ana_cloud.h

Go to the documentation of this file.

!!
      SUBROUTINE ana_cloud (ng, tile, model)
!
!! git $Id$
!!======================================================================
!! Copyright (c) 2002-2025 The ROMS Group                              !
!!   Licensed under a MIT/X style license                              !
!!   See License_ROMS.md                                               !
!=======================================================================
!                                                                      !
!  This routine sets cloud fraction using an analytical expression.    !
!                                                                      !
!=======================================================================
!
      USE mod_param
      USE mod_forces
      USE mod_ncparam
!
! Imported variable declarations.
!
      integer, intent(in) :: ng, tile, model
!
! Local variable declarations.
!
      character (len=*), parameter :: MyFile =                          &
     &  __FILE__
!
#include "tile.h"
!
      CALL ana_cloud_tile (ng, tile, model,                             &
     &                     lbi, ubi, lbj, ubj,                          &
     &                     imins, imaxs, jmins, jmaxs,                  &
     &                     forces(ng) % cloud)
!
! Set analytical header file name used.
!
#ifdef DISTRIBUTE
      IF (lanafile) THEN
#else
      IF (lanafile.and.(tile.eq.0)) THEN
#endif
        ananame( 4)=myfile
      END IF
!
      RETURN
      END SUBROUTINE ana_cloud
!
!***********************************************************************
      SUBROUTINE ana_cloud_tile (ng, tile, model,                       &
     &                           LBi, UBi, LBj, UBj,                    &
     &                           IminS, ImaxS, JminS, JmaxS,            &
     &                           cloud)
!***********************************************************************
!
      USE mod_param
      USE mod_scalars
!
#ifdef PAPA_CLM
      USE dateclock_mod,   ONLY : caldate
#endif
      USE exchange_2d_mod, ONLY : exchange_r2d_tile
#ifdef DISTRIBUTE
      USE mp_exchange_mod, ONLY : mp_exchange2d
#endif
!
!  Imported variable declarations.
!
      integer, intent(in) :: ng, tile, model
      integer, intent(in) :: LBi, UBi, LBj, UBj
      integer, intent(in) :: IminS, ImaxS, JminS, JmaxS
!
#ifdef ASSUMED_SHAPE
      real(r8), intent(out) :: cloud(LBi:,LBj:)
#else
      real(r8), intent(out) :: cloud(LBi:UBi,LBj:UBj)
#endif
!
!  Local variable declarations.
!
      integer  :: i, j
!
      real(r8) :: Cval
      real(dp) :: yday
 
#ifdef PAPA_CLM
!
      real(dp), dimension(14) :: Coktas =                               &
     &         (/ 6.29_r8, 6.26_r8, 6.31_r8, 6.31_r8, 6.32_r8,          &
     &            6.70_r8, 7.12_r8, 7.26_r8, 6.93_r8, 6.25_r8,          &
     &            6.19_r8, 6.23_r8, 6.31_r8, 6.29_r8          /)
 
      real(dp), dimension(14) :: Cyday =                                &
     &          (/  0.0_dp,  16.0_dp,  46.0_dp,  75.0_dp, 105.0_dp,     &
     &            136.0_dp, 166.0_dp, 197.0_dp, 228.0_dp, 258.0_dp,     &
     &            289.0_dp, 319.0_dp, 350.0_dp, 365.0_dp           /)
#endif
 
#include "set_bounds.h"
!
!-----------------------------------------------------------------------
!  Set analytical cloud fraction (%/100): 0=clear sky, 1:overcast sky.
!-----------------------------------------------------------------------
!
#if defined PAPA_CLM
 
!  OWS Papa cloud climatology.
!
      CALL caldate (tdays(ng), yd_dp=yday)
      DO i=1,13
        IF ((yday.ge.cyday(i)).and.(yday.le.cyday(i+1))) THEN
          cval=0.125_r8*(coktas(i  )*(cyday(i+1)-yday)+                 &
     &                   coktas(i+1)*(yday-cyday(i)))/                  &
     &                  (cyday(i+1)-cyday(i))
        END IF
      END DO
#elif defined BENCHMARK
      cval=0.6_r8
#elif defined NJ_BIGHT
      cval=0.3_r8
#else
      cval=0.0_r8
#endif
 
      DO j=jstrt,jendt
        DO i=istrt,iendt
          cloud(i,j)=cval
        END DO
      END DO
!
!  Exchange boundary data.
!
      IF (ewperiodic(ng).or.nsperiodic(ng)) THEN
        CALL exchange_r2d_tile (ng, tile,                               &
     &                          lbi, ubi, lbj, ubj,                     &
     &                          cloud)
      END IF
 
#ifdef DISTRIBUTE
      CALL mp_exchange2d (ng, tile, model, 1,                           &
     &                    lbi, ubi, lbj, ubj,                           &
     &                    nghostpoints,                                 &
     &                    ewperiodic(ng), nsperiodic(ng),               &
     &                    cloud)
#endif
!
      RETURN
      END SUBROUTINE ana_cloud_tile