| 1 | MODULE ls_forcing_mod |
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| 2 | |
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| 3 | !--------------------------------------------------------------------------------! |
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| 4 | ! This file is part of PALM. |
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| 5 | ! |
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| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | ! either version 3 of the License, or (at your option) any later version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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| 17 | ! Copyright 1997-2014 Leibniz Universitaet Hannover |
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| 18 | !--------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ------------------ |
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| 22 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: ls_forcing.f90 1321 2014-03-20 09:40:40Z raasch $ |
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| 27 | ! |
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| 28 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 29 | ! ONLY-attribute added to USE-statements, |
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| 30 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 31 | ! kinds are defined in new module kinds, |
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| 32 | ! comment fields (!:) to be used for variable explanations added to |
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| 33 | ! all variable declaration statements |
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| 34 | ! |
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| 35 | ! 1318 2014-03-17 13:35:16Z raasch |
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| 36 | ! module interfaces removed |
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| 37 | ! |
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| 38 | ! 1299 2014-03-06 13:15:21Z heinze |
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| 39 | ! Ensure a zero large scale vertical velocity at the surface |
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| 40 | ! Bugfix: typo in case of boundary condition in if-clause |
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| 41 | ! |
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| 42 | ! 1276 2014-01-15 13:40:41Z heinze |
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| 43 | ! Use LSF_DATA also in case of Dirichlet bottom boundary condition for scalars |
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| 44 | ! |
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| 45 | ! 1249 2013-11-06 10:45:47Z heinze |
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| 46 | ! remove call of user module |
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| 47 | ! reformatting |
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| 48 | ! |
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| 49 | ! 1241 2013-10-30 11:36:58Z heinze |
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| 50 | ! Initial revision |
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| 51 | ! |
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| 52 | ! Description: |
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| 53 | ! ------------ |
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| 54 | ! Calculates large scale forcings (geostrophic wind and subsidence velocity) as |
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| 55 | ! well as surfaces fluxes dependent on time given in an external file (LSF_DATA). |
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| 56 | ! Code is based in parts on DALES and UCLA-LES. |
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| 57 | !--------------------------------------------------------------------------------! |
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| 58 | |
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| 59 | PRIVATE |
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| 60 | PUBLIC init_ls_forcing, ls_forcing_surf, ls_forcing_vert |
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| 61 | SAVE |
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| 62 | |
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| 63 | |
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| 64 | CONTAINS |
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| 65 | |
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| 66 | SUBROUTINE init_ls_forcing |
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| 67 | |
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| 68 | USE arrays_3d, & |
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| 69 | ONLY: p_surf, pt_surf, q_surf, qsws_surf, shf_surf, time_surf, & |
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| 70 | time_vert, ug_vert, vg_vert, wsubs_vert, zu |
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| 71 | |
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| 72 | USE control_parameters, & |
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| 73 | ONLY: end_time, lsf_surf, lsf_vert, message_string, nlsf |
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| 74 | |
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| 75 | USE indices, & |
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| 76 | ONLY: nzb, nzt |
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| 77 | |
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| 78 | USE kinds |
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| 79 | |
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| 80 | |
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| 81 | IMPLICIT NONE |
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| 82 | |
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| 83 | CHARACTER(100) :: chmess !: |
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| 84 | CHARACTER(1) :: hash !: |
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| 85 | |
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| 86 | INTEGER(iwp) :: ierrn !: |
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| 87 | INTEGER(iwp) :: finput = 90 !: |
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| 88 | INTEGER(iwp) :: k !: |
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| 89 | INTEGER(iwp) :: t !: |
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| 90 | |
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| 91 | REAL(wp) :: fac !: |
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| 92 | REAL(wp) :: highheight !: |
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| 93 | REAL(wp) :: highug_vert !: |
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| 94 | REAL(wp) :: highvg_vert !: |
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| 95 | REAL(wp) :: highwsubs_vert !: |
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| 96 | REAL(wp) :: lowheight !: |
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| 97 | REAL(wp) :: lowug_vert !: |
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| 98 | REAL(wp) :: lowvg_vert !: |
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| 99 | REAL(wp) :: lowwsubs_vert !: |
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| 100 | REAL(wp) :: r_dummy !: |
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| 101 | |
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| 102 | ALLOCATE( p_surf(0:nlsf), pt_surf(0:nlsf), q_surf(0:nlsf), & |
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| 103 | qsws_surf(0:nlsf), shf_surf(0:nlsf), time_vert(0:nlsf), & |
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| 104 | time_surf(0:nlsf), ug_vert(nzb:nzt+1,0:nlsf), & |
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| 105 | vg_vert(nzb:nzt+1,0:nlsf), wsubs_vert(nzb:nzt+1,0:nlsf) ) |
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| 106 | |
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| 107 | p_surf = 0.0; pt_surf = 0.0; q_surf = 0.0; qsws_surf = 0.0 |
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| 108 | shf_surf = 0.0; time_vert = 0.0; time_surf = 0.0; ug_vert = 0.0 |
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| 109 | vg_vert = 0.0; wsubs_vert = 0.0 |
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| 110 | |
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| 111 | |
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| 112 | OPEN ( finput, FILE='LSF_DATA', STATUS='OLD', & |
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| 113 | FORM='FORMATTED', IOSTAT=ierrn ) |
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| 114 | |
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| 115 | IF ( ierrn /= 0 ) THEN |
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| 116 | message_string = 'file LSF_DATA does not exist' |
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| 117 | CALL message( 'ls_forcing', 'PA0368', 1, 2, 0, 6, 0 ) |
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| 118 | ENDIF |
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| 119 | |
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| 120 | ierrn = 0 |
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| 121 | ! |
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| 122 | !-- First three lines of LSF_DATA contain header |
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| 123 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
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| 124 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
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| 125 | READ ( finput, FMT='(a100)', IOSTAT=ierrn ) chmess |
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| 126 | |
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| 127 | IF ( ierrn /= 0 ) THEN |
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| 128 | message_string = 'errors in file LSF_DATA' |
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| 129 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
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| 130 | ENDIF |
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| 131 | |
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| 132 | ! |
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| 133 | !-- Surface values are read in |
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| 134 | t = 0 |
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| 135 | ierrn = 0 |
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| 136 | |
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| 137 | DO WHILE ( time_surf(t) < end_time ) |
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| 138 | t = t + 1 |
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| 139 | READ ( finput, *, IOSTAT = ierrn ) time_surf(t), shf_surf(t), & |
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| 140 | qsws_surf(t), pt_surf(t), & |
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| 141 | q_surf(t), p_surf(t) |
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| 142 | |
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| 143 | IF ( ierrn < 0 ) THEN |
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| 144 | WRITE ( message_string, * ) 'No time dependent surface variables ',& |
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| 145 | 'in&LSF_DATA for end of run found' |
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| 146 | |
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| 147 | CALL message( 'ls_forcing', 'PA0370', 1, 2, 0, 6, 0 ) |
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| 148 | ENDIF |
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| 149 | ENDDO |
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| 150 | |
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| 151 | |
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| 152 | IF ( time_surf(1) > end_time ) THEN |
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| 153 | WRITE ( message_string, * ) 'No time dependent surface variables in ',& |
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| 154 | '&LSF_DATA for end of run found - ', & |
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| 155 | 'lsf_surf is set to FALSE' |
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| 156 | CALL message( 'ls_forcing', 'PA0371', 0, 0, 0, 6, 0 ) |
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| 157 | lsf_surf = .FALSE. |
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| 158 | ENDIF |
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| 159 | |
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| 160 | ! |
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| 161 | !-- Go to the end of the list with surface variables |
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| 162 | DO WHILE ( ierrn == 0 ) |
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| 163 | READ ( finput, *, IOSTAT = ierrn ) r_dummy |
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| 164 | ENDDO |
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| 165 | |
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| 166 | ! |
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| 167 | !-- Profiles of ug, vg and w_subs are read in (large scale forcing) |
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| 168 | |
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| 169 | t = 0 |
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| 170 | DO WHILE ( time_vert(t) < end_time ) |
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| 171 | t = t + 1 |
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| 172 | hash = "#" |
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| 173 | ierrn = 1 ! not zero |
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| 174 | ! |
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| 175 | !-- Search for the next line consisting of "# time", |
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| 176 | !-- from there onwards the profiles will be read |
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| 177 | DO WHILE ( .NOT. ( hash == "#" .AND. ierrn == 0 ) ) |
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| 178 | READ ( finput, *, IOSTAT=ierrn ) hash, time_vert(t) |
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| 179 | IF ( ierrn < 0 ) THEN |
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| 180 | WRITE( message_string, * ) 'No time dependent vertical profiles',& |
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| 181 | ' in&LSF_DATA for end of run found' |
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| 182 | CALL message( 'ls_forcing', 'PA0372', 1, 2, 0, 6, 0 ) |
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| 183 | ENDIF |
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| 184 | ENDDO |
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| 185 | |
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| 186 | IF ( t == 1 .AND. time_vert(t) > end_time ) EXIT |
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| 187 | |
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| 188 | READ ( finput, *, IOSTAT=ierrn ) lowheight, lowug_vert, lowvg_vert, & |
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| 189 | lowwsubs_vert |
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| 190 | IF ( ierrn /= 0 ) THEN |
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| 191 | message_string = 'errors in file LSF_DATA' |
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| 192 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
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| 193 | ENDIF |
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| 194 | |
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| 195 | READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, highvg_vert, & |
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| 196 | highwsubs_vert |
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| 197 | |
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| 198 | IF ( ierrn /= 0 ) THEN |
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| 199 | message_string = 'errors in file LSF_DATA' |
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| 200 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
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| 201 | ENDIF |
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| 202 | |
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| 203 | |
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| 204 | DO k = nzb, nzt+1 |
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| 205 | IF ( highheight < zu(k) ) THEN |
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| 206 | lowheight = highheight |
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| 207 | lowug_vert = highug_vert |
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| 208 | lowvg_vert = highvg_vert |
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| 209 | lowwsubs_vert = highwsubs_vert |
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| 210 | |
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| 211 | ierrn = 0 |
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| 212 | READ ( finput, *, IOSTAT=ierrn ) highheight, highug_vert, & |
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| 213 | highvg_vert, highwsubs_vert |
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| 214 | |
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| 215 | IF ( ierrn /= 0 ) THEN |
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| 216 | message_string = 'errors in file LSF_DATA' |
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| 217 | CALL message( 'ls_forcing', 'PA0369', 1, 2, 0, 6, 0 ) |
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| 218 | ENDIF |
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| 219 | |
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| 220 | ENDIF |
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| 221 | |
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| 222 | ! |
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| 223 | !-- Interpolation of prescribed profiles in space |
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| 224 | fac = (highheight-zu(k))/(highheight - lowheight) |
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| 225 | |
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| 226 | ug_vert(k,t) = fac*lowug_vert + (1-fac)*highug_vert |
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| 227 | vg_vert(k,t) = fac*lowvg_vert + (1-fac)*highvg_vert |
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| 228 | wsubs_vert(k,t) = fac*lowwsubs_vert + (1-fac)*highwsubs_vert |
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| 229 | |
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| 230 | ENDDO |
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| 231 | |
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| 232 | ENDDO |
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| 233 | |
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| 234 | ! |
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| 235 | !-- Large scale vertical velocity has to be zero at the surface |
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| 236 | wsubs_vert(nzb,:) = 0.0 |
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| 237 | |
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| 238 | IF ( time_vert(1) > end_time ) THEN |
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| 239 | WRITE ( message_string, * ) 'Time dependent large scale profile ',& |
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| 240 | 'forcing from&LSF_DATA sets in after end of ' ,& |
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| 241 | 'simulation - lsf_vert is set to FALSE' |
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| 242 | CALL message( 'ls_forcing', 'PA0373', 0, 0, 0, 6, 0 ) |
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| 243 | lsf_vert = .FALSE. |
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| 244 | ENDIF |
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| 245 | |
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| 246 | CLOSE( finput ) |
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| 247 | |
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| 248 | |
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| 249 | END SUBROUTINE init_ls_forcing |
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| 250 | |
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| 251 | |
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| 252 | SUBROUTINE ls_forcing_surf ( time ) |
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| 253 | |
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| 254 | USE arrays_3d, & |
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| 255 | ONLY: p_surf, pt_surf, q_surf, qsws, qsws_surf, shf, shf_surf, & |
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| 256 | time_surf, time_vert, ug, ug_vert, vg, vg_vert |
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| 257 | |
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| 258 | USE control_parameters, & |
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| 259 | ONLY: bc_q_b, ibc_pt_b, ibc_q_b, pt_surface, q_surface, & |
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| 260 | surface_pressure |
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| 261 | |
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| 262 | USE kinds |
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| 263 | |
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| 264 | |
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| 265 | IMPLICIT NONE |
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| 266 | |
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| 267 | INTEGER(iwp) :: t !: |
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| 268 | |
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| 269 | REAL(wp) :: fac !: |
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| 270 | REAL(wp), INTENT(in) :: time !: |
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| 271 | |
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| 272 | ! |
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| 273 | !-- Interpolation in time of LSF_DATA at the surface |
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| 274 | t = 1 |
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| 275 | DO WHILE ( time > time_surf(t) ) |
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| 276 | t = t + 1 |
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| 277 | ENDDO |
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| 278 | IF ( time /= time_surf(t) ) THEN |
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| 279 | t = t - 1 |
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| 280 | ENDIF |
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| 281 | |
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| 282 | fac = ( time -time_surf(t) ) / ( time_surf(t+1) - time_surf(t) ) |
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| 283 | |
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| 284 | IF ( ibc_pt_b == 0 ) THEN |
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| 285 | ! |
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| 286 | !-- In case of Dirichlet boundary condition shf must not |
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| 287 | !-- be set - it is calculated via MOST in prandtl_fluxes |
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| 288 | pt_surface = pt_surf(t) + fac * ( pt_surf(t+1) - pt_surf(t) ) |
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| 289 | |
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| 290 | ELSEIF ( ibc_pt_b == 1 ) THEN |
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| 291 | ! |
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| 292 | !-- In case of Neumann boundary condition pt_surface is needed for |
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| 293 | !-- calculation of reference density |
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| 294 | shf = shf_surf(t) + fac * ( shf_surf(t+1) - shf_surf(t) ) |
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| 295 | pt_surface = pt_surf(t) + fac * ( pt_surf(t+1) - pt_surf(t) ) |
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| 296 | |
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| 297 | ENDIF |
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| 298 | |
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| 299 | IF ( ibc_q_b == 0 ) THEN |
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| 300 | ! |
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| 301 | !-- In case of Dirichlet boundary condition qsws must not |
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| 302 | !-- be set - it is calculated via MOST in prandtl_fluxes |
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| 303 | q_surface = q_surf(t) + fac * ( q_surf(t+1) - q_surf(t) ) |
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| 304 | |
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| 305 | ELSEIF ( ibc_q_b == 1 ) THEN |
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| 306 | |
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| 307 | qsws = qsws_surf(t) + fac * ( qsws_surf(t+1) - qsws_surf(t) ) |
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| 308 | |
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| 309 | ENDIF |
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| 310 | |
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| 311 | surface_pressure = p_surf(t) + fac * ( p_surf(t+1) - p_surf(t) ) |
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| 312 | |
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| 313 | END SUBROUTINE ls_forcing_surf |
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| 314 | |
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| 315 | |
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| 316 | SUBROUTINE ls_forcing_vert ( time ) |
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| 317 | |
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| 318 | USE arrays_3d, & |
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| 319 | ONLY: time_vert, ug, ug_vert, vg, vg_vert, w_subs, wsubs_vert |
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| 320 | |
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| 321 | USE control_parameters, & |
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| 322 | ONLY: large_scale_subsidence |
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| 323 | |
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| 324 | USE kinds |
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| 325 | |
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| 326 | |
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| 327 | IMPLICIT NONE |
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| 328 | |
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| 329 | INTEGER(iwp) :: t !: |
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| 330 | |
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| 331 | REAL(wp) :: fac !: |
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| 332 | REAL(wp), INTENT(in) :: time !: |
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| 333 | |
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| 334 | ! |
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| 335 | !-- Interpolation in time of LSF_DATA for ug, vg and w_subs |
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| 336 | t = 1 |
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| 337 | DO WHILE ( time > time_vert(t) ) |
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| 338 | t = t + 1 |
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| 339 | ENDDO |
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| 340 | IF ( time /= time_vert(t) ) THEN |
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| 341 | t = t - 1 |
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| 342 | ENDIF |
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| 343 | |
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| 344 | fac = ( time-time_vert(t) ) / ( time_vert(t+1)-time_vert(t) ) |
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| 345 | |
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| 346 | ug = ug_vert(:,t) + fac * ( ug_vert(:,t+1) - ug_vert(:,t) ) |
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| 347 | vg = vg_vert(:,t) + fac * ( vg_vert(:,t+1) - vg_vert(:,t) ) |
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| 348 | |
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| 349 | IF ( large_scale_subsidence ) THEN |
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| 350 | w_subs = wsubs_vert(:,t) + fac * ( wsubs_vert(:,t+1) - wsubs_vert(:,t) ) |
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| 351 | ENDIF |
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| 352 | |
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| 353 | END SUBROUTINE ls_forcing_vert |
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| 354 | |
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| 355 | |
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| 356 | END MODULE ls_forcing_mod |
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