--- MITgcm/doc/tag-index	2009/10/15 01:23:59	1.1178
+++ MITgcm/doc/tag-index	2009/11/09 16:47:01	1.1190
@@ -1,9 +1,49 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1178 2009/10/15 01:23:59 jmc Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.1190 2009/11/09 16:47:01 mlosch Exp $
 $Name:  $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+o pkg/seaice
+ - fix diagnostics of principal stress components for EVP
+ - add optional diagnostics of non-linear convergence for LSOR solver
+o model/src (3-d solver):
+  Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
+   which consisted in removing the Surf. Non-Hydrostatic pressure from the
+   whole column and adding it to Eta (inspired from Casualli, 1999):
+   Only affects 3-D solver initial guess and only if using ExactConserv,
+   but tests did show a degradation of solver convergence. For this reason,
+   decide to disable this piece of code.
+   to recover previous version, just set zeroPsNH = exactConserv (line 78).
+  Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
+o pkg/ggl90: 
+ - fix previous modif (unfortunatly has not been documented here).
+o pkg/seaice/autodiff:
+ - add CPP flag to include clipping of zeta in EVP code;
+   although clipping of zeta is not necessary for EVP and not recommended
+   it was done by default, now clipping is disabled by default
+ - modify computation and store zetaC/Z in seaice_evp for TAF
+ - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
+ - change seaice_calc_viscosities/strainrates for better
+   vectorization after AD by TAF
+ - rearrange common blocks in SEAICE.h once again for easier dumps of
+   adjoint output, adjust adcommon.h and g_common.h
+ - change flux form of default advection scheme for better vectorization
+   of adjoint code
+ - modify lab_sea/input.lsr to test the flux form of default advection 
+   scheme
+o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
+  transition in checkpoint61r)
+
+checkpoint61x
+o adjoint: adding two new verification experiments
+  * tutorial_global_biogeo: an online dic sensitivity experiment 
+    (work with G. Forget)
+  * tutorial_dic_adjoffline: an offline dic sensitivity experiment
+    (an update of the Dutkiewicz et al., 2006 paper)
+  Both use the same CO2FLUX cost function, but different controls
+  Gradient checks look good, but some recomp. could still be traightened out
+  Should add xx_dic control variable to test at some point
 o model/src:
   add run-time parameters to check and/or mask initial Temp & Salt
 o pkg/ptracers: