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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.869 by jmc, Fri Sep 7 01:16:11 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 testreport:
8      Allow to choose (per experiment) the list of tested output variables
9       and the main variable (used to issue a pass/FAIL ) ;
10      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
11      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
12      Also modify printing of summary:
13       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
14       b) echo the list of tested variables in the individual summary.txt of
15          each experiment.
16    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
17      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
18      (but still depend on the tile decompostion of the domain).
19    o pkg/seaice: change a discretization detail to make the B-grid code
20      "more symmetric". This change is likely to remove all "ridges/leads" that
21      where quasi-aligned with the grid in B-grid solutions. It may also be
22      the solution to the stress coupling issues with the B-grid.
23    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
24      remove .cvsignore from input dir. (since testreport no longer run here).
25    o pkg/thsice:
26     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
27     - fix reshaping of sea-ice just after advection:
28       melt all the ice only if ice-volume is too small.
29     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
30       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
31     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
32    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
33      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
34    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
35      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
36      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
37      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
38      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
39      -> update output.txt
40    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
41     this affects truncation error: -> update output.txt of exp:
42      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
43      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
44    
45    checkpoint59f
46    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
47    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
48      a bounded range (in forward mode)
49    o pkg/ecco, ctrl, autodiff and mom_common:
50     internal parameter controls, completements of implementations
51    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
52    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
53      (not seem any difference in testing results).
54    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
55       at face corners.
56    o pkg/generic_advdiff:
57     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
58      loop range indices for computing vertical advection tendency
59      and do the calculation in the interior only (no overlap) ;
60      for now, only implemented for SOM advection (to save CPU time).
61     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
62    o exch2 adjoint
63      First set of changes:
64      - add exch2 hand-written adjoint templates
65      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
66        This will require cleanup in pkg/autodiff/*.F
67        (changed routines currently kept separate in verif. code/)
68      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
69        that used to hide exch2 or cubed-sphere specific code
70        (commented via 'cph-exch2')
71    o pkg/seaice
72      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
73    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
74       output of global_ocean.cs32x15.thsice .
75    
76    checkpoint59e
77    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
78      for B-grid vector (not yet tested) and C-grid vector (<- only used
79      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
80    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
81      (#ifdef ALLOW_SALT_PLUME)
82    o gather_2d/scatter_2d: removed halo regions
83    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
84      scheme and the corresponding test case (under front_relax dir). For now,
85      only available with Skew-flux form and not yet tested in realistic set-up.
86      adjoint: store directives updated, but gradient checks deteriorated,
87      so maybe GM/Redi adjoint is now broken.
88    o seaice adjoint
89      * add AREA, HEFF, HSNOW as control variable
90        (should not change lab_sea results)
91      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
92    o pkg/seaice:
93      * added computation of saltFlux in seaice_growth;
94        For time being, sea ice salinity is assumed constant
95        contribution of snow flooding to freshening of sea ice is neglected.
96        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
97        defaults to 0.0 in order to maintain backward compatibility.
98        Typical values for SEAICE_salinity are 4 to 10 g/kg.
99      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
100      * added SEAICE_availHeatFrac, which specifies fraction of surface level
101        heat content used to melt or grow ice
102      * commented out cap of HICE: it helps keep ice thinner
103      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
104      * applied OBCS T/S mask to HEFFM sea ice mask
105    
106    checkpoint59d
107    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
108     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
109     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
110    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
111     and change default value of parameter "GM_Small_Number";
112     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
113       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
114       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
115    o pkg/ecco: cost function when applying pkg/smooth to controls
116    o pkg/ctrl: add forcingPrecond run time parameter
117    o pkg/seaice:
118     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
119     - fix bug in metric terms of u-equation in LSR solver (implicit part),
120       changes verification/lab_sea
121     - rearrange implicit part of u-equation in LSR solver to make it easier to
122       read, understand, and debug. This causes changes at the truncation level.
123     - fix (serious) bug in the boundary conditions (sign error in the implicit
124       part) of the LSR solver. Changes all LSR results.
125     - fixed problem with HSNOW initialization to avoid thick snow when AREA
126       is initilized with small values - does not change lab_sea results.
127     - added HsnowFile initialization capability
128    o pkg/smooth: addition to model/src and pkg/ctrl so allow
129     initialization of pkg/smooth and application to control vector
130    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
131    o dependencies: pkg/profiles requires pkg/cal
132    o pkg/profiles:
133     - added option ALLOW_PROFILES_GENERICGRID
134         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
135         that interpolation information (grid points and coefficients) is provided
136         within the netcdf input files.
137         -> sample matlab scripts can be found in MITgcm_contrib/gael
138         that allow you to prepare netcdf input files.
139     - also modified: cleaner include statements, cleaner error print statements,
140       cleaner stops when error, and more tests of the netcdf input files consistency.
141    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
142    o pkg/seaice:
143     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
144       requires a new routine: seaice_diagnostics_fill.F
145     - make sure that seaice does not move if not forced (pressure replacement
146       method, Hibler and Ip, 1995), changes results
147     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
148     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
149       It is turned off by default (=-1.), because it changes the results.
150     - make it possible to read AREA from a file, too.
151    
152    checkpoint59c
153    o add S/R and diagnostics for oceanic mixed-layer depth
154    o move GMRedi call after all vertical mixing schemes (including KPP)
155    o pkg/thsice:
156     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
157      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
158    o pkg/obcs:
159     - bug fix for balance code
160    o pkg/seaice:
161      - allow values of SEAICE_elasticParm > 1
162      - add new parameter SEAICE_evpTauRelax as an alternative
163        to SEAICE_elasticParm
164      - make lsr boundary conditions free slip (by default), changes result
165      - add code for no slip boundary conditions for lsr
166      - set minimum of zeta to zero (and not 4e8) (changes results)
167      - add a cap on AREA after advecting AREA if seaice_growth is not called
168    o change calculation of Visbeck K:
169      - no longer depend on tapering scheme; instead, compute slope (limited
170        by GM_maxSlope). this is equivalent to what was comuted before with
171        clipping or linear tappering.
172      - fix vertical averaging (wrong by 1/2 level)
173      - leave the old version (but will not be maintained) within
174        #ifdef OLD_VISBECK_CALC / #endif
175      - update output of exp. ideal_2D_oce
176    o change error catch in calc_r_star to improve vectorization
177    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
178      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
179    o adjoint:
180      Re-organized adjoint checkpointing according to Matt Mazloff
181      (but with modifs/completions/cleanups)
182      Storing is now bundled into large arrays to optimized I/O
183      (and second step in cleanup of the_main_loop)
184    
185    checkpoint59b
186    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
187      - export/import (between ocean & coupler) fields needed for ocean DIC.
188    o pkg/seaice:
189      - get rid of three more exchanges seaice_calc_viscosities (required
190        different loop boundaries in seaice_lsr and seaice_ocean_stress)
191      - bug fix in seaice_ocean_stress (update of lab_sea required)
192      - reduce loop boundaries to necessary minimum also in seaice_evp
193      - go back to the old way of computing deltaC/Z as the adjoint likes that
194        better
195    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
196      passive tracer to an Age Tracer) + update output.txt
197    o pkg/exf:
198      - implement A-grid / C-grid selection for wind-stress input files.
199      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
200      for now, in exf_bulk_largeyeager04.F only :
201      - change implementation for case where windspeed + 2. components wind-stress
202        are read-in. AND use rhoConstFresh to convert evap.
203    o pkg/seaice:
204      - use correct EXCH_UV for wind-forcing (on A-grid).
205      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
206        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
207    o pkg/exf:
208      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
209      EXF_INTERPOLATION:
210      - merge global_with_exf/code version of exf_interp_read.F
211        to the main code ;
212      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
213        reading the file ; Important: This options needs to be defined to recover
214        previous code.
215        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
216      - no longer loose real*8 precision along the way when using exf_iprec=64.
217    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
218      - change discretisation of evp-solver in order to avoid another exchange
219        (changes lab_sea) and clean up a little
220      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
221        help the adjoint (this also changes the results slightly)
222      - add a few "_d 0" where they had been missing in seaice_evp.F
223      - cleaning up: remove unused seaice_calc_rhs.F
224    o pkg/exf: some cleaning-up:
225      - change various "constants" into runtime parameters
226      - cleaned-up Large&Yeager04 routine which should eventually
227        replace exf_bulkformulae.F (changed names of S/R and CPP)
228        and merged various ALLOW_ATM_WIND options
229     only used with thsice pkg (in thsice_get_exf.F):
230      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
231        which are used when useStabilityFct_overIce=TRUE (= the default)
232      - change default values of ice & snow emissivity and scale downward LW
233        by ice & snow emissivity.
234    o pkg/thsice:
235     fix few little problems, in thsice_calc_thickn.F:
236      - growth vertically (and not laterally) if iceFrac == iceMaskMax
237      - melt only laterally if hIce < hThinIce (as the comments say)
238      and in thsice_extend.F:
239      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
240      - start to form ice as soon as the minimum ice-volume is reachable.
241     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
242      and cpl_aim+ocn
243    o pkg/kpp
244     - move computation of surface related input fields to KPP into a new
245       subroutine kpp_forcing_surf.F
246     - remove wrong (within bi,bj loops) EXCH calls.
247     - little cleaning (add argument myThid in last position, cvs header ...)
248     - for now, fix conservation problem by exchanging KPPviscAz (may not
249       be the best fix)
250    o pkg/seaice
251     - check for inconsistent evp parameter/cpp-flag combination
252     - remove leftover errIO flat for obsolete name list error handling
253    o OpenAD
254     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
255    
256    checkpoint59a
257    o pkg/seaice: some parameter clarifications and a little bit of clean up
258    o pkg/thsice: rename run-time parameters:
259       himin       -> hIceMin
260       himin0      -> hThinIce
261       hihig       -> hThickIce
262       i0          -> i0swFrac
263       transCoef   -> bMeltCoef
264       frac_energy -> fracMelting
265      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
266       with default values (for now) that do not change the results.
267      remove old version of thsice vars advection in pkg/seaice.
268    o in FFIELDS.h:
269      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
270      - make pLoad & sIceLoad always available (but still only used if
271         ATMOSPHERIC_LOADING is #define).
272    o pkg/kpp: replaced _KPP_RL with _RL
273    o bug fixes for vertical diffusivity computations when both KPP and
274        3D diffusivity arrays are used.
275    o pkg/seaice: fix bug in evp solver, while doing that
276      - change (improve?) discretization of stress computations for both
277        cgrid-lsr and evp solver
278      - add a new routine to compute strain rates
279      - the above changes lab_sea results
280      - add no slip conditions for evp solver (off by default), lsr-version
281        may follow
282      - fix exchange for shear at Z-points (does not change lab_sea)
283      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
284        (to force the user to pick a time step since there is not "safe" way
285        of choosing it)
286      - add principal stress diagnostics
287      - rearrange fields for evp a little to avoid having to call a: too many
288        exchanges and b: exchanges for stress trensor components which we do
289        not have.
290      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
291        of evp, complete rewrite for lsr case (latter is does not yet work
292        in all cases)
293    o pkg/kpp: add code to have mixing in shelf ice caverns
294      - add myThid to all kpp routines (long overdue)
295    
296    checkpoint59
297    o pkg/exf:
298      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
299        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
300      - move exf header files from lower_case.h to UPPER_CASE.h ;
301        add missing cvs Header & Name
302      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
303      - add namelist param. selectStressGridPosition, exf_monFreq
304      - retire many _CLIM routines, and remove data.exf_clim
305        + params moved to data.exf
306        + climsst, climsss now handled by exf_set_gen, i.e.
307          climss?period=0 refers to constant field,
308          climss?period=-12 to monthly forcing
309      - split up namelists in data.exf
310    o pkg/seaice:
311      - remove seaice_exch and seaice_exch_uv
312      - remove superfluous exchange of theta
313      - add myThid to seaice_budget_ocean/ice
314      - add new interface for atmospheric wind forcing (C-grid only)
315        + new routine
316        + two new field (taux, tauy for stress over ice)
317        + removed one global field (DAIRN) for C-grid case only
318    o pkg/thsise
319      - 2nd set of modifs for thsice adjoint in conjunction with exf
320    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
321    
322    checkpoint58y_post
323    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
324      vertical diffusivity, similar to that in MOM4; turned on using
325      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
326      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
327    o Added capability for 3D specification of background vertical diffusion
328      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
329      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
330      "data" file that contains the 3D vertical diffusivity coefficients.
331    o ice dynamics (pkg/seaice) with thsice thermodynamics:
332      - add code within pkg thsice to advect & diffuse sea-ice fields
333      similar to (and will replace) what has been added in  seaice_advdiff.F,
334      but: - conserving Mass, Heat & Salt.
335           - better when using non-linear advection scheme (not yet fully tested)
336           - can also be used in atmospheric set-up (for now, only the diffusion).
337    
338    checkpoint58x_post
339    o IO option for global-file compact format:
340      - add options when generating topology (utils/exch2/matlab-topology-generator)
341      - add I/O capability (pkg/mdsio).
342      - adapt utils/matlab/rdmds.m to read this format.
343      for now long-line format not yet supported by pkg/mdsio (& exch2).
344    o shelfice: add a few diagnostics
345    
346    checkpoint58w_post
347    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
348      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
349      (and replace horiVertRatio in NH code).
350      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
351                         and tutorial_plume_on_slope (sensitive to truncation)
352    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
353      directly to drive seaice model (C-grid only)
354    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
355     - reintroduce computation of wind from stress,
356     - compute tau (in exf_bulkformulae.F) from windstress averaged to
357       mass points to avoid tau = 0
358     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
359    o rdmnc.m: make it work with "global" files created with gluemnc
360    o rdmnc.m : some improvements in dealing with singleton dimension
361      (tested on all testreport mnc output files).
362    o genmake2: disable pkg/profiles if netcdf test fails.
363    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
364    o move call to cal_readparms up to make calendar parameters/variable available
365      to all packages
366    
367    checkpoint58v_post
368    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
369      useDynP_inEos_Zc tested.
370    o pkg/exf: changes to properly interpolate/mask/scale initial fields
371    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
372      and portions thereof.  See read_cs.txt for description and examples.
373    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
374      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
375      following the great-circle arc between those 2 points.
376    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
377      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
378    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
379     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
380     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
381     - still needs work (not working with some options ; efficiency to improve)
382       and serious testing.
383     - use this scheme for temperature & salinity in 2 advection test exp.:
384       advect_xy & advect_xz, respectively.
385    
386    checkpoint58u_post
387    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
388    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
389    o testreport: add option "-skipdir" to skip some test.
390    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
391      momentum calculation.
392    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
393    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
394      remove checkpoint.F and the_correction_step.F (no longer used);
395      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
396    o add option (linFSConserveTr) to correct for tracer source/sink due to
397      Linear Free surface
398    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
399    o pkg/thsice: fix reading mnc-pickups
400    
401    checkpoint58t_post
402    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
403    o pkg/mdsio:
404     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
405       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
406       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
407     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
408     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
409       either MDS_READ_FIELD or MDS_WRITE_FIELD )
410     - new S/R (to replace MDSWRITEMETA), which allows to write more
411       informations (variable names, time ...) to meta files.
412     - modify rdmds.m to give back the meta file content.
413    o pkg/diagnostics: change vertical interpolation to be safer, and more
414       flexible (define p-levels to interpolate to in data.diagnostics);
415      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
416       diagnostic pointer.
417    o pkg/seaice: more cleaning up of seaice_growth, added many comments
418    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
419    o fix multi-category seaice:
420     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
421       SEAICE_MULTICATEGORY
422     - fix short wave heat flux
423    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
424       and allow to use EVP solver. Change forward lab_sea: test both EVP
425       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
426    o Initial check-in of lab_sea adjoint
427      (very similar to natl_box_adjoint/code_seaice)
428      * used C-grid and EVP solver
429      * used KPP, GM/Redi
430      * uses inAdExact=.TRUE.
431      * gradient checks fail for both ADM and TLM
432        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
433        f.d. gradients actually seem more problematic than ADM, TLM gradients;
434        issue is related to forward mismatch between g77 an ifort
435    o pkg/seaice: overhaul of thermodynamics
436     - growth.F and groatb.F are replaced by new routine seaice_growth.F
437     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
438     - move a few global fields out of SEAICE.h into seaice_growth.F and
439       make them 2D (FICE/QNETO/ ...)
440     - remove FO (it is the same as QNETO)
441     - introduce a few local fields to avoid modifying external fields such
442       as atemp, etc.
443    
444    checkpoint58s_post
445    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
446      changed exf_set_gen.F so that
447        genperiod=0 means input file is one time-constant field and
448        genperiod=-12 means input file contains 12 monthly means
449    o CG2D: use pre-computed solver main-diagonal (stored in common block);
450      this affects truncation error ; generate new output file for exp. which
451      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
452        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
453        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
454        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
455        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
456        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
457    o start implementation of deep-atmosphere and anelastic formulation
458    o verification: remove 2nd copy of input files and use script "prepare_run"
459      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
460    o mom_common/vecinv/fluxform: fix a few initialisation isssues
461    o profiles: fix for multithreaded case
462    
463    o diagnostics: rename few diags:
464      s/'PRESSURE'/'RCENTER '/g
465      s/'TICE    '/'oceFreez'/g
466      s/'TAUX    '/'oceTAUX '/g
467      s/'TAUY    '/'oceTAUY '/g
468      s/'SWFLUX  '/'oceQsw  '/g
469      s/DIFx/DFxE/g
470      s/DIFy/DFyE/g
471      and add few ocean-forcing diagnostics:
472      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
473    o modifications to pkg/seaice/growth.F and budget.F, which change results of
474      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
475      as actual snow thickness.  It now refers everywhere to effective snow
476      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
477    
478    checkpoint58r_post
479    o modifications to pkg/seaice/growth.F, which change results of
480      lab_sea experiment: fixes pertain to melting snow over open water, to
481      masking EVAP under sea ice, and to using the correct AREA variable for
482      computations of EVAP, PRECIP, HSNOW, and GHEFF
483    o add ability to read bathy, salt, and theta using MNC (off by def)
484    o add flooding algorithm and advection of HSNOW for pkg/seaice;
485      both are turned off by default and do no change any results
486    o seaice advection with pkg/thsice: a step toward the use of non-linear
487      advection scheme, but #ifdef or commented out for now (requires more EXCH).
488    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
489      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
490      in natl_box (affects results @ truncation level: update output.txt)
491    o multi-threading and IO:
492      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
493      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
494        (needed to work with SingleCpuIO): tested in all verif. exp.
495    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
496      affects the results (but none of the verification test uses this scheme).
497    o Adding some pkg/diagnostics capability to pkg/seaice
498      (will certainly be subject to changes)
499    o ctrl: adding new control variables:
500      lwflux, lwdown, evap, snowprecip, apressure, runoff
501    
502    checkpoint58q_post
503    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
504      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
505      high_res_cube configuration by 4% on Columbia.
506    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
507      add (in global_with_exf/code) a version of EXF_INTERP_READ without
508      dynamical allocation (seems to work in multi-threaded).
509    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
510      single CPU io) so that TAF does not have to see EESUPPORT.h
511    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
512    
513    checkpoint58p_post
514    o obcs: stop if obcs is used with useCDscheme = .true.
515    o shelfice:
516     - fix a sign error so that no slip at shelfice interface works
517     - remove stop for combination non-hydrostatic code and shelfice. That does
518       not mean, that the results are correct, but at least they are numerically
519       stable
520    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
521    o added adjoint exch routined for all exch*3d* routines
522      and updated flow directives
523    
524    checkpoint58o_post
525    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
526      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
527    o change controling S/R for writing pickup file (new S/R do_write_pickup)
528      and clean-up reading/writing of pickup files.
529    o fix local version of read/write pickup (NH part) in rotating_tank/code
530    o simplify EXCH interface:
531     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
532     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
533    o added the regrid package
534    o shelfice:
535     - add a simple boundary layer scheme to reduce noise
536     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
537    
538    checkpoint58n_post
539    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
540       local variable (not in common block).
541    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
542      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
543      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
544        to work with SingleCpuIO.
545    o add "_d 0" to real constant of pkg/cfc subroutines ;
546       update exp. cfc_exemple & tutorial_cfc_offline output files.
547    o multi-threading and IO:
548      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
549        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
550      - barrier before and after reading.
551      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
552      - avoid using MDS_WRITELOCAL for LAND pkg output.
553      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
554        common-block variables ; Allows multi-threading with master-thread IO.
555    o change default MAX_NO_THREADS from 32 to 4 ;
556      and stop cleanly when MAX_NO_THREADS is too small.
557    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
558    
559    checkpoint58m_post
560    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
561       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
562    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
563       keep global_ocean.90x40x15 (for AD testing) with former secondary test
564       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
565    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
566        add MITgcm_tutorials (= code + all the tutorials)
567    o ecco, option to compute cost for total ssh (mean+anom)
568    o consistent with addition of ptracer and ssh in pkg/profiles
569    o profiles: adding ptracer and ssh
570    o testreport: change multi-test output-file name
571      (from output.txt.{name} to output.{name}.txt)
572    o profiles: now ok for mutli-tiles case
573    o seaice: add 4 parameters for different advection schemes for area,
574      (effective) seaice thickness, enthalphy, and snow height. Their default
575      is the standard parameter SEAICEadvScheme
576    o calc_gw:
577     - add cosFacU in zonal viscous flux (harmonic.visc.).
578     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
579       of tutorial_plume_on_slope.
580    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
581    o calc_gw: true flux-form, account for horizontal grid spacing.
582      update rotating_tank results, but not plume_on_slope (affected at
583      truncation level, 11 digits).
584    
585    checkpoint58l_post
586    o calc_gw:
587     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
588     - remove side-drag for now (need to fix it); update plume_on_slope results.
589     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
590    o commit code to make SST/SSS weights spatially variable
591      (based on either variable in-situ or variable initial T/S weights)
592    o pkg/ecco:
593      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
594        now based on horizontally varying weights wthetaLev, wsaltLev
595      * cost_averagesflags now returns year indices in addition to day, month
596      * sflux balance is performed on annual basis
597        (sflxumm, sfluxmm2, bal_sfluxmm)
598      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
599        including separate counting and multipliers
600    o pkg/rbcs
601      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
602    
603    checkpoint58k_post
604    o testreport:
605     - always build in dir. "build" (if not there, mkdir build instead of building
606       & running in input)
607     - run in dir run (if it exists), in build otherwise.
608     - call prepare_run (if input/prepare_run exists)
609     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
610    o pkg/exf modifications to interpolation and rotation routines for more
611       reasonable treatment of North Pole singularity: for tracers North Pole
612       value is set to northernmost zonal-mean value, for zonal velocity it is
613       set to zero, and for meridional velocity it is set to northernmost value.
614    o pkg/exf/exf_check_range.F
615     - add tile index to diagnostics and move stop statement to the very
616       end of the routine.
617    o pkg/diagnostics: (diagnostics_main_init.F)
618      define title of isomorphic variables according to the current config.
619    o pkg/thsice with pkg/seaice dynamics:
620    - fix domain of computation (interior only, required for exf) and do exchanges
621    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
622    o towards a standard way of dealing with multi-threading in MONITOR
623      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
624    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
625       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
626    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
627    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
628    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
629       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
630    o tracer advection:
631     - clean-up and simplify calc_common_factors.F
632     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
633       advection subroutine (but still not used within DST advection S/R)
634    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
635    
636    checkpoint58j_post
637    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
638      from file (collects calls previously in FORWARD_STEP)
639    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
640    o adjoint store dir. adjusted accordingly
641    o genmake2
642      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
643    
644    checkpoint58i_post
645    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
646      on wind stress (SEAICEstressFactor defaults to 1.)
647    o Total number of Timers is finite (<=40): comment out 2 non-essential one
648      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
649    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
650      on CS-grid: no longer loosing mass.
651    o exf & curvilinear-grid: no longer modify longitude xC & xG.
652    o pkg/ggl90: fix sloppy output and fix a bug
653    o pkg/seaice: added SEAICEuseEVPpickup parameter
654      - Set to false in order to start EVP solver with
655        non-EVP pickup files when using SEAICEuseEVP
656      - fix sign error in diffusion in seaice_calc_rhs
657    
658    checkpoint58h_post
659    * Modifications for bottom topography control
660      o replace hFacC by _hFacC at various places
661      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
662      o add non-self-adjoint cg2d_nsa
663      o update autodiff support routines
664      o re-initialise hfac after ctrl_depth_ini
665      o works for 5x5 box, doesnt work for global_ocean.90x40x15
666    * Adding verification for 5x5 box (4-layer) bottom topography control
667    
668    checkpoint58g_post
669    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
670       used for mean seasonal cycle, mean diurnal cycle); add an example
671       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
672    o pkg/ggl90:
673      - add parameter (minimum surface kinetic energy)
674      - fix bug (avoiding division by zero)
675    o couple pkg/thsice to pkg/seaice:
676      - modify advection in seaice to accomodate new scalar fields to be advected
677      - only muliDimAdection scheme work with seaice/thsice
678      - mapping of thsice-variables to seaice-variables, back and forth
679      - does not break the verification experiments, but does not give the
680        desired results either
681    o pkg/seaice
682      - make (default) second order advection a bit less confusing?
683    
684    checkpoint58f_post
685    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
686      to pkg/seaice):
687      - new routines thsice_map_exf and thsice_get_exf provide the interface
688      - add an additional formal parameter to thsice_solve4temp
689    o pkg/exf:
690      - add new fields wspeed, snowprecip (to be able to couple to thsice)
691      - correct Stefan-Boltzmann constant
692      - new parameter for longwave surface emittance
693      - separate some stuff from exf_bulkformulae into new routines  
694        exf_radiation, exf_wind
695      - add new parameters and constants: longwave emissivity for ocean, ice
696        and snow, evaporation parameters over ice
697      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
698        either wind from stress or stress from wind
699    o pkg/thSIce:
700    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
701    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
702       and THSICE_CALC_THICKN
703    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
704    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
705      to make debugging easier.
706    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
707    o pkg/bulk_force:
708      - clean-up comments and parameters ;
709      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
710    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
711      generate new output for test-experiment: aim.5l_cs.thSI
712    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
713      testreport accordingly
714    
715    checkpoint58e_post
716    o SEAICE_CGRID adjoint done
717    o R_STAR adjoint implemented.
718      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
719      * need to sort out init. of h0facc, etc.
720    o Make pkg/profile fully independent of ecco,cost, etc. stuff
721      to be able to use it in pure forward.
722    
723    checkpoint58d_post
724    o upgrade simple test-experiment to tutorial example:
725     step.1: duplicate the experiment and (step.2) will remove the old copy.
726      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
727      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
728      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
729      tutorial_global_oce_biogeo    <- copy of dic_example
730      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
731      tutorial_plume_on_slope       <- copy of plume_on_slope
732      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
733      tutorial_global_oce_optim     <- empty for now (David ?)
734      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
735     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
736    o correct a sign problem in cost_scat.F
737    o obcs and ptracers: fix boundary conditions for advections schemes
738      with larger stencil
739    o thsice adjoint: start
740    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
741      completeness
742    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
743      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
744    o ptracers adjoint:
745      * avoid extensive recomputatations
746      * fix missing re-init. of gptr (missed by TAF)
747    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
748      me to turn off the excessive output to STDOUT that this package produces
749    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
750      and add those terms in Vector-Invariant formulation.
751    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
752      if the control period (xx_hfluxperiod etc) is 0
753    o in profiles pkg, clean routines and fix details
754    o in ecco pkg, reading ssh data:
755      fix problem in case the model does not start at iter0=0
756    o fix mnc-pickup/restart for ptracers
757    o new package prifiles:
758      code to compute profile-based cost by Gael Forget
759      (modifs in ecco, ctrl, autodiff)
760    o Benign bug fix in initialization (spotted by M. Mazloff) of
761      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
762    
763    checkpoint58c_post
764    o adjoint: finish NLFS adjoint and provide reference output in
765      verification/global_ocean.90x40x15/results_ad_nlfs
766    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
767      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
768      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
769      with SEAICE_CGRID defined.
770    o move calendarDumps from "data" to "data.cal" and clean-up the code
771      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
772    o add useEXF & useCAL flags (for now, set in hard-coded way)
773    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
774      (were missing in NH mode, and wrong in quasihydrostatic mode).
775      waiting for Chris updated version of calc_gw to add those CALLs.
776    o fix bug in quasihydrostatic S/R ;
777      add a test for this option: global_ocean.90x40x15.qshyd
778    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
779      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
780    o add on/off flag useOffLine for package OFFLINE
781    o seaice:
782      - modify advection so that it works also on the C-grid
783      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
784        problem in multi-tile runs with C-grid
785      - add flags for clipping ice velocities and/or masking solver forcing
786      - fix drag (ocean on ice) formulation and a bug that caused noise in the
787        C-grid solver
788      - added a few comments to seaice_diffusion.F
789      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
790        are now exclusive)
791      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
792        required re-ordering the code a little:
793       + make DAIRN global variable (defined in SEAICE)
794       + move computation of the viscosities eta and zeta into a new separate
795         routine (because I need to recompute them in seaice_ocean_stress.F)
796    
797    checkpoint58b_post
798    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
799      update output.txt of exp. aim.5l_cs.thSI
800    o various mnc cleanups and improvements:
801      + shrink lookup tables by factor of ~4
802      + better error reporting when running out of lookup space
803      + able to handle longer path/file names (up to 500 chars)
804    o adjoint:
805      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
806      - TBD: "hidden" mom_vecinv recomp. in dynamics
807    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
808     (allow to differentiate between forcing components using new integer flags:
809      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
810     and add new flag to put Dissipation tendency out of Adams-Bashforth.
811    o ecco
812      - enable trend removal from SSH anomaly obs.
813    o adjoint
814      - a fix for PmEpR when #undef EXACT_CONSERV
815      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
816      - try to fix "hidden" recomp. in forward_step for NLFS
817        (NLFS seems broken sometimes after I checked it in)
818    o seaice:
819     - add c-grid version of the dynamic solver:
820       + three new routines that are the c-grid substitute lsr, dynsolver
821         and ostres
822       + put a few fields that were local to dynsolver into global common
823         blocks, so that I can move the computation of stresses etc into
824         seaice_lsr (saves coding but may break the adjoint).
825     - replace more hardwired parameters by runtime parameters
826     - add ice masks that mask the rhs of the implicit solvers where there
827       is no ice (commented out in seaice_dynsolver, because i am not sure
828       if this works properly), eventually this should replace the clipping
829       of ice velocities in seaice_dynsolver to +/-40cm/s.
830    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
831      include it only where its needed
832    o move balancing of fluxes before the call of external_forcing_surf
833    o seaice:
834      - correct units of turning angles (now they are really in degrees)
835      - move computation of GWATX/Y out of main routine into dynsolver
836      - initialize GWATX/Y in seaice_init
837    o Apply mask on Fresh-Water flux (needed for SSH forcing).
838      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
839    o seaice: add runtime flags for turning angles (default to zero)
840    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
841      and trend from exf forcing and ctrl control adjustments
842    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
843      (since checkpoint57x_post)
844    o change the default rotation period to 86164.s = the Earth rotation
845    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
846      and based on a reference stratification. Tested within hs94.cs-32x32x5.
847    o seaice advection: add code for choosing between the default (2nd order
848      central differences) and multiDim advection schemes provided by
849      pkg/generic_advdiff
850    o seaice:
851      - removed all references to SEAICE_GRID.h fields from
852        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
853        (cubed-sphere configuration will change a little)
854      - grid computations in seaice_init are obsolete now.
855      - cleaned up code a little so that is easier to read (hopefully).
856      - added new (better?) discretizations of default advection and diffusion
857        (turn on with SEAICEuseFluxForm)
858      - replace 1 in 3d global fields by kSurface in growth.F
859      
860    checkpoint58a_post
861    o seaice:
862      - bug fix in advect.F
863    o shelfice:
864      - separate shelfice load anomaly from pload (breaks with time
865        dependent forcing), => introduce constant field shelficeLoadAnomaly.
866        Its default is 0., but it may be computed more cleverly from (unknown)
867        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
868        done offline. A good approximation of the pressure load anomaly is
869        necessary to avoid large initial adjustment processes underneath
870        deep-reaching shelfice.
871      - small fix in ISOMIP shelfice_thermodynamics
872      - add more sophisticated thermodynamics of Hellmer (1989), this is
873        now the default
874      - give a few constants more intuitive names
875    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
876      if bulk formulae are used in long integration (especially EmPmR). Turn
877      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
878      if balancePrintMean, the imbalance that is substracted is printed to
879      STDOUT.
880    o fix bug (typo) in obcs_apply_eta.F
881    o add a new package shelfice which enables us to model the circulation
882      underneath shelf-ice with draughts of hundreds of meters.
883     - works
884     - to do: + include improved thermodynamics
885              + check whether kSurfC (from model/inc/SURFACE.h) can be used
886                instead of new field kTopC
887              + can we use topoFile, Ro_surf and existing code in ini_depth.F
888                instead of new field R_shelfIce and new code in ini_depth.F
889                and ini_mask_etc.F?
890              + adjust vertical mixing schemes?
891    o seaice pkg:
892     - add a cpp-flag to include a simple formula for a salinity dependent
893       freezing point of sea water at the surface
894     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
895       meridional stresses are now different (and hopefully correct)
896    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
897       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
898       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
899    o pkg/diagnostics: add options and parameters for regional-statistics
900       diagnostics ; define regions by reading a region-mask from a file
901       (might add other options later)
902    o pkg/bulk_force:
903     - add option and parameters to use AIM surface-flux formulae.
904     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
905       others forcing fields (defined in PARM05, parameter file "data") are loaded
906       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
907     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
908     - use the right EXCH call for uwind,vwind (to work on CS-grid).
909     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
910       and parameters (note: calcWindStress replaces .NOT.readwindstress).
911     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
912    
913    checkpoint58
914    o add "--embed-source" option to genmake2 which, when the supporting
915      tools can be compiled (as determined by genmake2) will turn on the
916      embed_files package which then embeds the entire MITgcm source code
917      (*.[fFhc] + Makefile) used for the build within the executable
918      - requested by CNH but off by default
919      - adds a paltry <9MB to the mitgcmuv executable in most cases
920      - only writes the output when useEMBEDSRC in eedata is true
921    o clean up 3-dim. relaxation codes:
922      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
923      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
924      * Thanks to Tom Haine for testing!
925    
926    checkpoint57z_post
927    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
928      affects output (@ truncation level) of exp. plume_on_slope ; updated.
929    o fix the pickup behavior for obcs in combination with ptracers
930    o fix a bug in ptracers_external_fields_load
931    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
932      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
933    o transfered surface NH pressure to eta field (if exactConserv).
934    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
935         and update lab_sea output.txt file.
936    o completing 3-dim. relaxation code: additional term
937         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
938      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
939      * At compile time, in "EXF_OPTIONS.h" set
940          #define  ALLOW_CLIMTEMP_RELAXATION
941          #define  ALLOW_CLIMSALT_RELAXATION
942      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
943          tauThetaClimRelax3Dim = 15552000.0,
944          tauSaltClimRelax3Dim  = 15552000.0,
945      * 3 cases:
946          1) Use a constant-in-time 3-dim. field
947          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
948          3) Real-time relax. to time-evolving prescribed field
949    o Adding Laplacian-type smoothness constraint on
950      initial and boundary (forcing) controls (ic, bc)
951      * enable at compile-time via
952        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
953      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
954      * Absolute scale somewhat unclear so far
955      * no area weighting was included since no other cost term does so far
956    
957    checkpoint57y_post
958    First step for a NLFS adjoint
959    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
960    o new init. routines for calc_r_star, calc_surf_dr
961    o still need to deal with ini_masks_etc
962    o testreport seemed happy
963    checkpoint57y_pre
964    
965    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
966    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
967    o add new offset feature to offline pkg (plus minor cleanup)
968    o cfc fixes for final year of integration
969    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
970      be in GCHEM_OPTIONS).
971    
972    checkpoint57x_post
973    o fix testreport Pb in multiple test experiment.
974    o cleanup our namelist syntax in verification:
975      - make it more F95 standards compliant (some work still needed)
976      - allows the vast majority of our tests to work with gfortran
977    o Non-Hydrostatic:
978     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
979     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
980    o Allow to apply AB on T,S rather than on AB(gT,gS):
981     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
982     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
983       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
984     - need a "clever" read_pickup to restart from the other AB formulation
985    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
986    o remove some unused variables (reduces number of compiler warnings)
987    o adjoint
988      * Disable useVariableViscosity for adjoint for time being
989        (there are a number of extensive recomputations)
990      * Initialize certain variables needed for adjoint
991    
992    checkpoint57w_post
993    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
994                 fix the singleCpuIO RS version of MDSWRITEFIELD
995       and add a WARNING if using globalFiles=T with multi-processors.
996    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
997      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
998    o tracer advection scheme:
999      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1000       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1001       was not very convenient).
1002      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1003       (further tests needed for the implicit DST & Flux-Limiter schemes).
1004    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1005      and sRef for convenience, handy, when you want to initialize
1006      ptracers in a large domain with a constant non-zero value. Also,
1007      untangle ptracers_init.F a little.
1008    
1009    checkpoint57v_post
1010    o change dome exp. to use variable viscosity in side-drag terms.
1011    o remove all the files from the cfc_offline test since they are now
1012      incorporated into tutorial_cfc_offline which has been producing
1013      identical results for a few days of testing
1014    o add new parameter: sideDragFactor to enable half-slip-side BC
1015      and change side-drag S/R to use viscosity from mom_calc_visc
1016      (can switch back by setting sideDragFactor=0.); affects results at
1017      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1018       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1019    o vorticity & strain are now computed without masking, to account for
1020      no-slip-side BC in variable viscosity calculation ; mask is applied
1021      anyway later on, before computing advection/coriolis terms.
1022    o modify exp4 to test new obcs support for reading from external files
1023      and for passive tracers
1024    o fix behavior of ptracers_monitor when monitor output is written to a
1025      netcdf-file; still not independent of monitor.F (writes in the same
1026      file).
1027    o change default value of tRef (put a uniform, meaningful value for ocean
1028      & atmos) and initialize sRef (was missing, as Martin mentioned).
1029    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1030      to be proportional to enstrophy dissipation length.  Thus,
1031       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1032      This is now consistent with Smagorinsky and with the manual.
1033    
1034    checkpoint57u_post
1035    o OBCS and PTRACERS: add open boundary support for passive tracers
1036      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1037        OB-values from file; this is not different from the way theta and salinity
1038        are treated
1039      - however, Orlanski-radiation conditions are not supported, and the model
1040        will stop if you use pTracers and Orlanski at the same time.
1041      - beefed up the rountine obcs_external_fields_load: now only those open
1042        boundary values are overwritten with values from files for which there
1043        are really files, otherwise the OB-fields remain untouched. This makes
1044        it possible to use different OBs at different ends of the domain (as
1045        with EXF)
1046    o reduce number of exch calls in shap_filt (s2).
1047    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1048      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1049    
1050    checkpoint57t_post
1051    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1052    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1053      same truncation, independent of the face number: affects affects several
1054      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1055    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1056      note that biharmonic viscosity + no-slip was not tested in any experiment.
1057    o fix bug in non-linear free-surf side-drag ; generate new output for
1058      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1059    o make mnc honor the writeBinaryPrec flag for most kinds of output
1060    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1061    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1062      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1063    o add brackets in multi-terms sum to get same truncation, independent of
1064      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1065      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1066    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1067      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1068      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1069      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1070      Suggested values of viscosity parameters found in mom_calc_visc.
1071      Many new viscosity diagnostics available.
1072    
1073    checkpoint57s_post
1074    o Add clearing-house for viscosity calculations, mom_calc_visc and
1075      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1076      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1077      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1078      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1079      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1080      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1081      ViscAhStrain and viscAhTension are now retired.
1082    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1083    o In response to JMC's bug report, genmake2 now ignores any soft-links
1084      that it finds in the *current* directory when searching for files.
1085      Soft-links found in any other source directories will still work as
1086      they did before.
1087    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1088      a C routine to unlimit the stack size
1089    o mnc-ify pkg/aim snapshot vars
1090    o mnc-ify pkg/land as requested by Daniel
1091    o various changes to mnc including:
1092      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1093      - output can now be grouped so that all files within a group
1094          change the ITER portion of their names in lock-step together
1095      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1096          and works with both EXCH1 and EXCH2 (but needs more testing)
1097      - writing works for all verification test cases w/ g77 on Linux
1098    
1099    checkpoint57r_post
1100    o make MNC variable initialization happen earlier
1101    o add diagnostics for (almost) each term of the momentum Eq.
1102    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1103    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1104    o remove MINIMAL_TAVE_OUTPUT option ;
1105      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1106    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1107      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1108    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1109    o add time-dependent SST, SSS control
1110    o cost terms in ecco/ modularized (new cost_generic.F)
1111    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1112    o new infrastructure for seaice model vs. obs misfits in seaice/
1113      * driver from the_main_loop.F is seaice_cost_driver.F
1114      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1115      * gradient check in Exp. 6a of natl_box_adjoint/
1116    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1117      (see README file)
1118    
1119    checkpoint57q_post
1120    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1121    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1122      - bug was reported by Jean-Michel and Ian Fenty
1123    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1124      update exp. cpl_aim+ocn output.
1125    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1126      Needed for high-res. runs with large global files
1127      to be able to limit tapelev size
1128    o Changed some tests for adjoint:
1129      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1130      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1131      * global_ocean.90x40x15/ back to default 3-level checkpointing
1132    o Modifications to enable scripted COMMON to MODULE conversion
1133      * verification/OpenAD/code/ has necessary scripts and description;
1134      * converts, compiles and runs successfully;
1135    
1136    checkpoint57p_post
1137    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1138    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1139      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1140    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1141    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1142      (was already the case for dissipation with mom_vecinv,
1143       and also the case for grad.PhiHyd when staggered-timeStep)
1144      This will allow to put dissipation out-off the AB time-stepping.
1145     Unfortunately, affects truncation error. Update output of exp. that "fails"
1146      (cg2d matching number) and leave the others for later: front_relax(10),
1147      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1148      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1149    
1150    checkpoint57o_post
1151    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1152      (2) its ready to be documented during the 20050801 DocFest
1153    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1154      for ideal_2D_oce and lab_sea on linux_ia32_g77
1155    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1156      in global1x1_tot/code_seaice_adj to access indices 32, 33
1157      (worth another tag)
1158    
1159    checkpoint57n_post
1160    o adding precip control xx_precip 32
1161    o adding swflux control xx_swflux 33
1162    o Replacing 10 forcing penalty cost routines by 1 generic.
1163    o Implementing partitioning in time-mean and variable adjustment
1164      for atmos. state.
1165    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1166    o in natl_box_adjoint:
1167      * updated exp 1 to 10
1168        (but does not have time-mean vs. variable split results yet)
1169    o updated global1x1/*_seaice_adj/
1170      to incorporate latest changes
1171    o enable useSingleCpuIO for mdsio vector routines
1172      (applies in particular to tapelev I/O)
1173    o removed inefficient K-loop in all active_file*control*.F
1174    
1175    checkpoint57m_post
1176    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1177      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1178    o pkg/exch2: filling of face-corner halo regions is optional
1179      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1180    
1181    checkpoint57l_post
1182     tag before updating tutorials (pre-release-2)
1183    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1184       for output and interpolation of input fields onto model grid)
1185    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1186       Affects results of exp. rotating_tank ; update output.txt.
1187    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1188          and taking the square quantity and/or using a fraction-weight field.
1189    o fix aim_diagnostics_init.F mate numbers.
1190    o add mnc output capability to diagnostics/diagstat and update
1191      our cvsignore files for the ACSII output generated
1192    
1193    checkpoint57k_post
1194    o lab_sea now uses diagnostics package and provides a suite of
1195      new EXF diagnostics output.
1196    
1197    checkpoint57j_post
1198    o exf
1199      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1200        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1201        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1202      * extended diagnostics output
1203        - now includes all EXF variables
1204        - hs, hl moved to common block
1205        - separate S/R for diagnostics, called after ctrl vector is added
1206        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1207        - EXFqnet contains true Qnet (i.e. includes qsw)
1208      * updated verif. lab_sea, global_with_exf
1209      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1210        to ensure that diagnostics sees a true EXFqnet
1211    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1212    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1213      several times with different frequencies.
1214    o mnc-ify the thsice package as requested by Daniel Enderton
1215      - the monitor--MNC output needs work
1216      - many attributes need to be added (most are currently blank)
1217    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1218      - many attributes need to be added (most are currently blank)
1219    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1220    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1221    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1222      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1223         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1224    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1225     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1226    
1227    checkpoint57i_post
1228    o Diagnostics package was changed: diagnostic allocation is now deactivated
1229      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1230    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1231      add 1rst Order upwind vertical Shear.
1232    o add a quick fix for A/B checkpointing in OFFLINE mode
1233    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1234      end-run around the C/Fortran linking horror in eesup/src/timers.F
1235    o added pkg/runclock: allows user to terminate run based on wall clock
1236    o added non-hydrostatic scaling parameter: nh_am2
1237    o pkg/my82: futile attempt to make results compiler-independent by adding
1238      some "_d 0", etc. no effect.
1239    o for mnc output, fill the 'T' coordinate var with myTime and create a
1240      separate 'iter' variable for iteration count
1241    o pkg/diagnostics:
1242      add new capability: output of Global/Regional & per-level statistics ;
1243      tested against monitor output (including land & thSIce) on various exp.
1244    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1245    
1246    checkpoint57h_done
1247      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1248      data.diagnostics, data.gchem, data.ptracers) is done.
1249    
1250    o pkg/diagnostics: prepare for Global/Regional statistics.
1251      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1252    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1253      and rename it: DIFFERENT_MULTIPLE
1254    
1255    checkpoint57h_post
1256    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1257    o pkg/diagnostics: change output frequency, now in seconds (instead
1258      of Nb of iterations). This requires to change data.diagnostics.
1259    checkpoint57h_pre
1260    
1261    o in mnc, let the user create the output dir if both mnc_outdir_date
1262      and mnc_outdir_num are false
1263    o add fflags() to pkg/diagnostics which allows one to specify, on a
1264      per-file basis, the file precision [default behavior is unchanged]
1265    o added diagnostics to pkg/kpp, including computation of mixed layer
1266      depth based on a temperature/density criterion
1267    o updated verification/natl_box to test the new pkg/kpp diagnostics
1268    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1269    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1270    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1271      not mnc -- this mistake was found by JMC and is now corrected
1272    
1273    checkpoint57g_post
1274    o add Adams-Bashforth 3rd Order time stepping:
1275      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1276      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1277    checkpoint57g_pre
1278    
1279    o make lambda[Theta,Salt]ClimRelax spatially varying
1280      (default remains spatially uniform constant based on tau)
1281    o added new control variables
1282      * init. uVel, vVel, etanN
1283      * lambda[Theta,Salt]ClimRelax
1284    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1285      (suggested by G. Forget)
1286    
1287    checkpoint57f_post
1288    o add parameter "baseTime" = model base time = time at iteration zero
1289      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1290      account for baseTime shift
1291    o move Coriolis arrays from PARAMS.h to GRID.h
1292    checkpoint57f_pre
1293    
1294    o mnc-ifying the seaice package
1295    o introduced an alternative length scale calculation for use in the limiting
1296      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1297    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1298    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1299      as well as grad(vort3).  Made it compatible with both approximate form
1300      for the cubed sphere and full form of these gradients.  Added flag
1301      useFullLeith to select between approximate and full form.  
1302    o add "d0" in getcon.F to reduce differences between compilers/platforms
1303      update output.txt of exp. fizhi-gridalt-hs
1304    o change port_rand funtion to allow to set the seed.
1305    o fix obscure MNC bug involving conversion between reals and integers
1306      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1307        new version is now more standards-compliant
1308    o adjoint-related modifications
1309      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1310      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1311      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1312    
1313    checkpoint57e_post
1314    o Adding eddy stress controls a la Ferreira et al.
1315    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1316    
1317    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1318      update output.txt of exp. fizhi-gridalt-hs
1319    o add more "Z" dimensions and associated coordinate vars to MNC
1320    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1321    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1322      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1323      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1324      months and years.  Requires pkg/cal.
1325    o diagnostics: add pickup functionality
1326      - off by default for backwards compatibility
1327      - current version only uses MDSIO -- MNC will be added
1328    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1329    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1330    
1331    checkpoint57d_post
1332    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1333    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1334      output from the diagnostics package
1335    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1336    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1337      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1338    o add coordinate variables to the MNC output from the diagnostics package
1339    o change MNC-flags default value: true when useMNC=TRUE
1340    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1341      the ability (off by default) to read the grid information using MNC
1342    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1343    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1344    o do snap-shot diagnostics at the middle of the time-interval (instead of
1345      at the end).
1346    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1347      new test for AIM with thSIce + slab-ocean
1348    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1349    o move state variable diagnostics to the beginning of the time step ;
1350      (note: still needs some work specially for snap-shot diagnostics)
1351      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1352    
1353    checkpoint57c_post
1354    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1355    o generate new output.txt files on faulks with g77 & the new -ieee option
1356    checkpoint57c_pre
1357    
1358    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1359      update output.txt of exp. global_ocean.90x40x15
1360    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1361      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1362    o add saltFlux(+File) forcing capability with periodicExternalForcing
1363    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1364    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1365    o improvements for the MNC output from DIAGNOSTICS:
1366      - correct handling of the unlimitied dimension
1367      - all dims now have associated coordinate variables
1368      - variables located at U, V, and Corner ("Z") points are now written
1369        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1370        *all* data points are output
1371    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1372    o added pkg/seaice/seaice_monitor.F
1373    o mdsio_readfield.F can now read files visible only to master MPI process.
1374    o pkg/seaice: some test code for ice-modified ocean stress
1375    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1376      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1377      spurious negative numbers for precipitation and humidity.  Will cause
1378      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1379    o pkg/ctrl/
1380      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1381        May be enabled via doPackDiag
1382      *  introduce z-scaling of
1383         + gradient (doZscalePack) and
1384         + control (doZscaleUnpack)
1385    o pkg/mdsio/
1386      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1387      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1388    
1389    checkpoint57b_post
1390    o simplify options in diagnostics_fill arguments (remove weird combinations)
1391    o fix MNC coordinate variables so that they now contain per-face index
1392      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1393      general, EXCH2 grids are only aligned to a "local" coordinate system
1394    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1395    o Implement instantaneous output within pkg diagnostics:
1396      setting a negative frequency in data.diagnostics produces
1397     "snap-shot" output (as opposed to time-average if freq > 0)
1398    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1399      NOTE: change ptracer diagnostics name: use 2 characters to work with
1400            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1401    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1402      becomes the coordinate variable for the 'T' dimension
1403    o add CF-style coordinate variables to MNC
1404      - just a first cut:  numbers are meaningless on the cubesphere and
1405        missing along the T axis but otherwise it works!
1406    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1407    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1408    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1409      this is based directly on what the model compute, so that the content of
1410      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1411    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1412    o clean up build options files for SunOS, in particular
1413      - remove -traditional from xmakedepend
1414      - change -xarch=v9 to -xarch=native for f77
1415      - restore use of make (not gmake)
1416      - add CC=gcc if using g77
1417    o changes per discussion of AM, JMC, & EH3 today:
1418      - move redundant "grid" variables out of "state" -- in preparation of
1419        creating proper CF-style coordinate variables and in recognition
1420        that any/all grid variables can be easily copied (eg. w/NCO) from
1421        the grid files into any of the other NetCDF files
1422      - *always* output grid variables with MDSIO (this will eventually be
1423        changed)
1424      - output MNC grid file if useMNC is true
1425    o every instance of _END_MASTER() has been found and replaced with
1426      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1427      preprocessors
1428    o re-arrange diagnostics pkg initialisation:
1429     - allow each package to extend the available diagnostics list
1430     - add some checking and fix small problems (multi-threaded, ...)
1431     - new S/R diagnostics_fill (replace fill_diagnostics):
1432       look through the short list of active diag. (instead of the long list)
1433       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1434    
1435    checkpoint57a_post
1436    o this set of changes restores TAMC compatibility
1437      tested for global_ocean.90x40x15 adjoint on trough
1438      (what a pain)
1439    
1440    checkpoint57a_pre
1441    o some modifs in tools/build_options for sunos
1442    o call ctrl_pack for ctrl at end for optimcycle=0
1443    
1444    checkpoint57
1445    o add horizontal bi-harmonic viscosity for vertical velocity
1446      - new parameter viscA4W (defaults to viscA4)
1447      - affects only non-hydrostatic code
1448      - to be done: no-slip lateral boundary conditions
1449    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1450    o implement Implicit Vertical advection for pTracers
1451    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1452      (implemented also for implicit vertical diffusion & advection)
1453    o OBCS: extend application of tracer open boundary conditions
1454      to a strip beyond the boundary of width Olx/Oly
1455    o add call monitor to TAF set of required calls (flow directives)
1456      and include in natl_box_adjoint
1457    o untangle a few ifdefs related to cost, ctrl, autodiff
1458      untangel a few ALLOW_ECCO_OPTIMIZATION
1459    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1460      (theta2, salt2 in ecco_cost_weights)
1461    
1462    checkpoint56c_post
1463    o OBCS as control variables
1464      - update ctrl_ad_diff.list, obcs_ad_diff.list
1465      - remove balance of obcs controls from default
1466      - fix index bug nobcs in ctrl_init
1467      - fix dummy fields filen in ctrl_pack
1468      - add dummy weights for obcs
1469    o lsopt: comment out fort.94 output
1470    o optim:
1471      - remove unnecessary header files
1472      - adjusted namelists
1473      - add xerbla.F to Makefile
1474    o exf:
1475      - multiple modifications of exf_check_range
1476      - unit change in exf_init_runoff from [m/year] to [m/s]
1477    o mdsio:
1478      - i/o-vector change debugLevel from debLevA to debLevB
1479    
1480    checkpoint56b_post
1481    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1482      is called from DO_THE_MODEL_IO
1483      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1484      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1485      - clean up PTRACERS_WRITE_TIMEAVE a little
1486    o add another verification experiment that tests both the cfc-pkg and
1487      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1488      reactive tendencies treated inline with regular timestepping
1489    o testreport previously did a lousy job of comparing small numbers, so
1490      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1491      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1492      testreport.
1493    o ptracers_monitor: bug fix for MPI
1494    
1495    checkpoint56a_post
1496    o GCHEM: finish reorganizating the package
1497      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1498        (introduces another 3D-array for each passive tracer, but only if
1499        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1500        gchemTendency is not needed because the timestep is done separately)
1501      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1502      - GCHEM is now---more or less cleanly---separate from PTRACERS
1503      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1504        so clear to me how that should be done in a general way.
1505    o CFC: improve formatting of output in CFC_ATMOS
1506    o PTRACERS:
1507      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1508        that ALL experiments with ptracers enable can be checked. This makes
1509        GCHEM_MONITOR obsolete.
1510      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1511        monitorFreq
1512      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1513    o add PTRACERS (PTR0[1-5]) to testreport output
1514    o exf_check_range:
1515      * default changed to .TRUE.
1516      * will check values for niter0 if debLevA, every timestep if debLevB
1517      * STOP in exf_check_range if 'out of range'
1518      * range chosen generous to allow for potential extema
1519      TBD: a version with stricter range
1520           permitted range would be runtime parameters
1521  o GMredi:  o GMredi:
1522    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1523    - 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 1526  o GCHEM:
1526    - 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
1527      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1528    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1529      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1530        this flag is now only visible within GCHEM-pkg routines.
1531      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1532        be replaced by a 3D array that is computed before thermodynamics; for
1533        this, the tracer ID iTracer had to be included into the parameter list
1534        of ptracers_forcing
1535      - set up forward_step to call gchem_forcing, that will replace
1536        gchem_forcing_int in ptracers_forcing
1537      - cleaning up
1538  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
1539    
1540  checkpoint56  checkpoint56

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