| 1 |
module lwvd_m |
| 2 |
|
| 3 |
IMPLICIT NONE |
| 4 |
|
| 5 |
contains |
| 6 |
|
| 7 |
SUBROUTINE lwvd(ktraer, pabcu, pdbdt, pga, pgb, pcntrb, pdisd, pdisu) |
| 8 |
USE dimens_m |
| 9 |
USE dimphy |
| 10 |
USE raddim |
| 11 |
USE raddimlw |
| 12 |
|
| 13 |
! ----------------------------------------------------------------------- |
| 14 |
! PURPOSE. |
| 15 |
! -------- |
| 16 |
! CARRIES OUT THE VERTICAL INTEGRATION ON THE DISTANT LAYERS |
| 17 |
|
| 18 |
! METHOD. |
| 19 |
! ------- |
| 20 |
|
| 21 |
! 1. PERFORMS THE VERTICAL INTEGRATION CORRESPONDING TO THE |
| 22 |
! CONTRIBUTIONS OF THE DISTANT LAYERS USING TRAPEZOIDAL RULE |
| 23 |
|
| 24 |
! REFERENCE. |
| 25 |
! ---------- |
| 26 |
|
| 27 |
! SEE RADIATION'S PART OF THE MODEL'S DOCUMENTATION AND |
| 28 |
! ECMWF RESEARCH DEPARTMENT DOCUMENTATION OF THE IFS |
| 29 |
|
| 30 |
! AUTHOR. |
| 31 |
! ------- |
| 32 |
! JEAN-JACQUES MORCRETTE *ECMWF* |
| 33 |
|
| 34 |
! MODIFICATIONS. |
| 35 |
! -------------- |
| 36 |
! ORIGINAL : 89-07-14 |
| 37 |
! ----------------------------------------------------------------------- |
| 38 |
! * ARGUMENTS: |
| 39 |
|
| 40 |
INTEGER ktraer |
| 41 |
|
| 42 |
DOUBLE PRECISION pabcu(kdlon, nua, 3*kflev+1) ! ABSORBER AMOUNTS |
| 43 |
DOUBLE PRECISION pdbdt(kdlon, ninter, kflev) ! LAYER PLANCK FUNCTION GRADIENT |
| 44 |
DOUBLE PRECISION pga(kdlon, 8, 2, kflev) ! PADE APPROXIMANTS |
| 45 |
DOUBLE PRECISION pgb(kdlon, 8, 2, kflev) ! PADE APPROXIMANTS |
| 46 |
|
| 47 |
DOUBLE PRECISION pcntrb(kdlon, kflev+1, kflev+1) ! ENERGY EXCHANGE MATRIX |
| 48 |
DOUBLE PRECISION pdisd(kdlon, kflev+1) ! CONTRIBUTION BY DISTANT LAYERS |
| 49 |
DOUBLE PRECISION pdisu(kdlon, kflev+1) ! CONTRIBUTION BY DISTANT LAYERS |
| 50 |
|
| 51 |
! * LOCAL VARIABLES: |
| 52 |
|
| 53 |
DOUBLE PRECISION zglayd(kdlon) |
| 54 |
DOUBLE PRECISION zglayu(kdlon) |
| 55 |
DOUBLE PRECISION ztt(kdlon, ntra) |
| 56 |
DOUBLE PRECISION ztt1(kdlon, ntra) |
| 57 |
DOUBLE PRECISION ztt2(kdlon, ntra) |
| 58 |
|
| 59 |
INTEGER jl, jk, ja, ikp1, ikn, ikd1, jkj, ikd2 |
| 60 |
INTEGER ikjp1, ikm1, ikj, jlk, iku1, ijkl, iku2 |
| 61 |
INTEGER ind1, ind2, ind3, ind4, itt |
| 62 |
DOUBLE PRECISION zww, zdzxdg, zdzxmg |
| 63 |
|
| 64 |
! * 1. INITIALIZATION |
| 65 |
! -------------- |
| 66 |
|
| 67 |
|
| 68 |
! * 1.1 INITIALIZE LAYER CONTRIBUTIONS |
| 69 |
! ------------------------------ |
| 70 |
|
| 71 |
|
| 72 |
DO jk = 1, kflev + 1 |
| 73 |
DO jl = 1, kdlon |
| 74 |
pdisd(jl, jk) = 0. |
| 75 |
pdisu(jl, jk) = 0. |
| 76 |
END DO |
| 77 |
END DO |
| 78 |
|
| 79 |
! * 1.2 INITIALIZE TRANSMISSION FUNCTIONS |
| 80 |
! --------------------------------- |
| 81 |
|
| 82 |
|
| 83 |
|
| 84 |
DO ja = 1, ntra |
| 85 |
DO jl = 1, kdlon |
| 86 |
ztt(jl, ja) = 1.0 |
| 87 |
ztt1(jl, ja) = 1.0 |
| 88 |
ztt2(jl, ja) = 1.0 |
| 89 |
END DO |
| 90 |
END DO |
| 91 |
|
| 92 |
! ------------------------------------------------------------------ |
| 93 |
|
| 94 |
! * 2. VERTICAL INTEGRATION |
| 95 |
! -------------------- |
| 96 |
|
| 97 |
|
| 98 |
ind1 = 0 |
| 99 |
ind3 = 0 |
| 100 |
ind4 = 1 |
| 101 |
ind2 = 1 |
| 102 |
|
| 103 |
|
| 104 |
! * 2.2 CONTRIBUTION FROM DISTANT LAYERS |
| 105 |
! --------------------------------- |
| 106 |
|
| 107 |
|
| 108 |
|
| 109 |
! * 2.2.1 DISTANT AND ABOVE LAYERS |
| 110 |
! ------------------------ |
| 111 |
|
| 112 |
|
| 113 |
|
| 114 |
|
| 115 |
! * 2.2.2 FIRST UPPER LEVEL |
| 116 |
! ----------------- |
| 117 |
|
| 118 |
|
| 119 |
DO jk = 1, kflev - 1 |
| 120 |
ikp1 = jk + 1 |
| 121 |
ikn = (jk-1)*ng1p1 + 1 |
| 122 |
ikd1 = jk*ng1p1 + 1 |
| 123 |
|
| 124 |
CALL lwttm(pga(1,1,1,jk), pgb(1,1,1,jk), pabcu(1,1,ikn), pabcu(1,1,ikd1), & |
| 125 |
ztt1) |
| 126 |
|
| 127 |
|
| 128 |
|
| 129 |
! * 2.2.3 HIGHER UP |
| 130 |
! --------- |
| 131 |
|
| 132 |
|
| 133 |
itt = 1 |
| 134 |
DO jkj = ikp1, kflev |
| 135 |
IF (itt==1) THEN |
| 136 |
itt = 2 |
| 137 |
ELSE |
| 138 |
itt = 1 |
| 139 |
END IF |
| 140 |
ikjp1 = jkj + 1 |
| 141 |
ikd2 = jkj*ng1p1 + 1 |
| 142 |
|
| 143 |
IF (itt==1) THEN |
| 144 |
CALL lwttm(pga(1,1,1,jkj), pgb(1,1,1,jkj), pabcu(1,1,ikn), & |
| 145 |
pabcu(1,1,ikd2), ztt1) |
| 146 |
ELSE |
| 147 |
CALL lwttm(pga(1,1,1,jkj), pgb(1,1,1,jkj), pabcu(1,1,ikn), & |
| 148 |
pabcu(1,1,ikd2), ztt2) |
| 149 |
END IF |
| 150 |
|
| 151 |
DO ja = 1, ktraer |
| 152 |
DO jl = 1, kdlon |
| 153 |
ztt(jl, ja) = (ztt1(jl,ja)+ztt2(jl,ja))*0.5 |
| 154 |
END DO |
| 155 |
END DO |
| 156 |
|
| 157 |
DO jl = 1, kdlon |
| 158 |
zww = pdbdt(jl, 1, jkj)*ztt(jl, 1)*ztt(jl, 10) + & |
| 159 |
pdbdt(jl, 2, jkj)*ztt(jl, 2)*ztt(jl, 7)*ztt(jl, 11) + & |
| 160 |
pdbdt(jl, 3, jkj)*ztt(jl, 4)*ztt(jl, 8)*ztt(jl, 12) + & |
| 161 |
pdbdt(jl, 4, jkj)*ztt(jl, 5)*ztt(jl, 9)*ztt(jl, 13) + & |
| 162 |
pdbdt(jl, 5, jkj)*ztt(jl, 3)*ztt(jl, 14) + & |
| 163 |
pdbdt(jl, 6, jkj)*ztt(jl, 6)*ztt(jl, 15) |
| 164 |
zglayd(jl) = zww |
| 165 |
zdzxdg = zglayd(jl) |
| 166 |
pdisd(jl, jk) = pdisd(jl, jk) + zdzxdg |
| 167 |
pcntrb(jl, jk, ikjp1) = zdzxdg |
| 168 |
END DO |
| 169 |
|
| 170 |
|
| 171 |
END DO |
| 172 |
END DO |
| 173 |
|
| 174 |
|
| 175 |
! * 2.2.4 DISTANT AND BELOW LAYERS |
| 176 |
! ------------------------ |
| 177 |
|
| 178 |
|
| 179 |
|
| 180 |
|
| 181 |
! * 2.2.5 FIRST LOWER LEVEL |
| 182 |
! ----------------- |
| 183 |
|
| 184 |
|
| 185 |
DO jk = 3, kflev + 1 |
| 186 |
ikn = (jk-1)*ng1p1 + 1 |
| 187 |
ikm1 = jk - 1 |
| 188 |
ikj = jk - 2 |
| 189 |
iku1 = ikj*ng1p1 + 1 |
| 190 |
|
| 191 |
|
| 192 |
CALL lwttm(pga(1,1,1,ikj), pgb(1,1,1,ikj), pabcu(1,1,iku1), & |
| 193 |
pabcu(1,1,ikn), ztt1) |
| 194 |
|
| 195 |
|
| 196 |
|
| 197 |
! * 2.2.6 DOWN BELOW |
| 198 |
! ---------- |
| 199 |
|
| 200 |
|
| 201 |
itt = 1 |
| 202 |
DO jlk = 1, ikj |
| 203 |
IF (itt==1) THEN |
| 204 |
itt = 2 |
| 205 |
ELSE |
| 206 |
itt = 1 |
| 207 |
END IF |
| 208 |
ijkl = ikm1 - jlk |
| 209 |
iku2 = (ijkl-1)*ng1p1 + 1 |
| 210 |
|
| 211 |
|
| 212 |
IF (itt==1) THEN |
| 213 |
CALL lwttm(pga(1,1,1,ijkl), pgb(1,1,1,ijkl), pabcu(1,1,iku2), & |
| 214 |
pabcu(1,1,ikn), ztt1) |
| 215 |
ELSE |
| 216 |
CALL lwttm(pga(1,1,1,ijkl), pgb(1,1,1,ijkl), pabcu(1,1,iku2), & |
| 217 |
pabcu(1,1,ikn), ztt2) |
| 218 |
END IF |
| 219 |
|
| 220 |
DO ja = 1, ktraer |
| 221 |
DO jl = 1, kdlon |
| 222 |
ztt(jl, ja) = (ztt1(jl,ja)+ztt2(jl,ja))*0.5 |
| 223 |
END DO |
| 224 |
END DO |
| 225 |
|
| 226 |
DO jl = 1, kdlon |
| 227 |
zww = pdbdt(jl, 1, ijkl)*ztt(jl, 1)*ztt(jl, 10) + & |
| 228 |
pdbdt(jl, 2, ijkl)*ztt(jl, 2)*ztt(jl, 7)*ztt(jl, 11) + & |
| 229 |
pdbdt(jl, 3, ijkl)*ztt(jl, 4)*ztt(jl, 8)*ztt(jl, 12) + & |
| 230 |
pdbdt(jl, 4, ijkl)*ztt(jl, 5)*ztt(jl, 9)*ztt(jl, 13) + & |
| 231 |
pdbdt(jl, 5, ijkl)*ztt(jl, 3)*ztt(jl, 14) + & |
| 232 |
pdbdt(jl, 6, ijkl)*ztt(jl, 6)*ztt(jl, 15) |
| 233 |
zglayu(jl) = zww |
| 234 |
zdzxmg = zglayu(jl) |
| 235 |
pdisu(jl, jk) = pdisu(jl, jk) + zdzxmg |
| 236 |
pcntrb(jl, jk, ijkl) = zdzxmg |
| 237 |
END DO |
| 238 |
|
| 239 |
|
| 240 |
END DO |
| 241 |
END DO |
| 242 |
|
| 243 |
RETURN |
| 244 |
END SUBROUTINE lwvd |
| 245 |
|
| 246 |
end module lwvd_m |
Parent Directory
| 
Revision Log