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revision 1.643 by jmc, Thu Mar 30 20:59:21 2006 UTC revision 1.854 by jmc, Thu Jul 26 16:30:48 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59e
8    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
9      for B-grid vector (not yet tested) and C-grid vector (<- only used
10      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
11    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
12      (#ifdef ALLOW_SALT_PLUME)
13    o gather_2d/scatter_2d: removed halo regions
14    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
15      scheme and the corresponding test case (under front_relax dir). For now,
16      only available with Skew-flux form and not yet tested in realistic set-up.
17      adjoint: store directives updated, but gradient checks deteriorated,
18      so maybe GM/Redi adjoint is now broken.
19    o seaice adjoint
20      * add AREA, HEFF, HSNOW as control variable
21        (should not change lab_sea results)
22      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
23    o pkg/seaice:
24      * added computation of saltFlux in seaice_growth;
25        For time being, sea ice salinity is assumed constant
26        contribution of snow flooding to freshening of sea ice is neglected.
27        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
28        defaults to 0.0 in order to maintain backward compatibility.
29        Typical values for SEAICE_salinity are 4 to 10 g/kg.
30      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
31      * added SEAICE_availHeatFrac, which specifies fraction of surface level
32        heat content used to melt or grow ice
33      * commented out cap of HICE: it helps keep ice thinner
34      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
35      * applied OBCS T/S mask to HEFFM sea ice mask
36    
37    checkpoint59d
38    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
39     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
40     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
41    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
42     and change default value of parameter "GM_Small_Number";
43     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
44       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
45       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
46    o pkg/ecco: cost function when applying pkg/smooth to controls
47    o pkg/ctrl: add forcingPrecond run time parameter
48    o pkg/seaice:
49     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
50     - fix bug in metric terms of u-equation in LSR solver (implicit part),
51       changes verification/lab_sea
52     - rearrange implicit part of u-equation in LSR solver to make it easier to
53       read, understand, and debug. This causes changes at the truncation level.
54     - fix (serious) bug in the boundary conditions (sign error in the implicit
55       part) of the LSR solver. Changes all LSR results.
56     - fixed problem with HSNOW initialization to avoid thick snow when AREA
57       is initilized with small values - does not change lab_sea results.
58     - added HsnowFile initialization capability
59    o pkg/smooth: addition to model/src and pkg/ctrl so allow
60     initialization of pkg/smooth and application to control vector
61    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
62    o dependencies: pkg/profiles requires pkg/cal
63    o pkg/profiles:
64     - added option ALLOW_PROFILES_GENERICGRID
65         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
66         that interpolation information (grid points and coefficients) is provided
67         within the netcdf input files.
68         -> sample matlab scripts can be found in MITgcm_contrib/gael
69         that allow you to prepare netcdf input files.
70     - also modified: cleaner include statements, cleaner error print statements,
71       cleaner stops when error, and more tests of the netcdf input files consistency.
72    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
73    o pkg/seaice:
74     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
75       requires a new routine: seaice_diagnostics_fill.F
76     - make sure that seaice does not move if not forced (pressure replacement
77       method, Hibler and Ip, 1995), changes results
78     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
79     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
80       It is turned off by default (=-1.), because it changes the results.
81     - make it possible to read AREA from a file, too.
82    
83    checkpoint59c
84    o add S/R and diagnostics for oceanic mixed-layer depth
85    o move GMRedi call after all vertical mixing schemes (including KPP)
86    o pkg/thsice:
87     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
88      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
89    o pkg/obcs:
90     - bug fix for balance code
91    o pkg/seaice:
92      - allow values of SEAICE_elasticParm > 1
93      - add new parameter SEAICE_evpTauRelax as an alternative
94        to SEAICE_elasticParm
95      - make lsr boundary conditions free slip (by default), changes result
96      - add code for no slip boundary conditions for lsr
97      - set minimum of zeta to zero (and not 4e8) (changes results)
98      - add a cap on AREA after advecting AREA if seaice_growth is not called
99    o change calculation of Visbeck K:
100      - no longer depend on tapering scheme; instead, compute slope (limited
101        by GM_maxSlope). this is equivalent to what was comuted before with
102        clipping or linear tappering.
103      - fix vertical averaging (wrong by 1/2 level)
104      - leave the old version (but will not be maintained) within
105        #ifdef OLD_VISBECK_CALC / #endif
106      - update output of exp. ideal_2D_oce
107    o change error catch in calc_r_star to improve vectorization
108    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
109      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
110    o adjoint:
111      Re-organized adjoint checkpointing according to Matt Mazloff
112      (but with modifs/completions/cleanups)
113      Storing is now bundled into large arrays to optimized I/O
114      (and second step in cleanup of the_main_loop)
115    
116    checkpoint59b
117    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
118      - export/import (between ocean & coupler) fields needed for ocean DIC.
119    o pkg/seaice:
120      - get rid of three more exchanges seaice_calc_viscosities (required
121        different loop boundaries in seaice_lsr and seaice_ocean_stress)
122      - bug fix in seaice_ocean_stress (update of lab_sea required)
123      - reduce loop boundaries to necessary minimum also in seaice_evp
124      - go back to the old way of computing deltaC/Z as the adjoint likes that
125        better
126    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
127      passive tracer to an Age Tracer) + update output.txt
128    o pkg/exf:
129      - implement A-grid / C-grid selection for wind-stress input files.
130      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
131      for now, in exf_bulk_largeyeager04.F only :
132      - change implementation for case where windspeed + 2. components wind-stress
133        are read-in. AND use rhoConstFresh to convert evap.
134    o pkg/seaice:
135      - use correct EXCH_UV for wind-forcing (on A-grid).
136      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
137        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
138    o pkg/exf:
139      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
140      EXF_INTERPOLATION:
141      - merge global_with_exf/code version of exf_interp_read.F
142        to the main code ;
143      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
144        reading the file ; Important: This options needs to be defined to recover
145        previous code.
146        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
147      - no longer loose real*8 precision along the way when using exf_iprec=64.
148    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
149      - change discretisation of evp-solver in order to avoid another exchange
150        (changes lab_sea) and clean up a little
151      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
152        help the adjoint (this also changes the results slightly)
153      - add a few "_d 0" where they had been missing in seaice_evp.F
154      - cleaning up: remove unused seaice_calc_rhs.F
155    o pkg/exf: some cleaning-up:
156      - change various "constants" into runtime parameters
157      - cleaned-up Large&Yeager04 routine which should eventually
158        replace exf_bulkformulae.F (changed names of S/R and CPP)
159        and merged various ALLOW_ATM_WIND options
160     only used with thsice pkg (in thsice_get_exf.F):
161      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
162        which are used when useStabilityFct_overIce=TRUE (= the default)
163      - change default values of ice & snow emissivity and scale downward LW
164        by ice & snow emissivity.
165    o pkg/thsice:
166     fix few little problems, in thsice_calc_thickn.F:
167      - growth vertically (and not laterally) if iceFrac == iceMaskMax
168      - melt only laterally if hIce < hThinIce (as the comments say)
169      and in thsice_extend.F:
170      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
171      - start to form ice as soon as the minimum ice-volume is reachable.
172     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
173      and cpl_aim+ocn
174    o pkg/kpp
175     - move computation of surface related input fields to KPP into a new
176       subroutine kpp_forcing_surf.F
177     - remove wrong (within bi,bj loops) EXCH calls.
178     - little cleaning (add argument myThid in last position, cvs header ...)
179     - for now, fix conservation problem by exchanging KPPviscAz (may not
180       be the best fix)
181    o pkg/seaice
182     - check for inconsistent evp parameter/cpp-flag combination
183     - remove leftover errIO flat for obsolete name list error handling
184    o OpenAD
185     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
186    
187    checkpoint59a
188    o pkg/seaice: some parameter clarifications and a little bit of clean up
189    o pkg/thsice: rename run-time parameters:
190       himin       -> hIceMin
191       himin0      -> hThinIce
192       hihig       -> hThickIce
193       i0          -> i0swFrac
194       transCoef   -> bMeltCoef
195       frac_energy -> fracMelting
196      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
197       with default values (for now) that do not change the results.
198      remove old version of thsice vars advection in pkg/seaice.
199    o in FFIELDS.h:
200      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
201      - make pLoad & sIceLoad always available (but still only used if
202         ATMOSPHERIC_LOADING is #define).
203    o pkg/kpp: replaced _KPP_RL with _RL
204    o bug fixes for vertical diffusivity computations when both KPP and
205        3D diffusivity arrays are used.
206    o pkg/seaice: fix bug in evp solver, while doing that
207      - change (improve?) discretization of stress computations for both
208        cgrid-lsr and evp solver
209      - add a new routine to compute strain rates
210      - the above changes lab_sea results
211      - add no slip conditions for evp solver (off by default), lsr-version
212        may follow
213      - fix exchange for shear at Z-points (does not change lab_sea)
214      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
215        (to force the user to pick a time step since there is not "safe" way
216        of choosing it)
217      - add principal stress diagnostics
218      - rearrange fields for evp a little to avoid having to call a: too many
219        exchanges and b: exchanges for stress trensor components which we do
220        not have.
221      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
222        of evp, complete rewrite for lsr case (latter is does not yet work
223        in all cases)
224    o pkg/kpp: add code to have mixing in shelf ice caverns
225      - add myThid to all kpp routines (long overdue)
226    
227    checkpoint59
228    o pkg/exf:
229      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
230        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
231      - move exf header files from lower_case.h to UPPER_CASE.h ;
232        add missing cvs Header & Name
233      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
234      - add namelist param. selectStressGridPosition, exf_monFreq
235      - retire many _CLIM routines, and remove data.exf_clim
236        + params moved to data.exf
237        + climsst, climsss now handled by exf_set_gen, i.e.
238          climss?period=0 refers to constant field,
239          climss?period=-12 to monthly forcing
240      - split up namelists in data.exf
241    o pkg/seaice:
242      - remove seaice_exch and seaice_exch_uv
243      - remove superfluous exchange of theta
244      - add myThid to seaice_budget_ocean/ice
245      - add new interface for atmospheric wind forcing (C-grid only)
246        + new routine
247        + two new field (taux, tauy for stress over ice)
248        + removed one global field (DAIRN) for C-grid case only
249    o pkg/thsise
250      - 2nd set of modifs for thsice adjoint in conjunction with exf
251    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
252    
253    checkpoint58y_post
254    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
255      vertical diffusivity, similar to that in MOM4; turned on using
256      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
257      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
258    o Added capability for 3D specification of background vertical diffusion
259      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
260      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
261      "data" file that contains the 3D vertical diffusivity coefficients.
262    o ice dynamics (pkg/seaice) with thsice thermodynamics:
263      - add code within pkg thsice to advect & diffuse sea-ice fields
264      similar to (and will replace) what has been added in  seaice_advdiff.F,
265      but: - conserving Mass, Heat & Salt.
266           - better when using non-linear advection scheme (not yet fully tested)
267           - can also be used in atmospheric set-up (for now, only the diffusion).
268    
269    checkpoint58x_post
270    o IO option for global-file compact format:
271      - add options when generating topology (utils/exch2/matlab-topology-generator)
272      - add I/O capability (pkg/mdsio).
273      - adapt utils/matlab/rdmds.m to read this format.
274      for now long-line format not yet supported by pkg/mdsio (& exch2).
275    o shelfice: add a few diagnostics
276    
277    checkpoint58w_post
278    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
279      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
280      (and replace horiVertRatio in NH code).
281      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
282                         and tutorial_plume_on_slope (sensitive to truncation)
283    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
284      directly to drive seaice model (C-grid only)
285    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
286     - reintroduce computation of wind from stress,
287     - compute tau (in exf_bulkformulae.F) from windstress averaged to
288       mass points to avoid tau = 0
289     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
290    o rdmnc.m: make it work with "global" files created with gluemnc
291    o rdmnc.m : some improvements in dealing with singleton dimension
292      (tested on all testreport mnc output files).
293    o genmake2: disable pkg/profiles if netcdf test fails.
294    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
295    o move call to cal_readparms up to make calendar parameters/variable available
296      to all packages
297    
298    checkpoint58v_post
299    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
300      useDynP_inEos_Zc tested.
301    o pkg/exf: changes to properly interpolate/mask/scale initial fields
302    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
303      and portions thereof.  See read_cs.txt for description and examples.
304    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
305      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
306      following the great-circle arc between those 2 points.
307    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
308      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
309    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
310     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
311     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
312     - still needs work (not working with some options ; efficiency to improve)
313       and serious testing.
314     - use this scheme for temperature & salinity in 2 advection test exp.:
315       advect_xy & advect_xz, respectively.
316    
317    checkpoint58u_post
318    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
319    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
320    o testreport: add option "-skipdir" to skip some test.
321    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
322      momentum calculation.
323    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
324    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
325      remove checkpoint.F and the_correction_step.F (no longer used);
326      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
327    o add option (linFSConserveTr) to correct for tracer source/sink due to
328      Linear Free surface
329    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
330    o pkg/thsice: fix reading mnc-pickups
331    
332    checkpoint58t_post
333    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
334    o pkg/mdsio:
335     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
336       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
337       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
338     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
339     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
340       either MDS_READ_FIELD or MDS_WRITE_FIELD )
341     - new S/R (to replace MDSWRITEMETA), which allows to write more
342       informations (variable names, time ...) to meta files.
343     - modify rdmds.m to give back the meta file content.
344    o pkg/diagnostics: change vertical interpolation to be safer, and more
345       flexible (define p-levels to interpolate to in data.diagnostics);
346      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
347       diagnostic pointer.
348    o pkg/seaice: more cleaning up of seaice_growth, added many comments
349    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
350    o fix multi-category seaice:
351     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
352       SEAICE_MULTICATEGORY
353     - fix short wave heat flux
354    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
355       and allow to use EVP solver. Change forward lab_sea: test both EVP
356       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
357    o Initial check-in of lab_sea adjoint
358      (very similar to natl_box_adjoint/code_seaice)
359      * used C-grid and EVP solver
360      * used KPP, GM/Redi
361      * uses inAdExact=.TRUE.
362      * gradient checks fail for both ADM and TLM
363        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
364        f.d. gradients actually seem more problematic than ADM, TLM gradients;
365        issue is related to forward mismatch between g77 an ifort
366    o pkg/seaice: overhaul of thermodynamics
367     - growth.F and groatb.F are replaced by new routine seaice_growth.F
368     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
369     - move a few global fields out of SEAICE.h into seaice_growth.F and
370       make them 2D (FICE/QNETO/ ...)
371     - remove FO (it is the same as QNETO)
372     - introduce a few local fields to avoid modifying external fields such
373       as atemp, etc.
374    
375    checkpoint58s_post
376    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
377      changed exf_set_gen.F so that
378        genperiod=0 means input file is one time-constant field and
379        genperiod=-12 means input file contains 12 monthly means
380    o CG2D: use pre-computed solver main-diagonal (stored in common block);
381      this affects truncation error ; generate new output file for exp. which
382      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
383        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
384        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
385        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
386        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
387        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
388    o start implementation of deep-atmosphere and anelastic formulation
389    o verification: remove 2nd copy of input files and use script "prepare_run"
390      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
391    o mom_common/vecinv/fluxform: fix a few initialisation isssues
392    o profiles: fix for multithreaded case
393    
394    o diagnostics: rename few diags:
395      s/'PRESSURE'/'RCENTER '/g
396      s/'TICE    '/'oceFreez'/g
397      s/'TAUX    '/'oceTAUX '/g
398      s/'TAUY    '/'oceTAUY '/g
399      s/'SWFLUX  '/'oceQsw  '/g
400      s/DIFx/DFxE/g
401      s/DIFy/DFyE/g
402      and add few ocean-forcing diagnostics:
403      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
404    o modifications to pkg/seaice/growth.F and budget.F, which change results of
405      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
406      as actual snow thickness.  It now refers everywhere to effective snow
407      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
408    
409    checkpoint58r_post
410    o modifications to pkg/seaice/growth.F, which change results of
411      lab_sea experiment: fixes pertain to melting snow over open water, to
412      masking EVAP under sea ice, and to using the correct AREA variable for
413      computations of EVAP, PRECIP, HSNOW, and GHEFF
414    o add ability to read bathy, salt, and theta using MNC (off by def)
415    o add flooding algorithm and advection of HSNOW for pkg/seaice;
416      both are turned off by default and do no change any results
417    o seaice advection with pkg/thsice: a step toward the use of non-linear
418      advection scheme, but #ifdef or commented out for now (requires more EXCH).
419    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
420      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
421      in natl_box (affects results @ truncation level: update output.txt)
422    o multi-threading and IO:
423      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
424      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
425        (needed to work with SingleCpuIO): tested in all verif. exp.
426    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
427      affects the results (but none of the verification test uses this scheme).
428    o Adding some pkg/diagnostics capability to pkg/seaice
429      (will certainly be subject to changes)
430    o ctrl: adding new control variables:
431      lwflux, lwdown, evap, snowprecip, apressure, runoff
432    
433    checkpoint58q_post
434    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
435      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
436      high_res_cube configuration by 4% on Columbia.
437    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
438      add (in global_with_exf/code) a version of EXF_INTERP_READ without
439      dynamical allocation (seems to work in multi-threaded).
440    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
441      single CPU io) so that TAF does not have to see EESUPPORT.h
442    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
443    
444    checkpoint58p_post
445    o obcs: stop if obcs is used with useCDscheme = .true.
446    o shelfice:
447     - fix a sign error so that no slip at shelfice interface works
448     - remove stop for combination non-hydrostatic code and shelfice. That does
449       not mean, that the results are correct, but at least they are numerically
450       stable
451    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
452    o added adjoint exch routined for all exch*3d* routines
453      and updated flow directives
454    
455    checkpoint58o_post
456    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
457      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
458    o change controling S/R for writing pickup file (new S/R do_write_pickup)
459      and clean-up reading/writing of pickup files.
460    o fix local version of read/write pickup (NH part) in rotating_tank/code
461    o simplify EXCH interface:
462     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
463     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
464    o added the regrid package
465    o shelfice:
466     - add a simple boundary layer scheme to reduce noise
467     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
468    
469    checkpoint58n_post
470    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
471       local variable (not in common block).
472    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
473      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
474      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
475        to work with SingleCpuIO.
476    o add "_d 0" to real constant of pkg/cfc subroutines ;
477       update exp. cfc_exemple & tutorial_cfc_offline output files.
478    o multi-threading and IO:
479      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
480        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
481      - barrier before and after reading.
482      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
483      - avoid using MDS_WRITELOCAL for LAND pkg output.
484      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
485        common-block variables ; Allows multi-threading with master-thread IO.
486    o change default MAX_NO_THREADS from 32 to 4 ;
487      and stop cleanly when MAX_NO_THREADS is too small.
488    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
489    
490    checkpoint58m_post
491    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
492       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
493    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
494       keep global_ocean.90x40x15 (for AD testing) with former secondary test
495       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
496    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
497        add MITgcm_tutorials (= code + all the tutorials)
498    o ecco, option to compute cost for total ssh (mean+anom)
499    o consistent with addition of ptracer and ssh in pkg/profiles
500    o profiles: adding ptracer and ssh
501    o testreport: change multi-test output-file name
502      (from output.txt.{name} to output.{name}.txt)
503    o profiles: now ok for mutli-tiles case
504    o seaice: add 4 parameters for different advection schemes for area,
505      (effective) seaice thickness, enthalphy, and snow height. Their default
506      is the standard parameter SEAICEadvScheme
507    o calc_gw:
508     - add cosFacU in zonal viscous flux (harmonic.visc.).
509     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
510       of tutorial_plume_on_slope.
511    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
512    o calc_gw: true flux-form, account for horizontal grid spacing.
513      update rotating_tank results, but not plume_on_slope (affected at
514      truncation level, 11 digits).
515    
516    checkpoint58l_post
517    o calc_gw:
518     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
519     - remove side-drag for now (need to fix it); update plume_on_slope results.
520     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
521    o commit code to make SST/SSS weights spatially variable
522      (based on either variable in-situ or variable initial T/S weights)
523    o pkg/ecco:
524      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
525        now based on horizontally varying weights wthetaLev, wsaltLev
526      * cost_averagesflags now returns year indices in addition to day, month
527      * sflux balance is performed on annual basis
528        (sflxumm, sfluxmm2, bal_sfluxmm)
529      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
530        including separate counting and multipliers
531    o pkg/rbcs
532      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
533    
534    checkpoint58k_post
535    o testreport:
536     - always build in dir. "build" (if not there, mkdir build instead of building
537       & running in input)
538     - run in dir run (if it exists), in build otherwise.
539     - call prepare_run (if input/prepare_run exists)
540     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
541    o pkg/exf modifications to interpolation and rotation routines for more
542       reasonable treatment of North Pole singularity: for tracers North Pole
543       value is set to northernmost zonal-mean value, for zonal velocity it is
544       set to zero, and for meridional velocity it is set to northernmost value.
545    o pkg/exf/exf_check_range.F
546     - add tile index to diagnostics and move stop statement to the very
547       end of the routine.
548    o pkg/diagnostics: (diagnostics_main_init.F)
549      define title of isomorphic variables according to the current config.
550    o pkg/thsice with pkg/seaice dynamics:
551    - fix domain of computation (interior only, required for exf) and do exchanges
552    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
553    o towards a standard way of dealing with multi-threading in MONITOR
554      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
555    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
556       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
557    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
558    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
559    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
560       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
561    o tracer advection:
562     - clean-up and simplify calc_common_factors.F
563     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
564       advection subroutine (but still not used within DST advection S/R)
565    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
566    
567    checkpoint58j_post
568    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
569      from file (collects calls previously in FORWARD_STEP)
570    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
571    o adjoint store dir. adjusted accordingly
572    o genmake2
573      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
574    
575    checkpoint58i_post
576    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
577      on wind stress (SEAICEstressFactor defaults to 1.)
578    o Total number of Timers is finite (<=40): comment out 2 non-essential one
579      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
580    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
581      on CS-grid: no longer loosing mass.
582    o exf & curvilinear-grid: no longer modify longitude xC & xG.
583    o pkg/ggl90: fix sloppy output and fix a bug
584    o pkg/seaice: added SEAICEuseEVPpickup parameter
585      - Set to false in order to start EVP solver with
586        non-EVP pickup files when using SEAICEuseEVP
587      - fix sign error in diffusion in seaice_calc_rhs
588    
589    checkpoint58h_post
590    * Modifications for bottom topography control
591      o replace hFacC by _hFacC at various places
592      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
593      o add non-self-adjoint cg2d_nsa
594      o update autodiff support routines
595      o re-initialise hfac after ctrl_depth_ini
596      o works for 5x5 box, doesnt work for global_ocean.90x40x15
597    * Adding verification for 5x5 box (4-layer) bottom topography control
598    
599    checkpoint58g_post
600    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
601       used for mean seasonal cycle, mean diurnal cycle); add an example
602       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
603    o pkg/ggl90:
604      - add parameter (minimum surface kinetic energy)
605      - fix bug (avoiding division by zero)
606    o couple pkg/thsice to pkg/seaice:
607      - modify advection in seaice to accomodate new scalar fields to be advected
608      - only muliDimAdection scheme work with seaice/thsice
609      - mapping of thsice-variables to seaice-variables, back and forth
610      - does not break the verification experiments, but does not give the
611        desired results either
612    o pkg/seaice
613      - make (default) second order advection a bit less confusing?
614    
615    checkpoint58f_post
616    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
617      to pkg/seaice):
618      - new routines thsice_map_exf and thsice_get_exf provide the interface
619      - add an additional formal parameter to thsice_solve4temp
620    o pkg/exf:
621      - add new fields wspeed, snowprecip (to be able to couple to thsice)
622      - correct Stefan-Boltzmann constant
623      - new parameter for longwave surface emittance
624      - separate some stuff from exf_bulkformulae into new routines  
625        exf_radiation, exf_wind
626      - add new parameters and constants: longwave emissivity for ocean, ice
627        and snow, evaporation parameters over ice
628      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
629        either wind from stress or stress from wind
630    o pkg/thSIce:
631    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
632    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
633       and THSICE_CALC_THICKN
634    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
635    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
636      to make debugging easier.
637    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
638    o pkg/bulk_force:
639      - clean-up comments and parameters ;
640      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
641    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
642      generate new output for test-experiment: aim.5l_cs.thSI
643    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
644      testreport accordingly
645    
646    checkpoint58e_post
647    o SEAICE_CGRID adjoint done
648    o R_STAR adjoint implemented.
649      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
650      * need to sort out init. of h0facc, etc.
651    o Make pkg/profile fully independent of ecco,cost, etc. stuff
652      to be able to use it in pure forward.
653    
654    checkpoint58d_post
655    o upgrade simple test-experiment to tutorial example:
656     step.1: duplicate the experiment and (step.2) will remove the old copy.
657      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
658      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
659      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
660      tutorial_global_oce_biogeo    <- copy of dic_example
661      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
662      tutorial_plume_on_slope       <- copy of plume_on_slope
663      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
664      tutorial_global_oce_optim     <- empty for now (David ?)
665      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
666     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
667    o correct a sign problem in cost_scat.F
668    o obcs and ptracers: fix boundary conditions for advections schemes
669      with larger stencil
670    o thsice adjoint: start
671    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
672      completeness
673    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
674      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
675    o ptracers adjoint:
676      * avoid extensive recomputatations
677      * fix missing re-init. of gptr (missed by TAF)
678    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
679      me to turn off the excessive output to STDOUT that this package produces
680  o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common  o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
681    and add those terms in Vector-Invariant formulation.    and add those terms in Vector-Invariant formulation.
682  o in ctrl pkg, if ALLOW_CAL, use monthly mean controls  o in ctrl pkg, if ALLOW_CAL, use monthly mean controls

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