--- MITgcm/doc/tag-index	2003/11/03 03:51:35	1.202
+++ MITgcm/doc/tag-index	2003/11/23 04:28:12	1.212
@@ -1,8 +1,74 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.202 2003/11/03 03:51:35 edhill Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.212 2003/11/23 04:28:12 jmc Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint52b_post
+o new version: "thsice" of thermodynamic sea-ice pkg:
+ - only 1 call from "forward_step"; conserve energy, fresh-water & salt. 
+ - modify fluxes but do not change theta directly;
+ - light cleaning of bulk_force pkg (still needed with thsice).
+ - add forcing fields + data files in global_ocean.cs32x15/inp_thsice 
+   + output_thsice.txt to test thsice & bulk_force pkgs.
+o put back grid & coriolis monitor output.
+checkpoint52b_pre
+
+o call "do_the_model_io" at the beginning (=> dump initial state) 
+o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
+o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
+  (need info on NUMBER_OF_PTRACERS)
+o missing PTRACERS headers in some routines
+o default tamc.h in pkg/autodiff supposed to crash
+  to ensure proper customization
+
+checkpoint52a_post
+o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
+  - moved surfaceTendencyTice from pkg/seaice to main code
+  - subroutine FREEZE_SURFACE now limits only surface temperature
+    and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
+    => new output.txt for global_ocean.cs32x15 & global_with_exf
+  - keep the old version of FREEZE for backward compatibility;
+    global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
+  - corresponding modifs for TAF directives
+o added surface flux output variables to TIMEAVE_STATVARS
+o time-averaged output for pkg/ptracers
+o fix problem with ECCO-related divided adjoint
+  snapshot file was missing some ad-variables,
+  but no warning issued by TAF
+
+checkpoint52a_pre
+o some bug fixes for #undef REAL4_IS_SLOW
+
+checkpoint52 = ecco_c52_e35
+o after testing adjoints of checkpoint51u_post
+
+checkpoint51u_post
+o this is the post-merge tag of the ecco-branch
+  (needs another clean checkout and re-testing)
+o various natl_box_adjoint configs and results
+  but no input fields
+o obcs adjoint not yet merged!
+o adding ECCO global 1x1 and 2x2 degree configs
+o updated/extended some store directives for seaice
+o pkg/ecco now containes ecco-specific part of cost function
+o top level routines the_main_loop, forward_step
+  supersede those in model/src/
+  previous input data.cost now in data.ecco
+  (new namelist ecco_cost_nml)
+o in ctrl/ cleaned some cross-dependencies and updated CPP options
+
+checkpoint51t_post
+o this is the pre-merge tag of the ecco-branch
+
+checkpoint51s_post
+o cleanup: removed various obsolete #define-s
+o pkg/grdchk
+  - renamed 'ph-grd 3' to 'grad-res'
+  - merged from ecco-branch 
+    (remaining bug fixes for obcs gradient checks)
+  - additional high-precision output for testreport
+    (grep for 'precision_grdchk_result')
+
 checkpoint51r_post
 o cleaned up or removed CPP_OPTIONS.h files
 o updated results for some of the tests to reflect the new