c
c=======================================================================
c  Include file "filtdat.h"
c=======================================================================
c
#ifndef rmdocinc
c  ICNTP    transport: counter for Shapiro filter applications.
c  ICNTT    tracers: counter for Shapiro filter applications.
c  ICNTV    velocity: counter for Shapiro filter applications.
c  ICNTZ    vorticity: counter for Shapiro filter applications.
c  MIXTRC   tracers horizontal mixing scheme:
c           [1] Shapiro filter,
c           [2] Laplacian at constant depths,
c           [3] Laplacian along terrain following levels.
c  MIXVEL   momentum equation horizontal mixing scheme:
c           [1] Shapiro filter,
c           [2] Laplacian at constant depths,
c           [3] Laplacian along terrain following levels.
c  MIXZTD   mixing scheme for the rate of change vorticity (ZTD):
c           [1] Shapiro filter,
c           [2] Laplacian.
c  NFRQP    transport: number of timesteps between filter applications.
c  NFRQT    tracers: number of timesteps between filter applications.
c  NFRQV    velocity: number of timesteps between filter applications.
c  NFRQZ    vorticity: number of timesteps between filter applications.
c  NORDP    transport: order of the Shapiro filter.
c  NORDT    tracers: order of the Shapiro filter.
c  NORDV    velocity: order of the Shapiro filter.
c  NORDZ    vorticity: order of the Shapiro filter.
c  NTIMP    transport: number of times to apply the Shapiro filter.
c  NTIMT    tracers: number of times to apply the Shapiro filter.
c  NTIMV    velocity: number of times to apply the Shapiro filter.
c  NTIMZ    vorticity: number of times to apply the Shapiro filter.
c
c=======================================================================
c
#endif
      common /ifiltdat/ mixvel,mixtrc,mixztd,nordv,ntimv,nfrqv,icntv,
     *       nordt,ntimt,nfrqt,icntt,nordz,ntimz,nfrqz,icntz,nordp,
     *       ntimp,nfrqp,icntp
      integer icntp,icntt,icntv,icntz,mixtrc,mixvel,mixztd,nfrqp,nfrqt,
     *        nfrqv,nfrqz,nordp,nordt,nordv,nordz,ntimp,ntimt,ntimv,
     *        ntimz