MODULE flo_oce
   !!======================================================================
   !!                     ***  MODULE flo_oce  ***
   !! lagrangian floats :   define in memory all floats parameters and variables
   !!======================================================================
   !! History :   OPA  ! 1999-10  (CLIPPER projet)
   !!   NEMO      1.0  ! 2002-11  (G. Madec, A. Bozec)  F90: Free form and module
   !!----------------------------------------------------------------------
#if   defined key_floats   ||   defined key_esopa
   !!----------------------------------------------------------------------
   !!   'key_floats'                                        drifting floats
   !!----------------------------------------------------------------------
   USE par_oce         ! ocean parameters

   IMPLICIT NONE
   PUBLIC

   LOGICAL, PUBLIC, PARAMETER ::   lk_floats = .TRUE.    !: float flag

   !! float parameters
   !! ----------------
   INTEGER, PUBLIC, PARAMETER ::   jpnfl     = 23 ,                !: total number of floats during the run
   INTEGER, PUBLIC, PARAMETER ::   jpnnewflo =  0 ,                !: number of floats added in a new run
   INTEGER, PUBLIC, PARAMETER ::   jpnrstflo = jpnfl - jpnnewflo   !: number of floats for the restart

   !! float variables
   !! ---------------
   INTEGER, PUBLIC, DIMENSION(jpnfl)  ::   nisobfl   !: =0 for a isobar float , =1 for a float following the w velocity
   INTEGER, PUBLIC, DIMENSION(jpnfl)  ::   ngrpfl    !: number to identify searcher group

   REAL(wp), PUBLIC, DIMENSION(jpnfl) ::   flxx , flyy , flzz    !: longitude, latitude, depth of float (decimal degree, m >0)
   REAL(wp), PUBLIC, DIMENSION(jpnfl) ::   tpifl, tpjfl, tpkfl   !: (i,j,k) indices of float position

   REAL(wp), PUBLIC, DIMENSION(jpi, jpj, jpk) ::   wb            !: vertical velocity at previous time step (m s-1).
   
   !                                  !!! * namelist namflo : langrangian floats *
   LOGICAL, PUBLIC  ::   ln_rstflo  = .FALSE.    !: T/F float restart 
   LOGICAL, PUBLIC  ::   ln_argo    = .FALSE.    !: T/F argo type floats
   LOGICAL, PUBLIC  ::   ln_flork4  = .FALSE.    !: T/F 4th order Runge-Kutta
   INTEGER, PUBLIC  ::   nn_writefl = 150       !: frequency of float output file 
   INTEGER, PUBLIC  ::   nn_stockfl = 450       !: frequency of float restart file

#else
   !!----------------------------------------------------------------------
   !!   Default option :                                 NO drifting floats
   !!----------------------------------------------------------------------
   LOGICAL, PUBLIC, PARAMETER ::   lk_floats = .FALSE.   !: float flag
#endif

   !!----------------------------------------------------------------------
   !! NEMO/OPA 3.2 , LOCEAN-IPSL (2009) 
   !! $Id$ 
   !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt)
   !!======================================================================
END MODULE flo_oce