SUBROUTINE lpm_data_output_particles

!--------------------------------------------------------------------------------!
! 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 <http://www.gnu.org/licenses/>.
!
! Copyright 1997-2012  Leibniz University Hannover
!--------------------------------------------------------------------------------!
!
! Current revisions:
! ------------------
! 
!
! Former revisions:
! -----------------
! $Id: lpm_data_output_particles.f90 1037 2012-10-22 14:10:22Z fuhrmann $
!
! 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)
!
! 22/02/12 - Initial version
!
! Description:
! ------------
! Write particle data in FORTRAN binary and/or netCDF format 
!------------------------------------------------------------------------------!

    USE control_parameters
    USE cpulog
    USE interfaces
    USE netcdf_control
    USE particle_attributes

    IMPLICIT NONE


    CALL cpu_log( log_point_s(40), 'lpm_data_output', 'start' )

!
!-- Attention: change version number for unit 85 (in routine check_open)
!--            whenever the output format for this unit is changed!
    CALL check_open( 85 )

    WRITE ( 85 )  simulated_time, maximum_number_of_particles, &
                  number_of_particles
    WRITE ( 85 )  particles
    WRITE ( 85 )  maximum_number_of_tailpoints, maximum_number_of_tails, &
                  number_of_tails
    IF ( maximum_number_of_tails > 0 )  THEN
       WRITE ( 85 )  particle_tail_coordinates
    ENDIF

    CALL close_file( 85 )


#if defined( __netcdf )
!
!-- Output in netCDF format
    IF ( netcdf_output )  THEN

       CALL check_open( 108 )

!
!--    Update the NetCDF time axis
       prt_time_count = prt_time_count + 1

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_time_prt, &
                               (/ simulated_time /),        &
                               start = (/ prt_time_count /), count = (/ 1 /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 1 )

!
!--    Output the real number of particles used
       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_rnop_prt, &
                               (/ number_of_particles /),   &
                               start = (/ prt_time_count /), count = (/ 1 /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 2 )

!
!--    Output all particle attributes
       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(1), particles%age,      &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 3 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(2), particles%dvrp_psize,&
                               start = (/ 1, prt_time_count /),                &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 4 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(3), particles%origin_x, &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 5 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(4), particles%origin_y, &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 6 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(5), particles%origin_z, &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 7 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(6), particles%radius,   &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 8 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(7), particles%speed_x,  &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 9 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(8), particles%speed_y,  &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 10 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(9), particles%speed_z,  &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 11 )

       nc_stat = NF90_PUT_VAR( id_set_prt,id_var_prt(10),                     &
                               particles%weight_factor,                       &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 12 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(11), particles%x,       &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 13 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(12), particles%y,       & 
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 14 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(13), particles%z,       &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 15 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(14), particles%class,   &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 16 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(15), particles%group,   &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 17 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(16),                    &
                               particles%tailpoints,                          &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 18 )

       nc_stat = NF90_PUT_VAR( id_set_prt, id_var_prt(17), particles%tail_id, &
                               start = (/ 1, prt_time_count /),               &
                               count = (/ maximum_number_of_particles /) )
       CALL handle_netcdf_error( 'lpm_data_output_particles', 19 )

    ENDIF

#endif

    CALL cpu_log( log_point_s(40), 'lpm_data_output', 'stop' )

 END SUBROUTINE lpm_data_output_particles