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revision 1.437 by jmc, Thu Jan 27 14:11:44 2005 UTC revision 1.834 by jmc, Tue Jun 12 16:04:45 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 additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
8    o pkg/seaice:
9     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
10       requires a new routine: seaice_diagnostics_fill.F
11     - make sure that seaice does not move if not forced (pressure replacement
12       method, Hibler and Ip, 1995), changes results
13     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
14     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
15       It is turned off by default (=-1.), because it changes the results.
16     - make it possible to read AREA from a file, too.
17    
18    checkpoint59c
19    o add S/R and diagnostics for oceanic mixed-layer depth
20    o move GMRedi call after all vertical mixing schemes (including KPP)
21    o pkg/thsice:
22     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
23      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
24    o pkg/obcs:
25     - bug fix for balance code
26    o pkg/seaice:
27      - allow values of SEAICE_elasticParm > 1
28      - add new parameter SEAICE_evpTauRelax as an alternative
29        to SEAICE_elasticParm
30      - make lsr boundary conditions free slip (by default), changes result
31      - add code for no slip boundary conditions for lsr
32      - set minimum of zeta to zero (and not 4e8) (changes results)
33      - add a cap on AREA after advecting AREA if seaice_growth is not called
34    o change calculation of Visbeck K:
35      - no longer depend on tapering scheme; instead, compute slope (limited
36        by GM_maxSlope). this is equivalent to what was comuted before with
37        clipping or linear tappering.
38      - fix vertical averaging (wrong by 1/2 level)
39      - leave the old version (but will not be maintained) within
40        #ifdef OLD_VISBECK_CALC / #endif
41      - update output of exp. ideal_2D_oce
42    o change error catch in calc_r_star to improve vectorization
43    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
44      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
45    o adjoint:
46      Re-organized adjoint checkpointing according to Matt Mazloff
47      (but with modifs/completions/cleanups)
48      Storing is now bundled into large arrays to optimized I/O
49      (and second step in cleanup of the_main_loop)
50    
51    checkpoint59b
52    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
53      - export/import (between ocean & coupler) fields needed for ocean DIC.
54    o pkg/seaice:
55      - get rid of three more exchanges seaice_calc_viscosities (required
56        different loop boundaries in seaice_lsr and seaice_ocean_stress)
57      - bug fix in seaice_ocean_stress (update of lab_sea required)
58      - reduce loop boundaries to necessary minimum also in seaice_evp
59      - go back to the old way of computing deltaC/Z as the adjoint likes that
60        better
61    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
62      passive tracer to an Age Tracer) + update output.txt
63    o pkg/exf:
64      - implement A-grid / C-grid selection for wind-stress input files.
65      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
66      for now, in exf_bulk_largeyeager04.F only :
67      - change implementation for case where windspeed + 2. components wind-stress
68        are read-in. AND use rhoConstFresh to convert evap.
69    o pkg/seaice:
70      - use correct EXCH_UV for wind-forcing (on A-grid).
71      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
72        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
73    o pkg/exf:
74      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
75      EXF_INTERPOLATION:
76      - merge global_with_exf/code version of exf_interp_read.F
77        to the main code ;
78      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
79        reading the file ; Important: This options needs to be defined to recover
80        previous code.
81        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
82      - no longer loose real*8 precision along the way when using exf_iprec=64.
83    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
84      - change discretisation of evp-solver in order to avoid another exchange
85        (changes lab_sea) and clean up a little
86      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
87        help the adjoint (this also changes the results slightly)
88      - add a few "_d 0" where they had been missing in seaice_evp.F
89      - cleaning up: remove unused seaice_calc_rhs.F
90    o pkg/exf: some cleaning-up:
91      - change various "constants" into runtime parameters
92      - cleaned-up Large&Yeager04 routine which should eventually
93        replace exf_bulkformulae.F (changed names of S/R and CPP)
94        and merged various ALLOW_ATM_WIND options
95     only used with thsice pkg (in thsice_get_exf.F):
96      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
97        which are used when useStabilityFct_overIce=TRUE (= the default)
98      - change default values of ice & snow emissivity and scale downward LW
99        by ice & snow emissivity.
100    o pkg/thsice:
101     fix few little problems, in thsice_calc_thickn.F:
102      - growth vertically (and not laterally) if iceFrac == iceMaskMax
103      - melt only laterally if hIce < hThinIce (as the comments say)
104      and in thsice_extend.F:
105      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
106      - start to form ice as soon as the minimum ice-volume is reachable.
107     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
108      and cpl_aim+ocn
109    o pkg/kpp
110     - move computation of surface related input fields to KPP into a new
111       subroutine kpp_forcing_surf.F
112     - remove wrong (within bi,bj loops) EXCH calls.
113     - little cleaning (add argument myThid in last position, cvs header ...)
114     - for now, fix conservation problem by exchanging KPPviscAz (may not
115       be the best fix)
116    o pkg/seaice
117     - check for inconsistent evp parameter/cpp-flag combination
118     - remove leftover errIO flat for obsolete name list error handling
119    o OpenAD
120     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
121    
122    checkpoint59a
123    o pkg/seaice: some parameter clarifications and a little bit of clean up
124    o pkg/thsice: rename run-time parameters:
125       himin       -> hIceMin
126       himin0      -> hThinIce
127       hihig       -> hThickIce
128       i0          -> i0swFrac
129       transCoef   -> bMeltCoef
130       frac_energy -> fracMelting
131      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
132       with default values (for now) that do not change the results.
133      remove old version of thsice vars advection in pkg/seaice.
134    o in FFIELDS.h:
135      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
136      - make pLoad & sIceLoad always available (but still only used if
137         ATMOSPHERIC_LOADING is #define).
138    o pkg/kpp: replaced _KPP_RL with _RL
139    o bug fixes for vertical diffusivity computations when both KPP and
140        3D diffusivity arrays are used.
141    o pkg/seaice: fix bug in evp solver, while doing that
142      - change (improve?) discretization of stress computations for both
143        cgrid-lsr and evp solver
144      - add a new routine to compute strain rates
145      - the above changes lab_sea results
146      - add no slip conditions for evp solver (off by default), lsr-version
147        may follow
148      - fix exchange for shear at Z-points (does not change lab_sea)
149      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
150        (to force the user to pick a time step since there is not "safe" way
151        of choosing it)
152      - add principal stress diagnostics
153      - rearrange fields for evp a little to avoid having to call a: too many
154        exchanges and b: exchanges for stress trensor components which we do
155        not have.
156      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
157        of evp, complete rewrite for lsr case (latter is does not yet work
158        in all cases)
159    o pkg/kpp: add code to have mixing in shelf ice caverns
160      - add myThid to all kpp routines (long overdue)
161    
162    checkpoint59
163    o pkg/exf:
164      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
165        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
166      - move exf header files from lower_case.h to UPPER_CASE.h ;
167        add missing cvs Header & Name
168      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
169      - add namelist param. selectStressGridPosition, exf_monFreq
170      - retire many _CLIM routines, and remove data.exf_clim
171        + params moved to data.exf
172        + climsst, climsss now handled by exf_set_gen, i.e.
173          climss?period=0 refers to constant field,
174          climss?period=-12 to monthly forcing
175      - split up namelists in data.exf
176    o pkg/seaice:
177      - remove seaice_exch and seaice_exch_uv
178      - remove superfluous exchange of theta
179      - add myThid to seaice_budget_ocean/ice
180      - add new interface for atmospheric wind forcing (C-grid only)
181        + new routine
182        + two new field (taux, tauy for stress over ice)
183        + removed one global field (DAIRN) for C-grid case only
184    o pkg/thsise
185      - 2nd set of modifs for thsice adjoint in conjunction with exf
186    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
187    
188    checkpoint58y_post
189    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
190      vertical diffusivity, similar to that in MOM4; turned on using
191      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
192      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
193    o Added capability for 3D specification of background vertical diffusion
194      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
195      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
196      "data" file that contains the 3D vertical diffusivity coefficients.
197    o ice dynamics (pkg/seaice) with thsice thermodynamics:
198      - add code within pkg thsice to advect & diffuse sea-ice fields
199      similar to (and will replace) what has been added in  seaice_advdiff.F,
200      but: - conserving Mass, Heat & Salt.
201           - better when using non-linear advection scheme (not yet fully tested)
202           - can also be used in atmospheric set-up (for now, only the diffusion).
203    
204    checkpoint58x_post
205    o IO option for global-file compact format:
206      - add options when generating topology (utils/exch2/matlab-topology-generator)
207      - add I/O capability (pkg/mdsio).
208      - adapt utils/matlab/rdmds.m to read this format.
209      for now long-line format not yet supported by pkg/mdsio (& exch2).
210    o shelfice: add a few diagnostics
211    
212    checkpoint58w_post
213    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
214      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
215      (and replace horiVertRatio in NH code).
216      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
217                         and tutorial_plume_on_slope (sensitive to truncation)
218    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
219      directly to drive seaice model (C-grid only)
220    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
221     - reintroduce computation of wind from stress,
222     - compute tau (in exf_bulkformulae.F) from windstress averaged to
223       mass points to avoid tau = 0
224     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
225    o rdmnc.m: make it work with "global" files created with gluemnc
226    o rdmnc.m : some improvements in dealing with singleton dimension
227      (tested on all testreport mnc output files).
228    o genmake2: disable pkg/profiles if netcdf test fails.
229    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
230    o move call to cal_readparms up to make calendar parameters/variable available
231      to all packages
232    
233    checkpoint58v_post
234    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
235      useDynP_inEos_Zc tested.
236    o pkg/exf: changes to properly interpolate/mask/scale initial fields
237    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
238      and portions thereof.  See read_cs.txt for description and examples.
239    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
240      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
241      following the great-circle arc between those 2 points.
242    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
243      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
244    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
245     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
246     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
247     - still needs work (not working with some options ; efficiency to improve)
248       and serious testing.
249     - use this scheme for temperature & salinity in 2 advection test exp.:
250       advect_xy & advect_xz, respectively.
251    
252    checkpoint58u_post
253    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
254    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
255    o testreport: add option "-skipdir" to skip some test.
256    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
257      momentum calculation.
258    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
259    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
260      remove checkpoint.F and the_correction_step.F (no longer used);
261      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
262    o add option (linFSConserveTr) to correct for tracer source/sink due to
263      Linear Free surface
264    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
265    o pkg/thsice: fix reading mnc-pickups
266    
267    checkpoint58t_post
268    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
269    o pkg/mdsio:
270     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
271       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
272       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
273     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
274     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
275       either MDS_READ_FIELD or MDS_WRITE_FIELD )
276     - new S/R (to replace MDSWRITEMETA), which allows to write more
277       informations (variable names, time ...) to meta files.
278     - modify rdmds.m to give back the meta file content.
279    o pkg/diagnostics: change vertical interpolation to be safer, and more
280       flexible (define p-levels to interpolate to in data.diagnostics);
281      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
282       diagnostic pointer.
283    o pkg/seaice: more cleaning up of seaice_growth, added many comments
284    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
285    o fix multi-category seaice:
286     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
287       SEAICE_MULTICATEGORY
288     - fix short wave heat flux
289    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
290       and allow to use EVP solver. Change forward lab_sea: test both EVP
291       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
292    o Initial check-in of lab_sea adjoint
293      (very similar to natl_box_adjoint/code_seaice)
294      * used C-grid and EVP solver
295      * used KPP, GM/Redi
296      * uses inAdExact=.TRUE.
297      * gradient checks fail for both ADM and TLM
298        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
299        f.d. gradients actually seem more problematic than ADM, TLM gradients;
300        issue is related to forward mismatch between g77 an ifort
301    o pkg/seaice: overhaul of thermodynamics
302     - growth.F and groatb.F are replaced by new routine seaice_growth.F
303     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
304     - move a few global fields out of SEAICE.h into seaice_growth.F and
305       make them 2D (FICE/QNETO/ ...)
306     - remove FO (it is the same as QNETO)
307     - introduce a few local fields to avoid modifying external fields such
308       as atemp, etc.
309    
310    checkpoint58s_post
311    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
312      changed exf_set_gen.F so that
313        genperiod=0 means input file is one time-constant field and
314        genperiod=-12 means input file contains 12 monthly means
315    o CG2D: use pre-computed solver main-diagonal (stored in common block);
316      this affects truncation error ; generate new output file for exp. which
317      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
318        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
319        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
320        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
321        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
322        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
323    o start implementation of deep-atmosphere and anelastic formulation
324    o verification: remove 2nd copy of input files and use script "prepare_run"
325      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
326    o mom_common/vecinv/fluxform: fix a few initialisation isssues
327    o profiles: fix for multithreaded case
328    
329    o diagnostics: rename few diags:
330      s/'PRESSURE'/'RCENTER '/g
331      s/'TICE    '/'oceFreez'/g
332      s/'TAUX    '/'oceTAUX '/g
333      s/'TAUY    '/'oceTAUY '/g
334      s/'SWFLUX  '/'oceQsw  '/g
335      s/DIFx/DFxE/g
336      s/DIFy/DFyE/g
337      and add few ocean-forcing diagnostics:
338      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
339    o modifications to pkg/seaice/growth.F and budget.F, which change results of
340      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
341      as actual snow thickness.  It now refers everywhere to effective snow
342      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
343    
344    checkpoint58r_post
345    o modifications to pkg/seaice/growth.F, which change results of
346      lab_sea experiment: fixes pertain to melting snow over open water, to
347      masking EVAP under sea ice, and to using the correct AREA variable for
348      computations of EVAP, PRECIP, HSNOW, and GHEFF
349    o add ability to read bathy, salt, and theta using MNC (off by def)
350    o add flooding algorithm and advection of HSNOW for pkg/seaice;
351      both are turned off by default and do no change any results
352    o seaice advection with pkg/thsice: a step toward the use of non-linear
353      advection scheme, but #ifdef or commented out for now (requires more EXCH).
354    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
355      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
356      in natl_box (affects results @ truncation level: update output.txt)
357    o multi-threading and IO:
358      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
359      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
360        (needed to work with SingleCpuIO): tested in all verif. exp.
361    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
362      affects the results (but none of the verification test uses this scheme).
363    o Adding some pkg/diagnostics capability to pkg/seaice
364      (will certainly be subject to changes)
365    o ctrl: adding new control variables:
366      lwflux, lwdown, evap, snowprecip, apressure, runoff
367    
368    checkpoint58q_post
369    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
370      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
371      high_res_cube configuration by 4% on Columbia.
372    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
373      add (in global_with_exf/code) a version of EXF_INTERP_READ without
374      dynamical allocation (seems to work in multi-threaded).
375    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
376      single CPU io) so that TAF does not have to see EESUPPORT.h
377    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
378    
379    checkpoint58p_post
380    o obcs: stop if obcs is used with useCDscheme = .true.
381    o shelfice:
382     - fix a sign error so that no slip at shelfice interface works
383     - remove stop for combination non-hydrostatic code and shelfice. That does
384       not mean, that the results are correct, but at least they are numerically
385       stable
386    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
387    o added adjoint exch routined for all exch*3d* routines
388      and updated flow directives
389    
390    checkpoint58o_post
391    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
392      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
393    o change controling S/R for writing pickup file (new S/R do_write_pickup)
394      and clean-up reading/writing of pickup files.
395    o fix local version of read/write pickup (NH part) in rotating_tank/code
396    o simplify EXCH interface:
397     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
398     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
399    o added the regrid package
400    o shelfice:
401     - add a simple boundary layer scheme to reduce noise
402     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
403    
404    checkpoint58n_post
405    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
406       local variable (not in common block).
407    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
408      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
409      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
410        to work with SingleCpuIO.
411    o add "_d 0" to real constant of pkg/cfc subroutines ;
412       update exp. cfc_exemple & tutorial_cfc_offline output files.
413    o multi-threading and IO:
414      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
415        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
416      - barrier before and after reading.
417      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
418      - avoid using MDS_WRITELOCAL for LAND pkg output.
419      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
420        common-block variables ; Allows multi-threading with master-thread IO.
421    o change default MAX_NO_THREADS from 32 to 4 ;
422      and stop cleanly when MAX_NO_THREADS is too small.
423    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
424    
425    checkpoint58m_post
426    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
427       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
428    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
429       keep global_ocean.90x40x15 (for AD testing) with former secondary test
430       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
431    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
432        add MITgcm_tutorials (= code + all the tutorials)
433    o ecco, option to compute cost for total ssh (mean+anom)
434    o consistent with addition of ptracer and ssh in pkg/profiles
435    o profiles: adding ptracer and ssh
436    o testreport: change multi-test output-file name
437      (from output.txt.{name} to output.{name}.txt)
438    o profiles: now ok for mutli-tiles case
439    o seaice: add 4 parameters for different advection schemes for area,
440      (effective) seaice thickness, enthalphy, and snow height. Their default
441      is the standard parameter SEAICEadvScheme
442    o calc_gw:
443     - add cosFacU in zonal viscous flux (harmonic.visc.).
444     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
445       of tutorial_plume_on_slope.
446    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
447    o calc_gw: true flux-form, account for horizontal grid spacing.
448      update rotating_tank results, but not plume_on_slope (affected at
449      truncation level, 11 digits).
450    
451    checkpoint58l_post
452    o calc_gw:
453     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
454     - remove side-drag for now (need to fix it); update plume_on_slope results.
455     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
456    o commit code to make SST/SSS weights spatially variable
457      (based on either variable in-situ or variable initial T/S weights)
458    o pkg/ecco:
459      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
460        now based on horizontally varying weights wthetaLev, wsaltLev
461      * cost_averagesflags now returns year indices in addition to day, month
462      * sflux balance is performed on annual basis
463        (sflxumm, sfluxmm2, bal_sfluxmm)
464      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
465        including separate counting and multipliers
466    o pkg/rbcs
467      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
468    
469    checkpoint58k_post
470    o testreport:
471     - always build in dir. "build" (if not there, mkdir build instead of building
472       & running in input)
473     - run in dir run (if it exists), in build otherwise.
474     - call prepare_run (if input/prepare_run exists)
475     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
476    o pkg/exf modifications to interpolation and rotation routines for more
477       reasonable treatment of North Pole singularity: for tracers North Pole
478       value is set to northernmost zonal-mean value, for zonal velocity it is
479       set to zero, and for meridional velocity it is set to northernmost value.
480    o pkg/exf/exf_check_range.F
481     - add tile index to diagnostics and move stop statement to the very
482       end of the routine.
483    o pkg/diagnostics: (diagnostics_main_init.F)
484      define title of isomorphic variables according to the current config.
485    o pkg/thsice with pkg/seaice dynamics:
486    - fix domain of computation (interior only, required for exf) and do exchanges
487    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
488    o towards a standard way of dealing with multi-threading in MONITOR
489      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
490    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
491       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
492    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
493    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
494    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
495       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
496    o tracer advection:
497     - clean-up and simplify calc_common_factors.F
498     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
499       advection subroutine (but still not used within DST advection S/R)
500    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
501    
502    checkpoint58j_post
503    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
504      from file (collects calls previously in FORWARD_STEP)
505    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
506    o adjoint store dir. adjusted accordingly
507    o genmake2
508      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
509    
510    checkpoint58i_post
511    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
512      on wind stress (SEAICEstressFactor defaults to 1.)
513    o Total number of Timers is finite (<=40): comment out 2 non-essential one
514      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
515    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
516      on CS-grid: no longer loosing mass.
517    o exf & curvilinear-grid: no longer modify longitude xC & xG.
518    o pkg/ggl90: fix sloppy output and fix a bug
519    o pkg/seaice: added SEAICEuseEVPpickup parameter
520      - Set to false in order to start EVP solver with
521        non-EVP pickup files when using SEAICEuseEVP
522      - fix sign error in diffusion in seaice_calc_rhs
523    
524    checkpoint58h_post
525    * Modifications for bottom topography control
526      o replace hFacC by _hFacC at various places
527      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
528      o add non-self-adjoint cg2d_nsa
529      o update autodiff support routines
530      o re-initialise hfac after ctrl_depth_ini
531      o works for 5x5 box, doesnt work for global_ocean.90x40x15
532    * Adding verification for 5x5 box (4-layer) bottom topography control
533    
534    checkpoint58g_post
535    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
536       used for mean seasonal cycle, mean diurnal cycle); add an example
537       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
538    o pkg/ggl90:
539      - add parameter (minimum surface kinetic energy)
540      - fix bug (avoiding division by zero)
541    o couple pkg/thsice to pkg/seaice:
542      - modify advection in seaice to accomodate new scalar fields to be advected
543      - only muliDimAdection scheme work with seaice/thsice
544      - mapping of thsice-variables to seaice-variables, back and forth
545      - does not break the verification experiments, but does not give the
546        desired results either
547    o pkg/seaice
548      - make (default) second order advection a bit less confusing?
549    
550    checkpoint58f_post
551    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
552      to pkg/seaice):
553      - new routines thsice_map_exf and thsice_get_exf provide the interface
554      - add an additional formal parameter to thsice_solve4temp
555    o pkg/exf:
556      - add new fields wspeed, snowprecip (to be able to couple to thsice)
557      - correct Stefan-Boltzmann constant
558      - new parameter for longwave surface emittance
559      - separate some stuff from exf_bulkformulae into new routines  
560        exf_radiation, exf_wind
561      - add new parameters and constants: longwave emissivity for ocean, ice
562        and snow, evaporation parameters over ice
563      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
564        either wind from stress or stress from wind
565    o pkg/thSIce:
566    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
567    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
568       and THSICE_CALC_THICKN
569    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
570    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
571      to make debugging easier.
572    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
573    o pkg/bulk_force:
574      - clean-up comments and parameters ;
575      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
576    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
577      generate new output for test-experiment: aim.5l_cs.thSI
578    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
579      testreport accordingly
580    
581    checkpoint58e_post
582    o SEAICE_CGRID adjoint done
583    o R_STAR adjoint implemented.
584      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
585      * need to sort out init. of h0facc, etc.
586    o Make pkg/profile fully independent of ecco,cost, etc. stuff
587      to be able to use it in pure forward.
588    
589    checkpoint58d_post
590    o upgrade simple test-experiment to tutorial example:
591     step.1: duplicate the experiment and (step.2) will remove the old copy.
592      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
593      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
594      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
595      tutorial_global_oce_biogeo    <- copy of dic_example
596      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
597      tutorial_plume_on_slope       <- copy of plume_on_slope
598      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
599      tutorial_global_oce_optim     <- empty for now (David ?)
600      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
601     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
602    o correct a sign problem in cost_scat.F
603    o obcs and ptracers: fix boundary conditions for advections schemes
604      with larger stencil
605    o thsice adjoint: start
606    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
607      completeness
608    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
609      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
610    o ptracers adjoint:
611      * avoid extensive recomputatations
612      * fix missing re-init. of gptr (missed by TAF)
613    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
614      me to turn off the excessive output to STDOUT that this package produces
615    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
616      and add those terms in Vector-Invariant formulation.
617    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
618      if the control period (xx_hfluxperiod etc) is 0
619    o in profiles pkg, clean routines and fix details
620    o in ecco pkg, reading ssh data:
621      fix problem in case the model does not start at iter0=0
622    o fix mnc-pickup/restart for ptracers
623    o new package prifiles:
624      code to compute profile-based cost by Gael Forget
625      (modifs in ecco, ctrl, autodiff)
626    o Benign bug fix in initialization (spotted by M. Mazloff) of
627      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
628    
629    checkpoint58c_post
630    o adjoint: finish NLFS adjoint and provide reference output in
631      verification/global_ocean.90x40x15/results_ad_nlfs
632    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
633      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
634      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
635      with SEAICE_CGRID defined.
636    o move calendarDumps from "data" to "data.cal" and clean-up the code
637      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
638    o add useEXF & useCAL flags (for now, set in hard-coded way)
639    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
640      (were missing in NH mode, and wrong in quasihydrostatic mode).
641      waiting for Chris updated version of calc_gw to add those CALLs.
642    o fix bug in quasihydrostatic S/R ;
643      add a test for this option: global_ocean.90x40x15.qshyd
644    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
645      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
646    o add on/off flag useOffLine for package OFFLINE
647    o seaice:
648      - modify advection so that it works also on the C-grid
649      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
650        problem in multi-tile runs with C-grid
651      - add flags for clipping ice velocities and/or masking solver forcing
652      - fix drag (ocean on ice) formulation and a bug that caused noise in the
653        C-grid solver
654      - added a few comments to seaice_diffusion.F
655      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
656        are now exclusive)
657      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
658        required re-ordering the code a little:
659       + make DAIRN global variable (defined in SEAICE)
660       + move computation of the viscosities eta and zeta into a new separate
661         routine (because I need to recompute them in seaice_ocean_stress.F)
662    
663    checkpoint58b_post
664    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
665      update output.txt of exp. aim.5l_cs.thSI
666    o various mnc cleanups and improvements:
667      + shrink lookup tables by factor of ~4
668      + better error reporting when running out of lookup space
669      + able to handle longer path/file names (up to 500 chars)
670    o adjoint:
671      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
672      - TBD: "hidden" mom_vecinv recomp. in dynamics
673    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
674     (allow to differentiate between forcing components using new integer flags:
675      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
676     and add new flag to put Dissipation tendency out of Adams-Bashforth.
677    o ecco
678      - enable trend removal from SSH anomaly obs.
679    o adjoint
680      - a fix for PmEpR when #undef EXACT_CONSERV
681      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
682      - try to fix "hidden" recomp. in forward_step for NLFS
683        (NLFS seems broken sometimes after I checked it in)
684    o seaice:
685     - add c-grid version of the dynamic solver:
686       + three new routines that are the c-grid substitute lsr, dynsolver
687         and ostres
688       + put a few fields that were local to dynsolver into global common
689         blocks, so that I can move the computation of stresses etc into
690         seaice_lsr (saves coding but may break the adjoint).
691     - replace more hardwired parameters by runtime parameters
692     - add ice masks that mask the rhs of the implicit solvers where there
693       is no ice (commented out in seaice_dynsolver, because i am not sure
694       if this works properly), eventually this should replace the clipping
695       of ice velocities in seaice_dynsolver to +/-40cm/s.
696    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
697      include it only where its needed
698    o move balancing of fluxes before the call of external_forcing_surf
699    o seaice:
700      - correct units of turning angles (now they are really in degrees)
701      - move computation of GWATX/Y out of main routine into dynsolver
702      - initialize GWATX/Y in seaice_init
703    o Apply mask on Fresh-Water flux (needed for SSH forcing).
704      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
705    o seaice: add runtime flags for turning angles (default to zero)
706    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
707      and trend from exf forcing and ctrl control adjustments
708    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
709      (since checkpoint57x_post)
710    o change the default rotation period to 86164.s = the Earth rotation
711    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
712      and based on a reference stratification. Tested within hs94.cs-32x32x5.
713    o seaice advection: add code for choosing between the default (2nd order
714      central differences) and multiDim advection schemes provided by
715      pkg/generic_advdiff
716    o seaice:
717      - removed all references to SEAICE_GRID.h fields from
718        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
719        (cubed-sphere configuration will change a little)
720      - grid computations in seaice_init are obsolete now.
721      - cleaned up code a little so that is easier to read (hopefully).
722      - added new (better?) discretizations of default advection and diffusion
723        (turn on with SEAICEuseFluxForm)
724      - replace 1 in 3d global fields by kSurface in growth.F
725      
726    checkpoint58a_post
727    o seaice:
728      - bug fix in advect.F
729    o shelfice:
730      - separate shelfice load anomaly from pload (breaks with time
731        dependent forcing), => introduce constant field shelficeLoadAnomaly.
732        Its default is 0., but it may be computed more cleverly from (unknown)
733        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
734        done offline. A good approximation of the pressure load anomaly is
735        necessary to avoid large initial adjustment processes underneath
736        deep-reaching shelfice.
737      - small fix in ISOMIP shelfice_thermodynamics
738      - add more sophisticated thermodynamics of Hellmer (1989), this is
739        now the default
740      - give a few constants more intuitive names
741    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
742      if bulk formulae are used in long integration (especially EmPmR). Turn
743      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
744      if balancePrintMean, the imbalance that is substracted is printed to
745      STDOUT.
746    o fix bug (typo) in obcs_apply_eta.F
747    o add a new package shelfice which enables us to model the circulation
748      underneath shelf-ice with draughts of hundreds of meters.
749     - works
750     - to do: + include improved thermodynamics
751              + check whether kSurfC (from model/inc/SURFACE.h) can be used
752                instead of new field kTopC
753              + can we use topoFile, Ro_surf and existing code in ini_depth.F
754                instead of new field R_shelfIce and new code in ini_depth.F
755                and ini_mask_etc.F?
756              + adjust vertical mixing schemes?
757    o seaice pkg:
758     - add a cpp-flag to include a simple formula for a salinity dependent
759       freezing point of sea water at the surface
760     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
761       meridional stresses are now different (and hopefully correct)
762    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
763       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
764       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
765    o pkg/diagnostics: add options and parameters for regional-statistics
766       diagnostics ; define regions by reading a region-mask from a file
767       (might add other options later)
768    o pkg/bulk_force:
769     - add option and parameters to use AIM surface-flux formulae.
770     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
771       others forcing fields (defined in PARM05, parameter file "data") are loaded
772       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
773     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
774     - use the right EXCH call for uwind,vwind (to work on CS-grid).
775     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
776       and parameters (note: calcWindStress replaces .NOT.readwindstress).
777     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
778    
779    checkpoint58
780    o add "--embed-source" option to genmake2 which, when the supporting
781      tools can be compiled (as determined by genmake2) will turn on the
782      embed_files package which then embeds the entire MITgcm source code
783      (*.[fFhc] + Makefile) used for the build within the executable
784      - requested by CNH but off by default
785      - adds a paltry <9MB to the mitgcmuv executable in most cases
786      - only writes the output when useEMBEDSRC in eedata is true
787    o clean up 3-dim. relaxation codes:
788      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
789      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
790      * Thanks to Tom Haine for testing!
791    
792    checkpoint57z_post
793    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
794      affects output (@ truncation level) of exp. plume_on_slope ; updated.
795    o fix the pickup behavior for obcs in combination with ptracers
796    o fix a bug in ptracers_external_fields_load
797    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
798      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
799    o transfered surface NH pressure to eta field (if exactConserv).
800    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
801         and update lab_sea output.txt file.
802    o completing 3-dim. relaxation code: additional term
803         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
804      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
805      * At compile time, in "EXF_OPTIONS.h" set
806          #define  ALLOW_CLIMTEMP_RELAXATION
807          #define  ALLOW_CLIMSALT_RELAXATION
808      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
809          tauThetaClimRelax3Dim = 15552000.0,
810          tauSaltClimRelax3Dim  = 15552000.0,
811      * 3 cases:
812          1) Use a constant-in-time 3-dim. field
813          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
814          3) Real-time relax. to time-evolving prescribed field
815    o Adding Laplacian-type smoothness constraint on
816      initial and boundary (forcing) controls (ic, bc)
817      * enable at compile-time via
818        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
819      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
820      * Absolute scale somewhat unclear so far
821      * no area weighting was included since no other cost term does so far
822    
823    checkpoint57y_post
824    First step for a NLFS adjoint
825    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
826    o new init. routines for calc_r_star, calc_surf_dr
827    o still need to deal with ini_masks_etc
828    o testreport seemed happy
829    checkpoint57y_pre
830    
831    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
832    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
833    o add new offset feature to offline pkg (plus minor cleanup)
834    o cfc fixes for final year of integration
835    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
836      be in GCHEM_OPTIONS).
837    
838    checkpoint57x_post
839    o fix testreport Pb in multiple test experiment.
840    o cleanup our namelist syntax in verification:
841      - make it more F95 standards compliant (some work still needed)
842      - allows the vast majority of our tests to work with gfortran
843    o Non-Hydrostatic:
844     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
845     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
846    o Allow to apply AB on T,S rather than on AB(gT,gS):
847     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
848     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
849       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
850     - need a "clever" read_pickup to restart from the other AB formulation
851    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
852    o remove some unused variables (reduces number of compiler warnings)
853    o adjoint
854      * Disable useVariableViscosity for adjoint for time being
855        (there are a number of extensive recomputations)
856      * Initialize certain variables needed for adjoint
857    
858    checkpoint57w_post
859    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
860                 fix the singleCpuIO RS version of MDSWRITEFIELD
861       and add a WARNING if using globalFiles=T with multi-processors.
862    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
863      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
864    o tracer advection scheme:
865      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
866       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
867       was not very convenient).
868      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
869       (further tests needed for the implicit DST & Flux-Limiter schemes).
870    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
871      and sRef for convenience, handy, when you want to initialize
872      ptracers in a large domain with a constant non-zero value. Also,
873      untangle ptracers_init.F a little.
874    
875    checkpoint57v_post
876    o change dome exp. to use variable viscosity in side-drag terms.
877    o remove all the files from the cfc_offline test since they are now
878      incorporated into tutorial_cfc_offline which has been producing
879      identical results for a few days of testing
880    o add new parameter: sideDragFactor to enable half-slip-side BC
881      and change side-drag S/R to use viscosity from mom_calc_visc
882      (can switch back by setting sideDragFactor=0.); affects results at
883      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
884       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
885    o vorticity & strain are now computed without masking, to account for
886      no-slip-side BC in variable viscosity calculation ; mask is applied
887      anyway later on, before computing advection/coriolis terms.
888    o modify exp4 to test new obcs support for reading from external files
889      and for passive tracers
890    o fix behavior of ptracers_monitor when monitor output is written to a
891      netcdf-file; still not independent of monitor.F (writes in the same
892      file).
893    o change default value of tRef (put a uniform, meaningful value for ocean
894      & atmos) and initialize sRef (was missing, as Martin mentioned).
895    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
896      to be proportional to enstrophy dissipation length.  Thus,
897       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
898      This is now consistent with Smagorinsky and with the manual.
899    
900    checkpoint57u_post
901    o OBCS and PTRACERS: add open boundary support for passive tracers
902      - either use homogenous (pseudo) v.Neumann conditions or prescribe
903        OB-values from file; this is not different from the way theta and salinity
904        are treated
905      - however, Orlanski-radiation conditions are not supported, and the model
906        will stop if you use pTracers and Orlanski at the same time.
907      - beefed up the rountine obcs_external_fields_load: now only those open
908        boundary values are overwritten with values from files for which there
909        are really files, otherwise the OB-fields remain untouched. This makes
910        it possible to use different OBs at different ends of the domain (as
911        with EXF)
912    o reduce number of exch calls in shap_filt (s2).
913    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
914      truncation level) 4/5 MLAdjust test results (11&12 digits match).
915    
916    checkpoint57t_post
917    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
918    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
919      same truncation, independent of the face number: affects affects several
920      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
921    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
922      note that biharmonic viscosity + no-slip was not tested in any experiment.
923    o fix bug in non-linear free-surf side-drag ; generate new output for
924      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
925    o make mnc honor the writeBinaryPrec flag for most kinds of output
926    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
927    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
928      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
929    o add brackets in multi-terms sum to get same truncation, independent of
930      the face number (manage to get exactly same value of gU,gV at the cs-edge)
931      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
932    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
933      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
934      a maximum grid-scale Reynolds number.  Also, changes all length calculations
935      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
936      Suggested values of viscosity parameters found in mom_calc_visc.
937      Many new viscosity diagnostics available.
938    
939    checkpoint57s_post
940    o Add clearing-house for viscosity calculations, mom_calc_visc and
941      correct numerous bugs in LeithD and Smagorinsky discretizations.  
942      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
943      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
944      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
945      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
946      The Strain-Tension form is now called with useStrainTensonVisc=.true.
947      ViscAhStrain and viscAhTension are now retired.
948    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
949    o In response to JMC's bug report, genmake2 now ignores any soft-links
950      that it finds in the *current* directory when searching for files.
951      Soft-links found in any other source directories will still work as
952      they did before.
953    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
954      a C routine to unlimit the stack size
955    o mnc-ify pkg/aim snapshot vars
956    o mnc-ify pkg/land as requested by Daniel
957    o various changes to mnc including:
958      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
959      - output can now be grouped so that all files within a group
960          change the ITER portion of their names in lock-step together
961      - can now read ("global") PER-FACE (in addition to PER-TILE) files
962          and works with both EXCH1 and EXCH2 (but needs more testing)
963      - writing works for all verification test cases w/ g77 on Linux
964    
965    checkpoint57r_post
966    o make MNC variable initialization happen earlier
967    o add diagnostics for (almost) each term of the momentum Eq.
968    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
969    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
970    o remove MINIMAL_TAVE_OUTPUT option ;
971      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
972    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
973      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
974    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
975    o add time-dependent SST, SSS control
976    o cost terms in ecco/ modularized (new cost_generic.F)
977    o cost_averages routines are modularized (new cost_averagesgeneric.F)
978    o new infrastructure for seaice model vs. obs misfits in seaice/
979      * driver from the_main_loop.F is seaice_cost_driver.F
980      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
981      * gradient check in Exp. 6a of natl_box_adjoint/
982    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
983      (see README file)
984    
985    checkpoint57q_post
986    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
987    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
988      - bug was reported by Jean-Michel and Ian Fenty
989    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
990      update exp. cpl_aim+ocn output.
991    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
992      Needed for high-res. runs with large global files
993      to be able to limit tapelev size
994    o Changed some tests for adjoint:
995      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
996      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
997      * global_ocean.90x40x15/ back to default 3-level checkpointing
998    o Modifications to enable scripted COMMON to MODULE conversion
999      * verification/OpenAD/code/ has necessary scripts and description;
1000      * converts, compiles and runs successfully;
1001    
1002    checkpoint57p_post
1003    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1004    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1005      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1006    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1007    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1008      (was already the case for dissipation with mom_vecinv,
1009       and also the case for grad.PhiHyd when staggered-timeStep)
1010      This will allow to put dissipation out-off the AB time-stepping.
1011     Unfortunately, affects truncation error. Update output of exp. that "fails"
1012      (cg2d matching number) and leave the others for later: front_relax(10),
1013      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1014      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1015    
1016    checkpoint57o_post
1017    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1018      (2) its ready to be documented during the 20050801 DocFest
1019    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1020      for ideal_2D_oce and lab_sea on linux_ia32_g77
1021    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1022      in global1x1_tot/code_seaice_adj to access indices 32, 33
1023      (worth another tag)
1024    
1025    checkpoint57n_post
1026    o adding precip control xx_precip 32
1027    o adding swflux control xx_swflux 33
1028    o Replacing 10 forcing penalty cost routines by 1 generic.
1029    o Implementing partitioning in time-mean and variable adjustment
1030      for atmos. state.
1031    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1032    o in natl_box_adjoint:
1033      * updated exp 1 to 10
1034        (but does not have time-mean vs. variable split results yet)
1035    o updated global1x1/*_seaice_adj/
1036      to incorporate latest changes
1037    o enable useSingleCpuIO for mdsio vector routines
1038      (applies in particular to tapelev I/O)
1039    o removed inefficient K-loop in all active_file*control*.F
1040    
1041    checkpoint57m_post
1042    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1043      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1044    o pkg/exch2: filling of face-corner halo regions is optional
1045      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1046    
1047    checkpoint57l_post
1048     tag before updating tutorials (pre-release-2)
1049    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1050       for output and interpolation of input fields onto model grid)
1051    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1052       Affects results of exp. rotating_tank ; update output.txt.
1053    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1054          and taking the square quantity and/or using a fraction-weight field.
1055    o fix aim_diagnostics_init.F mate numbers.
1056    o add mnc output capability to diagnostics/diagstat and update
1057      our cvsignore files for the ACSII output generated
1058    
1059    checkpoint57k_post
1060    o lab_sea now uses diagnostics package and provides a suite of
1061      new EXF diagnostics output.
1062    
1063    checkpoint57j_post
1064    o exf
1065      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1066        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1067        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1068      * extended diagnostics output
1069        - now includes all EXF variables
1070        - hs, hl moved to common block
1071        - separate S/R for diagnostics, called after ctrl vector is added
1072        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1073        - EXFqnet contains true Qnet (i.e. includes qsw)
1074      * updated verif. lab_sea, global_with_exf
1075      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1076        to ensure that diagnostics sees a true EXFqnet
1077    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1078    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1079      several times with different frequencies.
1080    o mnc-ify the thsice package as requested by Daniel Enderton
1081      - the monitor--MNC output needs work
1082      - many attributes need to be added (most are currently blank)
1083    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1084      - many attributes need to be added (most are currently blank)
1085    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1086    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1087    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1088      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1089         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1090    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1091     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1092    
1093    checkpoint57i_post
1094    o Diagnostics package was changed: diagnostic allocation is now deactivated
1095      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1096    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1097      add 1rst Order upwind vertical Shear.
1098    o add a quick fix for A/B checkpointing in OFFLINE mode
1099    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1100      end-run around the C/Fortran linking horror in eesup/src/timers.F
1101    o added pkg/runclock: allows user to terminate run based on wall clock
1102    o added non-hydrostatic scaling parameter: nh_am2
1103    o pkg/my82: futile attempt to make results compiler-independent by adding
1104      some "_d 0", etc. no effect.
1105    o for mnc output, fill the 'T' coordinate var with myTime and create a
1106      separate 'iter' variable for iteration count
1107    o pkg/diagnostics:
1108      add new capability: output of Global/Regional & per-level statistics ;
1109      tested against monitor output (including land & thSIce) on various exp.
1110    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1111    
1112    checkpoint57h_done
1113      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1114      data.diagnostics, data.gchem, data.ptracers) is done.
1115    
1116    o pkg/diagnostics: prepare for Global/Regional statistics.
1117      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1118    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1119      and rename it: DIFFERENT_MULTIPLE
1120    
1121    checkpoint57h_post
1122    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1123    o pkg/diagnostics: change output frequency, now in seconds (instead
1124      of Nb of iterations). This requires to change data.diagnostics.
1125    checkpoint57h_pre
1126    
1127    o in mnc, let the user create the output dir if both mnc_outdir_date
1128      and mnc_outdir_num are false
1129    o add fflags() to pkg/diagnostics which allows one to specify, on a
1130      per-file basis, the file precision [default behavior is unchanged]
1131    o added diagnostics to pkg/kpp, including computation of mixed layer
1132      depth based on a temperature/density criterion
1133    o updated verification/natl_box to test the new pkg/kpp diagnostics
1134    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1135    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1136    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1137      not mnc -- this mistake was found by JMC and is now corrected
1138    
1139    checkpoint57g_post
1140    o add Adams-Bashforth 3rd Order time stepping:
1141      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1142      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1143    checkpoint57g_pre
1144    
1145    o make lambda[Theta,Salt]ClimRelax spatially varying
1146      (default remains spatially uniform constant based on tau)
1147    o added new control variables
1148      * init. uVel, vVel, etanN
1149      * lambda[Theta,Salt]ClimRelax
1150    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1151      (suggested by G. Forget)
1152    
1153    checkpoint57f_post
1154    o add parameter "baseTime" = model base time = time at iteration zero
1155      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1156      account for baseTime shift
1157    o move Coriolis arrays from PARAMS.h to GRID.h
1158    checkpoint57f_pre
1159    
1160    o mnc-ifying the seaice package
1161    o introduced an alternative length scale calculation for use in the limiting
1162      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1163    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1164    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1165      as well as grad(vort3).  Made it compatible with both approximate form
1166      for the cubed sphere and full form of these gradients.  Added flag
1167      useFullLeith to select between approximate and full form.  
1168    o add "d0" in getcon.F to reduce differences between compilers/platforms
1169      update output.txt of exp. fizhi-gridalt-hs
1170    o change port_rand funtion to allow to set the seed.
1171    o fix obscure MNC bug involving conversion between reals and integers
1172      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1173        new version is now more standards-compliant
1174    o adjoint-related modifications
1175      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1176      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1177      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1178    
1179    checkpoint57e_post
1180    o Adding eddy stress controls a la Ferreira et al.
1181    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1182    
1183    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1184      update output.txt of exp. fizhi-gridalt-hs
1185    o add more "Z" dimensions and associated coordinate vars to MNC
1186    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1187    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1188      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1189      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1190      months and years.  Requires pkg/cal.
1191    o diagnostics: add pickup functionality
1192      - off by default for backwards compatibility
1193      - current version only uses MDSIO -- MNC will be added
1194    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1195    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1196    
1197    checkpoint57d_post
1198    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1199    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1200      output from the diagnostics package
1201    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1202    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1203      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1204    o add coordinate variables to the MNC output from the diagnostics package
1205    o change MNC-flags default value: true when useMNC=TRUE
1206    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1207      the ability (off by default) to read the grid information using MNC
1208    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1209    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1210    o do snap-shot diagnostics at the middle of the time-interval (instead of
1211      at the end).
1212    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1213      new test for AIM with thSIce + slab-ocean
1214    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1215    o move state variable diagnostics to the beginning of the time step ;
1216      (note: still needs some work specially for snap-shot diagnostics)
1217      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1218    
1219    checkpoint57c_post
1220    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1221    o generate new output.txt files on faulks with g77 & the new -ieee option
1222  checkpoint57c_pre  checkpoint57c_pre
1223    
1224  o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);  o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);

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