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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.864 by jmc, Thu Aug 23 22:43:47 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 external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
8      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
9    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
10      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
11      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
12      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
13      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
14      -> update output.txt
15    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
16     this affects truncation error: -> update output.txt of exp:
17      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
18      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
19    
20    checkpoint59f
21    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
22    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
23      a bounded range (in forward mode)
24    o pkg/ecco, ctrl, autodiff and mom_common:
25     internal parameter controls, completements of implementations
26    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
27    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
28      (not seem any difference in testing results).
29    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
30       at face corners.
31    o pkg/generic_advdiff:
32     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
33      loop range indices for computing vertical advection tendency
34      and do the calculation in the interior only (no overlap) ;
35      for now, only implemented for SOM advection (to save CPU time).
36     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
37    o exch2 adjoint
38      First set of changes:
39      - add exch2 hand-written adjoint templates
40      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
41        This will require cleanup in pkg/autodiff/*.F
42        (changed routines currently kept separate in verif. code/)
43      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
44        that used to hide exch2 or cubed-sphere specific code
45        (commented via 'cph-exch2')
46    o pkg/seaice
47      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
48    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
49       output of global_ocean.cs32x15.thsice .
50    
51    checkpoint59e
52    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
53      for B-grid vector (not yet tested) and C-grid vector (<- only used
54      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
55    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
56      (#ifdef ALLOW_SALT_PLUME)
57    o gather_2d/scatter_2d: removed halo regions
58    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
59      scheme and the corresponding test case (under front_relax dir). For now,
60      only available with Skew-flux form and not yet tested in realistic set-up.
61      adjoint: store directives updated, but gradient checks deteriorated,
62      so maybe GM/Redi adjoint is now broken.
63    o seaice adjoint
64      * add AREA, HEFF, HSNOW as control variable
65        (should not change lab_sea results)
66      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
67    o pkg/seaice:
68      * added computation of saltFlux in seaice_growth;
69        For time being, sea ice salinity is assumed constant
70        contribution of snow flooding to freshening of sea ice is neglected.
71        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
72        defaults to 0.0 in order to maintain backward compatibility.
73        Typical values for SEAICE_salinity are 4 to 10 g/kg.
74      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
75      * added SEAICE_availHeatFrac, which specifies fraction of surface level
76        heat content used to melt or grow ice
77      * commented out cap of HICE: it helps keep ice thinner
78      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
79      * applied OBCS T/S mask to HEFFM sea ice mask
80    
81    checkpoint59d
82    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
83     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
84     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
85    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
86     and change default value of parameter "GM_Small_Number";
87     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
88       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
89       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
90    o pkg/ecco: cost function when applying pkg/smooth to controls
91    o pkg/ctrl: add forcingPrecond run time parameter
92    o pkg/seaice:
93     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
94     - fix bug in metric terms of u-equation in LSR solver (implicit part),
95       changes verification/lab_sea
96     - rearrange implicit part of u-equation in LSR solver to make it easier to
97       read, understand, and debug. This causes changes at the truncation level.
98     - fix (serious) bug in the boundary conditions (sign error in the implicit
99       part) of the LSR solver. Changes all LSR results.
100     - fixed problem with HSNOW initialization to avoid thick snow when AREA
101       is initilized with small values - does not change lab_sea results.
102     - added HsnowFile initialization capability
103    o pkg/smooth: addition to model/src and pkg/ctrl so allow
104     initialization of pkg/smooth and application to control vector
105    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
106    o dependencies: pkg/profiles requires pkg/cal
107    o pkg/profiles:
108     - added option ALLOW_PROFILES_GENERICGRID
109         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
110         that interpolation information (grid points and coefficients) is provided
111         within the netcdf input files.
112         -> sample matlab scripts can be found in MITgcm_contrib/gael
113         that allow you to prepare netcdf input files.
114     - also modified: cleaner include statements, cleaner error print statements,
115       cleaner stops when error, and more tests of the netcdf input files consistency.
116    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
117    o pkg/seaice:
118     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
119       requires a new routine: seaice_diagnostics_fill.F
120     - make sure that seaice does not move if not forced (pressure replacement
121       method, Hibler and Ip, 1995), changes results
122     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
123     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
124       It is turned off by default (=-1.), because it changes the results.
125     - make it possible to read AREA from a file, too.
126    
127    checkpoint59c
128    o add S/R and diagnostics for oceanic mixed-layer depth
129    o move GMRedi call after all vertical mixing schemes (including KPP)
130    o pkg/thsice:
131     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
132      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
133    o pkg/obcs:
134     - bug fix for balance code
135    o pkg/seaice:
136      - allow values of SEAICE_elasticParm > 1
137      - add new parameter SEAICE_evpTauRelax as an alternative
138        to SEAICE_elasticParm
139      - make lsr boundary conditions free slip (by default), changes result
140      - add code for no slip boundary conditions for lsr
141      - set minimum of zeta to zero (and not 4e8) (changes results)
142      - add a cap on AREA after advecting AREA if seaice_growth is not called
143    o change calculation of Visbeck K:
144      - no longer depend on tapering scheme; instead, compute slope (limited
145        by GM_maxSlope). this is equivalent to what was comuted before with
146        clipping or linear tappering.
147      - fix vertical averaging (wrong by 1/2 level)
148      - leave the old version (but will not be maintained) within
149        #ifdef OLD_VISBECK_CALC / #endif
150      - update output of exp. ideal_2D_oce
151    o change error catch in calc_r_star to improve vectorization
152    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
153      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
154    o adjoint:
155      Re-organized adjoint checkpointing according to Matt Mazloff
156      (but with modifs/completions/cleanups)
157      Storing is now bundled into large arrays to optimized I/O
158      (and second step in cleanup of the_main_loop)
159    
160    checkpoint59b
161    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
162      - export/import (between ocean & coupler) fields needed for ocean DIC.
163    o pkg/seaice:
164      - get rid of three more exchanges seaice_calc_viscosities (required
165        different loop boundaries in seaice_lsr and seaice_ocean_stress)
166      - bug fix in seaice_ocean_stress (update of lab_sea required)
167      - reduce loop boundaries to necessary minimum also in seaice_evp
168      - go back to the old way of computing deltaC/Z as the adjoint likes that
169        better
170    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
171      passive tracer to an Age Tracer) + update output.txt
172    o pkg/exf:
173      - implement A-grid / C-grid selection for wind-stress input files.
174      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
175      for now, in exf_bulk_largeyeager04.F only :
176      - change implementation for case where windspeed + 2. components wind-stress
177        are read-in. AND use rhoConstFresh to convert evap.
178    o pkg/seaice:
179      - use correct EXCH_UV for wind-forcing (on A-grid).
180      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
181        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
182    o pkg/exf:
183      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
184      EXF_INTERPOLATION:
185      - merge global_with_exf/code version of exf_interp_read.F
186        to the main code ;
187      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
188        reading the file ; Important: This options needs to be defined to recover
189        previous code.
190        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
191      - no longer loose real*8 precision along the way when using exf_iprec=64.
192    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
193      - change discretisation of evp-solver in order to avoid another exchange
194        (changes lab_sea) and clean up a little
195      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
196        help the adjoint (this also changes the results slightly)
197      - add a few "_d 0" where they had been missing in seaice_evp.F
198      - cleaning up: remove unused seaice_calc_rhs.F
199    o pkg/exf: some cleaning-up:
200      - change various "constants" into runtime parameters
201      - cleaned-up Large&Yeager04 routine which should eventually
202        replace exf_bulkformulae.F (changed names of S/R and CPP)
203        and merged various ALLOW_ATM_WIND options
204     only used with thsice pkg (in thsice_get_exf.F):
205      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
206        which are used when useStabilityFct_overIce=TRUE (= the default)
207      - change default values of ice & snow emissivity and scale downward LW
208        by ice & snow emissivity.
209    o pkg/thsice:
210     fix few little problems, in thsice_calc_thickn.F:
211      - growth vertically (and not laterally) if iceFrac == iceMaskMax
212      - melt only laterally if hIce < hThinIce (as the comments say)
213      and in thsice_extend.F:
214      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
215      - start to form ice as soon as the minimum ice-volume is reachable.
216     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
217      and cpl_aim+ocn
218    o pkg/kpp
219     - move computation of surface related input fields to KPP into a new
220       subroutine kpp_forcing_surf.F
221     - remove wrong (within bi,bj loops) EXCH calls.
222     - little cleaning (add argument myThid in last position, cvs header ...)
223     - for now, fix conservation problem by exchanging KPPviscAz (may not
224       be the best fix)
225    o pkg/seaice
226     - check for inconsistent evp parameter/cpp-flag combination
227     - remove leftover errIO flat for obsolete name list error handling
228    o OpenAD
229     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
230    
231    checkpoint59a
232    o pkg/seaice: some parameter clarifications and a little bit of clean up
233    o pkg/thsice: rename run-time parameters:
234       himin       -> hIceMin
235       himin0      -> hThinIce
236       hihig       -> hThickIce
237       i0          -> i0swFrac
238       transCoef   -> bMeltCoef
239       frac_energy -> fracMelting
240      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
241       with default values (for now) that do not change the results.
242      remove old version of thsice vars advection in pkg/seaice.
243    o in FFIELDS.h:
244      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
245      - make pLoad & sIceLoad always available (but still only used if
246         ATMOSPHERIC_LOADING is #define).
247    o pkg/kpp: replaced _KPP_RL with _RL
248    o bug fixes for vertical diffusivity computations when both KPP and
249        3D diffusivity arrays are used.
250    o pkg/seaice: fix bug in evp solver, while doing that
251      - change (improve?) discretization of stress computations for both
252        cgrid-lsr and evp solver
253      - add a new routine to compute strain rates
254      - the above changes lab_sea results
255      - add no slip conditions for evp solver (off by default), lsr-version
256        may follow
257      - fix exchange for shear at Z-points (does not change lab_sea)
258      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
259        (to force the user to pick a time step since there is not "safe" way
260        of choosing it)
261      - add principal stress diagnostics
262      - rearrange fields for evp a little to avoid having to call a: too many
263        exchanges and b: exchanges for stress trensor components which we do
264        not have.
265      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
266        of evp, complete rewrite for lsr case (latter is does not yet work
267        in all cases)
268    o pkg/kpp: add code to have mixing in shelf ice caverns
269      - add myThid to all kpp routines (long overdue)
270    
271    checkpoint59
272    o pkg/exf:
273      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
274        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
275      - move exf header files from lower_case.h to UPPER_CASE.h ;
276        add missing cvs Header & Name
277      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
278      - add namelist param. selectStressGridPosition, exf_monFreq
279      - retire many _CLIM routines, and remove data.exf_clim
280        + params moved to data.exf
281        + climsst, climsss now handled by exf_set_gen, i.e.
282          climss?period=0 refers to constant field,
283          climss?period=-12 to monthly forcing
284      - split up namelists in data.exf
285    o pkg/seaice:
286      - remove seaice_exch and seaice_exch_uv
287      - remove superfluous exchange of theta
288      - add myThid to seaice_budget_ocean/ice
289      - add new interface for atmospheric wind forcing (C-grid only)
290        + new routine
291        + two new field (taux, tauy for stress over ice)
292        + removed one global field (DAIRN) for C-grid case only
293    o pkg/thsise
294      - 2nd set of modifs for thsice adjoint in conjunction with exf
295    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
296    
297    checkpoint58y_post
298    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
299      vertical diffusivity, similar to that in MOM4; turned on using
300      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
301      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
302    o Added capability for 3D specification of background vertical diffusion
303      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
304      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
305      "data" file that contains the 3D vertical diffusivity coefficients.
306    o ice dynamics (pkg/seaice) with thsice thermodynamics:
307      - add code within pkg thsice to advect & diffuse sea-ice fields
308      similar to (and will replace) what has been added in  seaice_advdiff.F,
309      but: - conserving Mass, Heat & Salt.
310           - better when using non-linear advection scheme (not yet fully tested)
311           - can also be used in atmospheric set-up (for now, only the diffusion).
312    
313    checkpoint58x_post
314    o IO option for global-file compact format:
315      - add options when generating topology (utils/exch2/matlab-topology-generator)
316      - add I/O capability (pkg/mdsio).
317      - adapt utils/matlab/rdmds.m to read this format.
318      for now long-line format not yet supported by pkg/mdsio (& exch2).
319    o shelfice: add a few diagnostics
320    
321    checkpoint58w_post
322    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
323      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
324      (and replace horiVertRatio in NH code).
325      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
326                         and tutorial_plume_on_slope (sensitive to truncation)
327    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
328      directly to drive seaice model (C-grid only)
329    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
330     - reintroduce computation of wind from stress,
331     - compute tau (in exf_bulkformulae.F) from windstress averaged to
332       mass points to avoid tau = 0
333     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
334    o rdmnc.m: make it work with "global" files created with gluemnc
335    o rdmnc.m : some improvements in dealing with singleton dimension
336      (tested on all testreport mnc output files).
337    o genmake2: disable pkg/profiles if netcdf test fails.
338    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
339    o move call to cal_readparms up to make calendar parameters/variable available
340      to all packages
341    
342    checkpoint58v_post
343    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
344      useDynP_inEos_Zc tested.
345    o pkg/exf: changes to properly interpolate/mask/scale initial fields
346    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
347      and portions thereof.  See read_cs.txt for description and examples.
348    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
349      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
350      following the great-circle arc between those 2 points.
351    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
352      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
353    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
354     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
355     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
356     - still needs work (not working with some options ; efficiency to improve)
357       and serious testing.
358     - use this scheme for temperature & salinity in 2 advection test exp.:
359       advect_xy & advect_xz, respectively.
360    
361    checkpoint58u_post
362    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
363    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
364    o testreport: add option "-skipdir" to skip some test.
365    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
366      momentum calculation.
367    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
368    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
369      remove checkpoint.F and the_correction_step.F (no longer used);
370      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
371    o add option (linFSConserveTr) to correct for tracer source/sink due to
372      Linear Free surface
373    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
374    o pkg/thsice: fix reading mnc-pickups
375    
376    checkpoint58t_post
377    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
378    o pkg/mdsio:
379     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
380       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
381       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
382     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
383     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
384       either MDS_READ_FIELD or MDS_WRITE_FIELD )
385     - new S/R (to replace MDSWRITEMETA), which allows to write more
386       informations (variable names, time ...) to meta files.
387     - modify rdmds.m to give back the meta file content.
388    o pkg/diagnostics: change vertical interpolation to be safer, and more
389       flexible (define p-levels to interpolate to in data.diagnostics);
390      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
391       diagnostic pointer.
392    o pkg/seaice: more cleaning up of seaice_growth, added many comments
393    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
394    o fix multi-category seaice:
395     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
396       SEAICE_MULTICATEGORY
397     - fix short wave heat flux
398    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
399       and allow to use EVP solver. Change forward lab_sea: test both EVP
400       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
401    o Initial check-in of lab_sea adjoint
402      (very similar to natl_box_adjoint/code_seaice)
403      * used C-grid and EVP solver
404      * used KPP, GM/Redi
405      * uses inAdExact=.TRUE.
406      * gradient checks fail for both ADM and TLM
407        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
408        f.d. gradients actually seem more problematic than ADM, TLM gradients;
409        issue is related to forward mismatch between g77 an ifort
410    o pkg/seaice: overhaul of thermodynamics
411     - growth.F and groatb.F are replaced by new routine seaice_growth.F
412     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
413     - move a few global fields out of SEAICE.h into seaice_growth.F and
414       make them 2D (FICE/QNETO/ ...)
415     - remove FO (it is the same as QNETO)
416     - introduce a few local fields to avoid modifying external fields such
417       as atemp, etc.
418    
419    checkpoint58s_post
420    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
421      changed exf_set_gen.F so that
422        genperiod=0 means input file is one time-constant field and
423        genperiod=-12 means input file contains 12 monthly means
424    o CG2D: use pre-computed solver main-diagonal (stored in common block);
425      this affects truncation error ; generate new output file for exp. which
426      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
427        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
428        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
429        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
430        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
431        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
432    o start implementation of deep-atmosphere and anelastic formulation
433    o verification: remove 2nd copy of input files and use script "prepare_run"
434      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
435    o mom_common/vecinv/fluxform: fix a few initialisation isssues
436    o profiles: fix for multithreaded case
437    
438    o diagnostics: rename few diags:
439      s/'PRESSURE'/'RCENTER '/g
440      s/'TICE    '/'oceFreez'/g
441      s/'TAUX    '/'oceTAUX '/g
442      s/'TAUY    '/'oceTAUY '/g
443      s/'SWFLUX  '/'oceQsw  '/g
444      s/DIFx/DFxE/g
445      s/DIFy/DFyE/g
446      and add few ocean-forcing diagnostics:
447      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
448    o modifications to pkg/seaice/growth.F and budget.F, which change results of
449      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
450      as actual snow thickness.  It now refers everywhere to effective snow
451      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
452    
453    checkpoint58r_post
454    o modifications to pkg/seaice/growth.F, which change results of
455      lab_sea experiment: fixes pertain to melting snow over open water, to
456      masking EVAP under sea ice, and to using the correct AREA variable for
457      computations of EVAP, PRECIP, HSNOW, and GHEFF
458    o add ability to read bathy, salt, and theta using MNC (off by def)
459    o add flooding algorithm and advection of HSNOW for pkg/seaice;
460      both are turned off by default and do no change any results
461    o seaice advection with pkg/thsice: a step toward the use of non-linear
462      advection scheme, but #ifdef or commented out for now (requires more EXCH).
463    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
464      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
465      in natl_box (affects results @ truncation level: update output.txt)
466    o multi-threading and IO:
467      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
468      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
469        (needed to work with SingleCpuIO): tested in all verif. exp.
470    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
471      affects the results (but none of the verification test uses this scheme).
472    o Adding some pkg/diagnostics capability to pkg/seaice
473      (will certainly be subject to changes)
474    o ctrl: adding new control variables:
475      lwflux, lwdown, evap, snowprecip, apressure, runoff
476    
477    checkpoint58q_post
478    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
479      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
480      high_res_cube configuration by 4% on Columbia.
481    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
482      add (in global_with_exf/code) a version of EXF_INTERP_READ without
483      dynamical allocation (seems to work in multi-threaded).
484    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
485      single CPU io) so that TAF does not have to see EESUPPORT.h
486    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
487    
488    checkpoint58p_post
489    o obcs: stop if obcs is used with useCDscheme = .true.
490    o shelfice:
491     - fix a sign error so that no slip at shelfice interface works
492     - remove stop for combination non-hydrostatic code and shelfice. That does
493       not mean, that the results are correct, but at least they are numerically
494       stable
495    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
496    o added adjoint exch routined for all exch*3d* routines
497      and updated flow directives
498    
499    checkpoint58o_post
500    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
501      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
502    o change controling S/R for writing pickup file (new S/R do_write_pickup)
503      and clean-up reading/writing of pickup files.
504    o fix local version of read/write pickup (NH part) in rotating_tank/code
505    o simplify EXCH interface:
506     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
507     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
508    o added the regrid package
509    o shelfice:
510     - add a simple boundary layer scheme to reduce noise
511     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
512    
513    checkpoint58n_post
514    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
515       local variable (not in common block).
516    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
517      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
518      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
519        to work with SingleCpuIO.
520    o add "_d 0" to real constant of pkg/cfc subroutines ;
521       update exp. cfc_exemple & tutorial_cfc_offline output files.
522    o multi-threading and IO:
523      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
524        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
525      - barrier before and after reading.
526      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
527      - avoid using MDS_WRITELOCAL for LAND pkg output.
528      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
529        common-block variables ; Allows multi-threading with master-thread IO.
530    o change default MAX_NO_THREADS from 32 to 4 ;
531      and stop cleanly when MAX_NO_THREADS is too small.
532    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
533    
534    checkpoint58m_post
535    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
536       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
537    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
538       keep global_ocean.90x40x15 (for AD testing) with former secondary test
539       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
540    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
541        add MITgcm_tutorials (= code + all the tutorials)
542    o ecco, option to compute cost for total ssh (mean+anom)
543    o consistent with addition of ptracer and ssh in pkg/profiles
544    o profiles: adding ptracer and ssh
545    o testreport: change multi-test output-file name
546      (from output.txt.{name} to output.{name}.txt)
547    o profiles: now ok for mutli-tiles case
548    o seaice: add 4 parameters for different advection schemes for area,
549      (effective) seaice thickness, enthalphy, and snow height. Their default
550      is the standard parameter SEAICEadvScheme
551    o calc_gw:
552     - add cosFacU in zonal viscous flux (harmonic.visc.).
553     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
554       of tutorial_plume_on_slope.
555    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
556    o calc_gw: true flux-form, account for horizontal grid spacing.
557      update rotating_tank results, but not plume_on_slope (affected at
558      truncation level, 11 digits).
559    
560    checkpoint58l_post
561    o calc_gw:
562     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
563     - remove side-drag for now (need to fix it); update plume_on_slope results.
564     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
565    o commit code to make SST/SSS weights spatially variable
566      (based on either variable in-situ or variable initial T/S weights)
567    o pkg/ecco:
568      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
569        now based on horizontally varying weights wthetaLev, wsaltLev
570      * cost_averagesflags now returns year indices in addition to day, month
571      * sflux balance is performed on annual basis
572        (sflxumm, sfluxmm2, bal_sfluxmm)
573      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
574        including separate counting and multipliers
575    o pkg/rbcs
576      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
577    
578    checkpoint58k_post
579    o testreport:
580     - always build in dir. "build" (if not there, mkdir build instead of building
581       & running in input)
582     - run in dir run (if it exists), in build otherwise.
583     - call prepare_run (if input/prepare_run exists)
584     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
585    o pkg/exf modifications to interpolation and rotation routines for more
586       reasonable treatment of North Pole singularity: for tracers North Pole
587       value is set to northernmost zonal-mean value, for zonal velocity it is
588       set to zero, and for meridional velocity it is set to northernmost value.
589    o pkg/exf/exf_check_range.F
590     - add tile index to diagnostics and move stop statement to the very
591       end of the routine.
592    o pkg/diagnostics: (diagnostics_main_init.F)
593      define title of isomorphic variables according to the current config.
594    o pkg/thsice with pkg/seaice dynamics:
595    - fix domain of computation (interior only, required for exf) and do exchanges
596    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
597    o towards a standard way of dealing with multi-threading in MONITOR
598      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
599    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
600       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
601    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
602    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
603    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
604       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
605    o tracer advection:
606     - clean-up and simplify calc_common_factors.F
607     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
608       advection subroutine (but still not used within DST advection S/R)
609    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
610    
611    checkpoint58j_post
612    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
613      from file (collects calls previously in FORWARD_STEP)
614    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
615    o adjoint store dir. adjusted accordingly
616    o genmake2
617      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
618    
619    checkpoint58i_post
620    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
621      on wind stress (SEAICEstressFactor defaults to 1.)
622    o Total number of Timers is finite (<=40): comment out 2 non-essential one
623      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
624    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
625      on CS-grid: no longer loosing mass.
626    o exf & curvilinear-grid: no longer modify longitude xC & xG.
627    o pkg/ggl90: fix sloppy output and fix a bug
628    o pkg/seaice: added SEAICEuseEVPpickup parameter
629      - Set to false in order to start EVP solver with
630        non-EVP pickup files when using SEAICEuseEVP
631      - fix sign error in diffusion in seaice_calc_rhs
632    
633    checkpoint58h_post
634    * Modifications for bottom topography control
635      o replace hFacC by _hFacC at various places
636      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
637      o add non-self-adjoint cg2d_nsa
638      o update autodiff support routines
639      o re-initialise hfac after ctrl_depth_ini
640      o works for 5x5 box, doesnt work for global_ocean.90x40x15
641    * Adding verification for 5x5 box (4-layer) bottom topography control
642    
643    checkpoint58g_post
644    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
645       used for mean seasonal cycle, mean diurnal cycle); add an example
646       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
647    o pkg/ggl90:
648      - add parameter (minimum surface kinetic energy)
649      - fix bug (avoiding division by zero)
650    o couple pkg/thsice to pkg/seaice:
651      - modify advection in seaice to accomodate new scalar fields to be advected
652      - only muliDimAdection scheme work with seaice/thsice
653      - mapping of thsice-variables to seaice-variables, back and forth
654      - does not break the verification experiments, but does not give the
655        desired results either
656    o pkg/seaice
657      - make (default) second order advection a bit less confusing?
658    
659    checkpoint58f_post
660    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
661      to pkg/seaice):
662      - new routines thsice_map_exf and thsice_get_exf provide the interface
663      - add an additional formal parameter to thsice_solve4temp
664    o pkg/exf:
665      - add new fields wspeed, snowprecip (to be able to couple to thsice)
666      - correct Stefan-Boltzmann constant
667      - new parameter for longwave surface emittance
668      - separate some stuff from exf_bulkformulae into new routines  
669        exf_radiation, exf_wind
670      - add new parameters and constants: longwave emissivity for ocean, ice
671        and snow, evaporation parameters over ice
672      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
673        either wind from stress or stress from wind
674    o pkg/thSIce:
675    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
676    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
677       and THSICE_CALC_THICKN
678    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
679    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
680      to make debugging easier.
681    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
682    o pkg/bulk_force:
683      - clean-up comments and parameters ;
684      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
685    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
686      generate new output for test-experiment: aim.5l_cs.thSI
687    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
688      testreport accordingly
689    
690    checkpoint58e_post
691    o SEAICE_CGRID adjoint done
692    o R_STAR adjoint implemented.
693      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
694      * need to sort out init. of h0facc, etc.
695    o Make pkg/profile fully independent of ecco,cost, etc. stuff
696      to be able to use it in pure forward.
697    
698    checkpoint58d_post
699    o upgrade simple test-experiment to tutorial example:
700     step.1: duplicate the experiment and (step.2) will remove the old copy.
701      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
702      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
703      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
704      tutorial_global_oce_biogeo    <- copy of dic_example
705      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
706      tutorial_plume_on_slope       <- copy of plume_on_slope
707      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
708      tutorial_global_oce_optim     <- empty for now (David ?)
709      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
710     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
711    o correct a sign problem in cost_scat.F
712    o obcs and ptracers: fix boundary conditions for advections schemes
713      with larger stencil
714    o thsice adjoint: start
715    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
716      completeness
717    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
718      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
719    o ptracers adjoint:
720      * avoid extensive recomputatations
721      * fix missing re-init. of gptr (missed by TAF)
722    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
723      me to turn off the excessive output to STDOUT that this package produces
724    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
725      and add those terms in Vector-Invariant formulation.
726    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
727      if the control period (xx_hfluxperiod etc) is 0
728    o in profiles pkg, clean routines and fix details
729    o in ecco pkg, reading ssh data:
730      fix problem in case the model does not start at iter0=0
731    o fix mnc-pickup/restart for ptracers
732    o new package prifiles:
733      code to compute profile-based cost by Gael Forget
734      (modifs in ecco, ctrl, autodiff)
735    o Benign bug fix in initialization (spotted by M. Mazloff) of
736      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
737    
738    checkpoint58c_post
739    o adjoint: finish NLFS adjoint and provide reference output in
740      verification/global_ocean.90x40x15/results_ad_nlfs
741    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
742      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
743      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
744      with SEAICE_CGRID defined.
745    o move calendarDumps from "data" to "data.cal" and clean-up the code
746      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
747    o add useEXF & useCAL flags (for now, set in hard-coded way)
748    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
749      (were missing in NH mode, and wrong in quasihydrostatic mode).
750      waiting for Chris updated version of calc_gw to add those CALLs.
751    o fix bug in quasihydrostatic S/R ;
752      add a test for this option: global_ocean.90x40x15.qshyd
753    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
754      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
755    o add on/off flag useOffLine for package OFFLINE
756    o seaice:
757      - modify advection so that it works also on the C-grid
758      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
759        problem in multi-tile runs with C-grid
760      - add flags for clipping ice velocities and/or masking solver forcing
761      - fix drag (ocean on ice) formulation and a bug that caused noise in the
762        C-grid solver
763      - added a few comments to seaice_diffusion.F
764      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
765        are now exclusive)
766      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
767        required re-ordering the code a little:
768       + make DAIRN global variable (defined in SEAICE)
769       + move computation of the viscosities eta and zeta into a new separate
770         routine (because I need to recompute them in seaice_ocean_stress.F)
771    
772    checkpoint58b_post
773    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
774      update output.txt of exp. aim.5l_cs.thSI
775    o various mnc cleanups and improvements:
776      + shrink lookup tables by factor of ~4
777      + better error reporting when running out of lookup space
778      + able to handle longer path/file names (up to 500 chars)
779    o adjoint:
780      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
781      - TBD: "hidden" mom_vecinv recomp. in dynamics
782    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
783     (allow to differentiate between forcing components using new integer flags:
784      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
785     and add new flag to put Dissipation tendency out of Adams-Bashforth.
786    o ecco
787      - enable trend removal from SSH anomaly obs.
788    o adjoint
789      - a fix for PmEpR when #undef EXACT_CONSERV
790      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
791      - try to fix "hidden" recomp. in forward_step for NLFS
792        (NLFS seems broken sometimes after I checked it in)
793    o seaice:
794     - add c-grid version of the dynamic solver:
795       + three new routines that are the c-grid substitute lsr, dynsolver
796         and ostres
797       + put a few fields that were local to dynsolver into global common
798         blocks, so that I can move the computation of stresses etc into
799         seaice_lsr (saves coding but may break the adjoint).
800     - replace more hardwired parameters by runtime parameters
801     - add ice masks that mask the rhs of the implicit solvers where there
802       is no ice (commented out in seaice_dynsolver, because i am not sure
803       if this works properly), eventually this should replace the clipping
804       of ice velocities in seaice_dynsolver to +/-40cm/s.
805    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
806      include it only where its needed
807    o move balancing of fluxes before the call of external_forcing_surf
808    o seaice:
809      - correct units of turning angles (now they are really in degrees)
810      - move computation of GWATX/Y out of main routine into dynsolver
811      - initialize GWATX/Y in seaice_init
812    o Apply mask on Fresh-Water flux (needed for SSH forcing).
813      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
814    o seaice: add runtime flags for turning angles (default to zero)
815    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
816      and trend from exf forcing and ctrl control adjustments
817    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
818      (since checkpoint57x_post)
819    o change the default rotation period to 86164.s = the Earth rotation
820    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
821      and based on a reference stratification. Tested within hs94.cs-32x32x5.
822    o seaice advection: add code for choosing between the default (2nd order
823      central differences) and multiDim advection schemes provided by
824      pkg/generic_advdiff
825    o seaice:
826      - removed all references to SEAICE_GRID.h fields from
827        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
828        (cubed-sphere configuration will change a little)
829      - grid computations in seaice_init are obsolete now.
830      - cleaned up code a little so that is easier to read (hopefully).
831      - added new (better?) discretizations of default advection and diffusion
832        (turn on with SEAICEuseFluxForm)
833      - replace 1 in 3d global fields by kSurface in growth.F
834      
835    checkpoint58a_post
836    o seaice:
837      - bug fix in advect.F
838    o shelfice:
839      - separate shelfice load anomaly from pload (breaks with time
840        dependent forcing), => introduce constant field shelficeLoadAnomaly.
841        Its default is 0., but it may be computed more cleverly from (unknown)
842        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
843        done offline. A good approximation of the pressure load anomaly is
844        necessary to avoid large initial adjustment processes underneath
845        deep-reaching shelfice.
846      - small fix in ISOMIP shelfice_thermodynamics
847      - add more sophisticated thermodynamics of Hellmer (1989), this is
848        now the default
849      - give a few constants more intuitive names
850    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
851      if bulk formulae are used in long integration (especially EmPmR). Turn
852      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
853      if balancePrintMean, the imbalance that is substracted is printed to
854      STDOUT.
855    o fix bug (typo) in obcs_apply_eta.F
856    o add a new package shelfice which enables us to model the circulation
857      underneath shelf-ice with draughts of hundreds of meters.
858     - works
859     - to do: + include improved thermodynamics
860              + check whether kSurfC (from model/inc/SURFACE.h) can be used
861                instead of new field kTopC
862              + can we use topoFile, Ro_surf and existing code in ini_depth.F
863                instead of new field R_shelfIce and new code in ini_depth.F
864                and ini_mask_etc.F?
865              + adjust vertical mixing schemes?
866    o seaice pkg:
867     - add a cpp-flag to include a simple formula for a salinity dependent
868       freezing point of sea water at the surface
869     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
870       meridional stresses are now different (and hopefully correct)
871    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
872       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
873       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
874    o pkg/diagnostics: add options and parameters for regional-statistics
875       diagnostics ; define regions by reading a region-mask from a file
876       (might add other options later)
877    o pkg/bulk_force:
878     - add option and parameters to use AIM surface-flux formulae.
879     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
880       others forcing fields (defined in PARM05, parameter file "data") are loaded
881       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
882     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
883     - use the right EXCH call for uwind,vwind (to work on CS-grid).
884     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
885       and parameters (note: calcWindStress replaces .NOT.readwindstress).
886     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
887    
888    checkpoint58
889    o add "--embed-source" option to genmake2 which, when the supporting
890      tools can be compiled (as determined by genmake2) will turn on the
891      embed_files package which then embeds the entire MITgcm source code
892      (*.[fFhc] + Makefile) used for the build within the executable
893      - requested by CNH but off by default
894      - adds a paltry <9MB to the mitgcmuv executable in most cases
895      - only writes the output when useEMBEDSRC in eedata is true
896    o clean up 3-dim. relaxation codes:
897      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
898      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
899      * Thanks to Tom Haine for testing!
900    
901    checkpoint57z_post
902    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
903      affects output (@ truncation level) of exp. plume_on_slope ; updated.
904    o fix the pickup behavior for obcs in combination with ptracers
905    o fix a bug in ptracers_external_fields_load
906    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
907      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
908    o transfered surface NH pressure to eta field (if exactConserv).
909    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
910         and update lab_sea output.txt file.
911    o completing 3-dim. relaxation code: additional term
912         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
913      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
914      * At compile time, in "EXF_OPTIONS.h" set
915          #define  ALLOW_CLIMTEMP_RELAXATION
916          #define  ALLOW_CLIMSALT_RELAXATION
917      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
918          tauThetaClimRelax3Dim = 15552000.0,
919          tauSaltClimRelax3Dim  = 15552000.0,
920      * 3 cases:
921          1) Use a constant-in-time 3-dim. field
922          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
923          3) Real-time relax. to time-evolving prescribed field
924    o Adding Laplacian-type smoothness constraint on
925      initial and boundary (forcing) controls (ic, bc)
926      * enable at compile-time via
927        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
928      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
929      * Absolute scale somewhat unclear so far
930      * no area weighting was included since no other cost term does so far
931    
932    checkpoint57y_post
933    First step for a NLFS adjoint
934    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
935    o new init. routines for calc_r_star, calc_surf_dr
936    o still need to deal with ini_masks_etc
937    o testreport seemed happy
938    checkpoint57y_pre
939    
940    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
941    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
942    o add new offset feature to offline pkg (plus minor cleanup)
943    o cfc fixes for final year of integration
944    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
945      be in GCHEM_OPTIONS).
946    
947    checkpoint57x_post
948    o fix testreport Pb in multiple test experiment.
949    o cleanup our namelist syntax in verification:
950      - make it more F95 standards compliant (some work still needed)
951      - allows the vast majority of our tests to work with gfortran
952    o Non-Hydrostatic:
953     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
954     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
955    o Allow to apply AB on T,S rather than on AB(gT,gS):
956     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
957     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
958       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
959     - need a "clever" read_pickup to restart from the other AB formulation
960    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
961    o remove some unused variables (reduces number of compiler warnings)
962    o adjoint
963      * Disable useVariableViscosity for adjoint for time being
964        (there are a number of extensive recomputations)
965      * Initialize certain variables needed for adjoint
966    
967    checkpoint57w_post
968    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
969                 fix the singleCpuIO RS version of MDSWRITEFIELD
970       and add a WARNING if using globalFiles=T with multi-processors.
971    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
972      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
973    o tracer advection scheme:
974      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
975       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
976       was not very convenient).
977      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
978       (further tests needed for the implicit DST & Flux-Limiter schemes).
979    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
980      and sRef for convenience, handy, when you want to initialize
981      ptracers in a large domain with a constant non-zero value. Also,
982      untangle ptracers_init.F a little.
983    
984    checkpoint57v_post
985    o change dome exp. to use variable viscosity in side-drag terms.
986    o remove all the files from the cfc_offline test since they are now
987      incorporated into tutorial_cfc_offline which has been producing
988      identical results for a few days of testing
989    o add new parameter: sideDragFactor to enable half-slip-side BC
990      and change side-drag S/R to use viscosity from mom_calc_visc
991      (can switch back by setting sideDragFactor=0.); affects results at
992      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
993       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
994    o vorticity & strain are now computed without masking, to account for
995      no-slip-side BC in variable viscosity calculation ; mask is applied
996      anyway later on, before computing advection/coriolis terms.
997    o modify exp4 to test new obcs support for reading from external files
998      and for passive tracers
999    o fix behavior of ptracers_monitor when monitor output is written to a
1000      netcdf-file; still not independent of monitor.F (writes in the same
1001      file).
1002    o change default value of tRef (put a uniform, meaningful value for ocean
1003      & atmos) and initialize sRef (was missing, as Martin mentioned).
1004    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1005      to be proportional to enstrophy dissipation length.  Thus,
1006       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1007      This is now consistent with Smagorinsky and with the manual.
1008    
1009    checkpoint57u_post
1010    o OBCS and PTRACERS: add open boundary support for passive tracers
1011      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1012        OB-values from file; this is not different from the way theta and salinity
1013        are treated
1014      - however, Orlanski-radiation conditions are not supported, and the model
1015        will stop if you use pTracers and Orlanski at the same time.
1016      - beefed up the rountine obcs_external_fields_load: now only those open
1017        boundary values are overwritten with values from files for which there
1018        are really files, otherwise the OB-fields remain untouched. This makes
1019        it possible to use different OBs at different ends of the domain (as
1020        with EXF)
1021    o reduce number of exch calls in shap_filt (s2).
1022    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1023      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1024    
1025    checkpoint57t_post
1026    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1027    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1028      same truncation, independent of the face number: affects affects several
1029      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1030    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1031      note that biharmonic viscosity + no-slip was not tested in any experiment.
1032    o fix bug in non-linear free-surf side-drag ; generate new output for
1033      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1034    o make mnc honor the writeBinaryPrec flag for most kinds of output
1035    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1036    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1037      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1038    o add brackets in multi-terms sum to get same truncation, independent of
1039      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1040      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1041    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1042      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1043      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1044      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1045      Suggested values of viscosity parameters found in mom_calc_visc.
1046      Many new viscosity diagnostics available.
1047    
1048    checkpoint57s_post
1049    o Add clearing-house for viscosity calculations, mom_calc_visc and
1050      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1051      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1052      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1053      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1054      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1055      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1056      ViscAhStrain and viscAhTension are now retired.
1057    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1058    o In response to JMC's bug report, genmake2 now ignores any soft-links
1059      that it finds in the *current* directory when searching for files.
1060      Soft-links found in any other source directories will still work as
1061      they did before.
1062    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1063      a C routine to unlimit the stack size
1064    o mnc-ify pkg/aim snapshot vars
1065    o mnc-ify pkg/land as requested by Daniel
1066    o various changes to mnc including:
1067      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1068      - output can now be grouped so that all files within a group
1069          change the ITER portion of their names in lock-step together
1070      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1071          and works with both EXCH1 and EXCH2 (but needs more testing)
1072      - writing works for all verification test cases w/ g77 on Linux
1073    
1074    checkpoint57r_post
1075    o make MNC variable initialization happen earlier
1076    o add diagnostics for (almost) each term of the momentum Eq.
1077    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1078    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1079    o remove MINIMAL_TAVE_OUTPUT option ;
1080      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1081    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1082      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1083    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1084    o add time-dependent SST, SSS control
1085    o cost terms in ecco/ modularized (new cost_generic.F)
1086    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1087    o new infrastructure for seaice model vs. obs misfits in seaice/
1088      * driver from the_main_loop.F is seaice_cost_driver.F
1089      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1090      * gradient check in Exp. 6a of natl_box_adjoint/
1091    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1092      (see README file)
1093    
1094    checkpoint57q_post
1095    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1096    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1097      - bug was reported by Jean-Michel and Ian Fenty
1098    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1099      update exp. cpl_aim+ocn output.
1100    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1101      Needed for high-res. runs with large global files
1102      to be able to limit tapelev size
1103    o Changed some tests for adjoint:
1104      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1105      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1106      * global_ocean.90x40x15/ back to default 3-level checkpointing
1107    o Modifications to enable scripted COMMON to MODULE conversion
1108      * verification/OpenAD/code/ has necessary scripts and description;
1109      * converts, compiles and runs successfully;
1110    
1111    checkpoint57p_post
1112    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1113    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1114      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1115    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1116    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1117      (was already the case for dissipation with mom_vecinv,
1118       and also the case for grad.PhiHyd when staggered-timeStep)
1119      This will allow to put dissipation out-off the AB time-stepping.
1120     Unfortunately, affects truncation error. Update output of exp. that "fails"
1121      (cg2d matching number) and leave the others for later: front_relax(10),
1122      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1123      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1124    
1125    checkpoint57o_post
1126    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1127      (2) its ready to be documented during the 20050801 DocFest
1128    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1129      for ideal_2D_oce and lab_sea on linux_ia32_g77
1130    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1131      in global1x1_tot/code_seaice_adj to access indices 32, 33
1132      (worth another tag)
1133    
1134    checkpoint57n_post
1135    o adding precip control xx_precip 32
1136    o adding swflux control xx_swflux 33
1137    o Replacing 10 forcing penalty cost routines by 1 generic.
1138    o Implementing partitioning in time-mean and variable adjustment
1139      for atmos. state.
1140    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1141    o in natl_box_adjoint:
1142      * updated exp 1 to 10
1143        (but does not have time-mean vs. variable split results yet)
1144    o updated global1x1/*_seaice_adj/
1145      to incorporate latest changes
1146    o enable useSingleCpuIO for mdsio vector routines
1147      (applies in particular to tapelev I/O)
1148    o removed inefficient K-loop in all active_file*control*.F
1149    
1150    checkpoint57m_post
1151    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1152      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1153    o pkg/exch2: filling of face-corner halo regions is optional
1154      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1155    
1156    checkpoint57l_post
1157     tag before updating tutorials (pre-release-2)
1158    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1159       for output and interpolation of input fields onto model grid)
1160    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1161       Affects results of exp. rotating_tank ; update output.txt.
1162    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1163          and taking the square quantity and/or using a fraction-weight field.
1164    o fix aim_diagnostics_init.F mate numbers.
1165    o add mnc output capability to diagnostics/diagstat and update
1166      our cvsignore files for the ACSII output generated
1167    
1168    checkpoint57k_post
1169    o lab_sea now uses diagnostics package and provides a suite of
1170      new EXF diagnostics output.
1171    
1172    checkpoint57j_post
1173    o exf
1174      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1175        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1176        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1177      * extended diagnostics output
1178        - now includes all EXF variables
1179        - hs, hl moved to common block
1180        - separate S/R for diagnostics, called after ctrl vector is added
1181        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1182        - EXFqnet contains true Qnet (i.e. includes qsw)
1183      * updated verif. lab_sea, global_with_exf
1184      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1185        to ensure that diagnostics sees a true EXFqnet
1186    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1187    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1188      several times with different frequencies.
1189    o mnc-ify the thsice package as requested by Daniel Enderton
1190      - the monitor--MNC output needs work
1191      - many attributes need to be added (most are currently blank)
1192    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1193      - many attributes need to be added (most are currently blank)
1194    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1195    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1196    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1197      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1198         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1199    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1200     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1201    
1202    checkpoint57i_post
1203    o Diagnostics package was changed: diagnostic allocation is now deactivated
1204      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1205    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1206      add 1rst Order upwind vertical Shear.
1207    o add a quick fix for A/B checkpointing in OFFLINE mode
1208    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1209      end-run around the C/Fortran linking horror in eesup/src/timers.F
1210    o added pkg/runclock: allows user to terminate run based on wall clock
1211    o added non-hydrostatic scaling parameter: nh_am2
1212    o pkg/my82: futile attempt to make results compiler-independent by adding
1213      some "_d 0", etc. no effect.
1214    o for mnc output, fill the 'T' coordinate var with myTime and create a
1215      separate 'iter' variable for iteration count
1216    o pkg/diagnostics:
1217      add new capability: output of Global/Regional & per-level statistics ;
1218      tested against monitor output (including land & thSIce) on various exp.
1219    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1220    
1221    checkpoint57h_done
1222      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1223      data.diagnostics, data.gchem, data.ptracers) is done.
1224    
1225    o pkg/diagnostics: prepare for Global/Regional statistics.
1226      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1227    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1228      and rename it: DIFFERENT_MULTIPLE
1229    
1230    checkpoint57h_post
1231    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1232    o pkg/diagnostics: change output frequency, now in seconds (instead
1233      of Nb of iterations). This requires to change data.diagnostics.
1234    checkpoint57h_pre
1235    
1236    o in mnc, let the user create the output dir if both mnc_outdir_date
1237      and mnc_outdir_num are false
1238    o add fflags() to pkg/diagnostics which allows one to specify, on a
1239      per-file basis, the file precision [default behavior is unchanged]
1240    o added diagnostics to pkg/kpp, including computation of mixed layer
1241      depth based on a temperature/density criterion
1242    o updated verification/natl_box to test the new pkg/kpp diagnostics
1243    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1244    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1245    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1246      not mnc -- this mistake was found by JMC and is now corrected
1247    
1248    checkpoint57g_post
1249    o add Adams-Bashforth 3rd Order time stepping:
1250      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1251      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1252    checkpoint57g_pre
1253    
1254    o make lambda[Theta,Salt]ClimRelax spatially varying
1255      (default remains spatially uniform constant based on tau)
1256    o added new control variables
1257      * init. uVel, vVel, etanN
1258      * lambda[Theta,Salt]ClimRelax
1259    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1260      (suggested by G. Forget)
1261    
1262    checkpoint57f_post
1263    o add parameter "baseTime" = model base time = time at iteration zero
1264      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1265      account for baseTime shift
1266    o move Coriolis arrays from PARAMS.h to GRID.h
1267    checkpoint57f_pre
1268    
1269    o mnc-ifying the seaice package
1270    o introduced an alternative length scale calculation for use in the limiting
1271      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1272    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1273    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1274      as well as grad(vort3).  Made it compatible with both approximate form
1275      for the cubed sphere and full form of these gradients.  Added flag
1276      useFullLeith to select between approximate and full form.  
1277    o add "d0" in getcon.F to reduce differences between compilers/platforms
1278      update output.txt of exp. fizhi-gridalt-hs
1279    o change port_rand funtion to allow to set the seed.
1280    o fix obscure MNC bug involving conversion between reals and integers
1281      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1282        new version is now more standards-compliant
1283    o adjoint-related modifications
1284      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1285      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1286      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1287    
1288    checkpoint57e_post
1289    o Adding eddy stress controls a la Ferreira et al.
1290    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1291    
1292    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1293      update output.txt of exp. fizhi-gridalt-hs
1294    o add more "Z" dimensions and associated coordinate vars to MNC
1295    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1296    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1297      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1298      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1299      months and years.  Requires pkg/cal.
1300    o diagnostics: add pickup functionality
1301      - off by default for backwards compatibility
1302      - current version only uses MDSIO -- MNC will be added
1303    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1304    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1305    
1306    checkpoint57d_post
1307    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1308    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1309      output from the diagnostics package
1310    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1311    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1312      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1313    o add coordinate variables to the MNC output from the diagnostics package
1314    o change MNC-flags default value: true when useMNC=TRUE
1315    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1316      the ability (off by default) to read the grid information using MNC
1317    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1318    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1319    o do snap-shot diagnostics at the middle of the time-interval (instead of
1320      at the end).
1321    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1322      new test for AIM with thSIce + slab-ocean
1323    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1324    o move state variable diagnostics to the beginning of the time step ;
1325      (note: still needs some work specially for snap-shot diagnostics)
1326      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1327    
1328    checkpoint57c_post
1329    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1330    o generate new output.txt files on faulks with g77 & the new -ieee option
1331    checkpoint57c_pre
1332    
1333    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1334      update output.txt of exp. global_ocean.90x40x15
1335    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1336      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1337    o add saltFlux(+File) forcing capability with periodicExternalForcing
1338    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1339    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1340    o improvements for the MNC output from DIAGNOSTICS:
1341      - correct handling of the unlimitied dimension
1342      - all dims now have associated coordinate variables
1343      - variables located at U, V, and Corner ("Z") points are now written
1344        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1345        *all* data points are output
1346    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1347    o added pkg/seaice/seaice_monitor.F
1348    o mdsio_readfield.F can now read files visible only to master MPI process.
1349    o pkg/seaice: some test code for ice-modified ocean stress
1350    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1351      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1352      spurious negative numbers for precipitation and humidity.  Will cause
1353      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1354    o pkg/ctrl/
1355      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1356        May be enabled via doPackDiag
1357      *  introduce z-scaling of
1358         + gradient (doZscalePack) and
1359         + control (doZscaleUnpack)
1360    o pkg/mdsio/
1361      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1362      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1363    
1364    checkpoint57b_post
1365    o simplify options in diagnostics_fill arguments (remove weird combinations)
1366    o fix MNC coordinate variables so that they now contain per-face index
1367      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1368      general, EXCH2 grids are only aligned to a "local" coordinate system
1369    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1370    o Implement instantaneous output within pkg diagnostics:
1371      setting a negative frequency in data.diagnostics produces
1372     "snap-shot" output (as opposed to time-average if freq > 0)
1373    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1374      NOTE: change ptracer diagnostics name: use 2 characters to work with
1375            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1376    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1377      becomes the coordinate variable for the 'T' dimension
1378    o add CF-style coordinate variables to MNC
1379      - just a first cut:  numbers are meaningless on the cubesphere and
1380        missing along the T axis but otherwise it works!
1381    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1382    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1383    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1384      this is based directly on what the model compute, so that the content of
1385      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1386    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1387    o clean up build options files for SunOS, in particular
1388      - remove -traditional from xmakedepend
1389      - change -xarch=v9 to -xarch=native for f77
1390      - restore use of make (not gmake)
1391      - add CC=gcc if using g77
1392    o changes per discussion of AM, JMC, & EH3 today:
1393      - move redundant "grid" variables out of "state" -- in preparation of
1394        creating proper CF-style coordinate variables and in recognition
1395        that any/all grid variables can be easily copied (eg. w/NCO) from
1396        the grid files into any of the other NetCDF files
1397      - *always* output grid variables with MDSIO (this will eventually be
1398        changed)
1399      - output MNC grid file if useMNC is true
1400    o every instance of _END_MASTER() has been found and replaced with
1401      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1402      preprocessors
1403    o re-arrange diagnostics pkg initialisation:
1404     - allow each package to extend the available diagnostics list
1405     - add some checking and fix small problems (multi-threaded, ...)
1406     - new S/R diagnostics_fill (replace fill_diagnostics):
1407       look through the short list of active diag. (instead of the long list)
1408       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1409    
1410    checkpoint57a_post
1411    o this set of changes restores TAMC compatibility
1412      tested for global_ocean.90x40x15 adjoint on trough
1413      (what a pain)
1414    
1415    checkpoint57a_pre
1416    o some modifs in tools/build_options for sunos
1417    o call ctrl_pack for ctrl at end for optimcycle=0
1418    
1419    checkpoint57
1420    o add horizontal bi-harmonic viscosity for vertical velocity
1421      - new parameter viscA4W (defaults to viscA4)
1422      - affects only non-hydrostatic code
1423      - to be done: no-slip lateral boundary conditions
1424    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1425    o implement Implicit Vertical advection for pTracers
1426    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1427      (implemented also for implicit vertical diffusion & advection)
1428    o OBCS: extend application of tracer open boundary conditions
1429      to a strip beyond the boundary of width Olx/Oly
1430    o add call monitor to TAF set of required calls (flow directives)
1431      and include in natl_box_adjoint
1432    o untangle a few ifdefs related to cost, ctrl, autodiff
1433      untangel a few ALLOW_ECCO_OPTIMIZATION
1434    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1435      (theta2, salt2 in ecco_cost_weights)
1436    
1437    checkpoint56c_post
1438    o OBCS as control variables
1439      - update ctrl_ad_diff.list, obcs_ad_diff.list
1440      - remove balance of obcs controls from default
1441      - fix index bug nobcs in ctrl_init
1442      - fix dummy fields filen in ctrl_pack
1443      - add dummy weights for obcs
1444    o lsopt: comment out fort.94 output
1445    o optim:
1446      - remove unnecessary header files
1447      - adjusted namelists
1448      - add xerbla.F to Makefile
1449    o exf:
1450      - multiple modifications of exf_check_range
1451      - unit change in exf_init_runoff from [m/year] to [m/s]
1452    o mdsio:
1453      - i/o-vector change debugLevel from debLevA to debLevB
1454    
1455    checkpoint56b_post
1456    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1457      is called from DO_THE_MODEL_IO
1458      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1459      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1460      - clean up PTRACERS_WRITE_TIMEAVE a little
1461    o add another verification experiment that tests both the cfc-pkg and
1462      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1463      reactive tendencies treated inline with regular timestepping
1464    o testreport previously did a lousy job of comparing small numbers, so
1465      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1466      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1467      testreport.
1468    o ptracers_monitor: bug fix for MPI
1469    
1470    checkpoint56a_post
1471    o GCHEM: finish reorganizating the package
1472      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1473        (introduces another 3D-array for each passive tracer, but only if
1474        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1475        gchemTendency is not needed because the timestep is done separately)
1476      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1477      - GCHEM is now---more or less cleanly---separate from PTRACERS
1478      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1479        so clear to me how that should be done in a general way.
1480    o CFC: improve formatting of output in CFC_ATMOS
1481    o PTRACERS:
1482      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1483        that ALL experiments with ptracers enable can be checked. This makes
1484        GCHEM_MONITOR obsolete.
1485      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1486        monitorFreq
1487      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1488    o add PTRACERS (PTR0[1-5]) to testreport output
1489    o exf_check_range:
1490      * default changed to .TRUE.
1491      * will check values for niter0 if debLevA, every timestep if debLevB
1492      * STOP in exf_check_range if 'out of range'
1493      * range chosen generous to allow for potential extema
1494      TBD: a version with stricter range
1495           permitted range would be runtime parameters
1496  o GMredi:  o GMredi:
1497    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1498    - 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 1501  o GCHEM:
1501    - 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
1502      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1503    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1504      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1505        this flag is now only visible within GCHEM-pkg routines.
1506      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1507        be replaced by a 3D array that is computed before thermodynamics; for
1508        this, the tracer ID iTracer had to be included into the parameter list
1509        of ptracers_forcing
1510      - set up forward_step to call gchem_forcing, that will replace
1511        gchem_forcing_int in ptracers_forcing
1512      - cleaning up
1513  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
1514    
1515  checkpoint56  checkpoint56

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