1 | SUBROUTINE advec_s_ups( s, var_char ) |
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2 | |
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3 | !------------------------------------------------------------------------------! |
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4 | ! Current revisions: |
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5 | ! ----------------- |
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6 | ! |
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7 | ! |
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8 | ! Former revisions: |
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9 | ! ----------------- |
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10 | ! $Id: advec_s_ups.f90 484 2010-02-05 07:36:54Z raasch $ |
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11 | ! |
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12 | ! 164 2008-05-15 08:46:15Z raasch |
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13 | ! Arguments removed from transpose routines |
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14 | ! |
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15 | ! February 2007 |
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16 | ! RCS Log replace by Id keyword, revision history cleaned up |
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17 | ! |
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18 | ! Revision 1.6 2004/04/30 08:02:43 raasch |
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19 | ! Enlarged transposition arrays introduced |
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20 | ! |
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21 | ! Revision 1.1 1999/02/05 08:44:47 raasch |
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22 | ! Initial revision |
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23 | ! |
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24 | ! |
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25 | ! Description: |
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26 | ! ------------ |
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27 | ! Upstream-Spline advection of scalar quantities (potential temperature, |
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28 | ! turbulent kinetic energy). The advection process is divided into three |
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29 | ! subsequent steps, one for each of the dimensions. The result is stored as a |
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30 | ! tendency in array tend. The computation of the cubic splines and the possible |
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31 | ! execution of the Long-filter require that all grid points of the relevant |
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32 | ! dimension are available. For model runs on more than one PE therefore both the |
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33 | ! advected and the advecting quantities are transposed accordingly. |
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34 | ! |
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35 | ! Actual arguments: |
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36 | ! s = scalar quantity to be advected (remains unchanged in this UP) |
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37 | ! var_char = character string specifying the quantity to be advected |
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38 | ! |
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39 | ! Internally used arrays: |
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40 | ! v_ad = scalar quantity to be advected, initialized = s at the beginning, |
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41 | ! also being used as temporary storage after each time step |
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42 | ! d = advecting component (u, v, or w) |
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43 | !------------------------------------------------------------------------------! |
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44 | |
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45 | USE advection |
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46 | USE arrays_3d |
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47 | USE cpulog |
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48 | USE grid_variables |
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49 | USE indices |
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50 | USE interfaces |
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51 | USE control_parameters |
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52 | |
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53 | IMPLICIT NONE |
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54 | |
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55 | CHARACTER (LEN=*) :: var_char |
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56 | |
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57 | INTEGER :: i, j, k |
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58 | REAL :: s(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) |
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59 | REAL, DIMENSION(:,:,:), ALLOCATABLE :: v_ad |
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60 | |
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61 | CALL cpu_log( log_point_s(16), 'advec_s_ups', 'start' ) |
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62 | |
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63 | #if defined( __parallel ) |
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64 | |
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65 | ! |
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66 | !-- Advection of the scalar in x-direction: |
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67 | !-- Store the scalar in temporary array v_ad (component to be advected, |
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68 | !-- boundaries are not used because they disturb the transposition) |
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69 | ALLOCATE( v_ad(nzb+1:nzta,nys:nyna,nxl:nxra) ) |
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70 | v_ad = 0.0 |
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71 | v_ad(nzb+1:nzt,nys:nyn,nxl:nxr) = s(nzb+1:nzt,nys:nyn,nxl:nxr) |
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72 | |
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73 | ! |
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74 | !-- Enlarge the size of tend, used as a working array for the transpositions |
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75 | IF ( nxra > nxr .OR. nyna > nyn .OR. nza > nz ) THEN |
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76 | DEALLOCATE( tend ) |
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77 | ALLOCATE( tend(1:nza,nys:nyna,nxl:nxra) ) |
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78 | ENDIF |
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79 | |
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80 | ! |
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81 | !-- Transpose the component to be advected: z --> x |
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82 | CALL transpose_zx( v_ad, tend, v_ad ) |
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83 | |
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84 | #else |
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85 | |
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86 | ! |
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87 | !-- Advection of the scalar in x-direction: |
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88 | !-- Store the scalar in temporary array v_ad (component to be advected) |
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89 | ALLOCATE( v_ad(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) ) |
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90 | v_ad(:,:,:) = s(:,:,:) |
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91 | |
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92 | #endif |
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93 | |
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94 | ! |
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95 | !-- Advecting component (u) must be averaged out on the scalar's grid |
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96 | DO i = nxl, nxr |
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97 | DO j = nys, nyn |
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98 | DO k = nzb+1, nzt |
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99 | d(k,j,i) = 0.5 * ( u(k,j,i) + u(k,j,i+1) ) - u_gtrans |
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100 | ENDDO |
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101 | ENDDO |
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102 | ENDDO |
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103 | |
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104 | #if defined( __parallel ) |
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105 | |
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106 | ! |
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107 | !-- Transpose the advecting componnet: z --> x |
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108 | CALL transpose_zx( d, tend, d ) |
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109 | |
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110 | #endif |
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111 | |
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112 | ! |
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113 | !-- Upstream-Spline advection of the scalar in x-direction |
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114 | CALL spline_x( v_ad, d, var_char ) |
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115 | |
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116 | ! |
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117 | !-- Advection of the scalar in y-direction: |
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118 | !-- advecting component (v) must be averaged out on the scalar's grid |
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119 | DO i = nxl, nxr |
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120 | DO j = nys, nyn |
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121 | DO k = nzb+1, nzt |
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122 | d(k,j,i) = 0.5 * ( v(k,j,i) + v(k,j+1,i) ) - v_gtrans |
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123 | ENDDO |
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124 | ENDDO |
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125 | ENDDO |
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126 | |
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127 | #if defined( __parallel ) |
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128 | |
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129 | ! |
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130 | !-- Transpose the advecting component: z --> y |
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131 | CALL transpose_zx( d, tend, d ) |
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132 | CALL transpose_xy( d, tend, d ) |
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133 | |
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134 | ! |
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135 | !-- Transpose the component to be advected: x --> y |
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136 | CALL transpose_xy( v_ad, tend, v_ad ) |
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137 | |
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138 | #endif |
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139 | |
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140 | ! |
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141 | !-- Upstream-Spline advection of the scalar in y-direction |
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142 | CALL spline_y( v_ad, d, var_char ) |
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143 | |
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144 | ! |
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145 | !-- Advection of the scalar in z-direction: |
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146 | !-- the advecting component (w) must be averaged out on the scalar's grid |
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147 | !-- (weighted for non-equidistant grid) |
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148 | d = 0.0 |
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149 | DO i = nxl, nxr |
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150 | DO j = nys, nyn |
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151 | DO k = nzb+1, nzt |
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152 | d(k,j,i) = ( w(k,j,i) * ( zu(k) - zw(k-1) ) + & |
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153 | w(k-1,j,i) * ( zw(k) - zu(k) ) ) * ddzw(k) |
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154 | ENDDO |
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155 | ENDDO |
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156 | ENDDO |
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157 | |
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158 | #if defined( __parallel ) |
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159 | |
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160 | ! |
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161 | !-- Transpose the component to be advected: y --> z (= y --> x + x --> z) |
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162 | CALL transpose_yx( v_ad, tend, v_ad ) |
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163 | CALL transpose_xz( v_ad, tend, v_ad ) |
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164 | |
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165 | ! |
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166 | !-- Resize tend to its normal size |
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167 | IF ( nxra > nxr .OR. nyna > nyn .OR. nza > nz ) THEN |
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168 | DEALLOCATE( tend ) |
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169 | ALLOCATE( tend(nzb:nzt+1,nys-1:nyn+1,nxl-1:nxr+1) ) |
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170 | ENDIF |
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171 | |
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172 | #endif |
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173 | |
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174 | ! |
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175 | !-- Upstream-Spline advection of the scalar in z-direction |
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176 | CALL spline_z( v_ad, d, dzu, spl_tri_zu, var_char ) |
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177 | |
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178 | ! |
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179 | !-- Compute the tendency term |
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180 | DO i = nxl, nxr |
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181 | DO j = nys, nyn |
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182 | DO k = nzb+1, nzt |
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183 | tend(k,j,i) = ( v_ad(k,j,i) - s(k,j,i) ) / dt_3d |
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184 | ENDDO |
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185 | ENDDO |
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186 | ENDDO |
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187 | |
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188 | DEALLOCATE( v_ad ) |
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189 | |
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190 | CALL cpu_log( log_point_s(16), 'advec_s_ups', 'stop' ) |
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191 | |
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192 | END SUBROUTINE advec_s_ups |
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