[1873] | 1 | !> @file diffusion_s.f90 |
---|
[2000] | 2 | !------------------------------------------------------------------------------! |
---|
[1036] | 3 | ! This file is part of PALM. |
---|
| 4 | ! |
---|
[2000] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
---|
| 6 | ! terms of the GNU General Public License as published by the Free Software |
---|
| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
---|
| 8 | ! version. |
---|
[1036] | 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 | ! |
---|
[2101] | 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
---|
[2000] | 18 | !------------------------------------------------------------------------------! |
---|
[1036] | 19 | ! |
---|
[484] | 20 | ! Current revisions: |
---|
[1001] | 21 | ! ------------------ |
---|
[2232] | 22 | ! Adjustments to new topography and surface concept |
---|
[1341] | 23 | ! |
---|
[1321] | 24 | ! Former revisions: |
---|
| 25 | ! ----------------- |
---|
| 26 | ! $Id: diffusion_s.f90 2232 2017-05-30 17:47:52Z suehring $ |
---|
| 27 | ! |
---|
[2119] | 28 | ! 2118 2017-01-17 16:38:49Z raasch |
---|
| 29 | ! OpenACC version of subroutine removed |
---|
| 30 | ! |
---|
[2038] | 31 | ! 2037 2016-10-26 11:15:40Z knoop |
---|
| 32 | ! Anelastic approximation implemented |
---|
| 33 | ! |
---|
[2001] | 34 | ! 2000 2016-08-20 18:09:15Z knoop |
---|
| 35 | ! Forced header and separation lines into 80 columns |
---|
| 36 | ! |
---|
[1874] | 37 | ! 1873 2016-04-18 14:50:06Z maronga |
---|
| 38 | ! Module renamed (removed _mod) |
---|
[2118] | 39 | ! |
---|
[1851] | 40 | ! 1850 2016-04-08 13:29:27Z maronga |
---|
| 41 | ! Module renamed |
---|
| 42 | ! |
---|
[1692] | 43 | ! 1691 2015-10-26 16:17:44Z maronga |
---|
| 44 | ! Formatting corrections. |
---|
| 45 | ! |
---|
[1683] | 46 | ! 1682 2015-10-07 23:56:08Z knoop |
---|
| 47 | ! Code annotations made doxygen readable |
---|
| 48 | ! |
---|
[1375] | 49 | ! 1374 2014-04-25 12:55:07Z raasch |
---|
| 50 | ! missing variables added to ONLY list |
---|
| 51 | ! |
---|
[1341] | 52 | ! 1340 2014-03-25 19:45:13Z kanani |
---|
| 53 | ! REAL constants defined as wp-kind |
---|
| 54 | ! |
---|
[1321] | 55 | ! 1320 2014-03-20 08:40:49Z raasch |
---|
[1320] | 56 | ! ONLY-attribute added to USE-statements, |
---|
| 57 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
---|
| 58 | ! kinds are defined in new module kinds, |
---|
| 59 | ! revision history before 2012 removed, |
---|
| 60 | ! comment fields (!:) to be used for variable explanations added to |
---|
| 61 | ! all variable declaration statements |
---|
[1321] | 62 | ! |
---|
[1258] | 63 | ! 1257 2013-11-08 15:18:40Z raasch |
---|
| 64 | ! openacc loop and loop vector clauses removed |
---|
| 65 | ! |
---|
[1132] | 66 | ! 1128 2013-04-12 06:19:32Z raasch |
---|
| 67 | ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, |
---|
| 68 | ! j_north |
---|
| 69 | ! |
---|
[1093] | 70 | ! 1092 2013-02-02 11:24:22Z raasch |
---|
| 71 | ! unused variables removed |
---|
| 72 | ! |
---|
[1037] | 73 | ! 1036 2012-10-22 13:43:42Z raasch |
---|
| 74 | ! code put under GPL (PALM 3.9) |
---|
| 75 | ! |
---|
[1017] | 76 | ! 1015 2012-09-27 09:23:24Z raasch |
---|
| 77 | ! accelerator version (*_acc) added |
---|
| 78 | ! |
---|
[1011] | 79 | ! 1010 2012-09-20 07:59:54Z raasch |
---|
| 80 | ! cpp switch __nopointer added for pointer free version |
---|
| 81 | ! |
---|
[1002] | 82 | ! 1001 2012-09-13 14:08:46Z raasch |
---|
| 83 | ! some arrays comunicated by module instead of parameter list |
---|
| 84 | ! |
---|
[1] | 85 | ! Revision 1.1 2000/04/13 14:54:02 schroeter |
---|
| 86 | ! Initial revision |
---|
| 87 | ! |
---|
| 88 | ! |
---|
| 89 | ! Description: |
---|
| 90 | ! ------------ |
---|
[1682] | 91 | !> Diffusion term of scalar quantities (temperature and water content) |
---|
[1] | 92 | !------------------------------------------------------------------------------! |
---|
[1682] | 93 | MODULE diffusion_s_mod |
---|
| 94 | |
---|
[1] | 95 | |
---|
| 96 | PRIVATE |
---|
[2118] | 97 | PUBLIC diffusion_s |
---|
[1] | 98 | |
---|
| 99 | INTERFACE diffusion_s |
---|
| 100 | MODULE PROCEDURE diffusion_s |
---|
| 101 | MODULE PROCEDURE diffusion_s_ij |
---|
| 102 | END INTERFACE diffusion_s |
---|
| 103 | |
---|
| 104 | CONTAINS |
---|
| 105 | |
---|
| 106 | |
---|
| 107 | !------------------------------------------------------------------------------! |
---|
[1682] | 108 | ! Description: |
---|
| 109 | ! ------------ |
---|
| 110 | !> Call for all grid points |
---|
[1] | 111 | !------------------------------------------------------------------------------! |
---|
[2232] | 112 | SUBROUTINE diffusion_s( s, s_flux_def_h_up, s_flux_def_h_down, & |
---|
| 113 | s_flux_t, & |
---|
| 114 | s_flux_lsm_h_up, s_flux_usm_h_up, & |
---|
| 115 | s_flux_def_v_north, s_flux_def_v_south, & |
---|
| 116 | s_flux_def_v_east, s_flux_def_v_west, & |
---|
| 117 | s_flux_lsm_v_north, s_flux_lsm_v_south, & |
---|
| 118 | s_flux_lsm_v_east, s_flux_lsm_v_west, & |
---|
| 119 | s_flux_usm_v_north, s_flux_usm_v_south, & |
---|
| 120 | s_flux_usm_v_east, s_flux_usm_v_west ) |
---|
[1] | 121 | |
---|
[1320] | 122 | USE arrays_3d, & |
---|
[2037] | 123 | ONLY: ddzu, ddzw, kh, tend, drho_air, rho_air_zw |
---|
[1320] | 124 | |
---|
| 125 | USE control_parameters, & |
---|
| 126 | ONLY: use_surface_fluxes, use_top_fluxes |
---|
| 127 | |
---|
| 128 | USE grid_variables, & |
---|
[2232] | 129 | ONLY: ddx2, ddy2 |
---|
[1320] | 130 | |
---|
| 131 | USE indices, & |
---|
[1374] | 132 | ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, & |
---|
[2232] | 133 | nzt, wall_flags_0 |
---|
[1320] | 134 | |
---|
| 135 | USE kinds |
---|
[1] | 136 | |
---|
[2232] | 137 | USE surface_mod, & |
---|
| 138 | ONLY : surf_def_h, surf_def_v, surf_lsm_h, surf_lsm_v, surf_usm_h, & |
---|
| 139 | surf_usm_v |
---|
| 140 | |
---|
[1] | 141 | IMPLICIT NONE |
---|
| 142 | |
---|
[2232] | 143 | INTEGER(iwp) :: i !< running index x direction |
---|
| 144 | INTEGER(iwp) :: j !< running index y direction |
---|
| 145 | INTEGER(iwp) :: k !< running index z direction |
---|
| 146 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 147 | INTEGER(iwp) :: surf_e !< End index of surface elements at (j,i)-gridpoint |
---|
| 148 | INTEGER(iwp) :: surf_s !< Start index of surface elements at (j,i)-gridpoint |
---|
| 149 | |
---|
| 150 | REAL(wp) :: flag !< flag to mask topography grid points |
---|
| 151 | REAL(wp) :: mask_bottom !< flag to mask vertical upward-facing surface |
---|
| 152 | REAL(wp) :: mask_east !< flag to mask vertical surface east of the grid point |
---|
| 153 | REAL(wp) :: mask_north !< flag to mask vertical surface north of the grid point |
---|
| 154 | REAL(wp) :: mask_south !< flag to mask vertical surface south of the grid point |
---|
| 155 | REAL(wp) :: mask_west !< flag to mask vertical surface west of the grid point |
---|
| 156 | REAL(wp) :: mask_top !< flag to mask vertical downward-facing surface |
---|
| 157 | |
---|
| 158 | REAL(wp), DIMENSION(1:surf_def_v(0)%ns) :: s_flux_def_v_north !< flux at north-facing vertical default-type surfaces |
---|
| 159 | REAL(wp), DIMENSION(1:surf_def_v(1)%ns) :: s_flux_def_v_south !< flux at south-facing vertical default-type surfaces |
---|
| 160 | REAL(wp), DIMENSION(1:surf_def_v(2)%ns) :: s_flux_def_v_east !< flux at east-facing vertical default-type surfaces |
---|
| 161 | REAL(wp), DIMENSION(1:surf_def_v(3)%ns) :: s_flux_def_v_west !< flux at west-facing vertical default-type surfaces |
---|
| 162 | REAL(wp), DIMENSION(1:surf_def_h(0)%ns) :: s_flux_def_h_up !< flux at horizontal upward-facing default-type surfaces |
---|
| 163 | REAL(wp), DIMENSION(1:surf_def_h(1)%ns) :: s_flux_def_h_down !< flux at horizontal donwward-facing default-type surfaces |
---|
| 164 | REAL(wp), DIMENSION(1:surf_lsm_h%ns) :: s_flux_lsm_h_up !< flux at horizontal upward-facing natural-type surfaces |
---|
| 165 | REAL(wp), DIMENSION(1:surf_lsm_v(0)%ns) :: s_flux_lsm_v_north !< flux at north-facing vertical natural-type surfaces |
---|
| 166 | REAL(wp), DIMENSION(1:surf_lsm_v(1)%ns) :: s_flux_lsm_v_south !< flux at south-facing vertical natural-type surfaces |
---|
| 167 | REAL(wp), DIMENSION(1:surf_lsm_v(2)%ns) :: s_flux_lsm_v_east !< flux at east-facing vertical natural-type surfaces |
---|
| 168 | REAL(wp), DIMENSION(1:surf_lsm_v(3)%ns) :: s_flux_lsm_v_west !< flux at west-facing vertical natural-type surfaces |
---|
| 169 | REAL(wp), DIMENSION(1:surf_usm_h%ns) :: s_flux_usm_h_up !< flux at horizontal upward-facing urban-type surfaces |
---|
| 170 | REAL(wp), DIMENSION(1:surf_usm_v(0)%ns) :: s_flux_usm_v_north !< flux at north-facing vertical urban-type surfaces |
---|
| 171 | REAL(wp), DIMENSION(1:surf_usm_v(1)%ns) :: s_flux_usm_v_south !< flux at south-facing vertical urban-type surfaces |
---|
| 172 | REAL(wp), DIMENSION(1:surf_usm_v(2)%ns) :: s_flux_usm_v_east !< flux at east-facing vertical urban-type surfaces |
---|
| 173 | REAL(wp), DIMENSION(1:surf_usm_v(3)%ns) :: s_flux_usm_v_west !< flux at west-facing vertical urban-type surfaces |
---|
| 174 | REAL(wp), DIMENSION(1:surf_def_h(2)%ns) :: s_flux_t !< flux at model top |
---|
[1010] | 175 | #if defined( __nopointer ) |
---|
[1682] | 176 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: s !< |
---|
[1010] | 177 | #else |
---|
[1682] | 178 | REAL(wp), DIMENSION(:,:,:), POINTER :: s !< |
---|
[1010] | 179 | #endif |
---|
[1] | 180 | |
---|
| 181 | DO i = nxl, nxr |
---|
| 182 | DO j = nys,nyn |
---|
| 183 | ! |
---|
| 184 | !-- Compute horizontal diffusion |
---|
[2232] | 185 | DO k = nzb+1, nzt |
---|
| 186 | ! |
---|
| 187 | !-- Predetermine flag to mask topography and wall-bounded grid points |
---|
| 188 | flag = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i), 0 ) ) |
---|
| 189 | ! |
---|
| 190 | !-- Predetermine flag to mask wall-bounded grid points, equivalent to |
---|
| 191 | !-- former s_outer array |
---|
| 192 | mask_west = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i-1), 0 ) ) |
---|
| 193 | mask_east = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i+1), 0 ) ) |
---|
| 194 | mask_south = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j-1,i), 0 ) ) |
---|
| 195 | mask_north = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j+1,i), 0 ) ) |
---|
[1] | 196 | |
---|
[1320] | 197 | tend(k,j,i) = tend(k,j,i) & |
---|
[1340] | 198 | + 0.5_wp * ( & |
---|
[2232] | 199 | mask_east * ( kh(k,j,i) + kh(k,j,i+1) ) & |
---|
| 200 | * ( s(k,j,i+1) - s(k,j,i) ) & |
---|
| 201 | - mask_west * ( kh(k,j,i) + kh(k,j,i-1) ) & |
---|
| 202 | * ( s(k,j,i) - s(k,j,i-1) ) & |
---|
| 203 | ) * ddx2 * flag & |
---|
[1340] | 204 | + 0.5_wp * ( & |
---|
[2232] | 205 | mask_north * ( kh(k,j,i) + kh(k,j+1,i) ) & |
---|
| 206 | * ( s(k,j+1,i) - s(k,j,i) ) & |
---|
| 207 | - mask_south * ( kh(k,j,i) + kh(k,j-1,i) ) & |
---|
| 208 | * ( s(k,j,i) - s(k,j-1,i) ) & |
---|
| 209 | ) * ddy2 * flag |
---|
[1] | 210 | ENDDO |
---|
| 211 | |
---|
| 212 | ! |
---|
[2232] | 213 | !-- Apply prescribed horizontal wall heatflux where necessary. First, |
---|
| 214 | !-- determine start and end index for respective (j,i)-index. Please |
---|
| 215 | !-- note, in the flat case following loop will not be entered, as |
---|
| 216 | !-- surf_s=1 and surf_e=0. Furtermore, note, no vertical natural surfaces |
---|
| 217 | !-- so far. |
---|
| 218 | !-- First, for default-type surfaces |
---|
| 219 | !-- North-facing vertical default-type surfaces |
---|
| 220 | surf_s = surf_def_v(0)%start_index(j,i) |
---|
| 221 | surf_e = surf_def_v(0)%end_index(j,i) |
---|
| 222 | DO m = surf_s, surf_e |
---|
| 223 | k = surf_def_v(0)%k(m) |
---|
| 224 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_north(m) * ddy2 |
---|
| 225 | ENDDO |
---|
| 226 | ! |
---|
| 227 | !-- South-facing vertical default-type surfaces |
---|
| 228 | surf_s = surf_def_v(1)%start_index(j,i) |
---|
| 229 | surf_e = surf_def_v(1)%end_index(j,i) |
---|
| 230 | DO m = surf_s, surf_e |
---|
| 231 | k = surf_def_v(1)%k(m) |
---|
| 232 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_south(m) * ddy2 |
---|
| 233 | ENDDO |
---|
| 234 | ! |
---|
| 235 | !-- East-facing vertical default-type surfaces |
---|
| 236 | surf_s = surf_def_v(2)%start_index(j,i) |
---|
| 237 | surf_e = surf_def_v(2)%end_index(j,i) |
---|
| 238 | DO m = surf_s, surf_e |
---|
| 239 | k = surf_def_v(2)%k(m) |
---|
| 240 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_east(m) * ddx2 |
---|
| 241 | ENDDO |
---|
| 242 | ! |
---|
| 243 | !-- West-facing vertical default-type surfaces |
---|
| 244 | surf_s = surf_def_v(3)%start_index(j,i) |
---|
| 245 | surf_e = surf_def_v(3)%end_index(j,i) |
---|
| 246 | DO m = surf_s, surf_e |
---|
| 247 | k = surf_def_v(3)%k(m) |
---|
| 248 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_west(m) * ddx2 |
---|
| 249 | ENDDO |
---|
| 250 | ! |
---|
| 251 | !-- Now, for natural-type surfaces. |
---|
| 252 | !-- North-facing |
---|
| 253 | surf_s = surf_lsm_v(0)%start_index(j,i) |
---|
| 254 | surf_e = surf_lsm_v(0)%end_index(j,i) |
---|
| 255 | DO m = surf_s, surf_e |
---|
| 256 | k = surf_lsm_v(0)%k(m) |
---|
| 257 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_north(m) * ddy2 |
---|
| 258 | ENDDO |
---|
| 259 | ! |
---|
| 260 | !-- South-facing |
---|
| 261 | surf_s = surf_lsm_v(1)%start_index(j,i) |
---|
| 262 | surf_e = surf_lsm_v(1)%end_index(j,i) |
---|
| 263 | DO m = surf_s, surf_e |
---|
| 264 | k = surf_lsm_v(1)%k(m) |
---|
| 265 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_south(m) * ddy2 |
---|
| 266 | ENDDO |
---|
| 267 | ! |
---|
| 268 | !-- East-facing |
---|
| 269 | surf_s = surf_lsm_v(2)%start_index(j,i) |
---|
| 270 | surf_e = surf_lsm_v(2)%end_index(j,i) |
---|
| 271 | DO m = surf_s, surf_e |
---|
| 272 | k = surf_lsm_v(2)%k(m) |
---|
| 273 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_east(m) * ddx2 |
---|
| 274 | ENDDO |
---|
| 275 | ! |
---|
| 276 | !-- West-facing |
---|
| 277 | surf_s = surf_lsm_v(3)%start_index(j,i) |
---|
| 278 | surf_e = surf_lsm_v(3)%end_index(j,i) |
---|
| 279 | DO m = surf_s, surf_e |
---|
| 280 | k = surf_lsm_v(3)%k(m) |
---|
| 281 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_west(m) * ddx2 |
---|
| 282 | ENDDO |
---|
| 283 | ! |
---|
| 284 | !-- Now, for urban-type surfaces. |
---|
| 285 | !-- North-facing |
---|
| 286 | surf_s = surf_usm_v(0)%start_index(j,i) |
---|
| 287 | surf_e = surf_usm_v(0)%end_index(j,i) |
---|
| 288 | DO m = surf_s, surf_e |
---|
| 289 | k = surf_usm_v(0)%k(m) |
---|
| 290 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_north(m) * ddy2 |
---|
| 291 | ENDDO |
---|
| 292 | ! |
---|
| 293 | !-- South-facing |
---|
| 294 | surf_s = surf_usm_v(1)%start_index(j,i) |
---|
| 295 | surf_e = surf_usm_v(1)%end_index(j,i) |
---|
| 296 | DO m = surf_s, surf_e |
---|
| 297 | k = surf_usm_v(1)%k(m) |
---|
| 298 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_south(m) * ddy2 |
---|
| 299 | ENDDO |
---|
| 300 | ! |
---|
| 301 | !-- East-facing |
---|
| 302 | surf_s = surf_usm_v(2)%start_index(j,i) |
---|
| 303 | surf_e = surf_usm_v(2)%end_index(j,i) |
---|
| 304 | DO m = surf_s, surf_e |
---|
| 305 | k = surf_usm_v(2)%k(m) |
---|
| 306 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_east(m) * ddx2 |
---|
| 307 | ENDDO |
---|
| 308 | ! |
---|
| 309 | !-- West-facing |
---|
| 310 | surf_s = surf_usm_v(3)%start_index(j,i) |
---|
| 311 | surf_e = surf_usm_v(3)%end_index(j,i) |
---|
| 312 | DO m = surf_s, surf_e |
---|
| 313 | k = surf_usm_v(3)%k(m) |
---|
| 314 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_west(m) * ddx2 |
---|
| 315 | ENDDO |
---|
[1] | 316 | |
---|
| 317 | ! |
---|
| 318 | !-- Compute vertical diffusion. In case that surface fluxes have been |
---|
[19] | 319 | !-- prescribed or computed at bottom and/or top, index k starts/ends at |
---|
[2232] | 320 | !-- nzb+2 or nzt-1, respectively. Model top is also mask if top flux |
---|
| 321 | !-- is given. |
---|
| 322 | DO k = nzb+1, nzt |
---|
| 323 | ! |
---|
| 324 | !-- Determine flags to mask topography below and above. Flag 0 is |
---|
| 325 | !-- used to mask topography in general, and flag 8 implies |
---|
| 326 | !-- information about use_surface_fluxes. Flag 9 is used to control |
---|
| 327 | !-- flux at model top. |
---|
| 328 | mask_bottom = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 329 | BTEST( wall_flags_0(k-1,j,i), 8 ) ) |
---|
| 330 | mask_top = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 331 | BTEST( wall_flags_0(k+1,j,i), 8 ) ) * & |
---|
| 332 | MERGE( 1.0_wp, 0.0_wp, & |
---|
| 333 | BTEST( wall_flags_0(k+1,j,i), 9 ) ) |
---|
| 334 | flag = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 335 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
---|
[1] | 336 | |
---|
[1320] | 337 | tend(k,j,i) = tend(k,j,i) & |
---|
[1340] | 338 | + 0.5_wp * ( & |
---|
[2232] | 339 | ( kh(k,j,i) + kh(k+1,j,i) ) * & |
---|
| 340 | ( s(k+1,j,i)-s(k,j,i) ) * ddzu(k+1) & |
---|
[2037] | 341 | * rho_air_zw(k) & |
---|
[2232] | 342 | * mask_top & |
---|
| 343 | - ( kh(k,j,i) + kh(k-1,j,i) ) * & |
---|
| 344 | ( s(k,j,i)-s(k-1,j,i) ) * ddzu(k) & |
---|
[2037] | 345 | * rho_air_zw(k-1) & |
---|
[2232] | 346 | * mask_bottom & |
---|
| 347 | ) * ddzw(k) * drho_air(k) & |
---|
| 348 | * flag |
---|
[1] | 349 | ENDDO |
---|
| 350 | |
---|
| 351 | ! |
---|
[2232] | 352 | !-- Vertical diffusion at horizontal walls. |
---|
[1] | 353 | IF ( use_surface_fluxes ) THEN |
---|
[2232] | 354 | ! |
---|
| 355 | !-- Default-type surfaces, upward-facing |
---|
| 356 | surf_s = surf_def_h(0)%start_index(j,i) |
---|
| 357 | surf_e = surf_def_h(0)%end_index(j,i) |
---|
| 358 | DO m = surf_s, surf_e |
---|
[1] | 359 | |
---|
[2232] | 360 | k = surf_def_h(0)%k(m) |
---|
| 361 | tend(k,j,i) = tend(k,j,i) + s_flux_def_h_up(m) & |
---|
| 362 | * ddzw(k) * drho_air(k) |
---|
[1] | 363 | |
---|
[2232] | 364 | ENDDO |
---|
| 365 | ! |
---|
| 366 | !-- Default-type surfaces, downward-facing |
---|
| 367 | surf_s = surf_def_h(1)%start_index(j,i) |
---|
| 368 | surf_e = surf_def_h(1)%end_index(j,i) |
---|
| 369 | DO m = surf_s, surf_e |
---|
[1] | 370 | |
---|
[2232] | 371 | k = surf_def_h(1)%k(m) |
---|
| 372 | tend(k,j,i) = tend(k,j,i) + s_flux_def_h_down(m) & |
---|
| 373 | * ddzw(k) * drho_air(k) |
---|
[1] | 374 | |
---|
[2232] | 375 | ENDDO |
---|
[19] | 376 | ! |
---|
[2232] | 377 | !-- Natural-type surfaces, upward-facing |
---|
| 378 | surf_s = surf_lsm_h%start_index(j,i) |
---|
| 379 | surf_e = surf_lsm_h%end_index(j,i) |
---|
| 380 | DO m = surf_s, surf_e |
---|
[19] | 381 | |
---|
[2232] | 382 | k = surf_lsm_h%k(m) |
---|
| 383 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_h_up(m) & |
---|
| 384 | * ddzw(k) * drho_air(k) |
---|
[19] | 385 | |
---|
[2232] | 386 | ENDDO |
---|
| 387 | ! |
---|
| 388 | !-- Urban-type surfaces, upward-facing |
---|
| 389 | surf_s = surf_usm_h%start_index(j,i) |
---|
| 390 | surf_e = surf_usm_h%end_index(j,i) |
---|
| 391 | DO m = surf_s, surf_e |
---|
[19] | 392 | |
---|
[2232] | 393 | k = surf_usm_h%k(m) |
---|
| 394 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_h_up(m) & |
---|
| 395 | * ddzw(k) * drho_air(k) |
---|
| 396 | |
---|
| 397 | ENDDO |
---|
| 398 | |
---|
[19] | 399 | ENDIF |
---|
[2232] | 400 | ! |
---|
| 401 | !-- Vertical diffusion at the last computational gridpoint along z-direction |
---|
| 402 | IF ( use_top_fluxes ) THEN |
---|
| 403 | surf_s = surf_def_h(2)%start_index(j,i) |
---|
| 404 | surf_e = surf_def_h(2)%end_index(j,i) |
---|
| 405 | DO m = surf_s, surf_e |
---|
[19] | 406 | |
---|
[2232] | 407 | k = surf_def_h(2)%k(m) |
---|
| 408 | tend(k,j,i) = tend(k,j,i) & |
---|
| 409 | + ( - s_flux_t(m) ) * ddzw(k) * drho_air(k) |
---|
| 410 | ENDDO |
---|
| 411 | ENDIF |
---|
| 412 | |
---|
[1] | 413 | ENDDO |
---|
| 414 | ENDDO |
---|
| 415 | |
---|
| 416 | END SUBROUTINE diffusion_s |
---|
| 417 | |
---|
| 418 | !------------------------------------------------------------------------------! |
---|
[1682] | 419 | ! Description: |
---|
| 420 | ! ------------ |
---|
| 421 | !> Call for grid point i,j |
---|
[1] | 422 | !------------------------------------------------------------------------------! |
---|
[2232] | 423 | SUBROUTINE diffusion_s_ij( i, j, s, & |
---|
| 424 | s_flux_def_h_up, s_flux_def_h_down, & |
---|
| 425 | s_flux_t, & |
---|
| 426 | s_flux_lsm_h_up, s_flux_usm_h_up, & |
---|
| 427 | s_flux_def_v_north, s_flux_def_v_south, & |
---|
| 428 | s_flux_def_v_east, s_flux_def_v_west, & |
---|
| 429 | s_flux_lsm_v_north, s_flux_lsm_v_south, & |
---|
| 430 | s_flux_lsm_v_east, s_flux_lsm_v_west, & |
---|
| 431 | s_flux_usm_v_north, s_flux_usm_v_south, & |
---|
| 432 | s_flux_usm_v_east, s_flux_usm_v_west ) |
---|
[1] | 433 | |
---|
[1320] | 434 | USE arrays_3d, & |
---|
[2037] | 435 | ONLY: ddzu, ddzw, kh, tend, drho_air, rho_air_zw |
---|
[1320] | 436 | |
---|
| 437 | USE control_parameters, & |
---|
| 438 | ONLY: use_surface_fluxes, use_top_fluxes |
---|
| 439 | |
---|
| 440 | USE grid_variables, & |
---|
[2232] | 441 | ONLY: ddx2, ddy2 |
---|
[1320] | 442 | |
---|
| 443 | USE indices, & |
---|
[2232] | 444 | ONLY: nxlg, nxrg, nyng, nysg, nzb, nzt, wall_flags_0 |
---|
[1320] | 445 | |
---|
| 446 | USE kinds |
---|
[1] | 447 | |
---|
[2232] | 448 | USE surface_mod, & |
---|
| 449 | ONLY : surf_def_h, surf_def_v, surf_lsm_h, surf_lsm_v, surf_usm_h, & |
---|
| 450 | surf_usm_v |
---|
| 451 | |
---|
[1] | 452 | IMPLICIT NONE |
---|
| 453 | |
---|
[2232] | 454 | INTEGER(iwp) :: i !< running index x direction |
---|
| 455 | INTEGER(iwp) :: j !< running index y direction |
---|
| 456 | INTEGER(iwp) :: k !< running index z direction |
---|
| 457 | INTEGER(iwp) :: m !< running index surface elements |
---|
| 458 | INTEGER(iwp) :: surf_e !< End index of surface elements at (j,i)-gridpoint |
---|
| 459 | INTEGER(iwp) :: surf_s !< Start index of surface elements at (j,i)-gridpoint |
---|
| 460 | |
---|
| 461 | REAL(wp) :: flag !< flag to mask topography grid points |
---|
| 462 | REAL(wp) :: mask_bottom !< flag to mask vertical upward-facing surface |
---|
| 463 | REAL(wp) :: mask_east !< flag to mask vertical surface east of the grid point |
---|
| 464 | REAL(wp) :: mask_north !< flag to mask vertical surface north of the grid point |
---|
| 465 | REAL(wp) :: mask_south !< flag to mask vertical surface south of the grid point |
---|
| 466 | REAL(wp) :: mask_west !< flag to mask vertical surface west of the grid point |
---|
| 467 | REAL(wp) :: mask_top !< flag to mask vertical downward-facing surface |
---|
| 468 | |
---|
| 469 | REAL(wp), DIMENSION(1:surf_def_v(0)%ns) :: s_flux_def_v_north !< flux at north-facing vertical default-type surfaces |
---|
| 470 | REAL(wp), DIMENSION(1:surf_def_v(1)%ns) :: s_flux_def_v_south !< flux at south-facing vertical default-type surfaces |
---|
| 471 | REAL(wp), DIMENSION(1:surf_def_v(2)%ns) :: s_flux_def_v_east !< flux at east-facing vertical default-type surfaces |
---|
| 472 | REAL(wp), DIMENSION(1:surf_def_v(3)%ns) :: s_flux_def_v_west !< flux at west-facing vertical default-type surfaces |
---|
| 473 | REAL(wp), DIMENSION(1:surf_def_h(0)%ns) :: s_flux_def_h_up !< flux at horizontal upward-facing default-type surfaces |
---|
| 474 | REAL(wp), DIMENSION(1:surf_def_h(1)%ns) :: s_flux_def_h_down !< flux at horizontal donwward-facing default-type surfaces |
---|
| 475 | REAL(wp), DIMENSION(1:surf_lsm_h%ns) :: s_flux_lsm_h_up !< flux at horizontal upward-facing natural-type surfaces |
---|
| 476 | REAL(wp), DIMENSION(1:surf_lsm_v(0)%ns) :: s_flux_lsm_v_north !< flux at north-facing vertical urban-type surfaces |
---|
| 477 | REAL(wp), DIMENSION(1:surf_lsm_v(1)%ns) :: s_flux_lsm_v_south !< flux at south-facing vertical urban-type surfaces |
---|
| 478 | REAL(wp), DIMENSION(1:surf_lsm_v(2)%ns) :: s_flux_lsm_v_east !< flux at east-facing vertical urban-type surfaces |
---|
| 479 | REAL(wp), DIMENSION(1:surf_lsm_v(3)%ns) :: s_flux_lsm_v_west !< flux at west-facing vertical urban-type surfaces |
---|
| 480 | REAL(wp), DIMENSION(1:surf_usm_h%ns) :: s_flux_usm_h_up !< flux at horizontal upward-facing urban-type surfaces |
---|
| 481 | REAL(wp), DIMENSION(1:surf_usm_v(0)%ns) :: s_flux_usm_v_north !< flux at north-facing vertical urban-type surfaces |
---|
| 482 | REAL(wp), DIMENSION(1:surf_usm_v(1)%ns) :: s_flux_usm_v_south !< flux at south-facing vertical urban-type surfaces |
---|
| 483 | REAL(wp), DIMENSION(1:surf_usm_v(2)%ns) :: s_flux_usm_v_east !< flux at east-facing vertical urban-type surfaces |
---|
| 484 | REAL(wp), DIMENSION(1:surf_usm_v(3)%ns) :: s_flux_usm_v_west !< flux at west-facing vertical urban-type surfaces |
---|
| 485 | REAL(wp), DIMENSION(1:surf_def_h(2)%ns) :: s_flux_t !< flux at model top |
---|
[1010] | 486 | #if defined( __nopointer ) |
---|
[1682] | 487 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: s !< |
---|
[1010] | 488 | #else |
---|
[1682] | 489 | REAL(wp), DIMENSION(:,:,:), POINTER :: s !< |
---|
[1010] | 490 | #endif |
---|
[1] | 491 | |
---|
| 492 | ! |
---|
| 493 | !-- Compute horizontal diffusion |
---|
[2232] | 494 | DO k = nzb+1, nzt |
---|
| 495 | ! |
---|
| 496 | !-- Predetermine flag to mask topography and wall-bounded grid points |
---|
| 497 | flag = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i), 0 ) ) |
---|
| 498 | ! |
---|
| 499 | !-- Predetermine flag to mask wall-bounded grid points, equivalent to |
---|
| 500 | !-- former s_outer array |
---|
| 501 | mask_west = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i-1), 0 ) ) |
---|
| 502 | mask_east = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j,i+1), 0 ) ) |
---|
| 503 | mask_south = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j-1,i), 0 ) ) |
---|
| 504 | mask_north = MERGE( 1.0_wp, 0.0_wp, BTEST( wall_flags_0(k,j+1,i), 0 ) ) |
---|
| 505 | ! |
---|
| 506 | !-- Finally, determine flag to mask both topography itself as well |
---|
| 507 | !-- as wall-bounded grid points, which will be treated further below |
---|
[1] | 508 | |
---|
[1320] | 509 | tend(k,j,i) = tend(k,j,i) & |
---|
[1340] | 510 | + 0.5_wp * ( & |
---|
[2232] | 511 | mask_east * ( kh(k,j,i) + kh(k,j,i+1) ) & |
---|
| 512 | * ( s(k,j,i+1) - s(k,j,i) ) & |
---|
| 513 | - mask_west * ( kh(k,j,i) + kh(k,j,i-1) ) & |
---|
| 514 | * ( s(k,j,i) - s(k,j,i-1) ) & |
---|
| 515 | ) * ddx2 * flag & |
---|
[1340] | 516 | + 0.5_wp * ( & |
---|
[2232] | 517 | mask_north * ( kh(k,j,i) + kh(k,j+1,i) ) & |
---|
| 518 | * ( s(k,j+1,i) - s(k,j,i) ) & |
---|
| 519 | - mask_south * ( kh(k,j,i) + kh(k,j-1,i) ) & |
---|
| 520 | * ( s(k,j,i) - s(k,j-1,i) ) & |
---|
| 521 | ) * ddy2 * flag |
---|
[1] | 522 | ENDDO |
---|
| 523 | |
---|
| 524 | ! |
---|
[2232] | 525 | !-- Apply prescribed horizontal wall heatflux where necessary. First, |
---|
| 526 | !-- determine start and end index for respective (j,i)-index. Please |
---|
| 527 | !-- note, in the flat case following loops will not be entered, as |
---|
| 528 | !-- surf_s=1 and surf_e=0. Furtermore, note, no vertical natural surfaces |
---|
| 529 | !-- so far. |
---|
| 530 | !-- First, for default-type surfaces |
---|
| 531 | !-- North-facing vertical default-type surfaces |
---|
| 532 | surf_s = surf_def_v(0)%start_index(j,i) |
---|
| 533 | surf_e = surf_def_v(0)%end_index(j,i) |
---|
| 534 | DO m = surf_s, surf_e |
---|
| 535 | k = surf_def_v(0)%k(m) |
---|
| 536 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_north(m) * ddy2 |
---|
| 537 | ENDDO |
---|
| 538 | ! |
---|
| 539 | !-- South-facing vertical default-type surfaces |
---|
| 540 | surf_s = surf_def_v(1)%start_index(j,i) |
---|
| 541 | surf_e = surf_def_v(1)%end_index(j,i) |
---|
| 542 | DO m = surf_s, surf_e |
---|
| 543 | k = surf_def_v(1)%k(m) |
---|
| 544 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_south(m) * ddy2 |
---|
| 545 | ENDDO |
---|
| 546 | ! |
---|
| 547 | !-- East-facing vertical default-type surfaces |
---|
| 548 | surf_s = surf_def_v(2)%start_index(j,i) |
---|
| 549 | surf_e = surf_def_v(2)%end_index(j,i) |
---|
| 550 | DO m = surf_s, surf_e |
---|
| 551 | k = surf_def_v(2)%k(m) |
---|
| 552 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_east(m) * ddx2 |
---|
| 553 | ENDDO |
---|
| 554 | ! |
---|
| 555 | !-- West-facing vertical default-type surfaces |
---|
| 556 | surf_s = surf_def_v(3)%start_index(j,i) |
---|
| 557 | surf_e = surf_def_v(3)%end_index(j,i) |
---|
| 558 | DO m = surf_s, surf_e |
---|
| 559 | k = surf_def_v(3)%k(m) |
---|
| 560 | tend(k,j,i) = tend(k,j,i) + s_flux_def_v_west(m) * ddx2 |
---|
| 561 | ENDDO |
---|
| 562 | ! |
---|
| 563 | !-- Now, for natural-type surfaces |
---|
| 564 | !-- North-facing |
---|
| 565 | surf_s = surf_lsm_v(0)%start_index(j,i) |
---|
| 566 | surf_e = surf_lsm_v(0)%end_index(j,i) |
---|
| 567 | DO m = surf_s, surf_e |
---|
| 568 | k = surf_lsm_v(0)%k(m) |
---|
| 569 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_north(m) * ddy2 |
---|
| 570 | ENDDO |
---|
| 571 | ! |
---|
| 572 | !-- South-facing |
---|
| 573 | surf_s = surf_lsm_v(1)%start_index(j,i) |
---|
| 574 | surf_e = surf_lsm_v(1)%end_index(j,i) |
---|
| 575 | DO m = surf_s, surf_e |
---|
| 576 | k = surf_lsm_v(1)%k(m) |
---|
| 577 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_south(m) * ddy2 |
---|
| 578 | ENDDO |
---|
| 579 | ! |
---|
| 580 | !-- East-facing |
---|
| 581 | surf_s = surf_lsm_v(2)%start_index(j,i) |
---|
| 582 | surf_e = surf_lsm_v(2)%end_index(j,i) |
---|
| 583 | DO m = surf_s, surf_e |
---|
| 584 | k = surf_lsm_v(2)%k(m) |
---|
| 585 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_east(m) * ddx2 |
---|
| 586 | ENDDO |
---|
| 587 | ! |
---|
| 588 | !-- West-facing |
---|
| 589 | surf_s = surf_lsm_v(3)%start_index(j,i) |
---|
| 590 | surf_e = surf_lsm_v(3)%end_index(j,i) |
---|
| 591 | DO m = surf_s, surf_e |
---|
| 592 | k = surf_lsm_v(3)%k(m) |
---|
| 593 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_v_west(m) * ddx2 |
---|
| 594 | ENDDO |
---|
| 595 | ! |
---|
| 596 | !-- Now, for urban-type surfaces |
---|
| 597 | !-- North-facing |
---|
| 598 | surf_s = surf_usm_v(0)%start_index(j,i) |
---|
| 599 | surf_e = surf_usm_v(0)%end_index(j,i) |
---|
| 600 | DO m = surf_s, surf_e |
---|
| 601 | k = surf_usm_v(0)%k(m) |
---|
| 602 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_north(m) * ddy2 |
---|
| 603 | ENDDO |
---|
| 604 | ! |
---|
| 605 | !-- South-facing |
---|
| 606 | surf_s = surf_usm_v(1)%start_index(j,i) |
---|
| 607 | surf_e = surf_usm_v(1)%end_index(j,i) |
---|
| 608 | DO m = surf_s, surf_e |
---|
| 609 | k = surf_usm_v(1)%k(m) |
---|
| 610 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_south(m) * ddy2 |
---|
| 611 | ENDDO |
---|
| 612 | ! |
---|
| 613 | !-- East-facing |
---|
| 614 | surf_s = surf_usm_v(2)%start_index(j,i) |
---|
| 615 | surf_e = surf_usm_v(2)%end_index(j,i) |
---|
| 616 | DO m = surf_s, surf_e |
---|
| 617 | k = surf_usm_v(2)%k(m) |
---|
| 618 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_east(m) * ddx2 |
---|
| 619 | ENDDO |
---|
| 620 | ! |
---|
| 621 | !-- West-facing |
---|
| 622 | surf_s = surf_usm_v(3)%start_index(j,i) |
---|
| 623 | surf_e = surf_usm_v(3)%end_index(j,i) |
---|
| 624 | DO m = surf_s, surf_e |
---|
| 625 | k = surf_usm_v(3)%k(m) |
---|
| 626 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_v_west(m) * ddx2 |
---|
| 627 | ENDDO |
---|
[1] | 628 | |
---|
| 629 | |
---|
| 630 | ! |
---|
| 631 | !-- Compute vertical diffusion. In case that surface fluxes have been |
---|
[19] | 632 | !-- prescribed or computed at bottom and/or top, index k starts/ends at |
---|
[2232] | 633 | !-- nzb+2 or nzt-1, respectively. Model top is also mask if top flux |
---|
| 634 | !-- is given. |
---|
| 635 | DO k = nzb+1, nzt |
---|
| 636 | ! |
---|
| 637 | !-- Determine flags to mask topography below and above. Flag 0 is |
---|
| 638 | !-- used to mask topography in general, and flag 8 implies |
---|
| 639 | !-- information about use_surface_fluxes. Flag 9 is used to control |
---|
| 640 | !-- flux at model top. |
---|
| 641 | mask_bottom = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 642 | BTEST( wall_flags_0(k-1,j,i), 8 ) ) |
---|
| 643 | mask_top = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 644 | BTEST( wall_flags_0(k+1,j,i), 8 ) ) * & |
---|
| 645 | MERGE( 1.0_wp, 0.0_wp, & |
---|
| 646 | BTEST( wall_flags_0(k+1,j,i), 9 ) ) |
---|
| 647 | flag = MERGE( 1.0_wp, 0.0_wp, & |
---|
| 648 | BTEST( wall_flags_0(k,j,i), 0 ) ) |
---|
[1] | 649 | |
---|
[1320] | 650 | tend(k,j,i) = tend(k,j,i) & |
---|
[1340] | 651 | + 0.5_wp * ( & |
---|
[2232] | 652 | ( kh(k,j,i) + kh(k+1,j,i) ) * & |
---|
| 653 | ( s(k+1,j,i)-s(k,j,i) ) * ddzu(k+1) & |
---|
[2037] | 654 | * rho_air_zw(k) & |
---|
[2232] | 655 | * mask_top & |
---|
| 656 | - ( kh(k,j,i) + kh(k-1,j,i) ) * & |
---|
| 657 | ( s(k,j,i)-s(k-1,j,i) ) * ddzu(k) & |
---|
[2037] | 658 | * rho_air_zw(k-1) & |
---|
[2232] | 659 | * mask_bottom & |
---|
| 660 | ) * ddzw(k) * drho_air(k) & |
---|
| 661 | * flag |
---|
[1] | 662 | ENDDO |
---|
| 663 | |
---|
| 664 | ! |
---|
[2232] | 665 | !-- Vertical diffusion at horizontal walls. |
---|
| 666 | !-- TO DO: Adjust for downward facing walls and mask already in main loop |
---|
[1] | 667 | IF ( use_surface_fluxes ) THEN |
---|
[2232] | 668 | ! |
---|
| 669 | !-- Default-type surfaces, upward-facing |
---|
| 670 | surf_s = surf_def_h(0)%start_index(j,i) |
---|
| 671 | surf_e = surf_def_h(0)%end_index(j,i) |
---|
| 672 | DO m = surf_s, surf_e |
---|
[1] | 673 | |
---|
[2232] | 674 | k = surf_def_h(0)%k(m) |
---|
[1] | 675 | |
---|
[2232] | 676 | tend(k,j,i) = tend(k,j,i) + s_flux_def_h_up(m) & |
---|
| 677 | * ddzw(k) * drho_air(k) |
---|
| 678 | ENDDO |
---|
| 679 | ! |
---|
| 680 | !-- Default-type surfaces, downward-facing |
---|
| 681 | surf_s = surf_def_h(1)%start_index(j,i) |
---|
| 682 | surf_e = surf_def_h(1)%end_index(j,i) |
---|
| 683 | DO m = surf_s, surf_e |
---|
[1] | 684 | |
---|
[2232] | 685 | k = surf_def_h(1)%k(m) |
---|
[1] | 686 | |
---|
[2232] | 687 | tend(k,j,i) = tend(k,j,i) + s_flux_def_h_down(m) & |
---|
| 688 | * ddzw(k) * drho_air(k) |
---|
| 689 | ENDDO |
---|
[19] | 690 | ! |
---|
[2232] | 691 | !-- Natural-type surfaces, upward-facing |
---|
| 692 | surf_s = surf_lsm_h%start_index(j,i) |
---|
| 693 | surf_e = surf_lsm_h%end_index(j,i) |
---|
| 694 | DO m = surf_s, surf_e |
---|
| 695 | k = surf_lsm_h%k(m) |
---|
| 696 | |
---|
| 697 | tend(k,j,i) = tend(k,j,i) + s_flux_lsm_h_up(m) & |
---|
| 698 | * ddzw(k) * drho_air(k) |
---|
| 699 | ENDDO |
---|
| 700 | ! |
---|
| 701 | !-- Urban-type surfaces, upward-facing |
---|
| 702 | surf_s = surf_usm_h%start_index(j,i) |
---|
| 703 | surf_e = surf_usm_h%end_index(j,i) |
---|
| 704 | DO m = surf_s, surf_e |
---|
| 705 | k = surf_usm_h%k(m) |
---|
| 706 | |
---|
| 707 | tend(k,j,i) = tend(k,j,i) + s_flux_usm_h_up(m) & |
---|
| 708 | * ddzw(k) * drho_air(k) |
---|
| 709 | ENDDO |
---|
| 710 | ENDIF |
---|
| 711 | ! |
---|
[19] | 712 | !-- Vertical diffusion at the last computational gridpoint along z-direction |
---|
| 713 | IF ( use_top_fluxes ) THEN |
---|
[2232] | 714 | surf_s = surf_def_h(2)%start_index(j,i) |
---|
| 715 | surf_e = surf_def_h(2)%end_index(j,i) |
---|
| 716 | DO m = surf_s, surf_e |
---|
[19] | 717 | |
---|
[2232] | 718 | k = surf_def_h(2)%k(m) |
---|
| 719 | tend(k,j,i) = tend(k,j,i) & |
---|
| 720 | + ( - s_flux_t(m) ) * ddzw(k) * drho_air(k) |
---|
| 721 | ENDDO |
---|
[19] | 722 | ENDIF |
---|
| 723 | |
---|
[1] | 724 | END SUBROUTINE diffusion_s_ij |
---|
| 725 | |
---|
| 726 | END MODULE diffusion_s_mod |
---|