[1912] | 1 | MODULE gwstress_mod |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | |
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| 5 | CONTAINS |
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| 6 | |
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[38] | 7 | SUBROUTINE GWSTRESS |
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| 8 | * ( klon , klev |
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| 9 | * , KKCRIT, KSECT, KKHLIM, KTEST, KKCRITH, KCRIT, kkenvh |
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| 10 | * , kknu |
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| 11 | * , PRHO , PSTAB, PVPH , PVAR ,PVARor, psig |
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| 12 | * , PTFR , PTAU |
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| 13 | * ,pgeom1 , pgamma, pd1 , pd2 ,pdmod ,pnu ) |
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| 14 | C |
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| 15 | C**** *GWSTRESS* |
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| 16 | C |
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| 17 | C PURPOSE. |
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| 18 | C -------- |
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| 19 | C |
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| 20 | C** INTERFACE. |
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| 21 | C ---------- |
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| 22 | C CALL *GWSTRESS* FROM *GWDRAG* |
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| 23 | C |
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| 24 | C EXPLICIT ARGUMENTS : |
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| 25 | C -------------------- |
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| 26 | C ==== INPUTS === |
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| 27 | C ==== OUTPUTS === |
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| 28 | C |
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| 29 | C IMPLICIT ARGUMENTS : NONE |
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| 30 | C -------------------- |
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| 31 | C |
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| 32 | C METHOD. |
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| 33 | C ------- |
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| 34 | C |
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| 35 | C |
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| 36 | C EXTERNALS. |
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| 37 | C ---------- |
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| 38 | C |
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| 39 | C |
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| 40 | C REFERENCE. |
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| 41 | C ---------- |
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| 42 | C |
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| 43 | C SEE ECMWF RESEARCH DEPARTMENT DOCUMENTATION OF THE "I.F.S." |
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| 44 | C |
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| 45 | C AUTHOR. |
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| 46 | C ------- |
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| 47 | C |
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| 48 | C MODIFICATIONS. |
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| 49 | C -------------- |
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| 50 | C F. LOTT PUT THE NEW GWD ON IFS 22/11/93 |
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| 51 | C |
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| 52 | C----------------------------------------------------------------------- |
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[1047] | 53 | use dimradmars_mod, only: ndlo2 |
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[38] | 54 | implicit none |
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| 55 | integer klon,klev,kidia,kfdia |
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| 56 | |
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[1912] | 57 | include "yoegwd.h" |
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[38] | 58 | |
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| 59 | C----------------------------------------------------------------------- |
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| 60 | C |
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| 61 | C* 0.1 ARGUMENTS |
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| 62 | C --------- |
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| 63 | C |
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| 64 | INTEGER KKCRIT(NDLO2),KKCRITH(NDLO2),KCRIT(NDLO2),KSECT(NDLO2), |
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| 65 | * KKHLIM(NDLO2),KTEST(NDLO2),KKENVH(NDLO2),KKNU(NDLO2) |
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| 66 | C |
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| 67 | REAL PRHO(NDLO2,klev+1),PSTAB(NDLO2,klev+1),PTAU(NDLO2,klev+1), |
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| 68 | * PVPH(NDLO2,klev+1),PVAR(NDLO2,4),PTFR(NDLO2), |
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| 69 | * pgeom1(NDLO2,klev),PVARor(NDLO2) |
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| 70 | C |
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| 71 | real pd1(NDLO2),pd2(NDLO2),pnu(NDLO2),psig(NDLO2),pgamma(NDLO2) |
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| 72 | real pdmod(NDLO2) |
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| 73 | C |
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| 74 | C----------------------------------------------------------------------- |
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| 75 | C |
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| 76 | C* 0.2 LOCAL ARRAYS |
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| 77 | C ------------ |
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| 78 | integer jl |
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| 79 | real zblock,zvar,zeff |
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| 80 | logical lo |
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| 81 | |
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| 82 | C |
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| 83 | C----------------------------------------------------------------------- |
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| 84 | C |
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| 85 | C* 0.3 FUNCTIONS |
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| 86 | C --------- |
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| 87 | C ------------------------------------------------------------------ |
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| 88 | C |
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| 89 | C* 1. INITIALIZATION |
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| 90 | C -------------- |
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| 91 | |
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| 92 | |
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| 93 | kidia=1 |
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| 94 | kfdia=klon |
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| 95 | |
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| 96 | |
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| 97 | C |
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| 98 | 100 CONTINUE |
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| 99 | C |
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| 100 | C* 3.1 GRAVITY WAVE STRESS. |
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| 101 | C |
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| 102 | 300 CONTINUE |
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| 103 | C |
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| 104 | C |
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| 105 | DO 301 JL=kidia,kfdia |
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| 106 | IF(KTEST(JL).EQ.1) THEN |
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| 107 | |
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| 108 | C EFFECTIVE MOUNTAIN HEIGHT ABOVE THE BLOCKED FLOW |
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| 109 | |
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| 110 | c IF(KKENVH(JL).EQ.KLEV)THEN |
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| 111 | ZBLOCK=0.0 |
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| 112 | c ELSE |
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| 113 | c ZBLOCK=(PGEOM1(JL,KKENVH(JL))+PGEOM1(JL,KKENVH(JL)+1))/2./RG |
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| 114 | c ENDIF |
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| 115 | |
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| 116 | ZVAR=PVAROR(JL) |
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| 117 | ZEFF=AMAX1(0.,2.*ZVAR-ZBLOCK) |
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| 118 | |
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| 119 | PTAU(JL,KLEV+1)=PRHO(JL,KLEV+1)*GKDRAG*psig(jl)*ZEFF**2 |
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| 120 | * /4./ZVAR*PVPH(JL,KLEV+1)*pdmod(jl)*sqrt(pstab(jl,klev+1)) |
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| 121 | |
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| 122 | C TOO SMALL VALUE OF STRESS OR LOW LEVEL FLOW INCLUDE CRITICAL LEVEL |
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| 123 | C OR LOW LEVEL FLOW: GRAVITY WAVE STRESS NUL. |
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| 124 | |
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| 125 | LO=(PTAU(JL,KLEV+1).LT.GTSEC).OR.(KCRIT(JL).GE.KKNU(JL)) |
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| 126 | * .OR.(PVPH(JL,KLEV+1).LT.GVCRIT) |
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| 127 | c IF(LO) PTAU(JL,KLEV+1)=0.0 |
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| 128 | |
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| 129 | ELSE |
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| 130 | |
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| 131 | PTAU(JL,KLEV+1)=0.0 |
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| 132 | |
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| 133 | ENDIF |
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| 134 | |
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| 135 | 301 CONTINUE |
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| 136 | C |
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[1912] | 137 | |
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| 138 | END SUBROUTINE GWSTRESS |
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| 139 | |
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| 140 | END MODULE gwstress_mod |
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