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revision 1.628 by jmc, Mon Mar 13 04:44:25 2006 UTC revision 1.848 by dimitri, Fri Jul 6 02:37:34 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
8      scheme and the corresponding test case (under front_relax dir). For now,
9      only available with Skew-flux form and not yet tested in realistic set-up.
10      adjoint: store directives updated, but gradient checks deteriorated,
11      so maybe GM/Redi adjoint is now broken.
12    o seaice adjoint
13      * add AREA, HEFF, HSNOW as control variable
14        (should not change lab_sea results)
15      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
16    o pkg/seaice:
17      * added computation of saltFlux in seaice_growth;
18        For time being, sea ice salinity is assumed constant
19        contribution of snow flooding to freshening of sea ice is neglected.
20        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
21        defaults to 0.0 in order to maintain backward compatibility.
22        Typical values for SEAICE_salinity are 4 to 10 g/kg.
23      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
24      * added SEAICE_availHeatFrac, which specifies fraction of surface level
25        heat content used to melt or grow ice
26    
27    checkpoint59d
28    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
29     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
30     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
31    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
32     and change default value of parameter "GM_Small_Number";
33     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
34       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
35       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
36    o pkg/ecco: cost function when applying pkg/smooth to controls
37    o pkg/ctrl: add forcingPrecond run time parameter
38    o pkg/seaice:
39     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
40     - fix bug in metric terms of u-equation in LSR solver (implicit part),
41       changes verification/lab_sea
42     - rearrange implicit part of u-equation in LSR solver to make it easier to
43       read, understand, and debug. This causes changes at the truncation level.
44     - fix (serious) bug in the boundary conditions (sign error in the implicit
45       part) of the LSR solver. Changes all LSR results.
46     - fixed problem with HSNOW initialization to avoid thick snow when AREA
47       is initilized with small values - does not change lab_sea results.
48     - added HsnowFile initialization capability
49    o pkg/smooth: addition to model/src and pkg/ctrl so allow
50     initialization of pkg/smooth and application to control vector
51    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
52    o dependencies: pkg/profiles requires pkg/cal
53    o pkg/profiles:
54     - added option ALLOW_PROFILES_GENERICGRID
55         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
56         that interpolation information (grid points and coefficients) is provided
57         within the netcdf input files.
58         -> sample matlab scripts can be found in MITgcm_contrib/gael
59         that allow you to prepare netcdf input files.
60     - also modified: cleaner include statements, cleaner error print statements,
61       cleaner stops when error, and more tests of the netcdf input files consistency.
62    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
63    o pkg/seaice:
64     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
65       requires a new routine: seaice_diagnostics_fill.F
66     - make sure that seaice does not move if not forced (pressure replacement
67       method, Hibler and Ip, 1995), changes results
68     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
69     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
70       It is turned off by default (=-1.), because it changes the results.
71     - make it possible to read AREA from a file, too.
72    
73    checkpoint59c
74    o add S/R and diagnostics for oceanic mixed-layer depth
75    o move GMRedi call after all vertical mixing schemes (including KPP)
76    o pkg/thsice:
77     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
78      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
79    o pkg/obcs:
80     - bug fix for balance code
81    o pkg/seaice:
82      - allow values of SEAICE_elasticParm > 1
83      - add new parameter SEAICE_evpTauRelax as an alternative
84        to SEAICE_elasticParm
85      - make lsr boundary conditions free slip (by default), changes result
86      - add code for no slip boundary conditions for lsr
87      - set minimum of zeta to zero (and not 4e8) (changes results)
88      - add a cap on AREA after advecting AREA if seaice_growth is not called
89    o change calculation of Visbeck K:
90      - no longer depend on tapering scheme; instead, compute slope (limited
91        by GM_maxSlope). this is equivalent to what was comuted before with
92        clipping or linear tappering.
93      - fix vertical averaging (wrong by 1/2 level)
94      - leave the old version (but will not be maintained) within
95        #ifdef OLD_VISBECK_CALC / #endif
96      - update output of exp. ideal_2D_oce
97    o change error catch in calc_r_star to improve vectorization
98    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
99      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
100    o adjoint:
101      Re-organized adjoint checkpointing according to Matt Mazloff
102      (but with modifs/completions/cleanups)
103      Storing is now bundled into large arrays to optimized I/O
104      (and second step in cleanup of the_main_loop)
105    
106    checkpoint59b
107    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
108      - export/import (between ocean & coupler) fields needed for ocean DIC.
109    o pkg/seaice:
110      - get rid of three more exchanges seaice_calc_viscosities (required
111        different loop boundaries in seaice_lsr and seaice_ocean_stress)
112      - bug fix in seaice_ocean_stress (update of lab_sea required)
113      - reduce loop boundaries to necessary minimum also in seaice_evp
114      - go back to the old way of computing deltaC/Z as the adjoint likes that
115        better
116    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
117      passive tracer to an Age Tracer) + update output.txt
118    o pkg/exf:
119      - implement A-grid / C-grid selection for wind-stress input files.
120      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
121      for now, in exf_bulk_largeyeager04.F only :
122      - change implementation for case where windspeed + 2. components wind-stress
123        are read-in. AND use rhoConstFresh to convert evap.
124    o pkg/seaice:
125      - use correct EXCH_UV for wind-forcing (on A-grid).
126      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
127        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
128    o pkg/exf:
129      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
130      EXF_INTERPOLATION:
131      - merge global_with_exf/code version of exf_interp_read.F
132        to the main code ;
133      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
134        reading the file ; Important: This options needs to be defined to recover
135        previous code.
136        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
137      - no longer loose real*8 precision along the way when using exf_iprec=64.
138    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
139      - change discretisation of evp-solver in order to avoid another exchange
140        (changes lab_sea) and clean up a little
141      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
142        help the adjoint (this also changes the results slightly)
143      - add a few "_d 0" where they had been missing in seaice_evp.F
144      - cleaning up: remove unused seaice_calc_rhs.F
145    o pkg/exf: some cleaning-up:
146      - change various "constants" into runtime parameters
147      - cleaned-up Large&Yeager04 routine which should eventually
148        replace exf_bulkformulae.F (changed names of S/R and CPP)
149        and merged various ALLOW_ATM_WIND options
150     only used with thsice pkg (in thsice_get_exf.F):
151      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
152        which are used when useStabilityFct_overIce=TRUE (= the default)
153      - change default values of ice & snow emissivity and scale downward LW
154        by ice & snow emissivity.
155    o pkg/thsice:
156     fix few little problems, in thsice_calc_thickn.F:
157      - growth vertically (and not laterally) if iceFrac == iceMaskMax
158      - melt only laterally if hIce < hThinIce (as the comments say)
159      and in thsice_extend.F:
160      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
161      - start to form ice as soon as the minimum ice-volume is reachable.
162     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
163      and cpl_aim+ocn
164    o pkg/kpp
165     - move computation of surface related input fields to KPP into a new
166       subroutine kpp_forcing_surf.F
167     - remove wrong (within bi,bj loops) EXCH calls.
168     - little cleaning (add argument myThid in last position, cvs header ...)
169     - for now, fix conservation problem by exchanging KPPviscAz (may not
170       be the best fix)
171    o pkg/seaice
172     - check for inconsistent evp parameter/cpp-flag combination
173     - remove leftover errIO flat for obsolete name list error handling
174    o OpenAD
175     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
176    
177    checkpoint59a
178    o pkg/seaice: some parameter clarifications and a little bit of clean up
179    o pkg/thsice: rename run-time parameters:
180       himin       -> hIceMin
181       himin0      -> hThinIce
182       hihig       -> hThickIce
183       i0          -> i0swFrac
184       transCoef   -> bMeltCoef
185       frac_energy -> fracMelting
186      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
187       with default values (for now) that do not change the results.
188      remove old version of thsice vars advection in pkg/seaice.
189    o in FFIELDS.h:
190      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
191      - make pLoad & sIceLoad always available (but still only used if
192         ATMOSPHERIC_LOADING is #define).
193    o pkg/kpp: replaced _KPP_RL with _RL
194    o bug fixes for vertical diffusivity computations when both KPP and
195        3D diffusivity arrays are used.
196    o pkg/seaice: fix bug in evp solver, while doing that
197      - change (improve?) discretization of stress computations for both
198        cgrid-lsr and evp solver
199      - add a new routine to compute strain rates
200      - the above changes lab_sea results
201      - add no slip conditions for evp solver (off by default), lsr-version
202        may follow
203      - fix exchange for shear at Z-points (does not change lab_sea)
204      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
205        (to force the user to pick a time step since there is not "safe" way
206        of choosing it)
207      - add principal stress diagnostics
208      - rearrange fields for evp a little to avoid having to call a: too many
209        exchanges and b: exchanges for stress trensor components which we do
210        not have.
211      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
212        of evp, complete rewrite for lsr case (latter is does not yet work
213        in all cases)
214    o pkg/kpp: add code to have mixing in shelf ice caverns
215      - add myThid to all kpp routines (long overdue)
216    
217    checkpoint59
218    o pkg/exf:
219      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
220        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
221      - move exf header files from lower_case.h to UPPER_CASE.h ;
222        add missing cvs Header & Name
223      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
224      - add namelist param. selectStressGridPosition, exf_monFreq
225      - retire many _CLIM routines, and remove data.exf_clim
226        + params moved to data.exf
227        + climsst, climsss now handled by exf_set_gen, i.e.
228          climss?period=0 refers to constant field,
229          climss?period=-12 to monthly forcing
230      - split up namelists in data.exf
231    o pkg/seaice:
232      - remove seaice_exch and seaice_exch_uv
233      - remove superfluous exchange of theta
234      - add myThid to seaice_budget_ocean/ice
235      - add new interface for atmospheric wind forcing (C-grid only)
236        + new routine
237        + two new field (taux, tauy for stress over ice)
238        + removed one global field (DAIRN) for C-grid case only
239    o pkg/thsise
240      - 2nd set of modifs for thsice adjoint in conjunction with exf
241    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
242    
243    checkpoint58y_post
244    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
245      vertical diffusivity, similar to that in MOM4; turned on using
246      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
247      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
248    o Added capability for 3D specification of background vertical diffusion
249      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
250      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
251      "data" file that contains the 3D vertical diffusivity coefficients.
252    o ice dynamics (pkg/seaice) with thsice thermodynamics:
253      - add code within pkg thsice to advect & diffuse sea-ice fields
254      similar to (and will replace) what has been added in  seaice_advdiff.F,
255      but: - conserving Mass, Heat & Salt.
256           - better when using non-linear advection scheme (not yet fully tested)
257           - can also be used in atmospheric set-up (for now, only the diffusion).
258    
259    checkpoint58x_post
260    o IO option for global-file compact format:
261      - add options when generating topology (utils/exch2/matlab-topology-generator)
262      - add I/O capability (pkg/mdsio).
263      - adapt utils/matlab/rdmds.m to read this format.
264      for now long-line format not yet supported by pkg/mdsio (& exch2).
265    o shelfice: add a few diagnostics
266    
267    checkpoint58w_post
268    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
269      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
270      (and replace horiVertRatio in NH code).
271      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
272                         and tutorial_plume_on_slope (sensitive to truncation)
273    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
274      directly to drive seaice model (C-grid only)
275    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
276     - reintroduce computation of wind from stress,
277     - compute tau (in exf_bulkformulae.F) from windstress averaged to
278       mass points to avoid tau = 0
279     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
280    o rdmnc.m: make it work with "global" files created with gluemnc
281    o rdmnc.m : some improvements in dealing with singleton dimension
282      (tested on all testreport mnc output files).
283    o genmake2: disable pkg/profiles if netcdf test fails.
284    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
285    o move call to cal_readparms up to make calendar parameters/variable available
286      to all packages
287    
288    checkpoint58v_post
289    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
290      useDynP_inEos_Zc tested.
291    o pkg/exf: changes to properly interpolate/mask/scale initial fields
292    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
293      and portions thereof.  See read_cs.txt for description and examples.
294    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
295      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
296      following the great-circle arc between those 2 points.
297    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
298      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
299    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
300     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
301     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
302     - still needs work (not working with some options ; efficiency to improve)
303       and serious testing.
304     - use this scheme for temperature & salinity in 2 advection test exp.:
305       advect_xy & advect_xz, respectively.
306    
307    checkpoint58u_post
308    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
309    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
310    o testreport: add option "-skipdir" to skip some test.
311    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
312      momentum calculation.
313    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
314    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
315      remove checkpoint.F and the_correction_step.F (no longer used);
316      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
317    o add option (linFSConserveTr) to correct for tracer source/sink due to
318      Linear Free surface
319    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
320    o pkg/thsice: fix reading mnc-pickups
321    
322    checkpoint58t_post
323    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
324    o pkg/mdsio:
325     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
326       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
327       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
328     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
329     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
330       either MDS_READ_FIELD or MDS_WRITE_FIELD )
331     - new S/R (to replace MDSWRITEMETA), which allows to write more
332       informations (variable names, time ...) to meta files.
333     - modify rdmds.m to give back the meta file content.
334    o pkg/diagnostics: change vertical interpolation to be safer, and more
335       flexible (define p-levels to interpolate to in data.diagnostics);
336      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
337       diagnostic pointer.
338    o pkg/seaice: more cleaning up of seaice_growth, added many comments
339    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
340    o fix multi-category seaice:
341     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
342       SEAICE_MULTICATEGORY
343     - fix short wave heat flux
344    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
345       and allow to use EVP solver. Change forward lab_sea: test both EVP
346       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
347    o Initial check-in of lab_sea adjoint
348      (very similar to natl_box_adjoint/code_seaice)
349      * used C-grid and EVP solver
350      * used KPP, GM/Redi
351      * uses inAdExact=.TRUE.
352      * gradient checks fail for both ADM and TLM
353        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
354        f.d. gradients actually seem more problematic than ADM, TLM gradients;
355        issue is related to forward mismatch between g77 an ifort
356    o pkg/seaice: overhaul of thermodynamics
357     - growth.F and groatb.F are replaced by new routine seaice_growth.F
358     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
359     - move a few global fields out of SEAICE.h into seaice_growth.F and
360       make them 2D (FICE/QNETO/ ...)
361     - remove FO (it is the same as QNETO)
362     - introduce a few local fields to avoid modifying external fields such
363       as atemp, etc.
364    
365    checkpoint58s_post
366    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
367      changed exf_set_gen.F so that
368        genperiod=0 means input file is one time-constant field and
369        genperiod=-12 means input file contains 12 monthly means
370    o CG2D: use pre-computed solver main-diagonal (stored in common block);
371      this affects truncation error ; generate new output file for exp. which
372      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
373        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
374        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
375        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
376        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
377        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
378    o start implementation of deep-atmosphere and anelastic formulation
379    o verification: remove 2nd copy of input files and use script "prepare_run"
380      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
381    o mom_common/vecinv/fluxform: fix a few initialisation isssues
382    o profiles: fix for multithreaded case
383    
384    o diagnostics: rename few diags:
385      s/'PRESSURE'/'RCENTER '/g
386      s/'TICE    '/'oceFreez'/g
387      s/'TAUX    '/'oceTAUX '/g
388      s/'TAUY    '/'oceTAUY '/g
389      s/'SWFLUX  '/'oceQsw  '/g
390      s/DIFx/DFxE/g
391      s/DIFy/DFyE/g
392      and add few ocean-forcing diagnostics:
393      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
394    o modifications to pkg/seaice/growth.F and budget.F, which change results of
395      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
396      as actual snow thickness.  It now refers everywhere to effective snow
397      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
398    
399    checkpoint58r_post
400    o modifications to pkg/seaice/growth.F, which change results of
401      lab_sea experiment: fixes pertain to melting snow over open water, to
402      masking EVAP under sea ice, and to using the correct AREA variable for
403      computations of EVAP, PRECIP, HSNOW, and GHEFF
404    o add ability to read bathy, salt, and theta using MNC (off by def)
405    o add flooding algorithm and advection of HSNOW for pkg/seaice;
406      both are turned off by default and do no change any results
407    o seaice advection with pkg/thsice: a step toward the use of non-linear
408      advection scheme, but #ifdef or commented out for now (requires more EXCH).
409    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
410      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
411      in natl_box (affects results @ truncation level: update output.txt)
412    o multi-threading and IO:
413      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
414      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
415        (needed to work with SingleCpuIO): tested in all verif. exp.
416    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
417      affects the results (but none of the verification test uses this scheme).
418    o Adding some pkg/diagnostics capability to pkg/seaice
419      (will certainly be subject to changes)
420    o ctrl: adding new control variables:
421      lwflux, lwdown, evap, snowprecip, apressure, runoff
422    
423    checkpoint58q_post
424    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
425      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
426      high_res_cube configuration by 4% on Columbia.
427    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
428      add (in global_with_exf/code) a version of EXF_INTERP_READ without
429      dynamical allocation (seems to work in multi-threaded).
430    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
431      single CPU io) so that TAF does not have to see EESUPPORT.h
432    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
433    
434    checkpoint58p_post
435    o obcs: stop if obcs is used with useCDscheme = .true.
436    o shelfice:
437     - fix a sign error so that no slip at shelfice interface works
438     - remove stop for combination non-hydrostatic code and shelfice. That does
439       not mean, that the results are correct, but at least they are numerically
440       stable
441    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
442    o added adjoint exch routined for all exch*3d* routines
443      and updated flow directives
444    
445    checkpoint58o_post
446    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
447      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
448    o change controling S/R for writing pickup file (new S/R do_write_pickup)
449      and clean-up reading/writing of pickup files.
450    o fix local version of read/write pickup (NH part) in rotating_tank/code
451    o simplify EXCH interface:
452     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
453     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
454    o added the regrid package
455    o shelfice:
456     - add a simple boundary layer scheme to reduce noise
457     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
458    
459    checkpoint58n_post
460    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
461       local variable (not in common block).
462    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
463      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
464      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
465        to work with SingleCpuIO.
466    o add "_d 0" to real constant of pkg/cfc subroutines ;
467       update exp. cfc_exemple & tutorial_cfc_offline output files.
468    o multi-threading and IO:
469      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
470        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
471      - barrier before and after reading.
472      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
473      - avoid using MDS_WRITELOCAL for LAND pkg output.
474      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
475        common-block variables ; Allows multi-threading with master-thread IO.
476    o change default MAX_NO_THREADS from 32 to 4 ;
477      and stop cleanly when MAX_NO_THREADS is too small.
478    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
479    
480    checkpoint58m_post
481    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
482       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
483    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
484       keep global_ocean.90x40x15 (for AD testing) with former secondary test
485       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
486    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
487        add MITgcm_tutorials (= code + all the tutorials)
488    o ecco, option to compute cost for total ssh (mean+anom)
489    o consistent with addition of ptracer and ssh in pkg/profiles
490    o profiles: adding ptracer and ssh
491    o testreport: change multi-test output-file name
492      (from output.txt.{name} to output.{name}.txt)
493    o profiles: now ok for mutli-tiles case
494    o seaice: add 4 parameters for different advection schemes for area,
495      (effective) seaice thickness, enthalphy, and snow height. Their default
496      is the standard parameter SEAICEadvScheme
497    o calc_gw:
498     - add cosFacU in zonal viscous flux (harmonic.visc.).
499     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
500       of tutorial_plume_on_slope.
501    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
502    o calc_gw: true flux-form, account for horizontal grid spacing.
503      update rotating_tank results, but not plume_on_slope (affected at
504      truncation level, 11 digits).
505    
506    checkpoint58l_post
507    o calc_gw:
508     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
509     - remove side-drag for now (need to fix it); update plume_on_slope results.
510     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
511    o commit code to make SST/SSS weights spatially variable
512      (based on either variable in-situ or variable initial T/S weights)
513    o pkg/ecco:
514      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
515        now based on horizontally varying weights wthetaLev, wsaltLev
516      * cost_averagesflags now returns year indices in addition to day, month
517      * sflux balance is performed on annual basis
518        (sflxumm, sfluxmm2, bal_sfluxmm)
519      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
520        including separate counting and multipliers
521    o pkg/rbcs
522      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
523    
524    checkpoint58k_post
525    o testreport:
526     - always build in dir. "build" (if not there, mkdir build instead of building
527       & running in input)
528     - run in dir run (if it exists), in build otherwise.
529     - call prepare_run (if input/prepare_run exists)
530     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
531    o pkg/exf modifications to interpolation and rotation routines for more
532       reasonable treatment of North Pole singularity: for tracers North Pole
533       value is set to northernmost zonal-mean value, for zonal velocity it is
534       set to zero, and for meridional velocity it is set to northernmost value.
535    o pkg/exf/exf_check_range.F
536     - add tile index to diagnostics and move stop statement to the very
537       end of the routine.
538    o pkg/diagnostics: (diagnostics_main_init.F)
539      define title of isomorphic variables according to the current config.
540    o pkg/thsice with pkg/seaice dynamics:
541    - fix domain of computation (interior only, required for exf) and do exchanges
542    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
543    o towards a standard way of dealing with multi-threading in MONITOR
544      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
545    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
546       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
547    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
548    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
549    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
550       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
551    o tracer advection:
552     - clean-up and simplify calc_common_factors.F
553     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
554       advection subroutine (but still not used within DST advection S/R)
555    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
556    
557    checkpoint58j_post
558    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
559      from file (collects calls previously in FORWARD_STEP)
560    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
561    o adjoint store dir. adjusted accordingly
562    o genmake2
563      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
564    
565    checkpoint58i_post
566    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
567      on wind stress (SEAICEstressFactor defaults to 1.)
568    o Total number of Timers is finite (<=40): comment out 2 non-essential one
569      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
570    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
571      on CS-grid: no longer loosing mass.
572    o exf & curvilinear-grid: no longer modify longitude xC & xG.
573    o pkg/ggl90: fix sloppy output and fix a bug
574    o pkg/seaice: added SEAICEuseEVPpickup parameter
575      - Set to false in order to start EVP solver with
576        non-EVP pickup files when using SEAICEuseEVP
577      - fix sign error in diffusion in seaice_calc_rhs
578    
579    checkpoint58h_post
580    * Modifications for bottom topography control
581      o replace hFacC by _hFacC at various places
582      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
583      o add non-self-adjoint cg2d_nsa
584      o update autodiff support routines
585      o re-initialise hfac after ctrl_depth_ini
586      o works for 5x5 box, doesnt work for global_ocean.90x40x15
587    * Adding verification for 5x5 box (4-layer) bottom topography control
588    
589    checkpoint58g_post
590    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
591       used for mean seasonal cycle, mean diurnal cycle); add an example
592       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
593    o pkg/ggl90:
594      - add parameter (minimum surface kinetic energy)
595      - fix bug (avoiding division by zero)
596    o couple pkg/thsice to pkg/seaice:
597      - modify advection in seaice to accomodate new scalar fields to be advected
598      - only muliDimAdection scheme work with seaice/thsice
599      - mapping of thsice-variables to seaice-variables, back and forth
600      - does not break the verification experiments, but does not give the
601        desired results either
602    o pkg/seaice
603      - make (default) second order advection a bit less confusing?
604    
605    checkpoint58f_post
606    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
607      to pkg/seaice):
608      - new routines thsice_map_exf and thsice_get_exf provide the interface
609      - add an additional formal parameter to thsice_solve4temp
610    o pkg/exf:
611      - add new fields wspeed, snowprecip (to be able to couple to thsice)
612      - correct Stefan-Boltzmann constant
613      - new parameter for longwave surface emittance
614      - separate some stuff from exf_bulkformulae into new routines  
615        exf_radiation, exf_wind
616      - add new parameters and constants: longwave emissivity for ocean, ice
617        and snow, evaporation parameters over ice
618      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
619        either wind from stress or stress from wind
620    o pkg/thSIce:
621    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
622    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
623       and THSICE_CALC_THICKN
624    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
625    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
626      to make debugging easier.
627    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
628    o pkg/bulk_force:
629      - clean-up comments and parameters ;
630      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
631    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
632      generate new output for test-experiment: aim.5l_cs.thSI
633    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
634      testreport accordingly
635    
636    checkpoint58e_post
637    o SEAICE_CGRID adjoint done
638    o R_STAR adjoint implemented.
639      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
640      * need to sort out init. of h0facc, etc.
641    o Make pkg/profile fully independent of ecco,cost, etc. stuff
642      to be able to use it in pure forward.
643    
644    checkpoint58d_post
645    o upgrade simple test-experiment to tutorial example:
646     step.1: duplicate the experiment and (step.2) will remove the old copy.
647      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
648      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
649      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
650      tutorial_global_oce_biogeo    <- copy of dic_example
651      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
652      tutorial_plume_on_slope       <- copy of plume_on_slope
653      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
654      tutorial_global_oce_optim     <- empty for now (David ?)
655      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
656     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
657    o correct a sign problem in cost_scat.F
658    o obcs and ptracers: fix boundary conditions for advections schemes
659      with larger stencil
660    o thsice adjoint: start
661    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
662      completeness
663    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
664      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
665    o ptracers adjoint:
666      * avoid extensive recomputatations
667      * fix missing re-init. of gptr (missed by TAF)
668    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
669      me to turn off the excessive output to STDOUT that this package produces
670    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
671      and add those terms in Vector-Invariant formulation.
672    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
673      if the control period (xx_hfluxperiod etc) is 0
674    o in profiles pkg, clean routines and fix details
675    o in ecco pkg, reading ssh data:
676      fix problem in case the model does not start at iter0=0
677    o fix mnc-pickup/restart for ptracers
678    o new package prifiles:
679      code to compute profile-based cost by Gael Forget
680      (modifs in ecco, ctrl, autodiff)
681    o Benign bug fix in initialization (spotted by M. Mazloff) of
682      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
683    
684    checkpoint58c_post
685    o adjoint: finish NLFS adjoint and provide reference output in
686      verification/global_ocean.90x40x15/results_ad_nlfs
687    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
688      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
689      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
690      with SEAICE_CGRID defined.
691    o move calendarDumps from "data" to "data.cal" and clean-up the code
692      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
693    o add useEXF & useCAL flags (for now, set in hard-coded way)
694    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
695      (were missing in NH mode, and wrong in quasihydrostatic mode).
696      waiting for Chris updated version of calc_gw to add those CALLs.
697    o fix bug in quasihydrostatic S/R ;
698      add a test for this option: global_ocean.90x40x15.qshyd
699    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
700      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
701    o add on/off flag useOffLine for package OFFLINE
702    o seaice:
703      - modify advection so that it works also on the C-grid
704      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
705        problem in multi-tile runs with C-grid
706      - add flags for clipping ice velocities and/or masking solver forcing
707      - fix drag (ocean on ice) formulation and a bug that caused noise in the
708        C-grid solver
709      - added a few comments to seaice_diffusion.F
710      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
711        are now exclusive)
712      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
713        required re-ordering the code a little:
714       + make DAIRN global variable (defined in SEAICE)
715       + move computation of the viscosities eta and zeta into a new separate
716         routine (because I need to recompute them in seaice_ocean_stress.F)
717    
718  checkpoint58b_post  checkpoint58b_post
719  o AIM+thSIce: fix sign of Short-Wave through the Ice ;  o AIM+thSIce: fix sign of Short-Wave through the Ice ;
720    update output.txt of exp. aim.5l_cs.thSI    update output.txt of exp. aim.5l_cs.thSI

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