--- MITgcm/doc/tag-index	2005/12/13 19:53:52	1.590
+++ MITgcm/doc/tag-index	2005/12/31 01:21:41	1.596
@@ -1,9 +1,17 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.590 2005/12/13 19:53:52 heimbach Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.596 2005/12/31 01:21:41 jmc Exp $
 $Name:  $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint57z_post
+o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
+  affects output (@ truncation level) of exp. plume_on_slope ; updated.
+o fix the pickup behavior for obcs in combination with ptracers
+o fix a bug in ptracers_external_fields_load
+o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
+  affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
+o transfered surface NH pressure to eta field (if exactConserv).
 o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
      and update lab_sea output.txt file.
 o completing 3-dim. relaxation code: additional term
@@ -19,6 +27,13 @@
       1) Use a constant-in-time 3-dim. field
       2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
       3) Real-time relax. to time-evolving prescribed field
+o Adding Laplacian-type smoothness constraint on 
+  initial and boundary (forcing) controls (ic, bc)
+  * enable at compile-time via 
+    ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
+  * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
+  * Absolute scale somewhat unclear so far
+  * no area weighting was included since no other cost term does so far
 
 checkpoint57y_post
 First step for a NLFS adjoint