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SUBROUTINE LWVN(KUAER,KTRAER |
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R , PABCU,PDBSL,PGA,PGB |
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S , PADJD,PADJU,PCNTRB,PDBDT) |
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use dimens_m |
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use dimphy |
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use raddim |
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use raddimlw |
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IMPLICIT none |
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C |
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C----------------------------------------------------------------------- |
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C PURPOSE. |
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C -------- |
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C CARRIES OUT THE VERTICAL INTEGRATION ON NEARBY LAYERS |
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C TO GIVE LONGWAVE FLUXES OR RADIANCES |
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C |
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C METHOD. |
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C ------- |
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C |
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C 1. PERFORMS THE VERTICAL INTEGRATION CORRESPONDING TO THE |
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C CONTRIBUTIONS OF THE ADJACENT LAYERS USING A GAUSSIAN QUADRATURE |
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C |
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C REFERENCE. |
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C ---------- |
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C |
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C SEE RADIATION'S PART OF THE MODEL'S DOCUMENTATION AND |
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C ECMWF RESEARCH DEPARTMENT DOCUMENTATION OF THE IFS |
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C |
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C AUTHOR. |
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C ------- |
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C JEAN-JACQUES MORCRETTE *ECMWF* |
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C |
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C MODIFICATIONS. |
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C -------------- |
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C ORIGINAL : 89-07-14 |
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C----------------------------------------------------------------------- |
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C |
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C* ARGUMENTS: |
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C |
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INTEGER KUAER,KTRAER |
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C |
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DOUBLE PRECISION PABCU(KDLON,NUA,3*KFLEV+1) ! ABSORBER AMOUNTS |
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DOUBLE PRECISION PDBSL(KDLON,Ninter,KFLEV*2) ! SUB-LAYER PLANCK FUNCTION GRADIENT |
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DOUBLE PRECISION PGA(KDLON,8,2,KFLEV) ! PADE APPROXIMANTS |
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DOUBLE PRECISION PGB(KDLON,8,2,KFLEV) ! PADE APPROXIMANTS |
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C |
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DOUBLE PRECISION PADJD(KDLON,KFLEV+1) ! CONTRIBUTION OF ADJACENT LAYERS |
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DOUBLE PRECISION PADJU(KDLON,KFLEV+1) ! CONTRIBUTION OF ADJACENT LAYERS |
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DOUBLE PRECISION PCNTRB(KDLON,KFLEV+1,KFLEV+1) ! CLEAR-SKY ENERGY EXCHANGE MATRIX |
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DOUBLE PRECISION PDBDT(KDLON,Ninter,KFLEV) ! LAYER PLANCK FUNCTION GRADIENT |
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C |
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C* LOCAL ARRAYS: |
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C |
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DOUBLE PRECISION ZGLAYD(KDLON) |
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DOUBLE PRECISION ZGLAYU(KDLON) |
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DOUBLE PRECISION ZTT(KDLON,NTRA) |
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DOUBLE PRECISION ZTT1(KDLON,NTRA) |
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DOUBLE PRECISION ZTT2(KDLON,NTRA) |
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DOUBLE PRECISION ZUU(KDLON,NUA) |
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C |
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INTEGER jk, jl, ja, im12, ind, inu, ixu, jg |
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INTEGER ixd, ibs, idd, imu, jk1, jk2, jnu |
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DOUBLE PRECISION zwtr |
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c |
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C* Data Block: |
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c |
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DOUBLE PRECISION WG1(2) |
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SAVE WG1 |
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DATA (WG1(jk),jk=1,2) /1.0, 1.0/ |
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C----------------------------------------------------------------------- |
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C |
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C* 1. INITIALIZATION |
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C -------------- |
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C |
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100 CONTINUE |
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C |
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C* 1.1 INITIALIZE LAYER CONTRIBUTIONS |
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C ------------------------------ |
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C |
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110 CONTINUE |
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C |
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DO 112 JK = 1 , KFLEV+1 |
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DO 111 JL = 1, KDLON |
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PADJD(JL,JK) = 0. |
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PADJU(JL,JK) = 0. |
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111 CONTINUE |
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112 CONTINUE |
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C |
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C* 1.2 INITIALIZE TRANSMISSION FUNCTIONS |
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C --------------------------------- |
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C |
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120 CONTINUE |
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C |
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DO 122 JA = 1 , NTRA |
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DO 121 JL = 1, KDLON |
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ZTT (JL,JA) = 1.0 |
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ZTT1(JL,JA) = 1.0 |
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ZTT2(JL,JA) = 1.0 |
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121 CONTINUE |
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122 CONTINUE |
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C |
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DO 124 JA = 1 , NUA |
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DO 123 JL = 1, KDLON |
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ZUU(JL,JA) = 0. |
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123 CONTINUE |
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124 CONTINUE |
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C |
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C ------------------------------------------------------------------ |
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C |
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C* 2. VERTICAL INTEGRATION |
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C -------------------- |
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C |
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200 CONTINUE |
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C |
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C |
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C* 2.1 CONTRIBUTION FROM ADJACENT LAYERS |
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C --------------------------------- |
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C |
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210 CONTINUE |
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C |
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DO 215 JK = 1 , KFLEV |
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C |
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C* 2.1.1 DOWNWARD LAYERS |
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C --------------- |
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C |
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2110 CONTINUE |
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C |
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IM12 = 2 * (JK - 1) |
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IND = (JK - 1) * NG1P1 + 1 |
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IXD = IND |
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INU = JK * NG1P1 + 1 |
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IXU = IND |
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C |
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DO 2111 JL = 1, KDLON |
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ZGLAYD(JL) = 0. |
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ZGLAYU(JL) = 0. |
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2111 CONTINUE |
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C |
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DO 213 JG = 1 , NG1 |
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IBS = IM12 + JG |
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IDD = IXD + JG |
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DO 2113 JA = 1 , KUAER |
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DO 2112 JL = 1, KDLON |
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ZUU(JL,JA) = PABCU(JL,JA,IND) - PABCU(JL,JA,IDD) |
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2112 CONTINUE |
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2113 CONTINUE |
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C |
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C |
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CALL LWTT(PGA(1,1,1,JK), PGB(1,1,1,JK), ZUU, ZTT) |
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C |
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DO 2114 JL = 1, KDLON |
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ZWTR=PDBSL(JL,1,IBS)*ZTT(JL,1) *ZTT(JL,10) |
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S +PDBSL(JL,2,IBS)*ZTT(JL,2)*ZTT(JL,7)*ZTT(JL,11) |
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S +PDBSL(JL,3,IBS)*ZTT(JL,4)*ZTT(JL,8)*ZTT(JL,12) |
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S +PDBSL(JL,4,IBS)*ZTT(JL,5)*ZTT(JL,9)*ZTT(JL,13) |
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S +PDBSL(JL,5,IBS)*ZTT(JL,3) *ZTT(JL,14) |
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S +PDBSL(JL,6,IBS)*ZTT(JL,6) *ZTT(JL,15) |
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ZGLAYD(JL)=ZGLAYD(JL)+ZWTR*WG1(JG) |
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2114 CONTINUE |
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C |
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C* 2.1.2 DOWNWARD LAYERS |
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C --------------- |
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C |
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2120 CONTINUE |
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C |
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IMU = IXU + JG |
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DO 2122 JA = 1 , KUAER |
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DO 2121 JL = 1, KDLON |
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ZUU(JL,JA) = PABCU(JL,JA,IMU) - PABCU(JL,JA,INU) |
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2121 CONTINUE |
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2122 CONTINUE |
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C |
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C |
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CALL LWTT(PGA(1,1,1,JK), PGB(1,1,1,JK), ZUU, ZTT) |
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C |
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DO 2123 JL = 1, KDLON |
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ZWTR=PDBSL(JL,1,IBS)*ZTT(JL,1) *ZTT(JL,10) |
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S +PDBSL(JL,2,IBS)*ZTT(JL,2)*ZTT(JL,7)*ZTT(JL,11) |
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S +PDBSL(JL,3,IBS)*ZTT(JL,4)*ZTT(JL,8)*ZTT(JL,12) |
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S +PDBSL(JL,4,IBS)*ZTT(JL,5)*ZTT(JL,9)*ZTT(JL,13) |
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S +PDBSL(JL,5,IBS)*ZTT(JL,3) *ZTT(JL,14) |
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S +PDBSL(JL,6,IBS)*ZTT(JL,6) *ZTT(JL,15) |
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ZGLAYU(JL)=ZGLAYU(JL)+ZWTR*WG1(JG) |
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2123 CONTINUE |
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C |
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213 CONTINUE |
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C |
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DO 214 JL = 1, KDLON |
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PADJD(JL,JK) = ZGLAYD(JL) |
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PCNTRB(JL,JK,JK+1) = ZGLAYD(JL) |
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PADJU(JL,JK+1) = ZGLAYU(JL) |
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PCNTRB(JL,JK+1,JK) = ZGLAYU(JL) |
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PCNTRB(JL,JK ,JK) = 0.0 |
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214 CONTINUE |
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C |
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215 CONTINUE |
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C |
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DO 218 JK = 1 , KFLEV |
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JK2 = 2 * JK |
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JK1 = JK2 - 1 |
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DO 217 JNU = 1 , Ninter |
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DO 216 JL = 1, KDLON |
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PDBDT(JL,JNU,JK) = PDBSL(JL,JNU,JK1) + PDBSL(JL,JNU,JK2) |
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216 CONTINUE |
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217 CONTINUE |
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218 CONTINUE |
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C |
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RETURN |
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C |
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END |
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