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revision 1.575 by jmc, Mon Oct 24 18:20:11 2005 UTC revision 1.796 by mlosch, Sun Apr 22 19:57:13 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 pkg/seaice: fix bug in evp solver, while doing that
8      - change (improve?) discretization of stress computations for both
9        cgrid-lsr and evp solver
10      - add a new routine to compute strain rates
11      - the above changes lab_sea results
12      - add no slip conditions for evp solver (off by default), lsr-version
13        may follow
14      - fix exchange for shear at Z-points (does not change lab_sea)
15      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
16        (to force the user to pick a time step since there is not "safe" way
17        of choosing it)
18    o pkg/kpp: add code to have mixing in shelf ice caverns
19    
20    checkpoint59
21    o pkg/exf:
22      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
23        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
24      - move exf header files from lower_case.h to UPPER_CASE.h ;
25        add missing cvs Header & Name
26      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
27      - add namelist param. selectStressGridPosition, exf_monFreq
28      - retire many _CLIM routines, and remove data.exf_clim
29        + params moved to data.exf
30        + climsst, climsss now handled by exf_set_gen, i.e.
31          climss?period=0 refers to constant field,
32          climss?period=-12 to monthly forcing
33      - split up namelists in data.exf
34    o pkg/seaice:
35      - remove seaice_exch and seaice_exch_uv
36      - remove superfluous exchange of theta
37      - add myThid to seaice_budget_ocean/ice
38      - add new interface for atmospheric wind forcing (C-grid only)
39        + new routine
40        + two new field (taux, tauy for stress over ice)
41        + removed one global field (DAIRN) for C-grid case only
42    o pkg/thsise
43      - 2nd set of modifs for thsice adjoint in conjunction with exf
44    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
45    
46    checkpoint58y_post
47    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
48      vertical diffusivity, similar to that in MOM4; turned on using
49      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
50      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
51    o Added capability for 3D specification of background vertical diffusion
52      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
53      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
54      "data" file that contains the 3D vertical diffusivity coefficients.
55    o ice dynamics (pkg/seaice) with thsice thermodynamics:
56      - add code within pkg thsice to advect & diffuse sea-ice fields
57      similar to (and will replace) what has been added in  seaice_advdiff.F,
58      but: - conserving Mass, Heat & Salt.
59           - better when using non-linear advection scheme (not yet fully tested)
60           - can also be used in atmospheric set-up (for now, only the diffusion).
61    
62    checkpoint58x_post
63    o IO option for global-file compact format:
64      - add options when generating topology (utils/exch2/matlab-topology-generator)
65      - add I/O capability (pkg/mdsio).
66      - adapt utils/matlab/rdmds.m to read this format.
67      for now long-line format not yet supported by pkg/mdsio (& exch2).
68    o shelfice: add a few diagnostics
69    
70    checkpoint58w_post
71    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
72      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
73      (and replace horiVertRatio in NH code).
74      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
75                         and tutorial_plume_on_slope (sensitive to truncation)
76    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
77      directly to drive seaice model (C-grid only)
78    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
79     - reintroduce computation of wind from stress,
80     - compute tau (in exf_bulkformulae.F) from windstress averaged to
81       mass points to avoid tau = 0
82     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
83    o rdmnc.m: make it work with "global" files created with gluemnc
84    o rdmnc.m : some improvements in dealing with singleton dimension
85      (tested on all testreport mnc output files).
86    o genmake2: disable pkg/profiles if netcdf test fails.
87    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
88    o move call to cal_readparms up to make calendar parameters/variable available
89      to all packages
90    
91    checkpoint58v_post
92    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
93      useDynP_inEos_Zc tested.
94    o pkg/exf: changes to properly interpolate/mask/scale initial fields
95    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
96      and portions thereof.  See read_cs.txt for description and examples.
97    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
98      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
99      following the great-circle arc between those 2 points.
100    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
101      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
102    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
103     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
104     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
105     - still needs work (not working with some options ; efficiency to improve)
106       and serious testing.
107     - use this scheme for temperature & salinity in 2 advection test exp.:
108       advect_xy & advect_xz, respectively.
109    
110    checkpoint58u_post
111    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
112    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
113    o testreport: add option "-skipdir" to skip some test.
114    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
115      momentum calculation.
116    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
117    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
118      remove checkpoint.F and the_correction_step.F (no longer used);
119      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
120    o add option (linFSConserveTr) to correct for tracer source/sink due to
121      Linear Free surface
122    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
123    o pkg/thsice: fix reading mnc-pickups
124    
125    checkpoint58t_post
126    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
127    o pkg/mdsio:
128     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
129       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
130       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
131     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
132     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
133       either MDS_READ_FIELD or MDS_WRITE_FIELD )
134     - new S/R (to replace MDSWRITEMETA), which allows to write more
135       informations (variable names, time ...) to meta files.
136     - modify rdmds.m to give back the meta file content.
137    o pkg/diagnostics: change vertical interpolation to be safer, and more
138       flexible (define p-levels to interpolate to in data.diagnostics);
139      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
140       diagnostic pointer.
141    o pkg/seaice: more cleaning up of seaice_growth, added many comments
142    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
143    o fix multi-category seaice:
144     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
145       SEAICE_MULTICATEGORY
146     - fix short wave heat flux
147    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
148       and allow to use EVP solver. Change forward lab_sea: test both EVP
149       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
150    o Initial check-in of lab_sea adjoint
151      (very similar to natl_box_adjoint/code_seaice)
152      * used C-grid and EVP solver
153      * used KPP, GM/Redi
154      * uses inAdExact=.TRUE.
155      * gradient checks fail for both ADM and TLM
156        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
157        f.d. gradients actually seem more problematic than ADM, TLM gradients;
158        issue is related to forward mismatch between g77 an ifort
159    o pkg/seaice: overhaul of thermodynamics
160     - growth.F and groatb.F are replaced by new routine seaice_growth.F
161     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
162     - move a few global fields out of SEAICE.h into seaice_growth.F and
163       make them 2D (FICE/QNETO/ ...)
164     - remove FO (it is the same as QNETO)
165     - introduce a few local fields to avoid modifying external fields such
166       as atemp, etc.
167    
168    checkpoint58s_post
169    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
170      changed exf_set_gen.F so that
171        genperiod=0 means input file is one time-constant field and
172        genperiod=-12 means input file contains 12 monthly means
173    o CG2D: use pre-computed solver main-diagonal (stored in common block);
174      this affects truncation error ; generate new output file for exp. which
175      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
176        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
177        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
178        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
179        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
180        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
181    o start implementation of deep-atmosphere and anelastic formulation
182    o verification: remove 2nd copy of input files and use script "prepare_run"
183      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
184    o mom_common/vecinv/fluxform: fix a few initialisation isssues
185    o profiles: fix for multithreaded case
186    
187    o diagnostics: rename few diags:
188      s/'PRESSURE'/'RCENTER '/g
189      s/'TICE    '/'oceFreez'/g
190      s/'TAUX    '/'oceTAUX '/g
191      s/'TAUY    '/'oceTAUY '/g
192      s/'SWFLUX  '/'oceQsw  '/g
193      s/DIFx/DFxE/g
194      s/DIFy/DFyE/g
195      and add few ocean-forcing diagnostics:
196      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
197    o modifications to pkg/seaice/growth.F and budget.F, which change results of
198      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
199      as actual snow thickness.  It now refers everywhere to effective snow
200      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
201    
202    checkpoint58r_post
203    o modifications to pkg/seaice/growth.F, which change results of
204      lab_sea experiment: fixes pertain to melting snow over open water, to
205      masking EVAP under sea ice, and to using the correct AREA variable for
206      computations of EVAP, PRECIP, HSNOW, and GHEFF
207    o add ability to read bathy, salt, and theta using MNC (off by def)
208    o add flooding algorithm and advection of HSNOW for pkg/seaice;
209      both are turned off by default and do no change any results
210    o seaice advection with pkg/thsice: a step toward the use of non-linear
211      advection scheme, but #ifdef or commented out for now (requires more EXCH).
212    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
213      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
214      in natl_box (affects results @ truncation level: update output.txt)
215    o multi-threading and IO:
216      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
217      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
218        (needed to work with SingleCpuIO): tested in all verif. exp.
219    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
220      affects the results (but none of the verification test uses this scheme).
221    o Adding some pkg/diagnostics capability to pkg/seaice
222      (will certainly be subject to changes)
223    o ctrl: adding new control variables:
224      lwflux, lwdown, evap, snowprecip, apressure, runoff
225    
226    checkpoint58q_post
227    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
228      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
229      high_res_cube configuration by 4% on Columbia.
230    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
231      add (in global_with_exf/code) a version of EXF_INTERP_READ without
232      dynamical allocation (seems to work in multi-threaded).
233    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
234      single CPU io) so that TAF does not have to see EESUPPORT.h
235    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
236    
237    checkpoint58p_post
238    o obcs: stop if obcs is used with useCDscheme = .true.
239    o shelfice:
240     - fix a sign error so that no slip at shelfice interface works
241     - remove stop for combination non-hydrostatic code and shelfice. That does
242       not mean, that the results are correct, but at least they are numerically
243       stable
244    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
245    o added adjoint exch routined for all exch*3d* routines
246      and updated flow directives
247    
248    checkpoint58o_post
249    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
250      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
251    o change controling S/R for writing pickup file (new S/R do_write_pickup)
252      and clean-up reading/writing of pickup files.
253    o fix local version of read/write pickup (NH part) in rotating_tank/code
254    o simplify EXCH interface:
255     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
256     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
257    o added the regrid package
258    o shelfice:
259     - add a simple boundary layer scheme to reduce noise
260     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
261    
262    checkpoint58n_post
263    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
264       local variable (not in common block).
265    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
266      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
267      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
268        to work with SingleCpuIO.
269    o add "_d 0" to real constant of pkg/cfc subroutines ;
270       update exp. cfc_exemple & tutorial_cfc_offline output files.
271    o multi-threading and IO:
272      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
273        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
274      - barrier before and after reading.
275      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
276      - avoid using MDS_WRITELOCAL for LAND pkg output.
277      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
278        common-block variables ; Allows multi-threading with master-thread IO.
279    o change default MAX_NO_THREADS from 32 to 4 ;
280      and stop cleanly when MAX_NO_THREADS is too small.
281    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
282    
283    checkpoint58m_post
284    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
285       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
286    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
287       keep global_ocean.90x40x15 (for AD testing) with former secondary test
288       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
289    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
290        add MITgcm_tutorials (= code + all the tutorials)
291    o ecco, option to compute cost for total ssh (mean+anom)
292    o consistent with addition of ptracer and ssh in pkg/profiles
293    o profiles: adding ptracer and ssh
294    o testreport: change multi-test output-file name
295      (from output.txt.{name} to output.{name}.txt)
296    o profiles: now ok for mutli-tiles case
297    o seaice: add 4 parameters for different advection schemes for area,
298      (effective) seaice thickness, enthalphy, and snow height. Their default
299      is the standard parameter SEAICEadvScheme
300    o calc_gw:
301     - add cosFacU in zonal viscous flux (harmonic.visc.).
302     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
303       of tutorial_plume_on_slope.
304    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
305    o calc_gw: true flux-form, account for horizontal grid spacing.
306      update rotating_tank results, but not plume_on_slope (affected at
307      truncation level, 11 digits).
308    
309    checkpoint58l_post
310    o calc_gw:
311     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
312     - remove side-drag for now (need to fix it); update plume_on_slope results.
313     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
314    o commit code to make SST/SSS weights spatially variable
315      (based on either variable in-situ or variable initial T/S weights)
316    o pkg/ecco:
317      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
318        now based on horizontally varying weights wthetaLev, wsaltLev
319      * cost_averagesflags now returns year indices in addition to day, month
320      * sflux balance is performed on annual basis
321        (sflxumm, sfluxmm2, bal_sfluxmm)
322      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
323        including separate counting and multipliers
324    o pkg/rbcs
325      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
326    
327    checkpoint58k_post
328    o testreport:
329     - always build in dir. "build" (if not there, mkdir build instead of building
330       & running in input)
331     - run in dir run (if it exists), in build otherwise.
332     - call prepare_run (if input/prepare_run exists)
333     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
334    o pkg/exf modifications to interpolation and rotation routines for more
335       reasonable treatment of North Pole singularity: for tracers North Pole
336       value is set to northernmost zonal-mean value, for zonal velocity it is
337       set to zero, and for meridional velocity it is set to northernmost value.
338    o pkg/exf/exf_check_range.F
339     - add tile index to diagnostics and move stop statement to the very
340       end of the routine.
341    o pkg/diagnostics: (diagnostics_main_init.F)
342      define title of isomorphic variables according to the current config.
343    o pkg/thsice with pkg/seaice dynamics:
344    - fix domain of computation (interior only, required for exf) and do exchanges
345    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
346    o towards a standard way of dealing with multi-threading in MONITOR
347      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
348    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
349       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
350    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
351    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
352    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
353       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
354    o tracer advection:
355     - clean-up and simplify calc_common_factors.F
356     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
357       advection subroutine (but still not used within DST advection S/R)
358    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
359    
360    checkpoint58j_post
361    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
362      from file (collects calls previously in FORWARD_STEP)
363    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
364    o adjoint store dir. adjusted accordingly
365    o genmake2
366      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
367    
368    checkpoint58i_post
369    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
370      on wind stress (SEAICEstressFactor defaults to 1.)
371    o Total number of Timers is finite (<=40): comment out 2 non-essential one
372      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
373    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
374      on CS-grid: no longer loosing mass.
375    o exf & curvilinear-grid: no longer modify longitude xC & xG.
376    o pkg/ggl90: fix sloppy output and fix a bug
377    o pkg/seaice: added SEAICEuseEVPpickup parameter
378      - Set to false in order to start EVP solver with
379        non-EVP pickup files when using SEAICEuseEVP
380      - fix sign error in diffusion in seaice_calc_rhs
381    
382    checkpoint58h_post
383    * Modifications for bottom topography control
384      o replace hFacC by _hFacC at various places
385      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
386      o add non-self-adjoint cg2d_nsa
387      o update autodiff support routines
388      o re-initialise hfac after ctrl_depth_ini
389      o works for 5x5 box, doesnt work for global_ocean.90x40x15
390    * Adding verification for 5x5 box (4-layer) bottom topography control
391    
392    checkpoint58g_post
393    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
394       used for mean seasonal cycle, mean diurnal cycle); add an example
395       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
396    o pkg/ggl90:
397      - add parameter (minimum surface kinetic energy)
398      - fix bug (avoiding division by zero)
399    o couple pkg/thsice to pkg/seaice:
400      - modify advection in seaice to accomodate new scalar fields to be advected
401      - only muliDimAdection scheme work with seaice/thsice
402      - mapping of thsice-variables to seaice-variables, back and forth
403      - does not break the verification experiments, but does not give the
404        desired results either
405    o pkg/seaice
406      - make (default) second order advection a bit less confusing?
407    
408    checkpoint58f_post
409    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
410      to pkg/seaice):
411      - new routines thsice_map_exf and thsice_get_exf provide the interface
412      - add an additional formal parameter to thsice_solve4temp
413    o pkg/exf:
414      - add new fields wspeed, snowprecip (to be able to couple to thsice)
415      - correct Stefan-Boltzmann constant
416      - new parameter for longwave surface emittance
417      - separate some stuff from exf_bulkformulae into new routines  
418        exf_radiation, exf_wind
419      - add new parameters and constants: longwave emissivity for ocean, ice
420        and snow, evaporation parameters over ice
421      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
422        either wind from stress or stress from wind
423    o pkg/thSIce:
424    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
425    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
426       and THSICE_CALC_THICKN
427    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
428    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
429      to make debugging easier.
430    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
431    o pkg/bulk_force:
432      - clean-up comments and parameters ;
433      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
434    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
435      generate new output for test-experiment: aim.5l_cs.thSI
436    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
437      testreport accordingly
438    
439    checkpoint58e_post
440    o SEAICE_CGRID adjoint done
441    o R_STAR adjoint implemented.
442      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
443      * need to sort out init. of h0facc, etc.
444    o Make pkg/profile fully independent of ecco,cost, etc. stuff
445      to be able to use it in pure forward.
446    
447    checkpoint58d_post
448    o upgrade simple test-experiment to tutorial example:
449     step.1: duplicate the experiment and (step.2) will remove the old copy.
450      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
451      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
452      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
453      tutorial_global_oce_biogeo    <- copy of dic_example
454      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
455      tutorial_plume_on_slope       <- copy of plume_on_slope
456      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
457      tutorial_global_oce_optim     <- empty for now (David ?)
458      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
459     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
460    o correct a sign problem in cost_scat.F
461    o obcs and ptracers: fix boundary conditions for advections schemes
462      with larger stencil
463    o thsice adjoint: start
464    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
465      completeness
466    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
467      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
468    o ptracers adjoint:
469      * avoid extensive recomputatations
470      * fix missing re-init. of gptr (missed by TAF)
471    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
472      me to turn off the excessive output to STDOUT that this package produces
473    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
474      and add those terms in Vector-Invariant formulation.
475    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
476      if the control period (xx_hfluxperiod etc) is 0
477    o in profiles pkg, clean routines and fix details
478    o in ecco pkg, reading ssh data:
479      fix problem in case the model does not start at iter0=0
480    o fix mnc-pickup/restart for ptracers
481    o new package prifiles:
482      code to compute profile-based cost by Gael Forget
483      (modifs in ecco, ctrl, autodiff)
484    o Benign bug fix in initialization (spotted by M. Mazloff) of
485      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
486    
487    checkpoint58c_post
488    o adjoint: finish NLFS adjoint and provide reference output in
489      verification/global_ocean.90x40x15/results_ad_nlfs
490    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
491      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
492      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
493      with SEAICE_CGRID defined.
494    o move calendarDumps from "data" to "data.cal" and clean-up the code
495      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
496    o add useEXF & useCAL flags (for now, set in hard-coded way)
497    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
498      (were missing in NH mode, and wrong in quasihydrostatic mode).
499      waiting for Chris updated version of calc_gw to add those CALLs.
500    o fix bug in quasihydrostatic S/R ;
501      add a test for this option: global_ocean.90x40x15.qshyd
502    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
503      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
504    o add on/off flag useOffLine for package OFFLINE
505    o seaice:
506      - modify advection so that it works also on the C-grid
507      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
508        problem in multi-tile runs with C-grid
509      - add flags for clipping ice velocities and/or masking solver forcing
510      - fix drag (ocean on ice) formulation and a bug that caused noise in the
511        C-grid solver
512      - added a few comments to seaice_diffusion.F
513      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
514        are now exclusive)
515      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
516        required re-ordering the code a little:
517       + make DAIRN global variable (defined in SEAICE)
518       + move computation of the viscosities eta and zeta into a new separate
519         routine (because I need to recompute them in seaice_ocean_stress.F)
520    
521    checkpoint58b_post
522    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
523      update output.txt of exp. aim.5l_cs.thSI
524    o various mnc cleanups and improvements:
525      + shrink lookup tables by factor of ~4
526      + better error reporting when running out of lookup space
527      + able to handle longer path/file names (up to 500 chars)
528    o adjoint:
529      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
530      - TBD: "hidden" mom_vecinv recomp. in dynamics
531    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
532     (allow to differentiate between forcing components using new integer flags:
533      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
534     and add new flag to put Dissipation tendency out of Adams-Bashforth.
535    o ecco
536      - enable trend removal from SSH anomaly obs.
537    o adjoint
538      - a fix for PmEpR when #undef EXACT_CONSERV
539      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
540      - try to fix "hidden" recomp. in forward_step for NLFS
541        (NLFS seems broken sometimes after I checked it in)
542    o seaice:
543     - add c-grid version of the dynamic solver:
544       + three new routines that are the c-grid substitute lsr, dynsolver
545         and ostres
546       + put a few fields that were local to dynsolver into global common
547         blocks, so that I can move the computation of stresses etc into
548         seaice_lsr (saves coding but may break the adjoint).
549     - replace more hardwired parameters by runtime parameters
550     - add ice masks that mask the rhs of the implicit solvers where there
551       is no ice (commented out in seaice_dynsolver, because i am not sure
552       if this works properly), eventually this should replace the clipping
553       of ice velocities in seaice_dynsolver to +/-40cm/s.
554    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
555      include it only where its needed
556    o move balancing of fluxes before the call of external_forcing_surf
557    o seaice:
558      - correct units of turning angles (now they are really in degrees)
559      - move computation of GWATX/Y out of main routine into dynsolver
560      - initialize GWATX/Y in seaice_init
561    o Apply mask on Fresh-Water flux (needed for SSH forcing).
562      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
563    o seaice: add runtime flags for turning angles (default to zero)
564    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
565      and trend from exf forcing and ctrl control adjustments
566    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
567      (since checkpoint57x_post)
568    o change the default rotation period to 86164.s = the Earth rotation
569    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
570      and based on a reference stratification. Tested within hs94.cs-32x32x5.
571    o seaice advection: add code for choosing between the default (2nd order
572      central differences) and multiDim advection schemes provided by
573      pkg/generic_advdiff
574    o seaice:
575      - removed all references to SEAICE_GRID.h fields from
576        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
577        (cubed-sphere configuration will change a little)
578      - grid computations in seaice_init are obsolete now.
579      - cleaned up code a little so that is easier to read (hopefully).
580      - added new (better?) discretizations of default advection and diffusion
581        (turn on with SEAICEuseFluxForm)
582      - replace 1 in 3d global fields by kSurface in growth.F
583      
584    checkpoint58a_post
585    o seaice:
586      - bug fix in advect.F
587    o shelfice:
588      - separate shelfice load anomaly from pload (breaks with time
589        dependent forcing), => introduce constant field shelficeLoadAnomaly.
590        Its default is 0., but it may be computed more cleverly from (unknown)
591        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
592        done offline. A good approximation of the pressure load anomaly is
593        necessary to avoid large initial adjustment processes underneath
594        deep-reaching shelfice.
595      - small fix in ISOMIP shelfice_thermodynamics
596      - add more sophisticated thermodynamics of Hellmer (1989), this is
597        now the default
598      - give a few constants more intuitive names
599    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
600      if bulk formulae are used in long integration (especially EmPmR). Turn
601      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
602      if balancePrintMean, the imbalance that is substracted is printed to
603      STDOUT.
604    o fix bug (typo) in obcs_apply_eta.F
605    o add a new package shelfice which enables us to model the circulation
606      underneath shelf-ice with draughts of hundreds of meters.
607     - works
608     - to do: + include improved thermodynamics
609              + check whether kSurfC (from model/inc/SURFACE.h) can be used
610                instead of new field kTopC
611              + can we use topoFile, Ro_surf and existing code in ini_depth.F
612                instead of new field R_shelfIce and new code in ini_depth.F
613                and ini_mask_etc.F?
614              + adjust vertical mixing schemes?
615    o seaice pkg:
616     - add a cpp-flag to include a simple formula for a salinity dependent
617       freezing point of sea water at the surface
618     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
619       meridional stresses are now different (and hopefully correct)
620    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
621       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
622       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
623    o pkg/diagnostics: add options and parameters for regional-statistics
624       diagnostics ; define regions by reading a region-mask from a file
625       (might add other options later)
626    o pkg/bulk_force:
627     - add option and parameters to use AIM surface-flux formulae.
628     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
629       others forcing fields (defined in PARM05, parameter file "data") are loaded
630       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
631     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
632     - use the right EXCH call for uwind,vwind (to work on CS-grid).
633     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
634       and parameters (note: calcWindStress replaces .NOT.readwindstress).
635     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
636    
637    checkpoint58
638    o add "--embed-source" option to genmake2 which, when the supporting
639      tools can be compiled (as determined by genmake2) will turn on the
640      embed_files package which then embeds the entire MITgcm source code
641      (*.[fFhc] + Makefile) used for the build within the executable
642      - requested by CNH but off by default
643      - adds a paltry <9MB to the mitgcmuv executable in most cases
644      - only writes the output when useEMBEDSRC in eedata is true
645    o clean up 3-dim. relaxation codes:
646      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
647      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
648      * Thanks to Tom Haine for testing!
649    
650    checkpoint57z_post
651    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
652      affects output (@ truncation level) of exp. plume_on_slope ; updated.
653    o fix the pickup behavior for obcs in combination with ptracers
654    o fix a bug in ptracers_external_fields_load
655    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
656      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
657    o transfered surface NH pressure to eta field (if exactConserv).
658    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
659         and update lab_sea output.txt file.
660    o completing 3-dim. relaxation code: additional term
661         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
662      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
663      * At compile time, in "EXF_OPTIONS.h" set
664          #define  ALLOW_CLIMTEMP_RELAXATION
665          #define  ALLOW_CLIMSALT_RELAXATION
666      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
667          tauThetaClimRelax3Dim = 15552000.0,
668          tauSaltClimRelax3Dim  = 15552000.0,
669      * 3 cases:
670          1) Use a constant-in-time 3-dim. field
671          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
672          3) Real-time relax. to time-evolving prescribed field
673    o Adding Laplacian-type smoothness constraint on
674      initial and boundary (forcing) controls (ic, bc)
675      * enable at compile-time via
676        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
677      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
678      * Absolute scale somewhat unclear so far
679      * no area weighting was included since no other cost term does so far
680    
681    checkpoint57y_post
682    First step for a NLFS adjoint
683    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
684    o new init. routines for calc_r_star, calc_surf_dr
685    o still need to deal with ini_masks_etc
686    o testreport seemed happy
687    checkpoint57y_pre
688    
689    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
690    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
691    o add new offset feature to offline pkg (plus minor cleanup)
692    o cfc fixes for final year of integration
693    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
694      be in GCHEM_OPTIONS).
695    
696    checkpoint57x_post
697    o fix testreport Pb in multiple test experiment.
698    o cleanup our namelist syntax in verification:
699      - make it more F95 standards compliant (some work still needed)
700      - allows the vast majority of our tests to work with gfortran
701    o Non-Hydrostatic:
702     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
703     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
704    o Allow to apply AB on T,S rather than on AB(gT,gS):
705     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
706     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
707       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
708     - need a "clever" read_pickup to restart from the other AB formulation
709    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
710    o remove some unused variables (reduces number of compiler warnings)
711    o adjoint
712      * Disable useVariableViscosity for adjoint for time being
713        (there are a number of extensive recomputations)
714      * Initialize certain variables needed for adjoint
715    
716    checkpoint57w_post
717    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
718                 fix the singleCpuIO RS version of MDSWRITEFIELD
719       and add a WARNING if using globalFiles=T with multi-processors.
720  o write grid-file(s) in only one format (MDS or MNC): default=MNC (if  o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
721    using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc    using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
722  o tracer advection scheme:  o tracer advection scheme:
723    add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get    add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
724     those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,     those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
725     was not very convenient).     was not very convenient).

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