1 | ! |
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2 | ! $Header$ |
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3 | ! |
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4 | MODULE climb_hq_mod |
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5 | ! |
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6 | ! Module to solve the verctical diffusion of "q" and "H"; |
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7 | ! specific humidity and potential energi. |
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8 | ! |
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9 | USE dimphy |
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10 | |
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11 | IMPLICIT NONE |
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12 | SAVE |
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13 | PRIVATE |
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14 | PUBLIC :: climb_hq_down, climb_hq_up |
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15 | |
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16 | REAL, DIMENSION(:,:), ALLOCATABLE :: gamaq, gamah |
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17 | !$OMP THREADPRIVATE(gamaq,gamah) |
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18 | REAL, DIMENSION(:,:), ALLOCATABLE :: Ccoef_Q, Dcoef_Q |
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19 | !$OMP THREADPRIVATE(Ccoef_Q, Dcoef_Q) |
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20 | REAL, DIMENSION(:,:), ALLOCATABLE :: Ccoef_H, Dcoef_H |
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21 | !$OMP THREADPRIVATE(Ccoef_H, Dcoef_H) |
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22 | REAL, DIMENSION(:,:), ALLOCATABLE :: Kcoefhq |
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23 | !$OMP THREADPRIVATE(Kcoefhq) |
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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 | SUBROUTINE climb_hq_down(knon, coefhq, paprs, pplay, & |
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30 | delp, temp, q, dtime, & |
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31 | petAcoef, peqAcoef, petBcoef, peqBcoef) |
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32 | |
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33 | INCLUDE "YOMCST.h" |
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34 | ! This routine calculates recursivly the coefficients C and D |
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35 | ! for the quantity X=[Q,H] in equation X(k) = C(k) + D(k)*X(k-1), where k is |
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36 | ! the index of the vertical layer. |
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37 | ! |
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38 | ! Input arguments |
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39 | !**************************************************************************************** |
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40 | INTEGER, INTENT(IN) :: knon |
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41 | REAL, DIMENSION(klon,klev), INTENT(IN) :: coefhq |
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42 | REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay |
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43 | REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs |
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44 | REAL, DIMENSION(klon,klev), INTENT(IN) :: temp, delp ! temperature |
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45 | REAL, DIMENSION(klon,klev), INTENT(IN) :: q |
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46 | REAL, INTENT(IN) :: dtime |
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47 | |
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48 | ! Output arguments |
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49 | !**************************************************************************************** |
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50 | REAL, DIMENSION(klon), INTENT(OUT) :: petAcoef |
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51 | REAL, DIMENSION(klon), INTENT(OUT) :: peqAcoef |
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52 | REAL, DIMENSION(klon), INTENT(OUT) :: petBcoef |
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53 | REAL, DIMENSION(klon), INTENT(OUT) :: peqBcoef |
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54 | |
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55 | ! Local variables |
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56 | !**************************************************************************************** |
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57 | REAL, DIMENSION(klon,klev) :: dels, local_H |
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58 | REAL, DIMENSION(klon) :: psref, delz, pkh |
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59 | INTEGER :: k, i, ierr |
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60 | |
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61 | ! Include |
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62 | !**************************************************************************************** |
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63 | INCLUDE "compbl.h" |
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64 | |
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65 | |
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66 | !**************************************************************************************** |
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67 | ! 1) |
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68 | ! Allocation |
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69 | ! |
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70 | !**************************************************************************************** |
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71 | |
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72 | ALLOCATE(Ccoef_Q(klon,klev), STAT=ierr) |
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73 | IF ( ierr /= 0 ) PRINT*,' pb in allloc Ccoef_Q, ierr=', ierr |
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74 | |
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75 | ALLOCATE(Dcoef_Q(klon,klev), STAT=ierr) |
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76 | IF ( ierr /= 0 ) PRINT*,' pb in allloc Dcoef_Q, ierr=', ierr |
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77 | |
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78 | ALLOCATE(Ccoef_H(klon,klev), STAT=ierr) |
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79 | IF ( ierr /= 0 ) PRINT*,' pb in allloc Ccoef_H, ierr=', ierr |
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80 | |
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81 | ALLOCATE(Dcoef_H(klon,klev), STAT=ierr) |
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82 | IF ( ierr /= 0 ) PRINT*,' pb in allloc Dcoef_H, ierr=', ierr |
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83 | |
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84 | ALLOCATE(Kcoefhq(klon,klev), STAT=ierr) |
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85 | IF ( ierr /= 0 ) PRINT*,' pb in allloc Kcoefhq, ierr=', ierr |
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86 | |
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87 | ALLOCATE(gamaq(1:klon,2:klev), STAT=ierr) |
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88 | IF ( ierr /= 0 ) PRINT*,' pb in allloc gamaq, ierr=', ierr |
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89 | |
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90 | ALLOCATE(gamah(1:klon,2:klev), STAT=ierr) |
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91 | IF ( ierr /= 0 ) PRINT*,' pb in allloc gamah, ierr=', ierr |
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92 | |
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93 | |
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94 | !**************************************************************************************** |
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95 | ! 2) |
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96 | ! Definition of the coeficient K |
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97 | ! |
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98 | !**************************************************************************************** |
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99 | Kcoefhq(:,:) = 0.0 |
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100 | DO k = 2, klev |
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101 | DO i = 1, knon |
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102 | Kcoefhq(i,k) = & |
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103 | coefhq(i,k)*RG /(pplay(i,k-1)-pplay(i,k)) & |
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104 | *(paprs(i,k)*2/(temp(i,k)+temp(i,k-1))/RD)**2 |
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105 | Kcoefhq(i,k) = Kcoefhq(i,k) * dtime*RG |
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106 | ENDDO |
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107 | ENDDO |
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108 | |
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109 | !**************************************************************************************** |
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110 | ! 3) |
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111 | ! Calculation of gama for "Q" and "H" |
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112 | ! |
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113 | !**************************************************************************************** |
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114 | ! surface pressure is used as reference |
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115 | psref(:) = paprs(:,1) |
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116 | |
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117 | ! definition of start value for gama |
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118 | IF (iflag_pbl == 1) THEN |
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119 | gamaq(:,:) = 0.0 |
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120 | gamah(:,:) = -1.0e-03 |
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121 | gamah(:,2) = -2.5e-03 |
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122 | ELSE |
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123 | gamaq(:,:) = 0.0 |
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124 | gamah(:,:) = 0.0 |
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125 | ENDIF |
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126 | |
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127 | ! calculation of gama |
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128 | DO k = 2, klev |
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129 | DO i = 1, knon |
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130 | delz(i) = RD * (temp(i,k-1)+temp(i,k)) / & |
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131 | 2.0 / RG / paprs(i,k) * (pplay(i,k-1)-pplay(i,k)) |
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132 | pkh(i) = (psref(i)/paprs(i,k))**RKAPPA |
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133 | |
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134 | gamaq(i,k) = gamaq(i,k) * delz(i) |
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135 | gamah(i,k) = gamah(i,k) * delz(i) * RCPD * pkh(i) |
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136 | ENDDO |
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137 | ENDDO |
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138 | |
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139 | !**************************************************************************************** |
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140 | ! 4) |
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141 | ! Calculte the coefficients C and D for specific humidity, q |
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142 | ! |
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143 | !**************************************************************************************** |
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144 | dels(:,:) = delp(:,:) |
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145 | |
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146 | CALL calc_coef(knon, Kcoefhq(:,:), gamaq(:,:), dels(:,:), q(:,:), & |
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147 | Ccoef_Q(:,:), Dcoef_Q(:,:)) |
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148 | |
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149 | !**************************************************************************************** |
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150 | ! 5) |
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151 | ! Calculte the coefficients C and D for potentiel entalpie, H |
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152 | ! |
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153 | !**************************************************************************************** |
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154 | dels(:,:) = 0.0 |
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155 | local_H(:,:) = 0.0 |
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156 | |
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157 | DO k=1,klev |
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158 | DO i = 1, knon |
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159 | dels(i,k) = (pplay(i,k)/psref(i))**RKAPPA * delp(i,k) |
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160 | local_H(i,k) = RCPD * temp(i,k) * & |
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161 | (psref(i)/pplay(i,k))**RKAPPA |
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162 | ENDDO |
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163 | ENDDO |
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164 | |
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165 | |
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166 | CALL calc_coef(knon, Kcoefhq(:,:), gamah(:,:), dels(:,:), local_H(:,:), & |
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167 | Ccoef_H(:,:), Dcoef_H(:,:)) |
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168 | |
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169 | !**************************************************************************************** |
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170 | ! 6) |
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171 | ! Return the first layer in output variables |
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172 | ! |
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173 | !**************************************************************************************** |
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174 | petAcoef(1:knon) = Ccoef_H(1:knon,1) |
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175 | peqAcoef(1:knon) = Ccoef_Q(1:knon,1) |
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176 | petBcoef(1:knon) = Dcoef_H(1:knon,1) |
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177 | peqBcoef(1:knon) = Dcoef_Q(1:knon,1) |
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178 | |
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179 | END SUBROUTINE climb_hq_down |
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180 | ! |
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181 | !**************************************************************************************** |
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182 | ! |
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183 | SUBROUTINE calc_coef(knon, Kcoef, gama, dels, X, Ccoef, Dcoef) |
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184 | ! |
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185 | ! Calculate the coefficients C and D in : X(k) = C(k) + D(k)*X(k-1) |
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186 | ! where X is H or Q, and k the vertical level k=1,klev |
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187 | ! |
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188 | INCLUDE "YOMCST.h" |
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189 | ! Input arguments |
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190 | !**************************************************************************************** |
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191 | INTEGER, INTENT(IN) :: knon |
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192 | REAL, DIMENSION(klon,klev), INTENT(IN) :: Kcoef, dels |
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193 | REAL, DIMENSION(klon,klev), INTENT(IN) :: X |
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194 | REAL, DIMENSION(klon,2:klev), INTENT(IN) :: gama |
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195 | |
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196 | ! Output arguments |
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197 | !**************************************************************************************** |
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198 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: Ccoef |
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199 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: Dcoef |
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200 | |
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201 | ! Local variables |
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202 | !**************************************************************************************** |
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203 | INTEGER :: k, i |
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204 | REAL :: buf |
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205 | |
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206 | !**************************************************************************************** |
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207 | ! Niveau au sommet, k=klev |
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208 | ! |
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209 | !**************************************************************************************** |
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210 | Ccoef(:,:) = 0.0 |
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211 | Dcoef(:,:) = 0.0 |
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212 | |
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213 | DO i = 1, knon |
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214 | buf = dels(i,klev) + Kcoef(i,klev) |
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215 | |
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216 | Ccoef(i,klev) = (X(i,klev)*dels(i,klev) - Kcoef(i,klev)*gama(i,klev))/buf |
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217 | Dcoef(i,klev) = Kcoef(i,klev)/buf |
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218 | END DO |
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219 | |
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220 | |
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221 | !**************************************************************************************** |
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222 | ! Niveau (klev-1) <= k <= 2 |
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223 | ! |
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224 | !**************************************************************************************** |
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225 | |
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226 | DO k=(klev-1),2,-1 |
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227 | DO i = 1, knon |
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228 | buf = dels(i,k) + Kcoef(i,k) + Kcoef(i,k+1)*(1.-Dcoef(i,k+1)) |
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229 | Ccoef(i,k) = (X(i,k)*dels(i,k) + Kcoef(i,k+1)*Ccoef(i,k+1) + & |
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230 | Kcoef(i,k+1)*gama(i,k+1) - Kcoef(i,k)*gama(i,k))/buf |
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231 | Dcoef(i,k) = Kcoef(i,k)/buf |
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232 | END DO |
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233 | END DO |
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234 | |
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235 | !**************************************************************************************** |
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236 | ! Niveau k=1 |
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237 | ! |
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238 | !**************************************************************************************** |
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239 | |
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240 | DO i = 1, knon |
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241 | buf = dels(i,1) + Kcoef(i,2)*(1.-Dcoef(i,2)) |
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242 | Ccoef(i,1) = (X(i,1)*dels(i,1) + Kcoef(i,2)*(gama(i,2)+Ccoef(i,2)))/buf |
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243 | Dcoef(i,1) = -1. * RG / buf |
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244 | END DO |
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245 | |
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246 | END SUBROUTINE calc_coef |
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247 | ! |
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248 | !**************************************************************************************** |
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249 | ! |
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250 | SUBROUTINE climb_hq_up(knon, dtime, t_old, q_old, & |
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251 | flx_q1, flx_t1, paprs, pplay, & |
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252 | flux_q, flux_h, d_q, d_t) |
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253 | ! |
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254 | ! This routine calculates the flux and tendency of the specific humidity q and |
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255 | ! the potential engergi H. |
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256 | ! The quantities q and H are calculated according to |
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257 | ! X(k) = C(k) + D(k)*X(k-1) for X=[q,H], where the coefficients |
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258 | ! C and D are known from before and k is index of the vertical layer. |
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259 | ! |
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260 | INCLUDE "YOMCST.h" |
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261 | ! Input arguments |
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262 | !**************************************************************************************** |
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263 | INTEGER, INTENT(IN) :: knon |
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264 | REAL, INTENT(IN) :: dtime |
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265 | REAL, DIMENSION(klon,klev), INTENT(IN) :: t_old, q_old |
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266 | REAL, DIMENSION(klon), INTENT(IN) :: flx_q1, flx_t1 |
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267 | REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs |
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268 | REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay |
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269 | |
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270 | ! Output arguments |
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271 | !**************************************************************************************** |
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272 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: flux_q, flux_h, d_q, d_t |
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273 | |
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274 | ! Local variables |
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275 | !**************************************************************************************** |
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276 | REAL, DIMENSION(klon,klev) :: zx_pkh, zx_pkf |
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277 | REAL, DIMENSION(klon,klev) :: h_new, q_new |
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278 | REAL, DIMENSION(klon) :: psref |
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279 | INTEGER :: k, i, ierr |
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280 | |
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281 | !**************************************************************************************** |
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282 | ! 1) |
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283 | ! Definition of some variables |
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284 | ! |
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285 | !**************************************************************************************** |
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286 | flux_q(:,:) = 0.0 |
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287 | flux_h(:,:) = 0.0 |
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288 | d_q(:,:) = 0.0 |
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289 | d_t(:,:) = 0.0 |
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290 | |
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291 | psref(1:knon) = paprs(1:knon,1) |
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292 | |
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293 | DO k = 1, klev |
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294 | DO i = 1, knon |
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295 | zx_pkh(i,k) = (psref(i)/paprs(i,k))**RKAPPA |
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296 | zx_pkf(i,k) = (psref(i)/pplay(i,k))**RKAPPA |
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297 | END DO |
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298 | END DO |
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299 | !**************************************************************************************** |
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300 | ! 2) |
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301 | ! Calculation of Q and H |
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302 | ! |
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303 | !**************************************************************************************** |
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304 | |
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305 | !- First layer |
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306 | q_new(1:knon,1) = Ccoef_Q(1:knon,1) + Dcoef_Q(1:knon,1)*flx_q1(1:knon)*dtime |
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307 | h_new(1:knon,1) = Ccoef_H(1:knon,1) + Dcoef_H(1:knon,1)*flx_t1(1:knon)*dtime |
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308 | |
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309 | !- All the rest layers |
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310 | DO k = 2, klev |
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311 | DO i = 1, knon |
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312 | q_new(i,k) = Ccoef_Q(i,k) + Dcoef_Q(i,k)*q_new(i,k-1) |
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313 | h_new(i,k) = Ccoef_H(i,k) + Dcoef_H(i,k)*h_new(i,k-1) |
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314 | END DO |
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315 | END DO |
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316 | !**************************************************************************************** |
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317 | ! 3) |
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318 | ! Calculation of the flux for Q and H |
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319 | ! |
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320 | !**************************************************************************************** |
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321 | |
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322 | !- The flux at first layer, k=1 |
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323 | flux_q(1:knon,1)=flx_q1(1:knon) |
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324 | flux_h(1:knon,1)=flx_t1(1:knon) |
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325 | |
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326 | !- The flux at all layers above surface |
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327 | DO k = 2, klev |
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328 | DO i = 1, knon |
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329 | flux_q(i,k) = (Kcoefhq(i,k)/RG/dtime) * & |
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330 | (q_new(i,k)-q_new(i,k-1)+gamaq(i,k)) |
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331 | |
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332 | flux_h(i,k) = (Kcoefhq(i,k)/RG/dtime) * & |
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333 | (h_new(i,k)-h_new(i,k-1)+gamah(i,k)) / & |
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334 | zx_pkh(i,k) |
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335 | END DO |
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336 | END DO |
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337 | |
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338 | !**************************************************************************************** |
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339 | ! 4) |
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340 | ! Calculation of tendency for Q and H |
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341 | ! |
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342 | !**************************************************************************************** |
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343 | |
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344 | DO k = 1, klev |
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345 | DO i = 1, knon |
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346 | d_t(i,k) = h_new(i,k)/zx_pkf(i,k)/RCPD - t_old(i,k) |
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347 | d_q(i,k) = q_new(i,k) - q_old(i,k) |
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348 | END DO |
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349 | END DO |
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350 | |
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351 | !**************************************************************************************** |
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352 | ! Some deallocations |
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353 | ! |
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354 | !**************************************************************************************** |
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355 | DEALLOCATE(Ccoef_Q, Dcoef_Q, Ccoef_H, Dcoef_H,stat=ierr) |
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356 | IF ( ierr /= 0 ) PRINT*,' pb in dealllocate Ccoef_Q, Dcoef_Q, Ccoef_H, Dcoef_H, ierr=', ierr |
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357 | DEALLOCATE(gamaq, gamah,stat=ierr) |
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358 | IF ( ierr /= 0 ) PRINT*,' pb in dealllocate gamaq, gamah, ierr=', ierr |
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359 | DEALLOCATE(Kcoefhq,stat=ierr) |
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360 | IF ( ierr /= 0 ) PRINT*,' pb in dealllocate Kcoefhq, ierr=', ierr |
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361 | |
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362 | END SUBROUTINE climb_hq_up |
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363 | ! |
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364 | !**************************************************************************************** |
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365 | ! |
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366 | END MODULE climb_hq_mod |
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367 | |
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368 | |
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369 | |
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370 | |
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371 | |
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