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subroutine weedout
c******************************************************************************
c This routine goes through an initial line list and culls from it
c absorption lines that are not substantial contributors. This is
c done in a simple fashion by eliminating lines weaker than X, where
c X = kapnu/kaplam at the approximate line wavelength, calculated
c at a continuue optical depth of 0.5. The user will be prompted for
c the desired value of X.
c******************************************************************************
implicit real*8 (a-h,o-z)
include 'Atmos.com'
include 'Linex.com'
include 'Pstuff.com'
real*8 xratio
real*4 shortnum
c*****examine the parameter file
call params
c*****open the files for: standard output, lines to be kept, and lines
c to be heaved out
nf1out = 20
lscreen = 4
array = 'STANDARD OUTPUT'
nchars = 15
call infile ('output ',nf1out,'formatted ',0,nchars,
. f1out,lscreen)
nf8out = 21
lscreen = lscreen + 2
array = 'KEPT LINES'
nchars = 10
call infile ('output ',nf8out,'formatted ',0,nchars,
. f8out,lscreen)
nf9out = 22
lscreen = lscreen + 2
array = 'DISCARDED LINES'
nchars = 15
call infile ('output ',nf9out,'formatted ',0,nchars,
. f9out,lscreen)
c*****open and read the model atmosphere file
nfmodel = 30
lscreen = lscreen + 2
array = 'THE MODEL ATMOSPHERE'
nchars = 20
call infile ('input ',nfmodel,'formatted ',0,nchars,
. fmodel,lscreen)
call inmodel
call eqlib
c*****open the initial line list file
nflines = 31
lscreen = lscreen + 2
array = 'THE INITIAL LINE LIST'
nchars = 21
call infile ('input ',nflines,'formatted ',0,nchars,
. flines,lscreen)
c*****ask the user about the value of X
lscreen = lscreen + 2
array = 'GIVE THE MINIMUM LINE/CONTINUUM OPACITY RATIO TO KEEP: '
nchars = 55
call getnum (nchars,lscreen,xratio,shortnum)
write (nf1out,1001) xratio
write (nf8out,1002)
write (nf9out,1003)
c*****compute the line opacities
call inlines (3)
1 call nearly (1)
c*****calculate continuum quantities at the line list wavelength middle
wave = (wave1(1)+wave1(nlines))/2.
call opacit (2,wave)
if (modprintopt >= 2)
. write(nf1out,1006) wave,(kaplam(i),i=1,ntau)
c*****divide the lines into keepers and discards
do j=1,nlines
residual = 10.*atom1(j) - dble(nint(10.*(atom1(j))))
if (strength(j)/kaplam(jtau5) >= xratio) then
if (atom1(j) < 100.) then
if (residual > 0. .and. dampnum(j) > 0.) then
write (nf8out,1007) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), dlog10(dampnum(j)), dlog10(strength(j))
else if (residual > 0. .and. dampnum(j) <= 0.) then
write (nf8out,1007) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), 0.0, dlog10(strength(j))
else if (residual <= 0. .and. dampnum(j) > 0.) then
write (nf8out,1004) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), dlog10(dampnum(j)), dlog10(strength(j))
else
write (nf8out,1004) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), 0.0, dlog10(strength(j))
endif
else
if (residual > 0.) then
write (nf8out, 1008) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), d0(j), dlog10(strength(j))
else
write (nf8out, 1005) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), d0(j), dlog10(strength(j))
endif
endif
else
if (atom1(j) < 100.) then
if (residual > 0. .and. dampnum(j) > 0.) then
write (nf9out,1007) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), dlog10(dampnum(j)), dlog10(strength(j))
else if (residual > 0. .and. dampnum(j) <= 0.) then
write (nf9out,1007) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), 0.0, dlog10(strength(j))
else if (residual <= 0. .and. dampnum(j) > 0.) then
write (nf9out,1004) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), dlog10(dampnum(j)), dlog10(strength(j))
else
write (nf9out,1004) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), 0.0, dlog10(strength(j))
endif
else
if (residual > 0.) then
write (nf9out, 1008) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), d0(j), dlog10(strength(j))
else
write (nf9out, 1005) wave1(j), atom1(j), e(j,1),
. dlog10(gf(j)), d0(j), dlog10(strength(j))
endif
endif
endif
enddo
if (nlines +nstrong == 2500) then
call inlines (6)
go to 1
endif
c*****finish
call finish (0)
c*****format statements
1001 format (/'DESIRED LINE-TO-CONTINUUM MINIMUM OPACITY RATIO: ',
. 1pe10.2)
1002 format ('THIS IS THE KEEPER LINE LIST')
1003 format ('THIS IS THE DISCARDED LINE LIST')
1004 format (f10.4, f10.1, f10.3, f10.3, f10.3, 20x, f9.1)
1005 format (f10.4, f10.1, f10.3, f10.3, 10x, f10.3, 10x, f9.1)
1006 format (' kaplam from 1 to ntau at wavelength',f10.2/
. (6(1pd12.4)))
1007 format (f10.4, f10.4, f10.3, f10.3, f10.3, 20x, f9.1)
1008 format (f10.4, f10.5, f10.3, f10.3, 10x, f10.3, 10x, f9.1)
end
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