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revision 1.392 by mlosch, Tue Nov 23 20:22:12 2004 UTC revision 1.879 by mlosch, Wed Sep 19 09:41:50 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:
8      - bug fix in the evp solver: boundary conditions were affected be
9        masking of zMax/zMin (changes results)
10      - minor bug fix in boundary conditions in seaice_calc_strainrates
11        (changes results for no_slip)
12      - seaice_lsr.F: make interpolation of eta dependent on boundaries
13      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
14      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
15        stress formulation and no-slip boundary conditions
16    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
17      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
18    o pkg/seaice: a first HSALT time stepping equation has been checked in
19    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
20      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
21      without requiring DO-IF statements
22    o pkg/thsice:
23      use continuous power-law function for partition of energy between lateral
24      melting/freezing and thinning/thickening ; old code using step function
25      still available with #undef THSICE_FRACEN_POWERLAW
26      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
27    o testreport: change AD testing : check against results/output_adm.txt
28      using same scripts as for forward test.
29    
30    checkpoint59g
31    o adjoint testing: in preparation for changing testreport:
32      - output format: cost and grad written on separated lines
33      - ad output results in directory "results" (instead of "results_ad")
34    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
35    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
36    o pkg/ecco: allow user defined cost function contributions
37    o testreport:
38      Allow to choose (per experiment) the list of tested output variables
39       and the main variable (used to issue a pass/FAIL ) ;
40      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
41      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
42      Also modify printing of summary:
43       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
44       b) echo the list of tested variables in the individual summary.txt of
45          each experiment.
46    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
47      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
48      (but still depend on the tile decompostion of the domain).
49    o pkg/seaice: change a discretization detail to make the B-grid code
50      "more symmetric". This change is likely to remove all "ridges/leads" that
51      where quasi-aligned with the grid in B-grid solutions. It may also be
52      the solution to the stress coupling issues with the B-grid.
53    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
54      remove .cvsignore from input dir. (since testreport no longer run here).
55    o pkg/thsice:
56     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
57     - fix reshaping of sea-ice just after advection:
58       melt all the ice only if ice-volume is too small.
59     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
60       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
61     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
62    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
63      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
64    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
65      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
66      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
67      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
68      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
69      -> update output.txt
70    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
71     this affects truncation error: -> update output.txt of exp:
72      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
73      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
74    
75    checkpoint59f
76    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
77    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
78      a bounded range (in forward mode)
79    o pkg/ecco, ctrl, autodiff and mom_common:
80     internal parameter controls, completements of implementations
81    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
82    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
83      (not seem any difference in testing results).
84    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
85       at face corners.
86    o pkg/generic_advdiff:
87     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
88      loop range indices for computing vertical advection tendency
89      and do the calculation in the interior only (no overlap) ;
90      for now, only implemented for SOM advection (to save CPU time).
91     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
92    o exch2 adjoint
93      First set of changes:
94      - add exch2 hand-written adjoint templates
95      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
96        This will require cleanup in pkg/autodiff/*.F
97        (changed routines currently kept separate in verif. code/)
98      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
99        that used to hide exch2 or cubed-sphere specific code
100        (commented via 'cph-exch2')
101    o pkg/seaice
102      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
103    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
104       output of global_ocean.cs32x15.thsice .
105    
106    checkpoint59e
107    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
108      for B-grid vector (not yet tested) and C-grid vector (<- only used
109      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
110    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
111      (#ifdef ALLOW_SALT_PLUME)
112    o gather_2d/scatter_2d: removed halo regions
113    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
114      scheme and the corresponding test case (under front_relax dir). For now,
115      only available with Skew-flux form and not yet tested in realistic set-up.
116      adjoint: store directives updated, but gradient checks deteriorated,
117      so maybe GM/Redi adjoint is now broken.
118    o seaice adjoint
119      * add AREA, HEFF, HSNOW as control variable
120        (should not change lab_sea results)
121      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
122    o pkg/seaice:
123      * added computation of saltFlux in seaice_growth;
124        For time being, sea ice salinity is assumed constant
125        contribution of snow flooding to freshening of sea ice is neglected.
126        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
127        defaults to 0.0 in order to maintain backward compatibility.
128        Typical values for SEAICE_salinity are 4 to 10 g/kg.
129      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
130      * added SEAICE_availHeatFrac, which specifies fraction of surface level
131        heat content used to melt or grow ice
132      * commented out cap of HICE: it helps keep ice thinner
133      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
134      * applied OBCS T/S mask to HEFFM sea ice mask
135    
136    checkpoint59d
137    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
138     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
139     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
140    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
141     and change default value of parameter "GM_Small_Number";
142     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
143       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
144       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
145    o pkg/ecco: cost function when applying pkg/smooth to controls
146    o pkg/ctrl: add forcingPrecond run time parameter
147    o pkg/seaice:
148     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
149     - fix bug in metric terms of u-equation in LSR solver (implicit part),
150       changes verification/lab_sea
151     - rearrange implicit part of u-equation in LSR solver to make it easier to
152       read, understand, and debug. This causes changes at the truncation level.
153     - fix (serious) bug in the boundary conditions (sign error in the implicit
154       part) of the LSR solver. Changes all LSR results.
155     - fixed problem with HSNOW initialization to avoid thick snow when AREA
156       is initilized with small values - does not change lab_sea results.
157     - added HsnowFile initialization capability
158    o pkg/smooth: addition to model/src and pkg/ctrl so allow
159     initialization of pkg/smooth and application to control vector
160    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
161    o dependencies: pkg/profiles requires pkg/cal
162    o pkg/profiles:
163     - added option ALLOW_PROFILES_GENERICGRID
164         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
165         that interpolation information (grid points and coefficients) is provided
166         within the netcdf input files.
167         -> sample matlab scripts can be found in MITgcm_contrib/gael
168         that allow you to prepare netcdf input files.
169     - also modified: cleaner include statements, cleaner error print statements,
170       cleaner stops when error, and more tests of the netcdf input files consistency.
171    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
172    o pkg/seaice:
173     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
174       requires a new routine: seaice_diagnostics_fill.F
175     - make sure that seaice does not move if not forced (pressure replacement
176       method, Hibler and Ip, 1995), changes results
177     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
178     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
179       It is turned off by default (=-1.), because it changes the results.
180     - make it possible to read AREA from a file, too.
181    
182    checkpoint59c
183    o add S/R and diagnostics for oceanic mixed-layer depth
184    o move GMRedi call after all vertical mixing schemes (including KPP)
185    o pkg/thsice:
186     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
187      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
188    o pkg/obcs:
189     - bug fix for balance code
190    o pkg/seaice:
191      - allow values of SEAICE_elasticParm > 1
192      - add new parameter SEAICE_evpTauRelax as an alternative
193        to SEAICE_elasticParm
194      - make lsr boundary conditions free slip (by default), changes result
195      - add code for no slip boundary conditions for lsr
196      - set minimum of zeta to zero (and not 4e8) (changes results)
197      - add a cap on AREA after advecting AREA if seaice_growth is not called
198    o change calculation of Visbeck K:
199      - no longer depend on tapering scheme; instead, compute slope (limited
200        by GM_maxSlope). this is equivalent to what was comuted before with
201        clipping or linear tappering.
202      - fix vertical averaging (wrong by 1/2 level)
203      - leave the old version (but will not be maintained) within
204        #ifdef OLD_VISBECK_CALC / #endif
205      - update output of exp. ideal_2D_oce
206    o change error catch in calc_r_star to improve vectorization
207    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
208      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
209    o adjoint:
210      Re-organized adjoint checkpointing according to Matt Mazloff
211      (but with modifs/completions/cleanups)
212      Storing is now bundled into large arrays to optimized I/O
213      (and second step in cleanup of the_main_loop)
214    
215    checkpoint59b
216    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
217      - export/import (between ocean & coupler) fields needed for ocean DIC.
218    o pkg/seaice:
219      - get rid of three more exchanges seaice_calc_viscosities (required
220        different loop boundaries in seaice_lsr and seaice_ocean_stress)
221      - bug fix in seaice_ocean_stress (update of lab_sea required)
222      - reduce loop boundaries to necessary minimum also in seaice_evp
223      - go back to the old way of computing deltaC/Z as the adjoint likes that
224        better
225    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
226      passive tracer to an Age Tracer) + update output.txt
227    o pkg/exf:
228      - implement A-grid / C-grid selection for wind-stress input files.
229      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
230      for now, in exf_bulk_largeyeager04.F only :
231      - change implementation for case where windspeed + 2. components wind-stress
232        are read-in. AND use rhoConstFresh to convert evap.
233    o pkg/seaice:
234      - use correct EXCH_UV for wind-forcing (on A-grid).
235      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
236        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
237    o pkg/exf:
238      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
239      EXF_INTERPOLATION:
240      - merge global_with_exf/code version of exf_interp_read.F
241        to the main code ;
242      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
243        reading the file ; Important: This options needs to be defined to recover
244        previous code.
245        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
246      - no longer loose real*8 precision along the way when using exf_iprec=64.
247    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
248      - change discretisation of evp-solver in order to avoid another exchange
249        (changes lab_sea) and clean up a little
250      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
251        help the adjoint (this also changes the results slightly)
252      - add a few "_d 0" where they had been missing in seaice_evp.F
253      - cleaning up: remove unused seaice_calc_rhs.F
254    o pkg/exf: some cleaning-up:
255      - change various "constants" into runtime parameters
256      - cleaned-up Large&Yeager04 routine which should eventually
257        replace exf_bulkformulae.F (changed names of S/R and CPP)
258        and merged various ALLOW_ATM_WIND options
259     only used with thsice pkg (in thsice_get_exf.F):
260      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
261        which are used when useStabilityFct_overIce=TRUE (= the default)
262      - change default values of ice & snow emissivity and scale downward LW
263        by ice & snow emissivity.
264    o pkg/thsice:
265     fix few little problems, in thsice_calc_thickn.F:
266      - growth vertically (and not laterally) if iceFrac == iceMaskMax
267      - melt only laterally if hIce < hThinIce (as the comments say)
268      and in thsice_extend.F:
269      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
270      - start to form ice as soon as the minimum ice-volume is reachable.
271     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
272      and cpl_aim+ocn
273    o pkg/kpp
274     - move computation of surface related input fields to KPP into a new
275       subroutine kpp_forcing_surf.F
276     - remove wrong (within bi,bj loops) EXCH calls.
277     - little cleaning (add argument myThid in last position, cvs header ...)
278     - for now, fix conservation problem by exchanging KPPviscAz (may not
279       be the best fix)
280    o pkg/seaice
281     - check for inconsistent evp parameter/cpp-flag combination
282     - remove leftover errIO flat for obsolete name list error handling
283    o OpenAD
284     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
285    
286    checkpoint59a
287    o pkg/seaice: some parameter clarifications and a little bit of clean up
288    o pkg/thsice: rename run-time parameters:
289       himin       -> hIceMin
290       himin0      -> hThinIce
291       hihig       -> hThickIce
292       i0          -> i0swFrac
293       transCoef   -> bMeltCoef
294       frac_energy -> fracMelting
295      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
296       with default values (for now) that do not change the results.
297      remove old version of thsice vars advection in pkg/seaice.
298    o in FFIELDS.h:
299      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
300      - make pLoad & sIceLoad always available (but still only used if
301         ATMOSPHERIC_LOADING is #define).
302    o pkg/kpp: replaced _KPP_RL with _RL
303    o bug fixes for vertical diffusivity computations when both KPP and
304        3D diffusivity arrays are used.
305    o pkg/seaice: fix bug in evp solver, while doing that
306      - change (improve?) discretization of stress computations for both
307        cgrid-lsr and evp solver
308      - add a new routine to compute strain rates
309      - the above changes lab_sea results
310      - add no slip conditions for evp solver (off by default), lsr-version
311        may follow
312      - fix exchange for shear at Z-points (does not change lab_sea)
313      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
314        (to force the user to pick a time step since there is not "safe" way
315        of choosing it)
316      - add principal stress diagnostics
317      - rearrange fields for evp a little to avoid having to call a: too many
318        exchanges and b: exchanges for stress trensor components which we do
319        not have.
320      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
321        of evp, complete rewrite for lsr case (latter is does not yet work
322        in all cases)
323    o pkg/kpp: add code to have mixing in shelf ice caverns
324      - add myThid to all kpp routines (long overdue)
325    
326    checkpoint59
327    o pkg/exf:
328      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
329        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
330      - move exf header files from lower_case.h to UPPER_CASE.h ;
331        add missing cvs Header & Name
332      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
333      - add namelist param. selectStressGridPosition, exf_monFreq
334      - retire many _CLIM routines, and remove data.exf_clim
335        + params moved to data.exf
336        + climsst, climsss now handled by exf_set_gen, i.e.
337          climss?period=0 refers to constant field,
338          climss?period=-12 to monthly forcing
339      - split up namelists in data.exf
340    o pkg/seaice:
341      - remove seaice_exch and seaice_exch_uv
342      - remove superfluous exchange of theta
343      - add myThid to seaice_budget_ocean/ice
344      - add new interface for atmospheric wind forcing (C-grid only)
345        + new routine
346        + two new field (taux, tauy for stress over ice)
347        + removed one global field (DAIRN) for C-grid case only
348    o pkg/thsise
349      - 2nd set of modifs for thsice adjoint in conjunction with exf
350    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
351    
352    checkpoint58y_post
353    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
354      vertical diffusivity, similar to that in MOM4; turned on using
355      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
356      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
357    o Added capability for 3D specification of background vertical diffusion
358      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
359      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
360      "data" file that contains the 3D vertical diffusivity coefficients.
361    o ice dynamics (pkg/seaice) with thsice thermodynamics:
362      - add code within pkg thsice to advect & diffuse sea-ice fields
363      similar to (and will replace) what has been added in  seaice_advdiff.F,
364      but: - conserving Mass, Heat & Salt.
365           - better when using non-linear advection scheme (not yet fully tested)
366           - can also be used in atmospheric set-up (for now, only the diffusion).
367    
368    checkpoint58x_post
369    o IO option for global-file compact format:
370      - add options when generating topology (utils/exch2/matlab-topology-generator)
371      - add I/O capability (pkg/mdsio).
372      - adapt utils/matlab/rdmds.m to read this format.
373      for now long-line format not yet supported by pkg/mdsio (& exch2).
374    o shelfice: add a few diagnostics
375    
376    checkpoint58w_post
377    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
378      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
379      (and replace horiVertRatio in NH code).
380      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
381                         and tutorial_plume_on_slope (sensitive to truncation)
382    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
383      directly to drive seaice model (C-grid only)
384    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
385     - reintroduce computation of wind from stress,
386     - compute tau (in exf_bulkformulae.F) from windstress averaged to
387       mass points to avoid tau = 0
388     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
389    o rdmnc.m: make it work with "global" files created with gluemnc
390    o rdmnc.m : some improvements in dealing with singleton dimension
391      (tested on all testreport mnc output files).
392    o genmake2: disable pkg/profiles if netcdf test fails.
393    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
394    o move call to cal_readparms up to make calendar parameters/variable available
395      to all packages
396    
397    checkpoint58v_post
398    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
399      useDynP_inEos_Zc tested.
400    o pkg/exf: changes to properly interpolate/mask/scale initial fields
401    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
402      and portions thereof.  See read_cs.txt for description and examples.
403    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
404      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
405      following the great-circle arc between those 2 points.
406    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
407      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
408    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
409     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
410     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
411     - still needs work (not working with some options ; efficiency to improve)
412       and serious testing.
413     - use this scheme for temperature & salinity in 2 advection test exp.:
414       advect_xy & advect_xz, respectively.
415    
416    checkpoint58u_post
417    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
418    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
419    o testreport: add option "-skipdir" to skip some test.
420    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
421      momentum calculation.
422    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
423    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
424      remove checkpoint.F and the_correction_step.F (no longer used);
425      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
426    o add option (linFSConserveTr) to correct for tracer source/sink due to
427      Linear Free surface
428    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
429    o pkg/thsice: fix reading mnc-pickups
430    
431    checkpoint58t_post
432    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
433    o pkg/mdsio:
434     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
435       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
436       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
437     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
438     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
439       either MDS_READ_FIELD or MDS_WRITE_FIELD )
440     - new S/R (to replace MDSWRITEMETA), which allows to write more
441       informations (variable names, time ...) to meta files.
442     - modify rdmds.m to give back the meta file content.
443    o pkg/diagnostics: change vertical interpolation to be safer, and more
444       flexible (define p-levels to interpolate to in data.diagnostics);
445      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
446       diagnostic pointer.
447    o pkg/seaice: more cleaning up of seaice_growth, added many comments
448    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
449    o fix multi-category seaice:
450     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
451       SEAICE_MULTICATEGORY
452     - fix short wave heat flux
453    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
454       and allow to use EVP solver. Change forward lab_sea: test both EVP
455       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
456    o Initial check-in of lab_sea adjoint
457      (very similar to natl_box_adjoint/code_seaice)
458      * used C-grid and EVP solver
459      * used KPP, GM/Redi
460      * uses inAdExact=.TRUE.
461      * gradient checks fail for both ADM and TLM
462        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
463        f.d. gradients actually seem more problematic than ADM, TLM gradients;
464        issue is related to forward mismatch between g77 an ifort
465    o pkg/seaice: overhaul of thermodynamics
466     - growth.F and groatb.F are replaced by new routine seaice_growth.F
467     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
468     - move a few global fields out of SEAICE.h into seaice_growth.F and
469       make them 2D (FICE/QNETO/ ...)
470     - remove FO (it is the same as QNETO)
471     - introduce a few local fields to avoid modifying external fields such
472       as atemp, etc.
473    
474    checkpoint58s_post
475    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
476      changed exf_set_gen.F so that
477        genperiod=0 means input file is one time-constant field and
478        genperiod=-12 means input file contains 12 monthly means
479    o CG2D: use pre-computed solver main-diagonal (stored in common block);
480      this affects truncation error ; generate new output file for exp. which
481      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
482        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
483        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
484        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
485        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
486        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
487    o start implementation of deep-atmosphere and anelastic formulation
488    o verification: remove 2nd copy of input files and use script "prepare_run"
489      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
490    o mom_common/vecinv/fluxform: fix a few initialisation isssues
491    o profiles: fix for multithreaded case
492    
493    o diagnostics: rename few diags:
494      s/'PRESSURE'/'RCENTER '/g
495      s/'TICE    '/'oceFreez'/g
496      s/'TAUX    '/'oceTAUX '/g
497      s/'TAUY    '/'oceTAUY '/g
498      s/'SWFLUX  '/'oceQsw  '/g
499      s/DIFx/DFxE/g
500      s/DIFy/DFyE/g
501      and add few ocean-forcing diagnostics:
502      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
503    o modifications to pkg/seaice/growth.F and budget.F, which change results of
504      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
505      as actual snow thickness.  It now refers everywhere to effective snow
506      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
507    
508    checkpoint58r_post
509    o modifications to pkg/seaice/growth.F, which change results of
510      lab_sea experiment: fixes pertain to melting snow over open water, to
511      masking EVAP under sea ice, and to using the correct AREA variable for
512      computations of EVAP, PRECIP, HSNOW, and GHEFF
513    o add ability to read bathy, salt, and theta using MNC (off by def)
514    o add flooding algorithm and advection of HSNOW for pkg/seaice;
515      both are turned off by default and do no change any results
516    o seaice advection with pkg/thsice: a step toward the use of non-linear
517      advection scheme, but #ifdef or commented out for now (requires more EXCH).
518    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
519      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
520      in natl_box (affects results @ truncation level: update output.txt)
521    o multi-threading and IO:
522      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
523      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
524        (needed to work with SingleCpuIO): tested in all verif. exp.
525    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
526      affects the results (but none of the verification test uses this scheme).
527    o Adding some pkg/diagnostics capability to pkg/seaice
528      (will certainly be subject to changes)
529    o ctrl: adding new control variables:
530      lwflux, lwdown, evap, snowprecip, apressure, runoff
531    
532    checkpoint58q_post
533    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
534      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
535      high_res_cube configuration by 4% on Columbia.
536    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
537      add (in global_with_exf/code) a version of EXF_INTERP_READ without
538      dynamical allocation (seems to work in multi-threaded).
539    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
540      single CPU io) so that TAF does not have to see EESUPPORT.h
541    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
542    
543    checkpoint58p_post
544    o obcs: stop if obcs is used with useCDscheme = .true.
545    o shelfice:
546     - fix a sign error so that no slip at shelfice interface works
547     - remove stop for combination non-hydrostatic code and shelfice. That does
548       not mean, that the results are correct, but at least they are numerically
549       stable
550    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
551    o added adjoint exch routined for all exch*3d* routines
552      and updated flow directives
553    
554    checkpoint58o_post
555    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
556      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
557    o change controling S/R for writing pickup file (new S/R do_write_pickup)
558      and clean-up reading/writing of pickup files.
559    o fix local version of read/write pickup (NH part) in rotating_tank/code
560    o simplify EXCH interface:
561     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
562     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
563    o added the regrid package
564    o shelfice:
565     - add a simple boundary layer scheme to reduce noise
566     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
567    
568    checkpoint58n_post
569    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
570       local variable (not in common block).
571    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
572      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
573      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
574        to work with SingleCpuIO.
575    o add "_d 0" to real constant of pkg/cfc subroutines ;
576       update exp. cfc_exemple & tutorial_cfc_offline output files.
577    o multi-threading and IO:
578      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
579        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
580      - barrier before and after reading.
581      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
582      - avoid using MDS_WRITELOCAL for LAND pkg output.
583      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
584        common-block variables ; Allows multi-threading with master-thread IO.
585    o change default MAX_NO_THREADS from 32 to 4 ;
586      and stop cleanly when MAX_NO_THREADS is too small.
587    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
588    
589    checkpoint58m_post
590    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
591       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
592    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
593       keep global_ocean.90x40x15 (for AD testing) with former secondary test
594       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
595    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
596        add MITgcm_tutorials (= code + all the tutorials)
597    o ecco, option to compute cost for total ssh (mean+anom)
598    o consistent with addition of ptracer and ssh in pkg/profiles
599    o profiles: adding ptracer and ssh
600    o testreport: change multi-test output-file name
601      (from output.txt.{name} to output.{name}.txt)
602    o profiles: now ok for mutli-tiles case
603    o seaice: add 4 parameters for different advection schemes for area,
604      (effective) seaice thickness, enthalphy, and snow height. Their default
605      is the standard parameter SEAICEadvScheme
606    o calc_gw:
607     - add cosFacU in zonal viscous flux (harmonic.visc.).
608     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
609       of tutorial_plume_on_slope.
610    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
611    o calc_gw: true flux-form, account for horizontal grid spacing.
612      update rotating_tank results, but not plume_on_slope (affected at
613      truncation level, 11 digits).
614    
615    checkpoint58l_post
616    o calc_gw:
617     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
618     - remove side-drag for now (need to fix it); update plume_on_slope results.
619     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
620    o commit code to make SST/SSS weights spatially variable
621      (based on either variable in-situ or variable initial T/S weights)
622    o pkg/ecco:
623      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
624        now based on horizontally varying weights wthetaLev, wsaltLev
625      * cost_averagesflags now returns year indices in addition to day, month
626      * sflux balance is performed on annual basis
627        (sflxumm, sfluxmm2, bal_sfluxmm)
628      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
629        including separate counting and multipliers
630    o pkg/rbcs
631      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
632    
633    checkpoint58k_post
634    o testreport:
635     - always build in dir. "build" (if not there, mkdir build instead of building
636       & running in input)
637     - run in dir run (if it exists), in build otherwise.
638     - call prepare_run (if input/prepare_run exists)
639     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
640    o pkg/exf modifications to interpolation and rotation routines for more
641       reasonable treatment of North Pole singularity: for tracers North Pole
642       value is set to northernmost zonal-mean value, for zonal velocity it is
643       set to zero, and for meridional velocity it is set to northernmost value.
644    o pkg/exf/exf_check_range.F
645     - add tile index to diagnostics and move stop statement to the very
646       end of the routine.
647    o pkg/diagnostics: (diagnostics_main_init.F)
648      define title of isomorphic variables according to the current config.
649    o pkg/thsice with pkg/seaice dynamics:
650    - fix domain of computation (interior only, required for exf) and do exchanges
651    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
652    o towards a standard way of dealing with multi-threading in MONITOR
653      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
654    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
655       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
656    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
657    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
658    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
659       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
660    o tracer advection:
661     - clean-up and simplify calc_common_factors.F
662     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
663       advection subroutine (but still not used within DST advection S/R)
664    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
665    
666    checkpoint58j_post
667    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
668      from file (collects calls previously in FORWARD_STEP)
669    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
670    o adjoint store dir. adjusted accordingly
671    o genmake2
672      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
673    
674    checkpoint58i_post
675    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
676      on wind stress (SEAICEstressFactor defaults to 1.)
677    o Total number of Timers is finite (<=40): comment out 2 non-essential one
678      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
679    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
680      on CS-grid: no longer loosing mass.
681    o exf & curvilinear-grid: no longer modify longitude xC & xG.
682    o pkg/ggl90: fix sloppy output and fix a bug
683    o pkg/seaice: added SEAICEuseEVPpickup parameter
684      - Set to false in order to start EVP solver with
685        non-EVP pickup files when using SEAICEuseEVP
686      - fix sign error in diffusion in seaice_calc_rhs
687    
688    checkpoint58h_post
689    * Modifications for bottom topography control
690      o replace hFacC by _hFacC at various places
691      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
692      o add non-self-adjoint cg2d_nsa
693      o update autodiff support routines
694      o re-initialise hfac after ctrl_depth_ini
695      o works for 5x5 box, doesnt work for global_ocean.90x40x15
696    * Adding verification for 5x5 box (4-layer) bottom topography control
697    
698    checkpoint58g_post
699    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
700       used for mean seasonal cycle, mean diurnal cycle); add an example
701       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
702    o pkg/ggl90:
703      - add parameter (minimum surface kinetic energy)
704      - fix bug (avoiding division by zero)
705    o couple pkg/thsice to pkg/seaice:
706      - modify advection in seaice to accomodate new scalar fields to be advected
707      - only muliDimAdection scheme work with seaice/thsice
708      - mapping of thsice-variables to seaice-variables, back and forth
709      - does not break the verification experiments, but does not give the
710        desired results either
711    o pkg/seaice
712      - make (default) second order advection a bit less confusing?
713    
714    checkpoint58f_post
715    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
716      to pkg/seaice):
717      - new routines thsice_map_exf and thsice_get_exf provide the interface
718      - add an additional formal parameter to thsice_solve4temp
719    o pkg/exf:
720      - add new fields wspeed, snowprecip (to be able to couple to thsice)
721      - correct Stefan-Boltzmann constant
722      - new parameter for longwave surface emittance
723      - separate some stuff from exf_bulkformulae into new routines  
724        exf_radiation, exf_wind
725      - add new parameters and constants: longwave emissivity for ocean, ice
726        and snow, evaporation parameters over ice
727      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
728        either wind from stress or stress from wind
729    o pkg/thSIce:
730    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
731    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
732       and THSICE_CALC_THICKN
733    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
734    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
735      to make debugging easier.
736    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
737    o pkg/bulk_force:
738      - clean-up comments and parameters ;
739      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
740    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
741      generate new output for test-experiment: aim.5l_cs.thSI
742    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
743      testreport accordingly
744    
745    checkpoint58e_post
746    o SEAICE_CGRID adjoint done
747    o R_STAR adjoint implemented.
748      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
749      * need to sort out init. of h0facc, etc.
750    o Make pkg/profile fully independent of ecco,cost, etc. stuff
751      to be able to use it in pure forward.
752    
753    checkpoint58d_post
754    o upgrade simple test-experiment to tutorial example:
755     step.1: duplicate the experiment and (step.2) will remove the old copy.
756      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
757      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
758      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
759      tutorial_global_oce_biogeo    <- copy of dic_example
760      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
761      tutorial_plume_on_slope       <- copy of plume_on_slope
762      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
763      tutorial_global_oce_optim     <- empty for now (David ?)
764      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
765     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
766    o correct a sign problem in cost_scat.F
767    o obcs and ptracers: fix boundary conditions for advections schemes
768      with larger stencil
769    o thsice adjoint: start
770    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
771      completeness
772    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
773      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
774    o ptracers adjoint:
775      * avoid extensive recomputatations
776      * fix missing re-init. of gptr (missed by TAF)
777    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
778      me to turn off the excessive output to STDOUT that this package produces
779    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
780      and add those terms in Vector-Invariant formulation.
781    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
782      if the control period (xx_hfluxperiod etc) is 0
783    o in profiles pkg, clean routines and fix details
784    o in ecco pkg, reading ssh data:
785      fix problem in case the model does not start at iter0=0
786    o fix mnc-pickup/restart for ptracers
787    o new package prifiles:
788      code to compute profile-based cost by Gael Forget
789      (modifs in ecco, ctrl, autodiff)
790    o Benign bug fix in initialization (spotted by M. Mazloff) of
791      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
792    
793    checkpoint58c_post
794    o adjoint: finish NLFS adjoint and provide reference output in
795      verification/global_ocean.90x40x15/results_ad_nlfs
796    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
797      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
798      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
799      with SEAICE_CGRID defined.
800    o move calendarDumps from "data" to "data.cal" and clean-up the code
801      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
802    o add useEXF & useCAL flags (for now, set in hard-coded way)
803    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
804      (were missing in NH mode, and wrong in quasihydrostatic mode).
805      waiting for Chris updated version of calc_gw to add those CALLs.
806    o fix bug in quasihydrostatic S/R ;
807      add a test for this option: global_ocean.90x40x15.qshyd
808    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
809      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
810    o add on/off flag useOffLine for package OFFLINE
811    o seaice:
812      - modify advection so that it works also on the C-grid
813      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
814        problem in multi-tile runs with C-grid
815      - add flags for clipping ice velocities and/or masking solver forcing
816      - fix drag (ocean on ice) formulation and a bug that caused noise in the
817        C-grid solver
818      - added a few comments to seaice_diffusion.F
819      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
820        are now exclusive)
821      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
822        required re-ordering the code a little:
823       + make DAIRN global variable (defined in SEAICE)
824       + move computation of the viscosities eta and zeta into a new separate
825         routine (because I need to recompute them in seaice_ocean_stress.F)
826    
827    checkpoint58b_post
828    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
829      update output.txt of exp. aim.5l_cs.thSI
830    o various mnc cleanups and improvements:
831      + shrink lookup tables by factor of ~4
832      + better error reporting when running out of lookup space
833      + able to handle longer path/file names (up to 500 chars)
834    o adjoint:
835      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
836      - TBD: "hidden" mom_vecinv recomp. in dynamics
837    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
838     (allow to differentiate between forcing components using new integer flags:
839      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
840     and add new flag to put Dissipation tendency out of Adams-Bashforth.
841    o ecco
842      - enable trend removal from SSH anomaly obs.
843    o adjoint
844      - a fix for PmEpR when #undef EXACT_CONSERV
845      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
846      - try to fix "hidden" recomp. in forward_step for NLFS
847        (NLFS seems broken sometimes after I checked it in)
848    o seaice:
849     - add c-grid version of the dynamic solver:
850       + three new routines that are the c-grid substitute lsr, dynsolver
851         and ostres
852       + put a few fields that were local to dynsolver into global common
853         blocks, so that I can move the computation of stresses etc into
854         seaice_lsr (saves coding but may break the adjoint).
855     - replace more hardwired parameters by runtime parameters
856     - add ice masks that mask the rhs of the implicit solvers where there
857       is no ice (commented out in seaice_dynsolver, because i am not sure
858       if this works properly), eventually this should replace the clipping
859       of ice velocities in seaice_dynsolver to +/-40cm/s.
860    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
861      include it only where its needed
862    o move balancing of fluxes before the call of external_forcing_surf
863    o seaice:
864      - correct units of turning angles (now they are really in degrees)
865      - move computation of GWATX/Y out of main routine into dynsolver
866      - initialize GWATX/Y in seaice_init
867    o Apply mask on Fresh-Water flux (needed for SSH forcing).
868      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
869    o seaice: add runtime flags for turning angles (default to zero)
870    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
871      and trend from exf forcing and ctrl control adjustments
872    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
873      (since checkpoint57x_post)
874    o change the default rotation period to 86164.s = the Earth rotation
875    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
876      and based on a reference stratification. Tested within hs94.cs-32x32x5.
877    o seaice advection: add code for choosing between the default (2nd order
878      central differences) and multiDim advection schemes provided by
879      pkg/generic_advdiff
880    o seaice:
881      - removed all references to SEAICE_GRID.h fields from
882        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
883        (cubed-sphere configuration will change a little)
884      - grid computations in seaice_init are obsolete now.
885      - cleaned up code a little so that is easier to read (hopefully).
886      - added new (better?) discretizations of default advection and diffusion
887        (turn on with SEAICEuseFluxForm)
888      - replace 1 in 3d global fields by kSurface in growth.F
889      
890    checkpoint58a_post
891    o seaice:
892      - bug fix in advect.F
893    o shelfice:
894      - separate shelfice load anomaly from pload (breaks with time
895        dependent forcing), => introduce constant field shelficeLoadAnomaly.
896        Its default is 0., but it may be computed more cleverly from (unknown)
897        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
898        done offline. A good approximation of the pressure load anomaly is
899        necessary to avoid large initial adjustment processes underneath
900        deep-reaching shelfice.
901      - small fix in ISOMIP shelfice_thermodynamics
902      - add more sophisticated thermodynamics of Hellmer (1989), this is
903        now the default
904      - give a few constants more intuitive names
905    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
906      if bulk formulae are used in long integration (especially EmPmR). Turn
907      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
908      if balancePrintMean, the imbalance that is substracted is printed to
909      STDOUT.
910    o fix bug (typo) in obcs_apply_eta.F
911    o add a new package shelfice which enables us to model the circulation
912      underneath shelf-ice with draughts of hundreds of meters.
913     - works
914     - to do: + include improved thermodynamics
915              + check whether kSurfC (from model/inc/SURFACE.h) can be used
916                instead of new field kTopC
917              + can we use topoFile, Ro_surf and existing code in ini_depth.F
918                instead of new field R_shelfIce and new code in ini_depth.F
919                and ini_mask_etc.F?
920              + adjust vertical mixing schemes?
921    o seaice pkg:
922     - add a cpp-flag to include a simple formula for a salinity dependent
923       freezing point of sea water at the surface
924     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
925       meridional stresses are now different (and hopefully correct)
926    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
927       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
928       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
929    o pkg/diagnostics: add options and parameters for regional-statistics
930       diagnostics ; define regions by reading a region-mask from a file
931       (might add other options later)
932    o pkg/bulk_force:
933     - add option and parameters to use AIM surface-flux formulae.
934     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
935       others forcing fields (defined in PARM05, parameter file "data") are loaded
936       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
937     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
938     - use the right EXCH call for uwind,vwind (to work on CS-grid).
939     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
940       and parameters (note: calcWindStress replaces .NOT.readwindstress).
941     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
942    
943    checkpoint58
944    o add "--embed-source" option to genmake2 which, when the supporting
945      tools can be compiled (as determined by genmake2) will turn on the
946      embed_files package which then embeds the entire MITgcm source code
947      (*.[fFhc] + Makefile) used for the build within the executable
948      - requested by CNH but off by default
949      - adds a paltry <9MB to the mitgcmuv executable in most cases
950      - only writes the output when useEMBEDSRC in eedata is true
951    o clean up 3-dim. relaxation codes:
952      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
953      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
954      * Thanks to Tom Haine for testing!
955    
956    checkpoint57z_post
957    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
958      affects output (@ truncation level) of exp. plume_on_slope ; updated.
959    o fix the pickup behavior for obcs in combination with ptracers
960    o fix a bug in ptracers_external_fields_load
961    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
962      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
963    o transfered surface NH pressure to eta field (if exactConserv).
964    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
965         and update lab_sea output.txt file.
966    o completing 3-dim. relaxation code: additional term
967         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
968      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
969      * At compile time, in "EXF_OPTIONS.h" set
970          #define  ALLOW_CLIMTEMP_RELAXATION
971          #define  ALLOW_CLIMSALT_RELAXATION
972      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
973          tauThetaClimRelax3Dim = 15552000.0,
974          tauSaltClimRelax3Dim  = 15552000.0,
975      * 3 cases:
976          1) Use a constant-in-time 3-dim. field
977          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
978          3) Real-time relax. to time-evolving prescribed field
979    o Adding Laplacian-type smoothness constraint on
980      initial and boundary (forcing) controls (ic, bc)
981      * enable at compile-time via
982        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
983      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
984      * Absolute scale somewhat unclear so far
985      * no area weighting was included since no other cost term does so far
986    
987    checkpoint57y_post
988    First step for a NLFS adjoint
989    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
990    o new init. routines for calc_r_star, calc_surf_dr
991    o still need to deal with ini_masks_etc
992    o testreport seemed happy
993    checkpoint57y_pre
994    
995    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
996    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
997    o add new offset feature to offline pkg (plus minor cleanup)
998    o cfc fixes for final year of integration
999    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1000      be in GCHEM_OPTIONS).
1001    
1002    checkpoint57x_post
1003    o fix testreport Pb in multiple test experiment.
1004    o cleanup our namelist syntax in verification:
1005      - make it more F95 standards compliant (some work still needed)
1006      - allows the vast majority of our tests to work with gfortran
1007    o Non-Hydrostatic:
1008     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1009     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1010    o Allow to apply AB on T,S rather than on AB(gT,gS):
1011     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1012     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1013       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1014     - need a "clever" read_pickup to restart from the other AB formulation
1015    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1016    o remove some unused variables (reduces number of compiler warnings)
1017    o adjoint
1018      * Disable useVariableViscosity for adjoint for time being
1019        (there are a number of extensive recomputations)
1020      * Initialize certain variables needed for adjoint
1021    
1022    checkpoint57w_post
1023    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1024                 fix the singleCpuIO RS version of MDSWRITEFIELD
1025       and add a WARNING if using globalFiles=T with multi-processors.
1026    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1027      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1028    o tracer advection scheme:
1029      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1030       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1031       was not very convenient).
1032      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1033       (further tests needed for the implicit DST & Flux-Limiter schemes).
1034    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1035      and sRef for convenience, handy, when you want to initialize
1036      ptracers in a large domain with a constant non-zero value. Also,
1037      untangle ptracers_init.F a little.
1038    
1039    checkpoint57v_post
1040    o change dome exp. to use variable viscosity in side-drag terms.
1041    o remove all the files from the cfc_offline test since they are now
1042      incorporated into tutorial_cfc_offline which has been producing
1043      identical results for a few days of testing
1044    o add new parameter: sideDragFactor to enable half-slip-side BC
1045      and change side-drag S/R to use viscosity from mom_calc_visc
1046      (can switch back by setting sideDragFactor=0.); affects results at
1047      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1048       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1049    o vorticity & strain are now computed without masking, to account for
1050      no-slip-side BC in variable viscosity calculation ; mask is applied
1051      anyway later on, before computing advection/coriolis terms.
1052    o modify exp4 to test new obcs support for reading from external files
1053      and for passive tracers
1054    o fix behavior of ptracers_monitor when monitor output is written to a
1055      netcdf-file; still not independent of monitor.F (writes in the same
1056      file).
1057    o change default value of tRef (put a uniform, meaningful value for ocean
1058      & atmos) and initialize sRef (was missing, as Martin mentioned).
1059    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1060      to be proportional to enstrophy dissipation length.  Thus,
1061       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1062      This is now consistent with Smagorinsky and with the manual.
1063    
1064    checkpoint57u_post
1065    o OBCS and PTRACERS: add open boundary support for passive tracers
1066      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1067        OB-values from file; this is not different from the way theta and salinity
1068        are treated
1069      - however, Orlanski-radiation conditions are not supported, and the model
1070        will stop if you use pTracers and Orlanski at the same time.
1071      - beefed up the rountine obcs_external_fields_load: now only those open
1072        boundary values are overwritten with values from files for which there
1073        are really files, otherwise the OB-fields remain untouched. This makes
1074        it possible to use different OBs at different ends of the domain (as
1075        with EXF)
1076    o reduce number of exch calls in shap_filt (s2).
1077    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1078      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1079    
1080    checkpoint57t_post
1081    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1082    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1083      same truncation, independent of the face number: affects affects several
1084      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1085    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1086      note that biharmonic viscosity + no-slip was not tested in any experiment.
1087    o fix bug in non-linear free-surf side-drag ; generate new output for
1088      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1089    o make mnc honor the writeBinaryPrec flag for most kinds of output
1090    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1091    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1092      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1093    o add brackets in multi-terms sum to get same truncation, independent of
1094      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1095      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1096    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1097      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1098      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1099      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1100      Suggested values of viscosity parameters found in mom_calc_visc.
1101      Many new viscosity diagnostics available.
1102    
1103    checkpoint57s_post
1104    o Add clearing-house for viscosity calculations, mom_calc_visc and
1105      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1106      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1107      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1108      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1109      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1110      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1111      ViscAhStrain and viscAhTension are now retired.
1112    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1113    o In response to JMC's bug report, genmake2 now ignores any soft-links
1114      that it finds in the *current* directory when searching for files.
1115      Soft-links found in any other source directories will still work as
1116      they did before.
1117    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1118      a C routine to unlimit the stack size
1119    o mnc-ify pkg/aim snapshot vars
1120    o mnc-ify pkg/land as requested by Daniel
1121    o various changes to mnc including:
1122      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1123      - output can now be grouped so that all files within a group
1124          change the ITER portion of their names in lock-step together
1125      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1126          and works with both EXCH1 and EXCH2 (but needs more testing)
1127      - writing works for all verification test cases w/ g77 on Linux
1128    
1129    checkpoint57r_post
1130    o make MNC variable initialization happen earlier
1131    o add diagnostics for (almost) each term of the momentum Eq.
1132    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1133    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1134    o remove MINIMAL_TAVE_OUTPUT option ;
1135      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1136    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1137      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1138    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1139    o add time-dependent SST, SSS control
1140    o cost terms in ecco/ modularized (new cost_generic.F)
1141    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1142    o new infrastructure for seaice model vs. obs misfits in seaice/
1143      * driver from the_main_loop.F is seaice_cost_driver.F
1144      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1145      * gradient check in Exp. 6a of natl_box_adjoint/
1146    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1147      (see README file)
1148    
1149    checkpoint57q_post
1150    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1151    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1152      - bug was reported by Jean-Michel and Ian Fenty
1153    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1154      update exp. cpl_aim+ocn output.
1155    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1156      Needed for high-res. runs with large global files
1157      to be able to limit tapelev size
1158    o Changed some tests for adjoint:
1159      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1160      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1161      * global_ocean.90x40x15/ back to default 3-level checkpointing
1162    o Modifications to enable scripted COMMON to MODULE conversion
1163      * verification/OpenAD/code/ has necessary scripts and description;
1164      * converts, compiles and runs successfully;
1165    
1166    checkpoint57p_post
1167    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1168    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1169      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1170    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1171    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1172      (was already the case for dissipation with mom_vecinv,
1173       and also the case for grad.PhiHyd when staggered-timeStep)
1174      This will allow to put dissipation out-off the AB time-stepping.
1175     Unfortunately, affects truncation error. Update output of exp. that "fails"
1176      (cg2d matching number) and leave the others for later: front_relax(10),
1177      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1178      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1179    
1180    checkpoint57o_post
1181    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1182      (2) its ready to be documented during the 20050801 DocFest
1183    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1184      for ideal_2D_oce and lab_sea on linux_ia32_g77
1185    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1186      in global1x1_tot/code_seaice_adj to access indices 32, 33
1187      (worth another tag)
1188    
1189    checkpoint57n_post
1190    o adding precip control xx_precip 32
1191    o adding swflux control xx_swflux 33
1192    o Replacing 10 forcing penalty cost routines by 1 generic.
1193    o Implementing partitioning in time-mean and variable adjustment
1194      for atmos. state.
1195    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1196    o in natl_box_adjoint:
1197      * updated exp 1 to 10
1198        (but does not have time-mean vs. variable split results yet)
1199    o updated global1x1/*_seaice_adj/
1200      to incorporate latest changes
1201    o enable useSingleCpuIO for mdsio vector routines
1202      (applies in particular to tapelev I/O)
1203    o removed inefficient K-loop in all active_file*control*.F
1204    
1205    checkpoint57m_post
1206    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1207      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1208    o pkg/exch2: filling of face-corner halo regions is optional
1209      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1210    
1211    checkpoint57l_post
1212     tag before updating tutorials (pre-release-2)
1213    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1214       for output and interpolation of input fields onto model grid)
1215    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1216       Affects results of exp. rotating_tank ; update output.txt.
1217    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1218          and taking the square quantity and/or using a fraction-weight field.
1219    o fix aim_diagnostics_init.F mate numbers.
1220    o add mnc output capability to diagnostics/diagstat and update
1221      our cvsignore files for the ACSII output generated
1222    
1223    checkpoint57k_post
1224    o lab_sea now uses diagnostics package and provides a suite of
1225      new EXF diagnostics output.
1226    
1227    checkpoint57j_post
1228    o exf
1229      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1230        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1231        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1232      * extended diagnostics output
1233        - now includes all EXF variables
1234        - hs, hl moved to common block
1235        - separate S/R for diagnostics, called after ctrl vector is added
1236        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1237        - EXFqnet contains true Qnet (i.e. includes qsw)
1238      * updated verif. lab_sea, global_with_exf
1239      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1240        to ensure that diagnostics sees a true EXFqnet
1241    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1242    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1243      several times with different frequencies.
1244    o mnc-ify the thsice package as requested by Daniel Enderton
1245      - the monitor--MNC output needs work
1246      - many attributes need to be added (most are currently blank)
1247    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1248      - many attributes need to be added (most are currently blank)
1249    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1250    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1251    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1252      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1253         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1254    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1255     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1256    
1257    checkpoint57i_post
1258    o Diagnostics package was changed: diagnostic allocation is now deactivated
1259      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1260    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1261      add 1rst Order upwind vertical Shear.
1262    o add a quick fix for A/B checkpointing in OFFLINE mode
1263    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1264      end-run around the C/Fortran linking horror in eesup/src/timers.F
1265    o added pkg/runclock: allows user to terminate run based on wall clock
1266    o added non-hydrostatic scaling parameter: nh_am2
1267    o pkg/my82: futile attempt to make results compiler-independent by adding
1268      some "_d 0", etc. no effect.
1269    o for mnc output, fill the 'T' coordinate var with myTime and create a
1270      separate 'iter' variable for iteration count
1271    o pkg/diagnostics:
1272      add new capability: output of Global/Regional & per-level statistics ;
1273      tested against monitor output (including land & thSIce) on various exp.
1274    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1275    
1276    checkpoint57h_done
1277      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1278      data.diagnostics, data.gchem, data.ptracers) is done.
1279    
1280    o pkg/diagnostics: prepare for Global/Regional statistics.
1281      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1282    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1283      and rename it: DIFFERENT_MULTIPLE
1284    
1285    checkpoint57h_post
1286    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1287    o pkg/diagnostics: change output frequency, now in seconds (instead
1288      of Nb of iterations). This requires to change data.diagnostics.
1289    checkpoint57h_pre
1290    
1291    o in mnc, let the user create the output dir if both mnc_outdir_date
1292      and mnc_outdir_num are false
1293    o add fflags() to pkg/diagnostics which allows one to specify, on a
1294      per-file basis, the file precision [default behavior is unchanged]
1295    o added diagnostics to pkg/kpp, including computation of mixed layer
1296      depth based on a temperature/density criterion
1297    o updated verification/natl_box to test the new pkg/kpp diagnostics
1298    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1299    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1300    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1301      not mnc -- this mistake was found by JMC and is now corrected
1302    
1303    checkpoint57g_post
1304    o add Adams-Bashforth 3rd Order time stepping:
1305      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1306      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1307    checkpoint57g_pre
1308    
1309    o make lambda[Theta,Salt]ClimRelax spatially varying
1310      (default remains spatially uniform constant based on tau)
1311    o added new control variables
1312      * init. uVel, vVel, etanN
1313      * lambda[Theta,Salt]ClimRelax
1314    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1315      (suggested by G. Forget)
1316    
1317    checkpoint57f_post
1318    o add parameter "baseTime" = model base time = time at iteration zero
1319      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1320      account for baseTime shift
1321    o move Coriolis arrays from PARAMS.h to GRID.h
1322    checkpoint57f_pre
1323    
1324    o mnc-ifying the seaice package
1325    o introduced an alternative length scale calculation for use in the limiting
1326      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1327    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1328    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1329      as well as grad(vort3).  Made it compatible with both approximate form
1330      for the cubed sphere and full form of these gradients.  Added flag
1331      useFullLeith to select between approximate and full form.  
1332    o add "d0" in getcon.F to reduce differences between compilers/platforms
1333      update output.txt of exp. fizhi-gridalt-hs
1334    o change port_rand funtion to allow to set the seed.
1335    o fix obscure MNC bug involving conversion between reals and integers
1336      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1337        new version is now more standards-compliant
1338    o adjoint-related modifications
1339      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1340      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1341      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1342    
1343    checkpoint57e_post
1344    o Adding eddy stress controls a la Ferreira et al.
1345    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1346    
1347    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1348      update output.txt of exp. fizhi-gridalt-hs
1349    o add more "Z" dimensions and associated coordinate vars to MNC
1350    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1351    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1352      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1353      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1354      months and years.  Requires pkg/cal.
1355    o diagnostics: add pickup functionality
1356      - off by default for backwards compatibility
1357      - current version only uses MDSIO -- MNC will be added
1358    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1359    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1360    
1361    checkpoint57d_post
1362    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1363    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1364      output from the diagnostics package
1365    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1366    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1367      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1368    o add coordinate variables to the MNC output from the diagnostics package
1369    o change MNC-flags default value: true when useMNC=TRUE
1370    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1371      the ability (off by default) to read the grid information using MNC
1372    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1373    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1374    o do snap-shot diagnostics at the middle of the time-interval (instead of
1375      at the end).
1376    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1377      new test for AIM with thSIce + slab-ocean
1378    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1379    o move state variable diagnostics to the beginning of the time step ;
1380      (note: still needs some work specially for snap-shot diagnostics)
1381      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1382    
1383    checkpoint57c_post
1384    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1385    o generate new output.txt files on faulks with g77 & the new -ieee option
1386    checkpoint57c_pre
1387    
1388    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1389      update output.txt of exp. global_ocean.90x40x15
1390    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1391      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1392    o add saltFlux(+File) forcing capability with periodicExternalForcing
1393    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1394    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1395    o improvements for the MNC output from DIAGNOSTICS:
1396      - correct handling of the unlimitied dimension
1397      - all dims now have associated coordinate variables
1398      - variables located at U, V, and Corner ("Z") points are now written
1399        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1400        *all* data points are output
1401    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1402    o added pkg/seaice/seaice_monitor.F
1403    o mdsio_readfield.F can now read files visible only to master MPI process.
1404    o pkg/seaice: some test code for ice-modified ocean stress
1405    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1406      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1407      spurious negative numbers for precipitation and humidity.  Will cause
1408      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1409    o pkg/ctrl/
1410      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1411        May be enabled via doPackDiag
1412      *  introduce z-scaling of
1413         + gradient (doZscalePack) and
1414         + control (doZscaleUnpack)
1415    o pkg/mdsio/
1416      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1417      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1418    
1419    checkpoint57b_post
1420    o simplify options in diagnostics_fill arguments (remove weird combinations)
1421    o fix MNC coordinate variables so that they now contain per-face index
1422      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1423      general, EXCH2 grids are only aligned to a "local" coordinate system
1424    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1425    o Implement instantaneous output within pkg diagnostics:
1426      setting a negative frequency in data.diagnostics produces
1427     "snap-shot" output (as opposed to time-average if freq > 0)
1428    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1429      NOTE: change ptracer diagnostics name: use 2 characters to work with
1430            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1431    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1432      becomes the coordinate variable for the 'T' dimension
1433    o add CF-style coordinate variables to MNC
1434      - just a first cut:  numbers are meaningless on the cubesphere and
1435        missing along the T axis but otherwise it works!
1436    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1437    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1438    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1439      this is based directly on what the model compute, so that the content of
1440      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1441    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1442    o clean up build options files for SunOS, in particular
1443      - remove -traditional from xmakedepend
1444      - change -xarch=v9 to -xarch=native for f77
1445      - restore use of make (not gmake)
1446      - add CC=gcc if using g77
1447    o changes per discussion of AM, JMC, & EH3 today:
1448      - move redundant "grid" variables out of "state" -- in preparation of
1449        creating proper CF-style coordinate variables and in recognition
1450        that any/all grid variables can be easily copied (eg. w/NCO) from
1451        the grid files into any of the other NetCDF files
1452      - *always* output grid variables with MDSIO (this will eventually be
1453        changed)
1454      - output MNC grid file if useMNC is true
1455    o every instance of _END_MASTER() has been found and replaced with
1456      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1457      preprocessors
1458    o re-arrange diagnostics pkg initialisation:
1459     - allow each package to extend the available diagnostics list
1460     - add some checking and fix small problems (multi-threaded, ...)
1461     - new S/R diagnostics_fill (replace fill_diagnostics):
1462       look through the short list of active diag. (instead of the long list)
1463       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1464    
1465    checkpoint57a_post
1466    o this set of changes restores TAMC compatibility
1467      tested for global_ocean.90x40x15 adjoint on trough
1468      (what a pain)
1469    
1470    checkpoint57a_pre
1471    o some modifs in tools/build_options for sunos
1472    o call ctrl_pack for ctrl at end for optimcycle=0
1473    
1474    checkpoint57
1475    o add horizontal bi-harmonic viscosity for vertical velocity
1476      - new parameter viscA4W (defaults to viscA4)
1477      - affects only non-hydrostatic code
1478      - to be done: no-slip lateral boundary conditions
1479    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1480    o implement Implicit Vertical advection for pTracers
1481    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1482      (implemented also for implicit vertical diffusion & advection)
1483    o OBCS: extend application of tracer open boundary conditions
1484      to a strip beyond the boundary of width Olx/Oly
1485    o add call monitor to TAF set of required calls (flow directives)
1486      and include in natl_box_adjoint
1487    o untangle a few ifdefs related to cost, ctrl, autodiff
1488      untangel a few ALLOW_ECCO_OPTIMIZATION
1489    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1490      (theta2, salt2 in ecco_cost_weights)
1491    
1492    checkpoint56c_post
1493    o OBCS as control variables
1494      - update ctrl_ad_diff.list, obcs_ad_diff.list
1495      - remove balance of obcs controls from default
1496      - fix index bug nobcs in ctrl_init
1497      - fix dummy fields filen in ctrl_pack
1498      - add dummy weights for obcs
1499    o lsopt: comment out fort.94 output
1500    o optim:
1501      - remove unnecessary header files
1502      - adjusted namelists
1503      - add xerbla.F to Makefile
1504    o exf:
1505      - multiple modifications of exf_check_range
1506      - unit change in exf_init_runoff from [m/year] to [m/s]
1507    o mdsio:
1508      - i/o-vector change debugLevel from debLevA to debLevB
1509    
1510    checkpoint56b_post
1511    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1512      is called from DO_THE_MODEL_IO
1513      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1514      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1515      - clean up PTRACERS_WRITE_TIMEAVE a little
1516    o add another verification experiment that tests both the cfc-pkg and
1517      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1518      reactive tendencies treated inline with regular timestepping
1519    o testreport previously did a lousy job of comparing small numbers, so
1520      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1521      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1522      testreport.
1523    o ptracers_monitor: bug fix for MPI
1524    
1525    checkpoint56a_post
1526    o GCHEM: finish reorganizating the package
1527      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1528        (introduces another 3D-array for each passive tracer, but only if
1529        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1530        gchemTendency is not needed because the timestep is done separately)
1531      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1532      - GCHEM is now---more or less cleanly---separate from PTRACERS
1533      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1534        so clear to me how that should be done in a general way.
1535    o CFC: improve formatting of output in CFC_ATMOS
1536    o PTRACERS:
1537      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1538        that ALL experiments with ptracers enable can be checked. This makes
1539        GCHEM_MONITOR obsolete.
1540      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1541        monitorFreq
1542      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1543    o add PTRACERS (PTR0[1-5]) to testreport output
1544  o exf_check_range:  o exf_check_range:
1545    * default changed to .TRUE.    * default changed to .TRUE.
1546    * will check values for niter0 if debLevA, every timestep if debLevB    * will check values for niter0 if debLevA, every timestep if debLevB
# Line 24  o GCHEM: Line 1562  o GCHEM:
1562      be replaced by a 3D array that is computed before thermodynamics; for      be replaced by a 3D array that is computed before thermodynamics; for
1563      this, the tracer ID iTracer had to be included into the parameter list      this, the tracer ID iTracer had to be included into the parameter list
1564      of ptracers_forcing      of ptracers_forcing
1565    - set up forward_step for a call to gchem_forcing, that will replace    - set up forward_step to call gchem_forcing, that will replace
1566      gchem_forcing_int in ptracers_forcing      gchem_forcing_int in ptracers_forcing
1567    - cleaning up    - cleaning up
1568  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

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