--- MITgcm/doc/tag-index	1998/07/08 15:40:09	1.10
+++ MITgcm/doc/tag-index	2000/04/10 14:41:52	1.26
@@ -1,8 +1,117 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.10 1998/07/08 15:40:09 cnh Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.26 2000/04/10 14:41:52 adcroft Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint27
+ o fixed calc_isoslopes() to so that cancellation of terms in tensor
+   formulation works properly with variable resolution.
+ o restructured the calling tree between the_model_main() and dynamics()
+ o split initialise() into initialise_fixed() and initialise_varia()
+ o introduced initialization file pSurfInitFile for free surface (cg2d_x)
+   in new routine ini_psurf()
+
+checkpoint26
+ o moved some #ifdef in optional routines to encompass everything
+   except the argument declarations. This was using up some memory.
+ o fixed macros like _ADT to work with both versions of Linux cpp
+ o cleaned up some unused and uninitialized variables
+   (helps when debugging with strict compile options)
+ o split up CPP_EEOPTIONS.h into options and macros
+   (macros are now in eesupp/inc/CPP_EEMACROS.h)
+ o patch for 2 processor JAM mode
+
+checkpoint25
+ o updates for OBCs and NH
+ o dramatically reduced memory usage
+ o added "JAM" routines for use on Artic network
+ o parameterization of convection by implicit vertical diffusion
+ o added a diagnostic of convective index
+ o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
+   (this is was partly for OBCs and NH but also in anticipation of
+    an explicit free-surface option)
+ o initial state input files for U and V
+
+checkpoint24
+ o Removed some spurious "REAL"s
+ o Updated KPP to latest version from JPL
+ o Added a COS(latitude) in horizontal viscosity
+
+checkpoint23
+ o Added del^4 diffusion for salt and temperature
+ o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
+
+checkpoint22
+ o Made many small changes: implicit none, format(i5), etc...
+ o Introduced KPP mixing scheme (compiles and runs but *not* tested)
+
+checkpoint21
+ o Introduced new I/O package that supports direct-access records (mdsio.F)
+ o Split-up mid-level I/O routines
+ o Updated input data for experiments 0,1,2,4 and 5
+ o Finally removed the genmake.* scripts (everyone seems happy with genmake)
+
+checkpoint20
+ o Tidied up open-boundaries some more
+ o Added non-hydrostatic code
+ o Fixed some input data
+ o Modified MPI start-up to work in "coupled" context.
+
+checkpoint19
+ o Tidied up directory structure for verification experiments.
+ o Added new code for open boundaries.
+ o Corrected advective terms near boundaries.
+ o Added CPP flag for "old UV" geometry and corrected spherical geometry.
+ o Implemented free-slip/no-slip BCs and del^4 dissipation.
+ o Split default parameters out of ini_parms.F into set_defaults.F.
+
+checkpoint18
+ o Further changes for optional code generation with 
+   CPP - ugh!
+
+checkpoint17
+ o Beginning to incorporating modularity
+   for supporting atmos. and ocean configs.
+ o Small changes for TAMC complinace
+ o New ultra simple test case. Barotropic box
+   configuration "exp0".
+
+checkpoint16
+ o Minor changes to exchange routines to support 
+   accumulation in reverse mode. Adjoint of an
+   assignment is an addition.
+ o Changes to support compilation by TAMC (LR(1) 
+   syntax) and by g77 under Linux ( 72 character
+   limit ).
+
+checkpoint15
+ Rewrote exchange routines to allow
+ o General tile <-> tile connectivity.
+ o TAMC reverse mode flag ( is this really needed? )
+ o Variable width overlap and exchange region widths.
+ o Hooks for sharing data via DMA, Arctic, Memory Channel, 
+   shmput/shmget, VIA, SYSV shmem and every other cool 
+   communication method.
+
+checkpoint14
+ Consistent isomorphism chages made. These allow dynamical core
+ to support both pressure and meters as a vertical coordinate.
+
+checkpoint13
+ Release which corrects global_max problem and a couple
+ of KGM time-averaging diagnostic errors. Also contains
+ a double-gyre experiment setup as well as the baseline
+ 4 degree global template. The double gyre template is
+ organised to allow it to be applied automatically to
+ the baseline configuration.
+
+branch-point-rdot
+ A few tidy-ups have been made bt the real point of this
+ check-point (excuse the pun) is to allow a branch to be
+ made for the purposes of adding the rDot alterations.
+ I don't want to commit the rDot to the main-trunk until
+ we've actually tested it...
+
 checkpoint12
  Tidy up and added generic genmake script (formerly
  configure script).