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!
END FUNCTION f_h_louis_sclr
!!
FUNCTION f_h_louis_vctr( pzu, pRib, pChn, pz0 )
REAL(wp), DIMENSION(jpi,jpj) :: f_h_louis_vctr
REAL(wp), INTENT(in) :: pzu
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pRib
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pChn
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pz0
INTEGER :: ji, jj
DO_2D( nn_hls, nn_hls, nn_hls, nn_hls )
f_h_louis_vctr(ji,jj) = f_h_louis_sclr( pzu, pRib(ji,jj), pChn(ji,jj), pz0(ji,jj) )
END_2D
END FUNCTION f_h_louis_vctr
FUNCTION UN10_from_ustar( pzu, pUzu, pus, ppsi )
!!----------------------------------------------------------------------------------
!! Provides the neutral-stability wind speed at 10 m
!!----------------------------------------------------------------------------------
REAL(wp), DIMENSION(jpi,jpj) :: UN10_from_ustar !: neutral stability wind speed at 10m [m/s]
REAL(wp), INTENT(in) :: pzu !: measurement heigh of wind speed [m]
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pUzu !: bulk wind speed at height pzu m [m/s]
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pus !: friction velocity [m/s]
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: ppsi !: "Psi_m(pzu/L)" stability correction profile for momentum []
!!----------------------------------------------------------------------------------
UN10_from_ustar(:,:) = pUzu(:,:) - pus(:,:)/vkarmn * ( LOG(pzu/10._wp) - ppsi(:,:) )
!!
END FUNCTION UN10_from_ustar
FUNCTION UN10_from_CD( pzu, pUb, pCd, ppsi )
!!----------------------------------------------------------------------------------
!! Provides the neutral-stability wind speed at 10 m
!!----------------------------------------------------------------------------------
REAL(wp), DIMENSION(jpi,jpj) :: UN10_from_CD !: [m/s]
REAL(wp), INTENT(in) :: pzu !: measurement heigh of bulk wind speed
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pUb !: bulk wind speed at height pzu m [m/s]
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pCd !: drag coefficient
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: ppsi !: "Psi_m(pzu/L)" stability correction profile for momentum []
!!----------------------------------------------------------------------------------
!! Reminder: UN10 = u*/vkarmn * log(10/z0)
!! and: u* = sqrt(Cd) * Ub
!! u*/vkarmn * log( 10 / z0 )
UN10_from_CD(:,:) = SQRT(pCd(:,:))*pUb/vkarmn * LOG( 10._wp / z0_from_Cd( pzu, pCd(:,:), ppsi=ppsi(:,:) ) )
!!
END FUNCTION UN10_from_CD
FUNCTION z0tq_LKB( iflag, pRer, pz0 )
!!---------------------------------------------------------------------------------
!! *** FUNCTION z0tq_LKB ***
!!
!! ** Purpose : returns the "temperature/humidity roughness lengths"
!! * iflag==1 => temperature => returns: z_{0t}
!! * iflag==2 => humidity => returns: z_{0q}
!! from roughness reynold number "pRer" (i.e. [z_0 u*]/Nu_{air})
!! between 0 and 1000. Out of range "pRer" indicated by prt=-999.
!! and roughness length (for momentum)
!!
!! Based on Liu et al. (1979) JAS 36 1722-1723s
!!
!! Note: this is what is used into COARE 2.5 to estimate z_{0t} and z_{0q}
!!
!! ** Author: L. Brodeau, April 2020 / AeroBulk (https://github.com/brodeau/aerobulk/)
!!----------------------------------------------------------------------------------
REAL(wp), DIMENSION(jpi,jpj) :: z0tq_LKB
INTEGER, INTENT(in) :: iflag !: 1 => dealing with temperature; 2 => dealing with humidity
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pRer !: roughness Reynolds number [z_0 u*]/Nu_{air}
REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pz0 !: roughness length (for momentum) [m]
!-------------------------------------------------------------------
! Scalar Re_r relation from Liu et al.
REAL(wp), DIMENSION(8,2), PARAMETER :: &
& XA = RESHAPE( (/ 0.177, 1.376, 1.026, 1.625, 4.661, 34.904, 1667.19, 5.88e5, &
& 0.292, 1.808, 1.393, 1.956, 4.994, 30.709, 1448.68, 2.98e5 /), (/8,2/) )
!!
REAL(wp), DIMENSION(8,2), PARAMETER :: &
& XB = RESHAPE( (/ 0., 0.929, -0.599, -1.018, -1.475, -2.067, -2.907, -3.935, &
& 0., 0.826, -0.528, -0.870, -1.297, -1.845, -2.682, -3.616 /), (/8,2/) )
!!
REAL(wp), DIMENSION(0:8), PARAMETER :: &
& XRAN = (/ 0., 0.11, 0.825, 3.0, 10.0, 30.0, 100., 300., 1000. /)
!-------------------------------------------------------------------
!
!-------------------------------------------------------------------
! Scalar Re_r relation from Moana Wave data.
!
! real*8 A(9,2),B(9,2),RAN(9),pRer,prt
! integer iflag
! DATA A/0.177,2.7e3,1.03,1.026,1.625,4.661,34.904,1667.19,5.88E5,
! & 0.292,3.7e3,1.4,1.393,1.956,4.994,30.709,1448.68,2.98E5/
! DATA B/0.,4.28,0,-0.599,-1.018,-1.475,-2.067,-2.907,-3.935,
! & 0.,4.28,0,-0.528,-0.870,-1.297,-1.845,-2.682,-3.616/
! DATA RAN/0.11,.16,1.00,3.0,10.0,30.0,100.,300.,1000./
!-------------------------------------------------------------------
LOGICAL :: lfound=.FALSE.
REAL(wp) :: zrr
INTEGER :: ji, jj, jm
z0tq_LKB(:,:) = -999._wp
DO_2D( nn_hls, nn_hls, nn_hls, nn_hls )
zrr = pRer(ji,jj)
lfound = .FALSE.
IF( (zrr > 0.).AND.(zrr < 1000.) ) THEN
jm = 0
DO WHILE ( .NOT. lfound )
jm = jm + 1
lfound = ( (zrr > XRAN(jm-1)) .AND. (zrr <= XRAN(jm)) )
END DO
z0tq_LKB(ji,jj) = XA(jm,iflag)*zrr**XB(jm,iflag) * pz0(ji,jj)/zrr
END IF
END_2D
z0tq_LKB(:,:) = MIN( MAX(ABS(z0tq_LKB(:,:)), 1.E-9) , 0.05_wp )
END FUNCTION z0tq_LKB
!!======================================================================
END MODULE sbc_phy