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revision 1.53.2.32 by dimitri, Thu Feb 27 22:29:13 2003 UTC revision 1.53.4.41 by heimbach, Tue May 27 22:43:44 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6  untagged  o Patrick's adjoint-model storage directives for pkg/seaice
7  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o merged with checkpoint50g_post (pkg/seaice and verification/lab_sea)
8  o Added SEAICE_initialHEFF to pkg/seaice    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
9  o SEAICE_WRITE_PICKUP needs to be called before WRITE_CHECKPOINT    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
10        made the default because of faster convergence than ADI
11    o Modifications for adjoint of SEAICE_ALLOW_DYNAMICS
12      - extended state in checkpoint_lev...
13      - in lsr.F, replaced GO TO by fixed loop index (also avoid DO WHILE)
14      - YEAH: in lsr.F, (first) successful use of CADJ LOOP = ITERATION
15      - avoid stoing in S/R budget for now
16      - in dynsolver.F, avoid NPSEUDO loop for adjoint
17      - new comlev1_lsr in the_main_loop
18    
19    ecco_c50_e31
20    o exf totally restructured
21      - replaced all exf_set_ routines by one generic exf_set_gen.F
22        and made sure it's still differentiable
23      - split exf_getffields.F into new exf_bulkformulae.F
24      - exf_inscal_/exf_outscal_ suffixes consistent with field names
25    o New cost function: Tini-Tfin to do model spinup optimization.
26    o Started new verification exp for Tini-Tfin optimization.
27    
28    ecco_c50_e30
29    o corrected CPP option mismatch in exf_Bulk... functions for case
30      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
31    o Merging from release1_p13 and from icebear5
32      - bug fix for pkg/seaice dynamic solver
33      - Added SEAICE_initialHEFF to pkg/seaice
34      - Additional options for pkg/cost/cost_ice.F
35      - Updates to verification/natl_box_adjoint
36      - pkg/ctrl/ctrl_init.F
37        Fix for determination of startrec and endrec.
38      - pkg/cal/cal_toseconds.F
39        Fix for negative intervals shorter than 1 day.
40    
41    ecco_c50_e29
42    Bug fix for merging between c50 and KPP.
43    ikey was passed from thermodynamics to kpp_calc via
44    common block rather than being recomputed in kpp_calc,
45    in contradiction with new key itdkey.
46    New key ikppkey created, and tamc.h headers updated.
47    
48    ecco_c50_e28
49    o major merge:
50      ecco-branch merged with checkpoint50
51      gmredi now available, grdchk, DIVA up-to-date for MPI
52      However, two outstanding problems:
53      - kpp adjoint is broken, needs fixing!
54      - a few minor modif's in handling of CPP option
55        ALLOW_TANGENTLINEAR_RUN in conjunction with
56        ALLOW_ECCO_OPTIMIZATION are necessary to enable
57        TLM runs with ECCO setup
58    
59  release1_p12  ecco_c44_e27
60  o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,  o exf:
61    kpp_transport_t.F, forward_step.F, and the_main_loop.F    - Enable initialisation of forcing fields to constant
62  o pkg/seaice:      (runtime) values.
63    - adjoint-friendly modifications    - in exf_getffields.F
64    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F      Reduce i-/j-loop to interior domain, discarding overlaps.
65        That also fixes wrong TAF-key computations for key_1, key_2
66  release1_p12_pre      with bulf formulae.
67  o Updated useSingleCpuIO option in mdsio_writefield.F to    - exf_init.F modify #ifdef for exf_init_evap
68    work with multi-field files, e.g., for single-file pickup.    - exf_getffieldrec.F, ctrl_getrec.F
69  o pkg/seaice:      The following INT-usages are not safe:
70    - bug fix in growth.F: QNET for no shortwave case        fldsecs  = int(fldsecs/fldperiod)*fldperiod
71    - added HeffFile for specifying initial sea-ice thickness        fldcount = int(fldsecs/fldperiod) + 1
72    - changed SEAICE_EXTERNAL_FLUXES wind stress implementation      and were modified.
73      - added repeatPeriod (from MAIN branch)
74  release1_p11  o grdchk: updated and merged
75  o Modifications for using pkg/exf with pkg/seaice    - has both ADM and TLM checks
76    - improved description of the various forcing configurations    - works for single- and multi-proc.
77    - added basic radiation bulk formulae to pkg/exf    - output cleaned
78    - units/sign fix for evap computation in exf_getffields.F    - worked successfully for parallel DIVA
79    - updated verification/global_with_exf/results/output.txt    Needed one update in EEPARAMS.h and updates in ctrl package
80  o Added pkg/sbo for computing IERS Special Bureau for the Oceans    More modif's may be necessary for ECCO code to support TLM.
81    (SBO) core products, including oceanic mass, center-of-mass,  o autodiff: checkpoint_lev...
82    angular, and bottom pressure (see pkg/sbo/README.sbo).    - updated storing for bulk formulae (some arrays were missing)
83  o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F    - added state for seaice package
84    to avoid negative values in shallow regions.    - synchronized with main branch
85    - updated verification/natl_box/results/output.txt  o DIVA:
86    - updated verification/lab_sea/results/output.txt    Modif.s in
87  o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F    - cost_init.F
88  o Added useSingleCpuIO option (see PARAMS.h).    - cost_averagesfields.F
89      - ecco_the_main_loop.F
90  release1_p10    - ecco_the_model_main.F
91  o modifications for using pkg/exf with pkg/seaice    and added cost_final_restore.F cost_final_store.F
92    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING    o With these changes, it is possible to fully separate
93      and SEAICE_EXTERNAL_FLUXES      the first forward run to compute the cost function (mdthe_main_loop)
94    - pkg/exf CPP options EXF_READ_EVAP and      and adjoint runs over individual DIVA intervals (adthe_main_loop)
95      EXF_NO_BULK_COMPUTATIONS      into separate model executions.
96    - usage examples are Experiments 8 and 9 in      This enables better tuning of DIVA to given queue sizes.
97      verification/lab_sea/README    o Loss of cost function value in consecutive DIVA runs is
98    - verification/lab_sea default experiment now uses      fixed by storing to 'costfinal' file.
99      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf    o Appropriate call of ctrl_unpack/_pack,grdchk_main at
100        beginning/end of adjoint integration is accounted for.
101  release1_p9    The current changes apply to TAF-1.4.26.
102      TAF has one remaining bug, requiring one manual change
103      (see MITgcm manual).
104    o bug fix plus modif for ubar, vbar in cost_averagesfields
105    o cal: synchronized between MAIN and ecco-branch
106    
107    icebear4
108    o Added cost_ice for sea-ice volume sensitivity experiment.
109    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
110    o Reduced derivative singularities in pkg/seaice.
111    o Updated verification/natl_box_adjoint
112    
113    icebear3
114    o Removed spurious iikey and idkey
115    o pkg/exf
116      - bug fix in treatment of downward radiation
117  o pkg/seaice  o pkg/seaice
118    - removed GOTO's and added taf directives    - added initial sea-ice thickness parameter SEAICE_initialHEFF
119    - double precision constants to reduce the g77 (Linux)  o updated verification/natl_box_adjoint
120      to F77 (SGI) differences reported in release1_p8  
121  o tools/genmake  icebear2
122    - added SGI options  o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
123  o verification/testscript    kpp_transport_t.F,and ecco_the_main_loop.F
124    - updated to that of checkpoint47a_post  o adjoint-friendly modifications to pkg/seaice
125  o verification/global_ocean.90x40x15/input/eedata  o added verification/lab_sea as per release1_p12_pre
126    - modified for SGI f77 compatibility  
127  o verification/lab_sea  ecco_c44_e26
128    - added description of sea-ice model  o Merging pkg/exf and pkg/seaice from cvs tag ecco_ice2
129    - added missing matlab routines  o exf: Modifications to correctly handle evap field for adjoint
130    - added test of thermodynamics parallelization  o grdchk:
131      Added code to perform gradient checks for bulk formulae/atmos. state
132  release1_p8    (atemp, aqh, uwind, vwind).
133  o verification/natl_box:    NOTE:
134    updating new external_fields_load routine    This package is out of synch with c48 package.
135  o New package: pkg/seaice    The latter also has the tangent linear gradient checks.
136    Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).    Need to be merged.
137    The sea-ice code is based on Hibler (1979-1980).  o verification/natl_box_adjoint:
138    Two sea-ice dynamic solvers, ADI and LSR, are included.    * added new setup: code_bulk/, input_bulk, results_bulk
139    In addition to computing prognostic sea-ice variables and diagnosing      (Experiment 2, described in README)
140    the forcing/external data fields that drive the ocean model,      uses bulk formulae and atmos. state as control instead of
141    SEAICE_MODEL also sets theta to the freezing point under sea-ice.      air-sea fluxes.
142    The implied surface heat flux is then stored in variable      Performs gradient checks for first 4 elements of atemp control.
143    surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and    * changed standard verification to perform
144    kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the      gradient checks on first 4 elements on hflux control.
145    non-local transport term.  Because this call precedes model    * gmredi switched off (will come after merge with c48).
146    thermodynamics, temperature under sea-ice may not be "exactly" at  
147    the freezing point by the time theta is dumped or time-averaged.  ecco_c44_e25
148    N.B.: fairly large differences in accuracy occur across  o Merging some GM changes from main trunk (c47) to ecco-branch.
149          different platforms/compilers; comparison between  o Updating verif. natl_box_adjoint with GMRedi.
150          g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)  o Adding setup with explicit differentiaton of pressure solver.
151          generated output gives:  o Bug fix: missing OBCS_OPTIONS.h for sponge layer code.
152     T           S           U           V  o (Re-?) Commiting old bug fixes in kpp to ecco-branch
153    C D M    c        m  s        m  s        m  s        m  s    (kpp_calc.F, kpp_routines.F)
   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  
   
 release1_p7  
 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)  
154  o exf:  o exf:
155    updated external forcing package    updated external forcing package
156    - bug fixes carried over from ecco-branch    - cleaned old exfa stuff
157      - bug fixes
158      (missing OBCS_OPTIONS.h in two routines)      (missing OBCS_OPTIONS.h in two routines)
159    - enable easy to use "no forcing".    - enable easy to use "no forcing".
160    - added exf I/O for atmospheric loading    - added exf I/O for atmospheric loading
161    - added exf I/O for runoff data    - added exf I/O for runoff data
162    - transfered scaling between exf <-> MITgcm to exf namelist    - transfered scaling between exf <-> MITgcm to exf namelist
163  o Adding new verification experiment global_with_exf.  
164    This verification experiment is almost identical to the  ecco_c44_e24
   global_ocean.90x40x15 experiment, except that it uses  
   the exf (and cal) package instead of the  
   external_fields_load routine (cf README file).  
   
 release1_p6  
 o fixed the verification/global_ocean.90x40x15 experiment:  
  - new bathymetry (the world according to A., JMC, and M.)  
  - new initial fields and forcing fields (*.bin files)  
  - new POLY3.COEFFS (for the next release one should switch to a full  
    equation of state)  
  - fixed several errors and redundancies in the data file  
  - experiment uses looped cells  
  - added matlab directory with diagnostic scripts for plotting of output  
   
 release1_p5  
 o import recent fix from MAIN branch:  
   - use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  
   - change phiMin in exp1 (to agree with documentation)  
  from checkpoint45 to checkpoint45a_post:  
   - specific exchange for X-slice domain (case Ny=1)  
   - argument futureIter of S/R obcs_calc missing in  
     exp4 & internal_wave /code  
   - solve_for_pressure : set cg2d_x to zero where OBCS are applied  
  from checkpoint44f_post to checkpoint44g_post:  
   - fix surface correction term in multiDimAdvection  
     (affects plume_on_slope results  
 o bug fix in packages_readparms (missing ALLOW_CALENDAR)  
 o bug fix in CG2D.h (correct array size for LETS_MAKE_JAM  
 o Adjoint-related bug fixes in kpp:  
   - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix  
   - kpp_routines: store of Rib avoids partial recomputation bug of TAF.  
 o added Eliassen-Palm flux hooks (dynamics,ini_fields)  
 o removed unused TAF keys iikey, idkey (dynamics,thermodynamics)  
 o flow directives:  
   - new for S/R do_the_model_io  
   - enhanced for S/R checkpoint  
 o added Eliassen Palm flux controls to gradient check package  
 o new ctrl package  
   - adopted from ECCO environment to enable optimization  
   - added Eliassen Palm fluxes to controls  
   - adjusted global_ocean.90x40x15/ and carbon/ accordingly  
   
 release1_p4  
 o Removed f90 comments ("!")  
 o Modified initialisations to enable exf package for MITgcm  
   (without invoking ECCO_PACKAGE).  
165  o modifications to gradient check package (Martin Losch)  o modifications to gradient check package (Martin Losch)
166    - enable centered differences    - enable centered differences
167    - modified format of standard output    - modified format of standard output
168    o bug fix for nwettile contents
169      so far assumed global sum  in first entry (1,1,k),
170      needed for global control vector
171      -> introduced new variable nwet[c/w/s]global(nr)
172    o shifts of calls to cal/exf package to be accessible
173      in MITgcm stand-alone
174    o shifted packages_init_variables before convective_adjustment_ini
175      (corresponding update of TAF tape initialisation).
176    o removed auxiliary field in impldiff
177      (caused numerical differences for GMRedi cases)
178    o updated obcs control part (G. Gebbie)
179    o removed some f90 comments ("!")
180    o Bug fixes and updates in cost package
181     * cost_final: correct multiplier mult_tauv, mult_sflux
182     * cost_hyd: added call cost_ssh
183     * cost_init_barfiles.F: replaced arrays by tmpfld's
184     * cost_readtopexmean.F: ersmask -> tpmeanmask
185     * cost_weights.F: corrected wtheta[2], wsalt[2]
186    o cleaned exchanges in cg2d.F
187    
188  release1_p3  ecco_c44_e23
189  o added tangent linear setup to verification/carbon/  merged patches between release1_p1 and release1_p2:
 o added adjoint sensitivity setup to verification/global_ocean...  
 o moved packages_init_variables before convective_adjustment  
 o output of verif. which use GMRedi brought up-to-date with  
   MAIN trunk (those were re-created after changes in GMRedi)  
 o included CPP option SINGLE_LAYER_MODE  
   to configure barotropic setup (Martin Losch).  
 o Removed auxiliary variable in impldiff  
   (caused numerical differences with MAIN trunk routine).  
 o Introduced CPP option ALLOW_AUTODIFF_MONITOR to  
   disable adcommon.h/g_common.h by default.  
 o Cleaned exchange calls in cg2d.  
   
 release1_p2  
190  o fixed array boundary problem for adjoint  o fixed array boundary problem for adjoint
191    (related to partial recomputation within subroutine    (related to partial recomputation within subroutine
192    related to dynamics -> calc_viscosity -> mom_...    related to dynamics -> calc_viscosity -> mom_...
# Line 189  o fixed recomputation in thermodynamics Line 194  o fixed recomputation in thermodynamics
194  o prepare (but not complete) recomputation problem in impldiff  o prepare (but not complete) recomputation problem in impldiff
195  o fixed problem for adjoint of global_max  o fixed problem for adjoint of global_max
196  o switched off sponge layer code in external_forcing  o switched off sponge layer code in external_forcing
197    Bug fix in ctrl_mask_set_yz (spotted by G. Gebbie)
198    
199    ecco_c44_e22
200    o Finally, the merges with the Scripps cost function terms:
201      Various additions, modifications, quality checks.
202    o Plus: Included switch ALLOW_AUTODIFF_MONITOR to handle
203      monitoring of adjoint state.
204    o Plus: removed comm_stats, ini_communication_patterns from diff. list
205      (no more need to "keep" MPI headers for adjoint generation)
206    o Plus: exf changes:
207      o added run-off routine
208      o additional storing needed for ustress,vstess
209        because of state-dependent quality check
210      o added missing initialisations
211    o Plus: genmake with MAKEDEPEND variable was still missing in ecco-branch
212    NB: - verification/natl_box_adjoint/ 240 steps run
213          * looks ok under Linux (twain.lcs.mit.edu)
214          * looks ok on MIT SUN's (fjord.mit.edu)
215          * NaN in reverse mode on Scripps SUN's at iter=214
216          * NaN in reverse mode on IBM SP3 (BlueHorizon) at iter=204
217        - 1 year forward int. global 2x2 deg. produces similar cost functions
218          * all cost terms of new code are slightly smaller (0.5 to 3%).
219    
220    ecco_c44_e21
221    o reversed order of ctrl/cost initialisation
222    o gmredi_slope_psi.F: Inconsistent types in MIN/MAX expressions
223    o modified to enable ctrl field swapping
224    o bug fix for global sum of ncvarlength in ctrl_init
225    o no more call to ctrl_unpack from ctrl_init
226    o no more write of ctrl vector in ctrl_pack
227      however, init. of control vector from ctrl_unpack
228    o various bug fixes & consistent nobcs handling in
229      ctrl_pack/unpack routines (by G. Gebbie)
230    o optim package: Added obcs control part for lsopt I/O
231      (by G. Gebbie)
232    o missing call to obcs_diags
233    o moved calls in packages_init_fixed to packages_readparms
234      because some quantities are needed earlier.
235    
236    ecco_c44_e20
237    o before major merges from the Scripps setup
238      here are two small updates:
239      - field swapping for surface flux controls enabled
240        (remains t.b.d. for atmos. state plus obcs)
241      - bug fix in active_file.F for xz-/yz- routines
242      - added missing xz-/yz- routines to active_file_ad.F
243    
244  release1_p1  ecco_c44_e19
245  o merged necessary patches:  o merged necessary patches:
246    - AD-related changes for GMRedi    - AD-related changes for GMRedi
247    - fixes i KPP (delZ -> drF)    - fixes i KPP (delZ -> drF)
248    - hook to OBCS songe layer code in external_forcing    - hook to OBCS songe layer code in external_forcing
249    - errorMessageUnit non-zero in eeboot.F    - errorMessageUnit non-zero in eeboot.F
250    - modified test cost function and carbon verif.    - included GMREDI, EXACT_CONSERV to natl_box_adjoint verif.
   
 release1_chkpt44d_post = chkpt44d_post  
251    
252  chkpt44d_pre,post  ecco_c44_e18
253  o added missing EXCLUDE_MONITOR flags  o sponge layer code for obcs was missing
254  o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi    - added hook in external_forcing.F
255    (incompatible typ in MIN/MAX expressions caused problems    - added storing for TAF
256    on IBM SP3)  o new routine cost_init_barfiles to initialise
257  o in genmake added variable MAKEDEPEND    adjoint fields adtbar, adsbar, adpsbar
258    plus resetting for case SunOS    (needed in conjunction with corrected ladinit for active I/O)
259  o added timer_stats.c routine for IBM SP3  o cleaned up and corrected order in packages_readparms, ecco_readparms
260  o removed variables in dynamics  o corrected and simplified weights for obcs controls
261      - weight fields simplified
262  o real fresh water flux implemented with non-linear free-surface.    - bug fix in ctrl_pack
263      - no more write of control vector in ctrl_pack
264  chkpt44c_pre,post  o i/j index bug fixes in cost_ssh_mean
265  o few fix (mask in shap_s2, EmPmR in external_field_load,  
266    USE_NATURAL_BCS in solve_for_P);  ecco_c44_e17
267  o add arguments myIter & myTime to S/R obcs_calc & solve_for_P  o bug fixes in cost package
268      * wrong identifier for active I/O of monthly mean psbar
269  checkpoint44b_pre/_post      (cost_averagesfields, cost_ssh) xx_psbar_dummy
270  o merge of relevant stuff from the ecco-branch:    * cleaned all identifier for active I/O of monthly fields
271      * wrong ladinit in various cost routines
272    o merge with interval (chkpt44c_post - chkpt44d_post)
273      * added missing EXCLUDE_MONITOR flags
274      * changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
275        (incompatible typ in MIN/MAX expressions caused problems
276        on IBM SP3)
277      * in genmake added variable MAKEDEPEND
278        plus resetting for case SunOS
279        added timer_stats.c routine for IBM SP3
280      * removed variables in dynamics
281    
282    ecco_c44_e16
283    o new ECCO checkpoint, the first since ecco_c43_e15
284      which is branched from MITgcm.
285      All changes were merged in between (see ecco-branch-mod? tags).
286    o last changes:
287      * assuming path for TAF and TAMC are known (e.g. in $path)
288      * genmake:
289        - added tools/xmakedepend to circumvene shortcoming of
290          SUN's makedepend (size too small)
291        - invoking ../tools/xmakedepend instead of makedepend
292        - changed compiler flags for case SunOS
293    
294    ecco-branch-mod5
295    o mod's to reproduce open boundary run
296    o enable field swapping for OB's and climatology
297    o update store directives for OB control
298    o added option ALLOW_OBCS_PRESCRIBE
299    o call of getobcs now out of obcs_calc (param. list modified)
300    
301    ecco-branch-mod4
302    o this is the second part of changes necessary to reconcile
303      the natl_box_adjoint verification (with and without grdchk).
304      >>>!!! CHANGES BETWEEN THE TAGS ecco-branch-mod3 !!!<<<
305      >>>!!!                      AND ecco-branch-mod4 !!!<<<
306      >>>!!! SHOULD BE MERGED INTO THE MAIN TRUNK      !!!<<<
307    - genmake: removed $S64 overwrite for case SunOS    - genmake: removed $S64 overwrite for case SunOS
308    - pkg/exf: update and corrections for field swapping and obcs    - pkg/exf: update and corrections for field swapping and obcs
309    - pkg/ecco: parameter lists for the_model_main, the_main_loop    - pkg/ecco: parameter lists for the_model_main, the_main_loop
# Line 226  o merge of relevant stuff from the ecco- Line 311  o merge of relevant stuff from the ecco-
311    - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice    - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
312                    updated checkpointing_lev... lists for obcs                    updated checkpointing_lev... lists for obcs
313    - model/src: minor changes in forward_step, plot_field    - model/src: minor changes in forward_step, plot_field
                added directive for divided adjoint in the_main_loop  
314    - pkg/mdsio: added mdsio_gl_slice    - pkg/mdsio: added mdsio_gl_slice
315    
316  o check parameters & config (chkpt44a_pre,post)  ecco-branch-mod3
317  o OBC and NonLin_FrSurf.  o this is the first part of changes necessary to reconcile
318      natl_box_adjoint verification (with and without grdchk).
319      This set of changes is relevant for ECCO only.
320      The next set/tag of changes (ecco-branch-mod4)
321      should be merged into the main trunk.
322      - update some options
323      - parameter lists of ecco_the_model_main and ecco_the_main_loop
324        differed from those of the MITgcm counterparts.
325    
326    ecco-branch-mod2
327    o update ecco-branch-mod1 to checkpoint44
328    o exclude from updates:
329      - verification/
330      - adjoint/
331      - pkg/cost
332      - pkg/ctrl
333      - pkg/ecco
334      - pkg/obcs
335      - model/src/the_model_main.F
336      - model/src/the_main_loop.F
337    
338  checkpoint44  checkpoint44
339    o apply Shapiro filter on T&S before calc_PhiHyd (stagger time stepping)
340  o fix bug in mom_vi_del2uv  o fix bug in mom_vi_del2uv
 o select when filters are applied ; add options to zonal_filter (data.zonfilt)  
 o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)  
 o update AIM experiments (NCEP input files)  
 o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)  
341  o added some stuff for AD  o added some stuff for AD
342    
343    ecco-branch-mod1
344    o based on c43
345    o replaced packages cost, ctrl, ecco, obcs
346    o removed MITgcm verif.'s, added ECCO verif.'s
347    o added lsopt, optim for line search optimization.
348    
349  checkpoint43  checkpoint43
350  o added two new advection tests  o added two new advection tests
351  o added global 4x4 degree ocean test  o added global 4x4 degree ocean test

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