1 | MODULE trcbbc |
---|
2 | !!====================================================================== |
---|
3 | !! *** MODULE trcbbc *** |
---|
4 | !! Ocean passive tracers: bottom boundary condition |
---|
5 | !!====================================================================== |
---|
6 | !! History : 8.1 ! 99-10 (G. Madec) original code |
---|
7 | !! 8.5 ! 02-08 (G. Madec) free form + modules |
---|
8 | !! ! 02-11 (A. Bozec) trc_bbc_init |
---|
9 | !! 9.0 ! 04-03 (C. Ethe) adpated for passive tracers |
---|
10 | !! ! 07-02 (C. Deltel) Diagnose ML trends for passive tracers |
---|
11 | !!---------------------------------------------------------------------- |
---|
12 | #if defined key_top && defined key_trcbbc |
---|
13 | !!---------------------------------------------------------------------- |
---|
14 | !! 'key_trcbbc' geothermal heat flux |
---|
15 | !!---------------------------------------------------------------------- |
---|
16 | !! trc_bbc : update the tracer trend at ocean bottom |
---|
17 | !! trc_bbc_init : initialization of geothermal heat flux trend |
---|
18 | !!---------------------------------------------------------------------- |
---|
19 | USE oce_trc ! ocean dynamics and active tracers variables |
---|
20 | USE trc ! ocean passive tracers variables |
---|
21 | USE prtctl_trc ! Print control for debbuging |
---|
22 | USE trdmld_trc |
---|
23 | USE trdmld_trc_oce |
---|
24 | |
---|
25 | IMPLICIT NONE |
---|
26 | PRIVATE |
---|
27 | |
---|
28 | PUBLIC trc_bbc ! routine called by trcstp.F90 |
---|
29 | |
---|
30 | !! >>>>>>>>>>>>>>>>>>>>>>>>> MOVE TO NAMELIST >>>>>>>>>>>>>>>>>>>>>>>>>> |
---|
31 | LOGICAL, PUBLIC, PARAMETER :: lk_trcbbc = .TRUE. !: bbc flag |
---|
32 | |
---|
33 | INTEGER :: ngeo_trc_flux = 1 !!! ** bbc namelist (nambbc) ** |
---|
34 | ! ! Geothermal flux (0:no flux, 1:constant flux, |
---|
35 | ! ! 2:read in file ) |
---|
36 | REAL(wp) :: ngeo_trc_flux_const = 86.4e-3 !!! ** bbc namlist ** |
---|
37 | ! ! Constant value of geothermal heat flux |
---|
38 | |
---|
39 | INTEGER, DIMENSION(jpi,jpj) :: nbotlevt ! ocean bottom level index at T-pt |
---|
40 | REAL(wp), DIMENSION(jpi,jpj) :: qgh_trd ! geothermal heating trend |
---|
41 | !! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
---|
42 | |
---|
43 | !! * Substitutions |
---|
44 | # include "top_substitute.h90" |
---|
45 | !!---------------------------------------------------------------------- |
---|
46 | !! TOP 1.0 , LOCEAN-IPSL (2005) |
---|
47 | !! $Header: /home/opalod/NEMOCVSROOT/NEMO/TOP_SRC/TRP/trcbbc.F90,v 1.11 2006/09/12 11:10:13 opalod Exp $ |
---|
48 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
---|
49 | !!---------------------------------------------------------------------- |
---|
50 | |
---|
51 | CONTAINS |
---|
52 | |
---|
53 | SUBROUTINE trc_bbc( kt ) |
---|
54 | !!---------------------------------------------------------------------- |
---|
55 | !! *** ROUTINE trc_bbc *** |
---|
56 | !! |
---|
57 | !! ** Purpose : Compute the bottom boundary contition on passive tracer |
---|
58 | !! associated with geothermal heating and add it to the general |
---|
59 | !! trend of tracers equations. |
---|
60 | !! |
---|
61 | !! ** Method : The geothermal heat flux set to its constant value of |
---|
62 | !! 86.4 mW/m2 (Stein and Stein 1992, Huang 1999). |
---|
63 | !! The temperature trend associated to this heat flux through the |
---|
64 | !! ocean bottom can be computed once and is added to the temperature |
---|
65 | !! trend juste above the bottom at each time step: |
---|
66 | !! tra = tra + Qsf / (rau0 rcp e3T) for k= mbathy -1 |
---|
67 | !! Where Qsf is the geothermal heat flux. |
---|
68 | !! |
---|
69 | !! ** Action : - update the temperature trends tra with the trend of |
---|
70 | !! the ocean bottom boundary condition |
---|
71 | !! |
---|
72 | !! References : |
---|
73 | !! Stein, C. A., and S. Stein, 1992, Nature, 359, 123-129. |
---|
74 | !!---------------------------------------------------------------------- |
---|
75 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
76 | |
---|
77 | #if defined key_vectopt_loop |
---|
78 | INTEGER :: ji, jn ! dummy loop indices |
---|
79 | #else |
---|
80 | INTEGER :: ji, jj, jn ! dummy loop indices |
---|
81 | #endif |
---|
82 | REAL(wp) :: ztra ! temporary scalar |
---|
83 | CHARACTER (len=22) :: charout |
---|
84 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrtrd ! trends |
---|
85 | !!---------------------------------------------------------------------- |
---|
86 | |
---|
87 | ! 0. Initialization |
---|
88 | ! ----------------- |
---|
89 | |
---|
90 | IF( kt == nittrc000 ) CALL trc_bbc_init |
---|
91 | |
---|
92 | IF( l_trdtrc ) ALLOCATE( ztrtrd(jpi,jpj,jpk) ) |
---|
93 | |
---|
94 | |
---|
95 | ! 1. Add the geothermal heat flux trend on temperature |
---|
96 | ! ---------------------------------------------------- |
---|
97 | |
---|
98 | SELECT CASE ( ngeo_trc_flux ) |
---|
99 | |
---|
100 | CASE ( 1:2 ) ! geothermal heat flux |
---|
101 | |
---|
102 | ! ! =========== |
---|
103 | DO jn = 1, jptra ! tracer loop |
---|
104 | ! ! =========== |
---|
105 | IF( l_trdtrc ) ztrtrd(:,:,:) = tra(:,:,:,jn) ! save trends |
---|
106 | |
---|
107 | |
---|
108 | #if defined key_vectopt_loop |
---|
109 | DO ji = jpi+2, jpij-jpi-1 ! vector opt. (forced unrolling) |
---|
110 | tra(ji,1,nbotlevt(ji,1),jn) = tra(ji,1,nbotlevt(ji,1),jn) + qgh_trd(ji,1) |
---|
111 | END DO |
---|
112 | #else |
---|
113 | DO jj = 2, jpjm1 |
---|
114 | DO ji = 2, jpim1 |
---|
115 | tra(ji,jj,nbotlevt(ji,jj),jn) = tra(ji,jj,nbotlevt(ji,jj),jn) + qgh_trd(ji,jj) |
---|
116 | END DO |
---|
117 | END DO |
---|
118 | #endif |
---|
119 | |
---|
120 | IF( l_trdtrc ) THEN |
---|
121 | ztrtrd(:,:,:) = tra(:,:,:,jn) - ztrtrd(:,:,:) |
---|
122 | IF (luttrd(jn)) CALL trd_mod_trc(ztrtrd, jn, jptrc_trd_bbc, kt) |
---|
123 | END IF |
---|
124 | |
---|
125 | ! ! =========== |
---|
126 | END DO ! tracer loop |
---|
127 | ! ! =========== |
---|
128 | |
---|
129 | IF( l_trdtrc ) DEALLOCATE( ztrtrd ) |
---|
130 | |
---|
131 | IF( ln_ctl ) THEN ! print mean trends (used for debugging) |
---|
132 | WRITE(charout, FMT="('bbc')") |
---|
133 | CALL prt_ctl_trc_info(charout) |
---|
134 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm,clinfo2='trd') |
---|
135 | ENDIF |
---|
136 | END SELECT |
---|
137 | |
---|
138 | END SUBROUTINE trc_bbc |
---|
139 | |
---|
140 | |
---|
141 | SUBROUTINE trc_bbc_init |
---|
142 | !!---------------------------------------------------------------------- |
---|
143 | !! *** ROUTINE trc_bbc_init *** |
---|
144 | !! |
---|
145 | !! ** Purpose : Compute once for all the trend associated with geo- |
---|
146 | !! thermal heating that will be applied at each time step at the |
---|
147 | !! bottom ocean level |
---|
148 | !! |
---|
149 | !! ** Method : Read the namtopbbc namelist and check the parameters. |
---|
150 | !! called at the first time step (nittrc000) |
---|
151 | !! |
---|
152 | !! ** Input : - Namlist namtopbbc |
---|
153 | !! - NetCDF file : passivetrc_geothermal_heating.nc |
---|
154 | !! ( if necessary ) |
---|
155 | !! |
---|
156 | !! ** Action : - compute the heat geothermal trend qgh_trd |
---|
157 | !! - compute the bottom ocean level nbotlevt |
---|
158 | !!---------------------------------------------------------------------- |
---|
159 | USE iom |
---|
160 | |
---|
161 | CHARACTER (len=32) :: clname |
---|
162 | INTEGER :: ji, jj ! dummy loop indices |
---|
163 | INTEGER :: inum ! temporary logical unit |
---|
164 | |
---|
165 | NAMELIST/namtopbbc/ngeo_trc_flux, ngeo_trc_flux_const |
---|
166 | !!---------------------------------------------------------------------- |
---|
167 | |
---|
168 | ! Read Namelist nambbc : bottom momentum boundary condition |
---|
169 | REWIND ( numnat ) |
---|
170 | READ ( numnat, namtopbbc ) |
---|
171 | |
---|
172 | ! Control print |
---|
173 | IF(lwp) WRITE(numout,*) |
---|
174 | IF(lwp) WRITE(numout,*) 'trc_bbc : Passive tracers Bottom Boundary Condition (bbc)' |
---|
175 | IF(lwp) WRITE(numout,*) '~~~~~~~ Geothermal heatflux' |
---|
176 | IF(lwp) WRITE(numout,*) ' Namelist namtrcbbc : set bbc parameters' |
---|
177 | IF(lwp) WRITE(numout,*) |
---|
178 | IF(lwp) WRITE(numout,*) ' Geothermal flux ngeo_trc_flux = ', ngeo_trc_flux |
---|
179 | IF(lwp) WRITE(numout,*) ' Constant geothermal flux ngeo_trc_flux_const = ', ngeo_trc_flux_const |
---|
180 | IF(lwp) WRITE(numout,*) |
---|
181 | |
---|
182 | ! level of the ocean bottom at T-point |
---|
183 | |
---|
184 | DO jj = 1, jpj |
---|
185 | DO ji = 1, jpi |
---|
186 | nbotlevt(ji,jj) = MAX( mbathy(ji,jj)-1, 1 ) |
---|
187 | END DO |
---|
188 | END DO |
---|
189 | |
---|
190 | ! initialization of geothermal heat flux |
---|
191 | |
---|
192 | SELECT CASE ( ngeo_trc_flux ) |
---|
193 | |
---|
194 | CASE ( 0 ) ! no geothermal heat flux |
---|
195 | IF(lwp) WRITE(numout,*) |
---|
196 | IF(lwp) WRITE(numout,*) ' *** no geothermal heat flux' |
---|
197 | |
---|
198 | CASE ( 1 ) ! constant flux |
---|
199 | IF(lwp) WRITE(numout,*) ' *** constant heat flux = ', ngeo_trc_flux_const |
---|
200 | qgh_trd(:,:) = ngeo_trc_flux_const |
---|
201 | |
---|
202 | CASE ( 2 ) ! variable geothermal heat flux |
---|
203 | ! read the geothermal fluxes in mW/m2 |
---|
204 | CALL iom_open ( 'geothermal_heating_trc.nc', inum ) |
---|
205 | CALL iom_get ( inum, jpdom_data, 'heatflow', qgh_trd ) |
---|
206 | CALL iom_close (inum) |
---|
207 | |
---|
208 | qgh_trd(:,:) = qgh_trd(:,:) * 1.e-3 ! conversion in W/m2 |
---|
209 | |
---|
210 | CASE DEFAULT |
---|
211 | WRITE(ctmp1,*) ' bad flag value for ngeo_flux = ', ngeo_flux |
---|
212 | CALL ctl_stop( ctmp1 ) |
---|
213 | |
---|
214 | END SELECT |
---|
215 | |
---|
216 | ! geothermal heat flux trend |
---|
217 | |
---|
218 | SELECT CASE ( ngeo_trc_flux ) |
---|
219 | |
---|
220 | CASE ( 1:2 ) ! geothermal heat flux |
---|
221 | |
---|
222 | #if defined key_vectopt_loop |
---|
223 | DO ji = 1, jpij ! vector opt. (forced unrolling) |
---|
224 | qgh_trd(ji,1) = ro0cpr * qgh_trd(ji,1) / fse3t(ji,1,nbotlevt(ji,1) ) |
---|
225 | END DO |
---|
226 | #else |
---|
227 | DO jj = 1, jpj |
---|
228 | DO ji = 1, jpi |
---|
229 | qgh_trd(ji,jj) = ro0cpr * qgh_trd(ji,jj) / fse3t(ji,jj,nbotlevt(ji,jj)) |
---|
230 | END DO |
---|
231 | END DO |
---|
232 | #endif |
---|
233 | |
---|
234 | END SELECT |
---|
235 | |
---|
236 | END SUBROUTINE trc_bbc_init |
---|
237 | |
---|
238 | #else |
---|
239 | !!---------------------------------------------------------------------- |
---|
240 | !! Default option Empty module |
---|
241 | !!---------------------------------------------------------------------- |
---|
242 | LOGICAL, PUBLIC, PARAMETER :: lk_trcbbc = .FALSE. !: bbc flag |
---|
243 | CONTAINS |
---|
244 | SUBROUTINE trc_bbc( kt ) ! Empty routine |
---|
245 | INTEGER, INTENT(in) :: kt |
---|
246 | WRITE(*,*) 'trc_bbc: You should not have seen this print! error?', kt |
---|
247 | END SUBROUTINE trc_bbc |
---|
248 | #endif |
---|
249 | |
---|
250 | !!====================================================================== |
---|
251 | END MODULE trcbbc |
---|