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revision 1.268 by jmc, Fri Mar 12 20:57:21 2004 UTC revision 1.856 by dimitri, Mon Aug 6 19:36:53 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 exch2 adjoint
8      First set of changes:
9      - add exch2 hand-written adjoint templates
10      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
11        This will require cleanup in pkg/autodiff/*.F
12        (changed routines currently kept separate in verif. code/)
13      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
14        that used to hide exch2 or cubed-sphere specific code
15        (commented via 'cph-exch2')
16    o pkg/seaice
17      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
18    
19    checkpoint59e
20    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
21      for B-grid vector (not yet tested) and C-grid vector (<- only used
22      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
23    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
24      (#ifdef ALLOW_SALT_PLUME)
25    o gather_2d/scatter_2d: removed halo regions
26    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
27      scheme and the corresponding test case (under front_relax dir). For now,
28      only available with Skew-flux form and not yet tested in realistic set-up.
29      adjoint: store directives updated, but gradient checks deteriorated,
30      so maybe GM/Redi adjoint is now broken.
31    o seaice adjoint
32      * add AREA, HEFF, HSNOW as control variable
33        (should not change lab_sea results)
34      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
35    o pkg/seaice:
36      * added computation of saltFlux in seaice_growth;
37        For time being, sea ice salinity is assumed constant
38        contribution of snow flooding to freshening of sea ice is neglected.
39        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
40        defaults to 0.0 in order to maintain backward compatibility.
41        Typical values for SEAICE_salinity are 4 to 10 g/kg.
42      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
43      * added SEAICE_availHeatFrac, which specifies fraction of surface level
44        heat content used to melt or grow ice
45      * commented out cap of HICE: it helps keep ice thinner
46      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
47      * applied OBCS T/S mask to HEFFM sea ice mask
48    
49    checkpoint59d
50    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
51     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
52     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
53    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
54     and change default value of parameter "GM_Small_Number";
55     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
56       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
57       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
58    o pkg/ecco: cost function when applying pkg/smooth to controls
59    o pkg/ctrl: add forcingPrecond run time parameter
60    o pkg/seaice:
61     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
62     - fix bug in metric terms of u-equation in LSR solver (implicit part),
63       changes verification/lab_sea
64     - rearrange implicit part of u-equation in LSR solver to make it easier to
65       read, understand, and debug. This causes changes at the truncation level.
66     - fix (serious) bug in the boundary conditions (sign error in the implicit
67       part) of the LSR solver. Changes all LSR results.
68     - fixed problem with HSNOW initialization to avoid thick snow when AREA
69       is initilized with small values - does not change lab_sea results.
70     - added HsnowFile initialization capability
71    o pkg/smooth: addition to model/src and pkg/ctrl so allow
72     initialization of pkg/smooth and application to control vector
73    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
74    o dependencies: pkg/profiles requires pkg/cal
75    o pkg/profiles:
76     - added option ALLOW_PROFILES_GENERICGRID
77         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
78         that interpolation information (grid points and coefficients) is provided
79         within the netcdf input files.
80         -> sample matlab scripts can be found in MITgcm_contrib/gael
81         that allow you to prepare netcdf input files.
82     - also modified: cleaner include statements, cleaner error print statements,
83       cleaner stops when error, and more tests of the netcdf input files consistency.
84    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
85    o pkg/seaice:
86     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
87       requires a new routine: seaice_diagnostics_fill.F
88     - make sure that seaice does not move if not forced (pressure replacement
89       method, Hibler and Ip, 1995), changes results
90     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
91     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
92       It is turned off by default (=-1.), because it changes the results.
93     - make it possible to read AREA from a file, too.
94    
95    checkpoint59c
96    o add S/R and diagnostics for oceanic mixed-layer depth
97    o move GMRedi call after all vertical mixing schemes (including KPP)
98    o pkg/thsice:
99     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
100      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
101    o pkg/obcs:
102     - bug fix for balance code
103    o pkg/seaice:
104      - allow values of SEAICE_elasticParm > 1
105      - add new parameter SEAICE_evpTauRelax as an alternative
106        to SEAICE_elasticParm
107      - make lsr boundary conditions free slip (by default), changes result
108      - add code for no slip boundary conditions for lsr
109      - set minimum of zeta to zero (and not 4e8) (changes results)
110      - add a cap on AREA after advecting AREA if seaice_growth is not called
111    o change calculation of Visbeck K:
112      - no longer depend on tapering scheme; instead, compute slope (limited
113        by GM_maxSlope). this is equivalent to what was comuted before with
114        clipping or linear tappering.
115      - fix vertical averaging (wrong by 1/2 level)
116      - leave the old version (but will not be maintained) within
117        #ifdef OLD_VISBECK_CALC / #endif
118      - update output of exp. ideal_2D_oce
119    o change error catch in calc_r_star to improve vectorization
120    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
121      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
122    o adjoint:
123      Re-organized adjoint checkpointing according to Matt Mazloff
124      (but with modifs/completions/cleanups)
125      Storing is now bundled into large arrays to optimized I/O
126      (and second step in cleanup of the_main_loop)
127    
128    checkpoint59b
129    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
130      - export/import (between ocean & coupler) fields needed for ocean DIC.
131    o pkg/seaice:
132      - get rid of three more exchanges seaice_calc_viscosities (required
133        different loop boundaries in seaice_lsr and seaice_ocean_stress)
134      - bug fix in seaice_ocean_stress (update of lab_sea required)
135      - reduce loop boundaries to necessary minimum also in seaice_evp
136      - go back to the old way of computing deltaC/Z as the adjoint likes that
137        better
138    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
139      passive tracer to an Age Tracer) + update output.txt
140    o pkg/exf:
141      - implement A-grid / C-grid selection for wind-stress input files.
142      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
143      for now, in exf_bulk_largeyeager04.F only :
144      - change implementation for case where windspeed + 2. components wind-stress
145        are read-in. AND use rhoConstFresh to convert evap.
146    o pkg/seaice:
147      - use correct EXCH_UV for wind-forcing (on A-grid).
148      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
149        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
150    o pkg/exf:
151      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
152      EXF_INTERPOLATION:
153      - merge global_with_exf/code version of exf_interp_read.F
154        to the main code ;
155      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
156        reading the file ; Important: This options needs to be defined to recover
157        previous code.
158        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
159      - no longer loose real*8 precision along the way when using exf_iprec=64.
160    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
161      - change discretisation of evp-solver in order to avoid another exchange
162        (changes lab_sea) and clean up a little
163      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
164        help the adjoint (this also changes the results slightly)
165      - add a few "_d 0" where they had been missing in seaice_evp.F
166      - cleaning up: remove unused seaice_calc_rhs.F
167    o pkg/exf: some cleaning-up:
168      - change various "constants" into runtime parameters
169      - cleaned-up Large&Yeager04 routine which should eventually
170        replace exf_bulkformulae.F (changed names of S/R and CPP)
171        and merged various ALLOW_ATM_WIND options
172     only used with thsice pkg (in thsice_get_exf.F):
173      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
174        which are used when useStabilityFct_overIce=TRUE (= the default)
175      - change default values of ice & snow emissivity and scale downward LW
176        by ice & snow emissivity.
177    o pkg/thsice:
178     fix few little problems, in thsice_calc_thickn.F:
179      - growth vertically (and not laterally) if iceFrac == iceMaskMax
180      - melt only laterally if hIce < hThinIce (as the comments say)
181      and in thsice_extend.F:
182      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
183      - start to form ice as soon as the minimum ice-volume is reachable.
184     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
185      and cpl_aim+ocn
186    o pkg/kpp
187     - move computation of surface related input fields to KPP into a new
188       subroutine kpp_forcing_surf.F
189     - remove wrong (within bi,bj loops) EXCH calls.
190     - little cleaning (add argument myThid in last position, cvs header ...)
191     - for now, fix conservation problem by exchanging KPPviscAz (may not
192       be the best fix)
193    o pkg/seaice
194     - check for inconsistent evp parameter/cpp-flag combination
195     - remove leftover errIO flat for obsolete name list error handling
196    o OpenAD
197     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
198    
199    checkpoint59a
200    o pkg/seaice: some parameter clarifications and a little bit of clean up
201    o pkg/thsice: rename run-time parameters:
202       himin       -> hIceMin
203       himin0      -> hThinIce
204       hihig       -> hThickIce
205       i0          -> i0swFrac
206       transCoef   -> bMeltCoef
207       frac_energy -> fracMelting
208      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
209       with default values (for now) that do not change the results.
210      remove old version of thsice vars advection in pkg/seaice.
211    o in FFIELDS.h:
212      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
213      - make pLoad & sIceLoad always available (but still only used if
214         ATMOSPHERIC_LOADING is #define).
215    o pkg/kpp: replaced _KPP_RL with _RL
216    o bug fixes for vertical diffusivity computations when both KPP and
217        3D diffusivity arrays are used.
218    o pkg/seaice: fix bug in evp solver, while doing that
219      - change (improve?) discretization of stress computations for both
220        cgrid-lsr and evp solver
221      - add a new routine to compute strain rates
222      - the above changes lab_sea results
223      - add no slip conditions for evp solver (off by default), lsr-version
224        may follow
225      - fix exchange for shear at Z-points (does not change lab_sea)
226      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
227        (to force the user to pick a time step since there is not "safe" way
228        of choosing it)
229      - add principal stress diagnostics
230      - rearrange fields for evp a little to avoid having to call a: too many
231        exchanges and b: exchanges for stress trensor components which we do
232        not have.
233      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
234        of evp, complete rewrite for lsr case (latter is does not yet work
235        in all cases)
236    o pkg/kpp: add code to have mixing in shelf ice caverns
237      - add myThid to all kpp routines (long overdue)
238    
239    checkpoint59
240    o pkg/exf:
241      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
242        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
243      - move exf header files from lower_case.h to UPPER_CASE.h ;
244        add missing cvs Header & Name
245      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
246      - add namelist param. selectStressGridPosition, exf_monFreq
247      - retire many _CLIM routines, and remove data.exf_clim
248        + params moved to data.exf
249        + climsst, climsss now handled by exf_set_gen, i.e.
250          climss?period=0 refers to constant field,
251          climss?period=-12 to monthly forcing
252      - split up namelists in data.exf
253    o pkg/seaice:
254      - remove seaice_exch and seaice_exch_uv
255      - remove superfluous exchange of theta
256      - add myThid to seaice_budget_ocean/ice
257      - add new interface for atmospheric wind forcing (C-grid only)
258        + new routine
259        + two new field (taux, tauy for stress over ice)
260        + removed one global field (DAIRN) for C-grid case only
261    o pkg/thsise
262      - 2nd set of modifs for thsice adjoint in conjunction with exf
263    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
264    
265    checkpoint58y_post
266    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
267      vertical diffusivity, similar to that in MOM4; turned on using
268      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
269      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
270    o Added capability for 3D specification of background vertical diffusion
271      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
272      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
273      "data" file that contains the 3D vertical diffusivity coefficients.
274    o ice dynamics (pkg/seaice) with thsice thermodynamics:
275      - add code within pkg thsice to advect & diffuse sea-ice fields
276      similar to (and will replace) what has been added in  seaice_advdiff.F,
277      but: - conserving Mass, Heat & Salt.
278           - better when using non-linear advection scheme (not yet fully tested)
279           - can also be used in atmospheric set-up (for now, only the diffusion).
280    
281    checkpoint58x_post
282    o IO option for global-file compact format:
283      - add options when generating topology (utils/exch2/matlab-topology-generator)
284      - add I/O capability (pkg/mdsio).
285      - adapt utils/matlab/rdmds.m to read this format.
286      for now long-line format not yet supported by pkg/mdsio (& exch2).
287    o shelfice: add a few diagnostics
288    
289    checkpoint58w_post
290    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
291      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
292      (and replace horiVertRatio in NH code).
293      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
294                         and tutorial_plume_on_slope (sensitive to truncation)
295    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
296      directly to drive seaice model (C-grid only)
297    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
298     - reintroduce computation of wind from stress,
299     - compute tau (in exf_bulkformulae.F) from windstress averaged to
300       mass points to avoid tau = 0
301     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
302    o rdmnc.m: make it work with "global" files created with gluemnc
303    o rdmnc.m : some improvements in dealing with singleton dimension
304      (tested on all testreport mnc output files).
305    o genmake2: disable pkg/profiles if netcdf test fails.
306    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
307    o move call to cal_readparms up to make calendar parameters/variable available
308      to all packages
309    
310    checkpoint58v_post
311    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
312      useDynP_inEos_Zc tested.
313    o pkg/exf: changes to properly interpolate/mask/scale initial fields
314    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
315      and portions thereof.  See read_cs.txt for description and examples.
316    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
317      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
318      following the great-circle arc between those 2 points.
319    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
320      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
321    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
322     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
323     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
324     - still needs work (not working with some options ; efficiency to improve)
325       and serious testing.
326     - use this scheme for temperature & salinity in 2 advection test exp.:
327       advect_xy & advect_xz, respectively.
328    
329    checkpoint58u_post
330    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
331    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
332    o testreport: add option "-skipdir" to skip some test.
333    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
334      momentum calculation.
335    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
336    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
337      remove checkpoint.F and the_correction_step.F (no longer used);
338      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
339    o add option (linFSConserveTr) to correct for tracer source/sink due to
340      Linear Free surface
341    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
342    o pkg/thsice: fix reading mnc-pickups
343    
344    checkpoint58t_post
345    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
346    o pkg/mdsio:
347     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
348       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
349       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
350     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
351     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
352       either MDS_READ_FIELD or MDS_WRITE_FIELD )
353     - new S/R (to replace MDSWRITEMETA), which allows to write more
354       informations (variable names, time ...) to meta files.
355     - modify rdmds.m to give back the meta file content.
356    o pkg/diagnostics: change vertical interpolation to be safer, and more
357       flexible (define p-levels to interpolate to in data.diagnostics);
358      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
359       diagnostic pointer.
360    o pkg/seaice: more cleaning up of seaice_growth, added many comments
361    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
362    o fix multi-category seaice:
363     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
364       SEAICE_MULTICATEGORY
365     - fix short wave heat flux
366    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
367       and allow to use EVP solver. Change forward lab_sea: test both EVP
368       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
369    o Initial check-in of lab_sea adjoint
370      (very similar to natl_box_adjoint/code_seaice)
371      * used C-grid and EVP solver
372      * used KPP, GM/Redi
373      * uses inAdExact=.TRUE.
374      * gradient checks fail for both ADM and TLM
375        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
376        f.d. gradients actually seem more problematic than ADM, TLM gradients;
377        issue is related to forward mismatch between g77 an ifort
378    o pkg/seaice: overhaul of thermodynamics
379     - growth.F and groatb.F are replaced by new routine seaice_growth.F
380     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
381     - move a few global fields out of SEAICE.h into seaice_growth.F and
382       make them 2D (FICE/QNETO/ ...)
383     - remove FO (it is the same as QNETO)
384     - introduce a few local fields to avoid modifying external fields such
385       as atemp, etc.
386    
387    checkpoint58s_post
388    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
389      changed exf_set_gen.F so that
390        genperiod=0 means input file is one time-constant field and
391        genperiod=-12 means input file contains 12 monthly means
392    o CG2D: use pre-computed solver main-diagonal (stored in common block);
393      this affects truncation error ; generate new output file for exp. which
394      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
395        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
396        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
397        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
398        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
399        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
400    o start implementation of deep-atmosphere and anelastic formulation
401    o verification: remove 2nd copy of input files and use script "prepare_run"
402      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
403    o mom_common/vecinv/fluxform: fix a few initialisation isssues
404    o profiles: fix for multithreaded case
405    
406    o diagnostics: rename few diags:
407      s/'PRESSURE'/'RCENTER '/g
408      s/'TICE    '/'oceFreez'/g
409      s/'TAUX    '/'oceTAUX '/g
410      s/'TAUY    '/'oceTAUY '/g
411      s/'SWFLUX  '/'oceQsw  '/g
412      s/DIFx/DFxE/g
413      s/DIFy/DFyE/g
414      and add few ocean-forcing diagnostics:
415      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
416    o modifications to pkg/seaice/growth.F and budget.F, which change results of
417      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
418      as actual snow thickness.  It now refers everywhere to effective snow
419      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
420    
421    checkpoint58r_post
422    o modifications to pkg/seaice/growth.F, which change results of
423      lab_sea experiment: fixes pertain to melting snow over open water, to
424      masking EVAP under sea ice, and to using the correct AREA variable for
425      computations of EVAP, PRECIP, HSNOW, and GHEFF
426    o add ability to read bathy, salt, and theta using MNC (off by def)
427    o add flooding algorithm and advection of HSNOW for pkg/seaice;
428      both are turned off by default and do no change any results
429    o seaice advection with pkg/thsice: a step toward the use of non-linear
430      advection scheme, but #ifdef or commented out for now (requires more EXCH).
431    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
432      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
433      in natl_box (affects results @ truncation level: update output.txt)
434    o multi-threading and IO:
435      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
436      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
437        (needed to work with SingleCpuIO): tested in all verif. exp.
438    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
439      affects the results (but none of the verification test uses this scheme).
440    o Adding some pkg/diagnostics capability to pkg/seaice
441      (will certainly be subject to changes)
442    o ctrl: adding new control variables:
443      lwflux, lwdown, evap, snowprecip, apressure, runoff
444    
445    checkpoint58q_post
446    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
447      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
448      high_res_cube configuration by 4% on Columbia.
449    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
450      add (in global_with_exf/code) a version of EXF_INTERP_READ without
451      dynamical allocation (seems to work in multi-threaded).
452    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
453      single CPU io) so that TAF does not have to see EESUPPORT.h
454    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
455    
456    checkpoint58p_post
457    o obcs: stop if obcs is used with useCDscheme = .true.
458    o shelfice:
459     - fix a sign error so that no slip at shelfice interface works
460     - remove stop for combination non-hydrostatic code and shelfice. That does
461       not mean, that the results are correct, but at least they are numerically
462       stable
463    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
464    o added adjoint exch routined for all exch*3d* routines
465      and updated flow directives
466    
467    checkpoint58o_post
468    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
469      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
470    o change controling S/R for writing pickup file (new S/R do_write_pickup)
471      and clean-up reading/writing of pickup files.
472    o fix local version of read/write pickup (NH part) in rotating_tank/code
473    o simplify EXCH interface:
474     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
475     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
476    o added the regrid package
477    o shelfice:
478     - add a simple boundary layer scheme to reduce noise
479     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
480    
481    checkpoint58n_post
482    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
483       local variable (not in common block).
484    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
485      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
486      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
487        to work with SingleCpuIO.
488    o add "_d 0" to real constant of pkg/cfc subroutines ;
489       update exp. cfc_exemple & tutorial_cfc_offline output files.
490    o multi-threading and IO:
491      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
492        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
493      - barrier before and after reading.
494      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
495      - avoid using MDS_WRITELOCAL for LAND pkg output.
496      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
497        common-block variables ; Allows multi-threading with master-thread IO.
498    o change default MAX_NO_THREADS from 32 to 4 ;
499      and stop cleanly when MAX_NO_THREADS is too small.
500    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
501    
502    checkpoint58m_post
503    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
504       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
505    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
506       keep global_ocean.90x40x15 (for AD testing) with former secondary test
507       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
508    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
509        add MITgcm_tutorials (= code + all the tutorials)
510    o ecco, option to compute cost for total ssh (mean+anom)
511    o consistent with addition of ptracer and ssh in pkg/profiles
512    o profiles: adding ptracer and ssh
513    o testreport: change multi-test output-file name
514      (from output.txt.{name} to output.{name}.txt)
515    o profiles: now ok for mutli-tiles case
516    o seaice: add 4 parameters for different advection schemes for area,
517      (effective) seaice thickness, enthalphy, and snow height. Their default
518      is the standard parameter SEAICEadvScheme
519    o calc_gw:
520     - add cosFacU in zonal viscous flux (harmonic.visc.).
521     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
522       of tutorial_plume_on_slope.
523    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
524    o calc_gw: true flux-form, account for horizontal grid spacing.
525      update rotating_tank results, but not plume_on_slope (affected at
526      truncation level, 11 digits).
527    
528    checkpoint58l_post
529    o calc_gw:
530     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
531     - remove side-drag for now (need to fix it); update plume_on_slope results.
532     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
533    o commit code to make SST/SSS weights spatially variable
534      (based on either variable in-situ or variable initial T/S weights)
535    o pkg/ecco:
536      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
537        now based on horizontally varying weights wthetaLev, wsaltLev
538      * cost_averagesflags now returns year indices in addition to day, month
539      * sflux balance is performed on annual basis
540        (sflxumm, sfluxmm2, bal_sfluxmm)
541      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
542        including separate counting and multipliers
543    o pkg/rbcs
544      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
545    
546    checkpoint58k_post
547    o testreport:
548     - always build in dir. "build" (if not there, mkdir build instead of building
549       & running in input)
550     - run in dir run (if it exists), in build otherwise.
551     - call prepare_run (if input/prepare_run exists)
552     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
553    o pkg/exf modifications to interpolation and rotation routines for more
554       reasonable treatment of North Pole singularity: for tracers North Pole
555       value is set to northernmost zonal-mean value, for zonal velocity it is
556       set to zero, and for meridional velocity it is set to northernmost value.
557    o pkg/exf/exf_check_range.F
558     - add tile index to diagnostics and move stop statement to the very
559       end of the routine.
560    o pkg/diagnostics: (diagnostics_main_init.F)
561      define title of isomorphic variables according to the current config.
562    o pkg/thsice with pkg/seaice dynamics:
563    - fix domain of computation (interior only, required for exf) and do exchanges
564    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
565    o towards a standard way of dealing with multi-threading in MONITOR
566      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
567    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
568       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
569    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
570    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
571    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
572       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
573    o tracer advection:
574     - clean-up and simplify calc_common_factors.F
575     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
576       advection subroutine (but still not used within DST advection S/R)
577    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
578    
579    checkpoint58j_post
580    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
581      from file (collects calls previously in FORWARD_STEP)
582    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
583    o adjoint store dir. adjusted accordingly
584    o genmake2
585      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
586    
587    checkpoint58i_post
588    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
589      on wind stress (SEAICEstressFactor defaults to 1.)
590    o Total number of Timers is finite (<=40): comment out 2 non-essential one
591      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
592    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
593      on CS-grid: no longer loosing mass.
594    o exf & curvilinear-grid: no longer modify longitude xC & xG.
595    o pkg/ggl90: fix sloppy output and fix a bug
596    o pkg/seaice: added SEAICEuseEVPpickup parameter
597      - Set to false in order to start EVP solver with
598        non-EVP pickup files when using SEAICEuseEVP
599      - fix sign error in diffusion in seaice_calc_rhs
600    
601    checkpoint58h_post
602    * Modifications for bottom topography control
603      o replace hFacC by _hFacC at various places
604      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
605      o add non-self-adjoint cg2d_nsa
606      o update autodiff support routines
607      o re-initialise hfac after ctrl_depth_ini
608      o works for 5x5 box, doesnt work for global_ocean.90x40x15
609    * Adding verification for 5x5 box (4-layer) bottom topography control
610    
611    checkpoint58g_post
612    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
613       used for mean seasonal cycle, mean diurnal cycle); add an example
614       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
615    o pkg/ggl90:
616      - add parameter (minimum surface kinetic energy)
617      - fix bug (avoiding division by zero)
618    o couple pkg/thsice to pkg/seaice:
619      - modify advection in seaice to accomodate new scalar fields to be advected
620      - only muliDimAdection scheme work with seaice/thsice
621      - mapping of thsice-variables to seaice-variables, back and forth
622      - does not break the verification experiments, but does not give the
623        desired results either
624    o pkg/seaice
625      - make (default) second order advection a bit less confusing?
626    
627    checkpoint58f_post
628    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
629      to pkg/seaice):
630      - new routines thsice_map_exf and thsice_get_exf provide the interface
631      - add an additional formal parameter to thsice_solve4temp
632    o pkg/exf:
633      - add new fields wspeed, snowprecip (to be able to couple to thsice)
634      - correct Stefan-Boltzmann constant
635      - new parameter for longwave surface emittance
636      - separate some stuff from exf_bulkformulae into new routines  
637        exf_radiation, exf_wind
638      - add new parameters and constants: longwave emissivity for ocean, ice
639        and snow, evaporation parameters over ice
640      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
641        either wind from stress or stress from wind
642    o pkg/thSIce:
643    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
644    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
645       and THSICE_CALC_THICKN
646    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
647    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
648      to make debugging easier.
649    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
650    o pkg/bulk_force:
651      - clean-up comments and parameters ;
652      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
653    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
654      generate new output for test-experiment: aim.5l_cs.thSI
655    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
656      testreport accordingly
657    
658    checkpoint58e_post
659    o SEAICE_CGRID adjoint done
660    o R_STAR adjoint implemented.
661      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
662      * need to sort out init. of h0facc, etc.
663    o Make pkg/profile fully independent of ecco,cost, etc. stuff
664      to be able to use it in pure forward.
665    
666    checkpoint58d_post
667    o upgrade simple test-experiment to tutorial example:
668     step.1: duplicate the experiment and (step.2) will remove the old copy.
669      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
670      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
671      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
672      tutorial_global_oce_biogeo    <- copy of dic_example
673      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
674      tutorial_plume_on_slope       <- copy of plume_on_slope
675      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
676      tutorial_global_oce_optim     <- empty for now (David ?)
677      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
678     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
679    o correct a sign problem in cost_scat.F
680    o obcs and ptracers: fix boundary conditions for advections schemes
681      with larger stencil
682    o thsice adjoint: start
683    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
684      completeness
685    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
686      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
687    o ptracers adjoint:
688      * avoid extensive recomputatations
689      * fix missing re-init. of gptr (missed by TAF)
690    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
691      me to turn off the excessive output to STDOUT that this package produces
692    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
693      and add those terms in Vector-Invariant formulation.
694    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
695      if the control period (xx_hfluxperiod etc) is 0
696    o in profiles pkg, clean routines and fix details
697    o in ecco pkg, reading ssh data:
698      fix problem in case the model does not start at iter0=0
699    o fix mnc-pickup/restart for ptracers
700    o new package prifiles:
701      code to compute profile-based cost by Gael Forget
702      (modifs in ecco, ctrl, autodiff)
703    o Benign bug fix in initialization (spotted by M. Mazloff) of
704      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
705    
706    checkpoint58c_post
707    o adjoint: finish NLFS adjoint and provide reference output in
708      verification/global_ocean.90x40x15/results_ad_nlfs
709    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
710      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
711      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
712      with SEAICE_CGRID defined.
713    o move calendarDumps from "data" to "data.cal" and clean-up the code
714      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
715    o add useEXF & useCAL flags (for now, set in hard-coded way)
716    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
717      (were missing in NH mode, and wrong in quasihydrostatic mode).
718      waiting for Chris updated version of calc_gw to add those CALLs.
719    o fix bug in quasihydrostatic S/R ;
720      add a test for this option: global_ocean.90x40x15.qshyd
721    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
722      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
723    o add on/off flag useOffLine for package OFFLINE
724    o seaice:
725      - modify advection so that it works also on the C-grid
726      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
727        problem in multi-tile runs with C-grid
728      - add flags for clipping ice velocities and/or masking solver forcing
729      - fix drag (ocean on ice) formulation and a bug that caused noise in the
730        C-grid solver
731      - added a few comments to seaice_diffusion.F
732      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
733        are now exclusive)
734      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
735        required re-ordering the code a little:
736       + make DAIRN global variable (defined in SEAICE)
737       + move computation of the viscosities eta and zeta into a new separate
738         routine (because I need to recompute them in seaice_ocean_stress.F)
739    
740    checkpoint58b_post
741    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
742      update output.txt of exp. aim.5l_cs.thSI
743    o various mnc cleanups and improvements:
744      + shrink lookup tables by factor of ~4
745      + better error reporting when running out of lookup space
746      + able to handle longer path/file names (up to 500 chars)
747    o adjoint:
748      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
749      - TBD: "hidden" mom_vecinv recomp. in dynamics
750    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
751     (allow to differentiate between forcing components using new integer flags:
752      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
753     and add new flag to put Dissipation tendency out of Adams-Bashforth.
754    o ecco
755      - enable trend removal from SSH anomaly obs.
756    o adjoint
757      - a fix for PmEpR when #undef EXACT_CONSERV
758      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
759      - try to fix "hidden" recomp. in forward_step for NLFS
760        (NLFS seems broken sometimes after I checked it in)
761    o seaice:
762     - add c-grid version of the dynamic solver:
763       + three new routines that are the c-grid substitute lsr, dynsolver
764         and ostres
765       + put a few fields that were local to dynsolver into global common
766         blocks, so that I can move the computation of stresses etc into
767         seaice_lsr (saves coding but may break the adjoint).
768     - replace more hardwired parameters by runtime parameters
769     - add ice masks that mask the rhs of the implicit solvers where there
770       is no ice (commented out in seaice_dynsolver, because i am not sure
771       if this works properly), eventually this should replace the clipping
772       of ice velocities in seaice_dynsolver to +/-40cm/s.
773    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
774      include it only where its needed
775    o move balancing of fluxes before the call of external_forcing_surf
776    o seaice:
777      - correct units of turning angles (now they are really in degrees)
778      - move computation of GWATX/Y out of main routine into dynsolver
779      - initialize GWATX/Y in seaice_init
780    o Apply mask on Fresh-Water flux (needed for SSH forcing).
781      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
782    o seaice: add runtime flags for turning angles (default to zero)
783    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
784      and trend from exf forcing and ctrl control adjustments
785    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
786      (since checkpoint57x_post)
787    o change the default rotation period to 86164.s = the Earth rotation
788    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
789      and based on a reference stratification. Tested within hs94.cs-32x32x5.
790    o seaice advection: add code for choosing between the default (2nd order
791      central differences) and multiDim advection schemes provided by
792      pkg/generic_advdiff
793    o seaice:
794      - removed all references to SEAICE_GRID.h fields from
795        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
796        (cubed-sphere configuration will change a little)
797      - grid computations in seaice_init are obsolete now.
798      - cleaned up code a little so that is easier to read (hopefully).
799      - added new (better?) discretizations of default advection and diffusion
800        (turn on with SEAICEuseFluxForm)
801      - replace 1 in 3d global fields by kSurface in growth.F
802      
803    checkpoint58a_post
804    o seaice:
805      - bug fix in advect.F
806    o shelfice:
807      - separate shelfice load anomaly from pload (breaks with time
808        dependent forcing), => introduce constant field shelficeLoadAnomaly.
809        Its default is 0., but it may be computed more cleverly from (unknown)
810        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
811        done offline. A good approximation of the pressure load anomaly is
812        necessary to avoid large initial adjustment processes underneath
813        deep-reaching shelfice.
814      - small fix in ISOMIP shelfice_thermodynamics
815      - add more sophisticated thermodynamics of Hellmer (1989), this is
816        now the default
817      - give a few constants more intuitive names
818    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
819      if bulk formulae are used in long integration (especially EmPmR). Turn
820      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
821      if balancePrintMean, the imbalance that is substracted is printed to
822      STDOUT.
823    o fix bug (typo) in obcs_apply_eta.F
824    o add a new package shelfice which enables us to model the circulation
825      underneath shelf-ice with draughts of hundreds of meters.
826     - works
827     - to do: + include improved thermodynamics
828              + check whether kSurfC (from model/inc/SURFACE.h) can be used
829                instead of new field kTopC
830              + can we use topoFile, Ro_surf and existing code in ini_depth.F
831                instead of new field R_shelfIce and new code in ini_depth.F
832                and ini_mask_etc.F?
833              + adjust vertical mixing schemes?
834    o seaice pkg:
835     - add a cpp-flag to include a simple formula for a salinity dependent
836       freezing point of sea water at the surface
837     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
838       meridional stresses are now different (and hopefully correct)
839    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
840       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
841       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
842    o pkg/diagnostics: add options and parameters for regional-statistics
843       diagnostics ; define regions by reading a region-mask from a file
844       (might add other options later)
845    o pkg/bulk_force:
846     - add option and parameters to use AIM surface-flux formulae.
847     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
848       others forcing fields (defined in PARM05, parameter file "data") are loaded
849       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
850     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
851     - use the right EXCH call for uwind,vwind (to work on CS-grid).
852     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
853       and parameters (note: calcWindStress replaces .NOT.readwindstress).
854     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
855    
856    checkpoint58
857    o add "--embed-source" option to genmake2 which, when the supporting
858      tools can be compiled (as determined by genmake2) will turn on the
859      embed_files package which then embeds the entire MITgcm source code
860      (*.[fFhc] + Makefile) used for the build within the executable
861      - requested by CNH but off by default
862      - adds a paltry <9MB to the mitgcmuv executable in most cases
863      - only writes the output when useEMBEDSRC in eedata is true
864    o clean up 3-dim. relaxation codes:
865      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
866      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
867      * Thanks to Tom Haine for testing!
868    
869    checkpoint57z_post
870    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
871      affects output (@ truncation level) of exp. plume_on_slope ; updated.
872    o fix the pickup behavior for obcs in combination with ptracers
873    o fix a bug in ptracers_external_fields_load
874    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
875      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
876    o transfered surface NH pressure to eta field (if exactConserv).
877    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
878         and update lab_sea output.txt file.
879    o completing 3-dim. relaxation code: additional term
880         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
881      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
882      * At compile time, in "EXF_OPTIONS.h" set
883          #define  ALLOW_CLIMTEMP_RELAXATION
884          #define  ALLOW_CLIMSALT_RELAXATION
885      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
886          tauThetaClimRelax3Dim = 15552000.0,
887          tauSaltClimRelax3Dim  = 15552000.0,
888      * 3 cases:
889          1) Use a constant-in-time 3-dim. field
890          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
891          3) Real-time relax. to time-evolving prescribed field
892    o Adding Laplacian-type smoothness constraint on
893      initial and boundary (forcing) controls (ic, bc)
894      * enable at compile-time via
895        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
896      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
897      * Absolute scale somewhat unclear so far
898      * no area weighting was included since no other cost term does so far
899    
900    checkpoint57y_post
901    First step for a NLFS adjoint
902    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
903    o new init. routines for calc_r_star, calc_surf_dr
904    o still need to deal with ini_masks_etc
905    o testreport seemed happy
906    checkpoint57y_pre
907    
908    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
909    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
910    o add new offset feature to offline pkg (plus minor cleanup)
911    o cfc fixes for final year of integration
912    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
913      be in GCHEM_OPTIONS).
914    
915    checkpoint57x_post
916    o fix testreport Pb in multiple test experiment.
917    o cleanup our namelist syntax in verification:
918      - make it more F95 standards compliant (some work still needed)
919      - allows the vast majority of our tests to work with gfortran
920    o Non-Hydrostatic:
921     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
922     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
923    o Allow to apply AB on T,S rather than on AB(gT,gS):
924     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
925     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
926       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
927     - need a "clever" read_pickup to restart from the other AB formulation
928    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
929    o remove some unused variables (reduces number of compiler warnings)
930    o adjoint
931      * Disable useVariableViscosity for adjoint for time being
932        (there are a number of extensive recomputations)
933      * Initialize certain variables needed for adjoint
934    
935    checkpoint57w_post
936    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
937                 fix the singleCpuIO RS version of MDSWRITEFIELD
938       and add a WARNING if using globalFiles=T with multi-processors.
939    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
940      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
941    o tracer advection scheme:
942      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
943       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
944       was not very convenient).
945      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
946       (further tests needed for the implicit DST & Flux-Limiter schemes).
947    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
948      and sRef for convenience, handy, when you want to initialize
949      ptracers in a large domain with a constant non-zero value. Also,
950      untangle ptracers_init.F a little.
951    
952    checkpoint57v_post
953    o change dome exp. to use variable viscosity in side-drag terms.
954    o remove all the files from the cfc_offline test since they are now
955      incorporated into tutorial_cfc_offline which has been producing
956      identical results for a few days of testing
957    o add new parameter: sideDragFactor to enable half-slip-side BC
958      and change side-drag S/R to use viscosity from mom_calc_visc
959      (can switch back by setting sideDragFactor=0.); affects results at
960      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
961       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
962    o vorticity & strain are now computed without masking, to account for
963      no-slip-side BC in variable viscosity calculation ; mask is applied
964      anyway later on, before computing advection/coriolis terms.
965    o modify exp4 to test new obcs support for reading from external files
966      and for passive tracers
967    o fix behavior of ptracers_monitor when monitor output is written to a
968      netcdf-file; still not independent of monitor.F (writes in the same
969      file).
970    o change default value of tRef (put a uniform, meaningful value for ocean
971      & atmos) and initialize sRef (was missing, as Martin mentioned).
972    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
973      to be proportional to enstrophy dissipation length.  Thus,
974       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
975      This is now consistent with Smagorinsky and with the manual.
976    
977    checkpoint57u_post
978    o OBCS and PTRACERS: add open boundary support for passive tracers
979      - either use homogenous (pseudo) v.Neumann conditions or prescribe
980        OB-values from file; this is not different from the way theta and salinity
981        are treated
982      - however, Orlanski-radiation conditions are not supported, and the model
983        will stop if you use pTracers and Orlanski at the same time.
984      - beefed up the rountine obcs_external_fields_load: now only those open
985        boundary values are overwritten with values from files for which there
986        are really files, otherwise the OB-fields remain untouched. This makes
987        it possible to use different OBs at different ends of the domain (as
988        with EXF)
989    o reduce number of exch calls in shap_filt (s2).
990    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
991      truncation level) 4/5 MLAdjust test results (11&12 digits match).
992    
993    checkpoint57t_post
994    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
995    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
996      same truncation, independent of the face number: affects affects several
997      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
998    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
999      note that biharmonic viscosity + no-slip was not tested in any experiment.
1000    o fix bug in non-linear free-surf side-drag ; generate new output for
1001      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1002    o make mnc honor the writeBinaryPrec flag for most kinds of output
1003    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1004    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1005      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1006    o add brackets in multi-terms sum to get same truncation, independent of
1007      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1008      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1009    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1010      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1011      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1012      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1013      Suggested values of viscosity parameters found in mom_calc_visc.
1014      Many new viscosity diagnostics available.
1015    
1016    checkpoint57s_post
1017    o Add clearing-house for viscosity calculations, mom_calc_visc and
1018      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1019      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1020      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1021      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1022      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1023      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1024      ViscAhStrain and viscAhTension are now retired.
1025    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1026    o In response to JMC's bug report, genmake2 now ignores any soft-links
1027      that it finds in the *current* directory when searching for files.
1028      Soft-links found in any other source directories will still work as
1029      they did before.
1030    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1031      a C routine to unlimit the stack size
1032    o mnc-ify pkg/aim snapshot vars
1033    o mnc-ify pkg/land as requested by Daniel
1034    o various changes to mnc including:
1035      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1036      - output can now be grouped so that all files within a group
1037          change the ITER portion of their names in lock-step together
1038      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1039          and works with both EXCH1 and EXCH2 (but needs more testing)
1040      - writing works for all verification test cases w/ g77 on Linux
1041    
1042    checkpoint57r_post
1043    o make MNC variable initialization happen earlier
1044    o add diagnostics for (almost) each term of the momentum Eq.
1045    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1046    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1047    o remove MINIMAL_TAVE_OUTPUT option ;
1048      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1049    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1050      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1051    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1052    o add time-dependent SST, SSS control
1053    o cost terms in ecco/ modularized (new cost_generic.F)
1054    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1055    o new infrastructure for seaice model vs. obs misfits in seaice/
1056      * driver from the_main_loop.F is seaice_cost_driver.F
1057      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1058      * gradient check in Exp. 6a of natl_box_adjoint/
1059    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1060      (see README file)
1061    
1062    checkpoint57q_post
1063    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1064    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1065      - bug was reported by Jean-Michel and Ian Fenty
1066    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1067      update exp. cpl_aim+ocn output.
1068    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1069      Needed for high-res. runs with large global files
1070      to be able to limit tapelev size
1071    o Changed some tests for adjoint:
1072      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1073      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1074      * global_ocean.90x40x15/ back to default 3-level checkpointing
1075    o Modifications to enable scripted COMMON to MODULE conversion
1076      * verification/OpenAD/code/ has necessary scripts and description;
1077      * converts, compiles and runs successfully;
1078    
1079    checkpoint57p_post
1080    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1081    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1082      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1083    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1084    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1085      (was already the case for dissipation with mom_vecinv,
1086       and also the case for grad.PhiHyd when staggered-timeStep)
1087      This will allow to put dissipation out-off the AB time-stepping.
1088     Unfortunately, affects truncation error. Update output of exp. that "fails"
1089      (cg2d matching number) and leave the others for later: front_relax(10),
1090      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1091      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1092    
1093    checkpoint57o_post
1094    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1095      (2) its ready to be documented during the 20050801 DocFest
1096    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1097      for ideal_2D_oce and lab_sea on linux_ia32_g77
1098    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1099      in global1x1_tot/code_seaice_adj to access indices 32, 33
1100      (worth another tag)
1101    
1102    checkpoint57n_post
1103    o adding precip control xx_precip 32
1104    o adding swflux control xx_swflux 33
1105    o Replacing 10 forcing penalty cost routines by 1 generic.
1106    o Implementing partitioning in time-mean and variable adjustment
1107      for atmos. state.
1108    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1109    o in natl_box_adjoint:
1110      * updated exp 1 to 10
1111        (but does not have time-mean vs. variable split results yet)
1112    o updated global1x1/*_seaice_adj/
1113      to incorporate latest changes
1114    o enable useSingleCpuIO for mdsio vector routines
1115      (applies in particular to tapelev I/O)
1116    o removed inefficient K-loop in all active_file*control*.F
1117    
1118    checkpoint57m_post
1119    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1120      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1121    o pkg/exch2: filling of face-corner halo regions is optional
1122      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1123    
1124    checkpoint57l_post
1125     tag before updating tutorials (pre-release-2)
1126    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1127       for output and interpolation of input fields onto model grid)
1128    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1129       Affects results of exp. rotating_tank ; update output.txt.
1130    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1131          and taking the square quantity and/or using a fraction-weight field.
1132    o fix aim_diagnostics_init.F mate numbers.
1133    o add mnc output capability to diagnostics/diagstat and update
1134      our cvsignore files for the ACSII output generated
1135    
1136    checkpoint57k_post
1137    o lab_sea now uses diagnostics package and provides a suite of
1138      new EXF diagnostics output.
1139    
1140    checkpoint57j_post
1141    o exf
1142      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1143        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1144        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1145      * extended diagnostics output
1146        - now includes all EXF variables
1147        - hs, hl moved to common block
1148        - separate S/R for diagnostics, called after ctrl vector is added
1149        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1150        - EXFqnet contains true Qnet (i.e. includes qsw)
1151      * updated verif. lab_sea, global_with_exf
1152      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1153        to ensure that diagnostics sees a true EXFqnet
1154    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1155    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1156      several times with different frequencies.
1157    o mnc-ify the thsice package as requested by Daniel Enderton
1158      - the monitor--MNC output needs work
1159      - many attributes need to be added (most are currently blank)
1160    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1161      - many attributes need to be added (most are currently blank)
1162    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1163    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1164    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1165      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1166         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1167    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1168     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1169    
1170    checkpoint57i_post
1171    o Diagnostics package was changed: diagnostic allocation is now deactivated
1172      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1173    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1174      add 1rst Order upwind vertical Shear.
1175    o add a quick fix for A/B checkpointing in OFFLINE mode
1176    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1177      end-run around the C/Fortran linking horror in eesup/src/timers.F
1178    o added pkg/runclock: allows user to terminate run based on wall clock
1179    o added non-hydrostatic scaling parameter: nh_am2
1180    o pkg/my82: futile attempt to make results compiler-independent by adding
1181      some "_d 0", etc. no effect.
1182    o for mnc output, fill the 'T' coordinate var with myTime and create a
1183      separate 'iter' variable for iteration count
1184    o pkg/diagnostics:
1185      add new capability: output of Global/Regional & per-level statistics ;
1186      tested against monitor output (including land & thSIce) on various exp.
1187    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1188    
1189    checkpoint57h_done
1190      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1191      data.diagnostics, data.gchem, data.ptracers) is done.
1192    
1193    o pkg/diagnostics: prepare for Global/Regional statistics.
1194      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1195    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1196      and rename it: DIFFERENT_MULTIPLE
1197    
1198    checkpoint57h_post
1199    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1200    o pkg/diagnostics: change output frequency, now in seconds (instead
1201      of Nb of iterations). This requires to change data.diagnostics.
1202    checkpoint57h_pre
1203    
1204    o in mnc, let the user create the output dir if both mnc_outdir_date
1205      and mnc_outdir_num are false
1206    o add fflags() to pkg/diagnostics which allows one to specify, on a
1207      per-file basis, the file precision [default behavior is unchanged]
1208    o added diagnostics to pkg/kpp, including computation of mixed layer
1209      depth based on a temperature/density criterion
1210    o updated verification/natl_box to test the new pkg/kpp diagnostics
1211    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1212    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1213    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1214      not mnc -- this mistake was found by JMC and is now corrected
1215    
1216    checkpoint57g_post
1217    o add Adams-Bashforth 3rd Order time stepping:
1218      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1219      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1220    checkpoint57g_pre
1221    
1222    o make lambda[Theta,Salt]ClimRelax spatially varying
1223      (default remains spatially uniform constant based on tau)
1224    o added new control variables
1225      * init. uVel, vVel, etanN
1226      * lambda[Theta,Salt]ClimRelax
1227    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1228      (suggested by G. Forget)
1229    
1230    checkpoint57f_post
1231    o add parameter "baseTime" = model base time = time at iteration zero
1232      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1233      account for baseTime shift
1234    o move Coriolis arrays from PARAMS.h to GRID.h
1235    checkpoint57f_pre
1236    
1237    o mnc-ifying the seaice package
1238    o introduced an alternative length scale calculation for use in the limiting
1239      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1240    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1241    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1242      as well as grad(vort3).  Made it compatible with both approximate form
1243      for the cubed sphere and full form of these gradients.  Added flag
1244      useFullLeith to select between approximate and full form.  
1245    o add "d0" in getcon.F to reduce differences between compilers/platforms
1246      update output.txt of exp. fizhi-gridalt-hs
1247    o change port_rand funtion to allow to set the seed.
1248    o fix obscure MNC bug involving conversion between reals and integers
1249      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1250        new version is now more standards-compliant
1251    o adjoint-related modifications
1252      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1253      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1254      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1255    
1256    checkpoint57e_post
1257    o Adding eddy stress controls a la Ferreira et al.
1258    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1259    
1260    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1261      update output.txt of exp. fizhi-gridalt-hs
1262    o add more "Z" dimensions and associated coordinate vars to MNC
1263    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1264    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1265      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1266      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1267      months and years.  Requires pkg/cal.
1268    o diagnostics: add pickup functionality
1269      - off by default for backwards compatibility
1270      - current version only uses MDSIO -- MNC will be added
1271    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1272    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1273    
1274    checkpoint57d_post
1275    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1276    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1277      output from the diagnostics package
1278    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1279    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1280      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1281    o add coordinate variables to the MNC output from the diagnostics package
1282    o change MNC-flags default value: true when useMNC=TRUE
1283    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1284      the ability (off by default) to read the grid information using MNC
1285    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1286    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1287    o do snap-shot diagnostics at the middle of the time-interval (instead of
1288      at the end).
1289    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1290      new test for AIM with thSIce + slab-ocean
1291    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1292    o move state variable diagnostics to the beginning of the time step ;
1293      (note: still needs some work specially for snap-shot diagnostics)
1294      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1295    
1296    checkpoint57c_post
1297    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1298    o generate new output.txt files on faulks with g77 & the new -ieee option
1299    checkpoint57c_pre
1300    
1301    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1302      update output.txt of exp. global_ocean.90x40x15
1303    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1304      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1305    o add saltFlux(+File) forcing capability with periodicExternalForcing
1306    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1307    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1308    o improvements for the MNC output from DIAGNOSTICS:
1309      - correct handling of the unlimitied dimension
1310      - all dims now have associated coordinate variables
1311      - variables located at U, V, and Corner ("Z") points are now written
1312        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1313        *all* data points are output
1314    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1315    o added pkg/seaice/seaice_monitor.F
1316    o mdsio_readfield.F can now read files visible only to master MPI process.
1317    o pkg/seaice: some test code for ice-modified ocean stress
1318    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1319      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1320      spurious negative numbers for precipitation and humidity.  Will cause
1321      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1322    o pkg/ctrl/
1323      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1324        May be enabled via doPackDiag
1325      *  introduce z-scaling of
1326         + gradient (doZscalePack) and
1327         + control (doZscaleUnpack)
1328    o pkg/mdsio/
1329      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1330      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1331    
1332    checkpoint57b_post
1333    o simplify options in diagnostics_fill arguments (remove weird combinations)
1334    o fix MNC coordinate variables so that they now contain per-face index
1335      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1336      general, EXCH2 grids are only aligned to a "local" coordinate system
1337    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1338    o Implement instantaneous output within pkg diagnostics:
1339      setting a negative frequency in data.diagnostics produces
1340     "snap-shot" output (as opposed to time-average if freq > 0)
1341    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1342      NOTE: change ptracer diagnostics name: use 2 characters to work with
1343            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1344    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1345      becomes the coordinate variable for the 'T' dimension
1346    o add CF-style coordinate variables to MNC
1347      - just a first cut:  numbers are meaningless on the cubesphere and
1348        missing along the T axis but otherwise it works!
1349    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1350    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1351    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1352      this is based directly on what the model compute, so that the content of
1353      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1354    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1355    o clean up build options files for SunOS, in particular
1356      - remove -traditional from xmakedepend
1357      - change -xarch=v9 to -xarch=native for f77
1358      - restore use of make (not gmake)
1359      - add CC=gcc if using g77
1360    o changes per discussion of AM, JMC, & EH3 today:
1361      - move redundant "grid" variables out of "state" -- in preparation of
1362        creating proper CF-style coordinate variables and in recognition
1363        that any/all grid variables can be easily copied (eg. w/NCO) from
1364        the grid files into any of the other NetCDF files
1365      - *always* output grid variables with MDSIO (this will eventually be
1366        changed)
1367      - output MNC grid file if useMNC is true
1368    o every instance of _END_MASTER() has been found and replaced with
1369      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1370      preprocessors
1371    o re-arrange diagnostics pkg initialisation:
1372     - allow each package to extend the available diagnostics list
1373     - add some checking and fix small problems (multi-threaded, ...)
1374     - new S/R diagnostics_fill (replace fill_diagnostics):
1375       look through the short list of active diag. (instead of the long list)
1376       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1377    
1378    checkpoint57a_post
1379    o this set of changes restores TAMC compatibility
1380      tested for global_ocean.90x40x15 adjoint on trough
1381      (what a pain)
1382    
1383    checkpoint57a_pre
1384    o some modifs in tools/build_options for sunos
1385    o call ctrl_pack for ctrl at end for optimcycle=0
1386    
1387    checkpoint57
1388    o add horizontal bi-harmonic viscosity for vertical velocity
1389      - new parameter viscA4W (defaults to viscA4)
1390      - affects only non-hydrostatic code
1391      - to be done: no-slip lateral boundary conditions
1392    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1393    o implement Implicit Vertical advection for pTracers
1394    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1395      (implemented also for implicit vertical diffusion & advection)
1396    o OBCS: extend application of tracer open boundary conditions
1397      to a strip beyond the boundary of width Olx/Oly
1398    o add call monitor to TAF set of required calls (flow directives)
1399      and include in natl_box_adjoint
1400    o untangle a few ifdefs related to cost, ctrl, autodiff
1401      untangel a few ALLOW_ECCO_OPTIMIZATION
1402    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1403      (theta2, salt2 in ecco_cost_weights)
1404    
1405    checkpoint56c_post
1406    o OBCS as control variables
1407      - update ctrl_ad_diff.list, obcs_ad_diff.list
1408      - remove balance of obcs controls from default
1409      - fix index bug nobcs in ctrl_init
1410      - fix dummy fields filen in ctrl_pack
1411      - add dummy weights for obcs
1412    o lsopt: comment out fort.94 output
1413    o optim:
1414      - remove unnecessary header files
1415      - adjusted namelists
1416      - add xerbla.F to Makefile
1417    o exf:
1418      - multiple modifications of exf_check_range
1419      - unit change in exf_init_runoff from [m/year] to [m/s]
1420    o mdsio:
1421      - i/o-vector change debugLevel from debLevA to debLevB
1422    
1423    checkpoint56b_post
1424    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1425      is called from DO_THE_MODEL_IO
1426      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1427      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1428      - clean up PTRACERS_WRITE_TIMEAVE a little
1429    o add another verification experiment that tests both the cfc-pkg and
1430      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1431      reactive tendencies treated inline with regular timestepping
1432    o testreport previously did a lousy job of comparing small numbers, so
1433      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1434      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1435      testreport.
1436    o ptracers_monitor: bug fix for MPI
1437    
1438    checkpoint56a_post
1439    o GCHEM: finish reorganizating the package
1440      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1441        (introduces another 3D-array for each passive tracer, but only if
1442        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1443        gchemTendency is not needed because the timestep is done separately)
1444      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1445      - GCHEM is now---more or less cleanly---separate from PTRACERS
1446      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1447        so clear to me how that should be done in a general way.
1448    o CFC: improve formatting of output in CFC_ATMOS
1449    o PTRACERS:
1450      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1451        that ALL experiments with ptracers enable can be checked. This makes
1452        GCHEM_MONITOR obsolete.
1453      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1454        monitorFreq
1455      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1456    o add PTRACERS (PTR0[1-5]) to testreport output
1457    o exf_check_range:
1458      * default changed to .TRUE.
1459      * will check values for niter0 if debLevA, every timestep if debLevB
1460      * STOP in exf_check_range if 'out of range'
1461      * range chosen generous to allow for potential extema
1462      TBD: a version with stricter range
1463           permitted range would be runtime parameters
1464    o GMredi:
1465      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1466      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1467      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1468    o GCHEM:
1469      - move call to GCHEM_FORCING_SEP, so that it is now called before
1470        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1471      - introduced a useGCHEM runtime flag and applied it everywhere.
1472      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1473        this flag is now only visible within GCHEM-pkg routines.
1474      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1475        be replaced by a 3D array that is computed before thermodynamics; for
1476        this, the tracer ID iTracer had to be included into the parameter list
1477        of ptracers_forcing
1478      - set up forward_step to call gchem_forcing, that will replace
1479        gchem_forcing_int in ptracers_forcing
1480      - cleaning up
1481    o small cleaning of exch2: remove files that are also in eesupp/src
1482    
1483    checkpoint56
1484    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1485    o mnc: cleanup "full" files--fixes out-of-memory problem
1486    o ECCO-GODAE
1487      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1488      * fully merged and updated from SIO code
1489        windstress sign change affects
1490        - exf_inscal_[u/v]stress
1491        - sign of xx_tau[u/v] adjustments
1492        - signs in cost_scat
1493      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1494      * natl_box_adjoint updated and compressed
1495      * 2-level checkpoint switch added
1496        (tested in EXP. 1 of natl_box_adjoint)
1497      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1498    o SVD
1499      * first complete, non-hacked version for SVD calculations
1500      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1501        performed via direct access files admtlm_vector.it????
1502        (via ctrl_[un]pack)
1503      * optimcycle is used for ARPACK iteration counter
1504        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1505      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1506        and add linear transforms where necessary
1507      * controls are initial/final SST, SSS (can be extended; need to check
1508        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1509    o mdsio: filename info to both stderr, stdout
1510    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1511      from sign change
1512    
1513    checkpoint55j_post
1514    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1515      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1516    o add consistent build directories and .cvsignore files to verification
1517    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1518    o make all subroutines 30 or less characters in length for certain older
1519      compilers to work (a thorough search only turns up two routines in
1520      pkg/ptracers)
1521    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1522      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1523    
1524    checkpoint55i_post
1525    o change arrays for total vertical diffusivity (2.D if explicit,
1526      3.D if implicit) ; each ptracer uses its own background value.
1527    o added mnc/NetCDF output capability to ocn_compon_interf
1528      - added bits to verification/cpl_aim+ocn so that it can run on
1529        ITRDA and other clusters without the mpirun "-wd" option
1530    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1531      configuration
1532    o give MNC the ability to create additional files rather than
1533      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1534      - the default is just less than 2GB which is a practical limit
1535        on many systems
1536    o Compute the non-local term using either KPP vertical diffusivity (=default)
1537       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1538    
1539    checkpoint55h_post
1540    o add verification test "vermix"
1541    o remove all the *_ioinc flags and replace with the single global
1542      outputTypesInclusive flag
1543    o allow to set a vertical profile of vertical diffusivity for T & S
1544    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1545    o useMNC moved from data.mnc to data.pkg
1546    
1547    checkpoint55g_post
1548    o Renaming carbon AD experiments to comply with testreport conventions
1549    o Updating adjoint of Held-Suarez hs94.1x64x5
1550    o Fixing directives for non-ECCO forward_step, after ECCO directives
1551      have been fixed to avoid recomp. of do_oceanic_phys
1552      Works well for global_ocean.90x40x15,
1553      but recomp. issue remains for carbon
1554    o Updating adjoint output for natl_box_adjoint after
1555      pkg/ecco has been modified (see taga c55d_post)
1556    
1557    checkpoint55f_post
1558    o rename to timeave_init_fixed
1559    
1560    checkpoint55e_post
1561    o some delicate re-shuffle of store directives to avoid one
1562      extra call of do_oceanic_physics
1563      affects ecco_the_main_loop.F, do_oceanic_physics.F
1564      checkpoint_lev1_directives.h
1565    o NB: this may break global_ocean adjoint temporarily,
1566      but it is clear how to fix it. Will do later, need this now.
1567    
1568    checkpoint55d_post
1569    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1570    o ecco_cost_weights is modified to 1x1 runs
1571    o modifs to allow observations to be read in as
1572      single file or yearly files
1573    o enable to read exf forcing fields as either
1574      single file or yearly files (flag useExfYearlyFields)
1575    checkpoint55d_pre
1576    
1577    o switch between 2-level and 3-level checkpointing
1578    o add ability of MNC to write local and "partial" (eg. 2D slices where
1579      the full 3D field is never actually stored) arrays to NetCDF files
1580      with the correct (that is, the complete multi-dimensional) set of
1581      array indicies
1582      - used in mom_vecinv() to write the diagFreq output
1583      - tested (demonstrated) in verification/aim.5l_cs
1584    o further mnc-ification
1585      - add verification/lab_sea to the list with mnc setups
1586      - fix undefined mnc v-names in cd_code
1587      - add kpp to mnc output (both snapshot and timeave)
1588    o non-hydrostatic code
1589      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1590        in calc_gw.F
1591      - defaults to viscAh
1592      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1593        friction or Leith) in non-hydrostatic mode, as long as there is
1594        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1595    o pkg/cost
1596      extend simple cost functions to treat time mean quantities
1597      (T,U,V) via cost_accumulate_state from cost_tile
1598    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1599        be 2 times larger than the minimum size the advection scheme requires.
1600        now get a perfect conservation of salt in advect_cs test-exp (updated)
1601    o GGL90 (Gaspar's TKE mixed layer)
1602      - add horizontal diffusion of TKE, requires exchanges in
1603        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1604        default. In OPA there is no horizontal diffusion of TKE but the
1605        mixing coefficients are computed from a horizontal average of TKE of
1606        6 points or so. I think that diffusion has a little more physical
1607        justification.
1608      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1609        was in vain)
1610      - mask tke-variable in ggl90_init
1611    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1612    o fix biharmonic diffusion on CS-grid.
1613    o more obcs stuff
1614      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1615        for reading boundary values. This routine is called from
1616        obcs_prescribe_read
1617      - updated obcs_check
1618      - changed sponge layer relaxation parameter units for days to seconds
1619      - turned off sponge layer by default
1620      - changed argument list of OBCS_CALC to myTime+deltaTclock
1621      - fixed about 35 bugs in obcs_external_fields_load
1622    
1623    checkpoint55c_post
1624    o obcs stuff
1625      - new runtime flags useOBCSprescribe, useOBCSbalance
1626      - re-arranged obcs_calc
1627      - moved exf_getobcs to obcs_prescibe_read
1628        obcs_prescibe_read is called after ORLANSKI stuff
1629        and independent of it (executable can contain all).
1630      - updated obcs_check
1631      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1632        These may be necessary only if tangential velocities are
1633        prescribed at OB, not sure, needs testing.
1634    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1635      which simplifies the calls and passes the ifc check-bounds test
1636    
1637    checkpoint55b_post
1638    o add a 2D scalar, Z location, exchange_2 routine.
1639    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1640      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1641      affects advect_cs results (for the wrong reason): update output.txt
1642    o use a more standard discretization for biharmonic viscosity ;
1643     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1644      affects results of dome set-up: update output.txt
1645    o fix gad_advection.F (CubedSphere part), back to version 1.23
1646    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1647    
1648    checkpoint55a_post
1649    o merged code to
1650      * prescribe/read time-dependent open boundaries
1651        (works in conjunction with exf, cal)
1652      * sponge layer code for open boundaries
1653      * each boundary N/S/E/W now has its own CPP option
1654        (healthy for the adjoint)
1655    
1656    checkpoint55
1657    o up-to-date adjoint of previous breaks
1658      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1659      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1660      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1661      - carbon: * remove tr1-related adjoint verification
1662                * add ptracer as control variable
1663    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1664      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1665    
1666    checkpoint54f_post
1667    o in verification/carbin/ remove experiment related to
1668      ALLOW_PASSIVE_TRACER (array tr1 etc)
1669      code_ad/ input_ad/ results_ad
1670    
1671    o add two new packages
1672      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1673        + subject to optimization (memory)
1674      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1675        + subject to reordering (many GOTOs in the original code)
1676        + so far opps is called for every (i,j) point, and then operates in
1677          the vertical; one may want to reorder the scheme in order operate in
1678          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1679          fields)
1680    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1681      - all verification tests compile and run with linux_ia32_g77
1682      - defaults are compatible with current input files--nothing
1683        should change if you were not previously using MNC
1684      - MNC output has been added in numerous places (eg. timeave)
1685        but there are still a few writes not yet do-able with MNC
1686        (this is in progress)
1687      - flags now allow for either/or/both use of MDSIO and MNC and
1688        documentation will soon follow
1689      - numerous small formatting cleanups for ProTeX
1690    o add version info (via BUILD_INFO.h) to MNC and stdout
1691    
1692    checkpoint54e_post
1693    o add two new packages
1694      - pp81 (Packanowski and Philander, 1981), Richardson number and
1695        stratification dependent mixing
1696      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1697      - these scheme operate in a similar manner as KPP (without ghat, of
1698        course), however there is only one diffusivity that is used for both
1699        temperature and salinity (and passive tracers)ç
1700    o add offline package
1701    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1702      provided by Stephanie Dutkiewicz
1703    o genmake2: add ability to search for C compilers and cleanup test output
1704      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1705    
1706    checkpoint54d_post
1707    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1708    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1709      leading to additional shift by 5 days each year of integration
1710       (i.e. leading to considerable offset over the years)
1711    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1712    o start with no AB and no initial filtering (staggerTimeStep):
1713      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1714    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1715      (external loading & cpl import/export stay in forward_step.F)
1716    o update coupling interface to work with new staggerTimeStep
1717    o change MDSIO ptracers_pickup.
1718    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1719    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1720    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1721    
1722    checkpoint54c_post
1723    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1724      this affects (truncation error) output.txt of test-exp:
1725       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1726    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1727    o change Qnet to always be the net heat flux, (+upward).
1728      affects (truncation error) output of natl_box exp.: updated
1729    o define the max number of passive tracers in PTRACERS_SIZE.h
1730    o start to test mnc routinely in exp0
1731    o add sea-ice loading (sIceLoad) as a new forcing field.
1732    
1733    checkpoint54b_post
1734    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1735       impressive on Altix and Opteron systems)
1736    o diagnostics can now write NetCDF files through the mnc package
1737    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1738    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1739    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1740      affects (truncation error) output of lab_sea & natl_box exp.: updated
1741    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1742    
1743    checkpoint54a_post
1744    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1745    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1746    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1747    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1748      + internal_wave (shift in writing cg2d_ini_res)
1749    checkpoint54a_pre
1750    
1751    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1752      - modified verification/lab_sea and natl_box_adjoint accordingly
1753    
1754    checkpoint54
1755    checkpoint53g_post
1756    o prepare splitting of thermodynamics: store convect.counter in common block
1757    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1758      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1759    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1760    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1761    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1762    o restore adjointability
1763    
1764    checkpoint53f_post
1765    o modifications that affect AIM experiment results (update output.txt):
1766      - no advection of S at top interface Nr (pkg/generic_advdiff)
1767      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1768    o AIM pkg:
1769      - include stability function into surf.Flux derivative relative to Tsurf
1770      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1771    
1772    checkpoint53e_post
1773    o merged cylindrical coord configuration
1774    o added rotating_tank experiment
1775    checkpoint53e_pre
1776    
1777    checkpoint53d_post
1778    o faulks upgraded: re-generate output.txt that have changed:
1779       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1780    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1781    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1782    o added Sadourny discretization of Coriolis
1783      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1784      - re-enabled use of omega3 (useAbsVorticity)
1785    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1786      vector-invariant equations
1787      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1788    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1789      hopefully without new bugs
1790      - still to do: biharmonic friction for non-hydrostatic w
1791    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1792    o regenerated output for global_ocean_ebm (using -ieee)
1793    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1794      of mom_common/
1795      - simple re-arrangement of instructions within computing loop
1796    checkpoint53d_pre
1797    
1798    checkpoint53c_post
1799    o new version of coupler for AIM+thSIce and Ocean models
1800     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1801     - land: change Evaporation of snow
1802     - aim with thSIce: fix bug in snow-precip.
1803    o changes to calc_gw.F
1804     - bug fix for w^2 term near the bottom boundary
1805     - (hopefully) improve the lateral slip boundary condtions for use with
1806        partial/looped cells
1807      - because the bug fix changes two verification experiments anyway (exp5
1808        and plume on slope), change the lateral boundary condition from half slip
1809        to the value of no_slip_sides
1810    o ebm package wasnt quite up to the parallel task. Fixed that.
1811    o Adjoint of EBM package + verification
1812      * TLM OK
1813      * ADM not sufficient accuracy yet (needs further testing)
1814    
1815    checkpoint53b_post
1816    o Commiting new energy balance model to repository
1817      * package is pkg/ebm
1818      * verif. is verification/global_ocean_ebm
1819      * references are in ebm_driver.F
1820    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1821    C        Global thermohaline circulation. Part I:
1822    C        Sensitivity to atmospheric moisture transport.
1823    C        J. Climate 12(1), 71-82
1824    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1825    C        Global thermohaline circulation. Part II:
1826    C        Sensitivity with interactive transport.
1827    C        J. Climate 12(1), 83-91
1828    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1829    C        Destabilization of the thermohaline circulation
1830    C        by atmospheric eddy transports.
1831    C        J. Climate 7(12), 1870-1882
1832    o Will need long integration testing.
1833    checkpoint53b_pre
1834    
1835    o created pkg/mom_common in preparation for variable viscosity code
1836    o renamed and split ini_mnc_io
1837    o pkg/land: only liquid water can diffuse or run-off
1838    o AIM using land: soil wetness availability account for snow
1839    o added printMapIncludesZeros to EEPARMS namelist
1840    
1841    checkpoint53a_post
1842    o restore TAMC compatiility for exf_constants.h
1843      (no usage of _d in .h)
1844    o Additional storing in KPP in an attempt to fix
1845      TAMC problem with adjoint of KPP code.
1846      (no success...)
1847      Identical code works fine with TAF.
1848    o Fixed verification/natl_box_adjoint experiments.
1849      Initial conditions for Experiments 4 and 5 are now
1850      set to "SEAICE_initialHEFF=0", which is more reasonable,
1851      and hence gives results closer to that of Experiment 2.
1852      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1853    
1854    checkpoint53
1855    o stable checkpoint with up to date adjoint
1856      TLM tests only run for 1st grdchk at the moment. Its unclear if
1857      this is a code problem or a problem with resetting code for g_
1858      variables that is being autogenerated wrong.
1859      Otherwise:
1860       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1861       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1862         are both still in chaos following their security messes.
1863    
1864    checkpoint52n_post
1865    o various build (mostly genmake2) changes including:
1866      - ability to build/run more easily within Cygwin and MacOS X
1867      - more complicated Makefiles with a stronger dependence on Gnu Make
1868    o pkg/seaice modifications
1869      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1870        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1871        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1872      - changed proxy for geostrophic velocity and updated
1873        verification/lab_sea/results/* accordingly
1874      - removed ADI dynamic solver from pkg/seaice
1875      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1876        they caused a segmentation fault under certain circumstances
1877      - removed unused field WATR
1878    o bug fix in exf-package:
1879      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1880         now reflect that.
1881    o small fixes in the cal-package:
1882      - set reference date to first of January for the 'model'-calendar
1883      - failing of cal_CheckDate in cal_FullDate now actually results in a
1884        warning
1885    o small modifications in exf-package to increase flexibility:
1886      - change climtempfreeze from a constant to a runtime parameter that
1887        is specified in data.exf_clim (default = -1.9)
1888      - introduce runtime parameter windstressmax (default = 2.0) that is
1889        specified in data.exf
1890    o fix in pkg/thsice:
1891      - update Evap (Tsf changes) to be consistent with Latent heat flux
1892      - maintain snow precipitation unchanged (even if Tsf >=0).
1893     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1894    
1895    checkpoint52m_post
1896    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1897      this does not change any of the results, because myIter=0 in swfrac always
1898      lead to jwtype=2 (the default anyway), but the call makes little sense
1899      as a default
1900    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1901    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1902      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1903    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1904    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1905    o extending useSingleCpuIO option to work with new exch2 I/O format
1906      - old-style, missing-tile I/O is still accessible by defining CPP
1907        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1908    o monitor package can write to NetCDF files and/or STDOUT
1909    o fix re-definition bug in MNC_GRID_INIT_ALL()
1910    o doc/api_reference added
1911      - a framework for building an API Reference Manual using all
1912        the "protex" comments embedded in the code
1913      - see pkg/generic_advdiff, pkg/mnc for examples
1914    o MNC:
1915      - make myThid the last argument for all subroutines
1916      - new default for the grid files: NO halos
1917      - add useMNC and other run-time flags
1918      - separate per-file-group handling of the unlimited dimension
1919      - early initialization of MNC w/ flags read at the eeboot stage
1920        and lookup tables set in initialize_fixed
1921      - write all MNC output to a freshly-created directory
1922  o thermodynamics sea-ice (thsice) is now tested with testreport.  o thermodynamics sea-ice (thsice) is now tested with testreport.
1923  o test exp. advect_cs: use the standard cs32 grid ; update output.  o test exp. advect_cs: use the standard cs32 grid ; update output.
1924    o Added functionality to grdchk:
1925      pick global i,j,k position (or nearest wet) where to perform check.
1926    
1927  checkpoint52l_post  checkpoint52l_post
1928  o new land formulation:  o new land formulation:

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