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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.861 by gforget, Mon Aug 20 17:44:38 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
8    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
9      a bounded range (in forward mode)
10    o pkg/ecco, ctrl, autodiff and mom_common:
11     internal parameter controls, completements of implementations
12    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
13    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
14       at face corners.
15    o pkg/generic_advdiff:
16     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
17      loop range indices for computing vertical advection tendency
18      and do the calculation in the interior only (no overlap) ;
19      for now, only implemented for SOM advection (to save CPU time).
20     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
21    o exch2 adjoint
22      First set of changes:
23      - add exch2 hand-written adjoint templates
24      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
25        This will require cleanup in pkg/autodiff/*.F
26        (changed routines currently kept separate in verif. code/)
27      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
28        that used to hide exch2 or cubed-sphere specific code
29        (commented via 'cph-exch2')
30    o pkg/seaice
31      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
32    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
33       output of global_ocean.cs32x15.thsice .
34    
35    checkpoint59e
36    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
37      for B-grid vector (not yet tested) and C-grid vector (<- only used
38      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
39    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
40      (#ifdef ALLOW_SALT_PLUME)
41    o gather_2d/scatter_2d: removed halo regions
42    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
43      scheme and the corresponding test case (under front_relax dir). For now,
44      only available with Skew-flux form and not yet tested in realistic set-up.
45      adjoint: store directives updated, but gradient checks deteriorated,
46      so maybe GM/Redi adjoint is now broken.
47    o seaice adjoint
48      * add AREA, HEFF, HSNOW as control variable
49        (should not change lab_sea results)
50      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
51    o pkg/seaice:
52      * added computation of saltFlux in seaice_growth;
53        For time being, sea ice salinity is assumed constant
54        contribution of snow flooding to freshening of sea ice is neglected.
55        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
56        defaults to 0.0 in order to maintain backward compatibility.
57        Typical values for SEAICE_salinity are 4 to 10 g/kg.
58      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
59      * added SEAICE_availHeatFrac, which specifies fraction of surface level
60        heat content used to melt or grow ice
61      * commented out cap of HICE: it helps keep ice thinner
62      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
63      * applied OBCS T/S mask to HEFFM sea ice mask
64    
65    checkpoint59d
66    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
67     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
68     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
69    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
70     and change default value of parameter "GM_Small_Number";
71     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
72       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
73       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
74    o pkg/ecco: cost function when applying pkg/smooth to controls
75    o pkg/ctrl: add forcingPrecond run time parameter
76    o pkg/seaice:
77     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
78     - fix bug in metric terms of u-equation in LSR solver (implicit part),
79       changes verification/lab_sea
80     - rearrange implicit part of u-equation in LSR solver to make it easier to
81       read, understand, and debug. This causes changes at the truncation level.
82     - fix (serious) bug in the boundary conditions (sign error in the implicit
83       part) of the LSR solver. Changes all LSR results.
84     - fixed problem with HSNOW initialization to avoid thick snow when AREA
85       is initilized with small values - does not change lab_sea results.
86     - added HsnowFile initialization capability
87    o pkg/smooth: addition to model/src and pkg/ctrl so allow
88     initialization of pkg/smooth and application to control vector
89    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
90    o dependencies: pkg/profiles requires pkg/cal
91    o pkg/profiles:
92     - added option ALLOW_PROFILES_GENERICGRID
93         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
94         that interpolation information (grid points and coefficients) is provided
95         within the netcdf input files.
96         -> sample matlab scripts can be found in MITgcm_contrib/gael
97         that allow you to prepare netcdf input files.
98     - also modified: cleaner include statements, cleaner error print statements,
99       cleaner stops when error, and more tests of the netcdf input files consistency.
100    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
101    o pkg/seaice:
102     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
103       requires a new routine: seaice_diagnostics_fill.F
104     - make sure that seaice does not move if not forced (pressure replacement
105       method, Hibler and Ip, 1995), changes results
106     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
107     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
108       It is turned off by default (=-1.), because it changes the results.
109     - make it possible to read AREA from a file, too.
110    
111    checkpoint59c
112    o add S/R and diagnostics for oceanic mixed-layer depth
113    o move GMRedi call after all vertical mixing schemes (including KPP)
114    o pkg/thsice:
115     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
116      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
117    o pkg/obcs:
118     - bug fix for balance code
119    o pkg/seaice:
120      - allow values of SEAICE_elasticParm > 1
121      - add new parameter SEAICE_evpTauRelax as an alternative
122        to SEAICE_elasticParm
123      - make lsr boundary conditions free slip (by default), changes result
124      - add code for no slip boundary conditions for lsr
125      - set minimum of zeta to zero (and not 4e8) (changes results)
126      - add a cap on AREA after advecting AREA if seaice_growth is not called
127    o change calculation of Visbeck K:
128      - no longer depend on tapering scheme; instead, compute slope (limited
129        by GM_maxSlope). this is equivalent to what was comuted before with
130        clipping or linear tappering.
131      - fix vertical averaging (wrong by 1/2 level)
132      - leave the old version (but will not be maintained) within
133        #ifdef OLD_VISBECK_CALC / #endif
134      - update output of exp. ideal_2D_oce
135    o change error catch in calc_r_star to improve vectorization
136    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
137      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
138    o adjoint:
139      Re-organized adjoint checkpointing according to Matt Mazloff
140      (but with modifs/completions/cleanups)
141      Storing is now bundled into large arrays to optimized I/O
142      (and second step in cleanup of the_main_loop)
143    
144    checkpoint59b
145    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
146      - export/import (between ocean & coupler) fields needed for ocean DIC.
147    o pkg/seaice:
148      - get rid of three more exchanges seaice_calc_viscosities (required
149        different loop boundaries in seaice_lsr and seaice_ocean_stress)
150      - bug fix in seaice_ocean_stress (update of lab_sea required)
151      - reduce loop boundaries to necessary minimum also in seaice_evp
152      - go back to the old way of computing deltaC/Z as the adjoint likes that
153        better
154    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
155      passive tracer to an Age Tracer) + update output.txt
156    o pkg/exf:
157      - implement A-grid / C-grid selection for wind-stress input files.
158      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
159      for now, in exf_bulk_largeyeager04.F only :
160      - change implementation for case where windspeed + 2. components wind-stress
161        are read-in. AND use rhoConstFresh to convert evap.
162    o pkg/seaice:
163      - use correct EXCH_UV for wind-forcing (on A-grid).
164      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
165        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
166    o pkg/exf:
167      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
168      EXF_INTERPOLATION:
169      - merge global_with_exf/code version of exf_interp_read.F
170        to the main code ;
171      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
172        reading the file ; Important: This options needs to be defined to recover
173        previous code.
174        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
175      - no longer loose real*8 precision along the way when using exf_iprec=64.
176    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
177      - change discretisation of evp-solver in order to avoid another exchange
178        (changes lab_sea) and clean up a little
179      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
180        help the adjoint (this also changes the results slightly)
181      - add a few "_d 0" where they had been missing in seaice_evp.F
182      - cleaning up: remove unused seaice_calc_rhs.F
183    o pkg/exf: some cleaning-up:
184      - change various "constants" into runtime parameters
185      - cleaned-up Large&Yeager04 routine which should eventually
186        replace exf_bulkformulae.F (changed names of S/R and CPP)
187        and merged various ALLOW_ATM_WIND options
188     only used with thsice pkg (in thsice_get_exf.F):
189      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
190        which are used when useStabilityFct_overIce=TRUE (= the default)
191      - change default values of ice & snow emissivity and scale downward LW
192        by ice & snow emissivity.
193    o pkg/thsice:
194     fix few little problems, in thsice_calc_thickn.F:
195      - growth vertically (and not laterally) if iceFrac == iceMaskMax
196      - melt only laterally if hIce < hThinIce (as the comments say)
197      and in thsice_extend.F:
198      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
199      - start to form ice as soon as the minimum ice-volume is reachable.
200     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
201      and cpl_aim+ocn
202    o pkg/kpp
203     - move computation of surface related input fields to KPP into a new
204       subroutine kpp_forcing_surf.F
205     - remove wrong (within bi,bj loops) EXCH calls.
206     - little cleaning (add argument myThid in last position, cvs header ...)
207     - for now, fix conservation problem by exchanging KPPviscAz (may not
208       be the best fix)
209    o pkg/seaice
210     - check for inconsistent evp parameter/cpp-flag combination
211     - remove leftover errIO flat for obsolete name list error handling
212    o OpenAD
213     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
214    
215    checkpoint59a
216    o pkg/seaice: some parameter clarifications and a little bit of clean up
217    o pkg/thsice: rename run-time parameters:
218       himin       -> hIceMin
219       himin0      -> hThinIce
220       hihig       -> hThickIce
221       i0          -> i0swFrac
222       transCoef   -> bMeltCoef
223       frac_energy -> fracMelting
224      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
225       with default values (for now) that do not change the results.
226      remove old version of thsice vars advection in pkg/seaice.
227    o in FFIELDS.h:
228      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
229      - make pLoad & sIceLoad always available (but still only used if
230         ATMOSPHERIC_LOADING is #define).
231    o pkg/kpp: replaced _KPP_RL with _RL
232    o bug fixes for vertical diffusivity computations when both KPP and
233        3D diffusivity arrays are used.
234    o pkg/seaice: fix bug in evp solver, while doing that
235      - change (improve?) discretization of stress computations for both
236        cgrid-lsr and evp solver
237      - add a new routine to compute strain rates
238      - the above changes lab_sea results
239      - add no slip conditions for evp solver (off by default), lsr-version
240        may follow
241      - fix exchange for shear at Z-points (does not change lab_sea)
242      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
243        (to force the user to pick a time step since there is not "safe" way
244        of choosing it)
245      - add principal stress diagnostics
246      - rearrange fields for evp a little to avoid having to call a: too many
247        exchanges and b: exchanges for stress trensor components which we do
248        not have.
249      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
250        of evp, complete rewrite for lsr case (latter is does not yet work
251        in all cases)
252    o pkg/kpp: add code to have mixing in shelf ice caverns
253      - add myThid to all kpp routines (long overdue)
254    
255    checkpoint59
256    o pkg/exf:
257      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
258        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
259      - move exf header files from lower_case.h to UPPER_CASE.h ;
260        add missing cvs Header & Name
261      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
262      - add namelist param. selectStressGridPosition, exf_monFreq
263      - retire many _CLIM routines, and remove data.exf_clim
264        + params moved to data.exf
265        + climsst, climsss now handled by exf_set_gen, i.e.
266          climss?period=0 refers to constant field,
267          climss?period=-12 to monthly forcing
268      - split up namelists in data.exf
269    o pkg/seaice:
270      - remove seaice_exch and seaice_exch_uv
271      - remove superfluous exchange of theta
272      - add myThid to seaice_budget_ocean/ice
273      - add new interface for atmospheric wind forcing (C-grid only)
274        + new routine
275        + two new field (taux, tauy for stress over ice)
276        + removed one global field (DAIRN) for C-grid case only
277    o pkg/thsise
278      - 2nd set of modifs for thsice adjoint in conjunction with exf
279    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
280    
281    checkpoint58y_post
282    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
283      vertical diffusivity, similar to that in MOM4; turned on using
284      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
285      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
286    o Added capability for 3D specification of background vertical diffusion
287      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
288      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
289      "data" file that contains the 3D vertical diffusivity coefficients.
290    o ice dynamics (pkg/seaice) with thsice thermodynamics:
291      - add code within pkg thsice to advect & diffuse sea-ice fields
292      similar to (and will replace) what has been added in  seaice_advdiff.F,
293      but: - conserving Mass, Heat & Salt.
294           - better when using non-linear advection scheme (not yet fully tested)
295           - can also be used in atmospheric set-up (for now, only the diffusion).
296    
297    checkpoint58x_post
298    o IO option for global-file compact format:
299      - add options when generating topology (utils/exch2/matlab-topology-generator)
300      - add I/O capability (pkg/mdsio).
301      - adapt utils/matlab/rdmds.m to read this format.
302      for now long-line format not yet supported by pkg/mdsio (& exch2).
303    o shelfice: add a few diagnostics
304    
305    checkpoint58w_post
306    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
307      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
308      (and replace horiVertRatio in NH code).
309      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
310                         and tutorial_plume_on_slope (sensitive to truncation)
311    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
312      directly to drive seaice model (C-grid only)
313    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
314     - reintroduce computation of wind from stress,
315     - compute tau (in exf_bulkformulae.F) from windstress averaged to
316       mass points to avoid tau = 0
317     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
318    o rdmnc.m: make it work with "global" files created with gluemnc
319    o rdmnc.m : some improvements in dealing with singleton dimension
320      (tested on all testreport mnc output files).
321    o genmake2: disable pkg/profiles if netcdf test fails.
322    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
323    o move call to cal_readparms up to make calendar parameters/variable available
324      to all packages
325    
326    checkpoint58v_post
327    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
328      useDynP_inEos_Zc tested.
329    o pkg/exf: changes to properly interpolate/mask/scale initial fields
330    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
331      and portions thereof.  See read_cs.txt for description and examples.
332    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
333      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
334      following the great-circle arc between those 2 points.
335    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
336      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
337    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
338     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
339     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
340     - still needs work (not working with some options ; efficiency to improve)
341       and serious testing.
342     - use this scheme for temperature & salinity in 2 advection test exp.:
343       advect_xy & advect_xz, respectively.
344    
345    checkpoint58u_post
346    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
347    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
348    o testreport: add option "-skipdir" to skip some test.
349    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
350      momentum calculation.
351    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
352    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
353      remove checkpoint.F and the_correction_step.F (no longer used);
354      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
355    o add option (linFSConserveTr) to correct for tracer source/sink due to
356      Linear Free surface
357    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
358    o pkg/thsice: fix reading mnc-pickups
359    
360    checkpoint58t_post
361    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
362    o pkg/mdsio:
363     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
364       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
365       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
366     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
367     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
368       either MDS_READ_FIELD or MDS_WRITE_FIELD )
369     - new S/R (to replace MDSWRITEMETA), which allows to write more
370       informations (variable names, time ...) to meta files.
371     - modify rdmds.m to give back the meta file content.
372    o pkg/diagnostics: change vertical interpolation to be safer, and more
373       flexible (define p-levels to interpolate to in data.diagnostics);
374      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
375       diagnostic pointer.
376    o pkg/seaice: more cleaning up of seaice_growth, added many comments
377    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
378    o fix multi-category seaice:
379     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
380       SEAICE_MULTICATEGORY
381     - fix short wave heat flux
382    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
383       and allow to use EVP solver. Change forward lab_sea: test both EVP
384       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
385    o Initial check-in of lab_sea adjoint
386      (very similar to natl_box_adjoint/code_seaice)
387      * used C-grid and EVP solver
388      * used KPP, GM/Redi
389      * uses inAdExact=.TRUE.
390      * gradient checks fail for both ADM and TLM
391        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
392        f.d. gradients actually seem more problematic than ADM, TLM gradients;
393        issue is related to forward mismatch between g77 an ifort
394    o pkg/seaice: overhaul of thermodynamics
395     - growth.F and groatb.F are replaced by new routine seaice_growth.F
396     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
397     - move a few global fields out of SEAICE.h into seaice_growth.F and
398       make them 2D (FICE/QNETO/ ...)
399     - remove FO (it is the same as QNETO)
400     - introduce a few local fields to avoid modifying external fields such
401       as atemp, etc.
402    
403    checkpoint58s_post
404    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
405      changed exf_set_gen.F so that
406        genperiod=0 means input file is one time-constant field and
407        genperiod=-12 means input file contains 12 monthly means
408    o CG2D: use pre-computed solver main-diagonal (stored in common block);
409      this affects truncation error ; generate new output file for exp. which
410      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
411        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
412        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
413        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
414        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
415        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
416    o start implementation of deep-atmosphere and anelastic formulation
417    o verification: remove 2nd copy of input files and use script "prepare_run"
418      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
419    o mom_common/vecinv/fluxform: fix a few initialisation isssues
420    o profiles: fix for multithreaded case
421    
422    o diagnostics: rename few diags:
423      s/'PRESSURE'/'RCENTER '/g
424      s/'TICE    '/'oceFreez'/g
425      s/'TAUX    '/'oceTAUX '/g
426      s/'TAUY    '/'oceTAUY '/g
427      s/'SWFLUX  '/'oceQsw  '/g
428      s/DIFx/DFxE/g
429      s/DIFy/DFyE/g
430      and add few ocean-forcing diagnostics:
431      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
432    o modifications to pkg/seaice/growth.F and budget.F, which change results of
433      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
434      as actual snow thickness.  It now refers everywhere to effective snow
435      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
436    
437    checkpoint58r_post
438    o modifications to pkg/seaice/growth.F, which change results of
439      lab_sea experiment: fixes pertain to melting snow over open water, to
440      masking EVAP under sea ice, and to using the correct AREA variable for
441      computations of EVAP, PRECIP, HSNOW, and GHEFF
442    o add ability to read bathy, salt, and theta using MNC (off by def)
443    o add flooding algorithm and advection of HSNOW for pkg/seaice;
444      both are turned off by default and do no change any results
445    o seaice advection with pkg/thsice: a step toward the use of non-linear
446      advection scheme, but #ifdef or commented out for now (requires more EXCH).
447    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
448      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
449      in natl_box (affects results @ truncation level: update output.txt)
450    o multi-threading and IO:
451      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
452      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
453        (needed to work with SingleCpuIO): tested in all verif. exp.
454    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
455      affects the results (but none of the verification test uses this scheme).
456    o Adding some pkg/diagnostics capability to pkg/seaice
457      (will certainly be subject to changes)
458    o ctrl: adding new control variables:
459      lwflux, lwdown, evap, snowprecip, apressure, runoff
460    
461    checkpoint58q_post
462    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
463      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
464      high_res_cube configuration by 4% on Columbia.
465    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
466      add (in global_with_exf/code) a version of EXF_INTERP_READ without
467      dynamical allocation (seems to work in multi-threaded).
468    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
469      single CPU io) so that TAF does not have to see EESUPPORT.h
470    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
471    
472    checkpoint58p_post
473    o obcs: stop if obcs is used with useCDscheme = .true.
474    o shelfice:
475     - fix a sign error so that no slip at shelfice interface works
476     - remove stop for combination non-hydrostatic code and shelfice. That does
477       not mean, that the results are correct, but at least they are numerically
478       stable
479    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
480    o added adjoint exch routined for all exch*3d* routines
481      and updated flow directives
482    
483    checkpoint58o_post
484    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
485      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
486    o change controling S/R for writing pickup file (new S/R do_write_pickup)
487      and clean-up reading/writing of pickup files.
488    o fix local version of read/write pickup (NH part) in rotating_tank/code
489    o simplify EXCH interface:
490     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
491     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
492    o added the regrid package
493    o shelfice:
494     - add a simple boundary layer scheme to reduce noise
495     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
496    
497    checkpoint58n_post
498    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
499       local variable (not in common block).
500    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
501      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
502      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
503        to work with SingleCpuIO.
504    o add "_d 0" to real constant of pkg/cfc subroutines ;
505       update exp. cfc_exemple & tutorial_cfc_offline output files.
506    o multi-threading and IO:
507      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
508        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
509      - barrier before and after reading.
510      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
511      - avoid using MDS_WRITELOCAL for LAND pkg output.
512      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
513        common-block variables ; Allows multi-threading with master-thread IO.
514    o change default MAX_NO_THREADS from 32 to 4 ;
515      and stop cleanly when MAX_NO_THREADS is too small.
516    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
517    
518    checkpoint58m_post
519    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
520       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
521    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
522       keep global_ocean.90x40x15 (for AD testing) with former secondary test
523       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
524    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
525        add MITgcm_tutorials (= code + all the tutorials)
526    o ecco, option to compute cost for total ssh (mean+anom)
527    o consistent with addition of ptracer and ssh in pkg/profiles
528    o profiles: adding ptracer and ssh
529    o testreport: change multi-test output-file name
530      (from output.txt.{name} to output.{name}.txt)
531    o profiles: now ok for mutli-tiles case
532    o seaice: add 4 parameters for different advection schemes for area,
533      (effective) seaice thickness, enthalphy, and snow height. Their default
534      is the standard parameter SEAICEadvScheme
535    o calc_gw:
536     - add cosFacU in zonal viscous flux (harmonic.visc.).
537     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
538       of tutorial_plume_on_slope.
539    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
540    o calc_gw: true flux-form, account for horizontal grid spacing.
541      update rotating_tank results, but not plume_on_slope (affected at
542      truncation level, 11 digits).
543    
544    checkpoint58l_post
545    o calc_gw:
546     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
547     - remove side-drag for now (need to fix it); update plume_on_slope results.
548     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
549    o commit code to make SST/SSS weights spatially variable
550      (based on either variable in-situ or variable initial T/S weights)
551    o pkg/ecco:
552      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
553        now based on horizontally varying weights wthetaLev, wsaltLev
554      * cost_averagesflags now returns year indices in addition to day, month
555      * sflux balance is performed on annual basis
556        (sflxumm, sfluxmm2, bal_sfluxmm)
557      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
558        including separate counting and multipliers
559    o pkg/rbcs
560      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
561    
562    checkpoint58k_post
563    o testreport:
564     - always build in dir. "build" (if not there, mkdir build instead of building
565       & running in input)
566     - run in dir run (if it exists), in build otherwise.
567     - call prepare_run (if input/prepare_run exists)
568     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
569    o pkg/exf modifications to interpolation and rotation routines for more
570       reasonable treatment of North Pole singularity: for tracers North Pole
571       value is set to northernmost zonal-mean value, for zonal velocity it is
572       set to zero, and for meridional velocity it is set to northernmost value.
573    o pkg/exf/exf_check_range.F
574     - add tile index to diagnostics and move stop statement to the very
575       end of the routine.
576    o pkg/diagnostics: (diagnostics_main_init.F)
577      define title of isomorphic variables according to the current config.
578    o pkg/thsice with pkg/seaice dynamics:
579    - fix domain of computation (interior only, required for exf) and do exchanges
580    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
581    o towards a standard way of dealing with multi-threading in MONITOR
582      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
583    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
584       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
585    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
586    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
587    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
588       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
589    o tracer advection:
590     - clean-up and simplify calc_common_factors.F
591     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
592       advection subroutine (but still not used within DST advection S/R)
593    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
594    
595    checkpoint58j_post
596    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
597      from file (collects calls previously in FORWARD_STEP)
598    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
599    o adjoint store dir. adjusted accordingly
600    o genmake2
601      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
602    
603    checkpoint58i_post
604    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
605      on wind stress (SEAICEstressFactor defaults to 1.)
606    o Total number of Timers is finite (<=40): comment out 2 non-essential one
607      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
608    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
609      on CS-grid: no longer loosing mass.
610    o exf & curvilinear-grid: no longer modify longitude xC & xG.
611    o pkg/ggl90: fix sloppy output and fix a bug
612    o pkg/seaice: added SEAICEuseEVPpickup parameter
613      - Set to false in order to start EVP solver with
614        non-EVP pickup files when using SEAICEuseEVP
615      - fix sign error in diffusion in seaice_calc_rhs
616    
617    checkpoint58h_post
618    * Modifications for bottom topography control
619      o replace hFacC by _hFacC at various places
620      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
621      o add non-self-adjoint cg2d_nsa
622      o update autodiff support routines
623      o re-initialise hfac after ctrl_depth_ini
624      o works for 5x5 box, doesnt work for global_ocean.90x40x15
625    * Adding verification for 5x5 box (4-layer) bottom topography control
626    
627    checkpoint58g_post
628    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
629       used for mean seasonal cycle, mean diurnal cycle); add an example
630       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
631    o pkg/ggl90:
632      - add parameter (minimum surface kinetic energy)
633      - fix bug (avoiding division by zero)
634    o couple pkg/thsice to pkg/seaice:
635      - modify advection in seaice to accomodate new scalar fields to be advected
636      - only muliDimAdection scheme work with seaice/thsice
637      - mapping of thsice-variables to seaice-variables, back and forth
638      - does not break the verification experiments, but does not give the
639        desired results either
640    o pkg/seaice
641      - make (default) second order advection a bit less confusing?
642    
643    checkpoint58f_post
644    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
645      to pkg/seaice):
646      - new routines thsice_map_exf and thsice_get_exf provide the interface
647      - add an additional formal parameter to thsice_solve4temp
648    o pkg/exf:
649      - add new fields wspeed, snowprecip (to be able to couple to thsice)
650      - correct Stefan-Boltzmann constant
651      - new parameter for longwave surface emittance
652      - separate some stuff from exf_bulkformulae into new routines  
653        exf_radiation, exf_wind
654      - add new parameters and constants: longwave emissivity for ocean, ice
655        and snow, evaporation parameters over ice
656      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
657        either wind from stress or stress from wind
658    o pkg/thSIce:
659    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
660    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
661       and THSICE_CALC_THICKN
662    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
663    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
664      to make debugging easier.
665    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
666    o pkg/bulk_force:
667      - clean-up comments and parameters ;
668      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
669    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
670      generate new output for test-experiment: aim.5l_cs.thSI
671    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
672      testreport accordingly
673    
674    checkpoint58e_post
675    o SEAICE_CGRID adjoint done
676    o R_STAR adjoint implemented.
677      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
678      * need to sort out init. of h0facc, etc.
679    o Make pkg/profile fully independent of ecco,cost, etc. stuff
680      to be able to use it in pure forward.
681    
682    checkpoint58d_post
683    o upgrade simple test-experiment to tutorial example:
684     step.1: duplicate the experiment and (step.2) will remove the old copy.
685      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
686      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
687      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
688      tutorial_global_oce_biogeo    <- copy of dic_example
689      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
690      tutorial_plume_on_slope       <- copy of plume_on_slope
691      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
692      tutorial_global_oce_optim     <- empty for now (David ?)
693      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
694     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
695    o correct a sign problem in cost_scat.F
696    o obcs and ptracers: fix boundary conditions for advections schemes
697      with larger stencil
698    o thsice adjoint: start
699    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
700      completeness
701    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
702      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
703    o ptracers adjoint:
704      * avoid extensive recomputatations
705      * fix missing re-init. of gptr (missed by TAF)
706    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
707      me to turn off the excessive output to STDOUT that this package produces
708    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
709      and add those terms in Vector-Invariant formulation.
710    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
711      if the control period (xx_hfluxperiod etc) is 0
712    o in profiles pkg, clean routines and fix details
713    o in ecco pkg, reading ssh data:
714      fix problem in case the model does not start at iter0=0
715    o fix mnc-pickup/restart for ptracers
716    o new package prifiles:
717      code to compute profile-based cost by Gael Forget
718      (modifs in ecco, ctrl, autodiff)
719    o Benign bug fix in initialization (spotted by M. Mazloff) of
720      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
721    
722    checkpoint58c_post
723    o adjoint: finish NLFS adjoint and provide reference output in
724      verification/global_ocean.90x40x15/results_ad_nlfs
725    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
726      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
727      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
728      with SEAICE_CGRID defined.
729    o move calendarDumps from "data" to "data.cal" and clean-up the code
730      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
731    o add useEXF & useCAL flags (for now, set in hard-coded way)
732    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
733      (were missing in NH mode, and wrong in quasihydrostatic mode).
734      waiting for Chris updated version of calc_gw to add those CALLs.
735    o fix bug in quasihydrostatic S/R ;
736      add a test for this option: global_ocean.90x40x15.qshyd
737    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
738      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
739    o add on/off flag useOffLine for package OFFLINE
740    o seaice:
741      - modify advection so that it works also on the C-grid
742      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
743        problem in multi-tile runs with C-grid
744      - add flags for clipping ice velocities and/or masking solver forcing
745      - fix drag (ocean on ice) formulation and a bug that caused noise in the
746        C-grid solver
747      - added a few comments to seaice_diffusion.F
748      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
749        are now exclusive)
750      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
751        required re-ordering the code a little:
752       + make DAIRN global variable (defined in SEAICE)
753       + move computation of the viscosities eta and zeta into a new separate
754         routine (because I need to recompute them in seaice_ocean_stress.F)
755    
756    checkpoint58b_post
757    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
758      update output.txt of exp. aim.5l_cs.thSI
759    o various mnc cleanups and improvements:
760      + shrink lookup tables by factor of ~4
761      + better error reporting when running out of lookup space
762      + able to handle longer path/file names (up to 500 chars)
763    o adjoint:
764      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
765      - TBD: "hidden" mom_vecinv recomp. in dynamics
766    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
767     (allow to differentiate between forcing components using new integer flags:
768      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
769     and add new flag to put Dissipation tendency out of Adams-Bashforth.
770    o ecco
771      - enable trend removal from SSH anomaly obs.
772    o adjoint
773      - a fix for PmEpR when #undef EXACT_CONSERV
774      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
775      - try to fix "hidden" recomp. in forward_step for NLFS
776        (NLFS seems broken sometimes after I checked it in)
777    o seaice:
778     - add c-grid version of the dynamic solver:
779       + three new routines that are the c-grid substitute lsr, dynsolver
780         and ostres
781       + put a few fields that were local to dynsolver into global common
782         blocks, so that I can move the computation of stresses etc into
783         seaice_lsr (saves coding but may break the adjoint).
784     - replace more hardwired parameters by runtime parameters
785     - add ice masks that mask the rhs of the implicit solvers where there
786       is no ice (commented out in seaice_dynsolver, because i am not sure
787       if this works properly), eventually this should replace the clipping
788       of ice velocities in seaice_dynsolver to +/-40cm/s.
789    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
790      include it only where its needed
791    o move balancing of fluxes before the call of external_forcing_surf
792    o seaice:
793      - correct units of turning angles (now they are really in degrees)
794      - move computation of GWATX/Y out of main routine into dynsolver
795      - initialize GWATX/Y in seaice_init
796    o Apply mask on Fresh-Water flux (needed for SSH forcing).
797      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
798    o seaice: add runtime flags for turning angles (default to zero)
799    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
800      and trend from exf forcing and ctrl control adjustments
801    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
802      (since checkpoint57x_post)
803    o change the default rotation period to 86164.s = the Earth rotation
804    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
805      and based on a reference stratification. Tested within hs94.cs-32x32x5.
806    o seaice advection: add code for choosing between the default (2nd order
807      central differences) and multiDim advection schemes provided by
808      pkg/generic_advdiff
809    o seaice:
810      - removed all references to SEAICE_GRID.h fields from
811        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
812        (cubed-sphere configuration will change a little)
813      - grid computations in seaice_init are obsolete now.
814      - cleaned up code a little so that is easier to read (hopefully).
815      - added new (better?) discretizations of default advection and diffusion
816        (turn on with SEAICEuseFluxForm)
817      - replace 1 in 3d global fields by kSurface in growth.F
818      
819    checkpoint58a_post
820    o seaice:
821      - bug fix in advect.F
822    o shelfice:
823      - separate shelfice load anomaly from pload (breaks with time
824        dependent forcing), => introduce constant field shelficeLoadAnomaly.
825        Its default is 0., but it may be computed more cleverly from (unknown)
826        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
827        done offline. A good approximation of the pressure load anomaly is
828        necessary to avoid large initial adjustment processes underneath
829        deep-reaching shelfice.
830      - small fix in ISOMIP shelfice_thermodynamics
831      - add more sophisticated thermodynamics of Hellmer (1989), this is
832        now the default
833      - give a few constants more intuitive names
834    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
835      if bulk formulae are used in long integration (especially EmPmR). Turn
836      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
837      if balancePrintMean, the imbalance that is substracted is printed to
838      STDOUT.
839    o fix bug (typo) in obcs_apply_eta.F
840    o add a new package shelfice which enables us to model the circulation
841      underneath shelf-ice with draughts of hundreds of meters.
842     - works
843     - to do: + include improved thermodynamics
844              + check whether kSurfC (from model/inc/SURFACE.h) can be used
845                instead of new field kTopC
846              + can we use topoFile, Ro_surf and existing code in ini_depth.F
847                instead of new field R_shelfIce and new code in ini_depth.F
848                and ini_mask_etc.F?
849              + adjust vertical mixing schemes?
850    o seaice pkg:
851     - add a cpp-flag to include a simple formula for a salinity dependent
852       freezing point of sea water at the surface
853     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
854       meridional stresses are now different (and hopefully correct)
855    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
856       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
857       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
858    o pkg/diagnostics: add options and parameters for regional-statistics
859       diagnostics ; define regions by reading a region-mask from a file
860       (might add other options later)
861    o pkg/bulk_force:
862     - add option and parameters to use AIM surface-flux formulae.
863     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
864       others forcing fields (defined in PARM05, parameter file "data") are loaded
865       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
866     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
867     - use the right EXCH call for uwind,vwind (to work on CS-grid).
868     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
869       and parameters (note: calcWindStress replaces .NOT.readwindstress).
870     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
871    
872    checkpoint58
873    o add "--embed-source" option to genmake2 which, when the supporting
874      tools can be compiled (as determined by genmake2) will turn on the
875      embed_files package which then embeds the entire MITgcm source code
876      (*.[fFhc] + Makefile) used for the build within the executable
877      - requested by CNH but off by default
878      - adds a paltry <9MB to the mitgcmuv executable in most cases
879      - only writes the output when useEMBEDSRC in eedata is true
880    o clean up 3-dim. relaxation codes:
881      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
882      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
883      * Thanks to Tom Haine for testing!
884    
885    checkpoint57z_post
886    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
887      affects output (@ truncation level) of exp. plume_on_slope ; updated.
888    o fix the pickup behavior for obcs in combination with ptracers
889    o fix a bug in ptracers_external_fields_load
890    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
891      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
892    o transfered surface NH pressure to eta field (if exactConserv).
893    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
894         and update lab_sea output.txt file.
895    o completing 3-dim. relaxation code: additional term
896         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
897      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
898      * At compile time, in "EXF_OPTIONS.h" set
899          #define  ALLOW_CLIMTEMP_RELAXATION
900          #define  ALLOW_CLIMSALT_RELAXATION
901      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
902          tauThetaClimRelax3Dim = 15552000.0,
903          tauSaltClimRelax3Dim  = 15552000.0,
904      * 3 cases:
905          1) Use a constant-in-time 3-dim. field
906          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
907          3) Real-time relax. to time-evolving prescribed field
908    o Adding Laplacian-type smoothness constraint on
909      initial and boundary (forcing) controls (ic, bc)
910      * enable at compile-time via
911        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
912      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
913      * Absolute scale somewhat unclear so far
914      * no area weighting was included since no other cost term does so far
915    
916    checkpoint57y_post
917    First step for a NLFS adjoint
918    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
919    o new init. routines for calc_r_star, calc_surf_dr
920    o still need to deal with ini_masks_etc
921    o testreport seemed happy
922    checkpoint57y_pre
923    
924    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
925    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
926    o add new offset feature to offline pkg (plus minor cleanup)
927    o cfc fixes for final year of integration
928    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
929      be in GCHEM_OPTIONS).
930    
931    checkpoint57x_post
932    o fix testreport Pb in multiple test experiment.
933    o cleanup our namelist syntax in verification:
934      - make it more F95 standards compliant (some work still needed)
935      - allows the vast majority of our tests to work with gfortran
936    o Non-Hydrostatic:
937     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
938     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
939    o Allow to apply AB on T,S rather than on AB(gT,gS):
940     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
941     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
942       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
943     - need a "clever" read_pickup to restart from the other AB formulation
944    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
945    o remove some unused variables (reduces number of compiler warnings)
946    o adjoint
947      * Disable useVariableViscosity for adjoint for time being
948        (there are a number of extensive recomputations)
949      * Initialize certain variables needed for adjoint
950    
951    checkpoint57w_post
952    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
953                 fix the singleCpuIO RS version of MDSWRITEFIELD
954       and add a WARNING if using globalFiles=T with multi-processors.
955    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
956      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
957    o tracer advection scheme:
958      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
959       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
960       was not very convenient).
961      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
962       (further tests needed for the implicit DST & Flux-Limiter schemes).
963    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
964      and sRef for convenience, handy, when you want to initialize
965      ptracers in a large domain with a constant non-zero value. Also,
966      untangle ptracers_init.F a little.
967    
968    checkpoint57v_post
969    o change dome exp. to use variable viscosity in side-drag terms.
970    o remove all the files from the cfc_offline test since they are now
971      incorporated into tutorial_cfc_offline which has been producing
972      identical results for a few days of testing
973    o add new parameter: sideDragFactor to enable half-slip-side BC
974      and change side-drag S/R to use viscosity from mom_calc_visc
975      (can switch back by setting sideDragFactor=0.); affects results at
976      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
977       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
978    o vorticity & strain are now computed without masking, to account for
979      no-slip-side BC in variable viscosity calculation ; mask is applied
980      anyway later on, before computing advection/coriolis terms.
981    o modify exp4 to test new obcs support for reading from external files
982      and for passive tracers
983    o fix behavior of ptracers_monitor when monitor output is written to a
984      netcdf-file; still not independent of monitor.F (writes in the same
985      file).
986    o change default value of tRef (put a uniform, meaningful value for ocean
987      & atmos) and initialize sRef (was missing, as Martin mentioned).
988    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
989      to be proportional to enstrophy dissipation length.  Thus,
990       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
991      This is now consistent with Smagorinsky and with the manual.
992    
993    checkpoint57u_post
994    o OBCS and PTRACERS: add open boundary support for passive tracers
995      - either use homogenous (pseudo) v.Neumann conditions or prescribe
996        OB-values from file; this is not different from the way theta and salinity
997        are treated
998      - however, Orlanski-radiation conditions are not supported, and the model
999        will stop if you use pTracers and Orlanski at the same time.
1000      - beefed up the rountine obcs_external_fields_load: now only those open
1001        boundary values are overwritten with values from files for which there
1002        are really files, otherwise the OB-fields remain untouched. This makes
1003        it possible to use different OBs at different ends of the domain (as
1004        with EXF)
1005    o reduce number of exch calls in shap_filt (s2).
1006    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1007      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1008    
1009    checkpoint57t_post
1010    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1011    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1012      same truncation, independent of the face number: affects affects several
1013      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1014    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1015      note that biharmonic viscosity + no-slip was not tested in any experiment.
1016    o fix bug in non-linear free-surf side-drag ; generate new output for
1017      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1018    o make mnc honor the writeBinaryPrec flag for most kinds of output
1019    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1020    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1021      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1022    o add brackets in multi-terms sum to get same truncation, independent of
1023      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1024      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1025    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1026      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1027      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1028      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1029      Suggested values of viscosity parameters found in mom_calc_visc.
1030      Many new viscosity diagnostics available.
1031    
1032    checkpoint57s_post
1033    o Add clearing-house for viscosity calculations, mom_calc_visc and
1034      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1035      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1036      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1037      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1038      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1039      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1040      ViscAhStrain and viscAhTension are now retired.
1041    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1042    o In response to JMC's bug report, genmake2 now ignores any soft-links
1043      that it finds in the *current* directory when searching for files.
1044      Soft-links found in any other source directories will still work as
1045      they did before.
1046    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1047      a C routine to unlimit the stack size
1048    o mnc-ify pkg/aim snapshot vars
1049    o mnc-ify pkg/land as requested by Daniel
1050    o various changes to mnc including:
1051      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1052      - output can now be grouped so that all files within a group
1053          change the ITER portion of their names in lock-step together
1054      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1055          and works with both EXCH1 and EXCH2 (but needs more testing)
1056      - writing works for all verification test cases w/ g77 on Linux
1057    
1058    checkpoint57r_post
1059    o make MNC variable initialization happen earlier
1060    o add diagnostics for (almost) each term of the momentum Eq.
1061    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1062    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1063    o remove MINIMAL_TAVE_OUTPUT option ;
1064      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1065    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1066      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1067    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1068    o add time-dependent SST, SSS control
1069    o cost terms in ecco/ modularized (new cost_generic.F)
1070    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1071    o new infrastructure for seaice model vs. obs misfits in seaice/
1072      * driver from the_main_loop.F is seaice_cost_driver.F
1073      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1074      * gradient check in Exp. 6a of natl_box_adjoint/
1075    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1076      (see README file)
1077    
1078    checkpoint57q_post
1079    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1080    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1081      - bug was reported by Jean-Michel and Ian Fenty
1082    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1083      update exp. cpl_aim+ocn output.
1084    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1085      Needed for high-res. runs with large global files
1086      to be able to limit tapelev size
1087    o Changed some tests for adjoint:
1088      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1089      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1090      * global_ocean.90x40x15/ back to default 3-level checkpointing
1091    o Modifications to enable scripted COMMON to MODULE conversion
1092      * verification/OpenAD/code/ has necessary scripts and description;
1093      * converts, compiles and runs successfully;
1094    
1095    checkpoint57p_post
1096    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1097    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1098      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1099    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1100    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1101      (was already the case for dissipation with mom_vecinv,
1102       and also the case for grad.PhiHyd when staggered-timeStep)
1103      This will allow to put dissipation out-off the AB time-stepping.
1104     Unfortunately, affects truncation error. Update output of exp. that "fails"
1105      (cg2d matching number) and leave the others for later: front_relax(10),
1106      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1107      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1108    
1109    checkpoint57o_post
1110    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1111      (2) its ready to be documented during the 20050801 DocFest
1112    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1113      for ideal_2D_oce and lab_sea on linux_ia32_g77
1114    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1115      in global1x1_tot/code_seaice_adj to access indices 32, 33
1116      (worth another tag)
1117    
1118    checkpoint57n_post
1119    o adding precip control xx_precip 32
1120    o adding swflux control xx_swflux 33
1121    o Replacing 10 forcing penalty cost routines by 1 generic.
1122    o Implementing partitioning in time-mean and variable adjustment
1123      for atmos. state.
1124    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1125    o in natl_box_adjoint:
1126      * updated exp 1 to 10
1127        (but does not have time-mean vs. variable split results yet)
1128    o updated global1x1/*_seaice_adj/
1129      to incorporate latest changes
1130    o enable useSingleCpuIO for mdsio vector routines
1131      (applies in particular to tapelev I/O)
1132    o removed inefficient K-loop in all active_file*control*.F
1133    
1134    checkpoint57m_post
1135    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1136      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1137    o pkg/exch2: filling of face-corner halo regions is optional
1138      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1139    
1140    checkpoint57l_post
1141     tag before updating tutorials (pre-release-2)
1142    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1143       for output and interpolation of input fields onto model grid)
1144    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1145       Affects results of exp. rotating_tank ; update output.txt.
1146    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1147          and taking the square quantity and/or using a fraction-weight field.
1148    o fix aim_diagnostics_init.F mate numbers.
1149    o add mnc output capability to diagnostics/diagstat and update
1150      our cvsignore files for the ACSII output generated
1151    
1152    checkpoint57k_post
1153    o lab_sea now uses diagnostics package and provides a suite of
1154      new EXF diagnostics output.
1155    
1156    checkpoint57j_post
1157    o exf
1158      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1159        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1160        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1161      * extended diagnostics output
1162        - now includes all EXF variables
1163        - hs, hl moved to common block
1164        - separate S/R for diagnostics, called after ctrl vector is added
1165        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1166        - EXFqnet contains true Qnet (i.e. includes qsw)
1167      * updated verif. lab_sea, global_with_exf
1168      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1169        to ensure that diagnostics sees a true EXFqnet
1170    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1171    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1172      several times with different frequencies.
1173    o mnc-ify the thsice package as requested by Daniel Enderton
1174      - the monitor--MNC output needs work
1175      - many attributes need to be added (most are currently blank)
1176    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1177      - many attributes need to be added (most are currently blank)
1178    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1179    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1180    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1181      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1182         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1183    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1184     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1185    
1186    checkpoint57i_post
1187    o Diagnostics package was changed: diagnostic allocation is now deactivated
1188      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1189    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1190      add 1rst Order upwind vertical Shear.
1191    o add a quick fix for A/B checkpointing in OFFLINE mode
1192    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1193      end-run around the C/Fortran linking horror in eesup/src/timers.F
1194    o added pkg/runclock: allows user to terminate run based on wall clock
1195    o added non-hydrostatic scaling parameter: nh_am2
1196    o pkg/my82: futile attempt to make results compiler-independent by adding
1197      some "_d 0", etc. no effect.
1198    o for mnc output, fill the 'T' coordinate var with myTime and create a
1199      separate 'iter' variable for iteration count
1200    o pkg/diagnostics:
1201      add new capability: output of Global/Regional & per-level statistics ;
1202      tested against monitor output (including land & thSIce) on various exp.
1203    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1204    
1205    checkpoint57h_done
1206      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1207      data.diagnostics, data.gchem, data.ptracers) is done.
1208    
1209    o pkg/diagnostics: prepare for Global/Regional statistics.
1210      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1211    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1212      and rename it: DIFFERENT_MULTIPLE
1213    
1214    checkpoint57h_post
1215    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1216    o pkg/diagnostics: change output frequency, now in seconds (instead
1217      of Nb of iterations). This requires to change data.diagnostics.
1218    checkpoint57h_pre
1219    
1220    o in mnc, let the user create the output dir if both mnc_outdir_date
1221      and mnc_outdir_num are false
1222    o add fflags() to pkg/diagnostics which allows one to specify, on a
1223      per-file basis, the file precision [default behavior is unchanged]
1224    o added diagnostics to pkg/kpp, including computation of mixed layer
1225      depth based on a temperature/density criterion
1226    o updated verification/natl_box to test the new pkg/kpp diagnostics
1227    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1228    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1229    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1230      not mnc -- this mistake was found by JMC and is now corrected
1231    
1232    checkpoint57g_post
1233    o add Adams-Bashforth 3rd Order time stepping:
1234      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1235      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1236    checkpoint57g_pre
1237    
1238    o make lambda[Theta,Salt]ClimRelax spatially varying
1239      (default remains spatially uniform constant based on tau)
1240    o added new control variables
1241      * init. uVel, vVel, etanN
1242      * lambda[Theta,Salt]ClimRelax
1243    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1244      (suggested by G. Forget)
1245    
1246    checkpoint57f_post
1247    o add parameter "baseTime" = model base time = time at iteration zero
1248      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1249      account for baseTime shift
1250    o move Coriolis arrays from PARAMS.h to GRID.h
1251    checkpoint57f_pre
1252    
1253    o mnc-ifying the seaice package
1254    o introduced an alternative length scale calculation for use in the limiting
1255      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1256    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1257    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1258      as well as grad(vort3).  Made it compatible with both approximate form
1259      for the cubed sphere and full form of these gradients.  Added flag
1260      useFullLeith to select between approximate and full form.  
1261    o add "d0" in getcon.F to reduce differences between compilers/platforms
1262      update output.txt of exp. fizhi-gridalt-hs
1263    o change port_rand funtion to allow to set the seed.
1264    o fix obscure MNC bug involving conversion between reals and integers
1265      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1266        new version is now more standards-compliant
1267    o adjoint-related modifications
1268      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1269      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1270      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1271    
1272    checkpoint57e_post
1273    o Adding eddy stress controls a la Ferreira et al.
1274    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1275    
1276    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1277      update output.txt of exp. fizhi-gridalt-hs
1278    o add more "Z" dimensions and associated coordinate vars to MNC
1279    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1280    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1281      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1282      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1283      months and years.  Requires pkg/cal.
1284    o diagnostics: add pickup functionality
1285      - off by default for backwards compatibility
1286      - current version only uses MDSIO -- MNC will be added
1287    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1288    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1289    
1290    checkpoint57d_post
1291    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1292    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1293      output from the diagnostics package
1294    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1295    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1296      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1297    o add coordinate variables to the MNC output from the diagnostics package
1298    o change MNC-flags default value: true when useMNC=TRUE
1299    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1300      the ability (off by default) to read the grid information using MNC
1301    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1302    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1303    o do snap-shot diagnostics at the middle of the time-interval (instead of
1304      at the end).
1305    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1306      new test for AIM with thSIce + slab-ocean
1307    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1308    o move state variable diagnostics to the beginning of the time step ;
1309      (note: still needs some work specially for snap-shot diagnostics)
1310      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1311    
1312    checkpoint57c_post
1313    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1314    o generate new output.txt files on faulks with g77 & the new -ieee option
1315    checkpoint57c_pre
1316    
1317    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1318      update output.txt of exp. global_ocean.90x40x15
1319    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1320      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1321    o add saltFlux(+File) forcing capability with periodicExternalForcing
1322    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1323    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1324    o improvements for the MNC output from DIAGNOSTICS:
1325      - correct handling of the unlimitied dimension
1326      - all dims now have associated coordinate variables
1327      - variables located at U, V, and Corner ("Z") points are now written
1328        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1329        *all* data points are output
1330    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1331    o added pkg/seaice/seaice_monitor.F
1332    o mdsio_readfield.F can now read files visible only to master MPI process.
1333    o pkg/seaice: some test code for ice-modified ocean stress
1334    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1335      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1336      spurious negative numbers for precipitation and humidity.  Will cause
1337      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1338    o pkg/ctrl/
1339      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1340        May be enabled via doPackDiag
1341      *  introduce z-scaling of
1342         + gradient (doZscalePack) and
1343         + control (doZscaleUnpack)
1344    o pkg/mdsio/
1345      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1346      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1347    
1348    checkpoint57b_post
1349    o simplify options in diagnostics_fill arguments (remove weird combinations)
1350    o fix MNC coordinate variables so that they now contain per-face index
1351      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1352      general, EXCH2 grids are only aligned to a "local" coordinate system
1353    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1354    o Implement instantaneous output within pkg diagnostics:
1355      setting a negative frequency in data.diagnostics produces
1356     "snap-shot" output (as opposed to time-average if freq > 0)
1357    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1358      NOTE: change ptracer diagnostics name: use 2 characters to work with
1359            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1360    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1361      becomes the coordinate variable for the 'T' dimension
1362    o add CF-style coordinate variables to MNC
1363      - just a first cut:  numbers are meaningless on the cubesphere and
1364        missing along the T axis but otherwise it works!
1365    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1366    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1367    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1368      this is based directly on what the model compute, so that the content of
1369      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1370    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1371    o clean up build options files for SunOS, in particular
1372      - remove -traditional from xmakedepend
1373      - change -xarch=v9 to -xarch=native for f77
1374      - restore use of make (not gmake)
1375      - add CC=gcc if using g77
1376    o changes per discussion of AM, JMC, & EH3 today:
1377      - move redundant "grid" variables out of "state" -- in preparation of
1378        creating proper CF-style coordinate variables and in recognition
1379        that any/all grid variables can be easily copied (eg. w/NCO) from
1380        the grid files into any of the other NetCDF files
1381      - *always* output grid variables with MDSIO (this will eventually be
1382        changed)
1383      - output MNC grid file if useMNC is true
1384    o every instance of _END_MASTER() has been found and replaced with
1385      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1386      preprocessors
1387    o re-arrange diagnostics pkg initialisation:
1388     - allow each package to extend the available diagnostics list
1389     - add some checking and fix small problems (multi-threaded, ...)
1390     - new S/R diagnostics_fill (replace fill_diagnostics):
1391       look through the short list of active diag. (instead of the long list)
1392       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1393    
1394    checkpoint57a_post
1395    o this set of changes restores TAMC compatibility
1396      tested for global_ocean.90x40x15 adjoint on trough
1397      (what a pain)
1398    
1399    checkpoint57a_pre
1400    o some modifs in tools/build_options for sunos
1401    o call ctrl_pack for ctrl at end for optimcycle=0
1402    
1403    checkpoint57
1404    o add horizontal bi-harmonic viscosity for vertical velocity
1405      - new parameter viscA4W (defaults to viscA4)
1406      - affects only non-hydrostatic code
1407      - to be done: no-slip lateral boundary conditions
1408    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1409    o implement Implicit Vertical advection for pTracers
1410    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1411      (implemented also for implicit vertical diffusion & advection)
1412    o OBCS: extend application of tracer open boundary conditions
1413      to a strip beyond the boundary of width Olx/Oly
1414    o add call monitor to TAF set of required calls (flow directives)
1415      and include in natl_box_adjoint
1416    o untangle a few ifdefs related to cost, ctrl, autodiff
1417      untangel a few ALLOW_ECCO_OPTIMIZATION
1418    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1419      (theta2, salt2 in ecco_cost_weights)
1420    
1421    checkpoint56c_post
1422    o OBCS as control variables
1423      - update ctrl_ad_diff.list, obcs_ad_diff.list
1424      - remove balance of obcs controls from default
1425      - fix index bug nobcs in ctrl_init
1426      - fix dummy fields filen in ctrl_pack
1427      - add dummy weights for obcs
1428    o lsopt: comment out fort.94 output
1429    o optim:
1430      - remove unnecessary header files
1431      - adjusted namelists
1432      - add xerbla.F to Makefile
1433    o exf:
1434      - multiple modifications of exf_check_range
1435      - unit change in exf_init_runoff from [m/year] to [m/s]
1436    o mdsio:
1437      - i/o-vector change debugLevel from debLevA to debLevB
1438    
1439    checkpoint56b_post
1440    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1441      is called from DO_THE_MODEL_IO
1442      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1443      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1444      - clean up PTRACERS_WRITE_TIMEAVE a little
1445    o add another verification experiment that tests both the cfc-pkg and
1446      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1447      reactive tendencies treated inline with regular timestepping
1448    o testreport previously did a lousy job of comparing small numbers, so
1449      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1450      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1451      testreport.
1452    o ptracers_monitor: bug fix for MPI
1453    
1454    checkpoint56a_post
1455    o GCHEM: finish reorganizating the package
1456      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1457        (introduces another 3D-array for each passive tracer, but only if
1458        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1459        gchemTendency is not needed because the timestep is done separately)
1460      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1461      - GCHEM is now---more or less cleanly---separate from PTRACERS
1462      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1463        so clear to me how that should be done in a general way.
1464    o CFC: improve formatting of output in CFC_ATMOS
1465    o PTRACERS:
1466      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1467        that ALL experiments with ptracers enable can be checked. This makes
1468        GCHEM_MONITOR obsolete.
1469      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1470        monitorFreq
1471      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1472    o add PTRACERS (PTR0[1-5]) to testreport output
1473    o exf_check_range:
1474      * default changed to .TRUE.
1475      * will check values for niter0 if debLevA, every timestep if debLevB
1476      * STOP in exf_check_range if 'out of range'
1477      * range chosen generous to allow for potential extema
1478      TBD: a version with stricter range
1479           permitted range would be runtime parameters
1480  o GMredi:  o GMredi:
1481    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1482    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1485  o GCHEM:
1485    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1486      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1487    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1488      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1489        this flag is now only visible within GCHEM-pkg routines.
1490      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1491        be replaced by a 3D array that is computed before thermodynamics; for
1492        this, the tracer ID iTracer had to be included into the parameter list
1493        of ptracers_forcing
1494      - set up forward_step to call gchem_forcing, that will replace
1495        gchem_forcing_int in ptracers_forcing
1496      - cleaning up
1497  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1498    
1499  checkpoint56  checkpoint56

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