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revision 1.636 by jmc, Mon Mar 20 21:54:37 2006 UTC revision 1.844 by heimbach, Thu Jun 21 04:16:36 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 seaice adjoint
8      * add AREA, HEFF, HSNOW as control variable
9        (should not change lab_sea results)
10      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
11    
12    checkpoint59d
13    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
14     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
15     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
16    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
17     and change default value of parameter "GM_Small_Number";
18     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
19       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
20       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
21    o pkg/ecco: cost function when applying pkg/smooth to controls
22    o pkg/ctrl: add forcingPrecond run time parameter
23    o pkg/seaice:
24     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
25     - fix bug in metric terms of u-equation in LSR solver (implicit part),
26       changes verification/lab_sea
27     - rearrange implicit part of u-equation in LSR solver to make it easier to
28       read, understand, and debug. This causes changes at the truncation level.
29     - fix (serious) bug in the boundary conditions (sign error in the implicit
30       part) of the LSR solver. Changes all LSR results.
31     - fixed problem with HSNOW initialization to avoid thick snow when AREA
32       is initilized with small values - does not change lab_sea results.
33     - added HsnowFile initialization capability
34    o pkg/smooth: addition to model/src and pkg/ctrl so allow
35     initialization of pkg/smooth and application to control vector
36    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
37    o dependencies: pkg/profiles requires pkg/cal
38    o pkg/profiles:
39     - added option ALLOW_PROFILES_GENERICGRID
40         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
41         that interpolation information (grid points and coefficients) is provided
42         within the netcdf input files.
43         -> sample matlab scripts can be found in MITgcm_contrib/gael
44         that allow you to prepare netcdf input files.
45     - also modified: cleaner include statements, cleaner error print statements,
46       cleaner stops when error, and more tests of the netcdf input files consistency.
47    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
48    o pkg/seaice:
49     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
50       requires a new routine: seaice_diagnostics_fill.F
51     - make sure that seaice does not move if not forced (pressure replacement
52       method, Hibler and Ip, 1995), changes results
53     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
54     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
55       It is turned off by default (=-1.), because it changes the results.
56     - make it possible to read AREA from a file, too.
57    
58    checkpoint59c
59    o add S/R and diagnostics for oceanic mixed-layer depth
60    o move GMRedi call after all vertical mixing schemes (including KPP)
61    o pkg/thsice:
62     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
63      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
64    o pkg/obcs:
65     - bug fix for balance code
66    o pkg/seaice:
67      - allow values of SEAICE_elasticParm > 1
68      - add new parameter SEAICE_evpTauRelax as an alternative
69        to SEAICE_elasticParm
70      - make lsr boundary conditions free slip (by default), changes result
71      - add code for no slip boundary conditions for lsr
72      - set minimum of zeta to zero (and not 4e8) (changes results)
73      - add a cap on AREA after advecting AREA if seaice_growth is not called
74    o change calculation of Visbeck K:
75      - no longer depend on tapering scheme; instead, compute slope (limited
76        by GM_maxSlope). this is equivalent to what was comuted before with
77        clipping or linear tappering.
78      - fix vertical averaging (wrong by 1/2 level)
79      - leave the old version (but will not be maintained) within
80        #ifdef OLD_VISBECK_CALC / #endif
81      - update output of exp. ideal_2D_oce
82    o change error catch in calc_r_star to improve vectorization
83    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
84      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
85    o adjoint:
86      Re-organized adjoint checkpointing according to Matt Mazloff
87      (but with modifs/completions/cleanups)
88      Storing is now bundled into large arrays to optimized I/O
89      (and second step in cleanup of the_main_loop)
90    
91    checkpoint59b
92    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
93      - export/import (between ocean & coupler) fields needed for ocean DIC.
94    o pkg/seaice:
95      - get rid of three more exchanges seaice_calc_viscosities (required
96        different loop boundaries in seaice_lsr and seaice_ocean_stress)
97      - bug fix in seaice_ocean_stress (update of lab_sea required)
98      - reduce loop boundaries to necessary minimum also in seaice_evp
99      - go back to the old way of computing deltaC/Z as the adjoint likes that
100        better
101    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
102      passive tracer to an Age Tracer) + update output.txt
103    o pkg/exf:
104      - implement A-grid / C-grid selection for wind-stress input files.
105      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
106      for now, in exf_bulk_largeyeager04.F only :
107      - change implementation for case where windspeed + 2. components wind-stress
108        are read-in. AND use rhoConstFresh to convert evap.
109    o pkg/seaice:
110      - use correct EXCH_UV for wind-forcing (on A-grid).
111      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
112        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
113    o pkg/exf:
114      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
115      EXF_INTERPOLATION:
116      - merge global_with_exf/code version of exf_interp_read.F
117        to the main code ;
118      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
119        reading the file ; Important: This options needs to be defined to recover
120        previous code.
121        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
122      - no longer loose real*8 precision along the way when using exf_iprec=64.
123    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
124      - change discretisation of evp-solver in order to avoid another exchange
125        (changes lab_sea) and clean up a little
126      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
127        help the adjoint (this also changes the results slightly)
128      - add a few "_d 0" where they had been missing in seaice_evp.F
129      - cleaning up: remove unused seaice_calc_rhs.F
130    o pkg/exf: some cleaning-up:
131      - change various "constants" into runtime parameters
132      - cleaned-up Large&Yeager04 routine which should eventually
133        replace exf_bulkformulae.F (changed names of S/R and CPP)
134        and merged various ALLOW_ATM_WIND options
135     only used with thsice pkg (in thsice_get_exf.F):
136      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
137        which are used when useStabilityFct_overIce=TRUE (= the default)
138      - change default values of ice & snow emissivity and scale downward LW
139        by ice & snow emissivity.
140    o pkg/thsice:
141     fix few little problems, in thsice_calc_thickn.F:
142      - growth vertically (and not laterally) if iceFrac == iceMaskMax
143      - melt only laterally if hIce < hThinIce (as the comments say)
144      and in thsice_extend.F:
145      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
146      - start to form ice as soon as the minimum ice-volume is reachable.
147     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
148      and cpl_aim+ocn
149    o pkg/kpp
150     - move computation of surface related input fields to KPP into a new
151       subroutine kpp_forcing_surf.F
152     - remove wrong (within bi,bj loops) EXCH calls.
153     - little cleaning (add argument myThid in last position, cvs header ...)
154     - for now, fix conservation problem by exchanging KPPviscAz (may not
155       be the best fix)
156    o pkg/seaice
157     - check for inconsistent evp parameter/cpp-flag combination
158     - remove leftover errIO flat for obsolete name list error handling
159    o OpenAD
160     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
161    
162    checkpoint59a
163    o pkg/seaice: some parameter clarifications and a little bit of clean up
164    o pkg/thsice: rename run-time parameters:
165       himin       -> hIceMin
166       himin0      -> hThinIce
167       hihig       -> hThickIce
168       i0          -> i0swFrac
169       transCoef   -> bMeltCoef
170       frac_energy -> fracMelting
171      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
172       with default values (for now) that do not change the results.
173      remove old version of thsice vars advection in pkg/seaice.
174    o in FFIELDS.h:
175      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
176      - make pLoad & sIceLoad always available (but still only used if
177         ATMOSPHERIC_LOADING is #define).
178    o pkg/kpp: replaced _KPP_RL with _RL
179    o bug fixes for vertical diffusivity computations when both KPP and
180        3D diffusivity arrays are used.
181    o pkg/seaice: fix bug in evp solver, while doing that
182      - change (improve?) discretization of stress computations for both
183        cgrid-lsr and evp solver
184      - add a new routine to compute strain rates
185      - the above changes lab_sea results
186      - add no slip conditions for evp solver (off by default), lsr-version
187        may follow
188      - fix exchange for shear at Z-points (does not change lab_sea)
189      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
190        (to force the user to pick a time step since there is not "safe" way
191        of choosing it)
192      - add principal stress diagnostics
193      - rearrange fields for evp a little to avoid having to call a: too many
194        exchanges and b: exchanges for stress trensor components which we do
195        not have.
196      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
197        of evp, complete rewrite for lsr case (latter is does not yet work
198        in all cases)
199    o pkg/kpp: add code to have mixing in shelf ice caverns
200      - add myThid to all kpp routines (long overdue)
201    
202    checkpoint59
203    o pkg/exf:
204      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
205        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
206      - move exf header files from lower_case.h to UPPER_CASE.h ;
207        add missing cvs Header & Name
208      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
209      - add namelist param. selectStressGridPosition, exf_monFreq
210      - retire many _CLIM routines, and remove data.exf_clim
211        + params moved to data.exf
212        + climsst, climsss now handled by exf_set_gen, i.e.
213          climss?period=0 refers to constant field,
214          climss?period=-12 to monthly forcing
215      - split up namelists in data.exf
216    o pkg/seaice:
217      - remove seaice_exch and seaice_exch_uv
218      - remove superfluous exchange of theta
219      - add myThid to seaice_budget_ocean/ice
220      - add new interface for atmospheric wind forcing (C-grid only)
221        + new routine
222        + two new field (taux, tauy for stress over ice)
223        + removed one global field (DAIRN) for C-grid case only
224    o pkg/thsise
225      - 2nd set of modifs for thsice adjoint in conjunction with exf
226    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
227    
228    checkpoint58y_post
229    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
230      vertical diffusivity, similar to that in MOM4; turned on using
231      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
232      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
233    o Added capability for 3D specification of background vertical diffusion
234      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
235      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
236      "data" file that contains the 3D vertical diffusivity coefficients.
237    o ice dynamics (pkg/seaice) with thsice thermodynamics:
238      - add code within pkg thsice to advect & diffuse sea-ice fields
239      similar to (and will replace) what has been added in  seaice_advdiff.F,
240      but: - conserving Mass, Heat & Salt.
241           - better when using non-linear advection scheme (not yet fully tested)
242           - can also be used in atmospheric set-up (for now, only the diffusion).
243    
244    checkpoint58x_post
245    o IO option for global-file compact format:
246      - add options when generating topology (utils/exch2/matlab-topology-generator)
247      - add I/O capability (pkg/mdsio).
248      - adapt utils/matlab/rdmds.m to read this format.
249      for now long-line format not yet supported by pkg/mdsio (& exch2).
250    o shelfice: add a few diagnostics
251    
252    checkpoint58w_post
253    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
254      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
255      (and replace horiVertRatio in NH code).
256      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
257                         and tutorial_plume_on_slope (sensitive to truncation)
258    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
259      directly to drive seaice model (C-grid only)
260    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
261     - reintroduce computation of wind from stress,
262     - compute tau (in exf_bulkformulae.F) from windstress averaged to
263       mass points to avoid tau = 0
264     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
265    o rdmnc.m: make it work with "global" files created with gluemnc
266    o rdmnc.m : some improvements in dealing with singleton dimension
267      (tested on all testreport mnc output files).
268    o genmake2: disable pkg/profiles if netcdf test fails.
269    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
270    o move call to cal_readparms up to make calendar parameters/variable available
271      to all packages
272    
273    checkpoint58v_post
274    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
275      useDynP_inEos_Zc tested.
276    o pkg/exf: changes to properly interpolate/mask/scale initial fields
277    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
278      and portions thereof.  See read_cs.txt for description and examples.
279    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
280      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
281      following the great-circle arc between those 2 points.
282    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
283      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
284    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
285     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
286     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
287     - still needs work (not working with some options ; efficiency to improve)
288       and serious testing.
289     - use this scheme for temperature & salinity in 2 advection test exp.:
290       advect_xy & advect_xz, respectively.
291    
292    checkpoint58u_post
293    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
294    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
295    o testreport: add option "-skipdir" to skip some test.
296    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
297      momentum calculation.
298    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
299    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
300      remove checkpoint.F and the_correction_step.F (no longer used);
301      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
302    o add option (linFSConserveTr) to correct for tracer source/sink due to
303      Linear Free surface
304    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
305    o pkg/thsice: fix reading mnc-pickups
306    
307    checkpoint58t_post
308    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
309    o pkg/mdsio:
310     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
311       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
312       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
313     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
314     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
315       either MDS_READ_FIELD or MDS_WRITE_FIELD )
316     - new S/R (to replace MDSWRITEMETA), which allows to write more
317       informations (variable names, time ...) to meta files.
318     - modify rdmds.m to give back the meta file content.
319    o pkg/diagnostics: change vertical interpolation to be safer, and more
320       flexible (define p-levels to interpolate to in data.diagnostics);
321      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
322       diagnostic pointer.
323    o pkg/seaice: more cleaning up of seaice_growth, added many comments
324    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
325    o fix multi-category seaice:
326     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
327       SEAICE_MULTICATEGORY
328     - fix short wave heat flux
329    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
330       and allow to use EVP solver. Change forward lab_sea: test both EVP
331       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
332    o Initial check-in of lab_sea adjoint
333      (very similar to natl_box_adjoint/code_seaice)
334      * used C-grid and EVP solver
335      * used KPP, GM/Redi
336      * uses inAdExact=.TRUE.
337      * gradient checks fail for both ADM and TLM
338        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
339        f.d. gradients actually seem more problematic than ADM, TLM gradients;
340        issue is related to forward mismatch between g77 an ifort
341    o pkg/seaice: overhaul of thermodynamics
342     - growth.F and groatb.F are replaced by new routine seaice_growth.F
343     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
344     - move a few global fields out of SEAICE.h into seaice_growth.F and
345       make them 2D (FICE/QNETO/ ...)
346     - remove FO (it is the same as QNETO)
347     - introduce a few local fields to avoid modifying external fields such
348       as atemp, etc.
349    
350    checkpoint58s_post
351    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
352      changed exf_set_gen.F so that
353        genperiod=0 means input file is one time-constant field and
354        genperiod=-12 means input file contains 12 monthly means
355    o CG2D: use pre-computed solver main-diagonal (stored in common block);
356      this affects truncation error ; generate new output file for exp. which
357      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
358        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
359        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
360        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
361        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
362        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
363    o start implementation of deep-atmosphere and anelastic formulation
364    o verification: remove 2nd copy of input files and use script "prepare_run"
365      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
366    o mom_common/vecinv/fluxform: fix a few initialisation isssues
367    o profiles: fix for multithreaded case
368    
369    o diagnostics: rename few diags:
370      s/'PRESSURE'/'RCENTER '/g
371      s/'TICE    '/'oceFreez'/g
372      s/'TAUX    '/'oceTAUX '/g
373      s/'TAUY    '/'oceTAUY '/g
374      s/'SWFLUX  '/'oceQsw  '/g
375      s/DIFx/DFxE/g
376      s/DIFy/DFyE/g
377      and add few ocean-forcing diagnostics:
378      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
379    o modifications to pkg/seaice/growth.F and budget.F, which change results of
380      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
381      as actual snow thickness.  It now refers everywhere to effective snow
382      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
383    
384    checkpoint58r_post
385    o modifications to pkg/seaice/growth.F, which change results of
386      lab_sea experiment: fixes pertain to melting snow over open water, to
387      masking EVAP under sea ice, and to using the correct AREA variable for
388      computations of EVAP, PRECIP, HSNOW, and GHEFF
389    o add ability to read bathy, salt, and theta using MNC (off by def)
390    o add flooding algorithm and advection of HSNOW for pkg/seaice;
391      both are turned off by default and do no change any results
392    o seaice advection with pkg/thsice: a step toward the use of non-linear
393      advection scheme, but #ifdef or commented out for now (requires more EXCH).
394    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
395      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
396      in natl_box (affects results @ truncation level: update output.txt)
397    o multi-threading and IO:
398      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
399      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
400        (needed to work with SingleCpuIO): tested in all verif. exp.
401    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
402      affects the results (but none of the verification test uses this scheme).
403    o Adding some pkg/diagnostics capability to pkg/seaice
404      (will certainly be subject to changes)
405    o ctrl: adding new control variables:
406      lwflux, lwdown, evap, snowprecip, apressure, runoff
407    
408    checkpoint58q_post
409    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
410      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
411      high_res_cube configuration by 4% on Columbia.
412    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
413      add (in global_with_exf/code) a version of EXF_INTERP_READ without
414      dynamical allocation (seems to work in multi-threaded).
415    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
416      single CPU io) so that TAF does not have to see EESUPPORT.h
417    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
418    
419    checkpoint58p_post
420    o obcs: stop if obcs is used with useCDscheme = .true.
421    o shelfice:
422     - fix a sign error so that no slip at shelfice interface works
423     - remove stop for combination non-hydrostatic code and shelfice. That does
424       not mean, that the results are correct, but at least they are numerically
425       stable
426    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
427    o added adjoint exch routined for all exch*3d* routines
428      and updated flow directives
429    
430    checkpoint58o_post
431    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
432      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
433    o change controling S/R for writing pickup file (new S/R do_write_pickup)
434      and clean-up reading/writing of pickup files.
435    o fix local version of read/write pickup (NH part) in rotating_tank/code
436    o simplify EXCH interface:
437     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
438     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
439    o added the regrid package
440    o shelfice:
441     - add a simple boundary layer scheme to reduce noise
442     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
443    
444    checkpoint58n_post
445    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
446       local variable (not in common block).
447    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
448      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
449      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
450        to work with SingleCpuIO.
451    o add "_d 0" to real constant of pkg/cfc subroutines ;
452       update exp. cfc_exemple & tutorial_cfc_offline output files.
453    o multi-threading and IO:
454      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
455        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
456      - barrier before and after reading.
457      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
458      - avoid using MDS_WRITELOCAL for LAND pkg output.
459      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
460        common-block variables ; Allows multi-threading with master-thread IO.
461    o change default MAX_NO_THREADS from 32 to 4 ;
462      and stop cleanly when MAX_NO_THREADS is too small.
463    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
464    
465    checkpoint58m_post
466    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
467       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
468    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
469       keep global_ocean.90x40x15 (for AD testing) with former secondary test
470       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
471    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
472        add MITgcm_tutorials (= code + all the tutorials)
473    o ecco, option to compute cost for total ssh (mean+anom)
474    o consistent with addition of ptracer and ssh in pkg/profiles
475    o profiles: adding ptracer and ssh
476    o testreport: change multi-test output-file name
477      (from output.txt.{name} to output.{name}.txt)
478    o profiles: now ok for mutli-tiles case
479    o seaice: add 4 parameters for different advection schemes for area,
480      (effective) seaice thickness, enthalphy, and snow height. Their default
481      is the standard parameter SEAICEadvScheme
482    o calc_gw:
483     - add cosFacU in zonal viscous flux (harmonic.visc.).
484     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
485       of tutorial_plume_on_slope.
486    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
487    o calc_gw: true flux-form, account for horizontal grid spacing.
488      update rotating_tank results, but not plume_on_slope (affected at
489      truncation level, 11 digits).
490    
491    checkpoint58l_post
492    o calc_gw:
493     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
494     - remove side-drag for now (need to fix it); update plume_on_slope results.
495     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
496    o commit code to make SST/SSS weights spatially variable
497      (based on either variable in-situ or variable initial T/S weights)
498    o pkg/ecco:
499      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
500        now based on horizontally varying weights wthetaLev, wsaltLev
501      * cost_averagesflags now returns year indices in addition to day, month
502      * sflux balance is performed on annual basis
503        (sflxumm, sfluxmm2, bal_sfluxmm)
504      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
505        including separate counting and multipliers
506    o pkg/rbcs
507      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
508    
509    checkpoint58k_post
510    o testreport:
511     - always build in dir. "build" (if not there, mkdir build instead of building
512       & running in input)
513     - run in dir run (if it exists), in build otherwise.
514     - call prepare_run (if input/prepare_run exists)
515     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
516    o pkg/exf modifications to interpolation and rotation routines for more
517       reasonable treatment of North Pole singularity: for tracers North Pole
518       value is set to northernmost zonal-mean value, for zonal velocity it is
519       set to zero, and for meridional velocity it is set to northernmost value.
520    o pkg/exf/exf_check_range.F
521     - add tile index to diagnostics and move stop statement to the very
522       end of the routine.
523    o pkg/diagnostics: (diagnostics_main_init.F)
524      define title of isomorphic variables according to the current config.
525    o pkg/thsice with pkg/seaice dynamics:
526    - fix domain of computation (interior only, required for exf) and do exchanges
527    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
528    o towards a standard way of dealing with multi-threading in MONITOR
529      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
530    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
531       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
532    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
533    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
534    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
535       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
536    o tracer advection:
537     - clean-up and simplify calc_common_factors.F
538     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
539       advection subroutine (but still not used within DST advection S/R)
540    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
541    
542    checkpoint58j_post
543    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
544      from file (collects calls previously in FORWARD_STEP)
545    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
546    o adjoint store dir. adjusted accordingly
547    o genmake2
548      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
549    
550    checkpoint58i_post
551    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
552      on wind stress (SEAICEstressFactor defaults to 1.)
553    o Total number of Timers is finite (<=40): comment out 2 non-essential one
554      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
555    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
556      on CS-grid: no longer loosing mass.
557    o exf & curvilinear-grid: no longer modify longitude xC & xG.
558    o pkg/ggl90: fix sloppy output and fix a bug
559    o pkg/seaice: added SEAICEuseEVPpickup parameter
560      - Set to false in order to start EVP solver with
561        non-EVP pickup files when using SEAICEuseEVP
562      - fix sign error in diffusion in seaice_calc_rhs
563    
564    checkpoint58h_post
565    * Modifications for bottom topography control
566      o replace hFacC by _hFacC at various places
567      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
568      o add non-self-adjoint cg2d_nsa
569      o update autodiff support routines
570      o re-initialise hfac after ctrl_depth_ini
571      o works for 5x5 box, doesnt work for global_ocean.90x40x15
572    * Adding verification for 5x5 box (4-layer) bottom topography control
573    
574    checkpoint58g_post
575    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
576       used for mean seasonal cycle, mean diurnal cycle); add an example
577       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
578    o pkg/ggl90:
579      - add parameter (minimum surface kinetic energy)
580      - fix bug (avoiding division by zero)
581    o couple pkg/thsice to pkg/seaice:
582      - modify advection in seaice to accomodate new scalar fields to be advected
583      - only muliDimAdection scheme work with seaice/thsice
584      - mapping of thsice-variables to seaice-variables, back and forth
585      - does not break the verification experiments, but does not give the
586        desired results either
587    o pkg/seaice
588      - make (default) second order advection a bit less confusing?
589    
590    checkpoint58f_post
591    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
592      to pkg/seaice):
593      - new routines thsice_map_exf and thsice_get_exf provide the interface
594      - add an additional formal parameter to thsice_solve4temp
595    o pkg/exf:
596      - add new fields wspeed, snowprecip (to be able to couple to thsice)
597      - correct Stefan-Boltzmann constant
598      - new parameter for longwave surface emittance
599      - separate some stuff from exf_bulkformulae into new routines  
600        exf_radiation, exf_wind
601      - add new parameters and constants: longwave emissivity for ocean, ice
602        and snow, evaporation parameters over ice
603      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
604        either wind from stress or stress from wind
605    o pkg/thSIce:
606    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
607    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
608       and THSICE_CALC_THICKN
609    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
610    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
611      to make debugging easier.
612    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
613    o pkg/bulk_force:
614      - clean-up comments and parameters ;
615      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
616    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
617      generate new output for test-experiment: aim.5l_cs.thSI
618    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
619      testreport accordingly
620    
621    checkpoint58e_post
622    o SEAICE_CGRID adjoint done
623    o R_STAR adjoint implemented.
624      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
625      * need to sort out init. of h0facc, etc.
626    o Make pkg/profile fully independent of ecco,cost, etc. stuff
627      to be able to use it in pure forward.
628    
629    checkpoint58d_post
630    o upgrade simple test-experiment to tutorial example:
631     step.1: duplicate the experiment and (step.2) will remove the old copy.
632      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
633      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
634      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
635      tutorial_global_oce_biogeo    <- copy of dic_example
636      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
637      tutorial_plume_on_slope       <- copy of plume_on_slope
638      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
639      tutorial_global_oce_optim     <- empty for now (David ?)
640      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
641     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
642    o correct a sign problem in cost_scat.F
643    o obcs and ptracers: fix boundary conditions for advections schemes
644      with larger stencil
645    o thsice adjoint: start
646    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
647      completeness
648    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
649      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
650    o ptracers adjoint:
651      * avoid extensive recomputatations
652      * fix missing re-init. of gptr (missed by TAF)
653    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
654      me to turn off the excessive output to STDOUT that this package produces
655    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
656      and add those terms in Vector-Invariant formulation.
657    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
658      if the control period (xx_hfluxperiod etc) is 0
659    o in profiles pkg, clean routines and fix details
660    o in ecco pkg, reading ssh data:
661      fix problem in case the model does not start at iter0=0
662    o fix mnc-pickup/restart for ptracers
663    o new package prifiles:
664      code to compute profile-based cost by Gael Forget
665      (modifs in ecco, ctrl, autodiff)
666    o Benign bug fix in initialization (spotted by M. Mazloff) of
667      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
668    
669    checkpoint58c_post
670    o adjoint: finish NLFS adjoint and provide reference output in
671      verification/global_ocean.90x40x15/results_ad_nlfs
672    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
673      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
674      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
675      with SEAICE_CGRID defined.
676  o move calendarDumps from "data" to "data.cal" and clean-up the code  o move calendarDumps from "data" to "data.cal" and clean-up the code
677    with a simple call to pkg/cal S/R: CAL_TIME2WRITE    with a simple call to pkg/cal S/R: CAL_TIME2WRITE
678  o add useEXF & useCAL flags (for now, set in hard-coded way)  o add useEXF & useCAL flags (for now, set in hard-coded way)

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