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module sw_m |
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IMPLICIT none |
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|
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contains |
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SUBROUTINE SW(PSCT, PRMU0, PFRAC, PPMB, PDP, PPSOL, PALBD, PALBP, PTAVE, & |
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PWV, PQS, POZON, PCLDSW, PTAU, POMEGA, PCG, PHEAT, PHEAT0, PALBPLA, & |
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PTOPSW, PSOLSW, PTOPSW0, PSOLSW0, ZFSUP, ZFSDN, ZFSUP0, ZFSDN0, & |
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PTOPSWAD, PSOLSWAD, PTOPSWAI, PSOLSWAI, ok_ade) |
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|
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! Purpose. |
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! This routine computes the shortwave radiation fluxes in two |
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! spectral intervals following Fouquart and Bonnel (1980). |
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|
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! Method. |
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! 1. Computes absorber amounts (swu) |
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! 2. Computes fluxes in 1st spectral interval (SW1S) |
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! 3. Computes fluxes in 2nd spectral interval (SW2S) |
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|
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! Reference. |
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! See radiation part of the ECMWF research department |
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! documentation, and Fouquart and Bonnel (1980) |
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|
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! Author. |
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! Jean-Jacques Morcrette *ecmwf* |
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|
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! Modifications. |
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! Original: 89-07-14 |
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! 95-01-01 J.-J. Morcrette direct/diffuse albedo |
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! 03-11-27 J. Quaas Introduce aerosol forcings (based on Boucher) |
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|
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USE raddim, ONLY: kdlon, kflev |
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USE suphec_m, ONLY: rcpd, rday, rg |
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use sw1s_m, only: sw1s |
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use sw2s_m, only: sw2s |
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|
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! ARGUMENTS: |
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|
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DOUBLE PRECISION PSCT ! constante solaire (valeur conseillee: 1370) |
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DOUBLE PRECISION PRMU0(KDLON) ! COSINE OF ZENITHAL ANGLE |
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DOUBLE PRECISION PFRAC(KDLON) ! fraction de la journee |
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DOUBLE PRECISION PPMB(KDLON, KFLEV+1) ! HALF-LEVEL PRESSURE (MB) |
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DOUBLE PRECISION PDP(KDLON, KFLEV) ! LAYER THICKNESS (PA) |
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DOUBLE PRECISION PPSOL(KDLON) ! SURFACE PRESSURE (PA) |
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DOUBLE PRECISION PALBD(KDLON, 2) ! albedo du sol (lumiere diffuse) |
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DOUBLE PRECISION PALBP(KDLON, 2) ! albedo du sol (lumiere parallele) |
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DOUBLE PRECISION PTAVE(KDLON, KFLEV) ! LAYER TEMPERATURE (K) |
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DOUBLE PRECISION PWV(KDLON, KFLEV) ! SPECIFIC HUMIDITY (KG/KG) |
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DOUBLE PRECISION PQS(KDLON, KFLEV) ! SATURATED WATER VAPOUR (KG/KG) |
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DOUBLE PRECISION POZON(KDLON, KFLEV) ! OZONE CONCENTRATION (KG/KG) |
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DOUBLE PRECISION PCLDSW(KDLON, KFLEV) ! CLOUD FRACTION |
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DOUBLE PRECISION PTAU(KDLON, 2, KFLEV) ! CLOUD OPTICAL THICKNESS |
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DOUBLE PRECISION POMEGA(KDLON, 2, KFLEV) ! SINGLE SCATTERING ALBEDO |
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DOUBLE PRECISION PCG(KDLON, 2, KFLEV) ! ASYMETRY FACTOR |
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DOUBLE PRECISION PHEAT(KDLON, KFLEV) ! SHORTWAVE HEATING (K/DAY) |
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DOUBLE PRECISION PHEAT0(KDLON, KFLEV)! SHORTWAVE HEATING (K/DAY) clear-sky |
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DOUBLE PRECISION PALBPLA(KDLON) ! PLANETARY ALBEDO |
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DOUBLE PRECISION PTOPSW(KDLON) ! SHORTWAVE FLUX AT T.O.A. |
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DOUBLE PRECISION PSOLSW(KDLON) ! SHORTWAVE FLUX AT SURFACE |
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DOUBLE PRECISION PTOPSW0(KDLON) ! SHORTWAVE FLUX AT T.O.A. (CLEAR-SKY) |
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DOUBLE PRECISION PSOLSW0(KDLON) ! SHORTWAVE FLUX AT SURFACE (CLEAR-SKY) |
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DOUBLE PRECISION ZFSUP(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFSDN(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFSUP0(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFSDN0(KDLON, KFLEV+1) |
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|
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DOUBLE PRECISION, intent(out):: PTOPSWAD(KDLON) |
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! (diagnosed aerosol forcing)SHORTWAVE FLUX AT T.O.A.(+AEROSOL DIR) |
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|
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DOUBLE PRECISION, intent(out):: PSOLSWAD(KDLON) |
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! (diagnosed aerosol forcing)SHORTWAVE FLUX AT SURFACE(+AEROSOL DIR) |
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|
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DOUBLE PRECISION, intent(out):: PTOPSWAI(KDLON) |
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! (diagnosed aerosol forcing)SHORTWAVE FLUX AT T.O.A.(+AEROSOL IND) |
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|
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DOUBLE PRECISION, intent(out):: PSOLSWAI(KDLON) |
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! (diagnosed aerosol forcing)SHORTWAVE FLUX AT SURFACE(+AEROSOL IND) |
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|
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logical, intent(in):: ok_ade ! use aerosol forcings or not? |
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|
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! Local: |
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|
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DOUBLE PRECISION ZOZ(KDLON, KFLEV) |
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DOUBLE PRECISION ZAKI(KDLON, 2) |
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DOUBLE PRECISION ZCLD(KDLON, KFLEV) |
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DOUBLE PRECISION ZCLEAR(KDLON) |
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DOUBLE PRECISION ZDSIG(KDLON, KFLEV) |
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DOUBLE PRECISION ZFACT(KDLON) |
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DOUBLE PRECISION ZFD(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFDOWN(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFU(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZFUP(KDLON, KFLEV+1) |
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DOUBLE PRECISION ZRMU(KDLON) |
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DOUBLE PRECISION ZSEC(KDLON) |
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DOUBLE PRECISION ZUD(KDLON, 5, KFLEV+1) |
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DOUBLE PRECISION ZCLDSW0(KDLON, KFLEV) |
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|
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INTEGER inu, jl, jk, i, k, kpl1 |
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|
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INTEGER, PARAMETER:: swpas = 1 ! Every swpas steps, sw is calculated |
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|
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INTEGER:: itapsw = 0 |
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LOGICAL:: appel1er = .TRUE. |
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!jq-Introduced for aerosol forcings |
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|
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!jq - Fluxes including aerosol effects |
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DOUBLE PRECISION, save:: ZFSUPAD(KDLON, KFLEV+1) |
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DOUBLE PRECISION, save:: ZFSDNAD(KDLON, KFLEV+1) |
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DOUBLE PRECISION, save:: ZFSUPAI(KDLON, KFLEV+1) |
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DOUBLE PRECISION, save:: ZFSDNAI(KDLON, KFLEV+1) |
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|
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logical:: initialized = .false. |
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REAL, PARAMETER :: dobson_u = 2.1415E-05 ! Dobson unit, in kg m-2 |
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|
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!------------------------------------------------------------------- |
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|
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if(.not.initialized) then |
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initialized=.TRUE. |
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ZFSUPAD = 0. |
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ZFSDNAD = 0. |
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ZFSUPAI = 0. |
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ZFSDNAI = 0. |
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endif |
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!rv |
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|
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IF (appel1er) THEN |
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PRINT*, 'SW calling frequency: ', swpas |
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PRINT*, " In general, it should be 1" |
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appel1er = .FALSE. |
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ENDIF |
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|
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IF (MOD(itapsw, swpas).EQ.0) THEN |
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DO JK = 1 , KFLEV |
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DO JL = 1, KDLON |
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ZCLDSW0(JL, JK) = 0.0 |
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ZOZ(JL, JK) = POZON(JL, JK) / (dobson_u * 1E3 * rg) * PDP(JL, JK) |
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ENDDO |
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ENDDO |
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|
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! clear-sky: |
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CALL SWU(PSCT, ZCLDSW0, PPMB, PPSOL, & |
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PRMU0, PFRAC, PTAVE, PWV, & |
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ZAKI, ZCLD, ZCLEAR, ZDSIG, ZFACT, ZRMU, ZSEC, ZUD) |
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INU = 1 |
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CALL SW1S(INU, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, POMEGA, ZOZ, & |
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ZRMU, ZSEC, PTAU, ZUD, ZFD, ZFU) |
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INU = 2 |
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CALL SW2S(INU, ZAKI, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, POMEGA, & |
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ZOZ, ZRMU, ZSEC, PTAU, ZUD, PWV, PQS, ZFDOWN, ZFUP) |
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DO JK = 1 , KFLEV+1 |
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DO JL = 1, KDLON |
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ZFSUP0(JL, JK) = (ZFUP(JL, JK) + ZFU(JL, JK)) * ZFACT(JL) |
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ZFSDN0(JL, JK) = (ZFDOWN(JL, JK) + ZFD(JL, JK)) * ZFACT(JL) |
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ENDDO |
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ENDDO |
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|
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CALL SWU(PSCT, PCLDSW, PPMB, PPSOL, & |
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PRMU0, PFRAC, PTAVE, PWV, & |
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ZAKI, ZCLD, ZCLEAR, ZDSIG, ZFACT, ZRMU, ZSEC, ZUD) |
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INU = 1 |
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CALL SW1S(INU, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, POMEGA, ZOZ, & |
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ZRMU, ZSEC, PTAU, ZUD, ZFD, ZFU) |
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INU = 2 |
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CALL SW2S(INU, ZAKI, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, POMEGA, & |
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ZOZ, ZRMU, ZSEC, PTAU, ZUD, PWV, PQS, ZFDOWN, ZFUP) |
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|
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! cloudy-sky: |
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|
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DO JK = 1 , KFLEV+1 |
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DO JL = 1, KDLON |
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ZFSUP(JL, JK) = (ZFUP(JL, JK) + ZFU(JL, JK)) * ZFACT(JL) |
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ZFSDN(JL, JK) = (ZFDOWN(JL, JK) + ZFD(JL, JK)) * ZFACT(JL) |
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ENDDO |
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ENDDO |
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|
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IF (ok_ade) THEN |
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! cloudy-sky + aerosol dir OB |
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CALL SWU(PSCT, PCLDSW, PPMB, PPSOL, PRMU0, PFRAC, PTAVE, PWV, ZAKI, & |
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ZCLD, ZCLEAR, ZDSIG, ZFACT, ZRMU, ZSEC, ZUD) |
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INU = 1 |
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CALL SW1S(INU, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, POMEGA, ZOZ, & |
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ZRMU, ZSEC, PTAU, ZUD, ZFD, ZFU) |
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INU = 2 |
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CALL SW2S(INU, ZAKI, PALBD, PALBP, PCG, ZCLD, ZCLEAR, ZDSIG, & |
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POMEGA, ZOZ, ZRMU, ZSEC, PTAU, ZUD, PWV, PQS, ZFDOWN, ZFUP) |
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DO JK = 1 , KFLEV+1 |
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DO JL = 1, KDLON |
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ZFSUPAD(JL, JK) = ZFSUP(JL, JK) |
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ZFSDNAD(JL, JK) = ZFSDN(JL, JK) |
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ZFSUP(JL, JK) = (ZFUP(JL, JK) + ZFU(JL, JK)) * ZFACT(JL) |
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ZFSDN(JL, JK) = (ZFDOWN(JL, JK) + ZFD(JL, JK)) * ZFACT(JL) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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itapsw = 0 |
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ENDIF |
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itapsw = itapsw + 1 |
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|
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DO k = 1, KFLEV |
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kpl1 = k+1 |
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DO i = 1, KDLON |
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PHEAT(i, k) = -(ZFSUP(i, kpl1)-ZFSUP(i, k)) & |
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-(ZFSDN(i, k)-ZFSDN(i, kpl1)) |
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PHEAT(i, k) = PHEAT(i, k) * RDAY*RG/RCPD / PDP(i, k) |
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PHEAT0(i, k) = -(ZFSUP0(i, kpl1)-ZFSUP0(i, k)) & |
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-(ZFSDN0(i, k)-ZFSDN0(i, kpl1)) |
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PHEAT0(i, k) = PHEAT0(i, k) * RDAY*RG/RCPD / PDP(i, k) |
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ENDDO |
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ENDDO |
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DO i = 1, KDLON |
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PALBPLA(i) = ZFSUP(i, KFLEV+1)/(ZFSDN(i, KFLEV+1)+1.0e-20) |
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|
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PSOLSW(i) = ZFSDN(i, 1) - ZFSUP(i, 1) |
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PTOPSW(i) = ZFSDN(i, KFLEV+1) - ZFSUP(i, KFLEV+1) |
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|
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PSOLSW0(i) = ZFSDN0(i, 1) - ZFSUP0(i, 1) |
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PTOPSW0(i) = ZFSDN0(i, KFLEV+1) - ZFSUP0(i, KFLEV+1) |
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|
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PSOLSWAD(i) = ZFSDNAD(i, 1) - ZFSUPAD(i, 1) |
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PTOPSWAD(i) = ZFSDNAD(i, KFLEV+1) - ZFSUPAD(i, KFLEV+1) |
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|
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PSOLSWAI(i) = ZFSDNAI(i, 1) - ZFSUPAI(i, 1) |
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PTOPSWAI(i) = ZFSDNAI(i, KFLEV+1) - ZFSUPAI(i, KFLEV+1) |
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ENDDO |
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|
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END SUBROUTINE SW |
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|
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end module sw_m |
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