| [2089] | 1 | SUBROUTINE LW & |
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| 2 | &( KIDIA, KFDIA , KLON , KLEV , KMODE & |
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| 3 | &, PCCO2, PCLDLD, PCLDLU & |
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| 4 | &, PDP , PDT0 , PEMIS , PEMIW & |
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| 5 | &, PPMB , PQOF , PTL & |
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| 6 | &, PAER , PTAVE , PVIEW , PWV & |
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| 7 | &, PCOLR, PCOLC , PEMIT , PFLUX , PFLUC & |
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| 8 | &) |
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| 9 | |
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| 10 | !**** *LW* - ORGANIZES THE LONGWAVE CALCULATIONS |
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| 11 | |
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| 12 | ! PURPOSE. |
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| 13 | ! -------- |
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| 14 | ! COMPUTES LONGWAVE FLUXES |
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| 15 | |
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| 16 | !** INTERFACE. |
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| 17 | ! ---------- |
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| 18 | |
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| 19 | ! *LW* IS CALLED FROM *RADLSW* |
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| 20 | |
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| 21 | ! EXPLICIT ARGUMENTS : |
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| 22 | ! -------------------- |
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| 23 | ! PAER : (KLON,6,KLEV) ; OPTICAL THICKNESS OF THE AEROSOLS |
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| 24 | ! PCCO2 : ; CONCENTRATION IN CO2 (PA/PA) |
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| 25 | ! PCLDLD : (KLON,KLEV) ; DOWNWARD EFFECTIVE CLOUD FRACTION |
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| 26 | ! PCLDLU : (KLON,KLEV) ; UPWARD EFFECTIVE CLOUD FRACTION |
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| 27 | ! PDP : (KLON,KLEV) ; LAYER PRESSURE THICKNESS |
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| 28 | ! PDT0 : (KLON) ; SURFACE TEMPERATURE DISCONTINUITY |
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| 29 | ! PEMIS : (KLON) ; SURFACE LW EMISSIVITY |
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| 30 | ! PEMIW : (KLON) ; SURFACE LW WINDOW EMISSIVITY |
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| 31 | ! PPMB : (KLON,KLEV+1) ; HALF LEVEL PRESSURE |
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| 32 | ! PQOF : (KLON,KLEV) ; CONCENTRATION IN OZONE (PA/PA) |
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| 33 | ! PTAVE : (KLON,KLEV) ; TEMPERATURE |
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| 34 | ! PTL : (KLON,KLEV+1) ; HALF LEVEL TEMPERATURE |
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| 35 | ! PVIEW : (KLON) ; COSECANT OF VIEWING ANGLE |
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| 36 | ! PWV : (KLON,KLEV) ; SPECIFIC HUMIDITY (PA/PA) |
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| 37 | ! ==== OUTPUTS === |
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| 38 | ! PCOLR(KLON,KLEV) ; LONG-WAVE TENDENCY |
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| 39 | ! PCOLC(KLON,KLEV) ; LONG-WAVE TENDENCY CLEAR SKY |
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| 40 | ! PEMIT(KLON) ; SURFACE TOTAL LW EMISSIVITY |
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| 41 | ! PFLUX(KLON,2,KLEV) ; RADIATIVE FLUXES : |
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| 42 | ! 1 ==> UPWARD FLUX TOTAL |
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| 43 | ! 2 ==> DOWNWARD FLUX TOTAL |
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| 44 | ! PFLUC(KLON,2,KLEV) ; RADIATIVE FLUXES CLEAR SKY: |
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| 45 | ! 1 ==> UPWARD FLUX TOTAL |
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| 46 | ! 2 ==> DOWNWARD FLUX TOTAL |
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| 47 | |
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| 48 | ! IMPLICIT ARGUMENTS : NONE |
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| 49 | ! -------------------- |
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| 50 | |
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| 51 | ! METHOD. |
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| 52 | ! ------- |
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| 53 | |
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| 54 | ! 1. COMPUTES THE PRESSURE AND TEMPERATURE WEIGHTED AMOUNTS OF |
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| 55 | ! ABSORBERS. |
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| 56 | ! 2. COMPUTES THE PLANCK FUNCTIONS ON THE INTERFACES AND THE |
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| 57 | ! GRADIENT OF PLANCK FUNCTIONS IN THE LAYERS. |
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| 58 | ! 3. PERFORMS THE VERTICAL INTEGRATION DISTINGUISHING THE CON- |
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| 59 | ! TRIBUTIONS OF THE ADJACENT AND DISTANT LAYERS AND THOSE FROM THE |
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| 60 | ! BOUNDARIES. |
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| 61 | ! 4. COMPUTES THE CLEAR-SKY DOWNWARD AND UPWARD EMISSIVITIES. |
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| 62 | ! 5. INTRODUCES THE EFFECTS OF THE CLOUDS ON THE FLUXES. |
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| 63 | |
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| 64 | ! EXTERNALS. |
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| 65 | ! ---------- |
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| 66 | |
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| 67 | ! *LWU*, *LWBV*, *LWC* |
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| 68 | |
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| 69 | ! REFERENCE. |
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| 70 | ! ---------- |
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| 71 | |
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| 72 | ! SEE RADIATION'S PART OF THE MODEL'S DOCUMENTATION AND |
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| 73 | ! ECMWF RESEARCH DEPARTMENT DOCUMENTATION OF THE IFS |
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| 74 | |
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| 75 | ! AUTHOR. |
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| 76 | ! ------- |
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| 77 | ! JEAN-JACQUES MORCRETTE *ECMWF* |
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| 78 | |
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| 79 | ! MODIFICATIONS. |
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| 80 | ! -------------- |
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| 81 | ! ORIGINAL : 89-07-14 |
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| 82 | ! 99-05-25 JJMorcrette Revised aerosols |
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| 83 | |
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| 84 | !----------------------------------------------------------------------- |
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| 85 | |
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| 86 | #include "tsmbkind.h" |
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| 87 | |
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| 88 | USE YOELW , ONLY : NUA |
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| 89 | USE YOERDU , ONLY : RCDAY |
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| 90 | |
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| 91 | |
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| 92 | IMPLICIT NONE |
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| 93 | |
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| 94 | |
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| 95 | ! DUMMY INTEGER SCALARS |
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| 96 | INTEGER_M :: KFDIA |
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| 97 | INTEGER_M :: KIDIA |
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| 98 | INTEGER_M :: KLEV |
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| 99 | INTEGER_M :: KLON |
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| 100 | INTEGER_M :: KMODE |
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| 101 | |
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| 102 | ! DUMMY REAL SCALARS |
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| 103 | REAL_B :: PCCO2 |
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| 104 | |
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| 105 | |
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| 106 | |
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| 107 | !----------------------------------------------------------------------- |
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| 108 | |
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| 109 | !* 0.1 ARGUMENTS |
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| 110 | ! --------- |
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| 111 | |
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| 112 | REAL_B :: PAER(KLON,6,KLEV)& |
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| 113 | &, PCLDLD(KLON,KLEV) , PCLDLU(KLON,KLEV)& |
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| 114 | &, PDP(KLON,KLEV) , PDT0(KLON) & |
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| 115 | &, PEMIS(KLON) , PEMIW(KLON)& |
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| 116 | &, PPMB(KLON,KLEV+1)& |
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| 117 | &, PQOF(KLON,KLEV) & |
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| 118 | &, PTL(KLON,KLEV+1) , PTAVE(KLON,KLEV) & |
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| 119 | &, PVIEW(KLON) , PWV(KLON,KLEV) |
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| 120 | |
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| 121 | REAL_B :: PCOLR(KLON,KLEV) , PCOLC(KLON,KLEV)& |
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| 122 | &, PEMIT(KLON) & |
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| 123 | &, PFLUX(KLON,2,KLEV+1), PFLUC(KLON,2,KLEV+1) |
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| 124 | |
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| 125 | !------------------------------------------------------------------------- |
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| 126 | |
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| 127 | !* 0.2 LOCAL ARRAYS |
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| 128 | ! ------------ |
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| 129 | REAL_B :: ZABCU(KLON,NUA,3*KLEV+1)& |
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| 130 | &, ZBINT(KLON,KLEV+1) , ZBSUI(KLON)& |
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| 131 | &, ZCNTRB(KLON,KLEV+1,KLEV+1) |
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| 132 | |
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| 133 | ! LOCAL INTEGER SCALARS |
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| 134 | INTEGER_M :: JK, JKL, JL |
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| 135 | |
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| 136 | ! LOCAL REAL SCALARS |
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| 137 | REAL_B :: ZDCNET, ZDFNET |
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| 138 | |
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| 139 | |
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| 140 | ! ------------------------------------------------------------------ |
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| 141 | |
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| 142 | !* 1. INITIALIZATION |
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| 143 | ! -------------- |
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| 144 | |
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| 145 | !100 CONTINUE |
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| 146 | |
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| 147 | ! ------------------------------------------------------------------ |
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| 148 | |
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| 149 | !* 1.1 COMPUTES ABSORBER AMOUNTS |
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| 150 | ! ------------------------- |
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| 151 | |
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| 152 | CALL LWU & |
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| 153 | &( KIDIA, KFDIA, KLON, KLEV & |
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| 154 | &, PAER , PCCO2, PDP , PPMB, PQOF , PTAVE, PVIEW, PWV & |
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| 155 | &, ZABCU & |
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| 156 | &) |
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| 157 | |
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| 158 | ! ------------------------------------------------------------------ |
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| 159 | |
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| 160 | !* 2. COMPUTES PLANCK FUNCTIONS |
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| 161 | ! ------------------------- |
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| 162 | ! PERFORMS THE VERTICAL INTEGRATION |
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| 163 | ! --------------------------------- |
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| 164 | |
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| 165 | CALL LWBV & |
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| 166 | &( KIDIA, KFDIA, KLON , KLEV , KMODE & |
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| 167 | &, PDT0 , PEMIS, PEMIW, PTL , PTAVE & |
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| 168 | &, PEMIT, PFLUC & |
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| 169 | &, ZABCU, ZBINT, ZBSUI, ZCNTRB & |
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| 170 | &) |
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| 171 | |
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| 172 | ! ------------------------------------------------------------------ |
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| 173 | |
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| 174 | !* 4. INTRODUCES THE EFFECTS OF CLOUDS |
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| 175 | ! -------------------------------- |
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| 176 | |
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| 177 | !print *,'Just before LWC' |
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| 178 | CALL LWC & |
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| 179 | &( KIDIA , KFDIA, KLON , KLEV & |
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| 180 | &, ZBINT , ZBSUI, PCLDLD, PCLDLU & |
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| 181 | &, ZCNTRB, PEMIT, PFLUC & |
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| 182 | &, PFLUX & |
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| 183 | &) |
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| 184 | |
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| 185 | DO JKL = 1 , KLEV |
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| 186 | JK = KLEV+1 - JKL |
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| 187 | DO JL = KIDIA,KFDIA |
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| 188 | ZDCNET = PFLUC(JL,1,JK+1) + PFLUC(JL,2,JK+1)& |
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| 189 | &-PFLUC(JL,1,JK ) - PFLUC(JL,2,JK ) |
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| 190 | PCOLC(JL,JK) = RCDAY * ZDCNET / PDP(JL,JKL) |
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| 191 | ZDFNET = PFLUX(JL,1,JK+1) + PFLUX(JL,2,JK+1)& |
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| 192 | &-PFLUX(JL,1,JK ) - PFLUX(JL,2,JK ) |
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| 193 | PCOLR(JL,JK) = RCDAY * ZDFNET / PDP(JL,JKL) |
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| 194 | ENDDO |
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| 195 | ENDDO |
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| 196 | |
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| 197 | ! ------------------------------------------------------------------ |
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| 198 | |
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| 199 | RETURN |
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| 200 | END SUBROUTINE LW |
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