!> @file lpm_calc_liquid_water_content.f90 !--------------------------------------------------------------------------------! ! This file is part of PALM. ! ! PALM is free software: you can redistribute it and/or modify it under the terms ! of the GNU General Public License as published by the Free Software Foundation, ! either version 3 of the License, or (at your option) any later version. ! ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. ! ! You should have received a copy of the GNU General Public License along with ! PALM. If not, see . ! ! Copyright 1997-2014 Leibniz Universitaet Hannover !--------------------------------------------------------------------------------! ! ! Current revisions: ! ------------------ ! ! ! Former revisions: ! ----------------- ! $Id: lpm_calc_liquid_water_content.f90 1683 2015-10-07 23:57:51Z hoffmann $ ! ! 1682 2015-10-07 23:56:08Z knoop ! Code annotations made doxygen readable ! ! 1359 2014-04-11 17:15:14Z hoffmann ! New particle structure integrated. ! Kind definition added to all floating point numbers. ! ! 1320 2014-03-20 08:40:49Z raasch ! ONLY-attribute added to USE-statements, ! kind-parameters added to all INTEGER and REAL declaration statements, ! kinds are defined in new module kinds, ! comment fields (!:) to be used for variable explanations added to ! all variable declaration statements ! ! 1036 2012-10-22 13:43:42Z raasch ! code put under GPL (PALM 3.9) ! ! 849 2012-03-15 10:35:09Z raasch ! initial revision (former part of advec_particles) ! ! ! Description: ! ------------ !> Calculate the liquid water content for each grid box. !------------------------------------------------------------------------------! SUBROUTINE lpm_calc_liquid_water_content USE arrays_3d, & ONLY: ql, ql_v, ql_vp USE cloud_parameters, & ONLY: rho_l USE constants, & ONLY: pi USE control_parameters, & ONLY: dz, message_string, rho_surface USE cpulog, & ONLY: cpu_log, log_point_s USE grid_variables, & ONLY: dx, dy USE indices, & ONLY: nxl, nxr, nyn, nys, nzb, nzt USE kinds USE particle_attributes, & ONLY: grid_particles, number_of_particles, particles, prt_count IMPLICIT NONE INTEGER(iwp) :: i !< INTEGER(iwp) :: j !< INTEGER(iwp) :: k !< INTEGER(iwp) :: n !< INTEGER(iwp) :: psi !< CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'start' ) ! !-- Set water content initially to zero ql = 0.0_wp; ql_v = 0.0_wp; ql_vp = 0.0_wp ! !-- Calculate for each grid box DO i = nxl, nxr DO j = nys, nyn DO k = nzb+1, nzt number_of_particles = prt_count(k,j,i) IF ( number_of_particles <= 0 ) CYCLE particles => grid_particles(k,j,i)%particles(1:number_of_particles) ! !-- Calculate the total volume in the boxes (ql_v, weighting factor !-- has to beincluded) DO n = 1, prt_count(k,j,i) ql_v(k,j,i) = ql_v(k,j,i) + particles(n)%weight_factor * & particles(n)%radius**3 ENDDO ! !-- Calculate the liquid water content IF ( ql_v(k,j,i) /= 0.0_wp ) THEN ql(k,j,i) = ql(k,j,i) + rho_l * 1.33333333_wp * pi * & ql_v(k,j,i) / & ( rho_surface * dx * dy * dz ) IF ( ql(k,j,i) < 0.0_wp ) THEN WRITE( message_string, * ) 'LWC out of range: ' , & ql(k,j,i),i,j,k CALL message( 'lpm_calc_liquid_water_content', '', 2, 2, & -1, 6, 1 ) ENDIF ELSE ql(k,j,i) = 0.0_wp ENDIF ENDDO ENDDO ENDDO CALL cpu_log( log_point_s(45), 'lpm_calc_ql', 'stop' ) END SUBROUTINE lpm_calc_liquid_water_content