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michaesp |
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PROGRAM inv_prep
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c ********************************************************************************
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c * CALCULATE REFERENCE PROFILE, CORIOLIS PARAMETER AND GRID PARAMETERS *
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c * Rene Fehlmann 1994 / Code re-organization: Michael Sprenger, 2006 *
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c ********************************************************************************
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c --------------------------------------------------------------------------------
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c Declaration of variables, parameters, externals and common blocks
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c --------------------------------------------------------------------------------
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implicit none
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c Input and output file
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character*80 pvsrcfile,referfile
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integer mode
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real radius
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c Grid parameters
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integer nx,ny,nz
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real xmin,ymin,zmin,xmax,ymax,zmax
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real dx,dy,dz
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real mdv
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c Reference state
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real, allocatable,dimension (:) :: nsqref
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real, allocatable,dimension (:) :: thetaref
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real, allocatable,dimension (:) :: rhoref
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real, allocatable,dimension (:) :: pressref
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real, allocatable,dimension (:) :: zref
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real pressn,thetan
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c 3d fields for calculation of reference profile
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real,allocatable,dimension (:,:,:) :: th,rho,nsq,p,z
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c 2d weight for mean
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real,allocatable,dimension (:,:) :: weight
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c Auxiliary variables
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integer i,j,k
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integer stat
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integer jj,kk
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character*80 varname
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integer istep
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real sum,max,min
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integer cnt,nmd
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integer step
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integer i0,j0
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real lon0,lat0,lon1,lat1,dist
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integer vardim(4),ndim,cdfid,ierr
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real varmin(4),varmax(4),stag(4)
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real mdv
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character*80 name
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c Externals
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real sdis
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external sdis
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c --------------------------------------------------------------------------------
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c Input
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c --------------------------------------------------------------------------------
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print*,'********************************************************'
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print*,'* ref_grid *'
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print*,'********************************************************'
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c Read parameter file
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open(10,file='fort.10')
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read(10,*) pvsrcfile
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read(10,*) referfile
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read(10,*) name,radius
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if ( trim(name).ne.'REF_R') stop
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close(10)
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print*
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print*,trim(pvsrcfile)
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print*,trim(referfile)
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print*,radius
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print*
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c Get lat/lon gid parameters from input file
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call read_dim (nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv,
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> pvsrcfile)
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print*,'Read_Dim: nx,ny,nz = ',nx,ny,nz
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print*,' dx,dy,dz = ',dx,dy,dz
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print*,' xmin,ymin,zmin = ',xmin,ymin,zmin
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print*,' mdv = ',mdv
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print*
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xmax = xmin + real(nx-1) * dx
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ymax = ymin + real(ny-1) * dy
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c Count from 0, not from 1: consistent with <inv_cart.f>.
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nx=nx-1
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ny=ny-1
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nz=nz-1
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c Allocate memory for reference profile
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allocate(rhoref (0:2*nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating rhoref'
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allocate(pressref(0:2*nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating pressref'
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allocate(thetaref(0:2*nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating thetaref'
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allocate(nsqref (0:2*nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating nsqref'
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allocate(zref (0:2*nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating zref'
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c Allocate memory for calculatation of reference profile
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allocate(th (0:nx,0:ny,0:nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating th'
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allocate(rho(0:nx,0:ny,0:nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating rho'
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allocate(p (0:nx,0:ny,0:nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating p'
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allocate(nsq(0:nx,0:ny,0:nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating nsq'
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allocate(z(0:nx,0:ny,0:nz),STAT=stat)
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if (stat.ne.0) print*,'error allocating z'
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c Allocate memory for weight
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allocate(weight(0:nx,0:ny),STAT=stat)
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if (stat.ne.0) print*,'error allocating weight'
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c --------------------------------------------------------------------------------
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c Calculate the reference profile and put it onto netcdf file
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c --------------------------------------------------------------------------------
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c Read data from file
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varname='TH'
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call read_inp (th,varname,pvsrcfile,
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> nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv)
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varname='RHO'
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call read_inp (rho,varname,pvsrcfile,
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> nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv)
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varname='NSQ'
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call read_inp (nsq,varname,pvsrcfile,
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> nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv)
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varname='P'
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call read_inp (p,varname,pvsrcfile,
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> nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv)
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c Init the height field (not really necessary, but code becomes more symmetrical)
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do i=0,nx
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do j=0,ny
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do k=0,nz
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z(i,j,k)=zmin+real(k)*dz
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enddo
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enddo
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enddo
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c Define the weight
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if ( radius.lt.0 ) then
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do i=0,nx
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do j=0,ny
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weight(i,j) = 1.
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enddo
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enddo
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else
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i0 = nx/2
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j0 = ny/2
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lon0 = xmin + real(i0-1) * dx
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lat0 = ymin + real(j0-1) * dy
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weight(i0,j0)=1.
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do i=0,nx
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do j=0,ny
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lon1 = xmin + real(i-1) * dx
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lat1 = ymin + real(j-1) * dy
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dist = sdis(lon0,lat0,lon1,lat1)
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if ( dist.lt.radius ) then
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weight(i,j) = 1.
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else
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weight(i,j) = 0.
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endif
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enddo
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enddo
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endif
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c Determine the reference profile (mean over domain, split levels and layers)
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call mean(zref, z, nx,ny,nz,mdv,weight)
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call mean(nsqref, nsq,nx,ny,nz,mdv,weight)
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call mean(rhoref, rho,nx,ny,nz,mdv,weight)
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call mean(thetaref,th, nx,ny,nz,mdv,weight)
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call mean(pressref,p, nx,ny,nz,mdv,weight)
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c Write reference file to netcdf file
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call write_ref (nsqref,rhoref,thetaref,pressref,zref,
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> nz,referfile)
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c Write some info
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print*
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print*,'Ref: z p rho nsq theta'
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step=2*nz/10
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if (step.lt.1) step=1
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do k=0,2*nz,step
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write(*,'(8x,f10.1,2f10.2,f10.6,f10.2)')
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> zref(k),pressref(k),rhoref(k),nsqref(k),thetaref(k)
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enddo
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print*
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c Write weighht to REF file
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call cdfwopn(trim(referfile),cdfid,ierr)
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varname='WEIGHT'
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vardim(1)=nx+1
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vardim(2)=ny+1
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vardim(3)=1
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vardim(4)=1
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varmin(1)=xmin
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varmin(2)=ymin
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varmin(3)=0.
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varmax(1)=xmax
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varmax(2)=ymax
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varmax(3)=0.
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ndim=3
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mdv=-999.
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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call putdat(cdfid,varname,0.,1,weight,ierr)
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c --------------------------------------------------------------------------------
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c Format specifications
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c --------------------------------------------------------------------------------
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111 format (5f20.9)
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106 format (2f20.9)
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end
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c --------------------------------------------------------------------------
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c Spherical distance between lat/lon points
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c --------------------------------------------------------------------------
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real function sdis(xp,yp,xq,yq)
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c
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c calculates spherical distance (in km) between two points given
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c by their spherical coordinates (xp,yp) and (xq,yq), respectively.
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c
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real re
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parameter (re=6370.)
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real pi180
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parameter (pi180=3.14159/180.)
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real xp,yp,xq,yq,arg
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arg=sin(pi180*yp)*sin(pi180*yq)+
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> cos(pi180*yp)*cos(pi180*yq)*cos(pi180*(xp-xq))
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if (arg.lt.-1.) arg=-1.
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if (arg.gt.1.) arg=1.
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sdis=re*acos(arg)
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end
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c ********************************************************************************
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c * NETCDF INPUT AND OUTPUT *
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c ********************************************************************************
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c --------------------------------------------------------------------------------
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c Write reference file to netcdf
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c --------------------------------------------------------------------------------
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SUBROUTINE write_ref (nsqref,rhoref,thetaref,pressref,zref,
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> nz,pvsrcfile)
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c Write the reference profile to file
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c
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c thetaref : Reference potential temperature (K)
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c pressref : Reference pressure (Pa)
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c rhoref : Reference density (kg/m^3)
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c nsqref : Stratification (s^-1)
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c zref : Reference height (m)
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c nz : Grid dimension in z direction
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c pvsrcfile : Output file
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implicit none
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c Declaration of subroutine parameters
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integer nx,ny,nz
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real nsqref (0:2*nz)
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real thetaref(0:2*nz)
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280 |
real rhoref (0:2*nz)
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281 |
real pressref(0:2*nz)
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real zref (0:2*nz)
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character*80 pvsrcfile
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c Numerical and physical parameters
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real eps
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parameter (eps=0.01)
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288 |
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c Auxiliary variables
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290 |
integer cdfid,stat
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integer vardim(4)
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real misdat
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integer ndimin
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real varmin(4),varmax(4),stag(4)
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295 |
integer i,j,k,nf1
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integer ntimes
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real time(200)
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298 |
character*80 vnam(100),varname
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integer nvars
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300 |
integer isok,ierr
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301 |
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302 |
c Get grid description from topography
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call cdfopn(pvsrcfile,cdfid,stat)
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304 |
if (stat.ne.0) goto 997
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call getvars(cdfid,nvars,vnam,stat)
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if (stat.ne.0) goto 997
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isok=0
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308 |
varname='ORO'
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309 |
call check_varok(isok,varname,vnam,nvars)
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310 |
if (isok.eq.0) goto 997
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311 |
call getdef(cdfid,varname,ndimin,misdat,vardim,
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312 |
> varmin,varmax,stag,stat)
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if (stat.ne.0) goto 997
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time(1)=0.
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315 |
call gettimes(cdfid,time,ntimes,stat)
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if (stat.ne.0) goto 997
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call clscdf(cdfid,stat)
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if (stat.ne.0) goto 997
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320 |
c Open output netcdf file
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321 |
call cdfwopn(pvsrcfile,cdfid,stat)
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if (stat.ne.0) goto 997
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c Create the variable if necessary
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call getvars(cdfid,nvars,vnam,stat)
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if (stat.ne.0) goto 997
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isok=0
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varname='NSQREF'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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vardim(1)=1
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vardim(2)=1
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vardim(3)=2*nz+1
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call putdef(cdfid,varname,ndimin,misdat,vardim,
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> varmin,varmax,stag,stat)
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if (stat.ne.0) goto 997
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endif
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isok=0
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varname='RHOREF'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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vardim(1)=1
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vardim(2)=1
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vardim(3)=2*nz+1
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call putdef(cdfid,varname,ndimin,misdat,vardim,
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> varmin,varmax,stag,stat)
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if (stat.ne.0) goto 997
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endif
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isok=0
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varname='PREREF'
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call check_varok(isok,varname,vnam,nvars)
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352 |
if (isok.eq.0) then
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|
|
353 |
vardim(1)=1
|
|
|
354 |
vardim(2)=1
|
|
|
355 |
vardim(3)=2*nz+1
|
|
|
356 |
call putdef(cdfid,varname,ndimin,misdat,vardim,
|
|
|
357 |
> varmin,varmax,stag,stat)
|
|
|
358 |
if (stat.ne.0) goto 997
|
|
|
359 |
endif
|
|
|
360 |
isok=0
|
|
|
361 |
varname='THETAREF'
|
|
|
362 |
call check_varok(isok,varname,vnam,nvars)
|
|
|
363 |
if (isok.eq.0) then
|
|
|
364 |
vardim(1)=1
|
|
|
365 |
vardim(2)=1
|
|
|
366 |
vardim(3)=2*nz+1
|
|
|
367 |
call putdef(cdfid,varname,ndimin,misdat,vardim,
|
|
|
368 |
> varmin,varmax,stag,stat)
|
|
|
369 |
if (stat.ne.0) goto 997
|
|
|
370 |
endif
|
|
|
371 |
isok=0
|
|
|
372 |
varname='ZREF'
|
|
|
373 |
call check_varok(isok,varname,vnam,nvars)
|
|
|
374 |
if (isok.eq.0) then
|
|
|
375 |
vardim(1)=1
|
|
|
376 |
vardim(2)=1
|
|
|
377 |
vardim(3)=2*nz+1
|
|
|
378 |
call putdef(cdfid,varname,ndimin,misdat,vardim,
|
|
|
379 |
> varmin,varmax,stag,stat)
|
|
|
380 |
if (stat.ne.0) goto 997
|
|
|
381 |
endif
|
|
|
382 |
|
|
|
383 |
c Write data
|
|
|
384 |
varname='NSQREF'
|
|
|
385 |
print*,'W NSQREF ',trim(pvsrcfile)
|
|
|
386 |
call putdat(cdfid,varname,time(1),0,nsqref,stat)
|
|
|
387 |
if (stat.ne.0) goto 997
|
|
|
388 |
varname='RHOREF'
|
|
|
389 |
print*,'W RHOREF ',trim(pvsrcfile)
|
|
|
390 |
call putdat(cdfid,varname,time(1),0,rhoref,stat)
|
|
|
391 |
if (stat.ne.0) goto 997
|
|
|
392 |
varname='THETAREF'
|
|
|
393 |
print*,'W THETAREF ',trim(pvsrcfile)
|
|
|
394 |
call putdat(cdfid,varname,time(1),0,thetaref,stat)
|
|
|
395 |
if (stat.ne.0) goto 997
|
|
|
396 |
varname='PREREF'
|
|
|
397 |
print*,'W PREREF ',trim(pvsrcfile)
|
|
|
398 |
call putdat(cdfid,varname,time(1),0,pressref,stat)
|
|
|
399 |
if (stat.ne.0) goto 997
|
|
|
400 |
varname='ZREF'
|
|
|
401 |
print*,'W ZREF ',trim(pvsrcfile)
|
|
|
402 |
call putdat(cdfid,varname,time(1),0,zref,stat)
|
|
|
403 |
if (stat.ne.0) goto 997
|
|
|
404 |
|
|
|
405 |
c Close output netcdf file
|
|
|
406 |
call clscdf(cdfid,stat)
|
|
|
407 |
if (stat.ne.0) goto 997
|
|
|
408 |
|
|
|
409 |
return
|
|
|
410 |
|
|
|
411 |
c Exception handling
|
|
|
412 |
997 print*,'Write_Ref: Problem with input netcdf file... Stop'
|
|
|
413 |
stop
|
|
|
414 |
|
|
|
415 |
end
|
|
|
416 |
|
|
|
417 |
|
|
|
418 |
c --------------------------------------------------------------------------------
|
|
|
419 |
c Read input fields for reference profile
|
|
|
420 |
c --------------------------------------------------------------------------------
|
|
|
421 |
|
|
|
422 |
SUBROUTINE read_inp (field,fieldname,pvsrcfile,
|
|
|
423 |
> nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv)
|
|
|
424 |
|
|
|
425 |
c Read <fieldname> from netcdf file <pvsrcfile> into <field>. The grid is specified
|
|
|
426 |
c by <nx,ny,nz,dx,dy,dz,xmin,ymin,zmin>. A check is performed whether the input
|
|
|
427 |
c files are consitent with this grid. The missing data value is set to <mdv>.
|
|
|
428 |
|
|
|
429 |
implicit none
|
|
|
430 |
|
|
|
431 |
c Declaration of subroutine parameters
|
|
|
432 |
integer nx,ny,nz
|
|
|
433 |
real field(0:nx,0:ny,0:nz)
|
|
|
434 |
character*80 fieldname
|
|
|
435 |
character*80 pvsrcfile
|
|
|
436 |
real dx,dy,dz,xmin,ymin,zmin
|
|
|
437 |
real mdv
|
|
|
438 |
|
|
|
439 |
c Numerical and physical parameters
|
|
|
440 |
real eps
|
|
|
441 |
parameter (eps=0.01)
|
|
|
442 |
|
|
|
443 |
c Auxiliary variables
|
|
|
444 |
integer cdfid,stat,cdfid99
|
|
|
445 |
integer vardim(4)
|
|
|
446 |
real misdat
|
|
|
447 |
real varmin(4),varmax(4),stag(4)
|
|
|
448 |
integer ndimin,outid,i,j,k
|
|
|
449 |
real max_th
|
|
|
450 |
real tmp(nx,ny,nz)
|
|
|
451 |
integer ntimes
|
|
|
452 |
real time(200)
|
|
|
453 |
integer nvars
|
|
|
454 |
character*80 vnam(100),varname
|
|
|
455 |
integer isok
|
|
|
456 |
|
|
|
457 |
c Open the input netcdf file
|
|
|
458 |
call cdfopn(pvsrcfile,cdfid,stat)
|
|
|
459 |
if (stat.ne.0) goto 998
|
|
|
460 |
|
|
|
461 |
c Check whether needed variables are on file
|
|
|
462 |
call getvars(cdfid,nvars,vnam,stat)
|
|
|
463 |
if (stat.ne.0) goto 998
|
|
|
464 |
isok=0
|
|
|
465 |
varname=trim(fieldname)
|
|
|
466 |
call check_varok(isok,varname,vnam,nvars)
|
|
|
467 |
if (isok.eq.0) goto 998
|
|
|
468 |
|
|
|
469 |
c Get the grid parameters
|
|
|
470 |
call getdef(cdfid,varname,ndimin,misdat,vardim,
|
|
|
471 |
> varmin,varmax,stag,stat)
|
|
|
472 |
if (stat.ne.0) goto 998
|
|
|
473 |
time(1)=0.
|
|
|
474 |
call gettimes(cdfid,time,ntimes,stat)
|
|
|
475 |
if (stat.ne.0) goto 998
|
|
|
476 |
|
|
|
477 |
c Check whether grid parameters are consistent
|
|
|
478 |
if ( (vardim(1).ne.(nx+1)).or.
|
|
|
479 |
> (vardim(2).ne.(ny+1)).or.
|
|
|
480 |
> (vardim(3).ne.(nz+1)).or.
|
|
|
481 |
> (abs(varmin(1)-xmin).gt.eps).or.
|
|
|
482 |
> (abs(varmin(2)-ymin).gt.eps).or.
|
|
|
483 |
> (abs(varmin(3)-zmin).gt.eps).or.
|
|
|
484 |
> (abs((varmax(1)-varmin(1))/real(vardim(1)-1)-dx).gt.eps).or.
|
|
|
485 |
> (abs((varmax(2)-varmin(2))/real(vardim(2)-1)-dy).gt.eps).or.
|
|
|
486 |
> (abs((varmax(3)-varmin(3))/real(vardim(3)-1)-dz).gt.eps) )
|
|
|
487 |
>then
|
|
|
488 |
print*,'Input grid inconsitency...'
|
|
|
489 |
print*,' Nx = ',vardim(1),nx+1
|
|
|
490 |
print*,' Ny = ',vardim(2),ny+1
|
|
|
491 |
print*,' Nz = ',vardim(3),nz+1
|
|
|
492 |
print*,' Varminx = ',varmin(1),xmin
|
|
|
493 |
print*,' Varminy = ',varmin(2),ymin
|
|
|
494 |
print*,' Varminz = ',varmin(3),zmin
|
|
|
495 |
print*,' Dx = ',(varmax(1)-varmin(1))/real(nx-1),dx
|
|
|
496 |
print*,' Dy = ',(varmax(2)-varmin(2))/real(ny-1),dy
|
|
|
497 |
print*,' Dz = ',(varmax(3)-varmin(3))/real(nz-1),dz
|
|
|
498 |
goto 998
|
|
|
499 |
endif
|
|
|
500 |
|
|
|
501 |
c Load variables
|
|
|
502 |
call getdef(cdfid,varname,ndimin,misdat,vardim,
|
|
|
503 |
> varmin,varmax,stag,stat)
|
|
|
504 |
if (stat.ne.0) goto 998
|
|
|
505 |
call getdat(cdfid,varname,time(1),0,field,stat)
|
|
|
506 |
print*,'R ',trim(varname),' ',trim(pvsrcfile)
|
|
|
507 |
if (stat.ne.0) goto 998
|
|
|
508 |
|
|
|
509 |
c Close input netcdf file
|
|
|
510 |
call clscdf(cdfid,stat)
|
|
|
511 |
if (stat.ne.0) goto 998
|
|
|
512 |
|
|
|
513 |
c Set missing data value to <mdv>
|
|
|
514 |
do i=1,nx
|
|
|
515 |
do j=1,ny
|
|
|
516 |
do k=1,nz
|
|
|
517 |
if (abs(field(i,j,k)-misdat).lt.eps) then
|
|
|
518 |
field(i,j,k)=mdv
|
|
|
519 |
endif
|
|
|
520 |
enddo
|
|
|
521 |
enddo
|
|
|
522 |
enddo
|
|
|
523 |
|
|
|
524 |
return
|
|
|
525 |
|
|
|
526 |
c Exception handling
|
|
|
527 |
998 print*,'Read_Inp: Problem with input netcdf file... Stop'
|
|
|
528 |
stop
|
|
|
529 |
|
|
|
530 |
end
|
|
|
531 |
|
|
|
532 |
c --------------------------------------------------------------------------------
|
|
|
533 |
c Check whether variable is found on netcdf file
|
|
|
534 |
c --------------------------------------------------------------------------------
|
|
|
535 |
|
|
|
536 |
subroutine check_varok (isok,varname,varlist,nvars)
|
|
|
537 |
|
|
|
538 |
c Check whether the variable <varname> is in the list <varlist(nvars)>. If this is
|
|
|
539 |
C the case, <isok> is incremented by 1. Otherwise <isok> keeps its value.
|
|
|
540 |
|
|
|
541 |
implicit none
|
|
|
542 |
|
|
|
543 |
c Declaraion of subroutine parameters
|
|
|
544 |
integer isok
|
|
|
545 |
integer nvars
|
|
|
546 |
character*80 varname
|
|
|
547 |
character*80 varlist(nvars)
|
|
|
548 |
|
|
|
549 |
c Auxiliary variables
|
|
|
550 |
integer i
|
|
|
551 |
|
|
|
552 |
c Main
|
|
|
553 |
do i=1,nvars
|
|
|
554 |
if (trim(varname).eq.trim(varlist(i))) isok=isok+1
|
|
|
555 |
enddo
|
|
|
556 |
|
|
|
557 |
end
|
|
|
558 |
|
|
|
559 |
c --------------------------------------------------------------------------------
|
|
|
560 |
c Get grid parameters
|
|
|
561 |
c --------------------------------------------------------------------------------
|
|
|
562 |
|
|
|
563 |
subroutine read_dim (nx,ny,nz,dx,dy,dz,xmin,ymin,zmin,mdv,
|
|
|
564 |
> pvsrcfile)
|
|
|
565 |
|
|
|
566 |
c Get the grid parameters from the variable <TH> on the input file <pvsrcfile>.
|
|
|
567 |
c The grid parameters are
|
|
|
568 |
c nx,ny,nz : Number of grid points in x, y and z direction
|
|
|
569 |
c xmin,ymin,zmin : Minimum domain coordinates in x, y and z direction
|
|
|
570 |
c xmax,ymax,zmax : Maximal domain coordinates in x, y and z direction
|
|
|
571 |
c dx,dy,dz : Horizontal and vertical resolution
|
|
|
572 |
c Additionally, it is checked whether the vertical grid is equally spaced. If ok,
|
|
|
573 |
c the grid paramters are transformed from lon/lat to distance (in meters)
|
|
|
574 |
|
|
|
575 |
implicit none
|
|
|
576 |
|
|
|
577 |
c Declaration of subroutine parameters
|
|
|
578 |
character*80 pvsrcfile
|
|
|
579 |
integer nx,ny,nz
|
|
|
580 |
real dx,dy,dz
|
|
|
581 |
real xmin,ymin,zmin,xmax,ymax,zmax
|
|
|
582 |
real mdv
|
|
|
583 |
|
|
|
584 |
c Numerical epsilon and other physical/geoemtrical parameters
|
|
|
585 |
real eps
|
|
|
586 |
parameter (eps=0.01)
|
|
|
587 |
|
|
|
588 |
c Auxiliary variables
|
|
|
589 |
integer cdfid,cstid
|
|
|
590 |
integer ierr
|
|
|
591 |
character*80 vnam(100),varname
|
|
|
592 |
integer nvars
|
|
|
593 |
integer isok
|
|
|
594 |
integer vardim(4)
|
|
|
595 |
real misdat
|
|
|
596 |
real varmin(4),varmax(4),stag(4)
|
|
|
597 |
real aklev(1000),bklev(1000),aklay(1000),bklay(1000)
|
|
|
598 |
real dh
|
|
|
599 |
character*80 csn
|
|
|
600 |
integer ndim
|
|
|
601 |
integer i
|
|
|
602 |
|
|
|
603 |
c Get all grid parameters
|
|
|
604 |
call cdfopn(pvsrcfile,cdfid,ierr)
|
|
|
605 |
if (ierr.ne.0) goto 998
|
|
|
606 |
call getvars(cdfid,nvars,vnam,ierr)
|
|
|
607 |
if (ierr.ne.0) goto 998
|
|
|
608 |
isok=0
|
|
|
609 |
varname='T'
|
|
|
610 |
call check_varok(isok,varname,vnam,nvars)
|
|
|
611 |
if (isok.eq.0) goto 998
|
|
|
612 |
call getcfn(cdfid,csn,ierr)
|
|
|
613 |
if (ierr.ne.0) goto 998
|
|
|
614 |
call cdfopn(csn,cstid,ierr)
|
|
|
615 |
if (ierr.ne.0) goto 998
|
|
|
616 |
call getdef(cdfid,varname,ndim,misdat,vardim,varmin,varmax,
|
|
|
617 |
> stag,ierr)
|
|
|
618 |
if (ierr.ne.0) goto 998
|
|
|
619 |
nx=vardim(1)
|
|
|
620 |
ny=vardim(2)
|
|
|
621 |
nz=vardim(3)
|
|
|
622 |
xmin=varmin(1)
|
|
|
623 |
ymin=varmin(2)
|
|
|
624 |
zmin=varmin(3)
|
|
|
625 |
call getlevs(cstid,nz,aklev,bklev,aklay,bklay,ierr)
|
|
|
626 |
if (ierr.ne.0) goto 998
|
|
|
627 |
call getgrid(cstid,dx,dy,ierr)
|
|
|
628 |
if (ierr.ne.0) goto 998
|
|
|
629 |
xmax=varmax(1)
|
|
|
630 |
ymax=varmax(2)
|
|
|
631 |
zmax=varmax(3)
|
|
|
632 |
dz=(zmax-zmin)/real(nz-1)
|
|
|
633 |
call clscdf(cstid,ierr)
|
|
|
634 |
if (ierr.ne.0) goto 998
|
|
|
635 |
call clscdf(cdfid,ierr)
|
|
|
636 |
if (ierr.ne.0) goto 998
|
|
|
637 |
|
|
|
638 |
c Check whether the grid is equallay spaced in the vertical
|
|
|
639 |
do i=1,nz-1
|
|
|
640 |
dh=aklev(i+1)-aklev(i)
|
|
|
641 |
if (abs(dh-dz).gt.eps) then
|
|
|
642 |
print*,'Aklev: Vertical grid must be equally spaced... Stop'
|
|
|
643 |
print*,(aklev(i),i=1,nz)
|
|
|
644 |
stop
|
|
|
645 |
endif
|
|
|
646 |
dh=aklay(i+1)-aklay(i)
|
|
|
647 |
if (abs(dh-dz).gt.eps) then
|
|
|
648 |
print*,'Aklay: Vertical grid must be equally spaced... Stop'
|
|
|
649 |
print*,(aklay(i),i=1,nz)
|
|
|
650 |
stop
|
|
|
651 |
endif
|
|
|
652 |
enddo
|
|
|
653 |
|
|
|
654 |
c Set missing data value
|
|
|
655 |
mdv=misdat
|
|
|
656 |
|
|
|
657 |
return
|
|
|
658 |
|
|
|
659 |
c Exception handling
|
|
|
660 |
998 print*,'Read_Dim: Problem with input netcdf file... Stop'
|
|
|
661 |
stop
|
|
|
662 |
|
|
|
663 |
end
|
|
|
664 |
|
|
|
665 |
|
|
|
666 |
c ********************************************************************************
|
|
|
667 |
c * DEFINE REFERENCE PROFILE *
|
|
|
668 |
c ********************************************************************************
|
|
|
669 |
|
|
|
670 |
c --------------------------------------------------------------------------------
|
|
|
671 |
c Calculate area mean
|
|
|
672 |
c --------------------------------------------------------------------------------
|
|
|
673 |
|
|
|
674 |
SUBROUTINE mean(a,m,nx,ny,nz,mdv,weight)
|
|
|
675 |
|
|
|
676 |
c Calculate the area-mean of <m> and save it on <a>.
|
|
|
677 |
|
|
|
678 |
implicit none
|
|
|
679 |
|
|
|
680 |
c Declaration of subroutine parameters
|
|
|
681 |
real mdv
|
|
|
682 |
integer nx,ny,nz
|
|
|
683 |
real m(0:nx,0:ny,0:nz),a(0:2*nz)
|
|
|
684 |
real weight(0:nx,0:ny)
|
|
|
685 |
|
|
|
686 |
c Numerical epsilon
|
|
|
687 |
real eps
|
|
|
688 |
parameter (eps=0.01)
|
|
|
689 |
|
|
|
690 |
c Auxiliary varaibles
|
|
|
691 |
real mea(0:nz)
|
|
|
692 |
integer i,j,k,kk
|
|
|
693 |
real counter
|
|
|
694 |
|
|
|
695 |
c Determine the mean over all levels (handle missing data)
|
|
|
696 |
do k=0,nz
|
|
|
697 |
mea(k)=0.
|
|
|
698 |
counter=0.
|
|
|
699 |
do i=0,nx
|
|
|
700 |
do j=0,ny
|
|
|
701 |
if (abs(m(i,j,k)-mdv).gt.eps) then
|
|
|
702 |
mea(k)=mea(k)+m(i,j,k)*weight(i,j)
|
|
|
703 |
counter=counter+weight(i,j)
|
|
|
704 |
endif
|
|
|
705 |
|
|
|
706 |
enddo
|
|
|
707 |
enddo
|
|
|
708 |
if (counter.gt.0) then
|
|
|
709 |
mea(k)=mea(k)/counter
|
|
|
710 |
else
|
|
|
711 |
mea(k)=mdv
|
|
|
712 |
endif
|
|
|
713 |
enddo
|
|
|
714 |
|
|
|
715 |
c Prepare the output array: split layers and levels
|
|
|
716 |
do k=0,nz-1
|
|
|
717 |
kk=2*k
|
|
|
718 |
a(kk)=mea(k)
|
|
|
719 |
a(kk+1)=0.5*(mea(k)+mea(k+1))
|
|
|
720 |
enddo
|
|
|
721 |
a(2*nz)=mea(nz)
|
|
|
722 |
|
|
|
723 |
end
|