--- MITgcm/doc/tag-index	2003/02/12 17:06:01	1.133
+++ MITgcm/doc/tag-index	2003/03/21 23:20:36	1.145
@@ -1,8 +1,127 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.133 2003/02/12 17:06:01 jmc Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.145 2003/03/21 23:20:36 heimbach Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint50a_post
+o Bug fix for merging between c50 and KPP.
+  ikey was passed from thermodynamics to kpp_calc via
+  common block rather than being recomputed in kpp_calc,
+  in contradiction with new key itdkey.
+  New key ikppkey created, and tamc.h headers updated.
+
+checkpoint50
+- 2nd step of merge with ecco-branch:
+  merge changes in ecco-branch back into main trunk
+- bug fix in find_alpha
+- more storing in gmredi_calc_tensor.F, kpp_routines.F
+- avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
+- merged some sliced AD support routines
+
+checkpoint49
+merged from ecco-branch:
+o exf:
+  - Enable initialisation of forcing fields to constant 
+    (runtime) values.
+  - in exf_getffields.F
+    Reduce i-/j-loop to interior domain, discarding overlaps.
+    That also fixes wrong TAF-key computations for key_1, key_2
+    with bulf formulae.
+  - exf_init.F modify #ifdef for exf_init_evap
+  - exf_getffieldrec.F, ctrl_getrec.F
+    The following INT-usages are not safe:
+      fldsecs  = int(fldsecs/fldperiod)*fldperiod
+      fldcount = int(fldsecs/fldperiod) + 1
+    and were modified.
+o autodiff: checkpoint_lev...
+  - updated storing for bulk formulae (some arrays were missing)
+  - added state for seaice package
+  - synchronized with main branch
+o DIVA:
+  Modif.s in
+  - the_main_loop.F
+  - the_model_main.F
+  and added cost_final_restore.F cost_final_store.F
+  o With these changes, it is possible to fully separate
+    the first forward run to compute the cost function (mdthe_main_loop)
+    and adjoint runs over individual DIVA intervals (adthe_main_loop)
+    into separate model executions.
+    This enables better tuning of DIVA to given queue sizes.
+  o Loss of cost function value in consecutive DIVA runs is
+    fixed by storing to 'costfinal' file.
+  o Appropriate call of ctrl_unpack/_pack,grdchk_main at 
+    beginning/end of adjoint integration is accounted for.
+  The current changes apply to TAF-1.4.26.
+  TAF has one remaining bug, requiring one manual change
+  (see MITgcm manual).
+o cal: synchronized between MAIN and ecco-branch
+
+checkpoint48i_post
+o Changes to restore differentiability of code w.r.t. previous tag
+  (mostly adding new routines to make list and replacing
+  pressure by totPhiHyd).
+o Updated and merged grdchk package
+  - has both ADM and TLM checks
+  - works for single- and multi-proc.
+  - output cleaned
+  - worked successfully for parallel DIVA
+o genmake:
+  - Adding -platform=SP4
+  - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
+o Modif. for DIVA:
+  ctrl_unpack should not be called in intermediate DIVA interval.
+  (similar thing would apply for active files such as
+  tbar, sbar, psbar, which should not be reinitialised;
+  only relevant for ecco-branch)
+
+checkpoint48h_post
+o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
+o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
+o Added SEAICE_initialHEFF to pkg/seaice
+o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
+
+checkpoint48g_post
+--- EOS:
+o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
+  store total Potential in totPhyHyd for diagnostics & EOS.
+o fix restart and overlap Pb when using Z-coord and EOS funct. of P
+--- Pressure/geopotential gradient:
+o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
+o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
+  ( changes results of global_ocean_pressure )
+o NLFS + z-coord.: add eta*Rho' contribution.
+o accurate phiHyd when using interface-W at the middle between 2 centers
+ ( changes results of ideal_2D_oce )
+o includes r* 2nd term in potential gradient.
+
+checkpoint48f_post
+Merging from release1_p12:
+o Modifications for using pkg/exf with pkg/seaice
+  - improved description of the various forcing configurations
+  - added basic radiation bulk formulae to pkg/exf
+  - units/sign fix for evap computation in exf_getffields.F
+  - updated verification/global_with_exf/results/output.txt
+o Added pkg/sbo for computing IERS Special Bureau for the Oceans
+  (SBO) core products, including oceanic mass, center-of-mass,
+  angular, and bottom pressure (see pkg/sbo/README.sbo).
+o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
+  to avoid negative values in shallow regions.
+  - updated verification/natl_box/results/output.txt
+  - updated verification/lab_sea/results/output.txt
+o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
+o Added useSingleCpuIO option (see PARAMS.h).
+o Updated useSingleCpuIO option in mdsio_writefield.F to
+  work with multi-field files, e.g., for single-file pickup.
+o pkg/seaice:
+  - bug fix in growth.F: QNET for no shortwave case
+  - added HeffFile for specifying initial sea-ice thickness
+  - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
+o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
+  kpp_transport_t.F, forward_step.F, and the_main_loop.F
+o pkg/seaice:
+  - adjoint-friendly modifications
+  - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
+
 checkpoint48e_post
 o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
 o dynamics: change definition of computational domain & adapt mom_fluxform