source: trunk/LMDZ.GENERIC/libf/phystd/setspv.F90 @ 1255

Last change on this file since 1255 was 997, checked in by emillour, 11 years ago

Generic GCM:

  • bug fix in setspi & setspv : counters must be initialized in routine in case of multiple calls

JL

File size: 4.4 KB
Line 
1      subroutine setspv
2
3!==================================================================
4!     
5!     Purpose
6!     -------
7!     Set up spectral intervals, stellar spectrum and Rayleigh
8!     opacity in the shortwave.
9!     
10!     Authors
11!     -------
12!     Adapted from setspv in the NASA Ames radiative code by
13!     Robin Wordsworth (2009).
14!
15!     Called by
16!     ---------
17!     callcorrk.F
18!     
19!     Calls
20!     -----
21!     ave_stelspec.F
22!     
23!==================================================================
24
25      use radinc_h,    only: L_NSPECTV, corrkdir, banddir
26      use radcommon_h, only: BWNV,BLAMV,WNOV,DWNV,WAVEV, &
27                             STELLARF,TAURAY
28      use datafile_mod, only: datadir
29
30      implicit none
31
32#include "comcstfi.h"
33#include "callkeys.h"
34
35      logical file_ok
36
37      integer N, M, file_entries
38
39      character(len=30)  :: temp1
40      character(len=200) :: file_id
41      character(len=200) :: file_path
42
43      real*8 :: lastband(2)
44
45      real*8 STELLAR(L_NSPECTV)
46      real*8 sum, dummy
47
48      !! used to count lines
49      integer :: nb
50      integer :: ierr
51
52!=======================================================================
53!     Set up spectral bands - wavenumber [cm^(-1)]. Go from smaller to
54!     larger wavenumbers, the same as in the IR.
55
56      write(temp1,'(i2.2)') L_NSPECTV
57      file_id='/corrk_data/'//trim(adjustl(banddir))//'/narrowbands_VI.in'
58      file_path=TRIM(datadir)//TRIM(file_id)
59
60      ! check that the file exists
61      inquire(FILE=file_path,EXIST=file_ok)
62      if(.not.file_ok) then
63         write(*,*)'The file ',TRIM(file_path)
64         write(*,*)'was not found by setspv.F90, exiting.'
65         write(*,*)'Check that your path to datagcm:',trim(datadir)
66         write(*,*)' is correct. You can change it in callphys.def with:'
67         write(*,*)' datadir = /absolute/path/to/datagcm'
68         write(*,*)'Also check that the corrkdir you chose in callphys.def exists.'
69         call abort
70      endif
71   
72      nb=0
73      ierr=0
74      ! check that the file contains the right number of bands
75      open(131,file=file_path,form='formatted')
76      read(131,*,iostat=ierr) file_entries
77      do while (ierr==0)
78        read(131,*,iostat=ierr) dummy
79        if (ierr==0) nb=nb+1
80      enddo
81      close(131)
82
83      write(*,*) 'setspv: L_NSPECTV = ',L_NSPECTV, 'in the model '
84      write(*,*) '        there are   ',nb, 'entries in ',TRIM(file_path)
85      if(nb.ne.L_NSPECTV) then
86         write(*,*) 'MISMATCH !! I stop here'
87         call abort
88      endif
89
90      ! load and display the data
91      open(111,file=file_path,form='formatted')
92      read(111,*)
93       do M=1,L_NSPECTV-1
94         read(111,*) BWNV(M)
95      end do
96      read(111,*) lastband
97      close(111)
98      BWNV(L_NSPECTV)  =lastband(1)
99      BWNV(L_NSPECTV+1)=lastband(2)
100
101
102      print*,'setspv: VI band limits:'
103      do M=1,L_NSPECTV+1
104         print*,m,'-->',BWNV(M),' cm^-1'
105      end do
106      print*,' '
107
108!     Set up mean wavenumbers and wavenumber deltas.  Units of
109!     wavenumbers is cm^(-1); units of wavelengths is microns.
110
111      do M=1,L_NSPECTV
112         WNOV(M)  = 0.5*(BWNV(M+1)+BWNV(M))
113         DWNV(M)  = BWNV(M+1)-BWNV(M)
114         WAVEV(M) = 1.0E+4/WNOV(M)
115         BLAMV(M) = 0.01/BWNV(M)
116      end do
117      BLAMV(M) = 0.01/BWNV(M) ! wavelength in METERS for aerosol stuff
118!     note M=L_NSPECTV+1 after loop due to Fortran bizarreness
119
120!=======================================================================
121!     Set up stellar spectrum
122
123      write(*,*)'setspv: Interpolating stellar spectrum from the hires data...'
124      call ave_stelspec(STELLAR)
125
126!     Sum the stellar flux, and write out the result. 
127      sum = 0.0 
128      do N=1,L_NSPECTV
129         STELLARF(N) = STELLAR(N) * Fat1AU
130         sum         = sum+STELLARF(N)
131      end do
132      write(6,'("setspv: Stellar flux at 1 AU = ",f7.2," W m-2")') sum
133      print*,' '
134
135
136!=======================================================================
137!     Set up the wavelength independent part of the Rayleigh scattering.
138!     The pressure dependent part will be computed elsewhere (OPTCV).
139!     WAVEV is in microns.  There is no Rayleigh scattering in the IR.
140
141      if(rayleigh) then
142         call calc_rayleigh
143      else
144         print*,'setspv: No Rayleigh scattering, check for NaN in output!'
145         do N=1,L_NSPECTV
146            TAURAY(N) = 1E-16
147         end do
148      endif
149
150      RETURN
151    END subroutine setspv
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