| 1 | SUBROUTINE GPPREH(KPROMA,KSTART,KPROF,KFLEV,PVAH,PVBH,PRESH) |
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| 2 | |
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| 3 | !**** *GPPREH* - Computes half and full level pressure |
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| 4 | |
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| 5 | ! Purpose. |
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| 6 | ! -------- |
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| 7 | ! Computes pressures at half and full model levels. |
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| 8 | |
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| 9 | !** Interface. |
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| 10 | ! ---------- |
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| 11 | ! *CALL* *GPPREH(KPROMA,KSTART,KPROF,KFLEV,PVAH,PVBH,PRESH) |
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| 12 | |
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| 13 | ! Explicit arguments : |
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| 14 | ! -------------------- |
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| 15 | ! KPROMA : dimensioning |
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| 16 | ! KSTART : start of work |
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| 17 | ! KPROF : depth of work |
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| 18 | ! KFLEV : vert. dimensioning |
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| 19 | ! PRESH(KPROMA,0:KFLEV) - HALF LEVEL PRESSURE |
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| 20 | ! PVAH(KFLEV),PVBH(KFLEV)- vertical coordinate |
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| 21 | ! Implicit arguments : NONE. |
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| 22 | ! -------------------- |
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| 23 | |
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| 24 | ! Method. |
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| 25 | ! ------- |
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| 26 | ! See documentation |
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| 27 | |
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| 28 | ! Externals. None. |
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| 29 | ! ---------- |
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| 30 | |
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| 31 | ! Reference. |
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| 32 | ! ---------- |
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| 33 | ! ECMWF Research Department documentation of the IFS |
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| 34 | ! Half level P: PHk = Ak + Bk * Ps |
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| 35 | |
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| 36 | ! Author. |
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| 37 | ! ------- |
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| 38 | ! Erik Andersson, Mats Hamrud and Philippe Courtier *ECMWF* |
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| 39 | |
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| 40 | ! Modifications. |
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| 41 | ! -------------- |
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| 42 | ! Original : 92-11-23 |
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| 43 | ! M.Hamrud 01-Oct-2003 CY28 Cleaning |
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| 44 | ! ------------------------------------------------------------------ |
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| 45 | |
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| 46 | USE PARKIND1 ,ONLY : JPIM ,JPRB |
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| 47 | USE YOMHOOK ,ONLY : LHOOK, DR_HOOK |
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| 48 | |
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| 49 | IMPLICIT NONE |
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| 50 | |
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| 51 | INTEGER(KIND=JPIM),INTENT(IN) :: KPROMA |
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| 52 | INTEGER(KIND=JPIM),INTENT(IN) :: KFLEV |
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| 53 | INTEGER(KIND=JPIM),INTENT(IN) :: KSTART |
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| 54 | INTEGER(KIND=JPIM),INTENT(IN) :: KPROF |
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| 55 | REAL(KIND=JPRB) ,INTENT(IN) :: PVAH(0:KFLEV) |
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| 56 | REAL(KIND=JPRB) ,INTENT(IN) :: PVBH(0:KFLEV) |
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| 57 | REAL(KIND=JPRB) ,INTENT(INOUT) :: PRESH(KPROMA,0:KFLEV) |
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| 58 | INTEGER(KIND=JPIM) :: JLEV, JLON |
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| 59 | REAL(KIND=JPRB) :: ZHOOK_HANDLE |
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| 60 | |
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| 61 | ! ------------------------------------------------------------------ |
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| 62 | |
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| 63 | !* 1. COMPUTES HALF LEVEL PRESSURES. |
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| 64 | ! ------------------------------ |
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| 65 | |
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| 66 | IF (LHOOK) CALL DR_HOOK('GPPREH',0,ZHOOK_HANDLE) |
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| 67 | DO JLEV=0,KFLEV-1 |
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| 68 | DO JLON=KSTART,KPROF |
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| 69 | PRESH(JLON,JLEV)=PVAH(JLEV)+PVBH(JLEV)*PRESH(JLON,KFLEV) |
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| 70 | ENDDO |
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| 71 | ENDDO |
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| 72 | |
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| 73 | ! ------------------------------------------------------------------ |
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| 74 | |
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| 75 | IF (LHOOK) CALL DR_HOOK('GPPREH',1,ZHOOK_HANDLE) |
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| 76 | END SUBROUTINE GPPREH |
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