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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.828 by jmc, Sun Jun 3 23:32:28 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o add S/R and diagnostics for oceanic mixed-layer depth
8    o move GMRedi call after all vertical mixing schemes (including KPP)
9    o pkg/thsice:
10     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
11      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
12    o pkg/obcs:
13     - bug fix for balance code
14    o pkg/seaice:
15      - allow values of SEAICE_elasticParm > 1
16      - add new parameter SEAICE_evpTauRelax as an alternative
17        to SEAICE_elasticParm
18      - make lsr boundary conditions free slip (by default), changes result
19      - add code for no slip boundary conditions for lsr
20      - set minimum of zeta to zero (and not 4e8) (changes results)
21      - add a cap on AREA after advecting AREA if seaice_growth is not called
22    o change calculation of Visbeck K:
23      - no longer depend on tapering scheme; instead, compute slope (limited
24        by GM_maxSlope). this is equivalent to what was comuted before with
25        clipping or linear tappering.
26      - fix vertical averaging (wrong by 1/2 level)
27      - leave the old version (but will not be maintained) within
28        #ifdef OLD_VISBECK_CALC / #endif
29      - update output of exp. ideal_2D_oce
30    o change error catch in calc_r_star to improve vectorization
31    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
32      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
33    o adjoint:
34      Re-organized adjoint checkpointing according to Matt Mazloff
35      (but with modifs/completions/cleanups)
36      Storing is now bundled into large arrays to optimized I/O
37      (and second step in cleanup of the_main_loop)
38    
39    checkpoint59b
40    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
41      - export/import (between ocean & coupler) fields needed for ocean DIC.
42    o pkg/seaice:
43      - get rid of three more exchanges seaice_calc_viscosities (required
44        different loop boundaries in seaice_lsr and seaice_ocean_stress)
45      - bug fix in seaice_ocean_stress (update of lab_sea required)
46      - reduce loop boundaries to necessary minimum also in seaice_evp
47      - go back to the old way of computing deltaC/Z as the adjoint likes that
48        better
49    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
50      passive tracer to an Age Tracer) + update output.txt
51    o pkg/exf:
52      - implement A-grid / C-grid selection for wind-stress input files.
53      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
54      for now, in exf_bulk_largeyeager04.F only :
55      - change implementation for case where windspeed + 2. components wind-stress
56        are read-in. AND use rhoConstFresh to convert evap.
57    o pkg/seaice:
58      - use correct EXCH_UV for wind-forcing (on A-grid).
59      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
60        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
61    o pkg/exf:
62      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
63      EXF_INTERPOLATION:
64      - merge global_with_exf/code version of exf_interp_read.F
65        to the main code ;
66      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
67        reading the file ; Important: This options needs to be defined to recover
68        previous code.
69        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
70      - no longer loose real*8 precision along the way when using exf_iprec=64.
71    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
72      - change discretisation of evp-solver in order to avoid another exchange
73        (changes lab_sea) and clean up a little
74      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
75        help the adjoint (this also changes the results slightly)
76      - add a few "_d 0" where they had been missing in seaice_evp.F
77      - cleaning up: remove unused seaice_calc_rhs.F
78    o pkg/exf: some cleaning-up:
79      - change various "constants" into runtime parameters
80      - cleaned-up Large&Yeager04 routine which should eventually
81        replace exf_bulkformulae.F (changed names of S/R and CPP)
82        and merged various ALLOW_ATM_WIND options
83     only used with thsice pkg (in thsice_get_exf.F):
84      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
85        which are used when useStabilityFct_overIce=TRUE (= the default)
86      - change default values of ice & snow emissivity and scale downward LW
87        by ice & snow emissivity.
88    o pkg/thsice:
89     fix few little problems, in thsice_calc_thickn.F:
90      - growth vertically (and not laterally) if iceFrac == iceMaskMax
91      - melt only laterally if hIce < hThinIce (as the comments say)
92      and in thsice_extend.F:
93      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
94      - start to form ice as soon as the minimum ice-volume is reachable.
95     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
96      and cpl_aim+ocn
97    o pkg/kpp
98     - move computation of surface related input fields to KPP into a new
99       subroutine kpp_forcing_surf.F
100     - remove wrong (within bi,bj loops) EXCH calls.
101     - little cleaning (add argument myThid in last position, cvs header ...)
102     - for now, fix conservation problem by exchanging KPPviscAz (may not
103       be the best fix)
104    o pkg/seaice
105     - check for inconsistent evp parameter/cpp-flag combination
106     - remove leftover errIO flat for obsolete name list error handling
107    o OpenAD
108     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
109    
110    checkpoint59a
111    o pkg/seaice: some parameter clarifications and a little bit of clean up
112    o pkg/thsice: rename run-time parameters:
113       himin       -> hIceMin
114       himin0      -> hThinIce
115       hihig       -> hThickIce
116       i0          -> i0swFrac
117       transCoef   -> bMeltCoef
118       frac_energy -> fracMelting
119      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
120       with default values (for now) that do not change the results.
121      remove old version of thsice vars advection in pkg/seaice.
122    o in FFIELDS.h:
123      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
124      - make pLoad & sIceLoad always available (but still only used if
125         ATMOSPHERIC_LOADING is #define).
126    o pkg/kpp: replaced _KPP_RL with _RL
127    o bug fixes for vertical diffusivity computations when both KPP and
128        3D diffusivity arrays are used.
129    o pkg/seaice: fix bug in evp solver, while doing that
130      - change (improve?) discretization of stress computations for both
131        cgrid-lsr and evp solver
132      - add a new routine to compute strain rates
133      - the above changes lab_sea results
134      - add no slip conditions for evp solver (off by default), lsr-version
135        may follow
136      - fix exchange for shear at Z-points (does not change lab_sea)
137      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
138        (to force the user to pick a time step since there is not "safe" way
139        of choosing it)
140      - add principal stress diagnostics
141      - rearrange fields for evp a little to avoid having to call a: too many
142        exchanges and b: exchanges for stress trensor components which we do
143        not have.
144      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
145        of evp, complete rewrite for lsr case (latter is does not yet work
146        in all cases)
147    o pkg/kpp: add code to have mixing in shelf ice caverns
148      - add myThid to all kpp routines (long overdue)
149    
150    checkpoint59
151    o pkg/exf:
152      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
153        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
154      - move exf header files from lower_case.h to UPPER_CASE.h ;
155        add missing cvs Header & Name
156      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
157      - add namelist param. selectStressGridPosition, exf_monFreq
158      - retire many _CLIM routines, and remove data.exf_clim
159        + params moved to data.exf
160        + climsst, climsss now handled by exf_set_gen, i.e.
161          climss?period=0 refers to constant field,
162          climss?period=-12 to monthly forcing
163      - split up namelists in data.exf
164    o pkg/seaice:
165      - remove seaice_exch and seaice_exch_uv
166      - remove superfluous exchange of theta
167      - add myThid to seaice_budget_ocean/ice
168      - add new interface for atmospheric wind forcing (C-grid only)
169        + new routine
170        + two new field (taux, tauy for stress over ice)
171        + removed one global field (DAIRN) for C-grid case only
172    o pkg/thsise
173      - 2nd set of modifs for thsice adjoint in conjunction with exf
174    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
175    
176    checkpoint58y_post
177    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
178      vertical diffusivity, similar to that in MOM4; turned on using
179      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
180      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
181    o Added capability for 3D specification of background vertical diffusion
182      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
183      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
184      "data" file that contains the 3D vertical diffusivity coefficients.
185    o ice dynamics (pkg/seaice) with thsice thermodynamics:
186      - add code within pkg thsice to advect & diffuse sea-ice fields
187      similar to (and will replace) what has been added in  seaice_advdiff.F,
188      but: - conserving Mass, Heat & Salt.
189           - better when using non-linear advection scheme (not yet fully tested)
190           - can also be used in atmospheric set-up (for now, only the diffusion).
191    
192    checkpoint58x_post
193    o IO option for global-file compact format:
194      - add options when generating topology (utils/exch2/matlab-topology-generator)
195      - add I/O capability (pkg/mdsio).
196      - adapt utils/matlab/rdmds.m to read this format.
197      for now long-line format not yet supported by pkg/mdsio (& exch2).
198    o shelfice: add a few diagnostics
199    
200    checkpoint58w_post
201    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
202      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
203      (and replace horiVertRatio in NH code).
204      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
205                         and tutorial_plume_on_slope (sensitive to truncation)
206    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
207      directly to drive seaice model (C-grid only)
208    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
209     - reintroduce computation of wind from stress,
210     - compute tau (in exf_bulkformulae.F) from windstress averaged to
211       mass points to avoid tau = 0
212     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
213    o rdmnc.m: make it work with "global" files created with gluemnc
214    o rdmnc.m : some improvements in dealing with singleton dimension
215      (tested on all testreport mnc output files).
216    o genmake2: disable pkg/profiles if netcdf test fails.
217    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
218    o move call to cal_readparms up to make calendar parameters/variable available
219      to all packages
220    
221    checkpoint58v_post
222    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
223      useDynP_inEos_Zc tested.
224    o pkg/exf: changes to properly interpolate/mask/scale initial fields
225    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
226      and portions thereof.  See read_cs.txt for description and examples.
227    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
228      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
229      following the great-circle arc between those 2 points.
230    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
231      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
232    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
233     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
234     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
235     - still needs work (not working with some options ; efficiency to improve)
236       and serious testing.
237     - use this scheme for temperature & salinity in 2 advection test exp.:
238       advect_xy & advect_xz, respectively.
239    
240    checkpoint58u_post
241    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
242    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
243    o testreport: add option "-skipdir" to skip some test.
244    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
245      momentum calculation.
246    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
247    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
248      remove checkpoint.F and the_correction_step.F (no longer used);
249      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
250    o add option (linFSConserveTr) to correct for tracer source/sink due to
251      Linear Free surface
252    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
253    o pkg/thsice: fix reading mnc-pickups
254    
255    checkpoint58t_post
256    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
257    o pkg/mdsio:
258     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
259       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
260       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
261     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
262     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
263       either MDS_READ_FIELD or MDS_WRITE_FIELD )
264     - new S/R (to replace MDSWRITEMETA), which allows to write more
265       informations (variable names, time ...) to meta files.
266     - modify rdmds.m to give back the meta file content.
267    o pkg/diagnostics: change vertical interpolation to be safer, and more
268       flexible (define p-levels to interpolate to in data.diagnostics);
269      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
270       diagnostic pointer.
271    o pkg/seaice: more cleaning up of seaice_growth, added many comments
272    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
273    o fix multi-category seaice:
274     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
275       SEAICE_MULTICATEGORY
276     - fix short wave heat flux
277    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
278       and allow to use EVP solver. Change forward lab_sea: test both EVP
279       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
280    o Initial check-in of lab_sea adjoint
281      (very similar to natl_box_adjoint/code_seaice)
282      * used C-grid and EVP solver
283      * used KPP, GM/Redi
284      * uses inAdExact=.TRUE.
285      * gradient checks fail for both ADM and TLM
286        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
287        f.d. gradients actually seem more problematic than ADM, TLM gradients;
288        issue is related to forward mismatch between g77 an ifort
289    o pkg/seaice: overhaul of thermodynamics
290     - growth.F and groatb.F are replaced by new routine seaice_growth.F
291     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
292     - move a few global fields out of SEAICE.h into seaice_growth.F and
293       make them 2D (FICE/QNETO/ ...)
294     - remove FO (it is the same as QNETO)
295     - introduce a few local fields to avoid modifying external fields such
296       as atemp, etc.
297    
298    checkpoint58s_post
299    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
300      changed exf_set_gen.F so that
301        genperiod=0 means input file is one time-constant field and
302        genperiod=-12 means input file contains 12 monthly means
303    o CG2D: use pre-computed solver main-diagonal (stored in common block);
304      this affects truncation error ; generate new output file for exp. which
305      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
306        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
307        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
308        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
309        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
310        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
311    o start implementation of deep-atmosphere and anelastic formulation
312    o verification: remove 2nd copy of input files and use script "prepare_run"
313      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
314    o mom_common/vecinv/fluxform: fix a few initialisation isssues
315    o profiles: fix for multithreaded case
316    
317    o diagnostics: rename few diags:
318      s/'PRESSURE'/'RCENTER '/g
319      s/'TICE    '/'oceFreez'/g
320      s/'TAUX    '/'oceTAUX '/g
321      s/'TAUY    '/'oceTAUY '/g
322      s/'SWFLUX  '/'oceQsw  '/g
323      s/DIFx/DFxE/g
324      s/DIFy/DFyE/g
325      and add few ocean-forcing diagnostics:
326      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
327    o modifications to pkg/seaice/growth.F and budget.F, which change results of
328      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
329      as actual snow thickness.  It now refers everywhere to effective snow
330      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
331    
332    checkpoint58r_post
333    o modifications to pkg/seaice/growth.F, which change results of
334      lab_sea experiment: fixes pertain to melting snow over open water, to
335      masking EVAP under sea ice, and to using the correct AREA variable for
336      computations of EVAP, PRECIP, HSNOW, and GHEFF
337    o add ability to read bathy, salt, and theta using MNC (off by def)
338    o add flooding algorithm and advection of HSNOW for pkg/seaice;
339      both are turned off by default and do no change any results
340    o seaice advection with pkg/thsice: a step toward the use of non-linear
341      advection scheme, but #ifdef or commented out for now (requires more EXCH).
342    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
343      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
344      in natl_box (affects results @ truncation level: update output.txt)
345    o multi-threading and IO:
346      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
347      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
348        (needed to work with SingleCpuIO): tested in all verif. exp.
349    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
350      affects the results (but none of the verification test uses this scheme).
351    o Adding some pkg/diagnostics capability to pkg/seaice
352      (will certainly be subject to changes)
353    o ctrl: adding new control variables:
354      lwflux, lwdown, evap, snowprecip, apressure, runoff
355    
356    checkpoint58q_post
357    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
358      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
359      high_res_cube configuration by 4% on Columbia.
360    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
361      add (in global_with_exf/code) a version of EXF_INTERP_READ without
362      dynamical allocation (seems to work in multi-threaded).
363    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
364      single CPU io) so that TAF does not have to see EESUPPORT.h
365    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
366    
367    checkpoint58p_post
368    o obcs: stop if obcs is used with useCDscheme = .true.
369    o shelfice:
370     - fix a sign error so that no slip at shelfice interface works
371     - remove stop for combination non-hydrostatic code and shelfice. That does
372       not mean, that the results are correct, but at least they are numerically
373       stable
374    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
375    o added adjoint exch routined for all exch*3d* routines
376      and updated flow directives
377    
378    checkpoint58o_post
379    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
380      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
381    o change controling S/R for writing pickup file (new S/R do_write_pickup)
382      and clean-up reading/writing of pickup files.
383    o fix local version of read/write pickup (NH part) in rotating_tank/code
384    o simplify EXCH interface:
385     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
386     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
387    o added the regrid package
388    o shelfice:
389     - add a simple boundary layer scheme to reduce noise
390     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
391    
392    checkpoint58n_post
393    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
394       local variable (not in common block).
395    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
396      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
397      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
398        to work with SingleCpuIO.
399    o add "_d 0" to real constant of pkg/cfc subroutines ;
400       update exp. cfc_exemple & tutorial_cfc_offline output files.
401    o multi-threading and IO:
402      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
403        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
404      - barrier before and after reading.
405      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
406      - avoid using MDS_WRITELOCAL for LAND pkg output.
407      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
408        common-block variables ; Allows multi-threading with master-thread IO.
409    o change default MAX_NO_THREADS from 32 to 4 ;
410      and stop cleanly when MAX_NO_THREADS is too small.
411    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
412    
413    checkpoint58m_post
414    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
415       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
416    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
417       keep global_ocean.90x40x15 (for AD testing) with former secondary test
418       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
419    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
420        add MITgcm_tutorials (= code + all the tutorials)
421    o ecco, option to compute cost for total ssh (mean+anom)
422    o consistent with addition of ptracer and ssh in pkg/profiles
423    o profiles: adding ptracer and ssh
424    o testreport: change multi-test output-file name
425      (from output.txt.{name} to output.{name}.txt)
426    o profiles: now ok for mutli-tiles case
427    o seaice: add 4 parameters for different advection schemes for area,
428      (effective) seaice thickness, enthalphy, and snow height. Their default
429      is the standard parameter SEAICEadvScheme
430    o calc_gw:
431     - add cosFacU in zonal viscous flux (harmonic.visc.).
432     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
433       of tutorial_plume_on_slope.
434    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
435    o calc_gw: true flux-form, account for horizontal grid spacing.
436      update rotating_tank results, but not plume_on_slope (affected at
437      truncation level, 11 digits).
438    
439    checkpoint58l_post
440    o calc_gw:
441     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
442     - remove side-drag for now (need to fix it); update plume_on_slope results.
443     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
444    o commit code to make SST/SSS weights spatially variable
445      (based on either variable in-situ or variable initial T/S weights)
446    o pkg/ecco:
447      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
448        now based on horizontally varying weights wthetaLev, wsaltLev
449      * cost_averagesflags now returns year indices in addition to day, month
450      * sflux balance is performed on annual basis
451        (sflxumm, sfluxmm2, bal_sfluxmm)
452      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
453        including separate counting and multipliers
454    o pkg/rbcs
455      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
456    
457    checkpoint58k_post
458    o testreport:
459     - always build in dir. "build" (if not there, mkdir build instead of building
460       & running in input)
461     - run in dir run (if it exists), in build otherwise.
462     - call prepare_run (if input/prepare_run exists)
463     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
464    o pkg/exf modifications to interpolation and rotation routines for more
465       reasonable treatment of North Pole singularity: for tracers North Pole
466       value is set to northernmost zonal-mean value, for zonal velocity it is
467       set to zero, and for meridional velocity it is set to northernmost value.
468    o pkg/exf/exf_check_range.F
469     - add tile index to diagnostics and move stop statement to the very
470       end of the routine.
471    o pkg/diagnostics: (diagnostics_main_init.F)
472      define title of isomorphic variables according to the current config.
473    o pkg/thsice with pkg/seaice dynamics:
474    - fix domain of computation (interior only, required for exf) and do exchanges
475    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
476    o towards a standard way of dealing with multi-threading in MONITOR
477      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
478    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
479       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
480    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
481    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
482    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
483       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
484    o tracer advection:
485     - clean-up and simplify calc_common_factors.F
486     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
487       advection subroutine (but still not used within DST advection S/R)
488    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
489    
490    checkpoint58j_post
491    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
492      from file (collects calls previously in FORWARD_STEP)
493    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
494    o adjoint store dir. adjusted accordingly
495    o genmake2
496      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
497    
498    checkpoint58i_post
499    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
500      on wind stress (SEAICEstressFactor defaults to 1.)
501    o Total number of Timers is finite (<=40): comment out 2 non-essential one
502      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
503    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
504      on CS-grid: no longer loosing mass.
505    o exf & curvilinear-grid: no longer modify longitude xC & xG.
506    o pkg/ggl90: fix sloppy output and fix a bug
507    o pkg/seaice: added SEAICEuseEVPpickup parameter
508      - Set to false in order to start EVP solver with
509        non-EVP pickup files when using SEAICEuseEVP
510      - fix sign error in diffusion in seaice_calc_rhs
511    
512    checkpoint58h_post
513    * Modifications for bottom topography control
514      o replace hFacC by _hFacC at various places
515      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
516      o add non-self-adjoint cg2d_nsa
517      o update autodiff support routines
518      o re-initialise hfac after ctrl_depth_ini
519      o works for 5x5 box, doesnt work for global_ocean.90x40x15
520    * Adding verification for 5x5 box (4-layer) bottom topography control
521    
522    checkpoint58g_post
523    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
524       used for mean seasonal cycle, mean diurnal cycle); add an example
525       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
526    o pkg/ggl90:
527      - add parameter (minimum surface kinetic energy)
528      - fix bug (avoiding division by zero)
529    o couple pkg/thsice to pkg/seaice:
530      - modify advection in seaice to accomodate new scalar fields to be advected
531      - only muliDimAdection scheme work with seaice/thsice
532      - mapping of thsice-variables to seaice-variables, back and forth
533      - does not break the verification experiments, but does not give the
534        desired results either
535    o pkg/seaice
536      - make (default) second order advection a bit less confusing?
537    
538    checkpoint58f_post
539    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
540      to pkg/seaice):
541      - new routines thsice_map_exf and thsice_get_exf provide the interface
542      - add an additional formal parameter to thsice_solve4temp
543    o pkg/exf:
544      - add new fields wspeed, snowprecip (to be able to couple to thsice)
545      - correct Stefan-Boltzmann constant
546      - new parameter for longwave surface emittance
547      - separate some stuff from exf_bulkformulae into new routines  
548        exf_radiation, exf_wind
549      - add new parameters and constants: longwave emissivity for ocean, ice
550        and snow, evaporation parameters over ice
551      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
552        either wind from stress or stress from wind
553    o pkg/thSIce:
554    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
555    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
556       and THSICE_CALC_THICKN
557    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
558    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
559      to make debugging easier.
560    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
561    o pkg/bulk_force:
562      - clean-up comments and parameters ;
563      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
564    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
565      generate new output for test-experiment: aim.5l_cs.thSI
566    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
567      testreport accordingly
568    
569    checkpoint58e_post
570    o SEAICE_CGRID adjoint done
571    o R_STAR adjoint implemented.
572      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
573      * need to sort out init. of h0facc, etc.
574    o Make pkg/profile fully independent of ecco,cost, etc. stuff
575      to be able to use it in pure forward.
576    
577    checkpoint58d_post
578    o upgrade simple test-experiment to tutorial example:
579     step.1: duplicate the experiment and (step.2) will remove the old copy.
580      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
581      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
582      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
583      tutorial_global_oce_biogeo    <- copy of dic_example
584      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
585      tutorial_plume_on_slope       <- copy of plume_on_slope
586      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
587      tutorial_global_oce_optim     <- empty for now (David ?)
588      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
589     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
590    o correct a sign problem in cost_scat.F
591    o obcs and ptracers: fix boundary conditions for advections schemes
592      with larger stencil
593    o thsice adjoint: start
594    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
595      completeness
596    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
597      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
598    o ptracers adjoint:
599      * avoid extensive recomputatations
600      * fix missing re-init. of gptr (missed by TAF)
601    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
602      me to turn off the excessive output to STDOUT that this package produces
603    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
604      and add those terms in Vector-Invariant formulation.
605    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
606      if the control period (xx_hfluxperiod etc) is 0
607    o in profiles pkg, clean routines and fix details
608    o in ecco pkg, reading ssh data:
609      fix problem in case the model does not start at iter0=0
610    o fix mnc-pickup/restart for ptracers
611    o new package prifiles:
612      code to compute profile-based cost by Gael Forget
613      (modifs in ecco, ctrl, autodiff)
614    o Benign bug fix in initialization (spotted by M. Mazloff) of
615      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
616    
617    checkpoint58c_post
618    o adjoint: finish NLFS adjoint and provide reference output in
619      verification/global_ocean.90x40x15/results_ad_nlfs
620    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
621      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
622      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
623      with SEAICE_CGRID defined.
624    o move calendarDumps from "data" to "data.cal" and clean-up the code
625      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
626    o add useEXF & useCAL flags (for now, set in hard-coded way)
627    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
628      (were missing in NH mode, and wrong in quasihydrostatic mode).
629      waiting for Chris updated version of calc_gw to add those CALLs.
630    o fix bug in quasihydrostatic S/R ;
631      add a test for this option: global_ocean.90x40x15.qshyd
632    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
633      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
634    o add on/off flag useOffLine for package OFFLINE
635    o seaice:
636      - modify advection so that it works also on the C-grid
637      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
638        problem in multi-tile runs with C-grid
639      - add flags for clipping ice velocities and/or masking solver forcing
640      - fix drag (ocean on ice) formulation and a bug that caused noise in the
641        C-grid solver
642      - added a few comments to seaice_diffusion.F
643      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
644        are now exclusive)
645      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
646        required re-ordering the code a little:
647       + make DAIRN global variable (defined in SEAICE)
648       + move computation of the viscosities eta and zeta into a new separate
649         routine (because I need to recompute them in seaice_ocean_stress.F)
650    
651    checkpoint58b_post
652    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
653      update output.txt of exp. aim.5l_cs.thSI
654    o various mnc cleanups and improvements:
655      + shrink lookup tables by factor of ~4
656      + better error reporting when running out of lookup space
657      + able to handle longer path/file names (up to 500 chars)
658    o adjoint:
659      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
660      - TBD: "hidden" mom_vecinv recomp. in dynamics
661    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
662     (allow to differentiate between forcing components using new integer flags:
663      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
664     and add new flag to put Dissipation tendency out of Adams-Bashforth.
665    o ecco
666      - enable trend removal from SSH anomaly obs.
667    o adjoint
668      - a fix for PmEpR when #undef EXACT_CONSERV
669      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
670      - try to fix "hidden" recomp. in forward_step for NLFS
671        (NLFS seems broken sometimes after I checked it in)
672    o seaice:
673     - add c-grid version of the dynamic solver:
674       + three new routines that are the c-grid substitute lsr, dynsolver
675         and ostres
676       + put a few fields that were local to dynsolver into global common
677         blocks, so that I can move the computation of stresses etc into
678         seaice_lsr (saves coding but may break the adjoint).
679     - replace more hardwired parameters by runtime parameters
680     - add ice masks that mask the rhs of the implicit solvers where there
681       is no ice (commented out in seaice_dynsolver, because i am not sure
682       if this works properly), eventually this should replace the clipping
683       of ice velocities in seaice_dynsolver to +/-40cm/s.
684    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
685      include it only where its needed
686    o move balancing of fluxes before the call of external_forcing_surf
687    o seaice:
688      - correct units of turning angles (now they are really in degrees)
689      - move computation of GWATX/Y out of main routine into dynsolver
690      - initialize GWATX/Y in seaice_init
691    o Apply mask on Fresh-Water flux (needed for SSH forcing).
692      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
693    o seaice: add runtime flags for turning angles (default to zero)
694    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
695      and trend from exf forcing and ctrl control adjustments
696    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
697      (since checkpoint57x_post)
698    o change the default rotation period to 86164.s = the Earth rotation
699    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
700      and based on a reference stratification. Tested within hs94.cs-32x32x5.
701    o seaice advection: add code for choosing between the default (2nd order
702      central differences) and multiDim advection schemes provided by
703      pkg/generic_advdiff
704    o seaice:
705      - removed all references to SEAICE_GRID.h fields from
706        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
707        (cubed-sphere configuration will change a little)
708      - grid computations in seaice_init are obsolete now.
709      - cleaned up code a little so that is easier to read (hopefully).
710      - added new (better?) discretizations of default advection and diffusion
711        (turn on with SEAICEuseFluxForm)
712      - replace 1 in 3d global fields by kSurface in growth.F
713      
714    checkpoint58a_post
715    o seaice:
716      - bug fix in advect.F
717    o shelfice:
718      - separate shelfice load anomaly from pload (breaks with time
719        dependent forcing), => introduce constant field shelficeLoadAnomaly.
720        Its default is 0., but it may be computed more cleverly from (unknown)
721        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
722        done offline. A good approximation of the pressure load anomaly is
723        necessary to avoid large initial adjustment processes underneath
724        deep-reaching shelfice.
725      - small fix in ISOMIP shelfice_thermodynamics
726      - add more sophisticated thermodynamics of Hellmer (1989), this is
727        now the default
728      - give a few constants more intuitive names
729    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
730      if bulk formulae are used in long integration (especially EmPmR). Turn
731      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
732      if balancePrintMean, the imbalance that is substracted is printed to
733      STDOUT.
734    o fix bug (typo) in obcs_apply_eta.F
735    o add a new package shelfice which enables us to model the circulation
736      underneath shelf-ice with draughts of hundreds of meters.
737     - works
738     - to do: + include improved thermodynamics
739              + check whether kSurfC (from model/inc/SURFACE.h) can be used
740                instead of new field kTopC
741              + can we use topoFile, Ro_surf and existing code in ini_depth.F
742                instead of new field R_shelfIce and new code in ini_depth.F
743                and ini_mask_etc.F?
744              + adjust vertical mixing schemes?
745    o seaice pkg:
746     - add a cpp-flag to include a simple formula for a salinity dependent
747       freezing point of sea water at the surface
748     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
749       meridional stresses are now different (and hopefully correct)
750    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
751       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
752       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
753    o pkg/diagnostics: add options and parameters for regional-statistics
754       diagnostics ; define regions by reading a region-mask from a file
755       (might add other options later)
756    o pkg/bulk_force:
757     - add option and parameters to use AIM surface-flux formulae.
758     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
759       others forcing fields (defined in PARM05, parameter file "data") are loaded
760       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
761     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
762     - use the right EXCH call for uwind,vwind (to work on CS-grid).
763     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
764       and parameters (note: calcWindStress replaces .NOT.readwindstress).
765     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
766    
767    checkpoint58
768    o add "--embed-source" option to genmake2 which, when the supporting
769      tools can be compiled (as determined by genmake2) will turn on the
770      embed_files package which then embeds the entire MITgcm source code
771      (*.[fFhc] + Makefile) used for the build within the executable
772      - requested by CNH but off by default
773      - adds a paltry <9MB to the mitgcmuv executable in most cases
774      - only writes the output when useEMBEDSRC in eedata is true
775    o clean up 3-dim. relaxation codes:
776      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
777      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
778      * Thanks to Tom Haine for testing!
779    
780    checkpoint57z_post
781    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
782      affects output (@ truncation level) of exp. plume_on_slope ; updated.
783    o fix the pickup behavior for obcs in combination with ptracers
784    o fix a bug in ptracers_external_fields_load
785    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
786      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
787    o transfered surface NH pressure to eta field (if exactConserv).
788    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
789         and update lab_sea output.txt file.
790    o completing 3-dim. relaxation code: additional term
791         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
792      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
793      * At compile time, in "EXF_OPTIONS.h" set
794          #define  ALLOW_CLIMTEMP_RELAXATION
795          #define  ALLOW_CLIMSALT_RELAXATION
796      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
797          tauThetaClimRelax3Dim = 15552000.0,
798          tauSaltClimRelax3Dim  = 15552000.0,
799      * 3 cases:
800          1) Use a constant-in-time 3-dim. field
801          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
802          3) Real-time relax. to time-evolving prescribed field
803    o Adding Laplacian-type smoothness constraint on
804      initial and boundary (forcing) controls (ic, bc)
805      * enable at compile-time via
806        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
807      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
808      * Absolute scale somewhat unclear so far
809      * no area weighting was included since no other cost term does so far
810    
811    checkpoint57y_post
812    First step for a NLFS adjoint
813    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
814    o new init. routines for calc_r_star, calc_surf_dr
815    o still need to deal with ini_masks_etc
816    o testreport seemed happy
817    checkpoint57y_pre
818    
819    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
820    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
821    o add new offset feature to offline pkg (plus minor cleanup)
822    o cfc fixes for final year of integration
823    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
824      be in GCHEM_OPTIONS).
825    
826    checkpoint57x_post
827    o fix testreport Pb in multiple test experiment.
828    o cleanup our namelist syntax in verification:
829      - make it more F95 standards compliant (some work still needed)
830      - allows the vast majority of our tests to work with gfortran
831    o Non-Hydrostatic:
832     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
833     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
834    o Allow to apply AB on T,S rather than on AB(gT,gS):
835     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
836     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
837       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
838     - need a "clever" read_pickup to restart from the other AB formulation
839    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
840    o remove some unused variables (reduces number of compiler warnings)
841    o adjoint
842      * Disable useVariableViscosity for adjoint for time being
843        (there are a number of extensive recomputations)
844      * Initialize certain variables needed for adjoint
845    
846    checkpoint57w_post
847    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
848                 fix the singleCpuIO RS version of MDSWRITEFIELD
849       and add a WARNING if using globalFiles=T with multi-processors.
850    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
851      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
852    o tracer advection scheme:
853      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
854       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
855       was not very convenient).
856      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
857       (further tests needed for the implicit DST & Flux-Limiter schemes).
858    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
859      and sRef for convenience, handy, when you want to initialize
860      ptracers in a large domain with a constant non-zero value. Also,
861      untangle ptracers_init.F a little.
862    
863    checkpoint57v_post
864    o change dome exp. to use variable viscosity in side-drag terms.
865    o remove all the files from the cfc_offline test since they are now
866      incorporated into tutorial_cfc_offline which has been producing
867      identical results for a few days of testing
868    o add new parameter: sideDragFactor to enable half-slip-side BC
869      and change side-drag S/R to use viscosity from mom_calc_visc
870      (can switch back by setting sideDragFactor=0.); affects results at
871      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
872       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
873    o vorticity & strain are now computed without masking, to account for
874      no-slip-side BC in variable viscosity calculation ; mask is applied
875      anyway later on, before computing advection/coriolis terms.
876    o modify exp4 to test new obcs support for reading from external files
877      and for passive tracers
878    o fix behavior of ptracers_monitor when monitor output is written to a
879      netcdf-file; still not independent of monitor.F (writes in the same
880      file).
881    o change default value of tRef (put a uniform, meaningful value for ocean
882      & atmos) and initialize sRef (was missing, as Martin mentioned).
883    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
884      to be proportional to enstrophy dissipation length.  Thus,
885       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
886      This is now consistent with Smagorinsky and with the manual.
887    
888    checkpoint57u_post
889    o OBCS and PTRACERS: add open boundary support for passive tracers
890      - either use homogenous (pseudo) v.Neumann conditions or prescribe
891        OB-values from file; this is not different from the way theta and salinity
892        are treated
893      - however, Orlanski-radiation conditions are not supported, and the model
894        will stop if you use pTracers and Orlanski at the same time.
895      - beefed up the rountine obcs_external_fields_load: now only those open
896        boundary values are overwritten with values from files for which there
897        are really files, otherwise the OB-fields remain untouched. This makes
898        it possible to use different OBs at different ends of the domain (as
899        with EXF)
900    o reduce number of exch calls in shap_filt (s2).
901    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
902      truncation level) 4/5 MLAdjust test results (11&12 digits match).
903    
904    checkpoint57t_post
905    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
906    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
907      same truncation, independent of the face number: affects affects several
908      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
909    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
910      note that biharmonic viscosity + no-slip was not tested in any experiment.
911    o fix bug in non-linear free-surf side-drag ; generate new output for
912      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
913    o make mnc honor the writeBinaryPrec flag for most kinds of output
914    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
915    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
916      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
917    o add brackets in multi-terms sum to get same truncation, independent of
918      the face number (manage to get exactly same value of gU,gV at the cs-edge)
919      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
920    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
921      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
922      a maximum grid-scale Reynolds number.  Also, changes all length calculations
923      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
924      Suggested values of viscosity parameters found in mom_calc_visc.
925      Many new viscosity diagnostics available.
926    
927    checkpoint57s_post
928    o Add clearing-house for viscosity calculations, mom_calc_visc and
929      correct numerous bugs in LeithD and Smagorinsky discretizations.  
930      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
931      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
932      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
933      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
934      The Strain-Tension form is now called with useStrainTensonVisc=.true.
935      ViscAhStrain and viscAhTension are now retired.
936    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
937    o In response to JMC's bug report, genmake2 now ignores any soft-links
938      that it finds in the *current* directory when searching for files.
939      Soft-links found in any other source directories will still work as
940      they did before.
941    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
942      a C routine to unlimit the stack size
943    o mnc-ify pkg/aim snapshot vars
944    o mnc-ify pkg/land as requested by Daniel
945    o various changes to mnc including:
946      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
947      - output can now be grouped so that all files within a group
948          change the ITER portion of their names in lock-step together
949      - can now read ("global") PER-FACE (in addition to PER-TILE) files
950          and works with both EXCH1 and EXCH2 (but needs more testing)
951      - writing works for all verification test cases w/ g77 on Linux
952    
953    checkpoint57r_post
954    o make MNC variable initialization happen earlier
955    o add diagnostics for (almost) each term of the momentum Eq.
956    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
957    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
958    o remove MINIMAL_TAVE_OUTPUT option ;
959      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
960    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
961      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
962    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
963    o add time-dependent SST, SSS control
964    o cost terms in ecco/ modularized (new cost_generic.F)
965    o cost_averages routines are modularized (new cost_averagesgeneric.F)
966    o new infrastructure for seaice model vs. obs misfits in seaice/
967      * driver from the_main_loop.F is seaice_cost_driver.F
968      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
969      * gradient check in Exp. 6a of natl_box_adjoint/
970    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
971      (see README file)
972    
973    checkpoint57q_post
974    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
975    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
976      - bug was reported by Jean-Michel and Ian Fenty
977    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
978      update exp. cpl_aim+ocn output.
979    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
980      Needed for high-res. runs with large global files
981      to be able to limit tapelev size
982    o Changed some tests for adjoint:
983      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
984      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
985      * global_ocean.90x40x15/ back to default 3-level checkpointing
986    o Modifications to enable scripted COMMON to MODULE conversion
987      * verification/OpenAD/code/ has necessary scripts and description;
988      * converts, compiles and runs successfully;
989    
990    checkpoint57p_post
991    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
992    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
993      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
994    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
995    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
996      (was already the case for dissipation with mom_vecinv,
997       and also the case for grad.PhiHyd when staggered-timeStep)
998      This will allow to put dissipation out-off the AB time-stepping.
999     Unfortunately, affects truncation error. Update output of exp. that "fails"
1000      (cg2d matching number) and leave the others for later: front_relax(10),
1001      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1002      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1003    
1004    checkpoint57o_post
1005    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1006      (2) its ready to be documented during the 20050801 DocFest
1007    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1008      for ideal_2D_oce and lab_sea on linux_ia32_g77
1009    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1010      in global1x1_tot/code_seaice_adj to access indices 32, 33
1011      (worth another tag)
1012    
1013    checkpoint57n_post
1014    o adding precip control xx_precip 32
1015    o adding swflux control xx_swflux 33
1016    o Replacing 10 forcing penalty cost routines by 1 generic.
1017    o Implementing partitioning in time-mean and variable adjustment
1018      for atmos. state.
1019    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1020    o in natl_box_adjoint:
1021      * updated exp 1 to 10
1022        (but does not have time-mean vs. variable split results yet)
1023    o updated global1x1/*_seaice_adj/
1024      to incorporate latest changes
1025    o enable useSingleCpuIO for mdsio vector routines
1026      (applies in particular to tapelev I/O)
1027    o removed inefficient K-loop in all active_file*control*.F
1028    
1029    checkpoint57m_post
1030    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1031      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1032    o pkg/exch2: filling of face-corner halo regions is optional
1033      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1034    
1035    checkpoint57l_post
1036     tag before updating tutorials (pre-release-2)
1037    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1038       for output and interpolation of input fields onto model grid)
1039    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1040       Affects results of exp. rotating_tank ; update output.txt.
1041    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1042          and taking the square quantity and/or using a fraction-weight field.
1043    o fix aim_diagnostics_init.F mate numbers.
1044    o add mnc output capability to diagnostics/diagstat and update
1045      our cvsignore files for the ACSII output generated
1046    
1047    checkpoint57k_post
1048    o lab_sea now uses diagnostics package and provides a suite of
1049      new EXF diagnostics output.
1050    
1051    checkpoint57j_post
1052    o exf
1053      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1054        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1055        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1056      * extended diagnostics output
1057        - now includes all EXF variables
1058        - hs, hl moved to common block
1059        - separate S/R for diagnostics, called after ctrl vector is added
1060        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1061        - EXFqnet contains true Qnet (i.e. includes qsw)
1062      * updated verif. lab_sea, global_with_exf
1063      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1064        to ensure that diagnostics sees a true EXFqnet
1065    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1066    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1067      several times with different frequencies.
1068    o mnc-ify the thsice package as requested by Daniel Enderton
1069      - the monitor--MNC output needs work
1070      - many attributes need to be added (most are currently blank)
1071    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1072      - many attributes need to be added (most are currently blank)
1073    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1074    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1075    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1076      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1077         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1078    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1079     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1080    
1081    checkpoint57i_post
1082    o Diagnostics package was changed: diagnostic allocation is now deactivated
1083      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1084    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1085      add 1rst Order upwind vertical Shear.
1086    o add a quick fix for A/B checkpointing in OFFLINE mode
1087    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1088      end-run around the C/Fortran linking horror in eesup/src/timers.F
1089    o added pkg/runclock: allows user to terminate run based on wall clock
1090    o added non-hydrostatic scaling parameter: nh_am2
1091    o pkg/my82: futile attempt to make results compiler-independent by adding
1092      some "_d 0", etc. no effect.
1093    o for mnc output, fill the 'T' coordinate var with myTime and create a
1094      separate 'iter' variable for iteration count
1095    o pkg/diagnostics:
1096      add new capability: output of Global/Regional & per-level statistics ;
1097      tested against monitor output (including land & thSIce) on various exp.
1098    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1099    
1100    checkpoint57h_done
1101      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1102      data.diagnostics, data.gchem, data.ptracers) is done.
1103    
1104    o pkg/diagnostics: prepare for Global/Regional statistics.
1105      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1106    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1107      and rename it: DIFFERENT_MULTIPLE
1108    
1109    checkpoint57h_post
1110    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1111    o pkg/diagnostics: change output frequency, now in seconds (instead
1112      of Nb of iterations). This requires to change data.diagnostics.
1113    checkpoint57h_pre
1114    
1115    o in mnc, let the user create the output dir if both mnc_outdir_date
1116      and mnc_outdir_num are false
1117    o add fflags() to pkg/diagnostics which allows one to specify, on a
1118      per-file basis, the file precision [default behavior is unchanged]
1119    o added diagnostics to pkg/kpp, including computation of mixed layer
1120      depth based on a temperature/density criterion
1121    o updated verification/natl_box to test the new pkg/kpp diagnostics
1122    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1123    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1124    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1125      not mnc -- this mistake was found by JMC and is now corrected
1126    
1127    checkpoint57g_post
1128    o add Adams-Bashforth 3rd Order time stepping:
1129      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1130      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1131    checkpoint57g_pre
1132    
1133    o make lambda[Theta,Salt]ClimRelax spatially varying
1134      (default remains spatially uniform constant based on tau)
1135    o added new control variables
1136      * init. uVel, vVel, etanN
1137      * lambda[Theta,Salt]ClimRelax
1138    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1139      (suggested by G. Forget)
1140    
1141    checkpoint57f_post
1142    o add parameter "baseTime" = model base time = time at iteration zero
1143      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1144      account for baseTime shift
1145    o move Coriolis arrays from PARAMS.h to GRID.h
1146    checkpoint57f_pre
1147    
1148    o mnc-ifying the seaice package
1149    o introduced an alternative length scale calculation for use in the limiting
1150      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1151    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1152    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1153      as well as grad(vort3).  Made it compatible with both approximate form
1154      for the cubed sphere and full form of these gradients.  Added flag
1155      useFullLeith to select between approximate and full form.  
1156    o add "d0" in getcon.F to reduce differences between compilers/platforms
1157      update output.txt of exp. fizhi-gridalt-hs
1158    o change port_rand funtion to allow to set the seed.
1159    o fix obscure MNC bug involving conversion between reals and integers
1160      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1161        new version is now more standards-compliant
1162    o adjoint-related modifications
1163      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1164      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1165      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1166    
1167    checkpoint57e_post
1168    o Adding eddy stress controls a la Ferreira et al.
1169    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1170    
1171    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1172      update output.txt of exp. fizhi-gridalt-hs
1173    o add more "Z" dimensions and associated coordinate vars to MNC
1174    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1175    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1176      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1177      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1178      months and years.  Requires pkg/cal.
1179    o diagnostics: add pickup functionality
1180      - off by default for backwards compatibility
1181      - current version only uses MDSIO -- MNC will be added
1182    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1183    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1184    
1185    checkpoint57d_post
1186    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1187    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1188      output from the diagnostics package
1189    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1190    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1191      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1192    o add coordinate variables to the MNC output from the diagnostics package
1193    o change MNC-flags default value: true when useMNC=TRUE
1194    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1195      the ability (off by default) to read the grid information using MNC
1196    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1197    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1198    o do snap-shot diagnostics at the middle of the time-interval (instead of
1199      at the end).
1200    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1201      new test for AIM with thSIce + slab-ocean
1202    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1203    o move state variable diagnostics to the beginning of the time step ;
1204      (note: still needs some work specially for snap-shot diagnostics)
1205      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1206    
1207    checkpoint57c_post
1208    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1209    o generate new output.txt files on faulks with g77 & the new -ieee option
1210    checkpoint57c_pre
1211    
1212    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1213      update output.txt of exp. global_ocean.90x40x15
1214    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1215      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1216    o add saltFlux(+File) forcing capability with periodicExternalForcing
1217    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1218    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1219    o improvements for the MNC output from DIAGNOSTICS:
1220      - correct handling of the unlimitied dimension
1221      - all dims now have associated coordinate variables
1222      - variables located at U, V, and Corner ("Z") points are now written
1223        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1224        *all* data points are output
1225    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1226    o added pkg/seaice/seaice_monitor.F
1227    o mdsio_readfield.F can now read files visible only to master MPI process.
1228    o pkg/seaice: some test code for ice-modified ocean stress
1229    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1230      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1231      spurious negative numbers for precipitation and humidity.  Will cause
1232      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1233    o pkg/ctrl/
1234      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1235        May be enabled via doPackDiag
1236      *  introduce z-scaling of
1237         + gradient (doZscalePack) and
1238         + control (doZscaleUnpack)
1239    o pkg/mdsio/
1240      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1241      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1242    
1243    checkpoint57b_post
1244    o simplify options in diagnostics_fill arguments (remove weird combinations)
1245    o fix MNC coordinate variables so that they now contain per-face index
1246      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1247      general, EXCH2 grids are only aligned to a "local" coordinate system
1248    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1249    o Implement instantaneous output within pkg diagnostics:
1250      setting a negative frequency in data.diagnostics produces
1251     "snap-shot" output (as opposed to time-average if freq > 0)
1252    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1253      NOTE: change ptracer diagnostics name: use 2 characters to work with
1254            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1255    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1256      becomes the coordinate variable for the 'T' dimension
1257    o add CF-style coordinate variables to MNC
1258      - just a first cut:  numbers are meaningless on the cubesphere and
1259        missing along the T axis but otherwise it works!
1260    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1261    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1262    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1263      this is based directly on what the model compute, so that the content of
1264      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1265    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1266    o clean up build options files for SunOS, in particular
1267      - remove -traditional from xmakedepend
1268      - change -xarch=v9 to -xarch=native for f77
1269      - restore use of make (not gmake)
1270      - add CC=gcc if using g77
1271    o changes per discussion of AM, JMC, & EH3 today:
1272      - move redundant "grid" variables out of "state" -- in preparation of
1273        creating proper CF-style coordinate variables and in recognition
1274        that any/all grid variables can be easily copied (eg. w/NCO) from
1275        the grid files into any of the other NetCDF files
1276      - *always* output grid variables with MDSIO (this will eventually be
1277        changed)
1278      - output MNC grid file if useMNC is true
1279    o every instance of _END_MASTER() has been found and replaced with
1280      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1281      preprocessors
1282    o re-arrange diagnostics pkg initialisation:
1283     - allow each package to extend the available diagnostics list
1284     - add some checking and fix small problems (multi-threaded, ...)
1285     - new S/R diagnostics_fill (replace fill_diagnostics):
1286       look through the short list of active diag. (instead of the long list)
1287       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1288    
1289    checkpoint57a_post
1290    o this set of changes restores TAMC compatibility
1291      tested for global_ocean.90x40x15 adjoint on trough
1292      (what a pain)
1293    
1294    checkpoint57a_pre
1295    o some modifs in tools/build_options for sunos
1296    o call ctrl_pack for ctrl at end for optimcycle=0
1297    
1298    checkpoint57
1299    o add horizontal bi-harmonic viscosity for vertical velocity
1300      - new parameter viscA4W (defaults to viscA4)
1301      - affects only non-hydrostatic code
1302      - to be done: no-slip lateral boundary conditions
1303    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1304    o implement Implicit Vertical advection for pTracers
1305    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1306      (implemented also for implicit vertical diffusion & advection)
1307    o OBCS: extend application of tracer open boundary conditions
1308      to a strip beyond the boundary of width Olx/Oly
1309    o add call monitor to TAF set of required calls (flow directives)
1310      and include in natl_box_adjoint
1311    o untangle a few ifdefs related to cost, ctrl, autodiff
1312      untangel a few ALLOW_ECCO_OPTIMIZATION
1313    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1314      (theta2, salt2 in ecco_cost_weights)
1315    
1316    checkpoint56c_post
1317    o OBCS as control variables
1318      - update ctrl_ad_diff.list, obcs_ad_diff.list
1319      - remove balance of obcs controls from default
1320      - fix index bug nobcs in ctrl_init
1321      - fix dummy fields filen in ctrl_pack
1322      - add dummy weights for obcs
1323    o lsopt: comment out fort.94 output
1324    o optim:
1325      - remove unnecessary header files
1326      - adjusted namelists
1327      - add xerbla.F to Makefile
1328    o exf:
1329      - multiple modifications of exf_check_range
1330      - unit change in exf_init_runoff from [m/year] to [m/s]
1331    o mdsio:
1332      - i/o-vector change debugLevel from debLevA to debLevB
1333    
1334    checkpoint56b_post
1335    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1336      is called from DO_THE_MODEL_IO
1337      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1338      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1339      - clean up PTRACERS_WRITE_TIMEAVE a little
1340    o add another verification experiment that tests both the cfc-pkg and
1341      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1342      reactive tendencies treated inline with regular timestepping
1343    o testreport previously did a lousy job of comparing small numbers, so
1344      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1345      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1346      testreport.
1347    o ptracers_monitor: bug fix for MPI
1348    
1349    checkpoint56a_post
1350    o GCHEM: finish reorganizating the package
1351      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1352        (introduces another 3D-array for each passive tracer, but only if
1353        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1354        gchemTendency is not needed because the timestep is done separately)
1355      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1356      - GCHEM is now---more or less cleanly---separate from PTRACERS
1357      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1358        so clear to me how that should be done in a general way.
1359    o CFC: improve formatting of output in CFC_ATMOS
1360    o PTRACERS:
1361      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1362        that ALL experiments with ptracers enable can be checked. This makes
1363        GCHEM_MONITOR obsolete.
1364      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1365        monitorFreq
1366      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1367    o add PTRACERS (PTR0[1-5]) to testreport output
1368    o exf_check_range:
1369      * default changed to .TRUE.
1370      * will check values for niter0 if debLevA, every timestep if debLevB
1371      * STOP in exf_check_range if 'out of range'
1372      * range chosen generous to allow for potential extema
1373      TBD: a version with stricter range
1374           permitted range would be runtime parameters
1375  o GMredi:  o GMredi:
1376    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1377    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1380  o GCHEM:
1380    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1381      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1382    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1383      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1384        this flag is now only visible within GCHEM-pkg routines.
1385      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1386        be replaced by a 3D array that is computed before thermodynamics; for
1387        this, the tracer ID iTracer had to be included into the parameter list
1388        of ptracers_forcing
1389      - set up forward_step to call gchem_forcing, that will replace
1390        gchem_forcing_int in ptracers_forcing
1391      - cleaning up
1392  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1393    
1394  checkpoint56  checkpoint56

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