| 1 | MODULE nudge_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 | ! Subroutine nudge_ref added to account for proper upper scalar boundary |
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| 23 | ! conditions in case of nudging |
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| 24 | ! |
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| 25 | ! Former revisions: |
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| 26 | ! ----------------- |
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| 27 | ! $Id: nudging.f90 1380 2014-04-28 12:40:45Z heinze $ |
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| 28 | ! |
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| 29 | ! 1365 2014-04-22 15:03:56Z boeske |
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| 30 | ! Variable t renamed nt, variable currtnudge renamed tmp_tnudge, |
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| 31 | ! summation of nudging tendencies for data output added |
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| 32 | ! +sums_ls_l, tmp_tend |
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| 33 | ! Added new subroutine calc_tnudge, which calculates the current nudging time |
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| 34 | ! scale at each time step |
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| 35 | ! |
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| 36 | ! 1355 2014-04-10 10:21:29Z heinze |
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| 37 | ! Error message specified. |
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| 38 | ! |
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| 39 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 40 | ! REAL constants provided with KIND-attribute |
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| 41 | ! |
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| 42 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 43 | ! ONLY-attribute added to USE-statements, |
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| 44 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 45 | ! kinds are defined in new module kinds, |
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| 46 | ! old module precision_kind is removed, |
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| 47 | ! revision history before 2012 removed, |
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| 48 | ! comment fields (!:) to be used for variable explanations added to |
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| 49 | ! all variable declaration statements |
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| 50 | ! |
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| 51 | ! 1318 2014-03-17 13:35:16Z raasch |
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| 52 | ! module interfaces removed |
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| 53 | ! |
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| 54 | ! 1268 2013-12-12 09:47:53Z heinze |
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| 55 | ! bugfix: argument of calc_mean_profile corrected |
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| 56 | ! |
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| 57 | ! 1251 2013-11-07 08:14:30Z heinze |
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| 58 | ! bugfix: calculate dtm and dtp also in vector version |
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| 59 | ! |
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| 60 | ! 1249 2013-11-06 10:45:47Z heinze |
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| 61 | ! remove call of user module |
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| 62 | ! reformatting |
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| 63 | ! |
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| 64 | ! 1241 2013-10-30 11:36:58Z heinze |
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| 65 | ! Initial revision |
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| 66 | ! |
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| 67 | ! Description: |
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| 68 | ! ------------ |
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| 69 | ! Nudges u, v, pt and q to given profiles on a relaxation timescale tnudge. |
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| 70 | ! Profiles are read in from NUDGIN_DATA. Code is based on Neggers et al. (2012) |
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| 71 | ! and also part of DALES and UCLA-LES. |
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| 72 | !--------------------------------------------------------------------------------! |
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| 73 | |
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| 74 | PRIVATE |
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| 75 | PUBLIC init_nudge, calc_tnudge, nudge, nudge_ref |
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| 76 | SAVE |
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| 77 | |
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| 78 | INTERFACE nudge |
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| 79 | MODULE PROCEDURE nudge |
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| 80 | MODULE PROCEDURE nudge_ij |
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| 81 | END INTERFACE nudge |
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| 82 | |
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| 83 | CONTAINS |
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| 84 | |
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| 85 | SUBROUTINE init_nudge |
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| 86 | |
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| 87 | USE arrays_3d, & |
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| 88 | ONLY: ptnudge, qnudge, timenudge, tmp_tnudge, tnudge, unudge, & |
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| 89 | vnudge, wnudge, zu |
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| 90 | |
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| 91 | USE control_parameters, & |
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| 92 | ONLY: dt_3d, lptnudge, lqnudge, lunudge, lvnudge, lwnudge, & |
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| 93 | message_string, ntnudge |
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| 94 | |
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| 95 | USE indices, & |
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| 96 | ONLY: nzb, nzt |
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| 97 | |
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| 98 | USE kinds |
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| 99 | |
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| 100 | IMPLICIT NONE |
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| 101 | |
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| 102 | |
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| 103 | INTEGER(iwp) :: finput = 90 !: |
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| 104 | INTEGER(iwp) :: ierrn !: |
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| 105 | INTEGER(iwp) :: k !: |
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| 106 | INTEGER(iwp) :: nt !: |
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| 107 | |
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| 108 | CHARACTER(1) :: hash !: |
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| 109 | |
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| 110 | REAL(wp) :: highheight !: |
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| 111 | REAL(wp) :: highqnudge !: |
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| 112 | REAL(wp) :: highptnudge !: |
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| 113 | REAL(wp) :: highunudge !: |
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| 114 | REAL(wp) :: highvnudge !: |
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| 115 | REAL(wp) :: highwnudge !: |
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| 116 | REAL(wp) :: hightnudge !: |
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| 117 | |
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| 118 | REAL(wp) :: lowheight !: |
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| 119 | REAL(wp) :: lowqnudge !: |
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| 120 | REAL(wp) :: lowptnudge !: |
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| 121 | REAL(wp) :: lowunudge !: |
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| 122 | REAL(wp) :: lowvnudge !: |
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| 123 | REAL(wp) :: lowwnudge !: |
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| 124 | REAL(wp) :: lowtnudge !: |
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| 125 | |
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| 126 | REAL(wp) :: fac !: |
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| 127 | |
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| 128 | ALLOCATE( ptnudge(nzb:nzt+1,1:ntnudge), qnudge(nzb:nzt+1,1:ntnudge), & |
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| 129 | tnudge(nzb:nzt+1,1:ntnudge), unudge(nzb:nzt+1,1:ntnudge), & |
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| 130 | vnudge(nzb:nzt+1,1:ntnudge), wnudge(nzb:nzt+1,1:ntnudge) ) |
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| 131 | |
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| 132 | ALLOCATE( tmp_tnudge(nzb:nzt) ) |
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| 133 | |
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| 134 | ALLOCATE( timenudge(0:ntnudge) ) |
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| 135 | |
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| 136 | ptnudge = 0.0_wp; qnudge = 0.0_wp; tnudge = 0.0_wp; unudge = 0.0_wp |
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| 137 | vnudge = 0.0_wp; wnudge = 0.0_wp; timenudge = 0.0_wp |
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| 138 | ! |
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| 139 | !-- Initialize array tmp_nudge with a current nudging time scale of 6 hours |
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| 140 | tmp_tnudge = 21600.0_wp |
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| 141 | |
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| 142 | nt = 0 |
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| 143 | OPEN ( finput, FILE='NUDGING_DATA', STATUS='OLD', & |
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| 144 | FORM='FORMATTED', IOSTAT=ierrn ) |
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| 145 | |
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| 146 | IF ( ierrn /= 0 ) THEN |
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| 147 | message_string = 'file NUDGING_DATA does not exist' |
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| 148 | CALL message( 'nudging', 'PA0365', 1, 2, 0, 6, 0 ) |
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| 149 | ENDIF |
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| 150 | |
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| 151 | ierrn = 0 |
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| 152 | |
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| 153 | rloop:DO |
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| 154 | nt = nt + 1 |
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| 155 | hash = "#" |
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| 156 | ierrn = 1 ! not zero |
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| 157 | ! |
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| 158 | !-- Search for the next line consisting of "# time", |
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| 159 | !-- from there onwards the profiles will be read |
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| 160 | DO WHILE ( .NOT. ( hash == "#" .AND. ierrn == 0 ) ) |
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| 161 | |
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| 162 | READ ( finput, *, IOSTAT=ierrn ) hash, timenudge(nt) |
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| 163 | IF ( ierrn < 0 ) EXIT rloop |
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| 164 | |
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| 165 | ENDDO |
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| 166 | |
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| 167 | ierrn = 0 |
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| 168 | READ ( finput, *, IOSTAT=ierrn ) lowheight, lowtnudge, lowunudge, & |
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| 169 | lowvnudge, lowwnudge , lowptnudge, & |
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| 170 | lowqnudge |
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| 171 | |
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| 172 | IF ( ierrn /= 0 ) THEN |
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| 173 | message_string = 'errors in file NUDGING_DATA' |
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| 174 | CALL message( 'nudging', 'PA0366', 1, 2, 0, 6, 0 ) |
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| 175 | ENDIF |
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| 176 | |
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| 177 | ierrn = 0 |
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| 178 | READ ( finput, *, IOSTAT=ierrn ) highheight, hightnudge, highunudge, & |
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| 179 | highvnudge, highwnudge , highptnudge, & |
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| 180 | highqnudge |
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| 181 | |
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| 182 | IF ( ierrn /= 0 ) THEN |
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| 183 | message_string = 'errors in file NUDGING_DATA' |
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| 184 | CALL message( 'nudging', 'PA0366', 1, 2, 0, 6, 0 ) |
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| 185 | ENDIF |
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| 186 | |
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| 187 | DO k = nzb, nzt+1 |
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| 188 | IF ( highheight < zu(k) ) THEN |
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| 189 | lowheight = highheight |
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| 190 | lowtnudge = hightnudge |
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| 191 | lowunudge = highunudge |
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| 192 | lowvnudge = highvnudge |
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| 193 | lowwnudge = highwnudge |
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| 194 | lowptnudge = highptnudge |
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| 195 | lowqnudge = highqnudge |
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| 196 | |
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| 197 | ierrn = 0 |
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| 198 | READ ( finput, *, IOSTAT=ierrn ) highheight , hightnudge , & |
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| 199 | highunudge , highvnudge , & |
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| 200 | highwnudge , highptnudge, & |
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| 201 | highqnudge |
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| 202 | IF (ierrn /= 0 ) THEN |
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| 203 | WRITE( message_string, * ) 'zu(nzt+1) = ', zu(nzt+1), 'm is ',& |
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| 204 | 'higher than the maximum height in NUDING_DATA which ', & |
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| 205 | 'is ', lowheight, 'm. Interpolation on PALM ', & |
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| 206 | 'grid is not possible.' |
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| 207 | CALL message( 'nudging', 'PA0364', 1, 2, 0, 6, 0 ) |
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| 208 | ENDIF |
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| 209 | ENDIF |
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| 210 | |
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| 211 | ! |
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| 212 | !-- Interpolation of prescribed profiles in space |
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| 213 | |
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| 214 | fac = ( highheight - zu(k) ) / ( highheight - lowheight ) |
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| 215 | |
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| 216 | tnudge(k,nt) = fac * lowtnudge + ( 1.0_wp - fac ) * hightnudge |
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| 217 | unudge(k,nt) = fac * lowunudge + ( 1.0_wp - fac ) * highunudge |
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| 218 | vnudge(k,nt) = fac * lowvnudge + ( 1.0_wp - fac ) * highvnudge |
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| 219 | wnudge(k,nt) = fac * lowwnudge + ( 1.0_wp - fac ) * highwnudge |
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| 220 | ptnudge(k,nt) = fac * lowptnudge + ( 1.0_wp - fac ) * highptnudge |
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| 221 | qnudge(k,nt) = fac * lowqnudge + ( 1.0_wp - fac ) * highqnudge |
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| 222 | ENDDO |
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| 223 | |
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| 224 | ENDDO rloop |
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| 225 | |
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| 226 | CLOSE ( finput ) |
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| 227 | |
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| 228 | ! |
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| 229 | !-- Prevent nudging if nudging profiles exhibt too small values |
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| 230 | !-- not used so far |
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| 231 | lptnudge = ANY( ABS( ptnudge ) > 1.0e-8_wp ) |
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| 232 | lqnudge = ANY( ABS( qnudge ) > 1.0e-8_wp ) |
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| 233 | lunudge = ANY( ABS( unudge ) > 1.0e-8_wp ) |
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| 234 | lvnudge = ANY( ABS( vnudge ) > 1.0e-8_wp ) |
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| 235 | lwnudge = ANY( ABS( wnudge ) > 1.0e-8_wp ) |
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| 236 | |
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| 237 | END SUBROUTINE init_nudge |
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| 238 | |
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| 239 | |
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| 240 | SUBROUTINE calc_tnudge ( time ) |
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| 241 | |
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| 242 | USE arrays_3d, & |
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| 243 | ONLY: timenudge, tmp_tnudge, tnudge |
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| 244 | |
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| 245 | USE control_parameters, & |
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| 246 | ONLY: dt_3d |
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| 247 | |
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| 248 | USE indices, & |
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| 249 | ONLY: nzb, nzt |
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| 250 | |
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| 251 | USE kinds |
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| 252 | |
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| 253 | IMPLICIT NONE |
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| 254 | |
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| 255 | |
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| 256 | REAL(wp) :: dtm !: |
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| 257 | REAL(wp) :: dtp !: |
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| 258 | REAL(wp) :: time !: |
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| 259 | |
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| 260 | INTEGER(iwp) :: k !: |
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| 261 | INTEGER(iwp) :: nt !: |
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| 262 | |
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| 263 | nt = 1 |
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| 264 | DO WHILE ( time > timenudge(nt) ) |
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| 265 | nt = nt+1 |
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| 266 | ENDDO |
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| 267 | IF ( time /= timenudge(1) ) THEN |
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| 268 | nt = nt-1 |
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| 269 | ENDIF |
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| 270 | |
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| 271 | dtm = ( time - timenudge(nt) ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 272 | dtp = ( timenudge(nt+1) - time ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 273 | |
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| 274 | DO k = nzb, nzt |
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| 275 | tmp_tnudge(k) = MAX( dt_3d, tnudge(k,nt) * dtp + tnudge(k,nt+1) * dtm ) |
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| 276 | ENDDO |
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| 277 | |
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| 278 | END SUBROUTINE calc_tnudge |
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| 279 | |
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| 280 | !------------------------------------------------------------------------------! |
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| 281 | ! Call for all grid points |
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| 282 | !------------------------------------------------------------------------------! |
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| 283 | SUBROUTINE nudge ( time, prog_var ) |
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| 284 | |
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| 285 | USE arrays_3d, & |
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| 286 | ONLY: pt, ptnudge, q, qnudge, tend, timenudge, tmp_tnudge, tnudge, & |
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| 287 | u, unudge, v, vnudge |
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| 288 | |
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| 289 | USE control_parameters, & |
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| 290 | ONLY: dt_3d, intermediate_timestep_count, message_string |
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| 291 | |
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| 292 | USE indices, & |
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| 293 | ONLY: nxl, nxr, nys, nyn, nzb, nzb_u_inner, nzt |
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| 294 | |
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| 295 | USE kinds |
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| 296 | |
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| 297 | USE statistics, & |
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| 298 | ONLY: hom, sums_ls_l, weight_pres |
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| 299 | |
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| 300 | IMPLICIT NONE |
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| 301 | |
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| 302 | CHARACTER (LEN=*) :: prog_var !: |
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| 303 | |
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| 304 | REAL(wp) :: tmp_tend !: |
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| 305 | REAL(wp) :: dtm !: |
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| 306 | REAL(wp) :: dtp !: |
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| 307 | REAL(wp) :: time !: |
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| 308 | |
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| 309 | INTEGER(iwp) :: i !: |
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| 310 | INTEGER(iwp) :: j !: |
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| 311 | INTEGER(iwp) :: k !: |
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| 312 | INTEGER(iwp) :: nt !: |
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| 313 | |
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| 314 | |
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| 315 | nt = 1 |
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| 316 | DO WHILE ( time > timenudge(nt) ) |
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| 317 | nt = nt+1 |
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| 318 | ENDDO |
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| 319 | IF ( time /= timenudge(1) ) THEN |
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| 320 | nt = nt-1 |
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| 321 | ENDIF |
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| 322 | |
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| 323 | dtm = ( time - timenudge(nt) ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 324 | dtp = ( timenudge(nt+1) - time ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 325 | |
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| 326 | SELECT CASE ( prog_var ) |
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| 327 | |
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| 328 | CASE ( 'u' ) |
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| 329 | |
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| 330 | DO i = nxl, nxr |
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| 331 | DO j = nys, nyn |
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| 332 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 333 | |
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| 334 | tmp_tend = - ( hom(k,1,1,0) - ( unudge(k,nt) * dtp + & |
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| 335 | unudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 336 | |
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| 337 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 338 | |
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| 339 | sums_ls_l(k,6) = sums_ls_l(k,6) + tmp_tend * & |
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| 340 | weight_pres(intermediate_timestep_count) |
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| 341 | ENDDO |
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| 342 | ENDDO |
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| 343 | ENDDO |
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| 344 | |
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| 345 | CASE ( 'v' ) |
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| 346 | |
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| 347 | DO i = nxl, nxr |
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| 348 | DO j = nys, nyn |
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| 349 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 350 | |
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| 351 | tmp_tend = - ( hom(k,1,2,0) - ( vnudge(k,nt) * dtp + & |
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| 352 | vnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 353 | |
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| 354 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 355 | |
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| 356 | sums_ls_l(k,7) = sums_ls_l(k,7) + tmp_tend * & |
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| 357 | weight_pres(intermediate_timestep_count) |
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| 358 | ENDDO |
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| 359 | ENDDO |
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| 360 | ENDDO |
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| 361 | |
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| 362 | CASE ( 'pt' ) |
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| 363 | |
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| 364 | DO i = nxl, nxr |
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| 365 | DO j = nys, nyn |
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| 366 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 367 | |
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| 368 | tmp_tend = - ( hom(k,1,4,0) - ( ptnudge(k,nt) * dtp + & |
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| 369 | ptnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 370 | |
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| 371 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 372 | |
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| 373 | sums_ls_l(k,4) = sums_ls_l(k,4) + tmp_tend * & |
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| 374 | weight_pres(intermediate_timestep_count) |
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| 375 | ENDDO |
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| 376 | ENDDO |
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| 377 | ENDDO |
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| 378 | |
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| 379 | CASE ( 'q' ) |
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| 380 | |
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| 381 | DO i = nxl, nxr |
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| 382 | DO j = nys, nyn |
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| 383 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 384 | |
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| 385 | tmp_tend = - ( hom(k,1,41,0) - ( qnudge(k,nt) * dtp + & |
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| 386 | qnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 387 | |
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| 388 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 389 | |
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| 390 | sums_ls_l(k,5) = sums_ls_l(k,5) + tmp_tend * & |
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| 391 | weight_pres(intermediate_timestep_count) |
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| 392 | ENDDO |
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| 393 | ENDDO |
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| 394 | ENDDO |
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| 395 | |
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| 396 | CASE DEFAULT |
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| 397 | message_string = 'unknown prognostic variable "' // prog_var // '"' |
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| 398 | CALL message( 'nudge', 'PA0367', 1, 2, 0, 6, 0 ) |
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| 399 | |
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| 400 | END SELECT |
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| 401 | |
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| 402 | END SUBROUTINE nudge |
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| 403 | |
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| 404 | |
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| 405 | !------------------------------------------------------------------------------! |
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| 406 | ! Call for grid point i,j |
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| 407 | !------------------------------------------------------------------------------! |
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| 408 | |
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| 409 | SUBROUTINE nudge_ij( i, j, time, prog_var ) |
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| 410 | |
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| 411 | USE arrays_3d, & |
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| 412 | ONLY: pt, ptnudge, q, qnudge, tend, timenudge, tmp_tnudge, tnudge, & |
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| 413 | u, unudge, v, vnudge |
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| 414 | |
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| 415 | USE control_parameters, & |
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| 416 | ONLY: dt_3d, intermediate_timestep_count, message_string |
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| 417 | |
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| 418 | USE indices, & |
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| 419 | ONLY: nxl, nxr, nys, nyn, nzb, nzb_u_inner, nzt |
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| 420 | |
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| 421 | USE kinds |
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| 422 | |
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| 423 | USE statistics, & |
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| 424 | ONLY: hom, sums_ls_l, weight_pres |
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| 425 | |
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| 426 | IMPLICIT NONE |
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| 427 | |
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| 428 | |
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| 429 | CHARACTER (LEN=*) :: prog_var !: |
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| 430 | |
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| 431 | REAL(wp) :: tmp_tend !: |
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| 432 | REAL(wp) :: dtm !: |
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| 433 | REAL(wp) :: dtp !: |
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| 434 | REAL(wp) :: time !: |
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| 435 | |
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| 436 | INTEGER(iwp) :: i !: |
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| 437 | INTEGER(iwp) :: j !: |
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| 438 | INTEGER(iwp) :: k !: |
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| 439 | INTEGER(iwp) :: nt !: |
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| 440 | |
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| 441 | |
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| 442 | nt = 1 |
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| 443 | DO WHILE ( time > timenudge(nt) ) |
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| 444 | nt = nt+1 |
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| 445 | ENDDO |
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| 446 | IF ( time /= timenudge(1) ) THEN |
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| 447 | nt = nt-1 |
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| 448 | ENDIF |
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| 449 | |
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| 450 | dtm = ( time - timenudge(nt) ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 451 | dtp = ( timenudge(nt+1) - time ) / ( timenudge(nt+1) - timenudge(nt) ) |
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| 452 | |
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| 453 | SELECT CASE ( prog_var ) |
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| 454 | |
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| 455 | CASE ( 'u' ) |
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| 456 | |
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| 457 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 458 | |
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| 459 | tmp_tend = - ( hom(k,1,1,0) - ( unudge(k,nt) * dtp + & |
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| 460 | unudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 461 | |
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| 462 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 463 | |
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| 464 | sums_ls_l(k,6) = sums_ls_l(k,6) + tmp_tend & |
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| 465 | * weight_pres(intermediate_timestep_count) |
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| 466 | ENDDO |
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| 467 | |
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| 468 | CASE ( 'v' ) |
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| 469 | |
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| 470 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 471 | |
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| 472 | tmp_tend = - ( hom(k,1,2,0) - ( vnudge(k,nt) * dtp + & |
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| 473 | vnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 474 | |
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| 475 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 476 | |
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| 477 | sums_ls_l(k,7) = sums_ls_l(k,7) + tmp_tend & |
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| 478 | * weight_pres(intermediate_timestep_count) |
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| 479 | ENDDO |
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| 480 | |
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| 481 | |
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| 482 | CASE ( 'pt' ) |
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| 483 | |
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| 484 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 485 | |
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| 486 | tmp_tend = - ( hom(k,1,4,0) - ( ptnudge(k,nt) * dtp + & |
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| 487 | ptnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 488 | |
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| 489 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 490 | |
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| 491 | sums_ls_l(k,4) = sums_ls_l(k,4) + tmp_tend & |
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| 492 | * weight_pres(intermediate_timestep_count) |
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| 493 | ENDDO |
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| 494 | |
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| 495 | |
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| 496 | CASE ( 'q' ) |
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| 497 | |
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| 498 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 499 | |
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| 500 | tmp_tend = - ( hom(k,1,41,0) - ( qnudge(k,nt) * dtp + & |
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| 501 | qnudge(k,nt+1) * dtm ) ) / tmp_tnudge(k) |
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| 502 | |
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| 503 | tend(k,j,i) = tend(k,j,i) + tmp_tend |
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| 504 | |
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| 505 | sums_ls_l(k,5) = sums_ls_l(k,5) + tmp_tend & |
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| 506 | * weight_pres(intermediate_timestep_count) |
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| 507 | ENDDO |
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| 508 | |
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| 509 | CASE DEFAULT |
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| 510 | message_string = 'unknown prognostic variable "' // prog_var // '"' |
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| 511 | CALL message( 'nudge', 'PA0367', 1, 2, 0, 6, 0 ) |
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| 512 | |
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| 513 | END SELECT |
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| 514 | |
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| 515 | |
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| 516 | END SUBROUTINE nudge_ij |
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| 517 | |
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| 518 | |
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| 519 | SUBROUTINE nudge_ref ( time ) |
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| 520 | |
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| 521 | USE arrays_3d, & |
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| 522 | ONLY: time_vert, ptnudge, pt_init, qnudge, q_init |
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| 523 | |
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| 524 | USE kinds |
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| 525 | |
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| 526 | |
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| 527 | IMPLICIT NONE |
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| 528 | |
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| 529 | INTEGER(iwp) :: nt !: |
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| 530 | |
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| 531 | REAL(wp) :: fac !: |
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| 532 | REAL(wp), INTENT(in) :: time !: |
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| 533 | |
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| 534 | ! |
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| 535 | !-- Interpolation in time of NUDGING_DATA for pt_init and q_init. This is |
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| 536 | !-- needed for correct upper boundary conditions for pt and q and in case that |
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| 537 | ! large scale subsidence as well as scalar Rayleigh-damping are used |
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| 538 | nt = 1 |
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| 539 | DO WHILE ( time > time_vert(nt) ) |
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| 540 | nt = nt + 1 |
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| 541 | ENDDO |
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| 542 | IF ( time /= time_vert(nt) ) THEN |
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| 543 | nt = nt - 1 |
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| 544 | ENDIF |
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| 545 | |
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| 546 | fac = ( time-time_vert(nt) ) / ( time_vert(nt+1)-time_vert(nt) ) |
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| 547 | |
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| 548 | pt_init = ptnudge(:,nt) + fac * ( ptnudge(:,nt+1) - ptnudge(:,nt) ) |
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| 549 | q_init = qnudge(:,nt) + fac * ( qnudge(:,nt+1) - qnudge(:,nt) ) |
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| 550 | |
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| 551 | END SUBROUTINE nudge_ref |
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| 552 | |
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| 553 | |
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| 554 | END MODULE nudge_mod |
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