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michaesp |
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PROGRAM coastline
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c *********************************************************************
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c * Add the coastline and land sea mask to the REF file *
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c * Michael Sprenger / Winter 2006,07 *
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c *********************************************************************
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implicit none
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c --------------------------------------------------------------------
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c Declaration of parameters and variables
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c --------------------------------------------------------------------
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c Input parameters
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character*80 coastfile
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character*80 reffile
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real clon,clat,crot
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c Output arrays
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integer nmax
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parameter (nmax=100000)
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real,allocatable, dimension (:,:) :: landsea
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real,allocatable, dimension (:,:) :: xcor,ycor
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real xpos(nmax),ypos(nmax)
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real lon(nmax), lat(nmax)
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real rlon(nmax),rlat(nmax)
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integer ncoast
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integer rnx,rny
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real rxmin,rymin,rxmax,rymax
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real rdx,rdy
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c Auxiliary variables
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integer i,j
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character*80 name
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integer cdfid,cstid
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character*80 cfn
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integer ierr,stat
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character*80 varname
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real varmin(4),varmax(4),stag(4)
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integer vardim(4),ndim
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real mdv
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integer isok
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integer nvars
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integer ntimes
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real time
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character*80 vnam(100)
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c --------------------------------------------------------------------
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c Preparations
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c --------------------------------------------------------------------
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print*,'*********************************************************'
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print*,'* coastline *'
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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,*) reffile
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read(10,*) coastfile
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read(10,*) name,clon
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if ( trim(name).ne.'CLON' ) stop
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read(10,*) name,clat
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if ( trim(name).ne.'CLAT' ) stop
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read(10,*) name,crot
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if ( trim(name).ne.'CROT' ) stop
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close(10)
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print*
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print*,trim(reffile)
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print*,trim(coastfile)
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print*,clon,clat,crot
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c Read grid parameters
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call cdfopn(reffile,cdfid,ierr)
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if (ierr.ne.0) goto 998
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call getvars(cdfid,nvars,vnam,ierr)
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if (ierr.ne.0) goto 998
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varname='X'
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call getdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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call gettimes(cdfid,time,ntimes,ierr)
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if (ierr.ne.0) goto 998
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call clscdf(cdfid,ierr)
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rnx=vardim(1)
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rny=vardim(2)
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rxmin=varmin(1)
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rymin=varmin(2)
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rxmax=varmax(1)
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rymax=varmax(2)
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rdx=(rxmax-rxmin)/real(rnx-1)
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rdy=(rymax-rymin)/real(rny-1)
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c Allocate memory
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allocate(landsea(rnx,rny),stat=stat)
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if (stat.ne.0) print*,'*** error allocating array landsea ***'
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allocate(xcor(rnx,rny),stat=stat)
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if (stat.ne.0) print*,'*** error allocating array xcor ***'
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allocate(ycor(rnx,rny),stat=stat)
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if (stat.ne.0) print*,'*** error allocating array ycor ***'
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c Read data
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call cdfopn(reffile,cdfid,ierr)
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if (ierr.ne.0) goto 998
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varname='X'
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call getdat(cdfid,varname,time,1,xcor,ierr)
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if (ierr.ne.0) goto 998
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varname='Y'
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call getdat(cdfid,varname,time,1,ycor,ierr)
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if (ierr.ne.0) goto 998
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call clscdf(cdfid,ierr)
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c Read the coastfile
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open(10,file=coastfile)
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ncoast=1
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100 read(10,*,end=200) lon(ncoast),lat(ncoast)
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ncoast=ncoast+1
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goto 100
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200 close(10)
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ncoast=ncoast-1
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c Handle missing data values
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mdv=-100000.
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do i=ncoast,nmax
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lon(i)=mdv
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lat(i)=mdv
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enddo
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c --------------------------------------------------------------------
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c Transform coast(lat/lon) to coast(x/y)
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c --------------------------------------------------------------------
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call getenvir (clon,clat,crot,
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> xcor,ycor,rnx,rny,rxmin,rymin,rdx,rdy,mdv,
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> lon,lat,rlon,rlat,xpos,ypos,nmax)
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c --------------------------------------------------------------------
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c Write output
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c --------------------------------------------------------------------
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c Open output file and set some general parameters
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call cdfwopn(reffile,cdfid,ierr)
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if (ierr.ne.0) goto 998
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vardim(1)=1
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vardim(2)=1
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vardim(3)=nmax
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ndim=3
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c Write LAT
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isok=0
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varname='COAST_LAT'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,lat,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Write LON
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isok=0
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varname='COAST_LON'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,lon,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Write RLAT
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isok=0
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varname='COAST_RLAT'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,rlat,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Write RLON
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isok=0
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varname='COAST_RLON'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,rlon,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Write Y
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isok=0
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varname='COAST_Y'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,ypos,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Write X
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isok=0
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varname='COAST_X'
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call check_varok(isok,varname,vnam,nvars)
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if (isok.eq.0) then
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call putdef(cdfid,varname,ndim,mdv,vardim,
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> varmin,varmax,stag,ierr)
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if (ierr.ne.0) goto 998
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endif
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call putdat(cdfid,varname,time,0,xpos,ierr)
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if (ierr.ne.0) goto 998
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print*,'W ',trim(varname),' ',trim(reffile)
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c Close output file
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call clscdf(cdfid,ierr)
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if (ierr.ne.0) goto 998
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c --------------------------------------------------------------------
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c Exception handling
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c --------------------------------------------------------------------
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stop
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998 print*,'Problems with input netcdf file'
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stop
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END
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c --------------------------------------------------------------------------------
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c Subroutine to get environment of strcof
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c --------------------------------------------------------------------------------
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SUBROUTINE getenvir (clon,clat,rotation,
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> xcor,ycor,rnx,rny,rxmin,rymin,rdx,rdy,mdv,
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> lon,lat,rlon,rlat,xpos,ypos,n)
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c Rotate from a local quasi-cartesian coordiante system into lat/lon coordinate
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c system.
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implicit none
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259 |
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c Declaration of input and output parameters
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integer n
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real clon,clat,rotation
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real lon(n), lat(n)
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real rlon(n),rlat(n)
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real xpos(n),ypos(n)
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integer rnx,rny
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real xcor(rnx,rny),ycor(rnx,rny)
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real rxmin,rymin,rdx,rdy
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real mdv
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c Set numerical and physical constants
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real g2r
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parameter (g2r=0.0174533)
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real pi180
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parameter (pi180=3.14159265359/180.)
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real eps
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parameter (eps=0.0001)
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c Auxiliary variables
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real pollon,pollat
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integer i,j
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real xind,yind
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283 |
real rindx,rindy
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284 |
integer indx,indy,indr,indu
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real frac0i,frac0j,frac1i,frac1j
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real rlon1(n),rlat1(n)
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287 |
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288 |
c Externals
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real lmtolms,phtophs
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290 |
external lmtolms,phtophs
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291 |
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c First rotation
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293 |
pollon=clon-180.
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294 |
if (pollon.lt.-180.) pollon=pollon+360.
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295 |
pollat=90.-clat
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296 |
do i=1,n
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297 |
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298 |
if ( (abs(lon(i)-mdv).gt.eps).and.
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> (abs(lat(i)-mdv).gt.eps) ) then
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300 |
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301 |
c First rotation
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302 |
pollon=clon-180.
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if (pollon.lt.-180.) pollon=pollon+360.
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304 |
pollat=90.-clat
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305 |
rlon1(i)=lmtolms(lat(i),lon(i),pollat,pollon)
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306 |
rlat1(i)=phtophs(lat(i),lon(i),pollat,pollon)
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307 |
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308 |
c Second coordinate transformation
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309 |
pollon=-180.
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310 |
pollat=90.+rotation
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311 |
rlon(i)=90.+lmtolms(rlat1(i),rlon1(i)-90.,pollat,pollon)
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312 |
rlat(i)=phtophs(rlat1(i),rlon1(i)-90.,pollat,pollon)
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313 |
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314 |
c Get rotated latitude and longitude
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315 |
100 if (rlon(i).lt.rxmin) then
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316 |
rlon(i)=rlon(i)+360.
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317 |
goto 100
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318 |
endif
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319 |
102 if (rlon(i).gt.(rxmin+real(rnx-1)*rdx)) then
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320 |
rlon(i)=rlon(i)-360.
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321 |
goto 102
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322 |
endif
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323 |
if ( (rlon(i).lt.rxmin).or.
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324 |
> (rlon(i).gt.(rxmin+real(rnx-1)*rdx)).or.
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325 |
> (rlat(i).lt.rymin).or.
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326 |
> (rlat(i).gt.(rymin+real(rny-1)*rdy)) ) then
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327 |
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328 |
rlon(i)=mdv
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329 |
rlat(i)=mdv
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330 |
endif
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331 |
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332 |
c Get x and y coordinates
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333 |
rindx=(rlon(i)-rxmin)/rdx+1.
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rindy=(rlat(i)-rymin)/rdy+1.
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335 |
indx=int(rindx)
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336 |
indy=int(rindy)
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337 |
if ((indx.gt.1).and.(indx.lt.rnx).and.
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338 |
> (indy.gt.1).and.(indy.lt.rny)) then
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339 |
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340 |
indr=indx+1
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341 |
if (indr.gt.rnx) indr=1
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342 |
indu=indy+1
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343 |
if (indu.gt.rny) indu=rny
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344 |
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345 |
frac0i=rindx-float(indx)
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346 |
frac0j=rindy-float(indy)
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347 |
frac1i=1.-frac0i
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348 |
frac1j=1.-frac0j
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349 |
xpos(i) = xcor(indx ,indy) * frac1i * frac1j
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350 |
& + xcor(indx ,indu) * frac1i * frac0j
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351 |
& + xcor(indr ,indy) * frac0i * frac1j
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|
352 |
& + xcor(indr ,indu) * frac0i * frac0j
|
|
|
353 |
ypos(i) = ycor(indx ,indy) * frac1i * frac1j
|
|
|
354 |
& + ycor(indx ,indu) * frac1i * frac0j
|
|
|
355 |
& + ycor(indr ,indy) * frac0i * frac1j
|
|
|
356 |
& + ycor(indr ,indu) * frac0i * frac0j
|
|
|
357 |
|
|
|
358 |
else
|
|
|
359 |
|
|
|
360 |
xpos(i)=mdv
|
|
|
361 |
ypos(i)=mdv
|
|
|
362 |
|
|
|
363 |
endif
|
|
|
364 |
|
|
|
365 |
else
|
|
|
366 |
|
|
|
367 |
rlon(i)=mdv
|
|
|
368 |
rlat(i)=mdv
|
|
|
369 |
xpos(i)=mdv
|
|
|
370 |
ypos(i)=mdv
|
|
|
371 |
|
|
|
372 |
endif
|
|
|
373 |
|
|
|
374 |
enddo
|
|
|
375 |
|
|
|
376 |
END
|
|
|
377 |
|
|
|
378 |
|
|
|
379 |
c --------------------------------------------------------------------------------
|
|
|
380 |
c Transformation routine: LMSTOLM and PHSTOPH from library gm2em
|
|
|
381 |
c --------------------------------------------------------------------------------
|
|
|
382 |
|
|
|
383 |
REAL FUNCTION LMTOLMS (PHI, LAM, POLPHI, POLLAM)
|
|
|
384 |
C
|
|
|
385 |
C%Z% Modul %M%, V%I% vom %G%, extrahiert am %H%
|
|
|
386 |
C
|
|
|
387 |
C**** LMTOLMS - FC:UMRECHNUNG DER WAHREN GEOGRAPHISCHEN LAENGE LAM
|
|
|
388 |
C**** AUF EINEM PUNKT MIT DEN KOORDINATEN (PHIS, LAMS)
|
|
|
389 |
C**** IM ROTIERTEN SYSTEM. DER NORDPOL DES SYSTEMS HAT
|
|
|
390 |
C**** DIE WAHREN KOORDINATEN (POLPHI, POLLAM)
|
|
|
391 |
C** AUFRUF : LAM = LMTOLMS (PHI, LAM, POLPHI, POLLAM)
|
|
|
392 |
C** ENTRIES : KEINE
|
|
|
393 |
C** ZWECK : UMRECHNUNG DER WAHREN GEOGRAPHISCHEN LAENGE LAM AUF
|
|
|
394 |
C** EINEM PUNKT MIT DEN KOORDINATEN (PHIS, LAMS) IM
|
|
|
395 |
C** ROTIERTEN SYSTEM. DER NORDPOL DIESES SYSTEMS HAT
|
|
|
396 |
C** DIE WAHREN KOORDINATEN (POLPHI, POLLAM)
|
|
|
397 |
C** VERSIONS-
|
|
|
398 |
C** DATUM : 03.05.90
|
|
|
399 |
C**
|
|
|
400 |
C** EXTERNALS: KEINE
|
|
|
401 |
C** EINGABE-
|
|
|
402 |
C** PARAMETER: PHI REAL BREITE DES PUNKTES IM GEOGR. SYSTEM
|
|
|
403 |
C** LAM REAL LAENGE DES PUNKTES IM GEOGR. SYSTEM
|
|
|
404 |
C** POLPHI REAL GEOGR.BREITE DES N-POLS DES ROT. SYSTEMS
|
|
|
405 |
C** POLLAM REAL GEOGR.LAENGE DES N-POLS DES ROT. SYSTEMS
|
|
|
406 |
C** AUSGABE-
|
|
|
407 |
C** PARAMETER: WAHRE GEOGRAPHISCHE LAENGE ALS WERT DER FUNKTION
|
|
|
408 |
C** ALLE WINKEL IN GRAD (NORDEN>0, OSTEN>0)
|
|
|
409 |
C**
|
|
|
410 |
C** COMMON-
|
|
|
411 |
C** BLOECKE : KEINE
|
|
|
412 |
C**
|
|
|
413 |
C** FEHLERBE-
|
|
|
414 |
C** HANDLUNG : KEINE
|
|
|
415 |
C** VERFASSER: G. DE MORSIER
|
|
|
416 |
|
|
|
417 |
REAL LAM,PHI,POLPHI,POLLAM
|
|
|
418 |
|
|
|
419 |
DATA ZRPI18 , ZPIR18 / 57.2957795 , 0.0174532925 /
|
|
|
420 |
|
|
|
421 |
ZSINPOL = SIN(ZPIR18*POLPHI)
|
|
|
422 |
ZCOSPOL = COS(ZPIR18*POLPHI)
|
|
|
423 |
ZLAMPOL = ZPIR18*POLLAM
|
|
|
424 |
ZPHI = ZPIR18*PHI
|
|
|
425 |
ZLAM = LAM
|
|
|
426 |
IF(ZLAM.GT.180.0) ZLAM = ZLAM - 360.0
|
|
|
427 |
ZLAM = ZPIR18*ZLAM
|
|
|
428 |
|
|
|
429 |
ZARG1 = - SIN(ZLAM-ZLAMPOL)*COS(ZPHI)
|
|
|
430 |
ZARG2 = - ZSINPOL*COS(ZPHI)*COS(ZLAM-ZLAMPOL)+ZCOSPOL*SIN(ZPHI)
|
|
|
431 |
IF (ABS(ZARG2).LT.1.E-30) THEN
|
|
|
432 |
IF (ABS(ZARG1).LT.1.E-30) THEN
|
|
|
433 |
LMTOLMS = 0.0
|
|
|
434 |
ELSEIF (ZARG1.GT.0.) THEN
|
|
|
435 |
LMTOLMS = 90.0
|
|
|
436 |
ELSE
|
|
|
437 |
LMTOLMS = -90.0
|
|
|
438 |
ENDIF
|
|
|
439 |
ELSE
|
|
|
440 |
LMTOLMS = ZRPI18*ATAN2(ZARG1,ZARG2)
|
|
|
441 |
ENDIF
|
|
|
442 |
|
|
|
443 |
RETURN
|
|
|
444 |
END
|
|
|
445 |
|
|
|
446 |
|
|
|
447 |
REAL FUNCTION PHTOPHS (PHI, LAM, POLPHI, POLLAM)
|
|
|
448 |
C
|
|
|
449 |
C%Z% Modul %M%, V%I% vom %G%, extrahiert am %H%
|
|
|
450 |
C
|
|
|
451 |
C**** PHTOPHS - FC:UMRECHNUNG DER WAHREN GEOGRAPHISCHEN BREITE PHI
|
|
|
452 |
C**** AUF EINEM PUNKT MIT DEN KOORDINATEN (PHIS, LAMS)
|
|
|
453 |
C**** IM ROTIERTEN SYSTEM. DER NORDPOL DES SYSTEMS HAT
|
|
|
454 |
C**** DIE WAHREN KOORDINATEN (POLPHI, POLLAM)
|
|
|
455 |
C** AUFRUF : PHI = PHTOPHS (PHI, LAM, POLPHI, POLLAM)
|
|
|
456 |
C** ENTRIES : KEINE
|
|
|
457 |
C** ZWECK : UMRECHNUNG DER WAHREN GEOGRAPHISCHEN BREITE PHI AUF
|
|
|
458 |
C** EINEM PUNKT MIT DEN KOORDINATEN (PHIS, LAMS) IM
|
|
|
459 |
C** ROTIERTEN SYSTEM. DER NORDPOL DIESES SYSTEMS HAT
|
|
|
460 |
C** DIE WAHREN KOORDINATEN (POLPHI, POLLAM)
|
|
|
461 |
C** VERSIONS-
|
|
|
462 |
C** DATUM : 03.05.90
|
|
|
463 |
C**
|
|
|
464 |
C** EXTERNALS: KEINE
|
|
|
465 |
C** EINGABE-
|
|
|
466 |
C** PARAMETER: PHI REAL BREITE DES PUNKTES IM GEOGR. SYSTEM
|
|
|
467 |
C** LAM REAL LAENGE DES PUNKTES IM GEOGR. SYSTEM
|
|
|
468 |
C** POLPHI REAL GEOGR.BREITE DES N-POLS DES ROT. SYSTEMS
|
|
|
469 |
C** POLLAM REAL GEOGR.LAENGE DES N-POLS DES ROT. SYSTEMS
|
|
|
470 |
C** AUSGABE-
|
|
|
471 |
C** PARAMETER: ROTIERTE BREITE PHIS ALS WERT DER FUNKTION
|
|
|
472 |
C** ALLE WINKEL IN GRAD (NORDEN>0, OSTEN>0)
|
|
|
473 |
C**
|
|
|
474 |
C** COMMON-
|
|
|
475 |
C** BLOECKE : KEINE
|
|
|
476 |
C**
|
|
|
477 |
C** FEHLERBE-
|
|
|
478 |
C** HANDLUNG : KEINE
|
|
|
479 |
C** VERFASSER: G. DE MORSIER
|
|
|
480 |
|
|
|
481 |
REAL LAM,PHI,POLPHI,POLLAM
|
|
|
482 |
|
|
|
483 |
DATA ZRPI18 , ZPIR18 / 57.2957795 , 0.0174532925 /
|
|
|
484 |
|
|
|
485 |
ZSINPOL = SIN(ZPIR18*POLPHI)
|
|
|
486 |
ZCOSPOL = COS(ZPIR18*POLPHI)
|
|
|
487 |
ZLAMPOL = ZPIR18*POLLAM
|
|
|
488 |
ZPHI = ZPIR18*PHI
|
|
|
489 |
ZLAM = LAM
|
|
|
490 |
IF(ZLAM.GT.180.0) ZLAM = ZLAM - 360.0
|
|
|
491 |
ZLAM = ZPIR18*ZLAM
|
|
|
492 |
ZARG = ZCOSPOL*COS(ZPHI)*COS(ZLAM-ZLAMPOL) + ZSINPOL*SIN(ZPHI)
|
|
|
493 |
|
|
|
494 |
PHTOPHS = ZRPI18*ASIN(ZARG)
|
|
|
495 |
|
|
|
496 |
RETURN
|
|
|
497 |
END
|
|
|
498 |
|
|
|
499 |
|
|
|
500 |
c ----------------------------------------------------------------
|
|
|
501 |
c Check whether variable is found on netcdf file
|
|
|
502 |
c ----------------------------------------------------------------
|
|
|
503 |
|
|
|
504 |
subroutine check_varok (isok,varname,varlist,nvars)
|
|
|
505 |
|
|
|
506 |
c Check whether the variable <varname> is in the list <varlist(nvars)>.
|
|
|
507 |
c If this is the case, <isok> is incremented by 1. Otherwise <isok>
|
|
|
508 |
c keeps its value.
|
|
|
509 |
|
|
|
510 |
implicit none
|
|
|
511 |
|
|
|
512 |
c Declaraion of subroutine parameters
|
|
|
513 |
integer isok
|
|
|
514 |
integer nvars
|
|
|
515 |
character*80 varname
|
|
|
516 |
character*80 varlist(nvars)
|
|
|
517 |
|
|
|
518 |
c Auxiliary variables
|
|
|
519 |
integer i
|
|
|
520 |
|
|
|
521 |
c Main
|
|
|
522 |
do i=1,nvars
|
|
|
523 |
if (trim(varname).eq.trim(varlist(i))) isok=isok+1
|
|
|
524 |
enddo
|
|
|
525 |
|
|
|
526 |
end
|
|
|
527 |
|
|
|
528 |
|