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michaesp |
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PROGRAM tracal
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c ***********************************************************************
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c * Calculations with trajectories *
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c * Michael Sprenger / Spring, summer 2010 *
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c ***********************************************************************
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use evaluate
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implicit none
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c ----------------------------------------------------------------------
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c Declaration of variables
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c ----------------------------------------------------------------------
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c Input and output format for trajectories (see iotra.f)
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character*80 inpfile ! Input filename
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character*80 outfile ! Output filename
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character*80 expr ! Expression for calculation
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c Trajectories
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integer ntra ! Number of trajectories
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integer ntim ! Number of times
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integer ncol ! Number of columns
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real,allocatable, dimension (:,:,:) :: trainp ! Trajectories (ntra,ntim,ncol )
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real,allocatable, dimension (:,:,:) :: traout ! Trajectories (ntra,ntim,ncol+1)
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character*80 vars(100) ! Variable names
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integer refdate(6) ! Reference date
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c Auxiliary variables
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integer inpmode
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integer outmode
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integer stat
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integer fid
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integer i,j,k
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character (len=24) col,new
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real value
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character ch
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integer ileft,iright
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c ----------------------------------------------------------------------
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c Do the reformating
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c ----------------------------------------------------------------------
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c Read parameters
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open(10,file='tracal.param')
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read(10,*) inpfile
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read(10,*) outfile
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read(10,*) expr
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read(10,*) ntra,ntim,ncol
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close(10)
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c Get the name of the output field
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ileft = 1
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iright = 0
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do i=1,80
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if ( expr(i:i).eq.'=' ) iright = i
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enddo
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if ( iright.eq.0 ) then
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vars(ncol+1) = 'CALC'
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expr = 'CALC='//trim(expr)
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else
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vars(ncol+1) = trim( expr(1:iright-1) )
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endif
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new = vars( ncol+1 )
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print*,'inp = ',trim(inpfile)
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print*,'out = ',trim(outfile)
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print*,'expr = ',trim(expr),' ---> ',trim( new )
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c Determine the formats
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call mode_tra(inpmode,inpfile)
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if (inpmode.eq.-1) inpmode=1
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call mode_tra(outmode,outfile)
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if (outmode.eq.-1) outmode=1
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c Allocate memory
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allocate(trainp(ntra,ntim,ncol),stat=stat)
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if (stat.ne.0) print*,'*** error allocating array trainp ***'
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allocate(traout(ntra,ntim,ncol+1),stat=stat)
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if (stat.ne.0) print*,'*** error allocating array traout ***'
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c Read inpufile
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call ropen_tra(fid,inpfile,ntra,ntim,ncol,refdate,vars,inpmode)
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call read_tra (fid,trainp,ntra,ntim,ncol,inpmode)
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call close_tra(fid,inpmode)
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c Copy to output trajectory
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do i=1,ntra
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do j=1,ntim
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do k=1,ncol
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traout(i,j,k) = trainp(i,j,k)
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enddo
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enddo
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enddo
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c Loop over all trajectories
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do i=1,ntra
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do j=1,ntim
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do k=1,ncol
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c Attribute trajectory values to symbols
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col = vars(k)
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call defparam( col, traout(i,j,k) )
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enddo
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c Evaluate expression
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call evaleqn(expr)
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c Get the result
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call getparam(new,value)
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traout(i,j,ncol+1) = value
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enddo
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enddo
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c Write output file
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call wopen_tra(fid,outfile,ntra,ntim,ncol+1,refdate,vars,outmode)
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call write_tra(fid,traout,ntra,ntim,ncol+1,outmode)
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call close_tra(fid,outmode)
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end
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