!WRF:MEDIATION_LAYER:INTERPOLATIONFUNCTION
!
#define MM5_SINT
!#define DUMBCOPY
SUBROUTINE interp_fcn ( cfld, & ! CD field 24,2
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width for interp
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj ) ! nest ratios
USE module_timing
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
! Local
!logical first
INTEGER ci, cj, ck, ni, nj, nk, ip, jp, ioff, joff, nioff, njoff
#ifdef MM5_SINT
INTEGER nfx, ior
PARAMETER (ior=2)
INTEGER nf
REAL psca(cims:cime,cjms:cjme,nri*nrj)
LOGICAL icmask( cims:cime, cjms:cjme )
INTEGER i,j,k
#endif
! Iterate over the ND tile and compute the values
! from the CD tile.
!write(0,'("cids:cide, ckds:ckde, cjds:cjde ",6i4)')cids,cide, ckds,ckde, cjds,cjde
!write(0,'("cims:cime, ckms:ckme, cjms:cjme ",6i4)')cims,cime, ckms,ckme, cjms,cjme
!write(0,'("cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'("nims:nime, nkms:nkme, njms:njme ",6i4)')nims,nime, nkms,nkme, njms,njme
!write(0,'("nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
#ifdef MM5_SINT
ioff = 0 ; joff = 0
nioff = 0 ; njoff = 0
IF ( xstag ) THEN
ioff = (nri-1)/2
nioff = nri
ENDIF
IF ( ystag ) THEN
joff = (nrj-1)/2
njoff = nrj
ENDIF
nfx = nri * nrj
DO k = ckts, ckte
icmask = .FALSE.
DO nf = 1,nfx
DO j = cjms,cjme
nj = (j-jpos) * nrj + 2 ! j point on nest
DO i = cims,cime
ni = (i-ipos) * nri + 2 ! i point on nest
if ( ni .ge. nits-nioff .and. ni .le. nite+nioff .and. nj .ge. njts-njoff .and. nj .le. njte+njoff ) then
if ( imask(ni,nj) .eq. 1 ) then
icmask( i, j ) = .TRUE.
endif
endif
psca(i,j,nf) = cfld(i,k,j)
ENDDO
ENDDO
ENDDO
! tile dims in this call to sint are 1-over to account for the fact
! that the number of cells on the nest local subdomain is not
! necessarily a multiple of the nest ratio in a given dim.
! this could be a little less ham-handed.
! need to modify sint so it respects mask and saves computation
!call start_timing
CALL sint( psca, &
cims, cime, cjms, cjme, icmask, &
cits-1, cite+1, cjts-1, cjte+1, nrj*nri, xstag, ystag )
!call end_timing( ' sint ' )
DO nj = njts, njte+joff
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj-1 , nrj ) ! coord of ND w/i CD point
nk = k
ck = nk
DO ni = nits, nite+ioff
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni-1 , nri ) ! coord of ND w/i CD point
if ( imask ( ni, nj ) .eq. 1 .or. imask ( ni-ioff, nj-joff ) .eq. 1 ) then
nfld( ni-ioff, nk, nj-joff ) = psca( ci , cj, ip+1 + (jp)*nri )
endif
ENDDO
ENDDO
ENDDO
#endif
#ifdef DUMBCOPY
!write(0,'(") cims:cime, ckms:ckme, cjms:cjme ",6i4)')cims,cime, ckms,ckme, cjms,cjme
!write(0,'(") nims:nime, nkms:nkme, njms:njme ",6i4)')nims,nime, nkms,nkme, njms,njme
!write(0,'(") cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'(") nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
! This is a trivial implementation of the interp_fcn; just copies
! the values from the CD into the ND
if ( imask ( ni, nj ) .eq. 1 ) then
nfld( ni, nk, nj ) = cfld( ci , ck , cj )
endif
ENDDO
ENDDO
ENDDO
#endif
RETURN
END SUBROUTINE interp_fcn
!==================================
! this is the default function used in feedback.
SUBROUTINE copy_fcn ( cfld, & ! CD field 12
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width for interp
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj ) ! nest ratios
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
! Local
INTEGER ci, cj, ck, ni, nj, nk, ip, jp, ioff, joff, ioffa, joffa
! Iterate over the ND tile and compute the values
! from the CD tile.
!write(0,'(") cims:cime, ckms:ckme, cjms:cjme ",6i4)')cims,cime, ckms,ckme, cjms,cjme
!write(0,'(") nims:nime, nkms:nkme, njms:njme ",6i4)')nims,nime, nkms,nkme, njms,njme
!write(0,'(") cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'(") nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
ioff = 0 ; joff = 0
ioffa = 0 ; joffa = 0
IF( mod(nri,2) .ne. 0) then ! odd refinement ratio
IF ( xstag ) ioff = (nri-1)/2
IF ( ystag ) joff = (nrj-1)/2
ELSE ! even refinement ratio
IF ( xstag ) then
ioff = (nri)/2
ioffa = 1
END IF
IF ( ystag ) then
joff = (nrj)/2
joffa = 1
END IF
END IF
IF( mod(nrj,2) .ne. 0) THEN ! odd refinement ratio
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
IF ((ip == nri/2 + 1 - ioff) .AND. (jp == nrj/2 + 1 - joff) ) THEN
! cfld( ci+shw, ck, cj+shw ) = nfld( ni , nk , nj )
! cfld( ci, ck, cj ) = nfld( ni , nk , nj )
cfld( ci, ck, cj ) = (1./9.)*( &
nfld( ni , nk , nj ) &
+nfld( ni-1, nk , nj ) &
+nfld( ni+1, nk , nj ) &
+nfld( ni , nk , nj-1) &
+nfld( ni-1, nk , nj-1) &
+nfld( ni+1, nk , nj-1) &
+nfld( ni , nk , nj+1) &
+nfld( ni-1, nk , nj+1) &
+nfld( ni+1, nk , nj+1) )
ENDIF
ENDDO
ENDDO
ENDDO
ELSE ! even refinement ratio
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
IF ((ip == nri/2 - ioff ) .AND. (jp == nrj/2 - joff ) ) THEN
! cfld( ci+shw, ck, cj+shw ) = nfld( ni , nk , nj )
cfld( ci, ck, cj ) = 0.25*( nfld( ni + ioffa , nk , nj + joffa ) + &
nfld( ni+1 , nk , nj + joffa ) + &
nfld( ni + ioffa , nk , nj+1 ) + &
nfld( ni+1 , nk , nj+1 ) )
ENDIF
ENDDO
ENDDO
ENDDO
END IF
RETURN
END SUBROUTINE copy_fcn
!==================================
SUBROUTINE bdy_interp ( cfld, & ! CD field 12,2
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj, & ! nest ratios
cdt, ndt, &
cbdy, nbdy, &
cbdy_t, nbdy_t &
) ! boundary arrays
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
REAL, DIMENSION( * ), INTENT(INOUT) :: cbdy, cbdy_t, nbdy, nbdy_t
REAL cdt, ndt
! Local
INTEGER nijds, nijde, spec_bdy_width
nijds = min(nids, njds)
nijde = max(nide, njde)
CALL get_spec_bdy_width( spec_bdy_width )
CALL bdy_interp1( cfld, & ! CD field
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nijds, nijde , spec_bdy_width , &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, imask, &
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj, &
cdt, ndt, &
cbdy, nbdy, &
cbdy_t, nbdy_t &
)
RETURN
END SUBROUTINE bdy_interp
SUBROUTINE bdy_interp1( cfld, & ! CD field 1,2
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nijds, nijde, spec_bdy_width , &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw1, &
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj, &
cdt, ndt, &
cbdy, bdy, &
cbdy_t, bdy_t &
)
use module_state_description
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw1, & ! ignore
ipos, jpos, &
nri, nrj
INTEGER, INTENT(IN) :: nijds, nijde, spec_bdy_width
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ), INTENT(INOUT) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ), INTENT(INOUT) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
REAL, DIMENSION ( * ), INTENT(INOUT) :: cbdy, cbdy_t ! not used
REAL :: cdt, ndt
REAL, DIMENSION ( nijds:nijde, nkms:nkme, spec_bdy_width, 4 ), INTENT(INOUT) :: bdy, bdy_t
! Local
REAL*8 rdt
INTEGER ci, cj, ck, ni, nj, nk, ni1, nj1, nk1, ip, jp, ioff, joff
#ifdef MM5_SINT
INTEGER nfx, ior
PARAMETER (ior=2)
INTEGER nf
REAL psca(cims:cime,cjms:cjme,nri*nrj)
LOGICAL icmask( cims:cime, cjms:cjme )
INTEGER i,j,k
#endif
INTEGER shw
rdt = 1.D0/cdt
shw = 0
ioff = 0 ; joff = 0
IF ( xstag ) ioff = (nri-1)/2
IF ( ystag ) joff = (nrj-1)/2
! Iterate over the ND tile and compute the values
! from the CD tile.
#ifdef MM5_SINT
nfx = nri * nrj
DO k = ckts, ckte
icmask = .FALSE.
DO nf = 1,nfx
DO j = cjms,cjme
nj = (j-jpos) * nrj + 2 ! j point on nest
DO i = cims,cime
ni = (i-ipos) * nri + 2 ! i point on nest
if ( ni .ge. nits .and. ni .le. nite .and. nj .ge. njts .and. nj .le. njte ) then
if ( imask(ni,nj) .eq. 1 ) then
icmask( i, j ) = .TRUE.
endif
endif
psca(i,j,nf) = cfld(i,k,j)
ENDDO
ENDDO
ENDDO
! tile dims in this call to sint are 1-over to account for the fact
! that the number of cells on the nest local subdomain is not
! necessarily a multiple of the nest ratio in a given dim.
! this could be a little less ham-handed.
CALL sint( psca, &
cims, cime, cjms, cjme, icmask, &
cits-1, cite+1, cjts-1, cjte+1, nrj*nri, xstag, ystag )
DO nj1 = njts, njte+joff
cj = jpos + (nj1-1) / nrj ! j coord of CD point
jp = mod ( nj1-1 , nrj ) ! coord of ND w/i CD point
nk = k
ck = nk
DO ni1 = nits, nite+ioff
ci = ipos + (ni1-1) / nri ! j coord of CD point
ip = mod ( ni1-1 , nri ) ! coord of ND w/i CD point
ni = ni1-ioff
nj = nj1-joff
IF ( ( ni.LT.nids) .OR. (nj.LT.njds) ) THEN
CYCLE
END IF
!bdy contains the value at t-dt. psca contains the value at t
!compute dv/dt and store in bdy_t
!afterwards store the new value of v at t into bdy
!question: how bdy gets set first time through?? isn't that stored in nfld right now?
!compute the derivative using that instead?
! how to get rdt down here??
IF ( ni .ge. nids .and. ni .lt. nids + spec_bdy_width ) THEN
bdy_t( nj,k,ni, P_XSB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( nj,k,ni, P_XSB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
IF ( nj .ge. njds .and. nj .lt. njds + spec_bdy_width ) THEN
bdy_t( ni,k,nj, P_YSB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( ni,k,nj, P_YSB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
IF ( xstag ) THEN
IF ( ni .le. nide .and. ni .ge. nide - spec_bdy_width + 1 ) THEN
bdy_t( nj,k,nide-ni+1, P_XEB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( nj,k,nide-ni+1, P_XEB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
ELSE
IF ( ni .le. nide-1 .and. ni .ge. nide - spec_bdy_width ) THEN
bdy_t( nj,k,nide-ni, P_XEB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( nj,k,nide-ni, P_XEB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
ENDIF
IF ( ystag ) THEN
IF ( nj .le. njde .and. nj .ge. njde - spec_bdy_width + 1 ) THEN
bdy_t(ni,k,njde-nj+1,P_YEB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( ni,k,njde-nj+1,P_YEB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
ELSE
IF ( nj .le. njde-1 .and. nj .ge. njde - spec_bdy_width ) THEN
bdy_t(ni,k,njde-nj,P_YEB ) = rdt*(psca(ci+shw,cj+shw,ip+1+(jp)*nri)-nfld(ni,k,nj))
bdy( ni,k,njde-nj,P_YEB ) = psca(ci+shw,cj+shw,ip+1+(jp)*nri )
ENDIF
ENDIF
ENDDO
ENDDO
ENDDO
#endif
#ifdef DUMBCOPY
!write(0,'("cims:cime, ckms:ckme, cjms:cjme ",6i4)')cims,cime, ckms,ckme, cjms,cjme
!write(0,'("nims:nime, nkms:nkme, njms:njme ",6i4)')nims,nime, nkms,nkme, njms,njme
!write(0,'("cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'("nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
! This is a trivial implementation of the interp_fcn; just copies
! the values from the CD into the ND
nfld( ni, nk, nj ) = cfld( ci , ck , cj )
ENDDO
ENDDO
ENDDO
#endif
RETURN
END SUBROUTINE bdy_interp1
SUBROUTINE interp_fcni( cfld, & ! CD field
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj ) ! nest ratios
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
INTEGER, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
INTEGER, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
! Local
INTEGER ci, cj, ck, ni, nj, nk, ip, jp
! Iterate over the ND tile and compute the values
! from the CD tile.
!write(0,'("cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'("nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
! This is a trivial implementation of the interp_fcn; just copies
! the values from the CD into the ND
nfld( ni, nk, nj ) = cfld( ci , ck , cj )
ENDDO
ENDDO
ENDDO
RETURN
END SUBROUTINE interp_fcni
SUBROUTINE interp_fcnm( cfld, & ! CD field
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj ) ! nest ratios
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
! Local
INTEGER ci, cj, ck, ni, nj, nk, ip, jp
! Iterate over the ND tile and compute the values
! from the CD tile.
!write(0,'("mask cits:cite, ckts:ckte, cjts:cjte ",6i4)')cits,cite, ckts,ckte, cjts,cjte
!write(0,'("mask nits:nite, nkts:nkte, njts:njte ",6i4)')nits,nite, nkts,nkte, njts,njte
DO nj = njts, njte
cj = jpos + (nj-1) / nrj ! j coord of CD point
jp = mod ( nj , nrj ) ! coord of ND w/i CD point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ipos + (ni-1) / nri ! j coord of CD point
ip = mod ( ni , nri ) ! coord of ND w/i CD point
! This is a trivial implementation of the interp_fcn; just copies
! the values from the CD into the ND
nfld( ni, nk, nj ) = cfld( ci , ck , cj )
ENDDO
ENDDO
ENDDO
RETURN
END SUBROUTINE interp_fcnm
SUBROUTINE interp_mask_land_field ( cfld, & ! CD field 13,5
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj, & ! nest ratios
clu, nlu )
USE module_wrf_error
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
REAL, DIMENSION ( cims:cime, cjms:cjme ) :: clu
REAL, DIMENSION ( nims:nime, njms:njme ) :: nlu
! Local
INTEGER ci, cj, ck, ni, nj, nk, ip, jp
INTEGER :: icount , ii , jj , ist , ien , jst , jen , iswater
REAL :: avg , sum , dx , dy
INTEGER , PARAMETER :: max_search = 5
CHARACTER*120 message
! Find out what the water value is.
CALL get_iswater(1,iswater)
! Right now, only mass point locations permitted.
IF ( ( .NOT. xstag) .AND. ( .NOT. ystag ) ) THEN
! Loop over each i,k,j in the nested domain.
DO nj = njts, njte
cj = ( nj + 1) / nrj + jpos -1 ! coarse position equal to or below nest point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ( ni + 1) / nri + ipos -1 ! coarse position equal to or to the left of nest point
!
! (ci,cj+1) (ci+1,cj+1)
! - -------------
! 1-dy | | |
! | | |
! - | * |
! dy | | (ni,nj) |
! | | |
! - -------------
! (ci,cj) (ci+1,cj)
!
! |--|--------|
! dx 1-dx
! At ni=2, we are on the coarse grid point, so dx = 0
dx = REAL ( MOD ( ni+1 , nri ) ) / REAL ( nri )
dy = REAL ( MOD ( nj+1 , nrj ) ) / REAL ( nrj )
! This is a "land only" field. If this is a water point, no operations required.
IF ( ( NINT(nlu(ni ,nj )) .EQ. iswater ) ) THEN
! noop
nfld(ni,nk,nj) = 1.e20
! If this is a nested land point, and the surrounding coarse values are all land points,
! then this is a simple 4-pt interpolation.
ELSE IF ( ( NINT(nlu(ni ,nj )) .NE. iswater ) .AND. &
( NINT(clu(ci ,cj )) .NE. iswater ) .AND. &
( NINT(clu(ci+1,cj )) .NE. iswater ) .AND. &
( NINT(clu(ci ,cj+1)) .NE. iswater ) .AND. &
( NINT(clu(ci+1,cj+1)) .NE. iswater ) ) THEN
nfld(ni,nk,nj) = ( 1. - dx ) * ( ( 1. - dy ) * cfld(ci ,ck,cj ) + &
dy * cfld(ci ,ck,cj+1) ) + &
dx * ( ( 1. - dy ) * cfld(ci+1,ck,cj ) + &
dy * cfld(ci+1,ck,cj+1) )
! If this is a nested land point and there are NO coarse land values surrounding,
! we temporarily punt.
ELSE IF ( ( NINT(nlu(ni ,nj )) .NE. iswater ) .AND. &
( NINT(clu(ci ,cj )) .EQ. iswater ) .AND. &
( NINT(clu(ci+1,cj )) .EQ. iswater ) .AND. &
( NINT(clu(ci ,cj+1)) .EQ. iswater ) .AND. &
( NINT(clu(ci+1,cj+1)) .EQ. iswater ) ) THEN
nfld(ni,nk,nj) = -1.e20
! If there are some water points and some land points, take an average.
ELSE IF ( NINT(nlu(ni ,nj )) .NE. iswater ) THEN
icount = 0
sum = 0
IF ( NINT(clu(ci ,cj )) .NE. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci ,ck,cj )
END IF
IF ( NINT(clu(ci+1,cj )) .NE. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci+1,ck,cj )
END IF
IF ( NINT(clu(ci ,cj+1)) .NE. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci ,ck,cj+1)
END IF
IF ( NINT(clu(ci+1,cj+1)) .NE. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci+1,ck,cj+1)
END IF
nfld(ni,nk,nj) = sum / REAL ( icount )
END IF
END DO
END DO
END DO
! Get an average of the whole domain for problem locations.
sum = 0
icount = 0
DO nj = njts, njte
DO nk = nkts, nkte
DO ni = nits, nite
IF ( ( nfld(ni,nk,nj) .GT. -1.e19 ) .AND. ( nfld(ni,nk,nj) .LT. 1.e19 ) ) THEN
icount = icount + 1
sum = sum + nfld(ni,nk,nj)
END IF
END DO
END DO
END DO
CALL wrf_dm_bcast_real( sum, 1 )
IF ( icount .GT. 0 ) THEN
avg = sum / REAL ( icount )
! OK, if there were any of those island situations, we try to search a bit broader
! of an area in the coarse grid.
DO nj = njts, njte
DO nk = nkts, nkte
DO ni = nits, nite
IF ( nfld(ni,nk,nj) .LT. -1.e19 ) THEN
cj = ( nj + 1) / nrj + jpos -1
ci = ( ni + 1) / nri + ipos -1
ist = MAX (ci-max_search,cits)
ien = MIN (ci+max_search,cite,cide-1)
jst = MAX (cj-max_search,cjts)
jen = MIN (cj+max_search,cjte,cjde-1)
icount = 0
sum = 0
DO jj = jst,jen
DO ii = ist,ien
IF ( NINT(clu(ii,jj)) .NE. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ii,nk,jj)
END IF
END DO
END DO
IF ( icount .GT. 0 ) THEN
nfld(ni,nk,nj) = sum / REAL ( icount )
ELSE
! CALL wrf_error_fatal ( "horizontal interp error - island" )
write(message,*) 'horizontal interp error - island, using average ', avg
CALL wrf_message ( message )
nfld(ni,nk,nj) = avg
END IF
END IF
END DO
END DO
END DO
ENDIF
ELSE
CALL wrf_error_fatal ( "only unstaggered fields right now" )
END IF
END SUBROUTINE interp_mask_land_field
SUBROUTINE interp_mask_water_field ( cfld, & ! CD field 2,3
cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nfld, & ! ND field
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, & ! stencil half width
imask, & ! interpolation mask
xstag, ystag, & ! staggering of field
ipos, jpos, & ! Position of lower left of nest in CD
nri, nrj, & ! nest ratios
clu, nlu )
USE module_wrf_error
IMPLICIT NONE
INTEGER, INTENT(IN) :: cids, cide, ckds, ckde, cjds, cjde, &
cims, cime, ckms, ckme, cjms, cjme, &
cits, cite, ckts, ckte, cjts, cjte, &
nids, nide, nkds, nkde, njds, njde, &
nims, nime, nkms, nkme, njms, njme, &
nits, nite, nkts, nkte, njts, njte, &
shw, &
ipos, jpos, &
nri, nrj
LOGICAL, INTENT(IN) :: xstag, ystag
REAL, DIMENSION ( cims:cime, ckms:ckme, cjms:cjme ) :: cfld
REAL, DIMENSION ( nims:nime, nkms:nkme, njms:njme ) :: nfld
INTEGER, DIMENSION ( nims:nime, njms:njme ) :: imask
REAL, DIMENSION ( cims:cime, cjms:cjme ) :: clu
REAL, DIMENSION ( nims:nime, njms:njme ) :: nlu
! Local
INTEGER ci, cj, ck, ni, nj, nk, ip, jp
INTEGER :: icount , ii , jj , ist , ien , jst , jen , iswater
REAL :: avg , sum , dx , dy
INTEGER , PARAMETER :: max_search = 5
! Find out what the water value is.
CALL get_iswater(1,iswater)
! Right now, only mass point locations permitted.
IF ( ( .NOT. xstag) .AND. ( .NOT. ystag ) ) THEN
! Loop over each i,k,j in the nested domain.
DO nj = njts, njte
cj = ( nj + 1) / nrj + jpos -1 ! coarse position equal to or below nest point
DO nk = nkts, nkte
ck = nk
DO ni = nits, nite
ci = ( ni + 1) / nri + ipos -1 ! coarse position equal to or to the left of nest point
!
! (ci,cj+1) (ci+1,cj+1)
! - -------------
! 1-dy | | |
! | | |
! - | * |
! dy | | (ni,nj) |
! | | |
! - -------------
! (ci,cj) (ci+1,cj)
!
! |--|--------|
! dx 1-dx
! At ni=2, we are on the coarse grid point, so dx = 0
dx = REAL ( MOD ( ni+1 , nri ) ) / REAL ( nri )
dy = REAL ( MOD ( nj+1 , nrj ) ) / REAL ( nrj )
! This is a "water only" field. If this is a land point, no operations required.
IF ( ( NINT(nlu(ni ,nj )) .NE. iswater ) ) THEN
! noop
nfld(ni,nk,nj) = 1.e20
! If this is a nested water point, and the surrounding coarse values are all water points,
! then this is a simple 4-pt interpolation.
ELSE IF ( ( NINT(nlu(ni ,nj )) .EQ. iswater ) .AND. &
( NINT(clu(ci ,cj )) .EQ. iswater ) .AND. &
( NINT(clu(ci+1,cj )) .EQ. iswater ) .AND. &
( NINT(clu(ci ,cj+1)) .EQ. iswater ) .AND. &
( NINT(clu(ci+1,cj+1)) .EQ. iswater ) ) THEN
nfld(ni,nk,nj) = ( 1. - dx ) * ( ( 1. - dy ) * cfld(ci ,ck,cj ) + &
dy * cfld(ci ,ck,cj+1) ) + &
dx * ( ( 1. - dy ) * cfld(ci+1,ck,cj ) + &
dy * cfld(ci+1,ck,cj+1) )
! If this is a nested water point and there are NO coarse water values surrounding,
! we temporarily punt.
ELSE IF ( ( NINT(nlu(ni ,nj )) .EQ. iswater ) .AND. &
( NINT(clu(ci ,cj )) .NE. iswater ) .AND. &
( NINT(clu(ci+1,cj )) .NE. iswater ) .AND. &
( NINT(clu(ci ,cj+1)) .NE. iswater ) .AND. &
( NINT(clu(ci+1,cj+1)) .NE. iswater ) ) THEN
nfld(ni,nk,nj) = -1.e20
! If there are some land points and some water points, take an average.
ELSE IF ( NINT(nlu(ni ,nj )) .EQ. iswater ) THEN
icount = 0
sum = 0
IF ( NINT(clu(ci ,cj )) .EQ. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci ,ck,cj )
END IF
IF ( NINT(clu(ci+1,cj )) .EQ. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci+1,ck,cj )
END IF
IF ( NINT(clu(ci ,cj+1)) .EQ. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci ,ck,cj+1)
END IF
IF ( NINT(clu(ci+1,cj+1)) .EQ. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ci+1,ck,cj+1)
END IF
nfld(ni,nk,nj) = sum / REAL ( icount )
END IF
END DO
END DO
END DO
! Get an average of the whole domain for problem locations.
sum = 0
icount = 0
DO nj = njts, njte
DO nk = nkts, nkte
DO ni = nits, nite
IF ( ( nfld(ni,nk,nj) .GT. -1.e19 ) .AND. ( nfld(ni,nk,nj) .LT. 1.e19 ) ) THEN
icount = icount + 1
sum = sum + nfld(ni,nk,nj)
END IF
END DO
END DO
END DO
avg = sum / REAL ( icount )
! OK, if there were any of those lake situations, we try to search a bit broader
! of an area in the coarse grid.
DO nj = njts, njte
DO nk = nkts, nkte
DO ni = nits, nite
IF ( nfld(ni,nk,nj) .LT. -1.e19 ) THEN
cj = ( nj + 1) / nrj + jpos -1
ci = ( ni + 1) / nri + ipos -1
ist = MAX (ci-max_search,cits)
ien = MIN (ci+max_search,cite,cide-1)
jst = MAX (cj-max_search,cjts)
jen = MIN (cj+max_search,cjte,cjde-1)
icount = 0
sum = 0
DO jj = jst,jen
DO ii = ist,ien
IF ( NINT(clu(ii,jj)) .EQ. iswater ) THEN
icount = icount + 1
sum = sum + cfld(ii,nk,jj)
END IF
END DO
END DO
IF ( icount .GT. 0 ) THEN
nfld(ni,nk,nj) = sum / REAL ( icount )
ELSE
! CALL wrf_error_fatal ( "horizontal interp error - lake" )
print *,'horizontal interp error - lake, using average ',avg
nfld(ni,nk,nj) = avg
END IF
END IF
END DO
END DO
END DO
ELSE
CALL wrf_error_fatal ( "only unstaggered fields right now" )
END IF
END SUBROUTINE interp_mask_water_field
SUBROUTINE none
END SUBROUTINE none