--- MITgcm/doc/tag-index	2011/05/05 09:24:44	1.1424
+++ MITgcm/doc/tag-index	2011/05/18 02:21:49	1.1435
@@ -1,10 +1,48 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1424 2011/05/05 09:24:44 mlosch Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1435 2011/05/18 02:21:49 jmc Exp $
 $Name:  $
 
     Notes on tags used in MITgcmUV
     ==============================
 
-o pkg/ctrl: 
+o obcs and 2d/3d solver norm:
+   use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB 
+   and outside OB interior region (will allow to place OB further inside the 
+   domain). Depending on the domain, can affects cg2d-Norm (previous 
+   cancelation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
+   and cg3d-Norm (previous Norm was computed before canceling OB terms),
+   e.g. in tutorial_plume_on_slope.
+  - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
+o pkg rbcs:
+  - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
+  - add capability to apply relaxation to horizontal velocity uVel & vVel.
+o pkg/grdchk: add gradient check for control variable xx_shifwflx
+o pkg/shelfice/shelfice_init_fixed.F
+  fix CPP-flag combinations
+o pkg/seaice: Merge iceage code of Pierre Rampal
+  * update/change/correct ice age calculations
+  * add age updates for pathological cases 
+  Probably needs more testing...
+
+checkpoint62x (2011/05/13)
+o pkg/mom_vecinv:
+   high-order vorticity scheme: use interior masks (maskInW & S)
+   to zero-out (outside OB) gradient of vorticity.
+o verification exp.:
+   turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
+   hs94.128x64x5 and seaice_obcs ; update results.
+o pkg/obcs:
+  fix bug in OBeta for YZ sections in obcs_exf_load.F
+o pkg/ctrl, pkg/shelfice, and optim:
+  - add new control variable xx_shifwflx (fresh water flux underneath ice
+    shelves). This is almost as tedious as obcs-ctrl, because the
+    variables needs its own mask.
+  - add a cost function term that penalizes the deviation of xx_shifwflx
+    from the first guess (zero) in analogy to other control variables
+o pkg/shelfice:
+  - start basic adjoint
+o pkg/ctrl:
+  - remove extra 2D field "for good measure" when initializing in
+    ctrl_set_globfld_[xy/xz/yz].F
   - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
   - improve error messages in ctrl_set_unpack_*
 o OBC implementation in momentum: