!
! $Id: logic_mod.F90 2603 2016-07-25 09:31:56Z jyg $
!
MODULE logic_mod

IMPLICIT NONE

  LOGICAL purmats ! true if time stepping is purely Matsuno scheme
                  ! false implies Matsuno-Leapfrog time stepping scheme
  LOGICAL forward ! true if during forward phase of Matsuno step
  LOGICAL leapf ! true if during a leapfrog time stepping step
  LOGICAL apphys ! true if during a time step when physics will be called
  LOGICAL statcl
  LOGICAL conser
  LOGICAL apdiss ! true if during a time step when dissipation will be called
  LOGICAL apdelq
  LOGICAL saison
  LOGICAL ecripar
  LOGICAL fxyhypb ! true if using hyperbolic function discretization
                  ! for latitudinal grid 
  LOGICAL ysinus ! true if using sine function discretiation
                 ! for latitudinal grid
  LOGICAL read_start ! true if reading a start.nc file to initialize fields
  LOGICAL ok_guide ! true if nudging
  LOGICAL ok_strato
  LOGICAL ok_gradsfile
  LOGICAL ok_limit
  LOGICAL ok_etat0
  LOGICAL hybrid ! vertical coordinate is hybrid if true (sigma otherwise)
                 ! (only used if disvert_type==2)
  INTEGER iflag_phys ! type of physics to call: 0 none, 1: phy*** package,
                     ! 2: Held & Suarez, 101-200: aquaplanets & terraplanets
  INTEGER iflag_trac

END MODULE logic_mod