| 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 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: nudging.f90 1356 2014-04-10 10:24:12Z witha $ |
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| 27 | ! |
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| 28 | ! 1355 2014-04-10 10:21:29Z heinze |
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| 29 | ! Error message specified. |
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| 30 | ! |
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| 31 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 32 | ! REAL constants provided with KIND-attribute |
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| 33 | ! |
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| 34 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 35 | ! ONLY-attribute added to USE-statements, |
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| 36 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 37 | ! kinds are defined in new module kinds, |
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| 38 | ! old module precision_kind is removed, |
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| 39 | ! revision history before 2012 removed, |
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| 40 | ! comment fields (!:) to be used for variable explanations added to |
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| 41 | ! all variable declaration statements |
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| 42 | ! |
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| 43 | ! 1318 2014-03-17 13:35:16Z raasch |
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| 44 | ! module interfaces removed |
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| 45 | ! |
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| 46 | ! 1268 2013-12-12 09:47:53Z heinze |
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| 47 | ! bugfix: argument of calc_mean_profile corrected |
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| 48 | ! |
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| 49 | ! 1251 2013-11-07 08:14:30Z heinze |
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| 50 | ! bugfix: calculate dtm and dtp also in vector version |
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| 51 | ! |
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| 52 | ! 1249 2013-11-06 10:45:47Z heinze |
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| 53 | ! remove call of user module |
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| 54 | ! reformatting |
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| 55 | ! |
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| 56 | ! 1241 2013-10-30 11:36:58Z heinze |
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| 57 | ! Initial revision |
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| 58 | ! |
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| 59 | ! Description: |
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| 60 | ! ------------ |
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| 61 | ! Nudges u, v, pt and q to given profiles on a relaxation timescale tnudge. |
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| 62 | ! Profiles are read in from NUDGIN_DATA. Code is based on Neggers et al. (2012) |
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| 63 | ! and also part of DALES and UCLA-LES. |
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| 64 | !--------------------------------------------------------------------------------! |
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| 65 | |
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| 66 | PRIVATE |
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| 67 | PUBLIC init_nudge, nudge |
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| 68 | SAVE |
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| 69 | |
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| 70 | INTERFACE nudge |
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| 71 | MODULE PROCEDURE nudge |
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| 72 | MODULE PROCEDURE nudge_ij |
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| 73 | END INTERFACE nudge |
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| 74 | |
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| 75 | CONTAINS |
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| 76 | |
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| 77 | SUBROUTINE init_nudge |
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| 78 | |
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| 79 | USE arrays_3d, & |
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| 80 | ONLY: ptnudge, qnudge, timenudge, tnudge, unudge, vnudge, wnudge, & |
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| 81 | zu |
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| 82 | |
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| 83 | USE control_parameters, & |
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| 84 | ONLY: dt_3d, lptnudge, lqnudge, lunudge, lvnudge, lwnudge, & |
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| 85 | message_string, ntnudge |
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| 86 | |
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| 87 | USE indices, & |
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| 88 | ONLY: nzb, nzt |
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| 89 | |
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| 90 | USE kinds |
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| 91 | |
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| 92 | IMPLICIT NONE |
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| 93 | |
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| 94 | |
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| 95 | INTEGER(iwp) :: finput = 90 !: |
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| 96 | INTEGER(iwp) :: ierrn !: |
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| 97 | INTEGER(iwp) :: k !: |
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| 98 | INTEGER(iwp) :: t !: |
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| 99 | |
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| 100 | CHARACTER(1) :: hash !: |
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| 101 | |
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| 102 | REAL(wp) :: highheight !: |
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| 103 | REAL(wp) :: highqnudge !: |
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| 104 | REAL(wp) :: highptnudge !: |
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| 105 | REAL(wp) :: highunudge !: |
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| 106 | REAL(wp) :: highvnudge !: |
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| 107 | REAL(wp) :: highwnudge !: |
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| 108 | REAL(wp) :: hightnudge !: |
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| 109 | |
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| 110 | REAL(wp) :: lowheight !: |
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| 111 | REAL(wp) :: lowqnudge !: |
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| 112 | REAL(wp) :: lowptnudge !: |
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| 113 | REAL(wp) :: lowunudge !: |
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| 114 | REAL(wp) :: lowvnudge !: |
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| 115 | REAL(wp) :: lowwnudge !: |
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| 116 | REAL(wp) :: lowtnudge !: |
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| 117 | |
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| 118 | REAL(wp) :: fac !: |
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| 119 | |
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| 120 | ALLOCATE( ptnudge(nzb:nzt+1,1:ntnudge), qnudge(nzb:nzt+1,1:ntnudge), & |
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| 121 | tnudge(nzb:nzt+1,1:ntnudge), unudge(nzb:nzt+1,1:ntnudge), & |
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| 122 | vnudge(nzb:nzt+1,1:ntnudge), wnudge(nzb:nzt+1,1:ntnudge) ) |
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| 123 | |
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| 124 | ALLOCATE( timenudge(0:ntnudge) ) |
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| 125 | |
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| 126 | |
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| 127 | ptnudge = 0.0_wp; qnudge = 0.0_wp; tnudge = 0.0_wp; unudge = 0.0_wp |
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| 128 | vnudge = 0.0_wp; wnudge = 0.0_wp; timenudge = 0.0_wp |
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| 129 | |
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| 130 | t = 0 |
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| 131 | OPEN ( finput, FILE='NUDGING_DATA', STATUS='OLD', & |
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| 132 | FORM='FORMATTED', IOSTAT=ierrn ) |
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| 133 | |
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| 134 | IF ( ierrn /= 0 ) THEN |
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| 135 | message_string = 'file NUDGING_DATA does not exist' |
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| 136 | CALL message( 'nudging', 'PA0365', 1, 2, 0, 6, 0 ) |
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| 137 | ENDIF |
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| 138 | |
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| 139 | ierrn = 0 |
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| 140 | |
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| 141 | rloop:DO |
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| 142 | t = t + 1 |
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| 143 | hash = "#" |
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| 144 | ierrn = 1 ! not zero |
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| 145 | ! |
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| 146 | !-- Search for the next line consisting of "# time", |
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| 147 | !-- from there onwards the profiles will be read |
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| 148 | DO WHILE ( .NOT. ( hash == "#" .AND. ierrn == 0 ) ) |
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| 149 | |
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| 150 | READ ( finput, *, IOSTAT=ierrn ) hash, timenudge(t) |
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| 151 | IF ( ierrn < 0 ) EXIT rloop |
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| 152 | |
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| 153 | ENDDO |
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| 154 | |
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| 155 | ierrn = 0 |
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| 156 | READ ( finput, *, IOSTAT=ierrn ) lowheight, lowtnudge, lowunudge, & |
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| 157 | lowvnudge, lowwnudge , lowptnudge, & |
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| 158 | lowqnudge |
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| 159 | |
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| 160 | IF ( ierrn /= 0 ) THEN |
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| 161 | message_string = 'errors in file NUDGING_DATA' |
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| 162 | CALL message( 'nudging', 'PA0366', 1, 2, 0, 6, 0 ) |
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| 163 | ENDIF |
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| 164 | |
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| 165 | ierrn = 0 |
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| 166 | READ ( finput, *, IOSTAT=ierrn ) highheight, hightnudge, highunudge, & |
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| 167 | highvnudge, highwnudge , highptnudge, & |
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| 168 | highqnudge |
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| 169 | |
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| 170 | IF ( ierrn /= 0 ) THEN |
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| 171 | message_string = 'errors in file NUDGING_DATA' |
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| 172 | CALL message( 'nudging', 'PA0366', 1, 2, 0, 6, 0 ) |
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| 173 | ENDIF |
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| 174 | |
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| 175 | DO k = nzb, nzt+1 |
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| 176 | IF ( highheight < zu(k) ) THEN |
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| 177 | lowheight = highheight |
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| 178 | lowtnudge = hightnudge |
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| 179 | lowunudge = highunudge |
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| 180 | lowvnudge = highvnudge |
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| 181 | lowwnudge = highwnudge |
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| 182 | lowptnudge = highptnudge |
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| 183 | lowqnudge = highqnudge |
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| 184 | |
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| 185 | ierrn = 0 |
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| 186 | READ ( finput, *, IOSTAT=ierrn ) highheight , hightnudge , & |
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| 187 | highunudge , highvnudge , & |
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| 188 | highwnudge , highptnudge, & |
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| 189 | highqnudge |
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| 190 | IF (ierrn /= 0 ) THEN |
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| 191 | WRITE( message_string, * ) 'zu(nzt+1) = ', zu(nzt+1), 'm is ',& |
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| 192 | 'higher than the maximum height in NUDING_DATA which ', & |
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| 193 | 'is ', lowheight, 'm. Interpolation on PALM ', & |
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| 194 | 'grid is not possible.' |
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| 195 | CALL message( 'nudging', 'PA0364', 1, 2, 0, 6, 0 ) |
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| 196 | ENDIF |
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| 197 | ENDIF |
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| 198 | |
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| 199 | ! |
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| 200 | !-- Interpolation of prescribed profiles in space |
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| 201 | |
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| 202 | fac = ( highheight - zu(k) ) / ( highheight - lowheight ) |
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| 203 | |
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| 204 | tnudge(k,t) = fac * lowtnudge + ( 1.0_wp - fac ) * hightnudge |
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| 205 | unudge(k,t) = fac * lowunudge + ( 1.0_wp - fac ) * highunudge |
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| 206 | vnudge(k,t) = fac * lowvnudge + ( 1.0_wp - fac ) * highvnudge |
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| 207 | wnudge(k,t) = fac * lowwnudge + ( 1.0_wp - fac ) * highwnudge |
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| 208 | ptnudge(k,t) = fac * lowptnudge + ( 1.0_wp - fac ) * highptnudge |
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| 209 | qnudge(k,t) = fac * lowqnudge + ( 1.0_wp - fac ) * highqnudge |
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| 210 | ENDDO |
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| 211 | |
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| 212 | ENDDO rloop |
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| 213 | |
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| 214 | CLOSE ( finput ) |
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| 215 | |
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| 216 | ! |
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| 217 | !-- Prevent nudging if nudging profiles exhibt too small values |
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| 218 | !-- not used so far |
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| 219 | lptnudge = ANY( ABS( ptnudge ) > 1.0e-8_wp ) |
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| 220 | lqnudge = ANY( ABS( qnudge ) > 1.0e-8_wp ) |
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| 221 | lunudge = ANY( ABS( unudge ) > 1.0e-8_wp ) |
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| 222 | lvnudge = ANY( ABS( vnudge ) > 1.0e-8_wp ) |
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| 223 | lwnudge = ANY( ABS( wnudge ) > 1.0e-8_wp ) |
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| 224 | |
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| 225 | END SUBROUTINE init_nudge |
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| 226 | |
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| 227 | !------------------------------------------------------------------------------! |
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| 228 | ! Call for all grid points |
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| 229 | !------------------------------------------------------------------------------! |
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| 230 | SUBROUTINE nudge ( time, prog_var ) |
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| 231 | |
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| 232 | USE arrays_3d, & |
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| 233 | ONLY: pt, ptnudge, q, qnudge, tend, timenudge, tnudge, u, unudge, & |
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| 234 | v, vnudge |
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| 235 | |
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| 236 | USE buoyancy_mod, & |
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| 237 | ONLY: calc_mean_profile |
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| 238 | |
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| 239 | USE control_parameters, & |
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| 240 | ONLY: dt_3d, message_string |
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| 241 | |
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| 242 | USE indices, & |
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| 243 | ONLY: nxl, nxr, nys, nyn, nzb, nzb_u_inner, nzt |
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| 244 | |
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| 245 | USE kinds, & |
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| 246 | ONLY: iwp, wp |
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| 247 | |
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| 248 | USE statistics, & |
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| 249 | ONLY: hom |
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| 250 | |
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| 251 | IMPLICIT NONE |
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| 252 | |
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| 253 | CHARACTER (LEN=*) :: prog_var !: |
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| 254 | |
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| 255 | REAL(wp) :: currtnudge !: |
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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) :: i !: |
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| 261 | INTEGER(iwp) :: j !: |
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| 262 | INTEGER(iwp) :: k !: |
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| 263 | INTEGER(iwp) :: t !: |
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| 264 | |
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| 265 | |
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| 266 | t = 1 |
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| 267 | DO WHILE ( time > timenudge(t) ) |
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| 268 | t = t+1 |
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| 269 | ENDDO |
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| 270 | IF ( time /= timenudge(1) ) THEN |
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| 271 | t = t-1 |
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| 272 | ENDIF |
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| 273 | |
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| 274 | dtm = ( time - timenudge(t) ) / ( timenudge(t+1) - timenudge(t) ) |
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| 275 | dtp = ( timenudge(t+1) - time ) / ( timenudge(t+1) - timenudge(t) ) |
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| 276 | |
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| 277 | SELECT CASE ( prog_var ) |
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| 278 | |
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| 279 | CASE ( 'u' ) |
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| 280 | |
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| 281 | CALL calc_mean_profile( u, 1, 'nudging' ) |
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| 282 | |
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| 283 | DO i = nxl, nxr |
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| 284 | DO j = nys, nyn |
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| 285 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 286 | |
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| 287 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + & |
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| 288 | tnudge(k,t+1) * dtm ) |
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| 289 | |
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| 290 | |
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| 291 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,1,0) - & |
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| 292 | ( unudge(k,t) * dtp + & |
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| 293 | unudge(k,t+1) * dtm ) ) / currtnudge |
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| 294 | ENDDO |
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| 295 | ENDDO |
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| 296 | ENDDO |
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| 297 | |
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| 298 | CASE ( 'v' ) |
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| 299 | |
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| 300 | CALL calc_mean_profile( v, 2, 'nudging' ) |
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| 301 | |
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| 302 | DO i = nxl, nxr |
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| 303 | DO j = nys, nyn |
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| 304 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 305 | |
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| 306 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + & |
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| 307 | tnudge(k,t+1) * dtm ) |
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| 308 | |
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| 309 | |
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| 310 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,2,0) - & |
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| 311 | ( vnudge(k,t) * dtp + & |
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| 312 | vnudge(k,t+1) * dtm ) ) / currtnudge |
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| 313 | ENDDO |
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| 314 | ENDDO |
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| 315 | ENDDO |
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| 316 | |
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| 317 | CASE ( 'pt' ) |
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| 318 | |
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| 319 | CALL calc_mean_profile( pt, 4, 'nudging' ) |
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| 320 | |
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| 321 | DO i = nxl, nxr |
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| 322 | DO j = nys, nyn |
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| 323 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 324 | |
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| 325 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + & |
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| 326 | tnudge(k,t+1) * dtm ) |
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| 327 | |
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| 328 | |
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| 329 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,4,0) - & |
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| 330 | ( ptnudge(k,t) * dtp + & |
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| 331 | ptnudge(k,t+1) * dtm ) ) / currtnudge |
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| 332 | ENDDO |
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| 333 | ENDDO |
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| 334 | ENDDO |
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| 335 | |
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| 336 | CASE ( 'q' ) |
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| 337 | |
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| 338 | CALL calc_mean_profile( q, 41, 'nudging' ) |
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| 339 | |
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| 340 | DO i = nxl, nxr |
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| 341 | DO j = nys, nyn |
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| 342 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 343 | |
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| 344 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + & |
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| 345 | tnudge(k,t+1) * dtm ) |
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| 346 | |
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| 347 | |
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| 348 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,41,0) - & |
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| 349 | ( qnudge(k,t) * dtp + & |
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| 350 | qnudge(k,t+1) * dtm ) ) / currtnudge |
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| 351 | ENDDO |
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| 352 | ENDDO |
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| 353 | ENDDO |
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| 354 | |
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| 355 | CASE DEFAULT |
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| 356 | message_string = 'unknown prognostic variable "' // prog_var // '"' |
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| 357 | CALL message( 'nudge', 'PA0367', 1, 2, 0, 6, 0 ) |
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| 358 | |
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| 359 | END SELECT |
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| 360 | |
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| 361 | END SUBROUTINE nudge |
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| 362 | |
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| 363 | |
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| 364 | !------------------------------------------------------------------------------! |
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| 365 | ! Call for grid point i,j |
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| 366 | !------------------------------------------------------------------------------! |
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| 367 | |
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| 368 | SUBROUTINE nudge_ij( i, j, time, prog_var ) |
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| 369 | |
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| 370 | USE arrays_3d, & |
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| 371 | ONLY: pt, ptnudge, q, qnudge, tend, timenudge, tnudge, u, unudge, & |
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| 372 | v, vnudge |
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| 373 | |
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| 374 | USE buoyancy_mod, & |
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| 375 | ONLY: calc_mean_profile |
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| 376 | |
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| 377 | USE control_parameters, & |
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| 378 | ONLY: dt_3d, message_string |
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| 379 | |
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| 380 | USE indices, & |
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| 381 | ONLY: nxl, nxr, nys, nyn, nzb, nzb_u_inner, nzt |
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| 382 | |
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| 383 | USE kinds, & |
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| 384 | ONLY: iwp, wp |
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| 385 | |
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| 386 | USE statistics, & |
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| 387 | ONLY: hom |
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| 388 | |
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| 389 | IMPLICIT NONE |
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| 390 | |
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| 391 | |
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| 392 | CHARACTER (LEN=*) :: prog_var !: |
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| 393 | |
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| 394 | REAL(wp) :: currtnudge !: |
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| 395 | REAL(wp) :: dtm !: |
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| 396 | REAL(wp) :: dtp !: |
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| 397 | REAL(wp) :: time !: |
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| 398 | |
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| 399 | INTEGER(iwp) :: i !: |
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| 400 | INTEGER(iwp) :: j !: |
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| 401 | INTEGER(iwp) :: k !: |
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| 402 | INTEGER(iwp) :: t !: |
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| 403 | |
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| 404 | |
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| 405 | t = 1 |
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| 406 | DO WHILE ( time > timenudge(t) ) |
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| 407 | t = t+1 |
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| 408 | ENDDO |
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| 409 | IF ( time /= timenudge(1) ) THEN |
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| 410 | t = t-1 |
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| 411 | ENDIF |
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| 412 | |
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| 413 | dtm = ( time - timenudge(t) ) / ( timenudge(t+1) - timenudge(t) ) |
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| 414 | dtp = ( timenudge(t+1) - time ) / ( timenudge(t+1) - timenudge(t) ) |
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| 415 | |
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| 416 | SELECT CASE ( prog_var ) |
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| 417 | |
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| 418 | CASE ( 'u' ) |
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| 419 | |
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| 420 | CALL calc_mean_profile( u, 1, 'nudging' ) |
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| 421 | |
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| 422 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 423 | |
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| 424 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + tnudge(k,t+1) * dtm ) |
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| 425 | |
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| 426 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,1,0) - & |
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| 427 | ( unudge(k,t) * dtp + & |
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| 428 | unudge(k,t+1) * dtm ) ) / currtnudge |
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| 429 | ENDDO |
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| 430 | |
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| 431 | CASE ( 'v' ) |
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| 432 | |
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| 433 | CALL calc_mean_profile( v, 2, 'nudging' ) |
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| 434 | |
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| 435 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 436 | |
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| 437 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + tnudge(k,t+1) * dtm ) |
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| 438 | |
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| 439 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,2,0) - & |
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| 440 | ( vnudge(k,t) * dtp + & |
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| 441 | vnudge(k,t+1) * dtm ) ) / currtnudge |
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| 442 | ENDDO |
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| 443 | |
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| 444 | |
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| 445 | CASE ( 'pt' ) |
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| 446 | |
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| 447 | CALL calc_mean_profile( pt, 4, 'nudging' ) |
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| 448 | |
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| 449 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 450 | |
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| 451 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + tnudge(k,t+1) * dtm ) |
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| 452 | |
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| 453 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,4,0) - & |
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| 454 | ( ptnudge(k,t) * dtp + & |
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| 455 | ptnudge(k,t+1) * dtm ) ) / currtnudge |
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| 456 | ENDDO |
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| 457 | |
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| 458 | |
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| 459 | CASE ( 'q' ) |
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| 460 | |
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| 461 | CALL calc_mean_profile( q, 41, 'nudging' ) |
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| 462 | |
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| 463 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 464 | |
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| 465 | currtnudge = MAX( dt_3d, tnudge(k,t) * dtp + tnudge(k,t+1) * dtm ) |
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| 466 | |
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| 467 | tend(k,j,i) = tend(k,j,i) - ( hom(k,1,41,0) - & |
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| 468 | ( qnudge(k,t) * dtp + & |
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| 469 | qnudge(k,t+1) * dtm ) ) / currtnudge |
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| 470 | ENDDO |
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| 471 | |
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| 472 | CASE DEFAULT |
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| 473 | message_string = 'unknown prognostic variable "' // prog_var // '"' |
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| 474 | CALL message( 'nudge', 'PA0367', 1, 2, 0, 6, 0 ) |
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| 475 | |
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| 476 | END SELECT |
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| 477 | |
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| 478 | |
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| 479 | END SUBROUTINE nudge_ij |
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| 480 | |
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| 481 | END MODULE nudge_mod |
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