--- MITgcm/doc/tag-index	1998/10/28 03:23:17	1.15
+++ MITgcm/doc/tag-index	2000/09/11 23:30:54	1.30
@@ -1,8 +1,123 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.15 1998/10/28 03:23:17 cnh Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.30 2000/09/11 23:30:54 heimbach Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint31
+ o Packages interface brought in line with defined standard
+   -> new routines packages_...F
+   -> changes in initialise_fixed.F, initialise_varia.F
+   -> enables initialisation interface for ECCO package
+ o Rescaling of external forcing fields immediately after read
+   (removed from external_forcing.F) 
+   -> new: surface_fields_scale.F
+   -> affects ini_foorcing.F, external_fields_load.F
+ o Computation of surface tendencies before tendency updates.
+   -> new: external_forcing_surf.F
+ o Change of variable names useGMRedi, useKPP, useECCO
+ o Further changes in dynamics.F, impldiff.F for TAMC
+ o Tested for experiments 0, 2, 4.
+   - not yet tested for GMRedi.
+   - not yet tested for KPP.
+
+checkpoint30
+ o Updates for OBCs
+ o New experiment for test OBCs (internal_wave)
+ o New output.txt in verification/exp4/results/
+ o Updates for KPP: calculation of viscosity corrected, new variables
+   kpp_dumpFreq and kpp_taveFreq
+ o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
+   and entry for T90 in genmake
+
+checkpoint29
+ o packaged KPP and GM/Redi
+
+checkpoint28
+ o Corrected initialization of hFacMin for difference vertical coordinates
+ o Modified calculation of partial cell thickness to more robust algorithm
+ o config_summary.F: replaced write_1D_... by write_0D_...
+   read_write.F: added subroutines write_0D_...
+ o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
+   included some initialisations required for TAMC.
+ o routine calc_isoslopes: modified sqrt computation to make it 
+   differentiable for zero argument.
+ o routines dynamics, impldiff:
+   included store directives and tape key computations required for TAMC.
+ o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
+
+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