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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.872 by dimitri, Sat Sep 15 01:38:59 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: adding ice salinity HSALT as a prognostic variable
8    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
9    o pkg/ecco: allow user defined cost function contributions
10    o testreport:
11      Allow to choose (per experiment) the list of tested output variables
12       and the main variable (used to issue a pass/FAIL ) ;
13      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
14      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
15      Also modify printing of summary:
16       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
17       b) echo the list of tested variables in the individual summary.txt of
18          each experiment.
19    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
20      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
21      (but still depend on the tile decompostion of the domain).
22    o pkg/seaice: change a discretization detail to make the B-grid code
23      "more symmetric". This change is likely to remove all "ridges/leads" that
24      where quasi-aligned with the grid in B-grid solutions. It may also be
25      the solution to the stress coupling issues with the B-grid.
26    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
27      remove .cvsignore from input dir. (since testreport no longer run here).
28    o pkg/thsice:
29     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
30     - fix reshaping of sea-ice just after advection:
31       melt all the ice only if ice-volume is too small.
32     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
33       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
34     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
35    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
36      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
37    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
38      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
39      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
40      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
41      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
42      -> update output.txt
43    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
44     this affects truncation error: -> update output.txt of exp:
45      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
46      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
47    
48    checkpoint59f
49    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
50    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
51      a bounded range (in forward mode)
52    o pkg/ecco, ctrl, autodiff and mom_common:
53     internal parameter controls, completements of implementations
54    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
55    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
56      (not seem any difference in testing results).
57    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
58       at face corners.
59    o pkg/generic_advdiff:
60     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
61      loop range indices for computing vertical advection tendency
62      and do the calculation in the interior only (no overlap) ;
63      for now, only implemented for SOM advection (to save CPU time).
64     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
65    o exch2 adjoint
66      First set of changes:
67      - add exch2 hand-written adjoint templates
68      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
69        This will require cleanup in pkg/autodiff/*.F
70        (changed routines currently kept separate in verif. code/)
71      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
72        that used to hide exch2 or cubed-sphere specific code
73        (commented via 'cph-exch2')
74    o pkg/seaice
75      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
76    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
77       output of global_ocean.cs32x15.thsice .
78    
79    checkpoint59e
80    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
81      for B-grid vector (not yet tested) and C-grid vector (<- only used
82      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
83    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
84      (#ifdef ALLOW_SALT_PLUME)
85    o gather_2d/scatter_2d: removed halo regions
86    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
87      scheme and the corresponding test case (under front_relax dir). For now,
88      only available with Skew-flux form and not yet tested in realistic set-up.
89      adjoint: store directives updated, but gradient checks deteriorated,
90      so maybe GM/Redi adjoint is now broken.
91    o seaice adjoint
92      * add AREA, HEFF, HSNOW as control variable
93        (should not change lab_sea results)
94      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
95    o pkg/seaice:
96      * added computation of saltFlux in seaice_growth;
97        For time being, sea ice salinity is assumed constant
98        contribution of snow flooding to freshening of sea ice is neglected.
99        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
100        defaults to 0.0 in order to maintain backward compatibility.
101        Typical values for SEAICE_salinity are 4 to 10 g/kg.
102      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
103      * added SEAICE_availHeatFrac, which specifies fraction of surface level
104        heat content used to melt or grow ice
105      * commented out cap of HICE: it helps keep ice thinner
106      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
107      * applied OBCS T/S mask to HEFFM sea ice mask
108    
109    checkpoint59d
110    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
111     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
112     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
113    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
114     and change default value of parameter "GM_Small_Number";
115     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
116       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
117       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
118    o pkg/ecco: cost function when applying pkg/smooth to controls
119    o pkg/ctrl: add forcingPrecond run time parameter
120    o pkg/seaice:
121     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
122     - fix bug in metric terms of u-equation in LSR solver (implicit part),
123       changes verification/lab_sea
124     - rearrange implicit part of u-equation in LSR solver to make it easier to
125       read, understand, and debug. This causes changes at the truncation level.
126     - fix (serious) bug in the boundary conditions (sign error in the implicit
127       part) of the LSR solver. Changes all LSR results.
128     - fixed problem with HSNOW initialization to avoid thick snow when AREA
129       is initilized with small values - does not change lab_sea results.
130     - added HsnowFile initialization capability
131    o pkg/smooth: addition to model/src and pkg/ctrl so allow
132     initialization of pkg/smooth and application to control vector
133    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
134    o dependencies: pkg/profiles requires pkg/cal
135    o pkg/profiles:
136     - added option ALLOW_PROFILES_GENERICGRID
137         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
138         that interpolation information (grid points and coefficients) is provided
139         within the netcdf input files.
140         -> sample matlab scripts can be found in MITgcm_contrib/gael
141         that allow you to prepare netcdf input files.
142     - also modified: cleaner include statements, cleaner error print statements,
143       cleaner stops when error, and more tests of the netcdf input files consistency.
144    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
145    o pkg/seaice:
146     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
147       requires a new routine: seaice_diagnostics_fill.F
148     - make sure that seaice does not move if not forced (pressure replacement
149       method, Hibler and Ip, 1995), changes results
150     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
151     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
152       It is turned off by default (=-1.), because it changes the results.
153     - make it possible to read AREA from a file, too.
154    
155    checkpoint59c
156    o add S/R and diagnostics for oceanic mixed-layer depth
157    o move GMRedi call after all vertical mixing schemes (including KPP)
158    o pkg/thsice:
159     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
160      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
161    o pkg/obcs:
162     - bug fix for balance code
163    o pkg/seaice:
164      - allow values of SEAICE_elasticParm > 1
165      - add new parameter SEAICE_evpTauRelax as an alternative
166        to SEAICE_elasticParm
167      - make lsr boundary conditions free slip (by default), changes result
168      - add code for no slip boundary conditions for lsr
169      - set minimum of zeta to zero (and not 4e8) (changes results)
170      - add a cap on AREA after advecting AREA if seaice_growth is not called
171    o change calculation of Visbeck K:
172      - no longer depend on tapering scheme; instead, compute slope (limited
173        by GM_maxSlope). this is equivalent to what was comuted before with
174        clipping or linear tappering.
175      - fix vertical averaging (wrong by 1/2 level)
176      - leave the old version (but will not be maintained) within
177        #ifdef OLD_VISBECK_CALC / #endif
178      - update output of exp. ideal_2D_oce
179    o change error catch in calc_r_star to improve vectorization
180    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
181      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
182    o adjoint:
183      Re-organized adjoint checkpointing according to Matt Mazloff
184      (but with modifs/completions/cleanups)
185      Storing is now bundled into large arrays to optimized I/O
186      (and second step in cleanup of the_main_loop)
187    
188    checkpoint59b
189    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
190      - export/import (between ocean & coupler) fields needed for ocean DIC.
191    o pkg/seaice:
192      - get rid of three more exchanges seaice_calc_viscosities (required
193        different loop boundaries in seaice_lsr and seaice_ocean_stress)
194      - bug fix in seaice_ocean_stress (update of lab_sea required)
195      - reduce loop boundaries to necessary minimum also in seaice_evp
196      - go back to the old way of computing deltaC/Z as the adjoint likes that
197        better
198    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
199      passive tracer to an Age Tracer) + update output.txt
200    o pkg/exf:
201      - implement A-grid / C-grid selection for wind-stress input files.
202      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
203      for now, in exf_bulk_largeyeager04.F only :
204      - change implementation for case where windspeed + 2. components wind-stress
205        are read-in. AND use rhoConstFresh to convert evap.
206    o pkg/seaice:
207      - use correct EXCH_UV for wind-forcing (on A-grid).
208      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
209        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
210    o pkg/exf:
211      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
212      EXF_INTERPOLATION:
213      - merge global_with_exf/code version of exf_interp_read.F
214        to the main code ;
215      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
216        reading the file ; Important: This options needs to be defined to recover
217        previous code.
218        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
219      - no longer loose real*8 precision along the way when using exf_iprec=64.
220    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
221      - change discretisation of evp-solver in order to avoid another exchange
222        (changes lab_sea) and clean up a little
223      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
224        help the adjoint (this also changes the results slightly)
225      - add a few "_d 0" where they had been missing in seaice_evp.F
226      - cleaning up: remove unused seaice_calc_rhs.F
227    o pkg/exf: some cleaning-up:
228      - change various "constants" into runtime parameters
229      - cleaned-up Large&Yeager04 routine which should eventually
230        replace exf_bulkformulae.F (changed names of S/R and CPP)
231        and merged various ALLOW_ATM_WIND options
232     only used with thsice pkg (in thsice_get_exf.F):
233      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
234        which are used when useStabilityFct_overIce=TRUE (= the default)
235      - change default values of ice & snow emissivity and scale downward LW
236        by ice & snow emissivity.
237    o pkg/thsice:
238     fix few little problems, in thsice_calc_thickn.F:
239      - growth vertically (and not laterally) if iceFrac == iceMaskMax
240      - melt only laterally if hIce < hThinIce (as the comments say)
241      and in thsice_extend.F:
242      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
243      - start to form ice as soon as the minimum ice-volume is reachable.
244     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
245      and cpl_aim+ocn
246    o pkg/kpp
247     - move computation of surface related input fields to KPP into a new
248       subroutine kpp_forcing_surf.F
249     - remove wrong (within bi,bj loops) EXCH calls.
250     - little cleaning (add argument myThid in last position, cvs header ...)
251     - for now, fix conservation problem by exchanging KPPviscAz (may not
252       be the best fix)
253    o pkg/seaice
254     - check for inconsistent evp parameter/cpp-flag combination
255     - remove leftover errIO flat for obsolete name list error handling
256    o OpenAD
257     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
258    
259    checkpoint59a
260    o pkg/seaice: some parameter clarifications and a little bit of clean up
261    o pkg/thsice: rename run-time parameters:
262       himin       -> hIceMin
263       himin0      -> hThinIce
264       hihig       -> hThickIce
265       i0          -> i0swFrac
266       transCoef   -> bMeltCoef
267       frac_energy -> fracMelting
268      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
269       with default values (for now) that do not change the results.
270      remove old version of thsice vars advection in pkg/seaice.
271    o in FFIELDS.h:
272      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
273      - make pLoad & sIceLoad always available (but still only used if
274         ATMOSPHERIC_LOADING is #define).
275    o pkg/kpp: replaced _KPP_RL with _RL
276    o bug fixes for vertical diffusivity computations when both KPP and
277        3D diffusivity arrays are used.
278    o pkg/seaice: fix bug in evp solver, while doing that
279      - change (improve?) discretization of stress computations for both
280        cgrid-lsr and evp solver
281      - add a new routine to compute strain rates
282      - the above changes lab_sea results
283      - add no slip conditions for evp solver (off by default), lsr-version
284        may follow
285      - fix exchange for shear at Z-points (does not change lab_sea)
286      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
287        (to force the user to pick a time step since there is not "safe" way
288        of choosing it)
289      - add principal stress diagnostics
290      - rearrange fields for evp a little to avoid having to call a: too many
291        exchanges and b: exchanges for stress trensor components which we do
292        not have.
293      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
294        of evp, complete rewrite for lsr case (latter is does not yet work
295        in all cases)
296    o pkg/kpp: add code to have mixing in shelf ice caverns
297      - add myThid to all kpp routines (long overdue)
298    
299    checkpoint59
300    o pkg/exf:
301      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
302        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
303      - move exf header files from lower_case.h to UPPER_CASE.h ;
304        add missing cvs Header & Name
305      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
306      - add namelist param. selectStressGridPosition, exf_monFreq
307      - retire many _CLIM routines, and remove data.exf_clim
308        + params moved to data.exf
309        + climsst, climsss now handled by exf_set_gen, i.e.
310          climss?period=0 refers to constant field,
311          climss?period=-12 to monthly forcing
312      - split up namelists in data.exf
313    o pkg/seaice:
314      - remove seaice_exch and seaice_exch_uv
315      - remove superfluous exchange of theta
316      - add myThid to seaice_budget_ocean/ice
317      - add new interface for atmospheric wind forcing (C-grid only)
318        + new routine
319        + two new field (taux, tauy for stress over ice)
320        + removed one global field (DAIRN) for C-grid case only
321    o pkg/thsise
322      - 2nd set of modifs for thsice adjoint in conjunction with exf
323    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
324    
325    checkpoint58y_post
326    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
327      vertical diffusivity, similar to that in MOM4; turned on using
328      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
329      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
330    o Added capability for 3D specification of background vertical diffusion
331      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
332      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
333      "data" file that contains the 3D vertical diffusivity coefficients.
334    o ice dynamics (pkg/seaice) with thsice thermodynamics:
335      - add code within pkg thsice to advect & diffuse sea-ice fields
336      similar to (and will replace) what has been added in  seaice_advdiff.F,
337      but: - conserving Mass, Heat & Salt.
338           - better when using non-linear advection scheme (not yet fully tested)
339           - can also be used in atmospheric set-up (for now, only the diffusion).
340    
341    checkpoint58x_post
342    o IO option for global-file compact format:
343      - add options when generating topology (utils/exch2/matlab-topology-generator)
344      - add I/O capability (pkg/mdsio).
345      - adapt utils/matlab/rdmds.m to read this format.
346      for now long-line format not yet supported by pkg/mdsio (& exch2).
347    o shelfice: add a few diagnostics
348    
349    checkpoint58w_post
350    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
351      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
352      (and replace horiVertRatio in NH code).
353      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
354                         and tutorial_plume_on_slope (sensitive to truncation)
355    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
356      directly to drive seaice model (C-grid only)
357    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
358     - reintroduce computation of wind from stress,
359     - compute tau (in exf_bulkformulae.F) from windstress averaged to
360       mass points to avoid tau = 0
361     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
362    o rdmnc.m: make it work with "global" files created with gluemnc
363    o rdmnc.m : some improvements in dealing with singleton dimension
364      (tested on all testreport mnc output files).
365    o genmake2: disable pkg/profiles if netcdf test fails.
366    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
367    o move call to cal_readparms up to make calendar parameters/variable available
368      to all packages
369    
370    checkpoint58v_post
371    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
372      useDynP_inEos_Zc tested.
373    o pkg/exf: changes to properly interpolate/mask/scale initial fields
374    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
375      and portions thereof.  See read_cs.txt for description and examples.
376    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
377      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
378      following the great-circle arc between those 2 points.
379    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
380      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
381    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
382     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
383     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
384     - still needs work (not working with some options ; efficiency to improve)
385       and serious testing.
386     - use this scheme for temperature & salinity in 2 advection test exp.:
387       advect_xy & advect_xz, respectively.
388    
389    checkpoint58u_post
390    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
391    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
392    o testreport: add option "-skipdir" to skip some test.
393    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
394      momentum calculation.
395    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
396    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
397      remove checkpoint.F and the_correction_step.F (no longer used);
398      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
399    o add option (linFSConserveTr) to correct for tracer source/sink due to
400      Linear Free surface
401    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
402    o pkg/thsice: fix reading mnc-pickups
403    
404    checkpoint58t_post
405    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
406    o pkg/mdsio:
407     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
408       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
409       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
410     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
411     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
412       either MDS_READ_FIELD or MDS_WRITE_FIELD )
413     - new S/R (to replace MDSWRITEMETA), which allows to write more
414       informations (variable names, time ...) to meta files.
415     - modify rdmds.m to give back the meta file content.
416    o pkg/diagnostics: change vertical interpolation to be safer, and more
417       flexible (define p-levels to interpolate to in data.diagnostics);
418      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
419       diagnostic pointer.
420    o pkg/seaice: more cleaning up of seaice_growth, added many comments
421    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
422    o fix multi-category seaice:
423     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
424       SEAICE_MULTICATEGORY
425     - fix short wave heat flux
426    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
427       and allow to use EVP solver. Change forward lab_sea: test both EVP
428       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
429    o Initial check-in of lab_sea adjoint
430      (very similar to natl_box_adjoint/code_seaice)
431      * used C-grid and EVP solver
432      * used KPP, GM/Redi
433      * uses inAdExact=.TRUE.
434      * gradient checks fail for both ADM and TLM
435        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
436        f.d. gradients actually seem more problematic than ADM, TLM gradients;
437        issue is related to forward mismatch between g77 an ifort
438    o pkg/seaice: overhaul of thermodynamics
439     - growth.F and groatb.F are replaced by new routine seaice_growth.F
440     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
441     - move a few global fields out of SEAICE.h into seaice_growth.F and
442       make them 2D (FICE/QNETO/ ...)
443     - remove FO (it is the same as QNETO)
444     - introduce a few local fields to avoid modifying external fields such
445       as atemp, etc.
446    
447    checkpoint58s_post
448    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
449      changed exf_set_gen.F so that
450        genperiod=0 means input file is one time-constant field and
451        genperiod=-12 means input file contains 12 monthly means
452    o CG2D: use pre-computed solver main-diagonal (stored in common block);
453      this affects truncation error ; generate new output file for exp. which
454      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
455        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
456        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
457        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
458        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
459        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
460    o start implementation of deep-atmosphere and anelastic formulation
461    o verification: remove 2nd copy of input files and use script "prepare_run"
462      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
463    o mom_common/vecinv/fluxform: fix a few initialisation isssues
464    o profiles: fix for multithreaded case
465    
466    o diagnostics: rename few diags:
467      s/'PRESSURE'/'RCENTER '/g
468      s/'TICE    '/'oceFreez'/g
469      s/'TAUX    '/'oceTAUX '/g
470      s/'TAUY    '/'oceTAUY '/g
471      s/'SWFLUX  '/'oceQsw  '/g
472      s/DIFx/DFxE/g
473      s/DIFy/DFyE/g
474      and add few ocean-forcing diagnostics:
475      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
476    o modifications to pkg/seaice/growth.F and budget.F, which change results of
477      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
478      as actual snow thickness.  It now refers everywhere to effective snow
479      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
480    
481    checkpoint58r_post
482    o modifications to pkg/seaice/growth.F, which change results of
483      lab_sea experiment: fixes pertain to melting snow over open water, to
484      masking EVAP under sea ice, and to using the correct AREA variable for
485      computations of EVAP, PRECIP, HSNOW, and GHEFF
486    o add ability to read bathy, salt, and theta using MNC (off by def)
487    o add flooding algorithm and advection of HSNOW for pkg/seaice;
488      both are turned off by default and do no change any results
489    o seaice advection with pkg/thsice: a step toward the use of non-linear
490      advection scheme, but #ifdef or commented out for now (requires more EXCH).
491    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
492      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
493      in natl_box (affects results @ truncation level: update output.txt)
494    o multi-threading and IO:
495      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
496      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
497        (needed to work with SingleCpuIO): tested in all verif. exp.
498    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
499      affects the results (but none of the verification test uses this scheme).
500    o Adding some pkg/diagnostics capability to pkg/seaice
501      (will certainly be subject to changes)
502    o ctrl: adding new control variables:
503      lwflux, lwdown, evap, snowprecip, apressure, runoff
504    
505    checkpoint58q_post
506    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
507      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
508      high_res_cube configuration by 4% on Columbia.
509    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
510      add (in global_with_exf/code) a version of EXF_INTERP_READ without
511      dynamical allocation (seems to work in multi-threaded).
512    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
513      single CPU io) so that TAF does not have to see EESUPPORT.h
514    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
515    
516    checkpoint58p_post
517    o obcs: stop if obcs is used with useCDscheme = .true.
518    o shelfice:
519     - fix a sign error so that no slip at shelfice interface works
520     - remove stop for combination non-hydrostatic code and shelfice. That does
521       not mean, that the results are correct, but at least they are numerically
522       stable
523    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
524    o added adjoint exch routined for all exch*3d* routines
525      and updated flow directives
526    
527    checkpoint58o_post
528    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
529      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
530    o change controling S/R for writing pickup file (new S/R do_write_pickup)
531      and clean-up reading/writing of pickup files.
532    o fix local version of read/write pickup (NH part) in rotating_tank/code
533    o simplify EXCH interface:
534     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
535     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
536    o added the regrid package
537    o shelfice:
538     - add a simple boundary layer scheme to reduce noise
539     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
540    
541    checkpoint58n_post
542    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
543       local variable (not in common block).
544    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
545      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
546      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
547        to work with SingleCpuIO.
548    o add "_d 0" to real constant of pkg/cfc subroutines ;
549       update exp. cfc_exemple & tutorial_cfc_offline output files.
550    o multi-threading and IO:
551      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
552        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
553      - barrier before and after reading.
554      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
555      - avoid using MDS_WRITELOCAL for LAND pkg output.
556      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
557        common-block variables ; Allows multi-threading with master-thread IO.
558    o change default MAX_NO_THREADS from 32 to 4 ;
559      and stop cleanly when MAX_NO_THREADS is too small.
560    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
561    
562    checkpoint58m_post
563    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
564       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
565    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
566       keep global_ocean.90x40x15 (for AD testing) with former secondary test
567       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
568    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
569        add MITgcm_tutorials (= code + all the tutorials)
570    o ecco, option to compute cost for total ssh (mean+anom)
571    o consistent with addition of ptracer and ssh in pkg/profiles
572    o profiles: adding ptracer and ssh
573    o testreport: change multi-test output-file name
574      (from output.txt.{name} to output.{name}.txt)
575    o profiles: now ok for mutli-tiles case
576    o seaice: add 4 parameters for different advection schemes for area,
577      (effective) seaice thickness, enthalphy, and snow height. Their default
578      is the standard parameter SEAICEadvScheme
579    o calc_gw:
580     - add cosFacU in zonal viscous flux (harmonic.visc.).
581     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
582       of tutorial_plume_on_slope.
583    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
584    o calc_gw: true flux-form, account for horizontal grid spacing.
585      update rotating_tank results, but not plume_on_slope (affected at
586      truncation level, 11 digits).
587    
588    checkpoint58l_post
589    o calc_gw:
590     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
591     - remove side-drag for now (need to fix it); update plume_on_slope results.
592     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
593    o commit code to make SST/SSS weights spatially variable
594      (based on either variable in-situ or variable initial T/S weights)
595    o pkg/ecco:
596      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
597        now based on horizontally varying weights wthetaLev, wsaltLev
598      * cost_averagesflags now returns year indices in addition to day, month
599      * sflux balance is performed on annual basis
600        (sflxumm, sfluxmm2, bal_sfluxmm)
601      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
602        including separate counting and multipliers
603    o pkg/rbcs
604      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
605    
606    checkpoint58k_post
607    o testreport:
608     - always build in dir. "build" (if not there, mkdir build instead of building
609       & running in input)
610     - run in dir run (if it exists), in build otherwise.
611     - call prepare_run (if input/prepare_run exists)
612     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
613    o pkg/exf modifications to interpolation and rotation routines for more
614       reasonable treatment of North Pole singularity: for tracers North Pole
615       value is set to northernmost zonal-mean value, for zonal velocity it is
616       set to zero, and for meridional velocity it is set to northernmost value.
617    o pkg/exf/exf_check_range.F
618     - add tile index to diagnostics and move stop statement to the very
619       end of the routine.
620    o pkg/diagnostics: (diagnostics_main_init.F)
621      define title of isomorphic variables according to the current config.
622    o pkg/thsice with pkg/seaice dynamics:
623    - fix domain of computation (interior only, required for exf) and do exchanges
624    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
625    o towards a standard way of dealing with multi-threading in MONITOR
626      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
627    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
628       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
629    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
630    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
631    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
632       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
633    o tracer advection:
634     - clean-up and simplify calc_common_factors.F
635     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
636       advection subroutine (but still not used within DST advection S/R)
637    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
638    
639    checkpoint58j_post
640    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
641      from file (collects calls previously in FORWARD_STEP)
642    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
643    o adjoint store dir. adjusted accordingly
644    o genmake2
645      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
646    
647    checkpoint58i_post
648    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
649      on wind stress (SEAICEstressFactor defaults to 1.)
650    o Total number of Timers is finite (<=40): comment out 2 non-essential one
651      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
652    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
653      on CS-grid: no longer loosing mass.
654    o exf & curvilinear-grid: no longer modify longitude xC & xG.
655    o pkg/ggl90: fix sloppy output and fix a bug
656    o pkg/seaice: added SEAICEuseEVPpickup parameter
657      - Set to false in order to start EVP solver with
658        non-EVP pickup files when using SEAICEuseEVP
659      - fix sign error in diffusion in seaice_calc_rhs
660    
661    checkpoint58h_post
662    * Modifications for bottom topography control
663      o replace hFacC by _hFacC at various places
664      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
665      o add non-self-adjoint cg2d_nsa
666      o update autodiff support routines
667      o re-initialise hfac after ctrl_depth_ini
668      o works for 5x5 box, doesnt work for global_ocean.90x40x15
669    * Adding verification for 5x5 box (4-layer) bottom topography control
670    
671    checkpoint58g_post
672    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
673       used for mean seasonal cycle, mean diurnal cycle); add an example
674       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
675    o pkg/ggl90:
676      - add parameter (minimum surface kinetic energy)
677      - fix bug (avoiding division by zero)
678    o couple pkg/thsice to pkg/seaice:
679      - modify advection in seaice to accomodate new scalar fields to be advected
680      - only muliDimAdection scheme work with seaice/thsice
681      - mapping of thsice-variables to seaice-variables, back and forth
682      - does not break the verification experiments, but does not give the
683        desired results either
684    o pkg/seaice
685      - make (default) second order advection a bit less confusing?
686    
687    checkpoint58f_post
688    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
689      to pkg/seaice):
690      - new routines thsice_map_exf and thsice_get_exf provide the interface
691      - add an additional formal parameter to thsice_solve4temp
692    o pkg/exf:
693      - add new fields wspeed, snowprecip (to be able to couple to thsice)
694      - correct Stefan-Boltzmann constant
695      - new parameter for longwave surface emittance
696      - separate some stuff from exf_bulkformulae into new routines  
697        exf_radiation, exf_wind
698      - add new parameters and constants: longwave emissivity for ocean, ice
699        and snow, evaporation parameters over ice
700      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
701        either wind from stress or stress from wind
702    o pkg/thSIce:
703    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
704    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
705       and THSICE_CALC_THICKN
706    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
707    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
708      to make debugging easier.
709    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
710    o pkg/bulk_force:
711      - clean-up comments and parameters ;
712      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
713    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
714      generate new output for test-experiment: aim.5l_cs.thSI
715    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
716      testreport accordingly
717    
718    checkpoint58e_post
719    o SEAICE_CGRID adjoint done
720    o R_STAR adjoint implemented.
721      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
722      * need to sort out init. of h0facc, etc.
723    o Make pkg/profile fully independent of ecco,cost, etc. stuff
724      to be able to use it in pure forward.
725    
726    checkpoint58d_post
727    o upgrade simple test-experiment to tutorial example:
728     step.1: duplicate the experiment and (step.2) will remove the old copy.
729      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
730      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
731      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
732      tutorial_global_oce_biogeo    <- copy of dic_example
733      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
734      tutorial_plume_on_slope       <- copy of plume_on_slope
735      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
736      tutorial_global_oce_optim     <- empty for now (David ?)
737      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
738     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
739    o correct a sign problem in cost_scat.F
740    o obcs and ptracers: fix boundary conditions for advections schemes
741      with larger stencil
742    o thsice adjoint: start
743    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
744      completeness
745    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
746      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
747    o ptracers adjoint:
748      * avoid extensive recomputatations
749      * fix missing re-init. of gptr (missed by TAF)
750    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
751      me to turn off the excessive output to STDOUT that this package produces
752    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
753      and add those terms in Vector-Invariant formulation.
754    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
755      if the control period (xx_hfluxperiod etc) is 0
756    o in profiles pkg, clean routines and fix details
757    o in ecco pkg, reading ssh data:
758      fix problem in case the model does not start at iter0=0
759    o fix mnc-pickup/restart for ptracers
760    o new package prifiles:
761      code to compute profile-based cost by Gael Forget
762      (modifs in ecco, ctrl, autodiff)
763    o Benign bug fix in initialization (spotted by M. Mazloff) of
764      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
765    
766    checkpoint58c_post
767    o adjoint: finish NLFS adjoint and provide reference output in
768      verification/global_ocean.90x40x15/results_ad_nlfs
769    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
770      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
771      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
772      with SEAICE_CGRID defined.
773    o move calendarDumps from "data" to "data.cal" and clean-up the code
774      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
775    o add useEXF & useCAL flags (for now, set in hard-coded way)
776    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
777      (were missing in NH mode, and wrong in quasihydrostatic mode).
778      waiting for Chris updated version of calc_gw to add those CALLs.
779    o fix bug in quasihydrostatic S/R ;
780      add a test for this option: global_ocean.90x40x15.qshyd
781    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
782      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
783    o add on/off flag useOffLine for package OFFLINE
784    o seaice:
785      - modify advection so that it works also on the C-grid
786      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
787        problem in multi-tile runs with C-grid
788      - add flags for clipping ice velocities and/or masking solver forcing
789      - fix drag (ocean on ice) formulation and a bug that caused noise in the
790        C-grid solver
791      - added a few comments to seaice_diffusion.F
792      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
793        are now exclusive)
794      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
795        required re-ordering the code a little:
796       + make DAIRN global variable (defined in SEAICE)
797       + move computation of the viscosities eta and zeta into a new separate
798         routine (because I need to recompute them in seaice_ocean_stress.F)
799    
800    checkpoint58b_post
801    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
802      update output.txt of exp. aim.5l_cs.thSI
803    o various mnc cleanups and improvements:
804      + shrink lookup tables by factor of ~4
805      + better error reporting when running out of lookup space
806      + able to handle longer path/file names (up to 500 chars)
807    o adjoint:
808      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
809      - TBD: "hidden" mom_vecinv recomp. in dynamics
810    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
811     (allow to differentiate between forcing components using new integer flags:
812      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
813     and add new flag to put Dissipation tendency out of Adams-Bashforth.
814    o ecco
815      - enable trend removal from SSH anomaly obs.
816    o adjoint
817      - a fix for PmEpR when #undef EXACT_CONSERV
818      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
819      - try to fix "hidden" recomp. in forward_step for NLFS
820        (NLFS seems broken sometimes after I checked it in)
821    o seaice:
822     - add c-grid version of the dynamic solver:
823       + three new routines that are the c-grid substitute lsr, dynsolver
824         and ostres
825       + put a few fields that were local to dynsolver into global common
826         blocks, so that I can move the computation of stresses etc into
827         seaice_lsr (saves coding but may break the adjoint).
828     - replace more hardwired parameters by runtime parameters
829     - add ice masks that mask the rhs of the implicit solvers where there
830       is no ice (commented out in seaice_dynsolver, because i am not sure
831       if this works properly), eventually this should replace the clipping
832       of ice velocities in seaice_dynsolver to +/-40cm/s.
833    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
834      include it only where its needed
835    o move balancing of fluxes before the call of external_forcing_surf
836    o seaice:
837      - correct units of turning angles (now they are really in degrees)
838      - move computation of GWATX/Y out of main routine into dynsolver
839      - initialize GWATX/Y in seaice_init
840    o Apply mask on Fresh-Water flux (needed for SSH forcing).
841      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
842    o seaice: add runtime flags for turning angles (default to zero)
843    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
844      and trend from exf forcing and ctrl control adjustments
845    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
846      (since checkpoint57x_post)
847    o change the default rotation period to 86164.s = the Earth rotation
848    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
849      and based on a reference stratification. Tested within hs94.cs-32x32x5.
850    o seaice advection: add code for choosing between the default (2nd order
851      central differences) and multiDim advection schemes provided by
852      pkg/generic_advdiff
853    o seaice:
854      - removed all references to SEAICE_GRID.h fields from
855        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
856        (cubed-sphere configuration will change a little)
857      - grid computations in seaice_init are obsolete now.
858      - cleaned up code a little so that is easier to read (hopefully).
859      - added new (better?) discretizations of default advection and diffusion
860        (turn on with SEAICEuseFluxForm)
861      - replace 1 in 3d global fields by kSurface in growth.F
862      
863    checkpoint58a_post
864    o seaice:
865      - bug fix in advect.F
866    o shelfice:
867      - separate shelfice load anomaly from pload (breaks with time
868        dependent forcing), => introduce constant field shelficeLoadAnomaly.
869        Its default is 0., but it may be computed more cleverly from (unknown)
870        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
871        done offline. A good approximation of the pressure load anomaly is
872        necessary to avoid large initial adjustment processes underneath
873        deep-reaching shelfice.
874      - small fix in ISOMIP shelfice_thermodynamics
875      - add more sophisticated thermodynamics of Hellmer (1989), this is
876        now the default
877      - give a few constants more intuitive names
878    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
879      if bulk formulae are used in long integration (especially EmPmR). Turn
880      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
881      if balancePrintMean, the imbalance that is substracted is printed to
882      STDOUT.
883    o fix bug (typo) in obcs_apply_eta.F
884    o add a new package shelfice which enables us to model the circulation
885      underneath shelf-ice with draughts of hundreds of meters.
886     - works
887     - to do: + include improved thermodynamics
888              + check whether kSurfC (from model/inc/SURFACE.h) can be used
889                instead of new field kTopC
890              + can we use topoFile, Ro_surf and existing code in ini_depth.F
891                instead of new field R_shelfIce and new code in ini_depth.F
892                and ini_mask_etc.F?
893              + adjust vertical mixing schemes?
894    o seaice pkg:
895     - add a cpp-flag to include a simple formula for a salinity dependent
896       freezing point of sea water at the surface
897     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
898       meridional stresses are now different (and hopefully correct)
899    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
900       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
901       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
902    o pkg/diagnostics: add options and parameters for regional-statistics
903       diagnostics ; define regions by reading a region-mask from a file
904       (might add other options later)
905    o pkg/bulk_force:
906     - add option and parameters to use AIM surface-flux formulae.
907     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
908       others forcing fields (defined in PARM05, parameter file "data") are loaded
909       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
910     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
911     - use the right EXCH call for uwind,vwind (to work on CS-grid).
912     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
913       and parameters (note: calcWindStress replaces .NOT.readwindstress).
914     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
915    
916    checkpoint58
917    o add "--embed-source" option to genmake2 which, when the supporting
918      tools can be compiled (as determined by genmake2) will turn on the
919      embed_files package which then embeds the entire MITgcm source code
920      (*.[fFhc] + Makefile) used for the build within the executable
921      - requested by CNH but off by default
922      - adds a paltry <9MB to the mitgcmuv executable in most cases
923      - only writes the output when useEMBEDSRC in eedata is true
924    o clean up 3-dim. relaxation codes:
925      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
926      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
927      * Thanks to Tom Haine for testing!
928    
929    checkpoint57z_post
930    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
931      affects output (@ truncation level) of exp. plume_on_slope ; updated.
932    o fix the pickup behavior for obcs in combination with ptracers
933    o fix a bug in ptracers_external_fields_load
934    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
935      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
936    o transfered surface NH pressure to eta field (if exactConserv).
937    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
938         and update lab_sea output.txt file.
939    o completing 3-dim. relaxation code: additional term
940         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
941      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
942      * At compile time, in "EXF_OPTIONS.h" set
943          #define  ALLOW_CLIMTEMP_RELAXATION
944          #define  ALLOW_CLIMSALT_RELAXATION
945      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
946          tauThetaClimRelax3Dim = 15552000.0,
947          tauSaltClimRelax3Dim  = 15552000.0,
948      * 3 cases:
949          1) Use a constant-in-time 3-dim. field
950          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
951          3) Real-time relax. to time-evolving prescribed field
952    o Adding Laplacian-type smoothness constraint on
953      initial and boundary (forcing) controls (ic, bc)
954      * enable at compile-time via
955        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
956      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
957      * Absolute scale somewhat unclear so far
958      * no area weighting was included since no other cost term does so far
959    
960    checkpoint57y_post
961    First step for a NLFS adjoint
962    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
963    o new init. routines for calc_r_star, calc_surf_dr
964    o still need to deal with ini_masks_etc
965    o testreport seemed happy
966    checkpoint57y_pre
967    
968    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
969    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
970    o add new offset feature to offline pkg (plus minor cleanup)
971    o cfc fixes for final year of integration
972    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
973      be in GCHEM_OPTIONS).
974    
975    checkpoint57x_post
976    o fix testreport Pb in multiple test experiment.
977    o cleanup our namelist syntax in verification:
978      - make it more F95 standards compliant (some work still needed)
979      - allows the vast majority of our tests to work with gfortran
980    o Non-Hydrostatic:
981     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
982     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
983    o Allow to apply AB on T,S rather than on AB(gT,gS):
984     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
985     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
986       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
987     - need a "clever" read_pickup to restart from the other AB formulation
988    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
989    o remove some unused variables (reduces number of compiler warnings)
990    o adjoint
991      * Disable useVariableViscosity for adjoint for time being
992        (there are a number of extensive recomputations)
993      * Initialize certain variables needed for adjoint
994    
995    checkpoint57w_post
996    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
997                 fix the singleCpuIO RS version of MDSWRITEFIELD
998       and add a WARNING if using globalFiles=T with multi-processors.
999    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1000      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1001    o tracer advection scheme:
1002      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1003       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1004       was not very convenient).
1005      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1006       (further tests needed for the implicit DST & Flux-Limiter schemes).
1007    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1008      and sRef for convenience, handy, when you want to initialize
1009      ptracers in a large domain with a constant non-zero value. Also,
1010      untangle ptracers_init.F a little.
1011    
1012    checkpoint57v_post
1013    o change dome exp. to use variable viscosity in side-drag terms.
1014    o remove all the files from the cfc_offline test since they are now
1015      incorporated into tutorial_cfc_offline which has been producing
1016      identical results for a few days of testing
1017    o add new parameter: sideDragFactor to enable half-slip-side BC
1018      and change side-drag S/R to use viscosity from mom_calc_visc
1019      (can switch back by setting sideDragFactor=0.); affects results at
1020      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1021       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1022    o vorticity & strain are now computed without masking, to account for
1023      no-slip-side BC in variable viscosity calculation ; mask is applied
1024      anyway later on, before computing advection/coriolis terms.
1025    o modify exp4 to test new obcs support for reading from external files
1026      and for passive tracers
1027    o fix behavior of ptracers_monitor when monitor output is written to a
1028      netcdf-file; still not independent of monitor.F (writes in the same
1029      file).
1030    o change default value of tRef (put a uniform, meaningful value for ocean
1031      & atmos) and initialize sRef (was missing, as Martin mentioned).
1032    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1033      to be proportional to enstrophy dissipation length.  Thus,
1034       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1035      This is now consistent with Smagorinsky and with the manual.
1036    
1037    checkpoint57u_post
1038    o OBCS and PTRACERS: add open boundary support for passive tracers
1039      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1040        OB-values from file; this is not different from the way theta and salinity
1041        are treated
1042      - however, Orlanski-radiation conditions are not supported, and the model
1043        will stop if you use pTracers and Orlanski at the same time.
1044      - beefed up the rountine obcs_external_fields_load: now only those open
1045        boundary values are overwritten with values from files for which there
1046        are really files, otherwise the OB-fields remain untouched. This makes
1047        it possible to use different OBs at different ends of the domain (as
1048        with EXF)
1049    o reduce number of exch calls in shap_filt (s2).
1050    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1051      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1052    
1053    checkpoint57t_post
1054    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1055    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1056      same truncation, independent of the face number: affects affects several
1057      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1058    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1059      note that biharmonic viscosity + no-slip was not tested in any experiment.
1060    o fix bug in non-linear free-surf side-drag ; generate new output for
1061      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1062    o make mnc honor the writeBinaryPrec flag for most kinds of output
1063    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1064    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1065      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1066    o add brackets in multi-terms sum to get same truncation, independent of
1067      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1068      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1069    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1070      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1071      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1072      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1073      Suggested values of viscosity parameters found in mom_calc_visc.
1074      Many new viscosity diagnostics available.
1075    
1076    checkpoint57s_post
1077    o Add clearing-house for viscosity calculations, mom_calc_visc and
1078      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1079      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1080      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1081      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1082      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1083      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1084      ViscAhStrain and viscAhTension are now retired.
1085    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1086    o In response to JMC's bug report, genmake2 now ignores any soft-links
1087      that it finds in the *current* directory when searching for files.
1088      Soft-links found in any other source directories will still work as
1089      they did before.
1090    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1091      a C routine to unlimit the stack size
1092    o mnc-ify pkg/aim snapshot vars
1093    o mnc-ify pkg/land as requested by Daniel
1094    o various changes to mnc including:
1095      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1096      - output can now be grouped so that all files within a group
1097          change the ITER portion of their names in lock-step together
1098      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1099          and works with both EXCH1 and EXCH2 (but needs more testing)
1100      - writing works for all verification test cases w/ g77 on Linux
1101    
1102    checkpoint57r_post
1103    o make MNC variable initialization happen earlier
1104    o add diagnostics for (almost) each term of the momentum Eq.
1105    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1106    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1107    o remove MINIMAL_TAVE_OUTPUT option ;
1108      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1109    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1110      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1111    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1112    o add time-dependent SST, SSS control
1113    o cost terms in ecco/ modularized (new cost_generic.F)
1114    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1115    o new infrastructure for seaice model vs. obs misfits in seaice/
1116      * driver from the_main_loop.F is seaice_cost_driver.F
1117      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1118      * gradient check in Exp. 6a of natl_box_adjoint/
1119    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1120      (see README file)
1121    
1122    checkpoint57q_post
1123    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1124    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1125      - bug was reported by Jean-Michel and Ian Fenty
1126    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1127      update exp. cpl_aim+ocn output.
1128    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1129      Needed for high-res. runs with large global files
1130      to be able to limit tapelev size
1131    o Changed some tests for adjoint:
1132      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1133      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1134      * global_ocean.90x40x15/ back to default 3-level checkpointing
1135    o Modifications to enable scripted COMMON to MODULE conversion
1136      * verification/OpenAD/code/ has necessary scripts and description;
1137      * converts, compiles and runs successfully;
1138    
1139    checkpoint57p_post
1140    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1141    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1142      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1143    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1144    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1145      (was already the case for dissipation with mom_vecinv,
1146       and also the case for grad.PhiHyd when staggered-timeStep)
1147      This will allow to put dissipation out-off the AB time-stepping.
1148     Unfortunately, affects truncation error. Update output of exp. that "fails"
1149      (cg2d matching number) and leave the others for later: front_relax(10),
1150      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1151      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1152    
1153    checkpoint57o_post
1154    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1155      (2) its ready to be documented during the 20050801 DocFest
1156    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1157      for ideal_2D_oce and lab_sea on linux_ia32_g77
1158    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1159      in global1x1_tot/code_seaice_adj to access indices 32, 33
1160      (worth another tag)
1161    
1162    checkpoint57n_post
1163    o adding precip control xx_precip 32
1164    o adding swflux control xx_swflux 33
1165    o Replacing 10 forcing penalty cost routines by 1 generic.
1166    o Implementing partitioning in time-mean and variable adjustment
1167      for atmos. state.
1168    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1169    o in natl_box_adjoint:
1170      * updated exp 1 to 10
1171        (but does not have time-mean vs. variable split results yet)
1172    o updated global1x1/*_seaice_adj/
1173      to incorporate latest changes
1174    o enable useSingleCpuIO for mdsio vector routines
1175      (applies in particular to tapelev I/O)
1176    o removed inefficient K-loop in all active_file*control*.F
1177    
1178    checkpoint57m_post
1179    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1180      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1181    o pkg/exch2: filling of face-corner halo regions is optional
1182      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1183    
1184    checkpoint57l_post
1185     tag before updating tutorials (pre-release-2)
1186    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1187       for output and interpolation of input fields onto model grid)
1188    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1189       Affects results of exp. rotating_tank ; update output.txt.
1190    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1191          and taking the square quantity and/or using a fraction-weight field.
1192    o fix aim_diagnostics_init.F mate numbers.
1193    o add mnc output capability to diagnostics/diagstat and update
1194      our cvsignore files for the ACSII output generated
1195    
1196    checkpoint57k_post
1197    o lab_sea now uses diagnostics package and provides a suite of
1198      new EXF diagnostics output.
1199    
1200    checkpoint57j_post
1201    o exf
1202      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1203        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1204        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1205      * extended diagnostics output
1206        - now includes all EXF variables
1207        - hs, hl moved to common block
1208        - separate S/R for diagnostics, called after ctrl vector is added
1209        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1210        - EXFqnet contains true Qnet (i.e. includes qsw)
1211      * updated verif. lab_sea, global_with_exf
1212      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1213        to ensure that diagnostics sees a true EXFqnet
1214    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1215    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1216      several times with different frequencies.
1217    o mnc-ify the thsice package as requested by Daniel Enderton
1218      - the monitor--MNC output needs work
1219      - many attributes need to be added (most are currently blank)
1220    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1221      - many attributes need to be added (most are currently blank)
1222    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1223    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1224    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1225      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1226         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1227    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1228     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1229    
1230    checkpoint57i_post
1231    o Diagnostics package was changed: diagnostic allocation is now deactivated
1232      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1233    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1234      add 1rst Order upwind vertical Shear.
1235    o add a quick fix for A/B checkpointing in OFFLINE mode
1236    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1237      end-run around the C/Fortran linking horror in eesup/src/timers.F
1238    o added pkg/runclock: allows user to terminate run based on wall clock
1239    o added non-hydrostatic scaling parameter: nh_am2
1240    o pkg/my82: futile attempt to make results compiler-independent by adding
1241      some "_d 0", etc. no effect.
1242    o for mnc output, fill the 'T' coordinate var with myTime and create a
1243      separate 'iter' variable for iteration count
1244    o pkg/diagnostics:
1245      add new capability: output of Global/Regional & per-level statistics ;
1246      tested against monitor output (including land & thSIce) on various exp.
1247    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1248    
1249    checkpoint57h_done
1250      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1251      data.diagnostics, data.gchem, data.ptracers) is done.
1252    
1253    o pkg/diagnostics: prepare for Global/Regional statistics.
1254      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1255    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1256      and rename it: DIFFERENT_MULTIPLE
1257    
1258    checkpoint57h_post
1259    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1260    o pkg/diagnostics: change output frequency, now in seconds (instead
1261      of Nb of iterations). This requires to change data.diagnostics.
1262    checkpoint57h_pre
1263    
1264    o in mnc, let the user create the output dir if both mnc_outdir_date
1265      and mnc_outdir_num are false
1266    o add fflags() to pkg/diagnostics which allows one to specify, on a
1267      per-file basis, the file precision [default behavior is unchanged]
1268    o added diagnostics to pkg/kpp, including computation of mixed layer
1269      depth based on a temperature/density criterion
1270    o updated verification/natl_box to test the new pkg/kpp diagnostics
1271    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1272    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1273    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1274      not mnc -- this mistake was found by JMC and is now corrected
1275    
1276    checkpoint57g_post
1277    o add Adams-Bashforth 3rd Order time stepping:
1278      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1279      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1280    checkpoint57g_pre
1281    
1282    o make lambda[Theta,Salt]ClimRelax spatially varying
1283      (default remains spatially uniform constant based on tau)
1284    o added new control variables
1285      * init. uVel, vVel, etanN
1286      * lambda[Theta,Salt]ClimRelax
1287    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1288      (suggested by G. Forget)
1289    
1290    checkpoint57f_post
1291    o add parameter "baseTime" = model base time = time at iteration zero
1292      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1293      account for baseTime shift
1294    o move Coriolis arrays from PARAMS.h to GRID.h
1295    checkpoint57f_pre
1296    
1297    o mnc-ifying the seaice package
1298    o introduced an alternative length scale calculation for use in the limiting
1299      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1300    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1301    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1302      as well as grad(vort3).  Made it compatible with both approximate form
1303      for the cubed sphere and full form of these gradients.  Added flag
1304      useFullLeith to select between approximate and full form.  
1305    o add "d0" in getcon.F to reduce differences between compilers/platforms
1306      update output.txt of exp. fizhi-gridalt-hs
1307    o change port_rand funtion to allow to set the seed.
1308    o fix obscure MNC bug involving conversion between reals and integers
1309      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1310        new version is now more standards-compliant
1311    o adjoint-related modifications
1312      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1313      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1314      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1315    
1316    checkpoint57e_post
1317    o Adding eddy stress controls a la Ferreira et al.
1318    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1319    
1320    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1321      update output.txt of exp. fizhi-gridalt-hs
1322    o add more "Z" dimensions and associated coordinate vars to MNC
1323    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1324    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1325      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1326      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1327      months and years.  Requires pkg/cal.
1328    o diagnostics: add pickup functionality
1329      - off by default for backwards compatibility
1330      - current version only uses MDSIO -- MNC will be added
1331    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1332    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1333    
1334    checkpoint57d_post
1335    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1336    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1337      output from the diagnostics package
1338    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1339    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1340      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1341    o add coordinate variables to the MNC output from the diagnostics package
1342    o change MNC-flags default value: true when useMNC=TRUE
1343    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1344      the ability (off by default) to read the grid information using MNC
1345    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1346    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1347    o do snap-shot diagnostics at the middle of the time-interval (instead of
1348      at the end).
1349    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1350      new test for AIM with thSIce + slab-ocean
1351    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1352    o move state variable diagnostics to the beginning of the time step ;
1353      (note: still needs some work specially for snap-shot diagnostics)
1354      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1355    
1356    checkpoint57c_post
1357    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1358    o generate new output.txt files on faulks with g77 & the new -ieee option
1359    checkpoint57c_pre
1360    
1361    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1362      update output.txt of exp. global_ocean.90x40x15
1363    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1364      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1365    o add saltFlux(+File) forcing capability with periodicExternalForcing
1366    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1367    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1368    o improvements for the MNC output from DIAGNOSTICS:
1369      - correct handling of the unlimitied dimension
1370      - all dims now have associated coordinate variables
1371      - variables located at U, V, and Corner ("Z") points are now written
1372        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1373        *all* data points are output
1374    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1375    o added pkg/seaice/seaice_monitor.F
1376    o mdsio_readfield.F can now read files visible only to master MPI process.
1377    o pkg/seaice: some test code for ice-modified ocean stress
1378    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1379      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1380      spurious negative numbers for precipitation and humidity.  Will cause
1381      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1382    o pkg/ctrl/
1383      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1384        May be enabled via doPackDiag
1385      *  introduce z-scaling of
1386         + gradient (doZscalePack) and
1387         + control (doZscaleUnpack)
1388    o pkg/mdsio/
1389      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1390      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1391    
1392    checkpoint57b_post
1393    o simplify options in diagnostics_fill arguments (remove weird combinations)
1394    o fix MNC coordinate variables so that they now contain per-face index
1395      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1396      general, EXCH2 grids are only aligned to a "local" coordinate system
1397    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1398    o Implement instantaneous output within pkg diagnostics:
1399      setting a negative frequency in data.diagnostics produces
1400     "snap-shot" output (as opposed to time-average if freq > 0)
1401    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1402      NOTE: change ptracer diagnostics name: use 2 characters to work with
1403            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1404    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1405      becomes the coordinate variable for the 'T' dimension
1406    o add CF-style coordinate variables to MNC
1407      - just a first cut:  numbers are meaningless on the cubesphere and
1408        missing along the T axis but otherwise it works!
1409    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1410    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1411    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1412      this is based directly on what the model compute, so that the content of
1413      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1414    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1415    o clean up build options files for SunOS, in particular
1416      - remove -traditional from xmakedepend
1417      - change -xarch=v9 to -xarch=native for f77
1418      - restore use of make (not gmake)
1419      - add CC=gcc if using g77
1420    o changes per discussion of AM, JMC, & EH3 today:
1421      - move redundant "grid" variables out of "state" -- in preparation of
1422        creating proper CF-style coordinate variables and in recognition
1423        that any/all grid variables can be easily copied (eg. w/NCO) from
1424        the grid files into any of the other NetCDF files
1425      - *always* output grid variables with MDSIO (this will eventually be
1426        changed)
1427      - output MNC grid file if useMNC is true
1428    o every instance of _END_MASTER() has been found and replaced with
1429      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1430      preprocessors
1431    o re-arrange diagnostics pkg initialisation:
1432     - allow each package to extend the available diagnostics list
1433     - add some checking and fix small problems (multi-threaded, ...)
1434     - new S/R diagnostics_fill (replace fill_diagnostics):
1435       look through the short list of active diag. (instead of the long list)
1436       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1437    
1438    checkpoint57a_post
1439    o this set of changes restores TAMC compatibility
1440      tested for global_ocean.90x40x15 adjoint on trough
1441      (what a pain)
1442    
1443    checkpoint57a_pre
1444    o some modifs in tools/build_options for sunos
1445    o call ctrl_pack for ctrl at end for optimcycle=0
1446    
1447    checkpoint57
1448    o add horizontal bi-harmonic viscosity for vertical velocity
1449      - new parameter viscA4W (defaults to viscA4)
1450      - affects only non-hydrostatic code
1451      - to be done: no-slip lateral boundary conditions
1452    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1453    o implement Implicit Vertical advection for pTracers
1454    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1455      (implemented also for implicit vertical diffusion & advection)
1456    o OBCS: extend application of tracer open boundary conditions
1457      to a strip beyond the boundary of width Olx/Oly
1458    o add call monitor to TAF set of required calls (flow directives)
1459      and include in natl_box_adjoint
1460    o untangle a few ifdefs related to cost, ctrl, autodiff
1461      untangel a few ALLOW_ECCO_OPTIMIZATION
1462    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1463      (theta2, salt2 in ecco_cost_weights)
1464    
1465    checkpoint56c_post
1466    o OBCS as control variables
1467      - update ctrl_ad_diff.list, obcs_ad_diff.list
1468      - remove balance of obcs controls from default
1469      - fix index bug nobcs in ctrl_init
1470      - fix dummy fields filen in ctrl_pack
1471      - add dummy weights for obcs
1472    o lsopt: comment out fort.94 output
1473    o optim:
1474      - remove unnecessary header files
1475      - adjusted namelists
1476      - add xerbla.F to Makefile
1477    o exf:
1478      - multiple modifications of exf_check_range
1479      - unit change in exf_init_runoff from [m/year] to [m/s]
1480    o mdsio:
1481      - i/o-vector change debugLevel from debLevA to debLevB
1482    
1483    checkpoint56b_post
1484    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1485      is called from DO_THE_MODEL_IO
1486      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1487      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1488      - clean up PTRACERS_WRITE_TIMEAVE a little
1489    o add another verification experiment that tests both the cfc-pkg and
1490      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1491      reactive tendencies treated inline with regular timestepping
1492    o testreport previously did a lousy job of comparing small numbers, so
1493      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1494      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1495      testreport.
1496    o ptracers_monitor: bug fix for MPI
1497    
1498    checkpoint56a_post
1499    o GCHEM: finish reorganizating the package
1500      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1501        (introduces another 3D-array for each passive tracer, but only if
1502        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1503        gchemTendency is not needed because the timestep is done separately)
1504      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1505      - GCHEM is now---more or less cleanly---separate from PTRACERS
1506      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1507        so clear to me how that should be done in a general way.
1508    o CFC: improve formatting of output in CFC_ATMOS
1509    o PTRACERS:
1510      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1511        that ALL experiments with ptracers enable can be checked. This makes
1512        GCHEM_MONITOR obsolete.
1513      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1514        monitorFreq
1515      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1516    o add PTRACERS (PTR0[1-5]) to testreport output
1517    o exf_check_range:
1518      * default changed to .TRUE.
1519      * will check values for niter0 if debLevA, every timestep if debLevB
1520      * STOP in exf_check_range if 'out of range'
1521      * range chosen generous to allow for potential extema
1522      TBD: a version with stricter range
1523           permitted range would be runtime parameters
1524  o GMredi:  o GMredi:
1525    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1526    - 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 1529  o GCHEM:
1529    - 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
1530      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1531    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1532      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1533        this flag is now only visible within GCHEM-pkg routines.
1534      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1535        be replaced by a 3D array that is computed before thermodynamics; for
1536        this, the tracer ID iTracer had to be included into the parameter list
1537        of ptracers_forcing
1538      - set up forward_step to call gchem_forcing, that will replace
1539        gchem_forcing_int in ptracers_forcing
1540      - cleaning up
1541  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
1542    
1543  checkpoint56  checkpoint56

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