[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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| 6 | ! Initial revision |
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| 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ----------------- |
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| 10 | ! $Id: plant_canopy_model.f90 138 2007-11-28 10:03:58Z letzel $ |
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| 11 | ! |
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| 12 | ! Description: |
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| 13 | ! ------------ |
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| 14 | ! Evaluation of the drag due to vegetation |
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| 15 | !------------------------------------------------------------------------------! |
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| 16 | |
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| 17 | PRIVATE |
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| 18 | PUBLIC plant_canopy_model |
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| 19 | |
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| 20 | INTERFACE plant_canopy_model |
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| 21 | MODULE PROCEDURE plant_canopy_model |
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| 22 | MODULE PROCEDURE plant_canopy_model_ij |
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| 23 | END INTERFACE plant_canopy_model |
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| 24 | |
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| 25 | CONTAINS |
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| 26 | |
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| 27 | |
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| 28 | !------------------------------------------------------------------------------! |
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| 29 | ! Call for all grid points |
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| 30 | !------------------------------------------------------------------------------! |
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| 31 | SUBROUTINE plant_canopy_model( component ) |
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| 32 | |
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| 33 | USE arrays_3d |
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| 34 | USE control_parameters |
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| 35 | USE indices |
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| 36 | USE pegrid |
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| 37 | |
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| 38 | IMPLICIT NONE |
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| 39 | |
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| 40 | INTEGER :: component, i, j, k |
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| 41 | |
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| 42 | ! |
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| 43 | !-- Compute drag for the three velocity components and the SGS-TKE |
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| 44 | SELECT CASE ( component ) |
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| 45 | |
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| 46 | ! |
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| 47 | !-- u-component |
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| 48 | CASE ( 1 ) |
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| 49 | DO i = nxlu, nxr |
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| 50 | DO j = nys, nyn |
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| 51 | DO k = nzb_u_inner(j,i)+1, pch_index |
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| 52 | tend(k,j,i) = tend(k,j,i) - & |
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| 53 | cdc(k,j,i) * lad_u(k,j,i) * & |
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| 54 | SQRT( u(k,j,i)**2 + & |
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| 55 | ( ( v(k,j,i-1) + & |
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| 56 | v(k,j,i) + & |
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| 57 | v(k,j+1,i) + & |
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| 58 | v(k,j+1,i+1) ) & |
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| 59 | / 4.0 )**2 + & |
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| 60 | ( ( w(k-1,j,i-1) + & |
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| 61 | w(k-1,j,i) + & |
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| 62 | w(k,j,i-1) + & |
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| 63 | w(k,j,i) ) & |
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| 64 | / 4.0 )**2 ) * & |
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| 65 | u(k,j,i) |
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| 66 | ENDDO |
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| 67 | ENDDO |
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| 68 | ENDDO |
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| 69 | |
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| 70 | ! |
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| 71 | !-- v-component |
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| 72 | CASE ( 2 ) |
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| 73 | DO i = nxl, nxr |
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| 74 | DO j = nysv, nyn |
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| 75 | DO k = nzb_v_inner(j,i)+1, pch_index |
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| 76 | tend(k,j,i) = tend(k,j,i) - & |
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| 77 | cdc(k,j,i) * lad_v(k,j,i) * & |
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| 78 | SQRT( ( ( u(k,j-1,i) + & |
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| 79 | u(k,j-1,i+1) + & |
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| 80 | u(k,j,i) + & |
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| 81 | u(k,j,i+1) ) & |
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| 82 | / 4.0 )**2 + & |
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| 83 | v(k,j,i)**2 + & |
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| 84 | ( ( w(k-1,j-1,i) + & |
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| 85 | w(k-1,j,i) + & |
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| 86 | w(k,j-1,i) + & |
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| 87 | w(k,j,i) ) & |
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| 88 | / 4.0 )**2 ) * & |
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| 89 | v(k,j,i) |
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| 90 | ENDDO |
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| 91 | ENDDO |
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| 92 | ENDDO |
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| 93 | |
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| 94 | ! |
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| 95 | !-- w-component |
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| 96 | CASE ( 3 ) |
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| 97 | DO i = nxl, nxr |
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| 98 | DO j = nys, nyn |
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| 99 | DO k = nzb_w_inner(j,i)+1, pch_index |
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| 100 | tend(k,j,i) = tend(k,j,i) - & |
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| 101 | cdc(k,j,i) * lad_w(k,j,i) * & |
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| 102 | SQRT( ( ( u(k,j,i) + & |
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| 103 | u(k,j,i+1) + & |
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| 104 | u(k+1,j,i) + & |
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| 105 | u(k+1,j,i+1) ) & |
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| 106 | / 4.0 )**2 + & |
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| 107 | ( ( v(k,j,i) + & |
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| 108 | v(k,j+1,i) + & |
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| 109 | v(k+1,j,i) + & |
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| 110 | v(k+1,j+1,i) ) & |
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| 111 | / 4.0 )**2 + & |
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| 112 | w(k,j,i)**2 ) * & |
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| 113 | w(k,j,i) |
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| 114 | ENDDO |
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| 115 | ENDDO |
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| 116 | ENDDO |
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| 117 | |
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| 118 | ! |
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| 119 | !-- sgs-tke |
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| 120 | CASE ( 4 ) |
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| 121 | DO i = nxl, nxr |
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| 122 | DO j = nys, nyn |
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| 123 | DO k = nzb_s_inner(j,i)+1, pch_index |
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| 124 | tend(k,j,i) = tend(k,j,i) - & |
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| 125 | 2.0 * cdc(k,j,i) * lad_s(k,j,i) * & |
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| 126 | SQRT( ( ( u(k,j,i) + & |
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| 127 | u(k,j,i+1) ) & |
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| 128 | / 2.0 )**2 + & |
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| 129 | ( ( v(k,j,i) + & |
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| 130 | v(k,j+1,i) ) & |
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| 131 | / 2.0 )**2 + & |
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| 132 | ( ( w(k,j,i) + & |
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| 133 | w(k+1,j,i) ) & |
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| 134 | / 2.0 )**2 ) * & |
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| 135 | e(k,j,i) |
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| 136 | ENDDO |
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| 137 | ENDDO |
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| 138 | ENDDO |
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| 139 | |
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| 140 | CASE DEFAULT |
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| 141 | |
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| 142 | IF ( myid == 0 ) PRINT*,'+++ pcm: wrong component: ', & |
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| 143 | component |
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| 144 | CALL local_stop |
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| 145 | |
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| 146 | END SELECT |
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| 147 | |
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| 148 | END SUBROUTINE plant_canopy_model |
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| 149 | |
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| 150 | |
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| 151 | !------------------------------------------------------------------------------! |
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| 152 | ! Call for grid point i,j |
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| 153 | !------------------------------------------------------------------------------! |
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| 154 | SUBROUTINE plant_canopy_model_ij( i, j, component ) |
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| 155 | |
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| 156 | USE arrays_3d |
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| 157 | USE control_parameters |
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| 158 | USE indices |
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| 159 | USE pegrid |
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| 160 | |
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| 161 | IMPLICIT NONE |
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| 162 | |
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| 163 | INTEGER :: component, i, j, k |
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| 164 | |
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| 165 | IF ( drag_coefficient /= 0.0 ) THEN |
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| 166 | |
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| 167 | ! |
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| 168 | !-- Compute drag for the three velocity components |
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| 169 | SELECT CASE ( component ) |
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| 170 | |
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| 171 | ! |
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| 172 | !-- u-component |
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| 173 | CASE ( 1 ) |
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| 174 | DO k = nzb_u_inner(j,i)+1, pch_index |
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| 175 | tend(k,j,i) = tend(k,j,i) - & |
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| 176 | cdc(k,j,i) * lad_u(k,j,i) * & |
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| 177 | SQRT( u(k,j,i)**2 + & |
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| 178 | ( ( v(k,j,i-1) + & |
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| 179 | v(k,j,i) + & |
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| 180 | v(k,j+1,i) + & |
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| 181 | v(k,j+1,i+1) ) & |
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| 182 | / 4.0 )**2 + & |
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| 183 | ( ( w(k-1,j,i-1) + & |
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| 184 | w(k-1,j,i) + & |
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| 185 | w(k,j,i-1) + & |
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| 186 | w(k,j,i) ) & |
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| 187 | / 4.0 )**2 ) * & |
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| 188 | u(k,j,i) |
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| 189 | ENDDO |
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| 190 | |
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| 191 | ! |
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| 192 | !-- v-component |
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| 193 | CASE ( 2 ) |
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| 194 | DO k = nzb_v_inner(j,i)+1, pch_index |
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| 195 | tend(k,j,i) = tend(k,j,i) - & |
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| 196 | cdc(k,j,i) * lad_v(k,j,i) * & |
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| 197 | SQRT( ( ( u(k,j-1,i) + & |
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| 198 | u(k,j-1,i+1) + & |
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| 199 | u(k,j,i) + & |
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| 200 | u(k,j,i+1) ) & |
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| 201 | / 4.0 )**2 + & |
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| 202 | v(k,j,i)**2 + & |
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| 203 | ( ( w(k-1,j-1,i) + & |
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| 204 | w(k-1,j,i) + & |
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| 205 | w(k,j-1,i) + & |
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| 206 | w(k,j,i) ) & |
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| 207 | / 4.0 )**2 ) * & |
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| 208 | v(k,j,i) |
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| 209 | ENDDO |
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| 210 | |
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| 211 | ! |
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| 212 | !-- w-component |
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| 213 | CASE ( 3 ) |
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| 214 | DO k = nzb_w_inner(j,i)+1, pch_index |
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| 215 | tend(k,j,i) = tend(k,j,i) - & |
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| 216 | cdc(k,j,i) * lad_w(k,j,i) * & |
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| 217 | SQRT( ( ( u(k,j,i) + & |
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| 218 | u(k,j,i+1) + & |
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| 219 | u(k+1,j,i) + & |
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| 220 | u(k+1,j,i+1) ) & |
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| 221 | / 4.0 )**2 + & |
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| 222 | ( ( v(k,j,i) + & |
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| 223 | v(k,j+1,i) + & |
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| 224 | v(k+1,j,i) + & |
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| 225 | v(k+1,j+1,i) ) & |
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| 226 | / 4.0 )**2 + & |
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| 227 | w(k,j,i)**2 ) * & |
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| 228 | w(k,j,i) |
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| 229 | |
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| 230 | ENDDO |
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| 231 | |
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| 232 | ! |
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| 233 | !-- sgs-tke |
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| 234 | CASE ( 4 ) |
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| 235 | DO k = nzb_s_inner(j,i)+1, pch_index |
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| 236 | tend(k,j,i) = tend(k,j,i) - & |
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| 237 | 2.0 * cdc(k,j,i) * lad_s(k,j,i) * & |
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| 238 | SQRT( ( ( u(k,j,i) + & |
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| 239 | u(k,j,i+1) ) & |
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| 240 | / 2.0 )**2 + & |
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| 241 | ( ( v(k,j,i) + & |
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| 242 | v(k,j+1,i) ) & |
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| 243 | / 2.0 )**2 + & |
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| 244 | ( ( w(k,j,i) + & |
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| 245 | w(k+1,j,i) ) & |
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| 246 | / 2.0 )**2 ) * & |
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| 247 | e(k,j,i) |
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| 248 | |
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| 249 | ENDDO |
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| 250 | |
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| 251 | CASE DEFAULT |
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| 252 | |
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| 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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| 256 | |
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| 257 | END SELECT |
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| 258 | |
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| 259 | ENDIF |
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| 260 | |
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| 261 | END SUBROUTINE plant_canopy_model_ij |
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| 262 | |
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| 263 | END MODULE plant_canopy_model_mod |
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