[1989] | 1 | SUBROUTINE LWB & |
---|
| 2 | & ( KIDIA, KFDIA, KLON , KLEV , KMODE,& |
---|
| 3 | & PDT0 , PTAVE, PTL,& |
---|
| 4 | & PB , PBINT, PBSUR , PBTOP , PDBSL,& |
---|
| 5 | & PGA , PGB , PGASUR, PGBSUR, PGATOP, PGBTOP & |
---|
| 6 | & ) |
---|
| 7 | |
---|
| 8 | !**** *LWB* - COMPUTES BLACK-BODY FUNCTIONS FOR LONGWAVE CALCULATIONS |
---|
| 9 | |
---|
| 10 | ! PURPOSE. |
---|
| 11 | ! -------- |
---|
| 12 | ! COMPUTES PLANCK FUNCTIONS |
---|
| 13 | |
---|
| 14 | !** INTERFACE. |
---|
| 15 | ! ---------- |
---|
| 16 | |
---|
| 17 | ! EXPLICIT ARGUMENTS : |
---|
| 18 | ! -------------------- |
---|
| 19 | ! ==== INPUTS === |
---|
| 20 | ! PDT0 : (KLON) ; SURFACE TEMPERATURE DISCONTINUITY |
---|
| 21 | ! PTAVE : (KLON,KLEV) ; TEMPERATURE |
---|
| 22 | ! PTL : (KLON,KLEV+1) ; HALF LEVEL TEMPERATURE |
---|
| 23 | ! ==== OUTPUTS === |
---|
| 24 | ! PB : (KLON,NSIL,KLEV+1); SPECTRAL HALF LEVEL PLANCK FUNCTION |
---|
| 25 | ! PBINT : (KLON,KLEV+1) ; HALF LEVEL PLANCK FUNCTION |
---|
| 26 | ! PBSUR : (KLON,NSIL) ; SURFACE SPECTRAL PLANCK FUNCTION |
---|
| 27 | ! PBTOP : (KLON,NSIL) ; TOP SPECTRAL PLANCK FUNCTION |
---|
| 28 | ! PDBSL : (KLON,NSIL,KLEV*2); SUB-LAYER PLANCK FUNCTION GRADIENT |
---|
| 29 | ! PGA : (KLON,8,2,KLEV) ; dB/dT-weighted LAYER PADE APPROXIMANTS |
---|
| 30 | ! PGB : (KLON,8,2,KLEV) ; dB/dT-weighted LAYER PADE APPROXIMANTS |
---|
| 31 | ! PGASUR, PGBSUR (KLON,8,2) ; SURFACE PADE APPROXIMANTS |
---|
| 32 | ! PGATOP, PGBTOP (KLON,8,2) ; T.O.A. PADE APPROXIMANTS |
---|
| 33 | |
---|
| 34 | ! IMPLICIT ARGUMENTS : NONE |
---|
| 35 | ! -------------------- |
---|
| 36 | |
---|
| 37 | ! METHOD. |
---|
| 38 | ! ------- |
---|
| 39 | |
---|
| 40 | ! 1. COMPUTES THE PLANCK FUNCTION ON ALL LEVELS AND HALF LEVELS |
---|
| 41 | ! FROM A POLYNOMIAL DEVELOPMENT OF PLANCK FUNCTION |
---|
| 42 | |
---|
| 43 | ! EXTERNALS. |
---|
| 44 | ! ---------- |
---|
| 45 | |
---|
| 46 | ! NONE |
---|
| 47 | |
---|
| 48 | ! REFERENCE. |
---|
| 49 | ! ---------- |
---|
| 50 | |
---|
| 51 | ! SEE RADIATION'S PART OF THE MODEL'S DOCUMENTATION AND |
---|
| 52 | ! ECMWF RESEARCH DEPARTMENT DOCUMENTATION OF THE IFS " |
---|
| 53 | |
---|
| 54 | ! AUTHOR. |
---|
| 55 | ! ------- |
---|
| 56 | ! JEAN-JACQUES MORCRETTE *ECMWF* |
---|
| 57 | |
---|
| 58 | ! MODIFICATIONS. |
---|
| 59 | ! -------------- |
---|
| 60 | ! ORIGINAL : 89-07-14 |
---|
| 61 | ! MODIFIED : 99-06-14 D.SALMOND Optimisation |
---|
| 62 | ! M.Hamrud 01-Oct-2003 CY28 Cleaning |
---|
| 63 | |
---|
| 64 | !----------------------------------------------------------------------- |
---|
| 65 | |
---|
| 66 | USE PARKIND1 ,ONLY : JPIM ,JPRB |
---|
| 67 | USE YOMHOOK ,ONLY : LHOOK, DR_HOOK |
---|
| 68 | |
---|
| 69 | USE YOELW , ONLY : MXIXT ,NSIL ,NIPD ,PDGA ,& |
---|
| 70 | & PDGB ,TINTP ,TSTAND ,TSTP ,XP |
---|
| 71 | |
---|
| 72 | IMPLICIT NONE |
---|
| 73 | |
---|
| 74 | INTEGER(KIND=JPIM),INTENT(IN) :: KLON |
---|
| 75 | INTEGER(KIND=JPIM),INTENT(IN) :: KLEV |
---|
| 76 | INTEGER(KIND=JPIM),INTENT(IN) :: KIDIA |
---|
| 77 | INTEGER(KIND=JPIM),INTENT(IN) :: KFDIA |
---|
| 78 | INTEGER(KIND=JPIM),INTENT(IN) :: KMODE |
---|
| 79 | REAL(KIND=JPRB) ,INTENT(IN) :: PDT0(KLON) |
---|
| 80 | REAL(KIND=JPRB) ,INTENT(IN) :: PTAVE(KLON,KLEV) |
---|
| 81 | REAL(KIND=JPRB) ,INTENT(IN) :: PTL(KLON,KLEV+1) |
---|
| 82 | REAL(KIND=JPRB) ,INTENT(OUT) :: PB(KLON,NSIL,KLEV+1) |
---|
| 83 | REAL(KIND=JPRB) ,INTENT(OUT) :: PBINT(KLON,KLEV+1) |
---|
| 84 | REAL(KIND=JPRB) ,INTENT(OUT) :: PBSUR(KLON,NSIL) |
---|
| 85 | REAL(KIND=JPRB) ,INTENT(OUT) :: PBTOP(KLON,NSIL) |
---|
| 86 | REAL(KIND=JPRB) ,INTENT(OUT) :: PDBSL(KLON,NSIL,KLEV*2) |
---|
| 87 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGA(KLON,NIPD,2,KLEV) |
---|
| 88 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGB(KLON,NIPD,2,KLEV) |
---|
| 89 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGASUR(KLON,NIPD,2) |
---|
| 90 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGBSUR(KLON,NIPD,2) |
---|
| 91 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGATOP(KLON,NIPD,2) |
---|
| 92 | REAL(KIND=JPRB) ,INTENT(OUT) :: PGBTOP(KLON,NIPD,2) |
---|
| 93 | !----------------------------------------------------------------------- |
---|
| 94 | |
---|
| 95 | !* 0.1 ARGUMENTS |
---|
| 96 | ! --------- |
---|
| 97 | |
---|
| 98 | !------------------------------------------------------------------------- |
---|
| 99 | |
---|
| 100 | ! ------------ |
---|
| 101 | INTEGER(KIND=JPIM) :: INDB(KLON) , INDS(KLON) |
---|
| 102 | REAL(KIND=JPRB) :: ZBLAY(KLON,KLEV), ZBLEV(KLON,KLEV+1)& |
---|
| 103 | & , ZRES(KLON) , ZRES2(KLON)& |
---|
| 104 | & , ZTI(KLON) , ZTI2(KLON) |
---|
| 105 | |
---|
| 106 | INTEGER(KIND=JPIM) :: ILEV2, INDSU, INDT, INDTO, INDTP, INUE, INUS,& |
---|
| 107 | & IXTOX, IXTX, JF, JG, JK, JK1, JK2, JL, JNU |
---|
| 108 | |
---|
| 109 | REAL(KIND=JPRB) :: ZDST1, ZDSTO1, ZDSTOX, ZDSTX |
---|
| 110 | REAL(KIND=JPRB) :: ZHOOK_HANDLE |
---|
| 111 | |
---|
| 112 | ! ------------------------------------------------------------------ |
---|
| 113 | |
---|
| 114 | !* 1.0 PLANCK FUNCTIONS AND GRADIENTS |
---|
| 115 | ! ------------------------------ |
---|
| 116 | |
---|
[5160] | 117 | PRINT *,'dans LWB' |
---|
[1989] | 118 | IF (LHOOK) CALL DR_HOOK('LWB',0,ZHOOK_HANDLE) |
---|
| 119 | ILEV2=2*KLEV |
---|
| 120 | INUS=1 |
---|
| 121 | INUE=NSIL |
---|
| 122 | IF (KMODE == 2) THEN |
---|
| 123 | INUS=3 |
---|
| 124 | INUE=4 |
---|
| 125 | ENDIF |
---|
| 126 | |
---|
| 127 | DO JK = 1 , KLEV+1 |
---|
| 128 | DO JL = KIDIA,KFDIA |
---|
| 129 | PBINT(JL,JK) = 0.0_JPRB |
---|
| 130 | ENDDO |
---|
| 131 | ENDDO |
---|
| 132 | |
---|
| 133 | DO JNU=1,NSIL |
---|
| 134 | DO JL=KIDIA,KFDIA |
---|
| 135 | PBSUR(JL,JNU)=0.0_JPRB |
---|
| 136 | PBTOP(JL,JNU)=0.0_JPRB |
---|
| 137 | ENDDO |
---|
| 138 | DO JK=1,KLEV |
---|
| 139 | DO JL=KIDIA,KFDIA |
---|
| 140 | PB(JL,JNU,JK)=0.0_JPRB |
---|
| 141 | ENDDO |
---|
| 142 | ENDDO |
---|
| 143 | DO JK=1,ILEV2 |
---|
| 144 | DO JL=KIDIA,KFDIA |
---|
| 145 | PDBSL(JL,JNU,JK)=0.0_JPRB |
---|
| 146 | ENDDO |
---|
| 147 | ENDDO |
---|
| 148 | ENDDO |
---|
| 149 | |
---|
| 150 | DO JNU=INUS,INUE |
---|
| 151 | |
---|
| 152 | !* 1.1 LEVELS FROM SURFACE TO KLEV |
---|
| 153 | ! ---------------------------- |
---|
| 154 | |
---|
| 155 | DO JK = 1 , KLEV |
---|
| 156 | DO JL = KIDIA,KFDIA |
---|
| 157 | ZTI(JL)=(PTL(JL,JK)-TSTAND)/TSTAND |
---|
| 158 | ZRES(JL) = XP(1,JNU)+ZTI(JL)*(XP(2,JNU)+ZTI(JL)*(XP(3,JNU)& |
---|
| 159 | & +ZTI(JL)*(XP(4,JNU)+ZTI(JL)*(XP(5,JNU)+ZTI(JL)*(XP(6,JNU)& |
---|
| 160 | & ))))) |
---|
| 161 | PBINT(JL,JK)=PBINT(JL,JK)+ZRES(JL) |
---|
| 162 | PB(JL,JNU,JK)= ZRES(JL) |
---|
| 163 | ZBLEV(JL,JK) = ZRES(JL) |
---|
| 164 | |
---|
| 165 | ZTI2(JL)=(PTAVE(JL,JK)-TSTAND)/TSTAND |
---|
| 166 | ZRES2(JL)=XP(1,JNU)+ZTI2(JL)*(XP(2,JNU)+ZTI2(JL)*(XP(3,JNU)& |
---|
| 167 | & +ZTI2(JL)*(XP(4,JNU)+ZTI2(JL)*(XP(5,JNU)+ZTI2(JL)*(XP(6,& |
---|
| 168 | & JNU)& |
---|
| 169 | & ))))) |
---|
| 170 | ZBLAY(JL,JK) = ZRES2(JL) |
---|
| 171 | ENDDO |
---|
| 172 | ENDDO |
---|
| 173 | |
---|
| 174 | !* 1.2 TOP OF THE ATMOSPHERE AND SURFACE |
---|
| 175 | ! --------------------------------- |
---|
| 176 | |
---|
| 177 | DO JL = KIDIA,KFDIA |
---|
| 178 | ZTI(JL)=(PTL(JL,KLEV+1)-TSTAND)/TSTAND |
---|
| 179 | ZTI2(JL) = (PTL(JL,1) + PDT0(JL) - TSTAND) / TSTAND |
---|
| 180 | ZRES(JL) = XP(1,JNU)+ZTI(JL)*(XP(2,JNU)+ZTI(JL)*(XP(3,JNU)& |
---|
| 181 | & +ZTI(JL)*(XP(4,JNU)+ZTI(JL)*(XP(5,JNU)+ZTI(JL)*(XP(6,JNU)& |
---|
| 182 | & ))))) |
---|
| 183 | ZRES2(JL) = XP(1,JNU)+ZTI2(JL)*(XP(2,JNU)+ZTI2(JL)*(XP(3,JNU)& |
---|
| 184 | & +ZTI2(JL)*(XP(4,JNU)+ZTI2(JL)*(XP(5,JNU)+ZTI2(JL)*(XP(6,JNU)& |
---|
| 185 | & ))))) |
---|
| 186 | PBINT(JL,KLEV+1) = PBINT(JL,KLEV+1)+ZRES(JL) |
---|
| 187 | PB(JL,JNU,KLEV+1)= ZRES(JL) |
---|
| 188 | ZBLEV(JL,KLEV+1) = ZRES(JL) |
---|
| 189 | PBTOP(JL,JNU) = ZRES(JL) |
---|
| 190 | PBSUR(JL,JNU) = ZRES2(JL) |
---|
| 191 | ENDDO |
---|
| 192 | |
---|
| 193 | !* 1.3 GRADIENTS IN SUB-LAYERS |
---|
| 194 | ! ----------------------- |
---|
| 195 | |
---|
| 196 | DO JK = 1 , KLEV |
---|
| 197 | JK2 = 2 * JK |
---|
| 198 | JK1 = JK2 - 1 |
---|
| 199 | DO JL = KIDIA,KFDIA |
---|
| 200 | PDBSL(JL,JNU,JK1) = ZBLAY(JL,JK ) - ZBLEV(JL,JK) |
---|
| 201 | PDBSL(JL,JNU,JK2) = ZBLEV(JL,JK+1) - ZBLAY(JL,JK) |
---|
| 202 | ENDDO |
---|
| 203 | ENDDO |
---|
| 204 | |
---|
| 205 | ENDDO |
---|
| 206 | |
---|
| 207 | !* 2.0 CHOOSE THE RELEVANT SETS OF PADE APPROXIMANTS |
---|
| 208 | ! --------------------------------------------- |
---|
| 209 | |
---|
| 210 | DO JL=KIDIA,KFDIA |
---|
| 211 | ZDSTO1 = (PTL(JL,KLEV+1)-TINTP(1)) / TSTP |
---|
| 212 | IXTOX = MAX( 1, MIN( MXIXT, INT( ZDSTO1 + 1.0_JPRB ) ) ) |
---|
| 213 | ZDSTOX = (PTL(JL,KLEV+1)-TINTP(IXTOX))/TSTP |
---|
| 214 | IF (ZDSTOX < 0.5_JPRB) THEN |
---|
| 215 | INDTO=IXTOX |
---|
| 216 | ELSE |
---|
| 217 | INDTO=IXTOX+1 |
---|
| 218 | ENDIF |
---|
| 219 | INDB(JL)=INDTO |
---|
| 220 | ZDST1 = (PTL(JL,1)-TINTP(1)) / TSTP |
---|
| 221 | IXTX = MAX( 1, MIN( MXIXT, INT( ZDST1 + 1.0_JPRB ) ) ) |
---|
| 222 | ZDSTX = (PTL(JL,1)-TINTP(IXTX))/TSTP |
---|
| 223 | IF (ZDSTX < 0.5_JPRB) THEN |
---|
| 224 | INDT=IXTX |
---|
| 225 | ELSE |
---|
| 226 | INDT=IXTX+1 |
---|
| 227 | ENDIF |
---|
| 228 | INDS(JL)=INDT |
---|
| 229 | ENDDO |
---|
| 230 | |
---|
| 231 | DO JF=1,2 |
---|
| 232 | DO JG=1,NIPD |
---|
| 233 | DO JL=KIDIA,KFDIA |
---|
| 234 | INDSU=INDS(JL) |
---|
| 235 | PGASUR(JL,JG,JF)=PDGA(INDSU,2*JG-1,JF) |
---|
| 236 | PGBSUR(JL,JG,JF)=PDGB(INDSU,2*JG-1,JF) |
---|
| 237 | INDTP=INDB(JL) |
---|
| 238 | PGATOP(JL,JG,JF)=PDGA(INDTP,2*JG-1,JF) |
---|
| 239 | PGBTOP(JL,JG,JF)=PDGB(INDTP,2*JG-1,JF) |
---|
| 240 | ENDDO |
---|
| 241 | ENDDO |
---|
| 242 | ENDDO |
---|
| 243 | |
---|
| 244 | DO JK=1,KLEV |
---|
| 245 | DO JL=KIDIA,KFDIA |
---|
| 246 | ZDST1 = (PTAVE(JL,JK)-TINTP(1)) / TSTP |
---|
| 247 | IXTX = MAX( 1, MIN( MXIXT, INT( ZDST1 + 1.0_JPRB ) ) ) |
---|
| 248 | ZDSTX = (PTAVE(JL,JK)-TINTP(IXTX))/TSTP |
---|
| 249 | IF (ZDSTX < 0.5_JPRB) THEN |
---|
| 250 | INDT=IXTX |
---|
| 251 | ELSE |
---|
| 252 | INDT=IXTX+1 |
---|
| 253 | ENDIF |
---|
| 254 | INDB(JL)=INDT |
---|
| 255 | ENDDO |
---|
| 256 | |
---|
| 257 | DO JF=1,2 |
---|
| 258 | DO JL=KIDIA,KFDIA |
---|
| 259 | INDT=INDB(JL) |
---|
| 260 | DO JG=1,NIPD |
---|
| 261 | PGA(JL,JG,JF,JK)=PDGA(INDT,2*JG,JF) |
---|
| 262 | PGB(JL,JG,JF,JK)=PDGB(INDT,2*JG,JF) |
---|
| 263 | ENDDO |
---|
| 264 | ENDDO |
---|
| 265 | ENDDO |
---|
| 266 | |
---|
| 267 | ENDDO |
---|
| 268 | |
---|
| 269 | ! ------------------------------------------------------------------ |
---|
| 270 | |
---|
| 271 | IF (LHOOK) CALL DR_HOOK('LWB',1,ZHOOK_HANDLE) |
---|
| 272 | END SUBROUTINE LWB |
---|