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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.875 by dimitri, Mon Sep 17 23:03:08 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/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
8      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
9      without requiring DO-IF statements
10    
11    checkpoint59g
12    o adjoint testing: in preparation for changing testreport:
13      - output format: cost and grad written on separated lines
14      - ad output results in directory "results" (instead of "results_ad")
15    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
16    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
17    o pkg/ecco: allow user defined cost function contributions
18    o testreport:
19      Allow to choose (per experiment) the list of tested output variables
20       and the main variable (used to issue a pass/FAIL ) ;
21      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
22      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
23      Also modify printing of summary:
24       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
25       b) echo the list of tested variables in the individual summary.txt of
26          each experiment.
27    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
28      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
29      (but still depend on the tile decompostion of the domain).
30    o pkg/seaice: change a discretization detail to make the B-grid code
31      "more symmetric". This change is likely to remove all "ridges/leads" that
32      where quasi-aligned with the grid in B-grid solutions. It may also be
33      the solution to the stress coupling issues with the B-grid.
34    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
35      remove .cvsignore from input dir. (since testreport no longer run here).
36    o pkg/thsice:
37     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
38     - fix reshaping of sea-ice just after advection:
39       melt all the ice only if ice-volume is too small.
40     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
41       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
42     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
43    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
44      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
45    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
46      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
47      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
48      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
49      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
50      -> update output.txt
51    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
52     this affects truncation error: -> update output.txt of exp:
53      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
54      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
55    
56    checkpoint59f
57    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
58    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
59      a bounded range (in forward mode)
60    o pkg/ecco, ctrl, autodiff and mom_common:
61     internal parameter controls, completements of implementations
62    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
63    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
64      (not seem any difference in testing results).
65    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
66       at face corners.
67    o pkg/generic_advdiff:
68     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
69      loop range indices for computing vertical advection tendency
70      and do the calculation in the interior only (no overlap) ;
71      for now, only implemented for SOM advection (to save CPU time).
72     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
73    o exch2 adjoint
74      First set of changes:
75      - add exch2 hand-written adjoint templates
76      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
77        This will require cleanup in pkg/autodiff/*.F
78        (changed routines currently kept separate in verif. code/)
79      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
80        that used to hide exch2 or cubed-sphere specific code
81        (commented via 'cph-exch2')
82    o pkg/seaice
83      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
84    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
85       output of global_ocean.cs32x15.thsice .
86    
87    checkpoint59e
88    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
89      for B-grid vector (not yet tested) and C-grid vector (<- only used
90      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
91    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
92      (#ifdef ALLOW_SALT_PLUME)
93    o gather_2d/scatter_2d: removed halo regions
94    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
95      scheme and the corresponding test case (under front_relax dir). For now,
96      only available with Skew-flux form and not yet tested in realistic set-up.
97      adjoint: store directives updated, but gradient checks deteriorated,
98      so maybe GM/Redi adjoint is now broken.
99    o seaice adjoint
100      * add AREA, HEFF, HSNOW as control variable
101        (should not change lab_sea results)
102      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
103    o pkg/seaice:
104      * added computation of saltFlux in seaice_growth;
105        For time being, sea ice salinity is assumed constant
106        contribution of snow flooding to freshening of sea ice is neglected.
107        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
108        defaults to 0.0 in order to maintain backward compatibility.
109        Typical values for SEAICE_salinity are 4 to 10 g/kg.
110      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
111      * added SEAICE_availHeatFrac, which specifies fraction of surface level
112        heat content used to melt or grow ice
113      * commented out cap of HICE: it helps keep ice thinner
114      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
115      * applied OBCS T/S mask to HEFFM sea ice mask
116    
117    checkpoint59d
118    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
119     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
120     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
121    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
122     and change default value of parameter "GM_Small_Number";
123     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
124       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
125       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
126    o pkg/ecco: cost function when applying pkg/smooth to controls
127    o pkg/ctrl: add forcingPrecond run time parameter
128    o pkg/seaice:
129     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
130     - fix bug in metric terms of u-equation in LSR solver (implicit part),
131       changes verification/lab_sea
132     - rearrange implicit part of u-equation in LSR solver to make it easier to
133       read, understand, and debug. This causes changes at the truncation level.
134     - fix (serious) bug in the boundary conditions (sign error in the implicit
135       part) of the LSR solver. Changes all LSR results.
136     - fixed problem with HSNOW initialization to avoid thick snow when AREA
137       is initilized with small values - does not change lab_sea results.
138     - added HsnowFile initialization capability
139    o pkg/smooth: addition to model/src and pkg/ctrl so allow
140     initialization of pkg/smooth and application to control vector
141    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
142    o dependencies: pkg/profiles requires pkg/cal
143    o pkg/profiles:
144     - added option ALLOW_PROFILES_GENERICGRID
145         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
146         that interpolation information (grid points and coefficients) is provided
147         within the netcdf input files.
148         -> sample matlab scripts can be found in MITgcm_contrib/gael
149         that allow you to prepare netcdf input files.
150     - also modified: cleaner include statements, cleaner error print statements,
151       cleaner stops when error, and more tests of the netcdf input files consistency.
152    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
153    o pkg/seaice:
154     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
155       requires a new routine: seaice_diagnostics_fill.F
156     - make sure that seaice does not move if not forced (pressure replacement
157       method, Hibler and Ip, 1995), changes results
158     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
159     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
160       It is turned off by default (=-1.), because it changes the results.
161     - make it possible to read AREA from a file, too.
162    
163    checkpoint59c
164    o add S/R and diagnostics for oceanic mixed-layer depth
165    o move GMRedi call after all vertical mixing schemes (including KPP)
166    o pkg/thsice:
167     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
168      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
169    o pkg/obcs:
170     - bug fix for balance code
171    o pkg/seaice:
172      - allow values of SEAICE_elasticParm > 1
173      - add new parameter SEAICE_evpTauRelax as an alternative
174        to SEAICE_elasticParm
175      - make lsr boundary conditions free slip (by default), changes result
176      - add code for no slip boundary conditions for lsr
177      - set minimum of zeta to zero (and not 4e8) (changes results)
178      - add a cap on AREA after advecting AREA if seaice_growth is not called
179    o change calculation of Visbeck K:
180      - no longer depend on tapering scheme; instead, compute slope (limited
181        by GM_maxSlope). this is equivalent to what was comuted before with
182        clipping or linear tappering.
183      - fix vertical averaging (wrong by 1/2 level)
184      - leave the old version (but will not be maintained) within
185        #ifdef OLD_VISBECK_CALC / #endif
186      - update output of exp. ideal_2D_oce
187    o change error catch in calc_r_star to improve vectorization
188    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
189      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
190    o adjoint:
191      Re-organized adjoint checkpointing according to Matt Mazloff
192      (but with modifs/completions/cleanups)
193      Storing is now bundled into large arrays to optimized I/O
194      (and second step in cleanup of the_main_loop)
195    
196    checkpoint59b
197    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
198      - export/import (between ocean & coupler) fields needed for ocean DIC.
199    o pkg/seaice:
200      - get rid of three more exchanges seaice_calc_viscosities (required
201        different loop boundaries in seaice_lsr and seaice_ocean_stress)
202      - bug fix in seaice_ocean_stress (update of lab_sea required)
203      - reduce loop boundaries to necessary minimum also in seaice_evp
204      - go back to the old way of computing deltaC/Z as the adjoint likes that
205        better
206    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
207      passive tracer to an Age Tracer) + update output.txt
208    o pkg/exf:
209      - implement A-grid / C-grid selection for wind-stress input files.
210      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
211      for now, in exf_bulk_largeyeager04.F only :
212      - change implementation for case where windspeed + 2. components wind-stress
213        are read-in. AND use rhoConstFresh to convert evap.
214    o pkg/seaice:
215      - use correct EXCH_UV for wind-forcing (on A-grid).
216      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
217        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
218    o pkg/exf:
219      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
220      EXF_INTERPOLATION:
221      - merge global_with_exf/code version of exf_interp_read.F
222        to the main code ;
223      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
224        reading the file ; Important: This options needs to be defined to recover
225        previous code.
226        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
227      - no longer loose real*8 precision along the way when using exf_iprec=64.
228    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
229      - change discretisation of evp-solver in order to avoid another exchange
230        (changes lab_sea) and clean up a little
231      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
232        help the adjoint (this also changes the results slightly)
233      - add a few "_d 0" where they had been missing in seaice_evp.F
234      - cleaning up: remove unused seaice_calc_rhs.F
235    o pkg/exf: some cleaning-up:
236      - change various "constants" into runtime parameters
237      - cleaned-up Large&Yeager04 routine which should eventually
238        replace exf_bulkformulae.F (changed names of S/R and CPP)
239        and merged various ALLOW_ATM_WIND options
240     only used with thsice pkg (in thsice_get_exf.F):
241      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
242        which are used when useStabilityFct_overIce=TRUE (= the default)
243      - change default values of ice & snow emissivity and scale downward LW
244        by ice & snow emissivity.
245    o pkg/thsice:
246     fix few little problems, in thsice_calc_thickn.F:
247      - growth vertically (and not laterally) if iceFrac == iceMaskMax
248      - melt only laterally if hIce < hThinIce (as the comments say)
249      and in thsice_extend.F:
250      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
251      - start to form ice as soon as the minimum ice-volume is reachable.
252     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
253      and cpl_aim+ocn
254    o pkg/kpp
255     - move computation of surface related input fields to KPP into a new
256       subroutine kpp_forcing_surf.F
257     - remove wrong (within bi,bj loops) EXCH calls.
258     - little cleaning (add argument myThid in last position, cvs header ...)
259     - for now, fix conservation problem by exchanging KPPviscAz (may not
260       be the best fix)
261    o pkg/seaice
262     - check for inconsistent evp parameter/cpp-flag combination
263     - remove leftover errIO flat for obsolete name list error handling
264    o OpenAD
265     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
266    
267    checkpoint59a
268    o pkg/seaice: some parameter clarifications and a little bit of clean up
269    o pkg/thsice: rename run-time parameters:
270       himin       -> hIceMin
271       himin0      -> hThinIce
272       hihig       -> hThickIce
273       i0          -> i0swFrac
274       transCoef   -> bMeltCoef
275       frac_energy -> fracMelting
276      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
277       with default values (for now) that do not change the results.
278      remove old version of thsice vars advection in pkg/seaice.
279    o in FFIELDS.h:
280      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
281      - make pLoad & sIceLoad always available (but still only used if
282         ATMOSPHERIC_LOADING is #define).
283    o pkg/kpp: replaced _KPP_RL with _RL
284    o bug fixes for vertical diffusivity computations when both KPP and
285        3D diffusivity arrays are used.
286    o pkg/seaice: fix bug in evp solver, while doing that
287      - change (improve?) discretization of stress computations for both
288        cgrid-lsr and evp solver
289      - add a new routine to compute strain rates
290      - the above changes lab_sea results
291      - add no slip conditions for evp solver (off by default), lsr-version
292        may follow
293      - fix exchange for shear at Z-points (does not change lab_sea)
294      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
295        (to force the user to pick a time step since there is not "safe" way
296        of choosing it)
297      - add principal stress diagnostics
298      - rearrange fields for evp a little to avoid having to call a: too many
299        exchanges and b: exchanges for stress trensor components which we do
300        not have.
301      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
302        of evp, complete rewrite for lsr case (latter is does not yet work
303        in all cases)
304    o pkg/kpp: add code to have mixing in shelf ice caverns
305      - add myThid to all kpp routines (long overdue)
306    
307    checkpoint59
308    o pkg/exf:
309      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
310        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
311      - move exf header files from lower_case.h to UPPER_CASE.h ;
312        add missing cvs Header & Name
313      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
314      - add namelist param. selectStressGridPosition, exf_monFreq
315      - retire many _CLIM routines, and remove data.exf_clim
316        + params moved to data.exf
317        + climsst, climsss now handled by exf_set_gen, i.e.
318          climss?period=0 refers to constant field,
319          climss?period=-12 to monthly forcing
320      - split up namelists in data.exf
321    o pkg/seaice:
322      - remove seaice_exch and seaice_exch_uv
323      - remove superfluous exchange of theta
324      - add myThid to seaice_budget_ocean/ice
325      - add new interface for atmospheric wind forcing (C-grid only)
326        + new routine
327        + two new field (taux, tauy for stress over ice)
328        + removed one global field (DAIRN) for C-grid case only
329    o pkg/thsise
330      - 2nd set of modifs for thsice adjoint in conjunction with exf
331    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
332    
333    checkpoint58y_post
334    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
335      vertical diffusivity, similar to that in MOM4; turned on using
336      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
337      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
338    o Added capability for 3D specification of background vertical diffusion
339      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
340      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
341      "data" file that contains the 3D vertical diffusivity coefficients.
342    o ice dynamics (pkg/seaice) with thsice thermodynamics:
343      - add code within pkg thsice to advect & diffuse sea-ice fields
344      similar to (and will replace) what has been added in  seaice_advdiff.F,
345      but: - conserving Mass, Heat & Salt.
346           - better when using non-linear advection scheme (not yet fully tested)
347           - can also be used in atmospheric set-up (for now, only the diffusion).
348    
349    checkpoint58x_post
350    o IO option for global-file compact format:
351      - add options when generating topology (utils/exch2/matlab-topology-generator)
352      - add I/O capability (pkg/mdsio).
353      - adapt utils/matlab/rdmds.m to read this format.
354      for now long-line format not yet supported by pkg/mdsio (& exch2).
355    o shelfice: add a few diagnostics
356    
357    checkpoint58w_post
358    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
359      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
360      (and replace horiVertRatio in NH code).
361      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
362                         and tutorial_plume_on_slope (sensitive to truncation)
363    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
364      directly to drive seaice model (C-grid only)
365    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
366     - reintroduce computation of wind from stress,
367     - compute tau (in exf_bulkformulae.F) from windstress averaged to
368       mass points to avoid tau = 0
369     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
370    o rdmnc.m: make it work with "global" files created with gluemnc
371    o rdmnc.m : some improvements in dealing with singleton dimension
372      (tested on all testreport mnc output files).
373    o genmake2: disable pkg/profiles if netcdf test fails.
374    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
375    o move call to cal_readparms up to make calendar parameters/variable available
376      to all packages
377    
378    checkpoint58v_post
379    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
380      useDynP_inEos_Zc tested.
381    o pkg/exf: changes to properly interpolate/mask/scale initial fields
382    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
383      and portions thereof.  See read_cs.txt for description and examples.
384    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
385      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
386      following the great-circle arc between those 2 points.
387    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
388      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
389    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
390     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
391     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
392     - still needs work (not working with some options ; efficiency to improve)
393       and serious testing.
394     - use this scheme for temperature & salinity in 2 advection test exp.:
395       advect_xy & advect_xz, respectively.
396    
397    checkpoint58u_post
398    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
399    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
400    o testreport: add option "-skipdir" to skip some test.
401    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
402      momentum calculation.
403    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
404    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
405      remove checkpoint.F and the_correction_step.F (no longer used);
406      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
407    o add option (linFSConserveTr) to correct for tracer source/sink due to
408      Linear Free surface
409    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
410    o pkg/thsice: fix reading mnc-pickups
411    
412    checkpoint58t_post
413    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
414    o pkg/mdsio:
415     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
416       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
417       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
418     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
419     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
420       either MDS_READ_FIELD or MDS_WRITE_FIELD )
421     - new S/R (to replace MDSWRITEMETA), which allows to write more
422       informations (variable names, time ...) to meta files.
423     - modify rdmds.m to give back the meta file content.
424    o pkg/diagnostics: change vertical interpolation to be safer, and more
425       flexible (define p-levels to interpolate to in data.diagnostics);
426      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
427       diagnostic pointer.
428    o pkg/seaice: more cleaning up of seaice_growth, added many comments
429    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
430    o fix multi-category seaice:
431     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
432       SEAICE_MULTICATEGORY
433     - fix short wave heat flux
434    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
435       and allow to use EVP solver. Change forward lab_sea: test both EVP
436       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
437    o Initial check-in of lab_sea adjoint
438      (very similar to natl_box_adjoint/code_seaice)
439      * used C-grid and EVP solver
440      * used KPP, GM/Redi
441      * uses inAdExact=.TRUE.
442      * gradient checks fail for both ADM and TLM
443        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
444        f.d. gradients actually seem more problematic than ADM, TLM gradients;
445        issue is related to forward mismatch between g77 an ifort
446    o pkg/seaice: overhaul of thermodynamics
447     - growth.F and groatb.F are replaced by new routine seaice_growth.F
448     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
449     - move a few global fields out of SEAICE.h into seaice_growth.F and
450       make them 2D (FICE/QNETO/ ...)
451     - remove FO (it is the same as QNETO)
452     - introduce a few local fields to avoid modifying external fields such
453       as atemp, etc.
454    
455    checkpoint58s_post
456    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
457      changed exf_set_gen.F so that
458        genperiod=0 means input file is one time-constant field and
459        genperiod=-12 means input file contains 12 monthly means
460    o CG2D: use pre-computed solver main-diagonal (stored in common block);
461      this affects truncation error ; generate new output file for exp. which
462      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
463        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
464        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
465        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
466        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
467        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
468    o start implementation of deep-atmosphere and anelastic formulation
469    o verification: remove 2nd copy of input files and use script "prepare_run"
470      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
471    o mom_common/vecinv/fluxform: fix a few initialisation isssues
472    o profiles: fix for multithreaded case
473    
474    o diagnostics: rename few diags:
475      s/'PRESSURE'/'RCENTER '/g
476      s/'TICE    '/'oceFreez'/g
477      s/'TAUX    '/'oceTAUX '/g
478      s/'TAUY    '/'oceTAUY '/g
479      s/'SWFLUX  '/'oceQsw  '/g
480      s/DIFx/DFxE/g
481      s/DIFy/DFyE/g
482      and add few ocean-forcing diagnostics:
483      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
484    o modifications to pkg/seaice/growth.F and budget.F, which change results of
485      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
486      as actual snow thickness.  It now refers everywhere to effective snow
487      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
488    
489    checkpoint58r_post
490    o modifications to pkg/seaice/growth.F, which change results of
491      lab_sea experiment: fixes pertain to melting snow over open water, to
492      masking EVAP under sea ice, and to using the correct AREA variable for
493      computations of EVAP, PRECIP, HSNOW, and GHEFF
494    o add ability to read bathy, salt, and theta using MNC (off by def)
495    o add flooding algorithm and advection of HSNOW for pkg/seaice;
496      both are turned off by default and do no change any results
497    o seaice advection with pkg/thsice: a step toward the use of non-linear
498      advection scheme, but #ifdef or commented out for now (requires more EXCH).
499    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
500      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
501      in natl_box (affects results @ truncation level: update output.txt)
502    o multi-threading and IO:
503      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
504      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
505        (needed to work with SingleCpuIO): tested in all verif. exp.
506    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
507      affects the results (but none of the verification test uses this scheme).
508    o Adding some pkg/diagnostics capability to pkg/seaice
509      (will certainly be subject to changes)
510    o ctrl: adding new control variables:
511      lwflux, lwdown, evap, snowprecip, apressure, runoff
512    
513    checkpoint58q_post
514    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
515      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
516      high_res_cube configuration by 4% on Columbia.
517    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
518      add (in global_with_exf/code) a version of EXF_INTERP_READ without
519      dynamical allocation (seems to work in multi-threaded).
520    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
521      single CPU io) so that TAF does not have to see EESUPPORT.h
522    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
523    
524    checkpoint58p_post
525    o obcs: stop if obcs is used with useCDscheme = .true.
526    o shelfice:
527     - fix a sign error so that no slip at shelfice interface works
528     - remove stop for combination non-hydrostatic code and shelfice. That does
529       not mean, that the results are correct, but at least they are numerically
530       stable
531    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
532    o added adjoint exch routined for all exch*3d* routines
533      and updated flow directives
534    
535    checkpoint58o_post
536    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
537      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
538    o change controling S/R for writing pickup file (new S/R do_write_pickup)
539      and clean-up reading/writing of pickup files.
540    o fix local version of read/write pickup (NH part) in rotating_tank/code
541    o simplify EXCH interface:
542     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
543     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
544    o added the regrid package
545    o shelfice:
546     - add a simple boundary layer scheme to reduce noise
547     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
548    
549    checkpoint58n_post
550    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
551       local variable (not in common block).
552    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
553      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
554      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
555        to work with SingleCpuIO.
556    o add "_d 0" to real constant of pkg/cfc subroutines ;
557       update exp. cfc_exemple & tutorial_cfc_offline output files.
558    o multi-threading and IO:
559      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
560        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
561      - barrier before and after reading.
562      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
563      - avoid using MDS_WRITELOCAL for LAND pkg output.
564      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
565        common-block variables ; Allows multi-threading with master-thread IO.
566    o change default MAX_NO_THREADS from 32 to 4 ;
567      and stop cleanly when MAX_NO_THREADS is too small.
568    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
569    
570    checkpoint58m_post
571    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
572       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
573    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
574       keep global_ocean.90x40x15 (for AD testing) with former secondary test
575       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
576    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
577        add MITgcm_tutorials (= code + all the tutorials)
578    o ecco, option to compute cost for total ssh (mean+anom)
579    o consistent with addition of ptracer and ssh in pkg/profiles
580    o profiles: adding ptracer and ssh
581    o testreport: change multi-test output-file name
582      (from output.txt.{name} to output.{name}.txt)
583    o profiles: now ok for mutli-tiles case
584    o seaice: add 4 parameters for different advection schemes for area,
585      (effective) seaice thickness, enthalphy, and snow height. Their default
586      is the standard parameter SEAICEadvScheme
587    o calc_gw:
588     - add cosFacU in zonal viscous flux (harmonic.visc.).
589     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
590       of tutorial_plume_on_slope.
591    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
592    o calc_gw: true flux-form, account for horizontal grid spacing.
593      update rotating_tank results, but not plume_on_slope (affected at
594      truncation level, 11 digits).
595    
596    checkpoint58l_post
597    o calc_gw:
598     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
599     - remove side-drag for now (need to fix it); update plume_on_slope results.
600     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
601    o commit code to make SST/SSS weights spatially variable
602      (based on either variable in-situ or variable initial T/S weights)
603    o pkg/ecco:
604      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
605        now based on horizontally varying weights wthetaLev, wsaltLev
606      * cost_averagesflags now returns year indices in addition to day, month
607      * sflux balance is performed on annual basis
608        (sflxumm, sfluxmm2, bal_sfluxmm)
609      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
610        including separate counting and multipliers
611    o pkg/rbcs
612      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
613    
614    checkpoint58k_post
615    o testreport:
616     - always build in dir. "build" (if not there, mkdir build instead of building
617       & running in input)
618     - run in dir run (if it exists), in build otherwise.
619     - call prepare_run (if input/prepare_run exists)
620     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
621    o pkg/exf modifications to interpolation and rotation routines for more
622       reasonable treatment of North Pole singularity: for tracers North Pole
623       value is set to northernmost zonal-mean value, for zonal velocity it is
624       set to zero, and for meridional velocity it is set to northernmost value.
625    o pkg/exf/exf_check_range.F
626     - add tile index to diagnostics and move stop statement to the very
627       end of the routine.
628    o pkg/diagnostics: (diagnostics_main_init.F)
629      define title of isomorphic variables according to the current config.
630    o pkg/thsice with pkg/seaice dynamics:
631    - fix domain of computation (interior only, required for exf) and do exchanges
632    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
633    o towards a standard way of dealing with multi-threading in MONITOR
634      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
635    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
636       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
637    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
638    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
639    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
640       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
641    o tracer advection:
642     - clean-up and simplify calc_common_factors.F
643     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
644       advection subroutine (but still not used within DST advection S/R)
645    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
646    
647    checkpoint58j_post
648    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
649      from file (collects calls previously in FORWARD_STEP)
650    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
651    o adjoint store dir. adjusted accordingly
652    o genmake2
653      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
654    
655    checkpoint58i_post
656    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
657      on wind stress (SEAICEstressFactor defaults to 1.)
658    o Total number of Timers is finite (<=40): comment out 2 non-essential one
659      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
660    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
661      on CS-grid: no longer loosing mass.
662    o exf & curvilinear-grid: no longer modify longitude xC & xG.
663    o pkg/ggl90: fix sloppy output and fix a bug
664    o pkg/seaice: added SEAICEuseEVPpickup parameter
665      - Set to false in order to start EVP solver with
666        non-EVP pickup files when using SEAICEuseEVP
667      - fix sign error in diffusion in seaice_calc_rhs
668    
669    checkpoint58h_post
670    * Modifications for bottom topography control
671      o replace hFacC by _hFacC at various places
672      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
673      o add non-self-adjoint cg2d_nsa
674      o update autodiff support routines
675      o re-initialise hfac after ctrl_depth_ini
676      o works for 5x5 box, doesnt work for global_ocean.90x40x15
677    * Adding verification for 5x5 box (4-layer) bottom topography control
678    
679    checkpoint58g_post
680    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
681       used for mean seasonal cycle, mean diurnal cycle); add an example
682       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
683    o pkg/ggl90:
684      - add parameter (minimum surface kinetic energy)
685      - fix bug (avoiding division by zero)
686    o couple pkg/thsice to pkg/seaice:
687      - modify advection in seaice to accomodate new scalar fields to be advected
688      - only muliDimAdection scheme work with seaice/thsice
689      - mapping of thsice-variables to seaice-variables, back and forth
690      - does not break the verification experiments, but does not give the
691        desired results either
692    o pkg/seaice
693      - make (default) second order advection a bit less confusing?
694    
695    checkpoint58f_post
696    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
697      to pkg/seaice):
698      - new routines thsice_map_exf and thsice_get_exf provide the interface
699      - add an additional formal parameter to thsice_solve4temp
700    o pkg/exf:
701      - add new fields wspeed, snowprecip (to be able to couple to thsice)
702      - correct Stefan-Boltzmann constant
703      - new parameter for longwave surface emittance
704      - separate some stuff from exf_bulkformulae into new routines  
705        exf_radiation, exf_wind
706      - add new parameters and constants: longwave emissivity for ocean, ice
707        and snow, evaporation parameters over ice
708      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
709        either wind from stress or stress from wind
710    o pkg/thSIce:
711    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
712    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
713       and THSICE_CALC_THICKN
714    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
715    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
716      to make debugging easier.
717    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
718    o pkg/bulk_force:
719      - clean-up comments and parameters ;
720      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
721    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
722      generate new output for test-experiment: aim.5l_cs.thSI
723    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
724      testreport accordingly
725    
726    checkpoint58e_post
727    o SEAICE_CGRID adjoint done
728    o R_STAR adjoint implemented.
729      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
730      * need to sort out init. of h0facc, etc.
731    o Make pkg/profile fully independent of ecco,cost, etc. stuff
732      to be able to use it in pure forward.
733    
734    checkpoint58d_post
735    o upgrade simple test-experiment to tutorial example:
736     step.1: duplicate the experiment and (step.2) will remove the old copy.
737      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
738      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
739      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
740      tutorial_global_oce_biogeo    <- copy of dic_example
741      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
742      tutorial_plume_on_slope       <- copy of plume_on_slope
743      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
744      tutorial_global_oce_optim     <- empty for now (David ?)
745      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
746     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
747    o correct a sign problem in cost_scat.F
748    o obcs and ptracers: fix boundary conditions for advections schemes
749      with larger stencil
750    o thsice adjoint: start
751    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
752      completeness
753    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
754      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
755    o ptracers adjoint:
756      * avoid extensive recomputatations
757      * fix missing re-init. of gptr (missed by TAF)
758    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
759      me to turn off the excessive output to STDOUT that this package produces
760    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
761      and add those terms in Vector-Invariant formulation.
762    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
763      if the control period (xx_hfluxperiod etc) is 0
764    o in profiles pkg, clean routines and fix details
765    o in ecco pkg, reading ssh data:
766      fix problem in case the model does not start at iter0=0
767    o fix mnc-pickup/restart for ptracers
768    o new package prifiles:
769      code to compute profile-based cost by Gael Forget
770      (modifs in ecco, ctrl, autodiff)
771    o Benign bug fix in initialization (spotted by M. Mazloff) of
772      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
773    
774    checkpoint58c_post
775    o adjoint: finish NLFS adjoint and provide reference output in
776      verification/global_ocean.90x40x15/results_ad_nlfs
777    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
778      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
779      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
780      with SEAICE_CGRID defined.
781    o move calendarDumps from "data" to "data.cal" and clean-up the code
782      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
783    o add useEXF & useCAL flags (for now, set in hard-coded way)
784    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
785      (were missing in NH mode, and wrong in quasihydrostatic mode).
786      waiting for Chris updated version of calc_gw to add those CALLs.
787    o fix bug in quasihydrostatic S/R ;
788      add a test for this option: global_ocean.90x40x15.qshyd
789    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
790      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
791    o add on/off flag useOffLine for package OFFLINE
792    o seaice:
793      - modify advection so that it works also on the C-grid
794      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
795        problem in multi-tile runs with C-grid
796      - add flags for clipping ice velocities and/or masking solver forcing
797      - fix drag (ocean on ice) formulation and a bug that caused noise in the
798        C-grid solver
799      - added a few comments to seaice_diffusion.F
800      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
801        are now exclusive)
802      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
803        required re-ordering the code a little:
804       + make DAIRN global variable (defined in SEAICE)
805       + move computation of the viscosities eta and zeta into a new separate
806         routine (because I need to recompute them in seaice_ocean_stress.F)
807    
808    checkpoint58b_post
809    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
810      update output.txt of exp. aim.5l_cs.thSI
811    o various mnc cleanups and improvements:
812      + shrink lookup tables by factor of ~4
813      + better error reporting when running out of lookup space
814      + able to handle longer path/file names (up to 500 chars)
815    o adjoint:
816      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
817      - TBD: "hidden" mom_vecinv recomp. in dynamics
818    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
819     (allow to differentiate between forcing components using new integer flags:
820      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
821     and add new flag to put Dissipation tendency out of Adams-Bashforth.
822    o ecco
823      - enable trend removal from SSH anomaly obs.
824    o adjoint
825      - a fix for PmEpR when #undef EXACT_CONSERV
826      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
827      - try to fix "hidden" recomp. in forward_step for NLFS
828        (NLFS seems broken sometimes after I checked it in)
829    o seaice:
830     - add c-grid version of the dynamic solver:
831       + three new routines that are the c-grid substitute lsr, dynsolver
832         and ostres
833       + put a few fields that were local to dynsolver into global common
834         blocks, so that I can move the computation of stresses etc into
835         seaice_lsr (saves coding but may break the adjoint).
836     - replace more hardwired parameters by runtime parameters
837     - add ice masks that mask the rhs of the implicit solvers where there
838       is no ice (commented out in seaice_dynsolver, because i am not sure
839       if this works properly), eventually this should replace the clipping
840       of ice velocities in seaice_dynsolver to +/-40cm/s.
841    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
842      include it only where its needed
843    o move balancing of fluxes before the call of external_forcing_surf
844    o seaice:
845      - correct units of turning angles (now they are really in degrees)
846      - move computation of GWATX/Y out of main routine into dynsolver
847      - initialize GWATX/Y in seaice_init
848    o Apply mask on Fresh-Water flux (needed for SSH forcing).
849      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
850    o seaice: add runtime flags for turning angles (default to zero)
851    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
852      and trend from exf forcing and ctrl control adjustments
853    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
854      (since checkpoint57x_post)
855    o change the default rotation period to 86164.s = the Earth rotation
856    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
857      and based on a reference stratification. Tested within hs94.cs-32x32x5.
858    o seaice advection: add code for choosing between the default (2nd order
859      central differences) and multiDim advection schemes provided by
860      pkg/generic_advdiff
861    o seaice:
862      - removed all references to SEAICE_GRID.h fields from
863        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
864        (cubed-sphere configuration will change a little)
865      - grid computations in seaice_init are obsolete now.
866      - cleaned up code a little so that is easier to read (hopefully).
867      - added new (better?) discretizations of default advection and diffusion
868        (turn on with SEAICEuseFluxForm)
869      - replace 1 in 3d global fields by kSurface in growth.F
870      
871    checkpoint58a_post
872    o seaice:
873      - bug fix in advect.F
874    o shelfice:
875      - separate shelfice load anomaly from pload (breaks with time
876        dependent forcing), => introduce constant field shelficeLoadAnomaly.
877        Its default is 0., but it may be computed more cleverly from (unknown)
878        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
879        done offline. A good approximation of the pressure load anomaly is
880        necessary to avoid large initial adjustment processes underneath
881        deep-reaching shelfice.
882      - small fix in ISOMIP shelfice_thermodynamics
883      - add more sophisticated thermodynamics of Hellmer (1989), this is
884        now the default
885      - give a few constants more intuitive names
886    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
887      if bulk formulae are used in long integration (especially EmPmR). Turn
888      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
889      if balancePrintMean, the imbalance that is substracted is printed to
890      STDOUT.
891    o fix bug (typo) in obcs_apply_eta.F
892    o add a new package shelfice which enables us to model the circulation
893      underneath shelf-ice with draughts of hundreds of meters.
894     - works
895     - to do: + include improved thermodynamics
896              + check whether kSurfC (from model/inc/SURFACE.h) can be used
897                instead of new field kTopC
898              + can we use topoFile, Ro_surf and existing code in ini_depth.F
899                instead of new field R_shelfIce and new code in ini_depth.F
900                and ini_mask_etc.F?
901              + adjust vertical mixing schemes?
902    o seaice pkg:
903     - add a cpp-flag to include a simple formula for a salinity dependent
904       freezing point of sea water at the surface
905     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
906       meridional stresses are now different (and hopefully correct)
907    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
908       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
909       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
910    o pkg/diagnostics: add options and parameters for regional-statistics
911       diagnostics ; define regions by reading a region-mask from a file
912       (might add other options later)
913    o pkg/bulk_force:
914     - add option and parameters to use AIM surface-flux formulae.
915     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
916       others forcing fields (defined in PARM05, parameter file "data") are loaded
917       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
918     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
919     - use the right EXCH call for uwind,vwind (to work on CS-grid).
920     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
921       and parameters (note: calcWindStress replaces .NOT.readwindstress).
922     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
923    
924    checkpoint58
925    o add "--embed-source" option to genmake2 which, when the supporting
926      tools can be compiled (as determined by genmake2) will turn on the
927      embed_files package which then embeds the entire MITgcm source code
928      (*.[fFhc] + Makefile) used for the build within the executable
929      - requested by CNH but off by default
930      - adds a paltry <9MB to the mitgcmuv executable in most cases
931      - only writes the output when useEMBEDSRC in eedata is true
932    o clean up 3-dim. relaxation codes:
933      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
934      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
935      * Thanks to Tom Haine for testing!
936    
937    checkpoint57z_post
938    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
939      affects output (@ truncation level) of exp. plume_on_slope ; updated.
940    o fix the pickup behavior for obcs in combination with ptracers
941    o fix a bug in ptracers_external_fields_load
942    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
943      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
944    o transfered surface NH pressure to eta field (if exactConserv).
945    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
946         and update lab_sea output.txt file.
947    o completing 3-dim. relaxation code: additional term
948         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
949      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
950      * At compile time, in "EXF_OPTIONS.h" set
951          #define  ALLOW_CLIMTEMP_RELAXATION
952          #define  ALLOW_CLIMSALT_RELAXATION
953      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
954          tauThetaClimRelax3Dim = 15552000.0,
955          tauSaltClimRelax3Dim  = 15552000.0,
956      * 3 cases:
957          1) Use a constant-in-time 3-dim. field
958          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
959          3) Real-time relax. to time-evolving prescribed field
960    o Adding Laplacian-type smoothness constraint on
961      initial and boundary (forcing) controls (ic, bc)
962      * enable at compile-time via
963        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
964      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
965      * Absolute scale somewhat unclear so far
966      * no area weighting was included since no other cost term does so far
967    
968    checkpoint57y_post
969    First step for a NLFS adjoint
970    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
971    o new init. routines for calc_r_star, calc_surf_dr
972    o still need to deal with ini_masks_etc
973    o testreport seemed happy
974    checkpoint57y_pre
975    
976    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
977    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
978    o add new offset feature to offline pkg (plus minor cleanup)
979    o cfc fixes for final year of integration
980    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
981      be in GCHEM_OPTIONS).
982    
983    checkpoint57x_post
984    o fix testreport Pb in multiple test experiment.
985    o cleanup our namelist syntax in verification:
986      - make it more F95 standards compliant (some work still needed)
987      - allows the vast majority of our tests to work with gfortran
988    o Non-Hydrostatic:
989     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
990     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
991    o Allow to apply AB on T,S rather than on AB(gT,gS):
992     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
993     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
994       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
995     - need a "clever" read_pickup to restart from the other AB formulation
996    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
997    o remove some unused variables (reduces number of compiler warnings)
998    o adjoint
999      * Disable useVariableViscosity for adjoint for time being
1000        (there are a number of extensive recomputations)
1001      * Initialize certain variables needed for adjoint
1002    
1003    checkpoint57w_post
1004    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1005                 fix the singleCpuIO RS version of MDSWRITEFIELD
1006       and add a WARNING if using globalFiles=T with multi-processors.
1007    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1008      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1009    o tracer advection scheme:
1010      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1011       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1012       was not very convenient).
1013      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1014       (further tests needed for the implicit DST & Flux-Limiter schemes).
1015    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1016      and sRef for convenience, handy, when you want to initialize
1017      ptracers in a large domain with a constant non-zero value. Also,
1018      untangle ptracers_init.F a little.
1019    
1020    checkpoint57v_post
1021    o change dome exp. to use variable viscosity in side-drag terms.
1022    o remove all the files from the cfc_offline test since they are now
1023      incorporated into tutorial_cfc_offline which has been producing
1024      identical results for a few days of testing
1025    o add new parameter: sideDragFactor to enable half-slip-side BC
1026      and change side-drag S/R to use viscosity from mom_calc_visc
1027      (can switch back by setting sideDragFactor=0.); affects results at
1028      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1029       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1030    o vorticity & strain are now computed without masking, to account for
1031      no-slip-side BC in variable viscosity calculation ; mask is applied
1032      anyway later on, before computing advection/coriolis terms.
1033    o modify exp4 to test new obcs support for reading from external files
1034      and for passive tracers
1035    o fix behavior of ptracers_monitor when monitor output is written to a
1036      netcdf-file; still not independent of monitor.F (writes in the same
1037      file).
1038    o change default value of tRef (put a uniform, meaningful value for ocean
1039      & atmos) and initialize sRef (was missing, as Martin mentioned).
1040    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1041      to be proportional to enstrophy dissipation length.  Thus,
1042       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1043      This is now consistent with Smagorinsky and with the manual.
1044    
1045    checkpoint57u_post
1046    o OBCS and PTRACERS: add open boundary support for passive tracers
1047      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1048        OB-values from file; this is not different from the way theta and salinity
1049        are treated
1050      - however, Orlanski-radiation conditions are not supported, and the model
1051        will stop if you use pTracers and Orlanski at the same time.
1052      - beefed up the rountine obcs_external_fields_load: now only those open
1053        boundary values are overwritten with values from files for which there
1054        are really files, otherwise the OB-fields remain untouched. This makes
1055        it possible to use different OBs at different ends of the domain (as
1056        with EXF)
1057    o reduce number of exch calls in shap_filt (s2).
1058    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1059      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1060    
1061    checkpoint57t_post
1062    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1063    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1064      same truncation, independent of the face number: affects affects several
1065      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1066    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1067      note that biharmonic viscosity + no-slip was not tested in any experiment.
1068    o fix bug in non-linear free-surf side-drag ; generate new output for
1069      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1070    o make mnc honor the writeBinaryPrec flag for most kinds of output
1071    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1072    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1073      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1074    o add brackets in multi-terms sum to get same truncation, independent of
1075      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1076      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1077    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1078      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1079      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1080      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1081      Suggested values of viscosity parameters found in mom_calc_visc.
1082      Many new viscosity diagnostics available.
1083    
1084    checkpoint57s_post
1085    o Add clearing-house for viscosity calculations, mom_calc_visc and
1086      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1087      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1088      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1089      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1090      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1091      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1092      ViscAhStrain and viscAhTension are now retired.
1093    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1094    o In response to JMC's bug report, genmake2 now ignores any soft-links
1095      that it finds in the *current* directory when searching for files.
1096      Soft-links found in any other source directories will still work as
1097      they did before.
1098    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1099      a C routine to unlimit the stack size
1100    o mnc-ify pkg/aim snapshot vars
1101    o mnc-ify pkg/land as requested by Daniel
1102    o various changes to mnc including:
1103      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1104      - output can now be grouped so that all files within a group
1105          change the ITER portion of their names in lock-step together
1106      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1107          and works with both EXCH1 and EXCH2 (but needs more testing)
1108      - writing works for all verification test cases w/ g77 on Linux
1109    
1110    checkpoint57r_post
1111    o make MNC variable initialization happen earlier
1112    o add diagnostics for (almost) each term of the momentum Eq.
1113    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1114    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1115    o remove MINIMAL_TAVE_OUTPUT option ;
1116      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1117    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1118      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1119    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1120    o add time-dependent SST, SSS control
1121    o cost terms in ecco/ modularized (new cost_generic.F)
1122    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1123    o new infrastructure for seaice model vs. obs misfits in seaice/
1124      * driver from the_main_loop.F is seaice_cost_driver.F
1125      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1126      * gradient check in Exp. 6a of natl_box_adjoint/
1127    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1128      (see README file)
1129    
1130    checkpoint57q_post
1131    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1132    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1133      - bug was reported by Jean-Michel and Ian Fenty
1134    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1135      update exp. cpl_aim+ocn output.
1136    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1137      Needed for high-res. runs with large global files
1138      to be able to limit tapelev size
1139    o Changed some tests for adjoint:
1140      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1141      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1142      * global_ocean.90x40x15/ back to default 3-level checkpointing
1143    o Modifications to enable scripted COMMON to MODULE conversion
1144      * verification/OpenAD/code/ has necessary scripts and description;
1145      * converts, compiles and runs successfully;
1146    
1147    checkpoint57p_post
1148    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1149    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1150      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1151    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1152    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1153      (was already the case for dissipation with mom_vecinv,
1154       and also the case for grad.PhiHyd when staggered-timeStep)
1155      This will allow to put dissipation out-off the AB time-stepping.
1156     Unfortunately, affects truncation error. Update output of exp. that "fails"
1157      (cg2d matching number) and leave the others for later: front_relax(10),
1158      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1159      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1160    
1161    checkpoint57o_post
1162    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1163      (2) its ready to be documented during the 20050801 DocFest
1164    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1165      for ideal_2D_oce and lab_sea on linux_ia32_g77
1166    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1167      in global1x1_tot/code_seaice_adj to access indices 32, 33
1168      (worth another tag)
1169    
1170    checkpoint57n_post
1171    o adding precip control xx_precip 32
1172    o adding swflux control xx_swflux 33
1173    o Replacing 10 forcing penalty cost routines by 1 generic.
1174    o Implementing partitioning in time-mean and variable adjustment
1175      for atmos. state.
1176    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1177    o in natl_box_adjoint:
1178      * updated exp 1 to 10
1179        (but does not have time-mean vs. variable split results yet)
1180    o updated global1x1/*_seaice_adj/
1181      to incorporate latest changes
1182    o enable useSingleCpuIO for mdsio vector routines
1183      (applies in particular to tapelev I/O)
1184    o removed inefficient K-loop in all active_file*control*.F
1185    
1186    checkpoint57m_post
1187    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1188      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1189    o pkg/exch2: filling of face-corner halo regions is optional
1190      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1191    
1192    checkpoint57l_post
1193     tag before updating tutorials (pre-release-2)
1194    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1195       for output and interpolation of input fields onto model grid)
1196    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1197       Affects results of exp. rotating_tank ; update output.txt.
1198    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1199          and taking the square quantity and/or using a fraction-weight field.
1200    o fix aim_diagnostics_init.F mate numbers.
1201    o add mnc output capability to diagnostics/diagstat and update
1202      our cvsignore files for the ACSII output generated
1203    
1204    checkpoint57k_post
1205    o lab_sea now uses diagnostics package and provides a suite of
1206      new EXF diagnostics output.
1207    
1208    checkpoint57j_post
1209    o exf
1210      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1211        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1212        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1213      * extended diagnostics output
1214        - now includes all EXF variables
1215        - hs, hl moved to common block
1216        - separate S/R for diagnostics, called after ctrl vector is added
1217        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1218        - EXFqnet contains true Qnet (i.e. includes qsw)
1219      * updated verif. lab_sea, global_with_exf
1220      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1221        to ensure that diagnostics sees a true EXFqnet
1222    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1223    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1224      several times with different frequencies.
1225    o mnc-ify the thsice package as requested by Daniel Enderton
1226      - the monitor--MNC output needs work
1227      - many attributes need to be added (most are currently blank)
1228    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1229      - many attributes need to be added (most are currently blank)
1230    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1231    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1232    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1233      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1234         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1235    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1236     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1237    
1238    checkpoint57i_post
1239    o Diagnostics package was changed: diagnostic allocation is now deactivated
1240      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1241    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1242      add 1rst Order upwind vertical Shear.
1243    o add a quick fix for A/B checkpointing in OFFLINE mode
1244    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1245      end-run around the C/Fortran linking horror in eesup/src/timers.F
1246    o added pkg/runclock: allows user to terminate run based on wall clock
1247    o added non-hydrostatic scaling parameter: nh_am2
1248    o pkg/my82: futile attempt to make results compiler-independent by adding
1249      some "_d 0", etc. no effect.
1250    o for mnc output, fill the 'T' coordinate var with myTime and create a
1251      separate 'iter' variable for iteration count
1252    o pkg/diagnostics:
1253      add new capability: output of Global/Regional & per-level statistics ;
1254      tested against monitor output (including land & thSIce) on various exp.
1255    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1256    
1257    checkpoint57h_done
1258      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1259      data.diagnostics, data.gchem, data.ptracers) is done.
1260    
1261    o pkg/diagnostics: prepare for Global/Regional statistics.
1262      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1263    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1264      and rename it: DIFFERENT_MULTIPLE
1265    
1266    checkpoint57h_post
1267    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1268    o pkg/diagnostics: change output frequency, now in seconds (instead
1269      of Nb of iterations). This requires to change data.diagnostics.
1270    checkpoint57h_pre
1271    
1272    o in mnc, let the user create the output dir if both mnc_outdir_date
1273      and mnc_outdir_num are false
1274    o add fflags() to pkg/diagnostics which allows one to specify, on a
1275      per-file basis, the file precision [default behavior is unchanged]
1276    o added diagnostics to pkg/kpp, including computation of mixed layer
1277      depth based on a temperature/density criterion
1278    o updated verification/natl_box to test the new pkg/kpp diagnostics
1279    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1280    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1281    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1282      not mnc -- this mistake was found by JMC and is now corrected
1283    
1284    checkpoint57g_post
1285    o add Adams-Bashforth 3rd Order time stepping:
1286      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1287      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1288    checkpoint57g_pre
1289    
1290    o make lambda[Theta,Salt]ClimRelax spatially varying
1291      (default remains spatially uniform constant based on tau)
1292    o added new control variables
1293      * init. uVel, vVel, etanN
1294      * lambda[Theta,Salt]ClimRelax
1295    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1296      (suggested by G. Forget)
1297    
1298    checkpoint57f_post
1299    o add parameter "baseTime" = model base time = time at iteration zero
1300      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1301      account for baseTime shift
1302    o move Coriolis arrays from PARAMS.h to GRID.h
1303    checkpoint57f_pre
1304    
1305    o mnc-ifying the seaice package
1306    o introduced an alternative length scale calculation for use in the limiting
1307      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1308    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1309    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1310      as well as grad(vort3).  Made it compatible with both approximate form
1311      for the cubed sphere and full form of these gradients.  Added flag
1312      useFullLeith to select between approximate and full form.  
1313    o add "d0" in getcon.F to reduce differences between compilers/platforms
1314      update output.txt of exp. fizhi-gridalt-hs
1315    o change port_rand funtion to allow to set the seed.
1316    o fix obscure MNC bug involving conversion between reals and integers
1317      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1318        new version is now more standards-compliant
1319    o adjoint-related modifications
1320      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1321      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1322      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1323    
1324    checkpoint57e_post
1325    o Adding eddy stress controls a la Ferreira et al.
1326    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1327    
1328    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1329      update output.txt of exp. fizhi-gridalt-hs
1330    o add more "Z" dimensions and associated coordinate vars to MNC
1331    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1332    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1333      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1334      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1335      months and years.  Requires pkg/cal.
1336    o diagnostics: add pickup functionality
1337      - off by default for backwards compatibility
1338      - current version only uses MDSIO -- MNC will be added
1339    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1340    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1341    
1342    checkpoint57d_post
1343    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1344    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1345      output from the diagnostics package
1346    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1347    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1348      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1349    o add coordinate variables to the MNC output from the diagnostics package
1350    o change MNC-flags default value: true when useMNC=TRUE
1351    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1352      the ability (off by default) to read the grid information using MNC
1353    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1354    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1355    o do snap-shot diagnostics at the middle of the time-interval (instead of
1356      at the end).
1357    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1358      new test for AIM with thSIce + slab-ocean
1359    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1360    o move state variable diagnostics to the beginning of the time step ;
1361      (note: still needs some work specially for snap-shot diagnostics)
1362      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1363    
1364    checkpoint57c_post
1365    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1366    o generate new output.txt files on faulks with g77 & the new -ieee option
1367    checkpoint57c_pre
1368    
1369    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1370      update output.txt of exp. global_ocean.90x40x15
1371    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1372      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1373    o add saltFlux(+File) forcing capability with periodicExternalForcing
1374    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1375    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1376    o improvements for the MNC output from DIAGNOSTICS:
1377      - correct handling of the unlimitied dimension
1378      - all dims now have associated coordinate variables
1379      - variables located at U, V, and Corner ("Z") points are now written
1380        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1381        *all* data points are output
1382    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1383    o added pkg/seaice/seaice_monitor.F
1384    o mdsio_readfield.F can now read files visible only to master MPI process.
1385    o pkg/seaice: some test code for ice-modified ocean stress
1386    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1387      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1388      spurious negative numbers for precipitation and humidity.  Will cause
1389      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1390    o pkg/ctrl/
1391      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1392        May be enabled via doPackDiag
1393      *  introduce z-scaling of
1394         + gradient (doZscalePack) and
1395         + control (doZscaleUnpack)
1396    o pkg/mdsio/
1397      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1398      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1399    
1400    checkpoint57b_post
1401    o simplify options in diagnostics_fill arguments (remove weird combinations)
1402    o fix MNC coordinate variables so that they now contain per-face index
1403      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1404      general, EXCH2 grids are only aligned to a "local" coordinate system
1405    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1406    o Implement instantaneous output within pkg diagnostics:
1407      setting a negative frequency in data.diagnostics produces
1408     "snap-shot" output (as opposed to time-average if freq > 0)
1409    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1410      NOTE: change ptracer diagnostics name: use 2 characters to work with
1411            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1412    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1413      becomes the coordinate variable for the 'T' dimension
1414    o add CF-style coordinate variables to MNC
1415      - just a first cut:  numbers are meaningless on the cubesphere and
1416        missing along the T axis but otherwise it works!
1417    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1418    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1419    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1420      this is based directly on what the model compute, so that the content of
1421      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1422    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1423    o clean up build options files for SunOS, in particular
1424      - remove -traditional from xmakedepend
1425      - change -xarch=v9 to -xarch=native for f77
1426      - restore use of make (not gmake)
1427      - add CC=gcc if using g77
1428    o changes per discussion of AM, JMC, & EH3 today:
1429      - move redundant "grid" variables out of "state" -- in preparation of
1430        creating proper CF-style coordinate variables and in recognition
1431        that any/all grid variables can be easily copied (eg. w/NCO) from
1432        the grid files into any of the other NetCDF files
1433      - *always* output grid variables with MDSIO (this will eventually be
1434        changed)
1435      - output MNC grid file if useMNC is true
1436    o every instance of _END_MASTER() has been found and replaced with
1437      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1438      preprocessors
1439    o re-arrange diagnostics pkg initialisation:
1440     - allow each package to extend the available diagnostics list
1441     - add some checking and fix small problems (multi-threaded, ...)
1442     - new S/R diagnostics_fill (replace fill_diagnostics):
1443       look through the short list of active diag. (instead of the long list)
1444       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1445    
1446    checkpoint57a_post
1447    o this set of changes restores TAMC compatibility
1448      tested for global_ocean.90x40x15 adjoint on trough
1449      (what a pain)
1450    
1451    checkpoint57a_pre
1452    o some modifs in tools/build_options for sunos
1453    o call ctrl_pack for ctrl at end for optimcycle=0
1454    
1455    checkpoint57
1456    o add horizontal bi-harmonic viscosity for vertical velocity
1457      - new parameter viscA4W (defaults to viscA4)
1458      - affects only non-hydrostatic code
1459      - to be done: no-slip lateral boundary conditions
1460    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1461    o implement Implicit Vertical advection for pTracers
1462    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1463      (implemented also for implicit vertical diffusion & advection)
1464    o OBCS: extend application of tracer open boundary conditions
1465      to a strip beyond the boundary of width Olx/Oly
1466    o add call monitor to TAF set of required calls (flow directives)
1467      and include in natl_box_adjoint
1468    o untangle a few ifdefs related to cost, ctrl, autodiff
1469      untangel a few ALLOW_ECCO_OPTIMIZATION
1470    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1471      (theta2, salt2 in ecco_cost_weights)
1472    
1473    checkpoint56c_post
1474    o OBCS as control variables
1475      - update ctrl_ad_diff.list, obcs_ad_diff.list
1476      - remove balance of obcs controls from default
1477      - fix index bug nobcs in ctrl_init
1478      - fix dummy fields filen in ctrl_pack
1479      - add dummy weights for obcs
1480    o lsopt: comment out fort.94 output
1481    o optim:
1482      - remove unnecessary header files
1483      - adjusted namelists
1484      - add xerbla.F to Makefile
1485    o exf:
1486      - multiple modifications of exf_check_range
1487      - unit change in exf_init_runoff from [m/year] to [m/s]
1488    o mdsio:
1489      - i/o-vector change debugLevel from debLevA to debLevB
1490    
1491    checkpoint56b_post
1492    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1493      is called from DO_THE_MODEL_IO
1494      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1495      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1496      - clean up PTRACERS_WRITE_TIMEAVE a little
1497    o add another verification experiment that tests both the cfc-pkg and
1498      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1499      reactive tendencies treated inline with regular timestepping
1500    o testreport previously did a lousy job of comparing small numbers, so
1501      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1502      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1503      testreport.
1504    o ptracers_monitor: bug fix for MPI
1505    
1506    checkpoint56a_post
1507    o GCHEM: finish reorganizating the package
1508      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1509        (introduces another 3D-array for each passive tracer, but only if
1510        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1511        gchemTendency is not needed because the timestep is done separately)
1512      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1513      - GCHEM is now---more or less cleanly---separate from PTRACERS
1514      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1515        so clear to me how that should be done in a general way.
1516    o CFC: improve formatting of output in CFC_ATMOS
1517    o PTRACERS:
1518      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1519        that ALL experiments with ptracers enable can be checked. This makes
1520        GCHEM_MONITOR obsolete.
1521      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1522        monitorFreq
1523      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1524    o add PTRACERS (PTR0[1-5]) to testreport output
1525    o exf_check_range:
1526      * default changed to .TRUE.
1527      * will check values for niter0 if debLevA, every timestep if debLevB
1528      * STOP in exf_check_range if 'out of range'
1529      * range chosen generous to allow for potential extema
1530      TBD: a version with stricter range
1531           permitted range would be runtime parameters
1532  o GMredi:  o GMredi:
1533    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1534    - 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 1537  o GCHEM:
1537    - 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
1538      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1539    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1540      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1541        this flag is now only visible within GCHEM-pkg routines.
1542      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1543        be replaced by a 3D array that is computed before thermodynamics; for
1544        this, the tracer ID iTracer had to be included into the parameter list
1545        of ptracers_forcing
1546      - set up forward_step to call gchem_forcing, that will replace
1547        gchem_forcing_int in ptracers_forcing
1548      - cleaning up
1549  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
1550    
1551  checkpoint56  checkpoint56

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