--- MITgcm/doc/tag-index	2002/11/07 21:55:45	1.102
+++ MITgcm/doc/tag-index	2002/11/12 20:59:27	1.103
@@ -1,8 +1,62 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.102 2002/11/07 21:55:45 adcroft Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.103 2002/11/12 20:59:27 heimbach Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint46n_post
+Merging from release1_p8:
+o verification/natl_box:
+  updating new external_fields_load routine
+o New package: pkg/seaice
+  Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
+  The sea-ice code is based on Hibler (1979-1980).
+  Two sea-ice dynamic solvers, ADI and LSR, are included.
+  In addition to computing prognostic sea-ice variables and diagnosing 
+  the forcing/external data fields that drive the ocean model, 
+  SEAICE_MODEL also sets theta to the freezing point under sea-ice.
+  The implied surface heat flux is then stored in variable 
+  surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and 
+  kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the 
+  non-local transport term.  Because this call precedes model 
+  thermodynamics, temperature under sea-ice may not be "exactly" at 
+  the freezing point by the time theta is dumped or time-averaged.
+  N.B.: fairly large differences in accuracy occur across
+        different platforms/compilers; comparison between
+        g77 (Linux) and F77 (SGI Origin 2000/MIPSpro) 
+        generated output gives:
+   T           S           U           V
+  C D M    c        m  s        m  s        m  s        m  s
+  n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
+  f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
+  g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
+
+  Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
+o GAD: 
+  - generated new common blocks to account for call of
+    same gad routines with differing traceridentities
+    (needed to modify tracerIdentity indices in GAD.h)
+  - generated separate common blocks for case useCubedSphereExchange
+    (Department of Futurology)
+  - parameter lists to gmredi_?transport: added tracerIdentity
+  - added new key indices to tamc.h
+o external_fields_load:
+  - added this routine to TAF list
+  - needed to make some common blocks global and additional storing
+    along the same lines as exf package (checkpoint_lev?_directives.h)
+o exf:
+  updated external forcing package
+  - bug fixes carried over from ecco-branch
+    (missing OBCS_OPTIONS.h in two routines)
+  - enable easy to use "no forcing".
+  - added exf I/O for atmospheric loading
+  - added exf I/O for runoff data
+  - transfered scaling between exf <-> MITgcm to exf namelist
+o Adding new verification experiment global_with_exf.
+  This verification experiment is almost identical to the
+  global_ocean.90x40x15 experiment, except that it uses
+  the exf (and cal) package instead of the
+  external_fields_load routine (cf README file).
+
 checkpoint46m_post
 o modified testscript to return -- when there are no lines of "%MON" output 
 o added new flag "quasiHydrostatic" for QH mode