*us*us with us=0.016*wind(starting from jpk-1) |
---|
334 | zus = 0.000128 * wndm(ji,jj) * wndm(ji,jj) |
---|
335 | IF( zpelc(ji,jj,jk) > zus ) imlc(ji,jj) = jk |
---|
336 | END DO |
---|
337 | END DO |
---|
338 | END DO |
---|
339 | ! |
---|
340 | ! finite LC depth |
---|
341 | DO jj = 1, jpj |
---|
342 | DO ji = 1, jpi |
---|
343 | zhlc(ji,jj) = fsdepw(ji,jj,imlc(ji,jj)) |
---|
344 | END DO |
---|
345 | END DO |
---|
346 | ! |
---|
347 | # if defined key_c1d |
---|
348 | hlc(:,:) = zhlc(:,:) * tmask(:,:,1) ! save finite Langmuir Circulation depth |
---|
349 | # endif |
---|
350 | ! |
---|
351 | ! TKE Langmuir circulation source term |
---|
352 | !CDIR NOVERRCHK |
---|
353 | DO jk = 2, jpkm1 |
---|
354 | !CDIR NOVERRCHK |
---|
355 | DO jj = 2, jpjm1 |
---|
356 | !CDIR NOVERRCHK |
---|
357 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
358 | ! Stokes drift |
---|
359 | zus = 0.016 * wndm(ji,jj) |
---|
360 | ! computation of vertical velocity due to LC |
---|
361 | zind = 0.5 - SIGN( 0.5, fsdepw(ji,jj,jk) - zhlc(ji,jj) ) |
---|
362 | zwlc = zind * rn_lc * zus * SIN( rpi * fsdepw(ji,jj,jk) / zhlc(ji,jj) ) |
---|
363 | ! TKE Langmuir circulation source term |
---|
364 | ztkelc(ji,jj,jk) = ( zwlc * zwlc * zwlc ) / zhlc(ji,jj) |
---|
365 | END DO |
---|
366 | END DO |
---|
367 | END DO |
---|
368 | ! |
---|
369 | ENDIF |
---|
370 | |
---|
371 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
372 | ! III Tubulent kinetic energy time stepping |
---|
373 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
374 | |
---|
375 | ! 1. Vertical eddy viscosity on tke (put in zmxlm) and first estimate of avt |
---|
376 | ! --------------------------------------------------------------------- |
---|
377 | !CDIR NOVERRCHK |
---|
378 | DO jk = 2, jpkm1 |
---|
379 | !CDIR NOVERRCHK |
---|
380 | DO jj = 2, jpjm1 |
---|
381 | !CDIR NOVERRCHK |
---|
382 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
383 | zsqen = SQRT( en(ji,jj,jk) ) |
---|
384 | zav = ediff * zmxlm(ji,jj,jk) * zsqen |
---|
385 | avt (ji,jj,jk) = MAX( zav, avtb_2d(ji,jj) * avtb(jk) ) * tmask(ji,jj,jk) |
---|
386 | zmxlm(ji,jj,jk) = MAX( zav, avmb(jk) ) * tmask(ji,jj,jk) |
---|
387 | zmxld(ji,jj,jk) = zsqen / zmxld(ji,jj,jk) |
---|
388 | END DO |
---|
389 | END DO |
---|
390 | END DO |
---|
391 | |
---|
392 | ! 2. Surface boundary condition on tke and its eddy viscosity (zmxlm) |
---|
393 | ! ------------------------------------------------- |
---|
394 | ! en(1) = ebb sqrt(utau^2+vtau^2) / rau0 (min value emin0) |
---|
395 | ! zmxlm(1) = avmb(1) and zmxlm(jpk) = 0. |
---|
396 | !CDIR NOVERRCHK |
---|
397 | DO jj = 2, jpjm1 |
---|
398 | !CDIR NOVERRCHK |
---|
399 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
400 | ztx2 = utau(ji-1,jj ) + utau(ji,jj) |
---|
401 | zty2 = vtau(ji ,jj-1) + vtau(ji,jj) |
---|
402 | zesurf = zbbrau * SQRT( ztx2 * ztx2 + zty2 * zty2 ) |
---|
403 | en (ji,jj,1) = MAX( zesurf, emin0 ) * tmask(ji,jj,1) |
---|
404 | zav = ediff * zmxlm(ji,jj,1) * SQRT( en(ji,jj,1) )* tmask(ji,jj,1) |
---|
405 | zmxlm(ji,jj,1) = MAX( zav, avmb(1) ) * tmask(ji,jj,1) |
---|
406 | avt (ji,jj,1) = MAX( zav, avtb(1) * avtb_2d(ji,jj) ) * tmask(ji,jj,1) |
---|
407 | zmxlm(ji,jj,jpk) = 0.e0 |
---|
408 | END DO |
---|
409 | END DO |
---|
410 | |
---|
411 | ! 3. Now Turbulent kinetic energy (output in en) |
---|
412 | ! ------------------------------- |
---|
413 | ! Resolution of a tridiagonal linear system by a "methode de chasse" |
---|
414 | ! computation from level 2 to jpkm1 (e(1) already computed and |
---|
415 | ! e(jpk)=0 ). |
---|
416 | |
---|
417 | SELECT CASE ( npdl ) |
---|
418 | |
---|
419 | CASE ( 0 ) ! No Prandtl number |
---|
420 | DO jk = 2, jpkm1 |
---|
421 | DO jj = 2, jpjm1 |
---|
422 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
423 | ! zesh2 = eboost * (du/dz)^2 - N^2 |
---|
424 | zcoef = 0.5 / fse3w(ji,jj,jk) |
---|
425 | ! shear |
---|
426 | zdku = zcoef * ( ub(ji-1, jj ,jk-1) + ub(ji,jj,jk-1) & |
---|
427 | & - ub(ji-1, jj ,jk ) - ub(ji,jj,jk ) ) |
---|
428 | zdkv = zcoef * ( vb( ji ,jj-1,jk-1) + vb(ji,jj,jk-1) & |
---|
429 | & - vb( ji ,jj-1,jk ) - vb(ji,jj,jk ) ) |
---|
430 | ! coefficient (zesh2) |
---|
431 | zesh2 = eboost * ( zdku*zdku + zdkv*zdkv ) - rn2(ji,jj,jk) |
---|
432 | |
---|
433 | ! Matrix |
---|
434 | zcof = zfact1 * tmask(ji,jj,jk) |
---|
435 | ! lower diagonal |
---|
436 | avmv(ji,jj,jk) = zcof * ( zmxlm(ji,jj,jk ) + zmxlm(ji,jj,jk-1) ) & |
---|
437 | & / ( fse3t(ji,jj,jk-1) * fse3w(ji,jj,jk ) ) |
---|
438 | ! upper diagonal |
---|
439 | avmu(ji,jj,jk) = zcof * ( zmxlm(ji,jj,jk+1) + zmxlm(ji,jj,jk ) ) & |
---|
440 | & / ( fse3t(ji,jj,jk ) * fse3w(ji,jj,jk) ) |
---|
441 | ! diagonal |
---|
442 | zwd(ji,jj,jk) = 1. - avmv(ji,jj,jk) - avmu(ji,jj,jk) + zfact2 * zmxld(ji,jj,jk) |
---|
443 | ! right hand side in en |
---|
444 | IF( .NOT. ln_lc ) THEN |
---|
445 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * zmxld (ji,jj,jk) * en(ji,jj,jk) & |
---|
446 | & + rdt * zmxlm (ji,jj,jk) * zesh2 |
---|
447 | ELSE |
---|
448 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * zmxld (ji,jj,jk) * en(ji,jj,jk) & |
---|
449 | & + rdt * zmxlm (ji,jj,jk) * zesh2 & |
---|
450 | & + rdt * ztkelc(ji,jj,jk) |
---|
451 | ENDIF |
---|
452 | END DO |
---|
453 | END DO |
---|
454 | END DO |
---|
455 | |
---|
456 | CASE ( 1 ) ! Prandtl number |
---|
457 | DO jk = 2, jpkm1 |
---|
458 | DO jj = 2, jpjm1 |
---|
459 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
460 | ! zesh2 = eboost * (du/dz)^2 - pdl * N^2 |
---|
461 | zcoef = 0.5 / fse3w(ji,jj,jk) |
---|
462 | ! shear |
---|
463 | zdku = zcoef * ( ub(ji-1,jj ,jk-1) + ub(ji,jj,jk-1) & |
---|
464 | & - ub(ji-1,jj ,jk ) - ub(ji,jj,jk ) ) |
---|
465 | zdkv = zcoef * ( vb(ji ,jj-1,jk-1) + vb(ji,jj,jk-1) & |
---|
466 | & - vb(ji ,jj-1,jk ) - vb(ji,jj,jk ) ) |
---|
467 | ! square of vertical shear |
---|
468 | zsh2 = zdku * zdku + zdkv * zdkv |
---|
469 | ! local Richardson number |
---|
470 | zri = MAX( rn2(ji,jj,jk), 0. ) / ( zsh2 + 1.e-20 ) |
---|
471 | # if defined key_c1d |
---|
472 | ! save masked local Richardson number in zmxlm array |
---|
473 | e_ric(ji,jj,jk) = zri * tmask(ji,jj,jk) |
---|
474 | # endif |
---|
475 | ! Prandtl number |
---|
476 | zpdl = 1.0 |
---|
477 | IF( zri >= 0.2 ) zpdl = 0.2 / zri |
---|
478 | zpdl = MAX( 0.1, zpdl ) |
---|
479 | ! coefficient (esh2) |
---|
480 | zesh2 = eboost * zsh2 - zpdl * rn2(ji,jj,jk) |
---|
481 | |
---|
482 | ! Matrix |
---|
483 | zcof = zfact1 * tmask(ji,jj,jk) |
---|
484 | ! lower diagonal |
---|
485 | avmv(ji,jj,jk) = zcof * ( zmxlm(ji,jj,jk ) + zmxlm(ji,jj,jk-1) ) & |
---|
486 | & / ( fse3t(ji,jj,jk-1) * fse3w(ji,jj,jk ) ) |
---|
487 | ! upper diagonal |
---|
488 | avmu(ji,jj,jk) = zcof * ( zmxlm(ji,jj,jk+1) + zmxlm(ji,jj,jk ) ) & |
---|
489 | & / ( fse3t(ji,jj,jk ) * fse3w(ji,jj,jk) ) |
---|
490 | ! diagonal |
---|
491 | zwd(ji,jj,jk) = 1. - avmv(ji,jj,jk) - avmu(ji,jj,jk) + zfact2 * zmxld(ji,jj,jk) |
---|
492 | ! right hand side in en |
---|
493 | IF( .NOT. ln_lc ) THEN |
---|
494 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * zmxld (ji,jj,jk) * en (ji,jj,jk) & |
---|
495 | & + rdt * zmxlm (ji,jj,jk) * zesh2 |
---|
496 | ELSE |
---|
497 | en(ji,jj,jk) = en(ji,jj,jk) + zfact3 * zmxld (ji,jj,jk) * en (ji,jj,jk) & |
---|
498 | & + rdt * zmxlm (ji,jj,jk) * zesh2 & |
---|
499 | & + rdt * ztkelc(ji,jj,jk) |
---|
500 | ENDIF |
---|
501 | ! save masked Prandlt number in zmxld array |
---|
502 | zmxld(ji,jj,jk) = zpdl * tmask(ji,jj,jk) |
---|
503 | END DO |
---|
504 | END DO |
---|
505 | END DO |
---|
506 | |
---|
507 | END SELECT |
---|
508 | |
---|
509 | # if defined key_c1d |
---|
510 | ! save masked Prandlt number |
---|
511 | e_pdl(:,:,2:jpkm1) = zmxld(:,:,2:jpkm1) |
---|
512 | e_pdl(:,:, 1) = e_pdl(:,:, 2) |
---|
513 | e_pdl(:,:, jpk) = e_pdl(:,:, jpkm1) |
---|
514 | # endif |
---|
515 | |
---|
516 | ! 4. Matrix inversion from level 2 (tke prescribed at level 1) |
---|
517 | !!-------------------------------- |
---|
518 | ! First recurrence : Dk = Dk - Lk * Uk-1 / Dk-1 |
---|
519 | DO jk = 3, jpkm1 |
---|
520 | DO jj = 2, jpjm1 |
---|
521 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
522 | zwd(ji,jj,jk) = zwd(ji,jj,jk) - avmv(ji,jj,jk) * avmu(ji,jj,jk-1) / zwd(ji,jj,jk-1) |
---|
523 | END DO |
---|
524 | END DO |
---|
525 | END DO |
---|
526 | |
---|
527 | ! Second recurrence : Lk = RHSk - Lk / Dk-1 * Lk-1 |
---|
528 | DO jj = 2, jpjm1 |
---|
529 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
530 | avmv(ji,jj,2) = en(ji,jj,2) - avmv(ji,jj,2) * en(ji,jj,1) ! Surface boudary conditions on tke |
---|
531 | END DO |
---|
532 | END DO |
---|
533 | DO jk = 3, jpkm1 |
---|
534 | DO jj = 2, jpjm1 |
---|
535 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
536 | avmv(ji,jj,jk) = en(ji,jj,jk) - avmv(ji,jj,jk) / zwd(ji,jj,jk-1) *avmv(ji,jj,jk-1) |
---|
537 | END DO |
---|
538 | END DO |
---|
539 | END DO |
---|
540 | |
---|
541 | ! thrid recurrence : Ek = ( Lk - Uk * Ek+1 ) / Dk |
---|
542 | DO jj = 2, jpjm1 |
---|
543 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
544 | en(ji,jj,jpkm1) = avmv(ji,jj,jpkm1) / zwd(ji,jj,jpkm1) |
---|
545 | END DO |
---|
546 | END DO |
---|
547 | DO jk = jpk-2, 2, -1 |
---|
548 | DO jj = 2, jpjm1 |
---|
549 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
550 | en(ji,jj,jk) = ( avmv(ji,jj,jk) - avmu(ji,jj,jk) * en(ji,jj,jk+1) ) / zwd(ji,jj,jk) |
---|
551 | END DO |
---|
552 | END DO |
---|
553 | END DO |
---|
554 | |
---|
555 | ! Save the result in en and set minimum value of tke : emin |
---|
556 | DO jk = 2, jpkm1 |
---|
557 | DO jj = 2, jpjm1 |
---|
558 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
559 | en(ji,jj,jk) = MAX( en(ji,jj,jk), emin ) * tmask(ji,jj,jk) |
---|
560 | END DO |
---|
561 | END DO |
---|
562 | END DO |
---|
563 | |
---|
564 | ! Modify the value of TKE by an exponential assumption |
---|
565 | ! en(ji,jj,jk)=en(ji,jj,jk)+en(ji,jj,1)*EXP(-fsdepw(ji,jj,jk)/ zhtau(ji,jj) ) |
---|
566 | |
---|
567 | SELECT CASE( nn_htau ) ! Choice of H value |
---|
568 | ! |
---|
569 | CASE( 0 ) |
---|
570 | DO jj = 2, jpjm1 |
---|
571 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
572 | zhtau(ji,jj) = 10. |
---|
573 | END DO |
---|
574 | END DO |
---|
575 | ! |
---|
576 | CASE( 1 ) |
---|
577 | DO jj = 2, jpjm1 |
---|
578 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
579 | zhtau(ji,jj) = MAX( 5., MIN( 40., 60.*ABS( SIN( rpi/180. * gphit(ji,jj) ) ) ) ) |
---|
580 | END DO |
---|
581 | END DO |
---|
582 | ! |
---|
583 | CASE( 2 ) |
---|
584 | DO jj = 2, jpjm1 |
---|
585 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
586 | zhtau(ji,jj) = MAX( 5.,6./4.* MIN( 40., 60.*ABS( SIN( rpi/180. * gphit(ji,jj) ) ) ) ) |
---|
587 | END DO |
---|
588 | END DO |
---|
589 | ! |
---|
590 | END SELECT |
---|
591 | |
---|
592 | IF( nn_etau == 1 ) THEN |
---|
593 | DO jk = 2, jpkm1 |
---|
594 | DO jj = 2, jpjm1 |
---|
595 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
596 | en(ji,jj,jk) = en(ji,jj,jk) & |
---|
597 | & + rn_efr * en(ji,jj,1)*EXP( -fsdepw(ji,jj,jk) / zhtau(ji,jj) ) & |
---|
598 | & * ( 1.e0 - fr_i(ji,jj) ) * tmask(ji,jj,jk) |
---|
599 | END DO |
---|
600 | END DO |
---|
601 | END DO |
---|
602 | ELSEIF( nn_etau == 2 ) THEN ! only at the base of the mixed layer |
---|
603 | DO jj = 2, jpjm1 |
---|
604 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
605 | jk = nmln(ji,jj) |
---|
606 | en(ji,jj,jk) = en(ji,jj,jk) & |
---|
607 | & + rn_efr * en(ji,jj,1)*EXP( -fsdepw(ji,jj,jk) / zhtau(ji,jj) ) & |
---|
608 | & * ( 1.e0 - fr_i(ji,jj) ) * tmask(ji,jj,jk) |
---|
609 | END DO |
---|
610 | END DO |
---|
611 | ENDIF |
---|
612 | |
---|
613 | |
---|
614 | ! Lateral boundary conditions on ( avt, en ) (sign unchanged) |
---|
615 | CALL lbc_lnk( en , 'W', 1. ) ; CALL lbc_lnk( avt, 'W', 1. ) |
---|
616 | |
---|
617 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
618 | ! IV. Before vertical eddy vicosity and diffusivity coefficients |
---|
619 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
620 | |
---|
621 | SELECT CASE ( nave ) |
---|
622 | |
---|
623 | CASE ( 0 ) ! no horizontal average |
---|
624 | |
---|
625 | ! Vertical eddy viscosity |
---|
626 | |
---|
627 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
628 | DO jj = 2, jpjm1 |
---|
629 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
630 | avmu(ji,jj,jk) = ( avt (ji,jj,jk) + avt (ji+1,jj ,jk) ) * umask(ji,jj,jk) & |
---|
631 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji+1,jj ,jk) ) |
---|
632 | avmv(ji,jj,jk) = ( avt (ji,jj,jk) + avt (ji ,jj+1,jk) ) * vmask(ji,jj,jk) & |
---|
633 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji ,jj+1,jk) ) |
---|
634 | END DO |
---|
635 | END DO |
---|
636 | END DO |
---|
637 | |
---|
638 | ! Lateral boundary conditions (avmu,avmv) (U- and V- points, sign unchanged) |
---|
639 | CALL lbc_lnk( avmu, 'U', 1. ) ; CALL lbc_lnk( avmv, 'V', 1. ) |
---|
640 | |
---|
641 | CASE ( 1 ) ! horizontal average |
---|
642 | |
---|
643 | ! ( 1/2 1/2 ) |
---|
644 | ! Eddy viscosity: horizontal average: avmu = 1/4 ( 1 1 ) |
---|
645 | ! ( 1/2 1 1/2 ) ( 1/2 1/2 ) |
---|
646 | ! avmv = 1/4 ( 1/2 1 1/2 ) |
---|
647 | |
---|
648 | !! caution vectopt_memory change the solution (last digit of the solver stat) |
---|
649 | # if defined key_vectopt_memory |
---|
650 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
651 | DO jj = 2, jpjm1 |
---|
652 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
653 | avmu(ji,jj,jk) = ( avt(ji,jj ,jk) + avt(ji+1,jj ,jk) & |
---|
654 | & +.5*( avt(ji,jj-1,jk) + avt(ji+1,jj-1,jk) & |
---|
655 | & +avt(ji,jj+1,jk) + avt(ji+1,jj+1,jk) ) ) * eumean(ji,jj,jk) |
---|
656 | |
---|
657 | avmv(ji,jj,jk) = ( avt(ji ,jj,jk) + avt(ji ,jj+1,jk) & |
---|
658 | & +.5*( avt(ji-1,jj,jk) + avt(ji-1,jj+1,jk) & |
---|
659 | & +avt(ji+1,jj,jk) + avt(ji+1,jj+1,jk) ) ) * evmean(ji,jj,jk) |
---|
660 | END DO |
---|
661 | END DO |
---|
662 | END DO |
---|
663 | # else |
---|
664 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
665 | DO jj = 2, jpjm1 |
---|
666 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
667 | avmu(ji,jj,jk) = ( avt (ji,jj ,jk) + avt (ji+1,jj ,jk) & |
---|
668 | & +.5*( avt (ji,jj-1,jk) + avt (ji+1,jj-1,jk) & |
---|
669 | & +avt (ji,jj+1,jk) + avt (ji+1,jj+1,jk) ) ) * umask(ji,jj,jk) & |
---|
670 | & / MAX( 1., tmask(ji,jj ,jk) + tmask(ji+1,jj ,jk) & |
---|
671 | & +.5*( tmask(ji,jj-1,jk) + tmask(ji+1,jj-1,jk) & |
---|
672 | & +tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) ) ) |
---|
673 | |
---|
674 | avmv(ji,jj,jk) = ( avt (ji ,jj,jk) + avt (ji ,jj+1,jk) & |
---|
675 | & +.5*( avt (ji-1,jj,jk) + avt (ji-1,jj+1,jk) & |
---|
676 | & +avt (ji+1,jj,jk) + avt (ji+1,jj+1,jk) ) ) * vmask(ji,jj,jk) & |
---|
677 | & / MAX( 1., tmask(ji ,jj,jk) + tmask(ji ,jj+1,jk) & |
---|
678 | & +.5*( tmask(ji-1,jj,jk) + tmask(ji-1,jj+1,jk) & |
---|
679 | & +tmask(ji+1,jj,jk) + tmask(ji+1,jj+1,jk) ) ) |
---|
680 | END DO |
---|
681 | END DO |
---|
682 | END DO |
---|
683 | # endif |
---|
684 | |
---|
685 | ! Lateral boundary conditions (avmu,avmv) (sign unchanged) |
---|
686 | CALL lbc_lnk( avmu, 'U', 1. ) ; CALL lbc_lnk( avmv, 'V', 1. ) |
---|
687 | |
---|
688 | ! Vertical eddy diffusivity |
---|
689 | ! ------------------------------ |
---|
690 | ! (1 2 1) |
---|
691 | ! horizontal average avt = 1/16 (2 4 2) |
---|
692 | ! (1 2 1) |
---|
693 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
694 | # if defined key_vectopt_memory |
---|
695 | DO jj = 2, jpjm1 |
---|
696 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
697 | avt(ji,jj,jk) = ( avmu(ji,jj,jk) + avmu(ji-1,jj ,jk) & |
---|
698 | & + avmv(ji,jj,jk) + avmv(ji ,jj-1,jk) ) * etmean(ji,jj,jk) |
---|
699 | END DO |
---|
700 | END DO |
---|
701 | # else |
---|
702 | DO jj = 2, jpjm1 |
---|
703 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
704 | avt(ji,jj,jk) = ( avmu (ji,jj,jk) + avmu (ji-1,jj ,jk) & |
---|
705 | & + avmv (ji,jj,jk) + avmv (ji ,jj-1,jk) ) * tmask(ji,jj,jk) & |
---|
706 | & / MAX( 1., umask(ji,jj,jk) + umask(ji-1,jj ,jk) & |
---|
707 | & + vmask(ji,jj,jk) + vmask(ji ,jj-1,jk) ) |
---|
708 | END DO |
---|
709 | END DO |
---|
710 | # endif |
---|
711 | END DO |
---|
712 | |
---|
713 | END SELECT |
---|
714 | |
---|
715 | ! multiplied by the Prandtl number (npdl>1) |
---|
716 | ! ---------------------------------------- |
---|
717 | IF( npdl == 1 ) THEN |
---|
718 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
719 | DO jj = 2, jpjm1 |
---|
720 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
721 | zpdl = zmxld(ji,jj,jk) |
---|
722 | avt(ji,jj,jk) = MAX( zpdl * avt(ji,jj,jk), avtb_2d(ji,jj) * avtb(jk) ) * tmask(ji,jj,jk) |
---|
723 | END DO |
---|
724 | END DO |
---|
725 | END DO |
---|
726 | ENDIF |
---|
727 | |
---|
728 | ! Minimum value on the eddy viscosity |
---|
729 | ! ---------------------------------------- |
---|
730 | DO jk = 2, jpkm1 ! Horizontal slab |
---|
731 | DO jj = 1, jpj |
---|
732 | DO ji = 1, jpi |
---|
733 | avmu(ji,jj,jk) = MAX( avmu(ji,jj,jk), avmb(jk) ) * umask(ji,jj,jk) |
---|
734 | avmv(ji,jj,jk) = MAX( avmv(ji,jj,jk), avmb(jk) ) * vmask(ji,jj,jk) |
---|
735 | END DO |
---|
736 | END DO |
---|
737 | END DO |
---|
738 | |
---|
739 | ! Lateral boundary conditions on avt (sign unchanged) |
---|
740 | ! ------------------------------===== |
---|
741 | CALL lbc_lnk( avt, 'W', 1. ) |
---|
742 | |
---|
743 | ! write en in restart file |
---|
744 | ! ------------------------ |
---|
745 | IF( lrst_oce ) CALL tke_rst( kt, 'WRITE' ) |
---|
746 | |
---|
747 | IF(ln_ctl) THEN |
---|
748 | CALL prt_ctl(tab3d_1=en , clinfo1=' tke - e: ', tab3d_2=avt , clinfo2=' t: ', ovlap=1, kdim=jpk) |
---|
749 | CALL prt_ctl(tab3d_1=avmu, clinfo1=' tke - u: ', mask1=umask, & |
---|
750 | & tab3d_2=avmv, clinfo2= ' v: ', mask2=vmask, ovlap=1, kdim=jpk) |
---|
751 | ENDIF |
---|
752 | |
---|
753 | END SUBROUTINE zdf_tke |
---|
754 | |
---|
755 | |
---|
756 | SUBROUTINE zdf_tke_init |
---|
757 | !!---------------------------------------------------------------------- |
---|
758 | !! *** ROUTINE zdf_tke_init *** |
---|
759 | !! |
---|
760 | !! ** Purpose : Initialization of the vertical eddy diffivity and |
---|
761 | !! viscosity when using a tke turbulent closure scheme |
---|
762 | !! |
---|
763 | !! ** Method : Read the namtke namelist and check the parameters |
---|
764 | !! called at the first timestep (nit000) |
---|
765 | !! |
---|
766 | !! ** input : Namlist namtke |
---|
767 | !! |
---|
768 | !! ** Action : Increase by 1 the nstop flag is setting problem encounter |
---|
769 | !! |
---|
770 | !!---------------------------------------------------------------------- |
---|
771 | USE dynzdf_exp |
---|
772 | USE trazdf_exp |
---|
773 | ! |
---|
774 | # if defined key_vectopt_memory |
---|
775 | ! caution vectopt_memory change the solution (last digit of the solver stat) |
---|
776 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
777 | # else |
---|
778 | INTEGER :: jk ! dummy loop indices |
---|
779 | # endif |
---|
780 | !! |
---|
781 | NAMELIST/namtke/ ln_rstke, ediff, ediss, ebb, efave, emin, emin0, & |
---|
782 | ri_c, nitke, nmxl, npdl, nave, navb, & |
---|
783 | ln_lsfc, rn_lmin, nn_avtb_2d, nn_etau, nn_htau, rn_efr, & |
---|
784 | ln_lc , rn_lc |
---|
785 | !!---------------------------------------------------------------------- |
---|
786 | |
---|
787 | ! Read Namelist namtke : Turbulente Kinetic Energy |
---|
788 | ! -------------------- |
---|
789 | REWIND ( numnam ) |
---|
790 | READ ( numnam, namtke ) |
---|
791 | |
---|
792 | ! Compute boost associated with the Richardson critic |
---|
793 | ! (control values: ri_c = 0.3 ==> eboost=1.25 for npdl=1 or 2) |
---|
794 | ! ( ri_c = 0.222 ==> eboost=1. ) |
---|
795 | eboost = ri_c * ( 2. + ediss / ediff ) / 2. |
---|
796 | |
---|
797 | |
---|
798 | ! Parameter control and print |
---|
799 | ! --------------------------- |
---|
800 | ! Control print |
---|
801 | IF(lwp) THEN |
---|
802 | WRITE(numout,*) |
---|
803 | WRITE(numout,*) 'zdf_tke_init : tke turbulent closure scheme' |
---|
804 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
805 | WRITE(numout,*) ' Namelist namtke : set tke mixing parameters' |
---|
806 | WRITE(numout,*) ' restart with tke from no tke ln_rstke = ', ln_rstke |
---|
807 | WRITE(numout,*) ' coef. to compute avt ediff = ', ediff |
---|
808 | WRITE(numout,*) ' Kolmogoroff dissipation coef. ediss = ', ediss |
---|
809 | WRITE(numout,*) ' tke surface input coef. ebb = ', ebb |
---|
810 | WRITE(numout,*) ' tke diffusion coef. efave = ', efave |
---|
811 | WRITE(numout,*) ' minimum value of tke emin = ', emin |
---|
812 | WRITE(numout,*) ' surface minimum value of tke emin0 = ', emin0 |
---|
813 | WRITE(numout,*) ' number of restart iter loops nitke = ', nitke |
---|
814 | WRITE(numout,*) ' mixing length type nmxl = ', nmxl |
---|
815 | WRITE(numout,*) ' prandl number flag npdl = ', npdl |
---|
816 | WRITE(numout,*) ' horizontal average flag nave = ', nave |
---|
817 | WRITE(numout,*) ' critic Richardson nb ri_c = ', ri_c |
---|
818 | WRITE(numout,*) ' and its associated coeff. eboost = ', eboost |
---|
819 | WRITE(numout,*) ' constant background or profile navb = ', navb |
---|
820 | WRITE(numout,*) ' flag for compu.of bls as fun. of wind ln_lsfc = ', ln_lsfc |
---|
821 | WRITE(numout,*) ' buoyancy lenght scale surface min value rn_lmin = ', rn_lmin |
---|
822 | WRITE(numout,*) ' horizontal variation for avtb nn_avtb_2d = ', nn_avtb_2d |
---|
823 | WRITE(numout,*) ' test param. to add tke induced by wind nn_etau = ', nn_etau |
---|
824 | WRITE(numout,*) ' flag for computation of exp. tke profile nn_htau = ', nn_htau |
---|
825 | WRITE(numout,*) ' % of emin which pene. the thermocline rn_efr = ', rn_efr |
---|
826 | WRITE(numout,*) ' flag to take into acc. Langmuir circ. ln_lc = ', ln_lc |
---|
827 | WRITE(numout,*) ' coef to compute verticla velocity of LC rn_lc = ', rn_lc |
---|
828 | WRITE(numout,*) |
---|
829 | ENDIF |
---|
830 | |
---|
831 | ! Check nmxl and npdl values |
---|
832 | IF( nmxl < 0 .OR. nmxl > 3 ) CALL ctl_stop( ' bad flag: nmxl is < 0 or > 3 ' ) |
---|
833 | IF( npdl < 0 .OR. npdl > 1 ) CALL ctl_stop( ' bad flag: npdl is < 0 or > 1 ' ) |
---|
834 | IF( nn_htau < 0 .OR. nn_htau > 2 ) CALL ctl_stop( 'bad flag: nn_htau is < 0 or > 3 ' ) |
---|
835 | IF( rn_lc < 0.15 .OR. rn_lc > 0.2 ) CALL ctl_stop( 'bad value: rn_lc must be > 0.15 and < 0.2 ' ) |
---|
836 | |
---|
837 | IF( nn_etau == 2 ) CALL zdf_mxl( nit000 ) ! Initialization of nmln |
---|
838 | |
---|
839 | ! Horizontal average : initialization of weighting arrays |
---|
840 | ! ------------------- |
---|
841 | |
---|
842 | SELECT CASE ( nave ) |
---|
843 | |
---|
844 | CASE ( 0 ) ! no horizontal average |
---|
845 | IF(lwp) WRITE(numout,*) ' no horizontal average on avt, avmu, avmv' |
---|
846 | IF(lwp) WRITE(numout,*) ' only in very high horizontal resolution !' |
---|
847 | # if defined key_vectopt_memory |
---|
848 | ! caution vectopt_memory change the solution (last digit of the solver stat) |
---|
849 | ! weighting mean arrays etmean, eumean and evmean |
---|
850 | ! ( 1 1 ) ( 1 ) |
---|
851 | ! avt = 1/4 ( 1 1 ) avmu = 1/2 ( 1 1 ) avmv= 1/2 ( 1 ) |
---|
852 | ! |
---|
853 | etmean(:,:,:) = 0.e0 |
---|
854 | eumean(:,:,:) = 0.e0 |
---|
855 | evmean(:,:,:) = 0.e0 |
---|
856 | |
---|
857 | DO jk = 1, jpkm1 |
---|
858 | DO jj = 2, jpjm1 |
---|
859 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
860 | etmean(ji,jj,jk) = tmask(ji,jj,jk) & |
---|
861 | & / MAX( 1., umask(ji-1,jj ,jk) + umask(ji,jj,jk) & |
---|
862 | & + vmask(ji ,jj-1,jk) + vmask(ji,jj,jk) ) |
---|
863 | |
---|
864 | eumean(ji,jj,jk) = umask(ji,jj,jk) & |
---|
865 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji+1,jj ,jk) ) |
---|
866 | |
---|
867 | evmean(ji,jj,jk) = vmask(ji,jj,jk) & |
---|
868 | & / MAX( 1., tmask(ji,jj,jk) + tmask(ji ,jj+1,jk) ) |
---|
869 | END DO |
---|
870 | END DO |
---|
871 | END DO |
---|
872 | # endif |
---|
873 | |
---|
874 | CASE ( 1 ) ! horizontal average |
---|
875 | IF(lwp) WRITE(numout,*) ' horizontal average on avt, avmu, avmv' |
---|
876 | # if defined key_vectopt_memory |
---|
877 | ! caution vectopt_memory change the solution (last digit of the solver stat) |
---|
878 | ! weighting mean arrays etmean, eumean and evmean |
---|
879 | ! ( 1 1 ) ( 1/2 1/2 ) ( 1/2 1 1/2 ) |
---|
880 | ! avt = 1/4 ( 1 1 ) avmu = 1/4 ( 1 1 ) avmv= 1/4 ( 1/2 1 1/2 ) |
---|
881 | ! ( 1/2 1/2 ) |
---|
882 | etmean(:,:,:) = 0.e0 |
---|
883 | eumean(:,:,:) = 0.e0 |
---|
884 | evmean(:,:,:) = 0.e0 |
---|
885 | |
---|
886 | DO jk = 1, jpkm1 |
---|
887 | DO jj = 2, jpjm1 |
---|
888 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
889 | etmean(ji,jj,jk) = tmask(ji,jj,jk) & |
---|
890 | & / MAX( 1., umask(ji-1,jj ,jk) + umask(ji,jj,jk) & |
---|
891 | & + vmask(ji ,jj-1,jk) + vmask(ji,jj,jk) ) |
---|
892 | |
---|
893 | eumean(ji,jj,jk) = umask(ji,jj,jk) & |
---|
894 | & / MAX( 1., tmask(ji,jj ,jk) + tmask(ji+1,jj ,jk) & |
---|
895 | & +.5 * ( tmask(ji,jj-1,jk) + tmask(ji+1,jj-1,jk) & |
---|
896 | & +tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) ) ) |
---|
897 | |
---|
898 | evmean(ji,jj,jk) = vmask(ji,jj,jk) & |
---|
899 | & / MAX( 1., tmask(ji ,jj,jk) + tmask(ji ,jj+1,jk) & |
---|
900 | & +.5 * ( tmask(ji-1,jj,jk) + tmask(ji-1,jj+1,jk) & |
---|
901 | & +tmask(ji+1,jj,jk) + tmask(ji+1,jj+1,jk) ) ) |
---|
902 | END DO |
---|
903 | END DO |
---|
904 | END DO |
---|
905 | # endif |
---|
906 | |
---|
907 | CASE DEFAULT |
---|
908 | WRITE(ctmp1,*) ' bad flag value for nave = ', nave |
---|
909 | CALL ctl_stop( ctmp1 ) |
---|
910 | |
---|
911 | END SELECT |
---|
912 | |
---|
913 | |
---|
914 | ! Background eddy viscosity and diffusivity profil |
---|
915 | ! ------------------------------------------------ |
---|
916 | IF( navb == 0 ) THEN ! Define avmb, avtb from namelist parameter |
---|
917 | avmb(:) = avm0 |
---|
918 | avtb(:) = avt0 |
---|
919 | ELSE ! Background profile of avt (fit a theoretical/observational profile (Krauss 1990) |
---|
920 | avmb(:) = avm0 |
---|
921 | !!bug this is not valide neither in scoord |
---|
922 | IF(ln_sco .AND. lwp) WRITE(numout,cform_war) |
---|
923 | IF(ln_sco .AND. lwp) WRITE(numout,*) ' avtb profile not valid in sco' |
---|
924 | |
---|
925 | avtb(:) = avt0 + ( 3.0e-4 - 2 * avt0 ) * 1.0e-4 * gdepw_0(:) ! m2/s |
---|
926 | ENDIF |
---|
927 | |
---|
928 | ! ! 2D shape of the avtb |
---|
929 | avtb_2d(:,:) = 1.e0 ! uniform |
---|
930 | ! |
---|
931 | IF( nn_avtb_2d == 1 ) THEN ! decrease avtb in the equatorial band |
---|
932 | ! -15S -5S : linear decrease from avt0 to avt0/10. |
---|
933 | ! -5S +5N : cst value avt0/10. |
---|
934 | ! 5N 15N : linear increase from avt0/10, to avt0 |
---|
935 | WHERE(-15. <= gphit .AND. gphit < -5 ) avtb_2d = (1. - 0.09 * (gphit + 15.)) |
---|
936 | WHERE( -5. <= gphit .AND. gphit < 5 ) avtb_2d = 0.1 |
---|
937 | WHERE( 5. <= gphit .AND. gphit < 15 ) avtb_2d = (0.1 + 0.09 * (gphit - 5.)) |
---|
938 | ENDIF |
---|
939 | |
---|
940 | ! Increase the background in the surface layers |
---|
941 | !!gm the increase is only required when using cen2 advection scheme |
---|
942 | !!gm for the equatorial upwelling. |
---|
943 | avmb(1) = 10. * avmb(1) ; avtb(1) = 10. * avtb(1) |
---|
944 | avmb(2) = 10. * avmb(2) ; avtb(2) = 10. * avtb(2) |
---|
945 | avmb(3) = 5. * avmb(3) ; avtb(3) = 5. * avtb(3) |
---|
946 | avmb(4) = 2.5 * avmb(4) ; avtb(4) = 2.5 * avtb(4) |
---|
947 | |
---|
948 | |
---|
949 | ! Initialization of vertical eddy coef. to the background value |
---|
950 | ! ------------------------------------------------------------- |
---|
951 | DO jk = 1, jpk |
---|
952 | avt (:,:,jk) = avtb(jk) * tmask(:,:,jk) |
---|
953 | avmu(:,:,jk) = avmb(jk) * umask(:,:,jk) |
---|
954 | avmv(:,:,jk) = avmb(jk) * vmask(:,:,jk) |
---|
955 | END DO |
---|
956 | |
---|
957 | |
---|
958 | ! read or initialize turbulent kinetic energy ( en ) |
---|
959 | ! ------------------------------------------------- |
---|
960 | CALL tke_rst( nit000, 'READ' ) |
---|
961 | ! |
---|
962 | END SUBROUTINE zdf_tke_init |
---|
963 | |
---|
964 | |
---|
965 | SUBROUTINE tke_rst( kt, cdrw ) |
---|
966 | !!--------------------------------------------------------------------- |
---|
967 | !! *** ROUTINE ts_rst *** |
---|
968 | !! |
---|
969 | !! ** Purpose : Read or write filtered free surface arrays in restart file |
---|
970 | !! |
---|
971 | !! ** Method : |
---|
972 | !! |
---|
973 | !!---------------------------------------------------------------------- |
---|
974 | INTEGER , INTENT(in) :: kt ! ocean time-step |
---|
975 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
---|
976 | ! |
---|
977 | INTEGER :: jit ! dummy loop indices |
---|
978 | !!---------------------------------------------------------------------- |
---|
979 | ! |
---|
980 | IF( TRIM(cdrw) == 'READ' ) THEN |
---|
981 | IF( ln_rstart ) THEN |
---|
982 | IF( iom_varid( numror, 'en', ldstop = .FALSE. ) > 0 .AND. .NOT.(ln_rstke) ) THEN |
---|
983 | CALL iom_get( numror, jpdom_autoglo, 'en', en ) |
---|
984 | ELSE |
---|
985 | IF( lwp .AND. iom_varid( numror, 'en', ldstop = .FALSE. ) > 0 ) & |
---|
986 | & WRITE(numout,*) ' ===>>>> : previous run without tke scheme' |
---|
987 | IF( lwp .AND. ln_rstke ) WRITE(numout,*) ' ===>>>> : We do not use en from the restart file' |
---|
988 | IF( lwp ) WRITE(numout,*) ' ===>>>> : en set by iterative loop' |
---|
989 | IF( lwp ) WRITE(numout,*) ' ======= =========' |
---|
990 | en (:,:,:) = emin * tmask(:,:,:) |
---|
991 | DO jit = 2, nitke+1 |
---|
992 | CALL zdf_tke( jit ) |
---|
993 | END DO |
---|
994 | ENDIF |
---|
995 | ELSE |
---|
996 | en(:,:,:) = emin * tmask(:,:,:) ! no restart: en set to emin |
---|
997 | ENDIF |
---|
998 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN |
---|
999 | CALL iom_rstput( kt, nitrst, numrow, 'en', en ) |
---|
1000 | ENDIF |
---|
1001 | ! |
---|
1002 | END SUBROUTINE tke_rst |
---|
1003 | |
---|
1004 | #else |
---|
1005 | !!---------------------------------------------------------------------- |
---|
1006 | !! Dummy module : NO TKE scheme |
---|
1007 | !!---------------------------------------------------------------------- |
---|
1008 | LOGICAL, PUBLIC, PARAMETER :: lk_zdftke = .FALSE. !: TKE flag |
---|
1009 | CONTAINS |
---|
1010 | SUBROUTINE zdf_tke( kt ) ! Empty routine |
---|
1011 | WRITE(*,*) 'zdf_tke: You should not have seen this print! error?', kt |
---|
1012 | END SUBROUTINE zdf_tke |
---|
1013 | #endif |
---|
1014 | |
---|
1015 | !!====================================================================== |
---|
1016 | END MODULE zdftke |
---|