!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE UPDEXBC ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE updexbc(mptr,iexbcbuf) 1,12
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Interpolate the external boundary data from base grid to grid mptr
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yuhe Liu
! 04/15/1997
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT :
!
! mptr Grid ID number
!
! iexbcbuf Pointer that points to the location of external
! boundary data for base grid.
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
!
!-----------------------------------------------------------------------
!
! Include files:
!
!-----------------------------------------------------------------------
!
INCLUDE 'nodal.inc'
INCLUDE 'agrigrid.inc'
INCLUDE 'agrialloc.inc'
INCLUDE 'grddsc.inc'
INCLUDE 'agricst.inc'
INCLUDE 'globcst.inc'
INCLUDE 'exbc.inc'
!
!-----------------------------------------------------------------------
!
! Misc. local variables:
!
!-----------------------------------------------------------------------
!
INTEGER :: lisvar(22)
INTEGER :: mptr, iexbcbuf
INTEGER :: nxs,nys,nzs, nxys, nxyzs
INTEGER :: nx,ny,nz, nxy,nxyz
INTEGER :: i,j,k,ijk
INTEGER :: iu0exbc,iv0exbc,iw0exbc,ipt0exbc
INTEGER :: iudtexbc,ivdtexbc,iwdtexbc,iptdtexbc
INTEGER :: iuexbc,ivexbc,iwexbc,iptexbc
INTEGER :: iptr1,iptr2,iptr3,iptr4,iptr5,iptr6
INTEGER :: item3d,nwhts
REAL :: delta_t
!
!-----------------------------------------------------------------------
!
! Functions
!
!-----------------------------------------------------------------------
!
INTEGER :: igetsp,igtexbc
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
IF( intrpodr == 2 ) THEN
nwhts=9
ELSE
nwhts=4
END IF
nxs=node(5,1)
nys=node(6,1)
nzs=node(14,1)
nx=node(5,mptr)
ny=node(6,mptr)
nz=node(14,mptr)
nxy =nx*ny
nxyz=nxy*nz
nxys =nxs*nys
nxyzs=nxys*nzs
iptr1=igetsp(2*nxy)
iptr2=igetsp(2*nxy)
iptr3=igetsp(2*nxy)
iptr4=igetsp(nxy)
iptr5=igetsp(nwhts*nxy)
iptr6=igetsp(2*nxy)
item3d = igetsp( nxyzs )
delta_t = curtim - ( abstfcst0 - abstinit )
!
!-----------------------------------------------------------------------
!
! Interpolate uexbc
!
!-----------------------------------------------------------------------
!
iu0exbc = igtexbc(1,1,1)
iudtexbc = igtexbc(1,12,1)
DO k=1,nzs-1
DO j=1,nys-1
DO i=1,nxs
ijk = (k-1)*nxs*nys + (j-1)*nxs + i
a(item3d+ijk-1) = a(iu0exbc+ijk-1) + a(iudtexbc+ijk-1)*delta_t
END DO
END DO
END DO
iuexbc = iexbcbuf
lisvar(1) = 1
CALL itpnexbc
(mptr,lisvar,1,item3d,iuexbc, &
a(iptr1),a(iptr2),a(iptr3), &
a(iptr4),a(iptr5),a(iptr6),nxy,nwhts)
!
!-----------------------------------------------------------------------
!
! Interpolate vexbc
!
!-----------------------------------------------------------------------
!
iv0exbc = igtexbc(1,2,1)
ivdtexbc = igtexbc(1,13,1)
DO k=1,nzs-1
DO j=1,nys
DO i=1,nxs-1
ijk = (k-1)*nxs*nys + (j-1)*nxs + i
a(item3d+ijk-1) = a(iv0exbc+ijk-1) + a(ivdtexbc+ijk-1)*delta_t
END DO
END DO
END DO
ivexbc = iexbcbuf + 1*nxyz
lisvar(1) = 2
CALL itpnexbc(mptr,lisvar,1,item3d,ivexbc, &
a(iptr1),a(iptr2),a(iptr3), &
a(iptr4),a(iptr5),a(iptr6),nxy,nwhts)
!
!-----------------------------------------------------------------------
!
! Interpolate wexbc
!
!-----------------------------------------------------------------------
!
iw0exbc = igtexbc(1,3,1)
iwdtexbc = igtexbc(1,14,1)
DO k=1,nzs
DO j=1,nys-1
DO i=1,nxs-1
ijk = (k-1)*nxs*nys + (j-1)*nxs + i
a(item3d+ijk-1) = a(iw0exbc+ijk-1) + a(iwdtexbc+ijk-1)*delta_t
END DO
END DO
END DO
iwexbc = iexbcbuf + 2*nxyz
lisvar(1) = 3
CALL itpnexbc(mptr,lisvar,1,item3d,iwexbc, &
a(iptr1),a(iptr2),a(iptr3), &
a(iptr4),a(iptr5),a(iptr6),nxy,nwhts)
!
!-----------------------------------------------------------------------
!
! Interpolate scalar ptexbc.
!
!-----------------------------------------------------------------------
!
ipt0exbc = igtexbc(1,4,1)
iptdtexbc = igtexbc(1,15,1)
DO k=1,nzs-1
DO j=1,nys-1
DO i=1,nxs-1
ijk = (k-1)*nxs*nys + (j-1)*nxs + i
a(item3d+ijk-1) = a(ipt0exbc+ijk-1)+a(iptdtexbc+ijk-1)*delta_t
END DO
END DO
END DO
iptexbc = iexbcbuf + 3*nxyz
lisvar(1) = 4
CALL itpnexbc(mptr,lisvar,1,item3d,iptexbc, &
a(iptr1),a(iptr2),a(iptr3), &
a(iptr4),a(iptr5),a(iptr6),nxy,nwhts)
CALL retexbc(1,1,1,iu0exbc, .true.)
CALL retexbc(1,2,1,iv0exbc, .true.)
CALL retexbc(1,3,1,iw0exbc, .true.)
CALL retexbc(1,4,1,ipt0exbc, .true.)
CALL retexbc(1,12,1,iudtexbc, .true.)
CALL retexbc(1,13,1,ivdtexbc, .true.)
CALL retexbc(1,14,1,iwdtexbc, .true.)
CALL retexbc(1,15,1,iptdtexbc,.true.)
RETURN
END SUBROUTINE updexbc
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE ITPNEXBC ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE itpnexbc(mrec,lisvar,nvar,isptr,irptr, & 4,3
pts,irec,isrc,igsrc,whts,pts1,nptrec,nwhts)
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! Interpolate the external boundary data from base grid to grid mrec
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yuhe Liu
! 04/15/1997
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INTEGER :: mrec,nptrec,nwhts
INTEGER :: isptr,irptr, nvar
INTEGER :: irec(2,nptrec),isrc(2,nptrec),igsrc(nptrec)
INTEGER :: lisvar(nvar)
REAL :: pts(2,nptrec),whts(nwhts,nptrec),pts1(2,nptrec)
INTEGER :: nxr,nyr,nzr
INTEGER :: nxs,nys,nzs
INTEGER :: nx1,ny1
INTEGER :: ist,jst,iend,jend
INTEGER :: ivar
INTEGER :: nw1,nw2
INTEGER :: numpts,npts0
INTEGER :: n3rd
INTEGER :: ierfl,iptcmp
INTEGER :: i,ii,j,jj, ip
REAL :: cosr,sinr
REAL :: x,y,xc,yc,xs,ys
REAL :: xor,yor,xorp,yorp
REAL :: dxr,dyr
REAL :: xshift,yshift
!
!-----------------------------------------------------------------------
!
! Include files:
!
!-----------------------------------------------------------------------
!
INCLUDE 'nodal.inc'
INCLUDE 'agrigrid.inc'
INCLUDE 'agrialloc.inc'
INCLUDE 'grddsc.inc'
INCLUDE 'agricst.inc'
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
nw1=nint( SQRT(FLOAT(nwhts)) )
nw2=nw1
IF(nvar == 0) RETURN
nxr=node(5,mrec)
nyr=node(6,mrec)
nzr=node(14,mrec)
nxs=node(5,1)
nys=node(6,1)
nzs=node(14,1)
cosr=rnode(21,mrec)
sinr=rnode(22,mrec)
dxr=rnode(9 ,mrec)
dyr=rnode(10,mrec)
xor=rnode(1,mrec)
yor=rnode(2,mrec)
ivar=lisvar(1)
xshift=stgexbc(1,ivar)
yshift=stgexbc(2,ivar)
nx1=nxr-idmexbc(1,ivar)
ny1=nyr-idmexbc(2,ivar)
xc=xshift*dxr*cosr
ys=yshift*dyr*sinr
xs=xshift*dxr*sinr
yc=yshift*dyr*cosr
xorp=xor+xc-ys
yorp=yor+xs+yc
!
! To calculate the absolute coordinates of all grid points including
! boundary and interior.
!
ist=1
jst=1
iend=nx1
jend=ny1
DO j=jst,jend
jj=(j-jst)*(iend-ist+1)
DO i=ist,iend
ii=jj+i-ist+1
x=(i-1)*dxr
y=(j-1)*dyr
pts (1,ii) = xorp+x*cosr-y*sinr
pts (2,ii) = yorp+x*sinr+y*cosr
irec(1,ii) = i
irec(2,ii) = j
END DO
END DO
numpts=(iend-ist+1)*(jend-jst+1)
npts0=numpts
!
! Find the source points for receive grid points pts
!
ierfl=0
iptcmp=1
CALL getsrc(mrec,1, 1 ,xshift,yshift,pts,numpts, &
irec,igsrc,ierfl,iptcmp)
IF( (numpts /= npts0) .AND. verbose6 ) THEN
WRITE(6,'('' WARNING: IN INTNSL,'',I4,'' POINTS ON GRID '',I4, &
& '' got no source from source grid '',i4)') &
npts0-numpts, mrec, 1
WRITE(6,'('' IT WAS FOR EXBC VARIABLE NO. '',I4)') ivar
END IF
!
! Calculate weights of interpolation for points pts.
!
DO ip=1,numpts
pts1(1,ip)=pts(1,ip)
pts1(2,ip)=pts(2,ip)
END DO
CALL calwht_exbc(mrec,pts1,isrc,whts,numpts,nwhts,ivar)
!
! Interpolate for variables in list lisvar from source grid MSRC
! to receive grid MREC.
!
DO i=1,nvar
ivar=lisvar(i)
n3rd=nzs
CALL intrps(a(irptr),a(isptr),nxr,nyr,nxs,nys,n3rd, &
irec,isrc,whts,numpts,nw1,nw2)
END DO
500 CONTINUE
RETURN
END SUBROUTINE itpnexbc
!
!##################################################################
!##################################################################
!###### ######
!###### SUBROUTINE CALWHT_EXBC ######
!###### ######
!###### Developed by ######
!###### Center for Analysis and Prediction of Storms ######
!###### University of Oklahoma ######
!###### ######
!##################################################################
!##################################################################
!
SUBROUTINE calwht_exbc(mrec,points,isrc,whts,numpts,nwhts,ivar) 1
!
!-----------------------------------------------------------------------
!
! PURPOSE:
!
! this routine calculates the weights for the interpolation
! of mass points or vertical velocity (stuff that doesn't need
! any rotation from base grid to grid mrec
!
! if nw = 4 bilinear interp., = 9 bi-quadratic
!
!-----------------------------------------------------------------------
!
! AUTHOR: Yuhe Liu
! 04/15/1997
!
! MODIFICATION HISTORY:
!
!-----------------------------------------------------------------------
!
! INPUT :
!
! mrec Grid ID number
!
!-----------------------------------------------------------------------
!
IMPLICIT NONE
INTEGER :: mrec
INTEGER :: numpts,nwhts
INTEGER :: isrc(2,numpts)
REAL :: points(2,numpts),whts(nwhts,numpts)
REAL :: xshift,yshift, yp
REAL :: alpha,alpha2
REAL :: tempx1,tempx2,tempx3
REAL :: tempy1,tempy2,tempy3
INTEGER :: i,ivar
!
!-----------------------------------------------------------------------
!
! Include files:
!
!-----------------------------------------------------------------------
!
INCLUDE 'nodal.inc'
INCLUDE 'agrigrid.inc'
INCLUDE 'agrialloc.inc'
INCLUDE 'grddsc.inc'
!
!-----------------------------------------------------------------------
!
! Misc. local variables:
!
!-----------------------------------------------------------------------
!
REAL :: cosc,sinc
REAL :: dxc,dyc
REAL :: odxc,odyc
REAL :: xor,yor,xorp,yorp
REAL :: xc,xs,yc,ys,x,y
!
!-----------------------------------------------------------------------
!
! Functions
!
!-----------------------------------------------------------------------
!
REAL :: fq, fl
REAL :: xp,x1,x2,x3,x4
fq(xp,x1,x2,x3,x4)=(xp-x2)*(xp-x3)/((x1-x2)*(x1-x3))+x4
fl(xp,x1,x2)=(xp-x2)/(x1-x2)
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
! Beginning of executable code...
!
!@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
!
cosc = rnode( 21,1)
sinc = rnode( 22,1)
dxc = rnode(9,1)
dyc = rnode(10,1)
odxc = 1./dxc
odyc = 1./dyc
xor = rnode(1,1)
yor = rnode(2,1)
xshift=stgexbc(1,ivar)
yshift=stgexbc(2,ivar)
xc=xshift*dxc*cosc
ys=yshift*dyc*sinc
xs=xshift*dxc*sinc
yc=yshift*dyc*cosc
xorp=xor+xc-ys
yorp=yor+xs+yc
DO i=1,numpts
x=points(1,i)
y=points(2,i)
points(1,i)=1+( cosc*(x-xorp)+sinc*(y-yorp))*odxc
points(2,i)=1+(-sinc*(x-xorp)+cosc*(y-yorp))*odyc
END DO
!
! next, calculate weights for the interpolation
!
IF ( nwhts == 9 ) THEN
alpha=0.
alpha2=0.
DO i=1,numpts
xp=points(1,i)-FLOAT( nint(points(1,i)) )
yp=points(2,i)-FLOAT( nint(points(2,i)) )
tempy1=fq(yp,-1.,0.,1.,alpha)
tempy2=fq(yp,0.,-1.,1.,alpha2)
tempy3=fq(yp,1.,-1.,0.,alpha)
tempx1=fq(xp,-1.,0.,1.,alpha)
tempx2=fq(xp,0.,-1.,1.,alpha2)
tempx3=fq(xp,1.,-1.,0.,alpha)
whts(1,i)=tempy1*tempx1
whts(2,i)=tempy1*tempx2
whts(3,i)=tempy1*tempx3
whts(4,i)=tempy2*tempx1
whts(5,i)=tempy2*tempx2
whts(6,i)=tempy2*tempx3
whts(7,i)=tempy3*tempx1
whts(8,i)=tempy3*tempx2
whts(9,i)=tempy3*tempx3
isrc(1,i)=nint(points(1,i))
isrc(2,i)=nint(points(2,i))
END DO
ELSE
DO i=1,numpts
xp=points(1,i)-FLOAT( INT(points(1,i)) )
yp=points(2,i)-FLOAT( INT(points(2,i)) )
tempy1=fl(yp,0.,1.)
tempy2=fl(yp,1.,0.)
tempx1=fl(xp,0.,1.)
tempx2=fl(xp,1.,0.)
whts(1,i)=tempy1*tempx1
whts(2,i)=tempy1*tempx2
whts(3,i)=tempy2*tempx1
whts(4,i)=tempy2*tempx2
isrc(1,i)=INT(points(1,i))
isrc(2,i)=INT(points(2,i))
END DO
END IF
RETURN
END SUBROUTINE calwht_exbc