c-----------------------------------------------------------------------
c --- COMMON BLOCK /HEAD2/ --- Modified Modeling Variables      POSTUTIL
c                              (for ouput data file)
c-----------------------------------------------------------------------
      logical LCOMPRS2
      character*3 atype
      character*15 asplst2(mxsplv)
      character*16 aspunit2(mxsplv)
      character*80 atitle2(3)
      common/head2/msyr2,mjsday2,mshr2,mssec2,mnrun2,nszout2,msource2,
     &             lcomprs2,atitle2,asplst2,aspunit2,
     &             atype
c-----------------------------------------------------------------------
c     DEFINITIONS       [i]=integer     [r]=real        [a]=array
c                       [c]=character   [L]=logical
c-----------------------------------------------------------------------
c msyr2,mjsday2 Starting time of run: yr, Julian day, hour, sec      [i]
c mshr2,mssec2
c mnrun2        Number of model teps contained in output file        [i]
c nszout2       Number of chemical species/level combinations        [i]
c msource2      Flag for individual source contributions in          [i]
c               output file  
c                 0:  Total from all sources
c                 1:  Individual plus total from all sources
c lcomprs2      Logical indicating whether data on disk are          [L]
c               compressed
c atitle2       Title for run                                       [ca]
c asplst2       List of species/level names                         [ca]
c aspunit2      List of species/level units                         [ca]
c atype         Type of output file                                  [a]
c               '  1' = CONC.DAT
c               ' DF' = DFLX.DAT
c               ' WF' = WFLX.DAT
c               ' TF' = DFLX.DAT  (use dry flux dataset name for total)
c-----------------------------------------------------------------------
