! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ! Copyright (c) 2015, Regents of the University of Colorado ! All rights reserved. ! ! Redistribution and use in source and binary forms, with or without modification, are ! permitted provided that the following conditions are met: ! ! 1. Redistributions of source code must retain the above copyright notice, this list of ! conditions and the following disclaimer. ! ! 2. Redistributions in binary form must reproduce the above copyright notice, this list ! of conditions and the following disclaimer in the documentation and/or other ! materials provided with the distribution. ! ! 3. Neither the name of the copyright holder nor the names of its contributors may be ! used to endorse or promote products derived from this software without specific prior ! written permission. ! ! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY ! EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ! MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ! THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT ! OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS ! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ! LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ! OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ! ! History: ! 05/01/15 Dustin Swales - Original version ! 04/04/18 Rodrigo Guzman- Added CALIOP-like Ground LIDar routines (GLID) ! 10/04/18 Rodrigo Guzman- Added ATLID-like (EarthCare) lidar routines (ATLID) ! ! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% module cosp_optics USE COSP_KINDS, ONLY: wp,dp USE COSP_MATH_CONSTANTS, ONLY: pi USE COSP_PHYS_CONSTANTS, ONLY: rholiq,km,rd,grav USE MOD_MODIS_SIM, ONLY: get_g_nir,get_ssa_nir,phaseIsLiquid,phaseIsIce implicit none real(wp),parameter :: & ! ice_density = 0.93_wp ! Ice density used in MODIS phase partitioning interface cosp_simulator_optics module procedure cosp_simulator_optics2D, cosp_simulator_optics3D end interface cosp_simulator_optics contains ! ########################################################################## ! COSP_SIMULATOR_OPTICS ! ! Used by: ISCCP, MISR and MODIS simulators ! ########################################################################## subroutine cosp_simulator_optics2D(dim1,dim2,dim3,flag,varIN1,varIN2,varOUT) ! INPUTS integer,intent(in) :: & dim1, & ! Dimension 1 extent (Horizontal) dim2, & ! Dimension 2 extent (Subcolumn) dim3 ! Dimension 3 extent (Vertical) real(wp),intent(in),dimension(dim1,dim2,dim3) :: & flag ! Logical to determine the of merge var1IN and var2IN real(wp),intent(in),dimension(dim1, dim3) :: & varIN1, & ! Input field 1 varIN2 ! Input field 2 ! OUTPUTS real(wp),intent(out),dimension(dim1,dim2,dim3) :: & varOUT ! Merged output field ! LOCAL VARIABLES integer :: j varOUT(1:dim1,1:dim2,1:dim3) = 0._wp do j=1,dim2 where(flag(:,j,:) .eq. 1) varOUT(:,j,:) = varIN2 endwhere where(flag(:,j,:) .eq. 2) varOUT(:,j,:) = varIN1 endwhere enddo end subroutine cosp_simulator_optics2D subroutine cosp_simulator_optics3D(dim1,dim2,dim3,flag,varIN1,varIN2,varOUT) ! INPUTS integer,intent(in) :: & dim1, & ! Dimension 1 extent (Horizontal) dim2, & ! Dimension 2 extent (Subcolumn) dim3 ! Dimension 3 extent (Vertical) real(wp),intent(in),dimension(dim1,dim2,dim3) :: & flag ! Logical to determine the of merge var1IN and var2IN real(wp),intent(in),dimension(dim1,dim2,dim3) :: & varIN1, & ! Input field 1 varIN2 ! Input field 2 ! OUTPUTS real(wp),intent(out),dimension(dim1,dim2,dim3) :: & varOUT ! Merged output field varOUT(1:dim1,1:dim2,1:dim3) = 0._wp where(flag(:,:,:) .eq. 1) varOUT(:,:,:) = varIN2 endwhere where(flag(:,:,:) .eq. 2) varOUT(:,:,:) = varIN1 endwhere end subroutine cosp_simulator_optics3D ! ############################################################################## ! MODIS_OPTICS_PARTITION ! ! For the MODIS simulator, there are times when only a sinlge optical depth ! profile, cloud-ice and cloud-water are provided. In this case, the optical ! depth is partitioned by phase. ! ############################################################################## subroutine MODIS_OPTICS_PARTITION(npoints,nlev,ncolumns,cloudWater,cloudIce,waterSize, & iceSize,tau,tauL,tauI) ! INPUTS INTEGER,intent(in) :: & npoints, & ! Number of horizontal gridpoints nlev, & ! Number of levels ncolumns ! Number of subcolumns REAL(wp),intent(in),dimension(npoints,nlev,ncolumns) :: & cloudWater, & ! Subcolumn cloud water content cloudIce, & ! Subcolumn cloud ice content waterSize, & ! Subcolumn cloud water effective radius iceSize, & ! Subcolumn cloud ice effective radius tau ! Optical thickness ! OUTPUTS real(wp),intent(out),dimension(npoints,nlev,ncolumns) :: & tauL, & ! Partitioned liquid optical thickness. tauI ! Partitioned ice optical thickness. ! LOCAL VARIABLES real(wp),dimension(nlev,ncolumns) :: fracL integer :: i do i=1,npoints where(cloudIce(i,:, :) <= 0.) fracL(:, :) = 1._wp elsewhere where (cloudWater(i,:, :) <= 0.) fracL(:, :) = 0._wp elsewhere ! Geometic optics limit - tau as LWP/re (proportional to LWC/re) fracL(:, :) = (cloudWater(i,:, :)/waterSize(i,:, :)) / & (cloudWater(i,:, :)/waterSize(i,:, :) + cloudIce(i,:, :)/(ice_density * iceSize(i,:, :)) ) end where end where tauL(i,:, :) = fracL(:, :) * tau(i,:, :) tauI(i,:, :) = tau(i,:, :) - tauL(i,:, :) enddo end subroutine MODIS_OPTICS_PARTITION ! ######################################################################################## ! MODIS_OPTICS ! ! ######################################################################################## subroutine modis_optics(nPoints,nLevels,nSubCols,tauLIQ,sizeLIQ,tauICE,sizeICE,fracLIQ, g, w0) ! INPUTS integer, intent(in) :: nPoints,nLevels,nSubCols real(wp),intent(in),dimension(nPoints,nSubCols,nLevels) :: tauLIQ, sizeLIQ, tauICE, sizeICE ! OUTPUTS real(wp),intent(out),dimension(nPoints,nSubCols,nLevels) :: g,w0,fracLIQ ! LOCAL VARIABLES real(wp), dimension(nLevels) :: water_g, water_w0, ice_g, ice_w0,tau integer :: i,j ! Initialize g(1:nPoints,1:nSubCols,1:nLevels) = 0._wp w0(1:nPoints,1:nSubCols,1:nLevels) = 0._wp do j =1,nPoints do i=1,nSubCols water_g(1:nLevels) = get_g_nir( phaseIsLiquid, sizeLIQ(j,i,1:nLevels)) water_w0(1:nLevels) = get_ssa_nir(phaseIsLiquid, sizeLIQ(j,i,1:nLevels)) ice_g(1:nLevels) = get_g_nir( phaseIsIce, sizeICE(j,i,1:nLevels)) ice_w0(1:nLevels) = get_ssa_nir(phaseIsIce, sizeICE(j,i,1:nLevels)) ! Combine ice and water optical properties tau(1:nLevels) = tauICE(j,i,1:nLevels) + tauLIQ(j,i,1:nLevels) where (tau(1:nLevels) > 0) w0(j,i,1:nLevels) = (tauLIQ(j,i,1:nLevels)*water_w0(1:nLevels) + tauICE(j,i,1:nLevels) *ice_w0(1:nLevels)) / & (tau(1:nLevels)) g(j,i,1:nLevels) = (tauLIQ(j,i,1:nLevels)*water_g(1:nLevels)*water_w0(1:nLevels) + tauICE(j,i,1:nLevels) * & ice_g(1:nLevels) * ice_w0(1:nLevels)) / (w0(j,i,1:nLevels) * tau(1:nLevels)) end where enddo enddo ! Compute the total optical thickness and the proportion due to liquid in each cell do i=1,npoints where(tauLIQ(i,1:nSubCols,1:nLevels) + tauICE(i,1:nSubCols,1:nLevels) > 0.) fracLIQ(i,1:nSubCols,1:nLevels) = tauLIQ(i,1:nSubCols,1:nLevels)/ & (tauLIQ(i,1:nSubCols,1:nLevels) + tauICE(i,1:nSubCols,1:nLevels)) elsewhere fracLIQ(i,1:nSubCols,1:nLevels) = 0._wp end where enddo end subroutine modis_optics ! ###################################################################################### ! SUBROUTINE lidar_optics ! ###################################################################################### subroutine lidar_optics(npoints, ncolumns, nlev, npart, ice_type, lidar_freq, lground, & q_lsliq, q_lsice, q_cvliq, q_cvice, ls_radliq, ls_radice, cv_radliq, cv_radice, & pres, presf, temp, beta_mol, betatot, tau_mol, tautot, tautot_S_liq, tautot_S_ice,& betatot_ice, betatot_liq, tautot_ice, tautot_liq) ! #################################################################################### ! NOTE: Using "grav" from cosp_constants.f90, instead of grav=9.81, introduces ! changes of up to 2% in atb532 adn 0.003% in parasolRefl and lidarBetaMol532. ! This also results in small changes in the joint-histogram, cfadLidarsr532. ! #################################################################################### ! INPUTS INTEGER,intent(in) :: & npoints, & ! Number of gridpoints ncolumns, & ! Number of subcolumns nlev, & ! Number of levels npart, & ! Number of cloud meteors (stratiform_liq, stratiform_ice, conv_liq, conv_ice). ice_type, & ! Ice particle shape hypothesis (0 for spheres, 1 for non-spherical) lidar_freq ! Lidar frequency (nm). Use to change between lidar platforms logical,intent(in) :: & lground ! True for ground-based lidar REAL(WP),intent(in),dimension(npoints,nlev) :: & temp, & ! Temperature of layer k pres, & ! Pressure at full levels ls_radliq, & ! Effective radius of LS liquid particles (meters) ls_radice, & ! Effective radius of LS ice particles (meters) cv_radliq, & ! Effective radius of CONV liquid particles (meters) cv_radice ! Effective radius of CONV ice particles (meters) REAL(WP),intent(in),dimension(npoints,ncolumns,nlev) :: & q_lsliq, & ! LS sub-column liquid water mixing ratio (kg/kg) q_lsice, & ! LS sub-column ice water mixing ratio (kg/kg) q_cvliq, & ! CONV sub-column liquid water mixing ratio (kg/kg) q_cvice ! CONV sub-column ice water mixing ratio (kg/kg) REAL(WP),intent(in),dimension(npoints,nlev+1) :: & presf ! Pressure at half levels ! OUTPUTS REAL(WP),intent(out),dimension(npoints,ncolumns,nlev) :: & betatot, & ! tautot ! Optical thickess integrated from top REAL(WP),intent(out),dimension(npoints,nlev) :: & beta_mol, & ! Molecular backscatter coefficient tau_mol ! Molecular optical depth ! OUTPUTS (optional) REAL(WP),optional,intent(out),dimension(npoints,ncolumns) :: & tautot_S_liq, & ! TOA optical depth for liquid tautot_S_ice ! TOA optical depth for ice REAL(WP),optional,intent(out),dimension(npoints,ncolumns,nlev) :: & betatot_ice, & ! Backscatter coefficient for ice particles betatot_liq, & ! Backscatter coefficient for liquid particles tautot_ice, & ! Total optical thickness of ice tautot_liq ! Total optical thickness of liq ! LOCAL VARIABLES REAL(WP),dimension(npart) :: rhopart REAL(WP),dimension(npart,5) :: polpart REAL(WP),dimension(npoints,nlev) :: rhoair,alpha_mol REAL(WP),dimension(npoints,nlev+1) :: zheight REAL(WP),dimension(npoints,nlev,npart) :: rad_part,kp_part,qpart,alpha_part,tau_part real(wp) :: Cmol,rdiffm logical :: lparasol,lphaseoptics INTEGER :: i,k,icol,zi,zf,zinc,zoffset ! Local data REAL(WP),PARAMETER :: rhoice = 0.5e+03 ! Density of ice (kg/m3) REAL(WP),PARAMETER :: Cmol_532nm = 6.2446e-32 ! Wavelength dependent REAL(WP),PARAMETER :: Cmol_355nm = 3.2662e-31! Wavelength dependent REAL(WP),PARAMETER :: rdiffm_532nm = 0.7_wp ! Multiple scattering correction parameter REAL(WP),PARAMETER :: rdiffm_355nm = 0.6_wp ! Multiple scattering correction parameter REAL(WP),PARAMETER :: Qscat = 2.0_wp ! Particle scattering efficiency at 532 nm ! Local indicies for large-scale and convective ice and liquid INTEGER,PARAMETER :: INDX_LSLIQ = 1 INTEGER,PARAMETER :: INDX_LSICE = 2 INTEGER,PARAMETER :: INDX_CVLIQ = 3 INTEGER,PARAMETER :: INDX_CVICE = 4 ! Polarized optics parameterization ! Polynomial coefficients for spherical liq/ice particles derived from Mie theory. ! Polynomial coefficients for non spherical particles derived from a composite of ! Ray-tracing theory for large particles (e.g. Noel et al., Appl. Opt., 2001) ! and FDTD theory for very small particles (Yang et al., JQSRT, 2003). ! We repeat the same coefficients for LS and CONV cloud to make code more readable REAL(WP),PARAMETER,dimension(5) :: & polpartCVLIQ = (/ 2.6980e-8_wp, -3.7701e-6_wp, 1.6594e-4_wp, -0.0024_wp, 0.0626_wp/), & polpartLSLIQ = (/ 2.6980e-8_wp, -3.7701e-6_wp, 1.6594e-4_wp, -0.0024_wp, 0.0626_wp/), & polpartCVICE0 = (/-1.0176e-8_wp, 1.7615e-6_wp, -1.0480e-4_wp, 0.0019_wp, 0.0460_wp/), & polpartLSICE0 = (/-1.0176e-8_wp, 1.7615e-6_wp, -1.0480e-4_wp, 0.0019_wp, 0.0460_wp/), & polpartCVICE1 = (/ 1.3615e-8_wp, -2.04206e-6_wp, 7.51799e-5_wp, 0.00078213_wp, 0.0182131_wp/), & polpartLSICE1 = (/ 1.3615e-8_wp, -2.04206e-6_wp, 7.51799e-5_wp, 0.00078213_wp, 0.0182131_wp/) ! ############################################################################## ! Which LIDAR frequency are we using? if (lidar_freq .eq. 355) then Cmol = Cmol_355nm rdiffm = rdiffm_355nm endif if (lidar_freq .eq. 532) then Cmol = Cmol_532nm rdiffm = rdiffm_532nm endif ! Do we need to generate optical inputs for Parasol simulator? lparasol = .false. if (present(tautot_S_liq) .and. present(tautot_S_ice)) lparasol = .true. ! Are optical-depths and backscatter coefficients for ice and liquid requested? lphaseoptics=.false. if (present(betatot_ice) .and. present(betatot_liq) .and. present(tautot_liq) .and. & present(tautot_ice)) lphaseoptics=.true. ! Is this lidar spaceborne (default) or ground-based (lground=.true.)? zi = 2 zf = nlev zinc = 1 zoffset = -1 if (lground) then zi = nlev-1 zf = 1 zinc = -1 zoffset = 1 endif ! Liquid/ice particles rhopart(INDX_LSLIQ) = rholiq rhopart(INDX_LSICE) = rhoice rhopart(INDX_CVLIQ) = rholiq rhopart(INDX_CVICE) = rhoice ! LS and CONV Liquid water coefficients polpart(INDX_LSLIQ,1:5) = polpartLSLIQ polpart(INDX_CVLIQ,1:5) = polpartCVLIQ ! LS and CONV Ice water coefficients if (ice_type .eq. 0) then polpart(INDX_LSICE,1:5) = polpartLSICE0 polpart(INDX_CVICE,1:5) = polpartCVICE0 endif if (ice_type .eq. 1) then polpart(INDX_LSICE,1:5) = polpartLSICE1 polpart(INDX_CVICE,1:5) = polpartCVICE1 endif ! Effective radius particles: rad_part(1:npoints,1:nlev,INDX_LSLIQ) = ls_radliq(1:npoints,1:nlev) rad_part(1:npoints,1:nlev,INDX_LSICE) = ls_radice(1:npoints,1:nlev) rad_part(1:npoints,1:nlev,INDX_CVLIQ) = cv_radliq(1:npoints,1:nlev) rad_part(1:npoints,1:nlev,INDX_CVICE) = cv_radice(1:npoints,1:nlev) rad_part(1:npoints,1:nlev,1:npart) = MAX(rad_part(1:npoints,1:nlev,1:npart),0._wp) rad_part(1:npoints,1:nlev,1:npart) = MIN(rad_part(1:npoints,1:nlev,1:npart),70.0e-6_wp) ! Density (clear-sky air) rhoair(1:npoints,1:nlev) = pres(1:npoints,1:nlev)/(rd*temp(1:npoints,1:nlev)) ! Altitude at half pressure levels: zheight(1:npoints,nlev+1) = 0._wp do k=nlev,1,-1 zheight(1:npoints,k) = zheight(1:npoints,k+1) & -(presf(1:npoints,k)-presf(1:npoints,k+1))/(rhoair(1:npoints,k)*grav) enddo ! ############################################################################## ! *) Molecular alpha, beta and optical thickness ! ############################################################################## beta_mol(1:npoints,1:nlev) = pres(1:npoints,1:nlev)/km/temp(1:npoints,1:nlev)*Cmol alpha_mol(1:npoints,1:nlev) = 8._wp*pi/3._wp * beta_mol(1:npoints,1:nlev) ! Optical thickness of each layer (molecular) tau_mol(1:npoints,1:nlev) = alpha_mol(1:npoints,1:nlev)*(zheight(1:npoints,1:nlev)-& zheight(1:npoints,2:nlev+1)) ! Optical thickness from TOA to layer k (molecular) DO k = zi,zf,zinc tau_mol(1:npoints,k) = tau_mol(1:npoints,k) + tau_mol(1:npoints,k+zoffset) ENDDO betatot (1:npoints,1:ncolumns,1:nlev) = spread(beta_mol(1:npoints,1:nlev), dim=2, NCOPIES=ncolumns) tautot (1:npoints,1:ncolumns,1:nlev) = spread(tau_mol (1:npoints,1:nlev), dim=2, NCOPIES=ncolumns) if (lphaseoptics) then betatot_liq(1:npoints,1:ncolumns,1:nlev) = betatot(1:npoints,1:ncolumns,1:nlev) betatot_ice(1:npoints,1:ncolumns,1:nlev) = betatot(1:npoints,1:ncolumns,1:nlev) tautot_liq (1:npoints,1:ncolumns,1:nlev) = tautot(1:npoints,1:ncolumns,1:nlev) tautot_ice (1:npoints,1:ncolumns,1:nlev) = tautot(1:npoints,1:ncolumns,1:nlev) endif ! ############################################################################## ! *) Particles alpha, beta and optical thickness ! ############################################################################## ! Polynomials kp_lidar derived from Mie theory do i = 1, npart where (rad_part(1:npoints,1:nlev,i) .gt. 0.0) kp_part(1:npoints,1:nlev,i) = & polpart(i,1)*(rad_part(1:npoints,1:nlev,i)*1e6)**4 & + polpart(i,2)*(rad_part(1:npoints,1:nlev,i)*1e6)**3 & + polpart(i,3)*(rad_part(1:npoints,1:nlev,i)*1e6)**2 & + polpart(i,4)*(rad_part(1:npoints,1:nlev,i)*1e6) & + polpart(i,5) elsewhere kp_part(1:npoints,1:nlev,i) = 0._wp endwhere enddo ! Initialize (if necessary) if (lparasol) then tautot_S_liq(1:npoints,1:ncolumns) = 0._wp tautot_S_ice(1:npoints,1:ncolumns) = 0._wp endif ! Loop over all subcolumns do icol=1,ncolumns ! ############################################################################## ! Mixing ratio particles in each subcolum ! ############################################################################## qpart(1:npoints,1:nlev,INDX_LSLIQ) = q_lsliq(1:npoints,icol,1:nlev) qpart(1:npoints,1:nlev,INDX_LSICE) = q_lsice(1:npoints,icol,1:nlev) qpart(1:npoints,1:nlev,INDX_CVLIQ) = q_cvliq(1:npoints,icol,1:nlev) qpart(1:npoints,1:nlev,INDX_CVICE) = q_cvice(1:npoints,icol,1:nlev) ! ############################################################################## ! Alpha and optical thickness (particles) ! ############################################################################## ! Alpha of particles in each subcolumn: do i = 1, npart where (rad_part(1:npoints,1:nlev,i) .gt. 0.0) alpha_part(1:npoints,1:nlev,i) = 3._wp/4._wp * Qscat & * rhoair(1:npoints,1:nlev) * qpart(1:npoints,1:nlev,i) & / (rhopart(i) * rad_part(1:npoints,1:nlev,i) ) elsewhere alpha_part(1:npoints,1:nlev,i) = 0._wp endwhere enddo ! Optical thicknes tau_part(1:npoints,1:nlev,1:npart) = rdiffm * alpha_part(1:npoints,1:nlev,1:npart) do i = 1, npart ! Optical thickness of each layer (particles) tau_part(1:npoints,1:nlev,i) = tau_part(1:npoints,1:nlev,i) & & * (zheight(1:npoints,1:nlev)-zheight(1:npoints,2:nlev+1) ) ! Optical thickness from TOA to layer k (particles) do k=zi,zf,zinc tau_part(1:npoints,k,i) = tau_part(1:npoints,k,i) + tau_part(1:npoints,k+zoffset,i) enddo enddo ! ############################################################################## ! Beta and optical thickness (total=molecular + particules) ! ############################################################################## DO i = 1, npart betatot(1:npoints,icol,1:nlev) = betatot(1:npoints,icol,1:nlev) + & kp_part(1:npoints,1:nlev,i)*alpha_part(1:npoints,1:nlev,i) tautot(1:npoints,icol,1:nlev) = tautot(1:npoints,icol,1:nlev) + & tau_part(1:npoints,1:nlev,i) ENDDO ! ############################################################################## ! Beta and optical thickness (liquid/ice) ! ############################################################################## if (lphaseoptics) then ! Ice betatot_ice(1:npoints,icol,1:nlev) = betatot_ice(1:npoints,icol,1:nlev)+ & kp_part(1:npoints,1:nlev,INDX_LSICE)*alpha_part(1:npoints,1:nlev,INDX_LSICE)+ & kp_part(1:npoints,1:nlev,INDX_CVICE)*alpha_part(1:npoints,1:nlev,INDX_CVICE) tautot_ice(1:npoints,icol,1:nlev) = tautot_ice(1:npoints,icol,1:nlev) + & tau_part(1:npoints,1:nlev,INDX_LSICE) + & tau_part(1:npoints,1:nlev,INDX_CVICE) ! Liquid betatot_liq(1:npoints,icol,1:nlev) = betatot_liq(1:npoints,icol,1:nlev)+ & kp_part(1:npoints,1:nlev,INDX_LSLIQ)*alpha_part(1:npoints,1:nlev,INDX_LSLIQ)+ & kp_part(1:npoints,1:nlev,INDX_CVLIQ)*alpha_part(1:npoints,1:nlev,INDX_CVLIQ) tautot_liq(1:npoints,icol,1:nlev) = tautot_liq(1:npoints,icol,1:nlev) + & tau_part(1:npoints,1:nlev,INDX_LSLIQ) + & tau_part(1:npoints,1:nlev,INDX_CVLIQ) endif ! ############################################################################## ! Optical depths used by the PARASOL simulator ! ############################################################################## if (lparasol) then tautot_S_liq(:,icol) = tau_part(:,nlev,1)+tau_part(:,nlev,3) tautot_S_ice(:,icol) = tau_part(:,nlev,2)+tau_part(:,nlev,4) endif enddo end subroutine lidar_optics end module cosp_optics