| 1 | MODULE ls_forcing_mod |
|---|
| 2 | |
|---|
| 3 | !--------------------------------------------------------------------------------! |
|---|
| 4 | ! This file is part of PALM. |
|---|
| 5 | ! |
|---|
| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
|---|
| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
|---|
| 8 | ! either version 3 of the License, or (at your option) any later version. |
|---|
| 9 | ! |
|---|
| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
|---|
| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
|---|
| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
|---|
| 13 | ! |
|---|
| 14 | ! You should have received a copy of the GNU General Public License along with |
|---|
| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
|---|
| 16 | ! |
|---|
| 17 | ! Copyright 1997-2014 Leibniz Universitaet Hannover |
|---|
| 18 | !--------------------------------------------------------------------------------! |
|---|
| 19 | ! |
|---|
| 20 | ! Current revisions: |
|---|
| 21 | ! ------------------ |
|---|
| 22 | ! ONLY-attribute added to USE-statements, |
|---|
| 23 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
|---|
| 24 | ! kinds are defined in new module kinds, |
|---|
| 25 | ! comment fields (!:) to be used for variable explanations added to |
|---|
| 26 | ! all variable declaration statements |
|---|
| 27 | ! |
|---|
| 28 | ! Former revisions: |
|---|
| 29 | ! ----------------- |
|---|
| 30 | ! $Id: ls_forcing.f90 1320 2014-03-20 08:40:49Z raasch $ |
|---|
| 31 | ! |
|---|
| 32 | ! 1318 2014-03-17 13:35:16Z raasch |
|---|
| 33 | ! module interfaces removed |
|---|
| 34 | ! |
|---|
| 35 | ! 1299 2014-03-06 13:15:21Z heinze |
|---|
| 36 | ! Ensure a zero large scale vertical velocity at the surface |
|---|
| 37 | ! Bugfix: typo in case of boundary condition in if-clause |
|---|
| 38 | ! |
|---|
| 39 | ! 1276 2014-01-15 13:40:41Z heinze |
|---|
| 40 | ! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars |
|---|
| 41 | ! |
|---|
| 42 | ! 1249 2013-11-06 10:45:47Z heinze |
|---|
| 43 | ! remove call of user module |
|---|
| 44 | ! reformatting |
|---|
| 45 | ! |
|---|
| 46 | ! 1241 2013-10-30 11:36:58Z heinze |
|---|
| 47 | ! Initial revision |
|---|
| 48 | ! |
|---|
| 49 | ! Description: |
|---|
| 50 | ! ------------ |
|---|
| 51 | ! Calculates large scale forcings (geostrophic wind and subsidence velocity) as |
|---|
| 52 | ! well as surfaces fluxes dependent on time given in an external file (LSF_DATA). |
|---|
| 53 | ! Code is based in parts on DALES and UCLA-LES. |
|---|
| 54 | !--------------------------------------------------------------------------------! |
|---|
| 55 | |
|---|
| 56 | PRIVATE |
|---|
| 57 | PUBLIC init_ls_forcing, ls_forcing_surf, ls_forcing_vert |
|---|
| 58 | SAVE |
|---|
| 59 | |
|---|
| 60 | |
|---|
| 61 | CONTAINS |
|---|
| 62 | |
|---|
| 63 | SUBROUTINE init_ls_forcing |
|---|
| 64 | |
|---|
| 65 | USE arrays_3d, & |
|---|
| 66 | ONLY: p_surf, pt_surf, q_surf, qsws_surf, shf_surf, time_surf, & |
|---|
| 67 | time_vert, ug_vert, vg_vert, wsubs_vert, zu |
|---|
| 68 | |
|---|
| 69 | USE control_parameters, & |
|---|
| 70 | ONLY: end_time, lsf_surf, lsf_vert, message_string, nlsf |
|---|
| 71 | |
|---|
| 72 | USE indices, & |
|---|
| 73 | ONLY: nzb, nzt |
|---|
| 74 | |
|---|
| 75 | USE kinds |
|---|
| 76 | |
|---|
| 77 | |
|---|
| 78 | IMPLICIT NONE |
|---|
| 79 | |
|---|
| 80 | CHARACTER(100) :: chmess !: |
|---|
| 81 | CHARACTER(1) :: hash !: |
|---|
| 82 | |
|---|
| 83 | INTEGER(iwp) :: ierrn !: |
|---|
| 84 | INTEGER(iwp) :: finput = 90 !: |
|---|
| 85 | INTEGER(iwp) :: k !: |
|---|
| 86 | INTEGER(iwp) :: t !: |
|---|
| 87 | |
|---|
| 88 | REAL(wp) :: fac !: |
|---|
| 89 | REAL(wp) :: highheight !: |
|---|
| 90 | REAL(wp) :: highug_vert !: |
|---|
| 91 | REAL(wp) :: highvg_vert !: |
|---|
| 92 | REAL(wp) :: highwsubs_vert !: |
|---|
| 93 | REAL(wp) :: lowheight !: |
|---|
| 94 | REAL(wp) :: lowug_vert !: |
|---|
| 95 | REAL(wp) :: lowvg_vert !: |
|---|
| 96 | REAL(wp) :: lowwsubs_vert !: |
|---|
| 97 | REAL(wp) :: r_dummy !: |
|---|
| 98 | |
|---|
| 99 | ALLOCATE( p_surf(0:nlsf), pt_surf(0:nlsf), q_surf(0:nlsf), & |
|---|
| 100 | qsws_surf(0:nlsf), shf_surf(0:nlsf), time_vert(0:nlsf), & |
|---|
| 101 | time_surf(0:nlsf), ug_vert(nzb:nzt+1,0:nlsf), & |
|---|
| 102 | vg_vert(nzb:nzt+1,0:nlsf), wsubs_vert(nzb:nzt+1,0:nlsf) ) |
|---|
| 103 | |
|---|
| 104 | p_surf = 0.0; pt_surf = 0.0; q_surf = 0.0; qsws_surf = 0.0 |
|---|
| 105 | shf_surf = 0.0; time_vert = 0.0; time_surf = 0.0; ug_vert = 0.0 |
|---|
| 106 | vg_vert = 0.0; wsubs_vert = 0.0 |
|---|
| 107 | |
|---|
| 108 | |
|---|
| 109 | OPEN ( finput, FILE='LSF_DATA', STATUS='OLD', & |
|---|
| 110 | FORM='FORMATTED', IOSTAT=ierrn ) |
|---|
| 111 | |
|---|
| 112 | IF ( ierrn /= 0 ) THEN |
|---|
| 113 | message_string = 'file LSF_DATA does not exist' |
|---|
| 114 | CALL message( 'ls_forcing', 'PA0368', 1, 2, 0, 6, 0 ) |
|---|
| 115 | ENDIF |
|---|
| 116 | |
|---|
| 117 | ierrn = 0 |
|---|
| 118 | ! |
|---|
| 119 | !-- First three lines of LSF_DATA contain header |
|---|
| 120 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
|---|
| 121 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
|---|
| 122 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
|---|
| 123 | |
|---|
| 124 | IF ( ierrn /= 0 ) THEN |
|---|
| 125 | message_string = 'errors in file LSF_DATA' |
|---|
| 126 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
|---|
| 127 | ENDIF |
|---|
| 128 | |
|---|
| 129 | ! |
|---|
| 130 | !-- Surface values are read in |
|---|
| 131 | t = 0 |
|---|
| 132 | ierrn = 0 |
|---|
| 133 | |
|---|
| 134 | DO WHILE ( time_surf(t) < end_time ) |
|---|
| 135 | t = t + 1 |
|---|
| 136 | READ ( finput, *, IOSTAT = ierrn ) time_surf(t), shf_surf(t), & |
|---|
| 137 | qsws_surf(t), pt_surf(t), & |
|---|
| 138 | q_surf(t), p_surf(t) |
|---|
| 139 | |
|---|
| 140 | IF ( ierrn < 0 ) THEN |
|---|
| 141 | WRITE ( message_string, * ) 'No time dependent surface variables ',& |
|---|
| 142 | 'in&LSF_DATA for end of run found' |
|---|
| 143 | |
|---|
| 144 | CALL message( 'ls_forcing', 'PA0370', 1, 2, 0, 6, 0 ) |
|---|
| 145 | ENDIF |
|---|
| 146 | ENDDO |
|---|
| 147 | |
|---|
| 148 | |
|---|
| 149 | IF ( time_surf(1) > end_time ) THEN |
|---|
| 150 | WRITE ( message_string, * ) 'No time dependent surface variables in ',& |
|---|
| 151 | '&LSF_DATA for end of run found - ', & |
|---|
| 152 | 'lsf_surf is set to FALSE' |
|---|
| 153 | CALL message( 'ls_forcing', 'PA0371', 0, 0, 0, 6, 0 ) |
|---|
| 154 | lsf_surf = .FALSE. |
|---|
| 155 | ENDIF |
|---|
| 156 | |
|---|
| 157 | ! |
|---|
| 158 | !-- Go to the end of the list with surface variables |
|---|
| 159 | DO WHILE ( ierrn == 0 ) |
|---|
| 160 | READ ( finput, *, IOSTAT = ierrn ) r_dummy |
|---|
| 161 | ENDDO |
|---|
| 162 | |
|---|
| 163 | ! |
|---|
| 164 | !-- Profiles of ug, vg and w_subs are read in (large scale forcing) |
|---|
| 165 | |
|---|
| 166 | t = 0 |
|---|
| 167 | DO WHILE ( time_vert(t) < end_time ) |
|---|
| 168 | t = t + 1 |
|---|
| 169 | hash = "#" |
|---|
| 170 | ierrn = 1 ! not zero |
|---|
| 171 | ! |
|---|
| 172 | !-- Search for the next line consisting of "# time", |
|---|
| 173 | !-- from there onwards the profiles will be read |
|---|
| 174 | DO WHILE ( .NOT. ( hash == "#" .AND. ierrn == 0 ) ) |
|---|
| 175 | READ ( finput, *, IOSTAT=ierrn ) hash, time_vert(t) |
|---|
| 176 | IF ( ierrn < 0 ) THEN |
|---|
| 177 | WRITE( message_string, * ) 'No time dependent vertical profiles',& |
|---|
| 178 | ' in&LSF_DATA for end of run found' |
|---|
| 179 | CALL message( 'ls_forcing', 'PA0372', 1, 2, 0, 6, 0 ) |
|---|
| 180 | ENDIF |
|---|
| 181 | ENDDO |
|---|
| 182 | |
|---|
| 183 | IF ( t == 1 .AND. time_vert(t) > end_time ) EXIT |
|---|
| 184 | |
|---|
| 185 | READ ( finput, *, IOSTAT=ierrn ) lowheight, lowug_vert, lowvg_vert, & |
|---|
| 186 | lowwsubs_vert |
|---|
| 187 | IF ( ierrn /= 0 ) THEN |
|---|
| 188 | message_string = 'errors in file LSF_DATA' |
|---|
| 189 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
|---|
| 190 | ENDIF |
|---|
| 191 | |
|---|
| 192 | READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, highvg_vert, & |
|---|
| 193 | highwsubs_vert |
|---|
| 194 | |
|---|
| 195 | IF ( ierrn /= 0 ) THEN |
|---|
| 196 | message_string = 'errors in file LSF_DATA' |
|---|
| 197 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
|---|
| 198 | ENDIF |
|---|
| 199 | |
|---|
| 200 | |
|---|
| 201 | DO k = nzb, nzt+1 |
|---|
| 202 | IF ( highheight < zu(k) ) THEN |
|---|
| 203 | lowheight = highheight |
|---|
| 204 | lowug_vert = highug_vert |
|---|
| 205 | lowvg_vert = highvg_vert |
|---|
| 206 | lowwsubs_vert = highwsubs_vert |
|---|
| 207 | |
|---|
| 208 | ierrn = 0 |
|---|
| 209 | READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, & |
|---|
| 210 | highvg_vert, highwsubs_vert |
|---|
| 211 | |
|---|
| 212 | IF ( ierrn /= 0 ) THEN |
|---|
| 213 | message_string = 'errors in file LSF_DATA' |
|---|
| 214 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
|---|
| 215 | ENDIF |
|---|
| 216 | |
|---|
| 217 | ENDIF |
|---|
| 218 | |
|---|
| 219 | ! |
|---|
| 220 | !-- Interpolation of prescribed profiles in space |
|---|
| 221 | fac = (highheight-zu(k))/(highheight - lowheight) |
|---|
| 222 | |
|---|
| 223 | ug_vert(k,t) = fac*lowug_vert + (1-fac)*highug_vert |
|---|
| 224 | vg_vert(k,t) = fac*lowvg_vert + (1-fac)*highvg_vert |
|---|
| 225 | wsubs_vert(k,t) = fac*lowwsubs_vert + (1-fac)*highwsubs_vert |
|---|
| 226 | |
|---|
| 227 | ENDDO |
|---|
| 228 | |
|---|
| 229 | ENDDO |
|---|
| 230 | |
|---|
| 231 | ! |
|---|
| 232 | !-- Large scale vertical velocity has to be zero at the surface |
|---|
| 233 | wsubs_vert(nzb,:) = 0.0 |
|---|
| 234 | |
|---|
| 235 | IF ( time_vert(1) > end_time ) THEN |
|---|
| 236 | WRITE ( message_string, * ) 'Time dependent large scale profile ',& |
|---|
| 237 | 'forcing from&LSF_DATA sets in after end of ' ,& |
|---|
| 238 | 'simulation - lsf_vert is set to FALSE' |
|---|
| 239 | CALL message( 'ls_forcing', 'PA0373', 0, 0, 0, 6, 0 ) |
|---|
| 240 | lsf_vert = .FALSE. |
|---|
| 241 | ENDIF |
|---|
| 242 | |
|---|
| 243 | CLOSE( finput ) |
|---|
| 244 | |
|---|
| 245 | |
|---|
| 246 | END SUBROUTINE init_ls_forcing |
|---|
| 247 | |
|---|
| 248 | |
|---|
| 249 | SUBROUTINE ls_forcing_surf ( time ) |
|---|
| 250 | |
|---|
| 251 | USE arrays_3d, & |
|---|
| 252 | ONLY: p_surf, pt_surf, q_surf, qsws, qsws_surf, shf, shf_surf, & |
|---|
| 253 | time_surf, time_vert, ug, ug_vert, vg, vg_vert |
|---|
| 254 | |
|---|
| 255 | USE control_parameters, & |
|---|
| 256 | ONLY: bc_q_b, ibc_pt_b, ibc_q_b, pt_surface, q_surface, & |
|---|
| 257 | surface_pressure |
|---|
| 258 | |
|---|
| 259 | USE kinds |
|---|
| 260 | |
|---|
| 261 | |
|---|
| 262 | IMPLICIT NONE |
|---|
| 263 | |
|---|
| 264 | INTEGER(iwp) :: t !: |
|---|
| 265 | |
|---|
| 266 | REAL(wp) :: fac !: |
|---|
| 267 | REAL(wp), INTENT(in) :: time !: |
|---|
| 268 | |
|---|
| 269 | ! |
|---|
| 270 | !-- Interpolation in time of LSF_DATA at the surface |
|---|
| 271 | t = 1 |
|---|
| 272 | DO WHILE ( time > time_surf(t) ) |
|---|
| 273 | t = t + 1 |
|---|
| 274 | ENDDO |
|---|
| 275 | IF ( time /= time_surf(t) ) THEN |
|---|
| 276 | t = t - 1 |
|---|
| 277 | ENDIF |
|---|
| 278 | |
|---|
| 279 | fac = ( time -time_surf(t) ) / ( time_surf(t+1) - time_surf(t) ) |
|---|
| 280 | |
|---|
| 281 | IF ( ibc_pt_b == 0 ) THEN |
|---|
| 282 | ! |
|---|
| 283 | !-- In case of Dirichlet boundary condition shf must not |
|---|
| 284 | !-- be set - it is calculated via MOST in prandtl_fluxes |
|---|
| 285 | pt_surface = pt_surf(t) + fac * ( pt_surf(t+1) - pt_surf(t) ) |
|---|
| 286 | |
|---|
| 287 | ELSEIF ( ibc_pt_b == 1 ) THEN |
|---|
| 288 | ! |
|---|
| 289 | !-- In case of Neumann boundary condition pt_surface is needed for |
|---|
| 290 | !-- calculation of reference density |
|---|
| 291 | shf = shf_surf(t) + fac * ( shf_surf(t+1) - shf_surf(t) ) |
|---|
| 292 | pt_surface = pt_surf(t) + fac * ( pt_surf(t+1) - pt_surf(t) ) |
|---|
| 293 | |
|---|
| 294 | ENDIF |
|---|
| 295 | |
|---|
| 296 | IF ( ibc_q_b == 0 ) THEN |
|---|
| 297 | ! |
|---|
| 298 | !-- In case of Dirichlet boundary condition qsws must not |
|---|
| 299 | !-- be set - it is calculated via MOST in prandtl_fluxes |
|---|
| 300 | q_surface = q_surf(t) + fac * ( q_surf(t+1) - q_surf(t) ) |
|---|
| 301 | |
|---|
| 302 | ELSEIF ( ibc_q_b == 1 ) THEN |
|---|
| 303 | |
|---|
| 304 | qsws = qsws_surf(t) + fac * ( qsws_surf(t+1) - qsws_surf(t) ) |
|---|
| 305 | |
|---|
| 306 | ENDIF |
|---|
| 307 | |
|---|
| 308 | surface_pressure = p_surf(t) + fac * ( p_surf(t+1) - p_surf(t) ) |
|---|
| 309 | |
|---|
| 310 | END SUBROUTINE ls_forcing_surf |
|---|
| 311 | |
|---|
| 312 | |
|---|
| 313 | SUBROUTINE ls_forcing_vert ( time ) |
|---|
| 314 | |
|---|
| 315 | USE arrays_3d, & |
|---|
| 316 | ONLY: time_vert, ug, ug_vert, vg, vg_vert, w_subs, wsubs_vert |
|---|
| 317 | |
|---|
| 318 | USE control_parameters, & |
|---|
| 319 | ONLY: large_scale_subsidence |
|---|
| 320 | |
|---|
| 321 | USE kinds |
|---|
| 322 | |
|---|
| 323 | |
|---|
| 324 | IMPLICIT NONE |
|---|
| 325 | |
|---|
| 326 | INTEGER(iwp) :: t !: |
|---|
| 327 | |
|---|
| 328 | REAL(wp) :: fac !: |
|---|
| 329 | REAL(wp), INTENT(in) :: time !: |
|---|
| 330 | |
|---|
| 331 | ! |
|---|
| 332 | !-- Interpolation in time of LSF_DATA for ug, vg and w_subs |
|---|
| 333 | t = 1 |
|---|
| 334 | DO WHILE ( time > time_vert(t) ) |
|---|
| 335 | t = t + 1 |
|---|
| 336 | ENDDO |
|---|
| 337 | IF ( time /= time_vert(t) ) THEN |
|---|
| 338 | t = t - 1 |
|---|
| 339 | ENDIF |
|---|
| 340 | |
|---|
| 341 | fac = ( time-time_vert(t) ) / ( time_vert(t+1)-time_vert(t) ) |
|---|
| 342 | |
|---|
| 343 | ug = ug_vert(:,t) + fac * ( ug_vert(:,t+1) - ug_vert(:,t) ) |
|---|
| 344 | vg = vg_vert(:,t) + fac * ( vg_vert(:,t+1) - vg_vert(:,t) ) |
|---|
| 345 | |
|---|
| 346 | IF ( large_scale_subsidence ) THEN |
|---|
| 347 | w_subs = wsubs_vert(:,t) + fac * ( wsubs_vert(:,t+1) - wsubs_vert(:,t) ) |
|---|
| 348 | ENDIF |
|---|
| 349 | |
|---|
| 350 | END SUBROUTINE ls_forcing_vert |
|---|
| 351 | |
|---|
| 352 | |
|---|
| 353 | END MODULE ls_forcing_mod |
|---|
