! $Id: CMN,v 1.1 2009/06/09 21:51:52 daven Exp $
      !=================================================================
      ! NOTES:
      ! (1 ) Changed RCS ID tag comment character from "C" to "!" to
      !       allow freeform compilation.  Also added the & continuation
      !       characters in column 73 to allow header files to be
      !       included in F90 freeform files. (bmy, 6/25/02)
      ! (2 ) Commented out P,  we now use routines from "pressure_mod.f"
      !       to compute pressure for hybrid grid.  Removed TCRIJ,
      !       TCSCAL, TOTALC, TCWETL, SIG, SIGE, AREAW, AREAG, AREAH,
      !       DXP, DYP, DXYP, DXYV, GRAV, LSRC1, LSRC2, LSRC3, LSRC4,
      !       NSTRTC, LDIFF1, LDIFFM, KDIFFU, NINST, NINIT, ICASE, LTM
      !       TLAT, TLNG -- these are now obsolete.
      !       (dsa, bdf, bmy, 8/26/02)
      ! (3 ) Moved AD and T to "dao_mod.f".  The fact that these
      !       were in "CMN" is historical baggage. (bmy, 9/18/02)
      ! (4 ) Removed RH2, STH, RLAT, RLATV, TAUI, TAUE, JMONTH,
      !       JMONTH0, XMID, YLMID, YEDGE, DXYP, TAU, TAU0, TOFDAY,
      !       NTAU, IDAY, JDATE, JYEAR, JDAY, MONTH, IYEAR, I00,
      !       J00, JMSIZE, NREAD, NWRITE, NDYN, NCONV, NDIAG, NCHEM,
      !       NSRCE.  Most of these are now superseded by either
      !       "grid_mod.f" or "time_mod.f". (bmy, 3/11/03)
      ! (5 ) Fix for LINUX - remove & in column 73 (bmy, 6/27/03)
      ! (6 ) Remove obsolete variables and XTRA2 (bmy, 8/2/05)
      !=================================================================

      !=================================================================
      ! IEBD1, JEBD1, IEBD2, JEBD2 define the embedded chemistry region
      !=================================================================
      INTEGER ::      IEBD1, IEBD2, JEBD1, JEBD2
      COMMON /EMBCHM/ IEBD1, IEBD2, JEBD1, JEBD2

      !=================================================================
      ! LPAUSE  stores the annual mean tropopause (bmy, 12/6/99)
      ! IFLX    stores the flags for ND27 diagnostic (bmy, 12/6/99)
      !=================================================================
      INTEGER ::       LPAUSE(IIPAR,JJPAR), IFLX(IIPAR,JJPAR)
      COMMON /TROPTOP/ LPAUSE,              IFLX