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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.870 by gforget, Fri Sep 7 22:42:32 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 pkg/ecco: allow user defined cost function contributions
8    o testreport:
9      Allow to choose (per experiment) the list of tested output variables
10       and the main variable (used to issue a pass/FAIL ) ;
11      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
12      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
13      Also modify printing of summary:
14       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
15       b) echo the list of tested variables in the individual summary.txt of
16          each experiment.
17    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
18      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
19      (but still depend on the tile decompostion of the domain).
20    o pkg/seaice: change a discretization detail to make the B-grid code
21      "more symmetric". This change is likely to remove all "ridges/leads" that
22      where quasi-aligned with the grid in B-grid solutions. It may also be
23      the solution to the stress coupling issues with the B-grid.
24    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
25      remove .cvsignore from input dir. (since testreport no longer run here).
26    o pkg/thsice:
27     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
28     - fix reshaping of sea-ice just after advection:
29       melt all the ice only if ice-volume is too small.
30     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
31       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
32     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
33    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
34      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
35    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
36      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
37      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
38      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
39      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
40      -> update output.txt
41    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
42     this affects truncation error: -> update output.txt of exp:
43      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
44      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
45    
46    checkpoint59f
47    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
48    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
49      a bounded range (in forward mode)
50    o pkg/ecco, ctrl, autodiff and mom_common:
51     internal parameter controls, completements of implementations
52    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
53    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
54      (not seem any difference in testing results).
55    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
56       at face corners.
57    o pkg/generic_advdiff:
58     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
59      loop range indices for computing vertical advection tendency
60      and do the calculation in the interior only (no overlap) ;
61      for now, only implemented for SOM advection (to save CPU time).
62     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
63    o exch2 adjoint
64      First set of changes:
65      - add exch2 hand-written adjoint templates
66      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
67        This will require cleanup in pkg/autodiff/*.F
68        (changed routines currently kept separate in verif. code/)
69      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
70        that used to hide exch2 or cubed-sphere specific code
71        (commented via 'cph-exch2')
72    o pkg/seaice
73      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
74    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
75       output of global_ocean.cs32x15.thsice .
76    
77    checkpoint59e
78    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
79      for B-grid vector (not yet tested) and C-grid vector (<- only used
80      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
81    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
82      (#ifdef ALLOW_SALT_PLUME)
83    o gather_2d/scatter_2d: removed halo regions
84    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
85      scheme and the corresponding test case (under front_relax dir). For now,
86      only available with Skew-flux form and not yet tested in realistic set-up.
87      adjoint: store directives updated, but gradient checks deteriorated,
88      so maybe GM/Redi adjoint is now broken.
89    o seaice adjoint
90      * add AREA, HEFF, HSNOW as control variable
91        (should not change lab_sea results)
92      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
93    o pkg/seaice:
94      * added computation of saltFlux in seaice_growth;
95        For time being, sea ice salinity is assumed constant
96        contribution of snow flooding to freshening of sea ice is neglected.
97        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
98        defaults to 0.0 in order to maintain backward compatibility.
99        Typical values for SEAICE_salinity are 4 to 10 g/kg.
100      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
101      * added SEAICE_availHeatFrac, which specifies fraction of surface level
102        heat content used to melt or grow ice
103      * commented out cap of HICE: it helps keep ice thinner
104      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
105      * applied OBCS T/S mask to HEFFM sea ice mask
106    
107    checkpoint59d
108    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
109     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
110     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
111    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
112     and change default value of parameter "GM_Small_Number";
113     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
114       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
115       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
116    o pkg/ecco: cost function when applying pkg/smooth to controls
117    o pkg/ctrl: add forcingPrecond run time parameter
118    o pkg/seaice:
119     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
120     - fix bug in metric terms of u-equation in LSR solver (implicit part),
121       changes verification/lab_sea
122     - rearrange implicit part of u-equation in LSR solver to make it easier to
123       read, understand, and debug. This causes changes at the truncation level.
124     - fix (serious) bug in the boundary conditions (sign error in the implicit
125       part) of the LSR solver. Changes all LSR results.
126     - fixed problem with HSNOW initialization to avoid thick snow when AREA
127       is initilized with small values - does not change lab_sea results.
128     - added HsnowFile initialization capability
129    o pkg/smooth: addition to model/src and pkg/ctrl so allow
130     initialization of pkg/smooth and application to control vector
131    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
132    o dependencies: pkg/profiles requires pkg/cal
133    o pkg/profiles:
134     - added option ALLOW_PROFILES_GENERICGRID
135         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
136         that interpolation information (grid points and coefficients) is provided
137         within the netcdf input files.
138         -> sample matlab scripts can be found in MITgcm_contrib/gael
139         that allow you to prepare netcdf input files.
140     - also modified: cleaner include statements, cleaner error print statements,
141       cleaner stops when error, and more tests of the netcdf input files consistency.
142    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
143    o pkg/seaice:
144     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
145       requires a new routine: seaice_diagnostics_fill.F
146     - make sure that seaice does not move if not forced (pressure replacement
147       method, Hibler and Ip, 1995), changes results
148     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
149     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
150       It is turned off by default (=-1.), because it changes the results.
151     - make it possible to read AREA from a file, too.
152    
153    checkpoint59c
154    o add S/R and diagnostics for oceanic mixed-layer depth
155    o move GMRedi call after all vertical mixing schemes (including KPP)
156    o pkg/thsice:
157     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
158      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
159    o pkg/obcs:
160     - bug fix for balance code
161    o pkg/seaice:
162      - allow values of SEAICE_elasticParm > 1
163      - add new parameter SEAICE_evpTauRelax as an alternative
164        to SEAICE_elasticParm
165      - make lsr boundary conditions free slip (by default), changes result
166      - add code for no slip boundary conditions for lsr
167      - set minimum of zeta to zero (and not 4e8) (changes results)
168      - add a cap on AREA after advecting AREA if seaice_growth is not called
169    o change calculation of Visbeck K:
170      - no longer depend on tapering scheme; instead, compute slope (limited
171        by GM_maxSlope). this is equivalent to what was comuted before with
172        clipping or linear tappering.
173      - fix vertical averaging (wrong by 1/2 level)
174      - leave the old version (but will not be maintained) within
175        #ifdef OLD_VISBECK_CALC / #endif
176      - update output of exp. ideal_2D_oce
177    o change error catch in calc_r_star to improve vectorization
178    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
179      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
180    o adjoint:
181      Re-organized adjoint checkpointing according to Matt Mazloff
182      (but with modifs/completions/cleanups)
183      Storing is now bundled into large arrays to optimized I/O
184      (and second step in cleanup of the_main_loop)
185    
186    checkpoint59b
187    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
188      - export/import (between ocean & coupler) fields needed for ocean DIC.
189    o pkg/seaice:
190      - get rid of three more exchanges seaice_calc_viscosities (required
191        different loop boundaries in seaice_lsr and seaice_ocean_stress)
192      - bug fix in seaice_ocean_stress (update of lab_sea required)
193      - reduce loop boundaries to necessary minimum also in seaice_evp
194      - go back to the old way of computing deltaC/Z as the adjoint likes that
195        better
196    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
197      passive tracer to an Age Tracer) + update output.txt
198    o pkg/exf:
199      - implement A-grid / C-grid selection for wind-stress input files.
200      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
201      for now, in exf_bulk_largeyeager04.F only :
202      - change implementation for case where windspeed + 2. components wind-stress
203        are read-in. AND use rhoConstFresh to convert evap.
204    o pkg/seaice:
205      - use correct EXCH_UV for wind-forcing (on A-grid).
206      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
207        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
208    o pkg/exf:
209      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
210      EXF_INTERPOLATION:
211      - merge global_with_exf/code version of exf_interp_read.F
212        to the main code ;
213      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
214        reading the file ; Important: This options needs to be defined to recover
215        previous code.
216        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
217      - no longer loose real*8 precision along the way when using exf_iprec=64.
218    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
219      - change discretisation of evp-solver in order to avoid another exchange
220        (changes lab_sea) and clean up a little
221      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
222        help the adjoint (this also changes the results slightly)
223      - add a few "_d 0" where they had been missing in seaice_evp.F
224      - cleaning up: remove unused seaice_calc_rhs.F
225    o pkg/exf: some cleaning-up:
226      - change various "constants" into runtime parameters
227      - cleaned-up Large&Yeager04 routine which should eventually
228        replace exf_bulkformulae.F (changed names of S/R and CPP)
229        and merged various ALLOW_ATM_WIND options
230     only used with thsice pkg (in thsice_get_exf.F):
231      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
232        which are used when useStabilityFct_overIce=TRUE (= the default)
233      - change default values of ice & snow emissivity and scale downward LW
234        by ice & snow emissivity.
235    o pkg/thsice:
236     fix few little problems, in thsice_calc_thickn.F:
237      - growth vertically (and not laterally) if iceFrac == iceMaskMax
238      - melt only laterally if hIce < hThinIce (as the comments say)
239      and in thsice_extend.F:
240      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
241      - start to form ice as soon as the minimum ice-volume is reachable.
242     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
243      and cpl_aim+ocn
244    o pkg/kpp
245     - move computation of surface related input fields to KPP into a new
246       subroutine kpp_forcing_surf.F
247     - remove wrong (within bi,bj loops) EXCH calls.
248     - little cleaning (add argument myThid in last position, cvs header ...)
249     - for now, fix conservation problem by exchanging KPPviscAz (may not
250       be the best fix)
251    o pkg/seaice
252     - check for inconsistent evp parameter/cpp-flag combination
253     - remove leftover errIO flat for obsolete name list error handling
254    o OpenAD
255     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
256    
257    checkpoint59a
258    o pkg/seaice: some parameter clarifications and a little bit of clean up
259    o pkg/thsice: rename run-time parameters:
260       himin       -> hIceMin
261       himin0      -> hThinIce
262       hihig       -> hThickIce
263       i0          -> i0swFrac
264       transCoef   -> bMeltCoef
265       frac_energy -> fracMelting
266      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
267       with default values (for now) that do not change the results.
268      remove old version of thsice vars advection in pkg/seaice.
269    o in FFIELDS.h:
270      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
271      - make pLoad & sIceLoad always available (but still only used if
272         ATMOSPHERIC_LOADING is #define).
273    o pkg/kpp: replaced _KPP_RL with _RL
274    o bug fixes for vertical diffusivity computations when both KPP and
275        3D diffusivity arrays are used.
276    o pkg/seaice: fix bug in evp solver, while doing that
277      - change (improve?) discretization of stress computations for both
278        cgrid-lsr and evp solver
279      - add a new routine to compute strain rates
280      - the above changes lab_sea results
281      - add no slip conditions for evp solver (off by default), lsr-version
282        may follow
283      - fix exchange for shear at Z-points (does not change lab_sea)
284      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
285        (to force the user to pick a time step since there is not "safe" way
286        of choosing it)
287      - add principal stress diagnostics
288      - rearrange fields for evp a little to avoid having to call a: too many
289        exchanges and b: exchanges for stress trensor components which we do
290        not have.
291      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
292        of evp, complete rewrite for lsr case (latter is does not yet work
293        in all cases)
294    o pkg/kpp: add code to have mixing in shelf ice caverns
295      - add myThid to all kpp routines (long overdue)
296    
297    checkpoint59
298    o pkg/exf:
299      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
300        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
301      - move exf header files from lower_case.h to UPPER_CASE.h ;
302        add missing cvs Header & Name
303      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
304      - add namelist param. selectStressGridPosition, exf_monFreq
305      - retire many _CLIM routines, and remove data.exf_clim
306        + params moved to data.exf
307        + climsst, climsss now handled by exf_set_gen, i.e.
308          climss?period=0 refers to constant field,
309          climss?period=-12 to monthly forcing
310      - split up namelists in data.exf
311    o pkg/seaice:
312      - remove seaice_exch and seaice_exch_uv
313      - remove superfluous exchange of theta
314      - add myThid to seaice_budget_ocean/ice
315      - add new interface for atmospheric wind forcing (C-grid only)
316        + new routine
317        + two new field (taux, tauy for stress over ice)
318        + removed one global field (DAIRN) for C-grid case only
319    o pkg/thsise
320      - 2nd set of modifs for thsice adjoint in conjunction with exf
321    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
322    
323    checkpoint58y_post
324    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
325      vertical diffusivity, similar to that in MOM4; turned on using
326      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
327      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
328    o Added capability for 3D specification of background vertical diffusion
329      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
330      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
331      "data" file that contains the 3D vertical diffusivity coefficients.
332    o ice dynamics (pkg/seaice) with thsice thermodynamics:
333      - add code within pkg thsice to advect & diffuse sea-ice fields
334      similar to (and will replace) what has been added in  seaice_advdiff.F,
335      but: - conserving Mass, Heat & Salt.
336           - better when using non-linear advection scheme (not yet fully tested)
337           - can also be used in atmospheric set-up (for now, only the diffusion).
338    
339    checkpoint58x_post
340    o IO option for global-file compact format:
341      - add options when generating topology (utils/exch2/matlab-topology-generator)
342      - add I/O capability (pkg/mdsio).
343      - adapt utils/matlab/rdmds.m to read this format.
344      for now long-line format not yet supported by pkg/mdsio (& exch2).
345    o shelfice: add a few diagnostics
346    
347    checkpoint58w_post
348    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
349      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
350      (and replace horiVertRatio in NH code).
351      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
352                         and tutorial_plume_on_slope (sensitive to truncation)
353    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
354      directly to drive seaice model (C-grid only)
355    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
356     - reintroduce computation of wind from stress,
357     - compute tau (in exf_bulkformulae.F) from windstress averaged to
358       mass points to avoid tau = 0
359     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
360    o rdmnc.m: make it work with "global" files created with gluemnc
361    o rdmnc.m : some improvements in dealing with singleton dimension
362      (tested on all testreport mnc output files).
363    o genmake2: disable pkg/profiles if netcdf test fails.
364    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
365    o move call to cal_readparms up to make calendar parameters/variable available
366      to all packages
367    
368    checkpoint58v_post
369    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
370      useDynP_inEos_Zc tested.
371    o pkg/exf: changes to properly interpolate/mask/scale initial fields
372    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
373      and portions thereof.  See read_cs.txt for description and examples.
374    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
375      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
376      following the great-circle arc between those 2 points.
377    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
378      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
379    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
380     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
381     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
382     - still needs work (not working with some options ; efficiency to improve)
383       and serious testing.
384     - use this scheme for temperature & salinity in 2 advection test exp.:
385       advect_xy & advect_xz, respectively.
386    
387    checkpoint58u_post
388    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
389    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
390    o testreport: add option "-skipdir" to skip some test.
391    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
392      momentum calculation.
393    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
394    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
395      remove checkpoint.F and the_correction_step.F (no longer used);
396      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
397    o add option (linFSConserveTr) to correct for tracer source/sink due to
398      Linear Free surface
399    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
400    o pkg/thsice: fix reading mnc-pickups
401    
402    checkpoint58t_post
403    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
404    o pkg/mdsio:
405     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
406       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
407       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
408     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
409     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
410       either MDS_READ_FIELD or MDS_WRITE_FIELD )
411     - new S/R (to replace MDSWRITEMETA), which allows to write more
412       informations (variable names, time ...) to meta files.
413     - modify rdmds.m to give back the meta file content.
414    o pkg/diagnostics: change vertical interpolation to be safer, and more
415       flexible (define p-levels to interpolate to in data.diagnostics);
416      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
417       diagnostic pointer.
418    o pkg/seaice: more cleaning up of seaice_growth, added many comments
419    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
420    o fix multi-category seaice:
421     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
422       SEAICE_MULTICATEGORY
423     - fix short wave heat flux
424    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
425       and allow to use EVP solver. Change forward lab_sea: test both EVP
426       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
427    o Initial check-in of lab_sea adjoint
428      (very similar to natl_box_adjoint/code_seaice)
429      * used C-grid and EVP solver
430      * used KPP, GM/Redi
431      * uses inAdExact=.TRUE.
432      * gradient checks fail for both ADM and TLM
433        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
434        f.d. gradients actually seem more problematic than ADM, TLM gradients;
435        issue is related to forward mismatch between g77 an ifort
436    o pkg/seaice: overhaul of thermodynamics
437     - growth.F and groatb.F are replaced by new routine seaice_growth.F
438     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
439     - move a few global fields out of SEAICE.h into seaice_growth.F and
440       make them 2D (FICE/QNETO/ ...)
441     - remove FO (it is the same as QNETO)
442     - introduce a few local fields to avoid modifying external fields such
443       as atemp, etc.
444    
445    checkpoint58s_post
446    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
447      changed exf_set_gen.F so that
448        genperiod=0 means input file is one time-constant field and
449        genperiod=-12 means input file contains 12 monthly means
450    o CG2D: use pre-computed solver main-diagonal (stored in common block);
451      this affects truncation error ; generate new output file for exp. which
452      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
453        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
454        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
455        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
456        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
457        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
458    o start implementation of deep-atmosphere and anelastic formulation
459    o verification: remove 2nd copy of input files and use script "prepare_run"
460      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
461    o mom_common/vecinv/fluxform: fix a few initialisation isssues
462    o profiles: fix for multithreaded case
463    
464    o diagnostics: rename few diags:
465      s/'PRESSURE'/'RCENTER '/g
466      s/'TICE    '/'oceFreez'/g
467      s/'TAUX    '/'oceTAUX '/g
468      s/'TAUY    '/'oceTAUY '/g
469      s/'SWFLUX  '/'oceQsw  '/g
470      s/DIFx/DFxE/g
471      s/DIFy/DFyE/g
472      and add few ocean-forcing diagnostics:
473      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
474    o modifications to pkg/seaice/growth.F and budget.F, which change results of
475      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
476      as actual snow thickness.  It now refers everywhere to effective snow
477      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
478    
479    checkpoint58r_post
480    o modifications to pkg/seaice/growth.F, which change results of
481      lab_sea experiment: fixes pertain to melting snow over open water, to
482      masking EVAP under sea ice, and to using the correct AREA variable for
483      computations of EVAP, PRECIP, HSNOW, and GHEFF
484    o add ability to read bathy, salt, and theta using MNC (off by def)
485    o add flooding algorithm and advection of HSNOW for pkg/seaice;
486      both are turned off by default and do no change any results
487    o seaice advection with pkg/thsice: a step toward the use of non-linear
488      advection scheme, but #ifdef or commented out for now (requires more EXCH).
489    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
490      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
491      in natl_box (affects results @ truncation level: update output.txt)
492    o multi-threading and IO:
493      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
494      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
495        (needed to work with SingleCpuIO): tested in all verif. exp.
496    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
497      affects the results (but none of the verification test uses this scheme).
498    o Adding some pkg/diagnostics capability to pkg/seaice
499      (will certainly be subject to changes)
500    o ctrl: adding new control variables:
501      lwflux, lwdown, evap, snowprecip, apressure, runoff
502    
503    checkpoint58q_post
504    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
505      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
506      high_res_cube configuration by 4% on Columbia.
507    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
508      add (in global_with_exf/code) a version of EXF_INTERP_READ without
509      dynamical allocation (seems to work in multi-threaded).
510    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
511      single CPU io) so that TAF does not have to see EESUPPORT.h
512    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
513    
514    checkpoint58p_post
515    o obcs: stop if obcs is used with useCDscheme = .true.
516    o shelfice:
517     - fix a sign error so that no slip at shelfice interface works
518     - remove stop for combination non-hydrostatic code and shelfice. That does
519       not mean, that the results are correct, but at least they are numerically
520       stable
521    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
522    o added adjoint exch routined for all exch*3d* routines
523      and updated flow directives
524    
525    checkpoint58o_post
526    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
527      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
528    o change controling S/R for writing pickup file (new S/R do_write_pickup)
529      and clean-up reading/writing of pickup files.
530    o fix local version of read/write pickup (NH part) in rotating_tank/code
531    o simplify EXCH interface:
532     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
533     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
534    o added the regrid package
535    o shelfice:
536     - add a simple boundary layer scheme to reduce noise
537     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
538    
539    checkpoint58n_post
540    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
541       local variable (not in common block).
542    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
543      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
544      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
545        to work with SingleCpuIO.
546    o add "_d 0" to real constant of pkg/cfc subroutines ;
547       update exp. cfc_exemple & tutorial_cfc_offline output files.
548    o multi-threading and IO:
549      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
550        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
551      - barrier before and after reading.
552      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
553      - avoid using MDS_WRITELOCAL for LAND pkg output.
554      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
555        common-block variables ; Allows multi-threading with master-thread IO.
556    o change default MAX_NO_THREADS from 32 to 4 ;
557      and stop cleanly when MAX_NO_THREADS is too small.
558    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
559    
560    checkpoint58m_post
561    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
562       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
563    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
564       keep global_ocean.90x40x15 (for AD testing) with former secondary test
565       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
566    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
567        add MITgcm_tutorials (= code + all the tutorials)
568    o ecco, option to compute cost for total ssh (mean+anom)
569    o consistent with addition of ptracer and ssh in pkg/profiles
570    o profiles: adding ptracer and ssh
571    o testreport: change multi-test output-file name
572      (from output.txt.{name} to output.{name}.txt)
573    o profiles: now ok for mutli-tiles case
574    o seaice: add 4 parameters for different advection schemes for area,
575      (effective) seaice thickness, enthalphy, and snow height. Their default
576      is the standard parameter SEAICEadvScheme
577    o calc_gw:
578     - add cosFacU in zonal viscous flux (harmonic.visc.).
579     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
580       of tutorial_plume_on_slope.
581    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
582    o calc_gw: true flux-form, account for horizontal grid spacing.
583      update rotating_tank results, but not plume_on_slope (affected at
584      truncation level, 11 digits).
585    
586    checkpoint58l_post
587    o calc_gw:
588     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
589     - remove side-drag for now (need to fix it); update plume_on_slope results.
590     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
591    o commit code to make SST/SSS weights spatially variable
592      (based on either variable in-situ or variable initial T/S weights)
593    o pkg/ecco:
594      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
595        now based on horizontally varying weights wthetaLev, wsaltLev
596      * cost_averagesflags now returns year indices in addition to day, month
597      * sflux balance is performed on annual basis
598        (sflxumm, sfluxmm2, bal_sfluxmm)
599      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
600        including separate counting and multipliers
601    o pkg/rbcs
602      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
603    
604    checkpoint58k_post
605    o testreport:
606     - always build in dir. "build" (if not there, mkdir build instead of building
607       & running in input)
608     - run in dir run (if it exists), in build otherwise.
609     - call prepare_run (if input/prepare_run exists)
610     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
611    o pkg/exf modifications to interpolation and rotation routines for more
612       reasonable treatment of North Pole singularity: for tracers North Pole
613       value is set to northernmost zonal-mean value, for zonal velocity it is
614       set to zero, and for meridional velocity it is set to northernmost value.
615    o pkg/exf/exf_check_range.F
616     - add tile index to diagnostics and move stop statement to the very
617       end of the routine.
618    o pkg/diagnostics: (diagnostics_main_init.F)
619      define title of isomorphic variables according to the current config.
620    o pkg/thsice with pkg/seaice dynamics:
621    - fix domain of computation (interior only, required for exf) and do exchanges
622    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
623    o towards a standard way of dealing with multi-threading in MONITOR
624      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
625    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
626       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
627    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
628    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
629    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
630       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
631    o tracer advection:
632     - clean-up and simplify calc_common_factors.F
633     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
634       advection subroutine (but still not used within DST advection S/R)
635    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
636    
637    checkpoint58j_post
638    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
639      from file (collects calls previously in FORWARD_STEP)
640    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
641    o adjoint store dir. adjusted accordingly
642    o genmake2
643      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
644    
645    checkpoint58i_post
646    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
647      on wind stress (SEAICEstressFactor defaults to 1.)
648    o Total number of Timers is finite (<=40): comment out 2 non-essential one
649      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
650    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
651      on CS-grid: no longer loosing mass.
652    o exf & curvilinear-grid: no longer modify longitude xC & xG.
653    o pkg/ggl90: fix sloppy output and fix a bug
654    o pkg/seaice: added SEAICEuseEVPpickup parameter
655      - Set to false in order to start EVP solver with
656        non-EVP pickup files when using SEAICEuseEVP
657      - fix sign error in diffusion in seaice_calc_rhs
658    
659    checkpoint58h_post
660    * Modifications for bottom topography control
661      o replace hFacC by _hFacC at various places
662      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
663      o add non-self-adjoint cg2d_nsa
664      o update autodiff support routines
665      o re-initialise hfac after ctrl_depth_ini
666      o works for 5x5 box, doesnt work for global_ocean.90x40x15
667    * Adding verification for 5x5 box (4-layer) bottom topography control
668    
669    checkpoint58g_post
670    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
671       used for mean seasonal cycle, mean diurnal cycle); add an example
672       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
673    o pkg/ggl90:
674      - add parameter (minimum surface kinetic energy)
675      - fix bug (avoiding division by zero)
676    o couple pkg/thsice to pkg/seaice:
677      - modify advection in seaice to accomodate new scalar fields to be advected
678      - only muliDimAdection scheme work with seaice/thsice
679      - mapping of thsice-variables to seaice-variables, back and forth
680      - does not break the verification experiments, but does not give the
681        desired results either
682    o pkg/seaice
683      - make (default) second order advection a bit less confusing?
684    
685    checkpoint58f_post
686    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
687      to pkg/seaice):
688      - new routines thsice_map_exf and thsice_get_exf provide the interface
689      - add an additional formal parameter to thsice_solve4temp
690    o pkg/exf:
691      - add new fields wspeed, snowprecip (to be able to couple to thsice)
692      - correct Stefan-Boltzmann constant
693      - new parameter for longwave surface emittance
694      - separate some stuff from exf_bulkformulae into new routines  
695        exf_radiation, exf_wind
696      - add new parameters and constants: longwave emissivity for ocean, ice
697        and snow, evaporation parameters over ice
698      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
699        either wind from stress or stress from wind
700    o pkg/thSIce:
701    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
702    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
703       and THSICE_CALC_THICKN
704    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
705    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
706      to make debugging easier.
707    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
708    o pkg/bulk_force:
709      - clean-up comments and parameters ;
710      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
711    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
712      generate new output for test-experiment: aim.5l_cs.thSI
713    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
714      testreport accordingly
715    
716    checkpoint58e_post
717    o SEAICE_CGRID adjoint done
718    o R_STAR adjoint implemented.
719      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
720      * need to sort out init. of h0facc, etc.
721    o Make pkg/profile fully independent of ecco,cost, etc. stuff
722      to be able to use it in pure forward.
723    
724    checkpoint58d_post
725    o upgrade simple test-experiment to tutorial example:
726     step.1: duplicate the experiment and (step.2) will remove the old copy.
727      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
728      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
729      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
730      tutorial_global_oce_biogeo    <- copy of dic_example
731      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
732      tutorial_plume_on_slope       <- copy of plume_on_slope
733      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
734      tutorial_global_oce_optim     <- empty for now (David ?)
735      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
736     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
737    o correct a sign problem in cost_scat.F
738    o obcs and ptracers: fix boundary conditions for advections schemes
739      with larger stencil
740    o thsice adjoint: start
741    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
742      completeness
743    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
744      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
745    o ptracers adjoint:
746      * avoid extensive recomputatations
747      * fix missing re-init. of gptr (missed by TAF)
748    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
749      me to turn off the excessive output to STDOUT that this package produces
750    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
751      and add those terms in Vector-Invariant formulation.
752    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
753      if the control period (xx_hfluxperiod etc) is 0
754    o in profiles pkg, clean routines and fix details
755    o in ecco pkg, reading ssh data:
756      fix problem in case the model does not start at iter0=0
757    o fix mnc-pickup/restart for ptracers
758    o new package prifiles:
759      code to compute profile-based cost by Gael Forget
760      (modifs in ecco, ctrl, autodiff)
761    o Benign bug fix in initialization (spotted by M. Mazloff) of
762      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
763    
764    checkpoint58c_post
765    o adjoint: finish NLFS adjoint and provide reference output in
766      verification/global_ocean.90x40x15/results_ad_nlfs
767    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
768      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
769      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
770      with SEAICE_CGRID defined.
771    o move calendarDumps from "data" to "data.cal" and clean-up the code
772      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
773    o add useEXF & useCAL flags (for now, set in hard-coded way)
774    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
775      (were missing in NH mode, and wrong in quasihydrostatic mode).
776      waiting for Chris updated version of calc_gw to add those CALLs.
777    o fix bug in quasihydrostatic S/R ;
778      add a test for this option: global_ocean.90x40x15.qshyd
779    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
780      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
781    o add on/off flag useOffLine for package OFFLINE
782    o seaice:
783      - modify advection so that it works also on the C-grid
784      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
785        problem in multi-tile runs with C-grid
786      - add flags for clipping ice velocities and/or masking solver forcing
787      - fix drag (ocean on ice) formulation and a bug that caused noise in the
788        C-grid solver
789      - added a few comments to seaice_diffusion.F
790      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
791        are now exclusive)
792      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
793        required re-ordering the code a little:
794       + make DAIRN global variable (defined in SEAICE)
795       + move computation of the viscosities eta and zeta into a new separate
796         routine (because I need to recompute them in seaice_ocean_stress.F)
797    
798    checkpoint58b_post
799    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
800      update output.txt of exp. aim.5l_cs.thSI
801    o various mnc cleanups and improvements:
802      + shrink lookup tables by factor of ~4
803      + better error reporting when running out of lookup space
804      + able to handle longer path/file names (up to 500 chars)
805    o adjoint:
806      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
807      - TBD: "hidden" mom_vecinv recomp. in dynamics
808    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
809     (allow to differentiate between forcing components using new integer flags:
810      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
811     and add new flag to put Dissipation tendency out of Adams-Bashforth.
812    o ecco
813      - enable trend removal from SSH anomaly obs.
814    o adjoint
815      - a fix for PmEpR when #undef EXACT_CONSERV
816      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
817      - try to fix "hidden" recomp. in forward_step for NLFS
818        (NLFS seems broken sometimes after I checked it in)
819    o seaice:
820     - add c-grid version of the dynamic solver:
821       + three new routines that are the c-grid substitute lsr, dynsolver
822         and ostres
823       + put a few fields that were local to dynsolver into global common
824         blocks, so that I can move the computation of stresses etc into
825         seaice_lsr (saves coding but may break the adjoint).
826     - replace more hardwired parameters by runtime parameters
827     - add ice masks that mask the rhs of the implicit solvers where there
828       is no ice (commented out in seaice_dynsolver, because i am not sure
829       if this works properly), eventually this should replace the clipping
830       of ice velocities in seaice_dynsolver to +/-40cm/s.
831    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
832      include it only where its needed
833    o move balancing of fluxes before the call of external_forcing_surf
834    o seaice:
835      - correct units of turning angles (now they are really in degrees)
836      - move computation of GWATX/Y out of main routine into dynsolver
837      - initialize GWATX/Y in seaice_init
838    o Apply mask on Fresh-Water flux (needed for SSH forcing).
839      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
840    o seaice: add runtime flags for turning angles (default to zero)
841    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
842      and trend from exf forcing and ctrl control adjustments
843    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
844      (since checkpoint57x_post)
845    o change the default rotation period to 86164.s = the Earth rotation
846    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
847      and based on a reference stratification. Tested within hs94.cs-32x32x5.
848    o seaice advection: add code for choosing between the default (2nd order
849      central differences) and multiDim advection schemes provided by
850      pkg/generic_advdiff
851    o seaice:
852      - removed all references to SEAICE_GRID.h fields from
853        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
854        (cubed-sphere configuration will change a little)
855      - grid computations in seaice_init are obsolete now.
856      - cleaned up code a little so that is easier to read (hopefully).
857      - added new (better?) discretizations of default advection and diffusion
858        (turn on with SEAICEuseFluxForm)
859      - replace 1 in 3d global fields by kSurface in growth.F
860      
861    checkpoint58a_post
862    o seaice:
863      - bug fix in advect.F
864    o shelfice:
865      - separate shelfice load anomaly from pload (breaks with time
866        dependent forcing), => introduce constant field shelficeLoadAnomaly.
867        Its default is 0., but it may be computed more cleverly from (unknown)
868        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
869        done offline. A good approximation of the pressure load anomaly is
870        necessary to avoid large initial adjustment processes underneath
871        deep-reaching shelfice.
872      - small fix in ISOMIP shelfice_thermodynamics
873      - add more sophisticated thermodynamics of Hellmer (1989), this is
874        now the default
875      - give a few constants more intuitive names
876    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
877      if bulk formulae are used in long integration (especially EmPmR). Turn
878      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
879      if balancePrintMean, the imbalance that is substracted is printed to
880      STDOUT.
881    o fix bug (typo) in obcs_apply_eta.F
882    o add a new package shelfice which enables us to model the circulation
883      underneath shelf-ice with draughts of hundreds of meters.
884     - works
885     - to do: + include improved thermodynamics
886              + check whether kSurfC (from model/inc/SURFACE.h) can be used
887                instead of new field kTopC
888              + can we use topoFile, Ro_surf and existing code in ini_depth.F
889                instead of new field R_shelfIce and new code in ini_depth.F
890                and ini_mask_etc.F?
891              + adjust vertical mixing schemes?
892    o seaice pkg:
893     - add a cpp-flag to include a simple formula for a salinity dependent
894       freezing point of sea water at the surface
895     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
896       meridional stresses are now different (and hopefully correct)
897    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
898       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
899       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
900    o pkg/diagnostics: add options and parameters for regional-statistics
901       diagnostics ; define regions by reading a region-mask from a file
902       (might add other options later)
903    o pkg/bulk_force:
904     - add option and parameters to use AIM surface-flux formulae.
905     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
906       others forcing fields (defined in PARM05, parameter file "data") are loaded
907       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
908     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
909     - use the right EXCH call for uwind,vwind (to work on CS-grid).
910     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
911       and parameters (note: calcWindStress replaces .NOT.readwindstress).
912     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
913    
914    checkpoint58
915    o add "--embed-source" option to genmake2 which, when the supporting
916      tools can be compiled (as determined by genmake2) will turn on the
917      embed_files package which then embeds the entire MITgcm source code
918      (*.[fFhc] + Makefile) used for the build within the executable
919      - requested by CNH but off by default
920      - adds a paltry <9MB to the mitgcmuv executable in most cases
921      - only writes the output when useEMBEDSRC in eedata is true
922    o clean up 3-dim. relaxation codes:
923      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
924      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
925      * Thanks to Tom Haine for testing!
926    
927    checkpoint57z_post
928    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
929      affects output (@ truncation level) of exp. plume_on_slope ; updated.
930    o fix the pickup behavior for obcs in combination with ptracers
931    o fix a bug in ptracers_external_fields_load
932    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
933      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
934    o transfered surface NH pressure to eta field (if exactConserv).
935    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
936         and update lab_sea output.txt file.
937    o completing 3-dim. relaxation code: additional term
938         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
939      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
940      * At compile time, in "EXF_OPTIONS.h" set
941          #define  ALLOW_CLIMTEMP_RELAXATION
942          #define  ALLOW_CLIMSALT_RELAXATION
943      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
944          tauThetaClimRelax3Dim = 15552000.0,
945          tauSaltClimRelax3Dim  = 15552000.0,
946      * 3 cases:
947          1) Use a constant-in-time 3-dim. field
948          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
949          3) Real-time relax. to time-evolving prescribed field
950    o Adding Laplacian-type smoothness constraint on
951      initial and boundary (forcing) controls (ic, bc)
952      * enable at compile-time via
953        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
954      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
955      * Absolute scale somewhat unclear so far
956      * no area weighting was included since no other cost term does so far
957    
958    checkpoint57y_post
959    First step for a NLFS adjoint
960    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
961    o new init. routines for calc_r_star, calc_surf_dr
962    o still need to deal with ini_masks_etc
963    o testreport seemed happy
964    checkpoint57y_pre
965    
966    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
967    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
968    o add new offset feature to offline pkg (plus minor cleanup)
969    o cfc fixes for final year of integration
970    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
971      be in GCHEM_OPTIONS).
972    
973    checkpoint57x_post
974    o fix testreport Pb in multiple test experiment.
975    o cleanup our namelist syntax in verification:
976      - make it more F95 standards compliant (some work still needed)
977      - allows the vast majority of our tests to work with gfortran
978    o Non-Hydrostatic:
979     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
980     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
981    o Allow to apply AB on T,S rather than on AB(gT,gS):
982     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
983     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
984       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
985     - need a "clever" read_pickup to restart from the other AB formulation
986    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
987    o remove some unused variables (reduces number of compiler warnings)
988    o adjoint
989      * Disable useVariableViscosity for adjoint for time being
990        (there are a number of extensive recomputations)
991      * Initialize certain variables needed for adjoint
992    
993    checkpoint57w_post
994    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
995                 fix the singleCpuIO RS version of MDSWRITEFIELD
996       and add a WARNING if using globalFiles=T with multi-processors.
997    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
998      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
999    o tracer advection scheme:
1000      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1001       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1002       was not very convenient).
1003      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1004       (further tests needed for the implicit DST & Flux-Limiter schemes).
1005    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1006      and sRef for convenience, handy, when you want to initialize
1007      ptracers in a large domain with a constant non-zero value. Also,
1008      untangle ptracers_init.F a little.
1009    
1010    checkpoint57v_post
1011    o change dome exp. to use variable viscosity in side-drag terms.
1012    o remove all the files from the cfc_offline test since they are now
1013      incorporated into tutorial_cfc_offline which has been producing
1014      identical results for a few days of testing
1015    o add new parameter: sideDragFactor to enable half-slip-side BC
1016      and change side-drag S/R to use viscosity from mom_calc_visc
1017      (can switch back by setting sideDragFactor=0.); affects results at
1018      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1019       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1020    o vorticity & strain are now computed without masking, to account for
1021      no-slip-side BC in variable viscosity calculation ; mask is applied
1022      anyway later on, before computing advection/coriolis terms.
1023    o modify exp4 to test new obcs support for reading from external files
1024      and for passive tracers
1025    o fix behavior of ptracers_monitor when monitor output is written to a
1026      netcdf-file; still not independent of monitor.F (writes in the same
1027      file).
1028    o change default value of tRef (put a uniform, meaningful value for ocean
1029      & atmos) and initialize sRef (was missing, as Martin mentioned).
1030    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1031      to be proportional to enstrophy dissipation length.  Thus,
1032       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1033      This is now consistent with Smagorinsky and with the manual.
1034    
1035    checkpoint57u_post
1036    o OBCS and PTRACERS: add open boundary support for passive tracers
1037      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1038        OB-values from file; this is not different from the way theta and salinity
1039        are treated
1040      - however, Orlanski-radiation conditions are not supported, and the model
1041        will stop if you use pTracers and Orlanski at the same time.
1042      - beefed up the rountine obcs_external_fields_load: now only those open
1043        boundary values are overwritten with values from files for which there
1044        are really files, otherwise the OB-fields remain untouched. This makes
1045        it possible to use different OBs at different ends of the domain (as
1046        with EXF)
1047    o reduce number of exch calls in shap_filt (s2).
1048    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1049      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1050    
1051    checkpoint57t_post
1052    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1053    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1054      same truncation, independent of the face number: affects affects several
1055      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1056    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1057      note that biharmonic viscosity + no-slip was not tested in any experiment.
1058    o fix bug in non-linear free-surf side-drag ; generate new output for
1059      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1060    o make mnc honor the writeBinaryPrec flag for most kinds of output
1061    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1062    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1063      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1064    o add brackets in multi-terms sum to get same truncation, independent of
1065      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1066      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1067    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1068      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1069      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1070      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1071      Suggested values of viscosity parameters found in mom_calc_visc.
1072      Many new viscosity diagnostics available.
1073    
1074    checkpoint57s_post
1075    o Add clearing-house for viscosity calculations, mom_calc_visc and
1076      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1077      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1078      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1079      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1080      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1081      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1082      ViscAhStrain and viscAhTension are now retired.
1083    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1084    o In response to JMC's bug report, genmake2 now ignores any soft-links
1085      that it finds in the *current* directory when searching for files.
1086      Soft-links found in any other source directories will still work as
1087      they did before.
1088    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1089      a C routine to unlimit the stack size
1090    o mnc-ify pkg/aim snapshot vars
1091    o mnc-ify pkg/land as requested by Daniel
1092    o various changes to mnc including:
1093      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1094      - output can now be grouped so that all files within a group
1095          change the ITER portion of their names in lock-step together
1096      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1097          and works with both EXCH1 and EXCH2 (but needs more testing)
1098      - writing works for all verification test cases w/ g77 on Linux
1099    
1100    checkpoint57r_post
1101    o make MNC variable initialization happen earlier
1102    o add diagnostics for (almost) each term of the momentum Eq.
1103    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1104    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1105    o remove MINIMAL_TAVE_OUTPUT option ;
1106      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1107    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1108      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1109    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1110    o add time-dependent SST, SSS control
1111    o cost terms in ecco/ modularized (new cost_generic.F)
1112    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1113    o new infrastructure for seaice model vs. obs misfits in seaice/
1114      * driver from the_main_loop.F is seaice_cost_driver.F
1115      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1116      * gradient check in Exp. 6a of natl_box_adjoint/
1117    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1118      (see README file)
1119    
1120    checkpoint57q_post
1121    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1122    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1123      - bug was reported by Jean-Michel and Ian Fenty
1124    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1125      update exp. cpl_aim+ocn output.
1126    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1127      Needed for high-res. runs with large global files
1128      to be able to limit tapelev size
1129    o Changed some tests for adjoint:
1130      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1131      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1132      * global_ocean.90x40x15/ back to default 3-level checkpointing
1133    o Modifications to enable scripted COMMON to MODULE conversion
1134      * verification/OpenAD/code/ has necessary scripts and description;
1135      * converts, compiles and runs successfully;
1136    
1137    checkpoint57p_post
1138    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1139    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1140      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1141    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1142    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1143      (was already the case for dissipation with mom_vecinv,
1144       and also the case for grad.PhiHyd when staggered-timeStep)
1145      This will allow to put dissipation out-off the AB time-stepping.
1146     Unfortunately, affects truncation error. Update output of exp. that "fails"
1147      (cg2d matching number) and leave the others for later: front_relax(10),
1148      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1149      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1150    
1151    checkpoint57o_post
1152    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1153      (2) its ready to be documented during the 20050801 DocFest
1154    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1155      for ideal_2D_oce and lab_sea on linux_ia32_g77
1156    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1157      in global1x1_tot/code_seaice_adj to access indices 32, 33
1158      (worth another tag)
1159    
1160    checkpoint57n_post
1161    o adding precip control xx_precip 32
1162    o adding swflux control xx_swflux 33
1163    o Replacing 10 forcing penalty cost routines by 1 generic.
1164    o Implementing partitioning in time-mean and variable adjustment
1165      for atmos. state.
1166    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1167    o in natl_box_adjoint:
1168      * updated exp 1 to 10
1169        (but does not have time-mean vs. variable split results yet)
1170    o updated global1x1/*_seaice_adj/
1171      to incorporate latest changes
1172    o enable useSingleCpuIO for mdsio vector routines
1173      (applies in particular to tapelev I/O)
1174    o removed inefficient K-loop in all active_file*control*.F
1175    
1176    checkpoint57m_post
1177    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1178      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1179    o pkg/exch2: filling of face-corner halo regions is optional
1180      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1181    
1182    checkpoint57l_post
1183     tag before updating tutorials (pre-release-2)
1184    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1185       for output and interpolation of input fields onto model grid)
1186    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1187       Affects results of exp. rotating_tank ; update output.txt.
1188    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1189          and taking the square quantity and/or using a fraction-weight field.
1190    o fix aim_diagnostics_init.F mate numbers.
1191    o add mnc output capability to diagnostics/diagstat and update
1192      our cvsignore files for the ACSII output generated
1193    
1194    checkpoint57k_post
1195    o lab_sea now uses diagnostics package and provides a suite of
1196      new EXF diagnostics output.
1197    
1198    checkpoint57j_post
1199    o exf
1200      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1201        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1202        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1203      * extended diagnostics output
1204        - now includes all EXF variables
1205        - hs, hl moved to common block
1206        - separate S/R for diagnostics, called after ctrl vector is added
1207        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1208        - EXFqnet contains true Qnet (i.e. includes qsw)
1209      * updated verif. lab_sea, global_with_exf
1210      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1211        to ensure that diagnostics sees a true EXFqnet
1212    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1213    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1214      several times with different frequencies.
1215    o mnc-ify the thsice package as requested by Daniel Enderton
1216      - the monitor--MNC output needs work
1217      - many attributes need to be added (most are currently blank)
1218    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1219      - many attributes need to be added (most are currently blank)
1220    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1221    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1222    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1223      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1224         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1225    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1226     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1227    
1228    checkpoint57i_post
1229    o Diagnostics package was changed: diagnostic allocation is now deactivated
1230      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1231    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1232      add 1rst Order upwind vertical Shear.
1233    o add a quick fix for A/B checkpointing in OFFLINE mode
1234    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1235      end-run around the C/Fortran linking horror in eesup/src/timers.F
1236    o added pkg/runclock: allows user to terminate run based on wall clock
1237    o added non-hydrostatic scaling parameter: nh_am2
1238    o pkg/my82: futile attempt to make results compiler-independent by adding
1239      some "_d 0", etc. no effect.
1240    o for mnc output, fill the 'T' coordinate var with myTime and create a
1241      separate 'iter' variable for iteration count
1242    o pkg/diagnostics:
1243      add new capability: output of Global/Regional & per-level statistics ;
1244      tested against monitor output (including land & thSIce) on various exp.
1245    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1246    
1247    checkpoint57h_done
1248      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1249      data.diagnostics, data.gchem, data.ptracers) is done.
1250    
1251    o pkg/diagnostics: prepare for Global/Regional statistics.
1252      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1253    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1254      and rename it: DIFFERENT_MULTIPLE
1255    
1256    checkpoint57h_post
1257    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1258    o pkg/diagnostics: change output frequency, now in seconds (instead
1259      of Nb of iterations). This requires to change data.diagnostics.
1260    checkpoint57h_pre
1261    
1262    o in mnc, let the user create the output dir if both mnc_outdir_date
1263      and mnc_outdir_num are false
1264    o add fflags() to pkg/diagnostics which allows one to specify, on a
1265      per-file basis, the file precision [default behavior is unchanged]
1266    o added diagnostics to pkg/kpp, including computation of mixed layer
1267      depth based on a temperature/density criterion
1268    o updated verification/natl_box to test the new pkg/kpp diagnostics
1269    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1270    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1271    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1272      not mnc -- this mistake was found by JMC and is now corrected
1273    
1274    checkpoint57g_post
1275    o add Adams-Bashforth 3rd Order time stepping:
1276      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1277      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1278    checkpoint57g_pre
1279    
1280    o make lambda[Theta,Salt]ClimRelax spatially varying
1281      (default remains spatially uniform constant based on tau)
1282    o added new control variables
1283      * init. uVel, vVel, etanN
1284      * lambda[Theta,Salt]ClimRelax
1285    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1286      (suggested by G. Forget)
1287    
1288    checkpoint57f_post
1289    o add parameter "baseTime" = model base time = time at iteration zero
1290      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1291      account for baseTime shift
1292    o move Coriolis arrays from PARAMS.h to GRID.h
1293    checkpoint57f_pre
1294    
1295    o mnc-ifying the seaice package
1296    o introduced an alternative length scale calculation for use in the limiting
1297      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1298    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1299    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1300      as well as grad(vort3).  Made it compatible with both approximate form
1301      for the cubed sphere and full form of these gradients.  Added flag
1302      useFullLeith to select between approximate and full form.  
1303    o add "d0" in getcon.F to reduce differences between compilers/platforms
1304      update output.txt of exp. fizhi-gridalt-hs
1305    o change port_rand funtion to allow to set the seed.
1306    o fix obscure MNC bug involving conversion between reals and integers
1307      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1308        new version is now more standards-compliant
1309    o adjoint-related modifications
1310      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1311      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1312      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1313    
1314    checkpoint57e_post
1315    o Adding eddy stress controls a la Ferreira et al.
1316    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1317    
1318    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1319      update output.txt of exp. fizhi-gridalt-hs
1320    o add more "Z" dimensions and associated coordinate vars to MNC
1321    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1322    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1323      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1324      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1325      months and years.  Requires pkg/cal.
1326    o diagnostics: add pickup functionality
1327      - off by default for backwards compatibility
1328      - current version only uses MDSIO -- MNC will be added
1329    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1330    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1331    
1332    checkpoint57d_post
1333    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1334    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1335      output from the diagnostics package
1336    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1337    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1338      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1339    o add coordinate variables to the MNC output from the diagnostics package
1340    o change MNC-flags default value: true when useMNC=TRUE
1341    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1342      the ability (off by default) to read the grid information using MNC
1343    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1344    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1345    o do snap-shot diagnostics at the middle of the time-interval (instead of
1346      at the end).
1347    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1348      new test for AIM with thSIce + slab-ocean
1349    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1350    o move state variable diagnostics to the beginning of the time step ;
1351      (note: still needs some work specially for snap-shot diagnostics)
1352      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1353    
1354    checkpoint57c_post
1355    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1356    o generate new output.txt files on faulks with g77 & the new -ieee option
1357    checkpoint57c_pre
1358    
1359    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1360      update output.txt of exp. global_ocean.90x40x15
1361    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1362      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1363    o add saltFlux(+File) forcing capability with periodicExternalForcing
1364    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1365    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1366    o improvements for the MNC output from DIAGNOSTICS:
1367      - correct handling of the unlimitied dimension
1368      - all dims now have associated coordinate variables
1369      - variables located at U, V, and Corner ("Z") points are now written
1370        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1371        *all* data points are output
1372    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1373    o added pkg/seaice/seaice_monitor.F
1374    o mdsio_readfield.F can now read files visible only to master MPI process.
1375    o pkg/seaice: some test code for ice-modified ocean stress
1376    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1377      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1378      spurious negative numbers for precipitation and humidity.  Will cause
1379      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1380    o pkg/ctrl/
1381      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1382        May be enabled via doPackDiag
1383      *  introduce z-scaling of
1384         + gradient (doZscalePack) and
1385         + control (doZscaleUnpack)
1386    o pkg/mdsio/
1387      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1388      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1389    
1390    checkpoint57b_post
1391    o simplify options in diagnostics_fill arguments (remove weird combinations)
1392    o fix MNC coordinate variables so that they now contain per-face index
1393      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1394      general, EXCH2 grids are only aligned to a "local" coordinate system
1395    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1396    o Implement instantaneous output within pkg diagnostics:
1397      setting a negative frequency in data.diagnostics produces
1398     "snap-shot" output (as opposed to time-average if freq > 0)
1399    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1400      NOTE: change ptracer diagnostics name: use 2 characters to work with
1401            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1402    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1403      becomes the coordinate variable for the 'T' dimension
1404    o add CF-style coordinate variables to MNC
1405      - just a first cut:  numbers are meaningless on the cubesphere and
1406        missing along the T axis but otherwise it works!
1407    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1408    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1409    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1410      this is based directly on what the model compute, so that the content of
1411      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1412    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1413    o clean up build options files for SunOS, in particular
1414      - remove -traditional from xmakedepend
1415      - change -xarch=v9 to -xarch=native for f77
1416      - restore use of make (not gmake)
1417      - add CC=gcc if using g77
1418    o changes per discussion of AM, JMC, & EH3 today:
1419      - move redundant "grid" variables out of "state" -- in preparation of
1420        creating proper CF-style coordinate variables and in recognition
1421        that any/all grid variables can be easily copied (eg. w/NCO) from
1422        the grid files into any of the other NetCDF files
1423      - *always* output grid variables with MDSIO (this will eventually be
1424        changed)
1425      - output MNC grid file if useMNC is true
1426    o every instance of _END_MASTER() has been found and replaced with
1427      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1428      preprocessors
1429    o re-arrange diagnostics pkg initialisation:
1430     - allow each package to extend the available diagnostics list
1431     - add some checking and fix small problems (multi-threaded, ...)
1432     - new S/R diagnostics_fill (replace fill_diagnostics):
1433       look through the short list of active diag. (instead of the long list)
1434       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1435    
1436    checkpoint57a_post
1437    o this set of changes restores TAMC compatibility
1438      tested for global_ocean.90x40x15 adjoint on trough
1439      (what a pain)
1440    
1441    checkpoint57a_pre
1442    o some modifs in tools/build_options for sunos
1443    o call ctrl_pack for ctrl at end for optimcycle=0
1444    
1445    checkpoint57
1446    o add horizontal bi-harmonic viscosity for vertical velocity
1447      - new parameter viscA4W (defaults to viscA4)
1448      - affects only non-hydrostatic code
1449      - to be done: no-slip lateral boundary conditions
1450    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1451    o implement Implicit Vertical advection for pTracers
1452    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1453      (implemented also for implicit vertical diffusion & advection)
1454    o OBCS: extend application of tracer open boundary conditions
1455      to a strip beyond the boundary of width Olx/Oly
1456    o add call monitor to TAF set of required calls (flow directives)
1457      and include in natl_box_adjoint
1458    o untangle a few ifdefs related to cost, ctrl, autodiff
1459      untangel a few ALLOW_ECCO_OPTIMIZATION
1460    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1461      (theta2, salt2 in ecco_cost_weights)
1462    
1463    checkpoint56c_post
1464    o OBCS as control variables
1465      - update ctrl_ad_diff.list, obcs_ad_diff.list
1466      - remove balance of obcs controls from default
1467      - fix index bug nobcs in ctrl_init
1468      - fix dummy fields filen in ctrl_pack
1469      - add dummy weights for obcs
1470    o lsopt: comment out fort.94 output
1471    o optim:
1472      - remove unnecessary header files
1473      - adjusted namelists
1474      - add xerbla.F to Makefile
1475    o exf:
1476      - multiple modifications of exf_check_range
1477      - unit change in exf_init_runoff from [m/year] to [m/s]
1478    o mdsio:
1479      - i/o-vector change debugLevel from debLevA to debLevB
1480    
1481    checkpoint56b_post
1482    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1483      is called from DO_THE_MODEL_IO
1484      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1485      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1486      - clean up PTRACERS_WRITE_TIMEAVE a little
1487    o add another verification experiment that tests both the cfc-pkg and
1488      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1489      reactive tendencies treated inline with regular timestepping
1490    o testreport previously did a lousy job of comparing small numbers, so
1491      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1492      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1493      testreport.
1494    o ptracers_monitor: bug fix for MPI
1495    
1496    checkpoint56a_post
1497    o GCHEM: finish reorganizating the package
1498      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1499        (introduces another 3D-array for each passive tracer, but only if
1500        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1501        gchemTendency is not needed because the timestep is done separately)
1502      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1503      - GCHEM is now---more or less cleanly---separate from PTRACERS
1504      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1505        so clear to me how that should be done in a general way.
1506    o CFC: improve formatting of output in CFC_ATMOS
1507    o PTRACERS:
1508      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1509        that ALL experiments with ptracers enable can be checked. This makes
1510        GCHEM_MONITOR obsolete.
1511      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1512        monitorFreq
1513      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1514    o add PTRACERS (PTR0[1-5]) to testreport output
1515    o exf_check_range:
1516      * default changed to .TRUE.
1517      * will check values for niter0 if debLevA, every timestep if debLevB
1518      * STOP in exf_check_range if 'out of range'
1519      * range chosen generous to allow for potential extema
1520      TBD: a version with stricter range
1521           permitted range would be runtime parameters
1522  o GMredi:  o GMredi:
1523    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1524    - 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 1527  o GCHEM:
1527    - 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
1528      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1529    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1530      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1531        this flag is now only visible within GCHEM-pkg routines.
1532      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1533        be replaced by a 3D array that is computed before thermodynamics; for
1534        this, the tracer ID iTracer had to be included into the parameter list
1535        of ptracers_forcing
1536      - set up forward_step to call gchem_forcing, that will replace
1537        gchem_forcing_int in ptracers_forcing
1538      - cleaning up
1539  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
1540    
1541  checkpoint56  checkpoint56

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