[138] | 1 | MODULE plant_canopy_model_mod |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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[142] | 6 | ! Bugfix: remove IF statement in plant_canopy_model_ij |
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[138] | 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ----------------- |
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| 10 | ! $Id: plant_canopy_model.f90 142 2007-12-04 12:36:44Z raasch $ |
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| 11 | ! |
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[139] | 12 | ! 138 2007-11-28 10:03:58Z letzel |
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| 13 | ! Initial revision |
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| 14 | ! |
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[138] | 15 | ! Description: |
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| 16 | ! ------------ |
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| 17 | ! Evaluation of the drag due to vegetation |
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| 18 | !------------------------------------------------------------------------------! |
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| 19 | |
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| 20 | PRIVATE |
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| 21 | PUBLIC plant_canopy_model |
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| 22 | |
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| 23 | INTERFACE plant_canopy_model |
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| 24 | MODULE PROCEDURE plant_canopy_model |
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| 25 | MODULE PROCEDURE plant_canopy_model_ij |
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| 26 | END INTERFACE plant_canopy_model |
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| 27 | |
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| 28 | CONTAINS |
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| 29 | |
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| 30 | |
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| 31 | !------------------------------------------------------------------------------! |
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| 32 | ! Call for all grid points |
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| 33 | !------------------------------------------------------------------------------! |
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| 34 | SUBROUTINE plant_canopy_model( component ) |
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| 35 | |
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| 36 | USE arrays_3d |
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| 37 | USE control_parameters |
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| 38 | USE indices |
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| 39 | USE pegrid |
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| 40 | |
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| 41 | IMPLICIT NONE |
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| 42 | |
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| 43 | INTEGER :: component, i, j, k |
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| 44 | |
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| 45 | ! |
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| 46 | !-- Compute drag for the three velocity components and the SGS-TKE |
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| 47 | SELECT CASE ( component ) |
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| 48 | |
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| 49 | ! |
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| 50 | !-- u-component |
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| 51 | CASE ( 1 ) |
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| 52 | DO i = nxlu, nxr |
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| 53 | DO j = nys, nyn |
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| 54 | DO k = nzb_u_inner(j,i)+1, pch_index |
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| 55 | tend(k,j,i) = tend(k,j,i) - & |
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| 56 | cdc(k,j,i) * lad_u(k,j,i) * & |
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| 57 | SQRT( u(k,j,i)**2 + & |
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| 58 | ( ( v(k,j,i-1) + & |
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| 59 | v(k,j,i) + & |
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| 60 | v(k,j+1,i) + & |
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| 61 | v(k,j+1,i+1) ) & |
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| 62 | / 4.0 )**2 + & |
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| 63 | ( ( w(k-1,j,i-1) + & |
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| 64 | w(k-1,j,i) + & |
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| 65 | w(k,j,i-1) + & |
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| 66 | w(k,j,i) ) & |
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| 67 | / 4.0 )**2 ) * & |
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| 68 | u(k,j,i) |
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| 69 | ENDDO |
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| 70 | ENDDO |
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| 71 | ENDDO |
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| 72 | |
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| 73 | ! |
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| 74 | !-- v-component |
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| 75 | CASE ( 2 ) |
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| 76 | DO i = nxl, nxr |
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| 77 | DO j = nysv, nyn |
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| 78 | DO k = nzb_v_inner(j,i)+1, pch_index |
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| 79 | tend(k,j,i) = tend(k,j,i) - & |
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| 80 | cdc(k,j,i) * lad_v(k,j,i) * & |
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| 81 | SQRT( ( ( u(k,j-1,i) + & |
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| 82 | u(k,j-1,i+1) + & |
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| 83 | u(k,j,i) + & |
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| 84 | u(k,j,i+1) ) & |
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| 85 | / 4.0 )**2 + & |
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| 86 | v(k,j,i)**2 + & |
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| 87 | ( ( w(k-1,j-1,i) + & |
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| 88 | w(k-1,j,i) + & |
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| 89 | w(k,j-1,i) + & |
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| 90 | w(k,j,i) ) & |
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| 91 | / 4.0 )**2 ) * & |
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| 92 | v(k,j,i) |
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| 93 | ENDDO |
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| 94 | ENDDO |
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| 95 | ENDDO |
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| 96 | |
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| 97 | ! |
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| 98 | !-- w-component |
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| 99 | CASE ( 3 ) |
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| 100 | DO i = nxl, nxr |
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| 101 | DO j = nys, nyn |
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| 102 | DO k = nzb_w_inner(j,i)+1, pch_index |
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| 103 | tend(k,j,i) = tend(k,j,i) - & |
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| 104 | cdc(k,j,i) * lad_w(k,j,i) * & |
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| 105 | SQRT( ( ( u(k,j,i) + & |
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| 106 | u(k,j,i+1) + & |
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| 107 | u(k+1,j,i) + & |
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| 108 | u(k+1,j,i+1) ) & |
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| 109 | / 4.0 )**2 + & |
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| 110 | ( ( v(k,j,i) + & |
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| 111 | v(k,j+1,i) + & |
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| 112 | v(k+1,j,i) + & |
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| 113 | v(k+1,j+1,i) ) & |
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| 114 | / 4.0 )**2 + & |
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| 115 | w(k,j,i)**2 ) * & |
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| 116 | w(k,j,i) |
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| 117 | ENDDO |
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| 118 | ENDDO |
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| 119 | ENDDO |
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| 120 | |
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| 121 | ! |
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| 122 | !-- sgs-tke |
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| 123 | CASE ( 4 ) |
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| 124 | DO i = nxl, nxr |
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| 125 | DO j = nys, nyn |
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| 126 | DO k = nzb_s_inner(j,i)+1, pch_index |
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| 127 | tend(k,j,i) = tend(k,j,i) - & |
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| 128 | 2.0 * cdc(k,j,i) * lad_s(k,j,i) * & |
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| 129 | SQRT( ( ( u(k,j,i) + & |
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| 130 | u(k,j,i+1) ) & |
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| 131 | / 2.0 )**2 + & |
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| 132 | ( ( v(k,j,i) + & |
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| 133 | v(k,j+1,i) ) & |
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| 134 | / 2.0 )**2 + & |
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| 135 | ( ( w(k,j,i) + & |
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| 136 | w(k+1,j,i) ) & |
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| 137 | / 2.0 )**2 ) * & |
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| 138 | e(k,j,i) |
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| 139 | ENDDO |
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| 140 | ENDDO |
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| 141 | ENDDO |
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| 142 | |
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| 143 | CASE DEFAULT |
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| 144 | |
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| 145 | IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', & |
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| 146 | component |
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| 147 | CALL local_stop |
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| 148 | |
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| 149 | END SELECT |
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| 150 | |
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| 151 | END SUBROUTINE plant_canopy_model |
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| 152 | |
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| 153 | |
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| 154 | !------------------------------------------------------------------------------! |
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| 155 | ! Call for grid point i,j |
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| 156 | !------------------------------------------------------------------------------! |
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| 157 | SUBROUTINE plant_canopy_model_ij( i, j, component ) |
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| 158 | |
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| 159 | USE arrays_3d |
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| 160 | USE control_parameters |
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| 161 | USE indices |
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| 162 | USE pegrid |
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| 163 | |
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| 164 | IMPLICIT NONE |
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| 165 | |
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| 166 | INTEGER :: component, i, j, k |
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| 167 | |
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| 168 | ! |
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[142] | 169 | !-- Compute drag for the three velocity components |
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| 170 | SELECT CASE ( component ) |
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[138] | 171 | |
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| 172 | ! |
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[142] | 173 | !-- u-component |
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| 174 | CASE ( 1 ) |
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| 175 | DO k = nzb_u_inner(j,i)+1, pch_index |
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| 176 | tend(k,j,i) = tend(k,j,i) - & |
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| 177 | cdc(k,j,i) * lad_u(k,j,i) * & |
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| 178 | SQRT( u(k,j,i)**2 + & |
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| 179 | ( ( v(k,j,i-1) + & |
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| 180 | v(k,j,i) + & |
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| 181 | v(k,j+1,i) + & |
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| 182 | v(k,j+1,i+1) ) & |
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| 183 | / 4.0 )**2 + & |
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| 184 | ( ( w(k-1,j,i-1) + & |
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| 185 | w(k-1,j,i) + & |
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| 186 | w(k,j,i-1) + & |
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| 187 | w(k,j,i) ) & |
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| 188 | / 4.0 )**2 ) * & |
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| 189 | u(k,j,i) |
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| 190 | ENDDO |
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[138] | 191 | |
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| 192 | ! |
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[142] | 193 | !-- v-component |
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| 194 | CASE ( 2 ) |
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| 195 | DO k = nzb_v_inner(j,i)+1, pch_index |
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| 196 | tend(k,j,i) = tend(k,j,i) - & |
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| 197 | cdc(k,j,i) * lad_v(k,j,i) * & |
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| 198 | SQRT( ( ( u(k,j-1,i) + & |
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| 199 | u(k,j-1,i+1) + & |
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| 200 | u(k,j,i) + & |
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| 201 | u(k,j,i+1) ) & |
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| 202 | / 4.0 )**2 + & |
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| 203 | v(k,j,i)**2 + & |
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| 204 | ( ( w(k-1,j-1,i) + & |
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| 205 | w(k-1,j,i) + & |
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| 206 | w(k,j-1,i) + & |
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| 207 | w(k,j,i) ) & |
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| 208 | / 4.0 )**2 ) * & |
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| 209 | v(k,j,i) |
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| 210 | ENDDO |
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[138] | 211 | |
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| 212 | ! |
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[142] | 213 | !-- w-component |
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| 214 | CASE ( 3 ) |
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| 215 | DO k = nzb_w_inner(j,i)+1, pch_index |
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| 216 | tend(k,j,i) = tend(k,j,i) - & |
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| 217 | cdc(k,j,i) * lad_w(k,j,i) * & |
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| 218 | SQRT( ( ( u(k,j,i) + & |
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| 219 | u(k,j,i+1) + & |
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| 220 | u(k+1,j,i) + & |
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| 221 | u(k+1,j,i+1) ) & |
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| 222 | / 4.0 )**2 + & |
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| 223 | ( ( v(k,j,i) + & |
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| 224 | v(k,j+1,i) + & |
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| 225 | v(k+1,j,i) + & |
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| 226 | v(k+1,j+1,i) ) & |
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| 227 | / 4.0 )**2 + & |
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| 228 | w(k,j,i)**2 ) * & |
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| 229 | w(k,j,i) |
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[138] | 230 | |
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[142] | 231 | ENDDO |
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[138] | 232 | |
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| 233 | ! |
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[142] | 234 | !-- sgs-tke |
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| 235 | CASE ( 4 ) |
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| 236 | DO k = nzb_s_inner(j,i)+1, pch_index |
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| 237 | tend(k,j,i) = tend(k,j,i) - & |
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| 238 | 2.0 * cdc(k,j,i) * lad_s(k,j,i) * & |
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| 239 | SQRT( ( ( u(k,j,i) + & |
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| 240 | u(k,j,i+1) ) & |
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| 241 | / 2.0 )**2 + & |
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| 242 | ( ( v(k,j,i) + & |
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| 243 | v(k,j+1,i) ) & |
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| 244 | / 2.0 )**2 + & |
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| 245 | ( ( w(k,j,i) + & |
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| 246 | w(k+1,j,i) ) & |
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| 247 | / 2.0 )**2 ) * & |
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| 248 | e(k,j,i) |
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| 249 | ENDDO |
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[138] | 250 | |
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[142] | 251 | CASE DEFAULT |
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[138] | 252 | |
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[142] | 253 | IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', & |
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| 254 | component |
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| 255 | CALL local_stop |
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[138] | 256 | |
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[142] | 257 | END SELECT |
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[138] | 258 | |
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| 259 | END SUBROUTINE plant_canopy_model_ij |
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| 260 | |
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| 261 | END MODULE plant_canopy_model_mod |
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