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revision 1.587 by heimbach, Thu Dec 8 15:34:24 2005 UTC revision 1.814 by jmc, Fri May 11 14:32:32 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/exf:
8      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
9      EXF_INTERPOLATION:
10      - merge global_with_exf/code version of exf_interp_read.F
11        to the main code ;
12      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
13        reading the file ; Important: This options needs to be defined to recover
14        previous code.
15        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
16      - no longer loose real*8 precision along the way when using exf_iprec=64.
17    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
18      - change discretisation of evp-solver in order to avoid another exchange
19        (changes lab_sea) and clean up a little
20      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
21        help the adjoint (this also changes the results slightly)
22      - add a few "_d 0" where they had been missing in seaice_evp.F
23      - cleaning up: remove unused seaice_calc_rhs.F
24    o pkg/exf: some cleaning-up:
25      - change various "constants" into runtime parameters
26      - cleaned-up Large&Yeager04 routine which should eventually
27        replace exf_bulkformulae.F (changed names of S/R and CPP)
28        and merged various ALLOW_ATM_WIND options
29     only used with thsice pkg (in thsice_get_exf.F):
30      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
31        which are used when useStabilityFct_overIce=TRUE (= the default)
32      - change default values of ice & snow emissivity and scale downward LW
33        by ice & snow emissivity.
34    o pkg/thsice:
35     fix few little problems, in thsice_calc_thickn.F:
36      - growth vertically (and not laterally) if iceFrac == iceMaskMax
37      - melt laterally only if hIce < hThinIce (as the comments say)
38      and in thsice_extend.F:
39      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
40      - start to form ice as soon as the minimum ice-volume is reachable.
41     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
42      and cpl_aim+ocn
43    o pkg/kpp
44     - move computation of surface related input fields to KPP into a new
45       subroutine kpp_forcing_surf.F
46     - remove wrong (within bi,bj loops) EXCH calls.
47     - little cleaning (add argument myThid in last position, cvs header ...)
48     - for now, fix conservation problem by exchanging KPPviscAz (may not
49       be the best fix)
50    o pkg/seaice
51     - check for inconsistent evp parameter/cpp-flag combination
52     - remove leftover errIO flat for obsolete name list error handling
53    o OpenAD
54     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
55    
56    checkpoint59a
57    o pkg/seaice: some parameter clarifications and a little bit of clean up
58    o pkg/thsice: rename run-time parameters:
59       himin       -> hIceMin
60       himin0      -> hThinIce
61       hihig       -> hThickIce
62       i0          -> i0swFrac
63       transCoef   -> bMeltCoef
64       frac_energy -> fracMelting
65      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
66       with default values (for now) that do not change the results.
67      remove old version of thsice vars advection in pkg/seaice.
68    o in FFIELDS.h:
69      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
70      - make pLoad & sIceLoad always available (but still only used if
71         ATMOSPHERIC_LOADING is #define).
72    o pkg/kpp: replaced _KPP_RL with _RL
73    o bug fixes for vertical diffusivity computations when both KPP and
74        3D diffusivity arrays are used.
75    o pkg/seaice: fix bug in evp solver, while doing that
76      - change (improve?) discretization of stress computations for both
77        cgrid-lsr and evp solver
78      - add a new routine to compute strain rates
79      - the above changes lab_sea results
80      - add no slip conditions for evp solver (off by default), lsr-version
81        may follow
82      - fix exchange for shear at Z-points (does not change lab_sea)
83      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
84        (to force the user to pick a time step since there is not "safe" way
85        of choosing it)
86      - add principal stress diagnostics
87      - rearrange fields for evp a little to avoid having to call a: too many
88        exchanges and b: exchanges for stress trensor components which we do
89        not have.
90      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
91        of evp, complete rewrite for lsr case (latter is does not yet work
92        in all cases)
93    o pkg/kpp: add code to have mixing in shelf ice caverns
94      - add myThid to all kpp routines (long overdue)
95    
96    checkpoint59
97    o pkg/exf:
98      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
99        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
100      - move exf header files from lower_case.h to UPPER_CASE.h ;
101        add missing cvs Header & Name
102      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
103      - add namelist param. selectStressGridPosition, exf_monFreq
104      - retire many _CLIM routines, and remove data.exf_clim
105        + params moved to data.exf
106        + climsst, climsss now handled by exf_set_gen, i.e.
107          climss?period=0 refers to constant field,
108          climss?period=-12 to monthly forcing
109      - split up namelists in data.exf
110    o pkg/seaice:
111      - remove seaice_exch and seaice_exch_uv
112      - remove superfluous exchange of theta
113      - add myThid to seaice_budget_ocean/ice
114      - add new interface for atmospheric wind forcing (C-grid only)
115        + new routine
116        + two new field (taux, tauy for stress over ice)
117        + removed one global field (DAIRN) for C-grid case only
118    o pkg/thsise
119      - 2nd set of modifs for thsice adjoint in conjunction with exf
120    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
121    
122    checkpoint58y_post
123    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
124      vertical diffusivity, similar to that in MOM4; turned on using
125      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
126      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
127    o Added capability for 3D specification of background vertical diffusion
128      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
129      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
130      "data" file that contains the 3D vertical diffusivity coefficients.
131    o ice dynamics (pkg/seaice) with thsice thermodynamics:
132      - add code within pkg thsice to advect & diffuse sea-ice fields
133      similar to (and will replace) what has been added in  seaice_advdiff.F,
134      but: - conserving Mass, Heat & Salt.
135           - better when using non-linear advection scheme (not yet fully tested)
136           - can also be used in atmospheric set-up (for now, only the diffusion).
137    
138    checkpoint58x_post
139    o IO option for global-file compact format:
140      - add options when generating topology (utils/exch2/matlab-topology-generator)
141      - add I/O capability (pkg/mdsio).
142      - adapt utils/matlab/rdmds.m to read this format.
143      for now long-line format not yet supported by pkg/mdsio (& exch2).
144    o shelfice: add a few diagnostics
145    
146    checkpoint58w_post
147    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
148      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
149      (and replace horiVertRatio in NH code).
150      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
151                         and tutorial_plume_on_slope (sensitive to truncation)
152    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
153      directly to drive seaice model (C-grid only)
154    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
155     - reintroduce computation of wind from stress,
156     - compute tau (in exf_bulkformulae.F) from windstress averaged to
157       mass points to avoid tau = 0
158     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
159    o rdmnc.m: make it work with "global" files created with gluemnc
160    o rdmnc.m : some improvements in dealing with singleton dimension
161      (tested on all testreport mnc output files).
162    o genmake2: disable pkg/profiles if netcdf test fails.
163    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
164    o move call to cal_readparms up to make calendar parameters/variable available
165      to all packages
166    
167    checkpoint58v_post
168    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
169      useDynP_inEos_Zc tested.
170    o pkg/exf: changes to properly interpolate/mask/scale initial fields
171    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
172      and portions thereof.  See read_cs.txt for description and examples.
173    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
174      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
175      following the great-circle arc between those 2 points.
176    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
177      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
178    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
179     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
180     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
181     - still needs work (not working with some options ; efficiency to improve)
182       and serious testing.
183     - use this scheme for temperature & salinity in 2 advection test exp.:
184       advect_xy & advect_xz, respectively.
185    
186    checkpoint58u_post
187    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
188    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
189    o testreport: add option "-skipdir" to skip some test.
190    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
191      momentum calculation.
192    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
193    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
194      remove checkpoint.F and the_correction_step.F (no longer used);
195      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
196    o add option (linFSConserveTr) to correct for tracer source/sink due to
197      Linear Free surface
198    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
199    o pkg/thsice: fix reading mnc-pickups
200    
201    checkpoint58t_post
202    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
203    o pkg/mdsio:
204     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
205       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
206       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
207     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
208     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
209       either MDS_READ_FIELD or MDS_WRITE_FIELD )
210     - new S/R (to replace MDSWRITEMETA), which allows to write more
211       informations (variable names, time ...) to meta files.
212     - modify rdmds.m to give back the meta file content.
213    o pkg/diagnostics: change vertical interpolation to be safer, and more
214       flexible (define p-levels to interpolate to in data.diagnostics);
215      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
216       diagnostic pointer.
217    o pkg/seaice: more cleaning up of seaice_growth, added many comments
218    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
219    o fix multi-category seaice:
220     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
221       SEAICE_MULTICATEGORY
222     - fix short wave heat flux
223    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
224       and allow to use EVP solver. Change forward lab_sea: test both EVP
225       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
226    o Initial check-in of lab_sea adjoint
227      (very similar to natl_box_adjoint/code_seaice)
228      * used C-grid and EVP solver
229      * used KPP, GM/Redi
230      * uses inAdExact=.TRUE.
231      * gradient checks fail for both ADM and TLM
232        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
233        f.d. gradients actually seem more problematic than ADM, TLM gradients;
234        issue is related to forward mismatch between g77 an ifort
235    o pkg/seaice: overhaul of thermodynamics
236     - growth.F and groatb.F are replaced by new routine seaice_growth.F
237     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
238     - move a few global fields out of SEAICE.h into seaice_growth.F and
239       make them 2D (FICE/QNETO/ ...)
240     - remove FO (it is the same as QNETO)
241     - introduce a few local fields to avoid modifying external fields such
242       as atemp, etc.
243    
244    checkpoint58s_post
245    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
246      changed exf_set_gen.F so that
247        genperiod=0 means input file is one time-constant field and
248        genperiod=-12 means input file contains 12 monthly means
249    o CG2D: use pre-computed solver main-diagonal (stored in common block);
250      this affects truncation error ; generate new output file for exp. which
251      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
252        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
253        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
254        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
255        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
256        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
257    o start implementation of deep-atmosphere and anelastic formulation
258    o verification: remove 2nd copy of input files and use script "prepare_run"
259      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
260    o mom_common/vecinv/fluxform: fix a few initialisation isssues
261    o profiles: fix for multithreaded case
262    
263    o diagnostics: rename few diags:
264      s/'PRESSURE'/'RCENTER '/g
265      s/'TICE    '/'oceFreez'/g
266      s/'TAUX    '/'oceTAUX '/g
267      s/'TAUY    '/'oceTAUY '/g
268      s/'SWFLUX  '/'oceQsw  '/g
269      s/DIFx/DFxE/g
270      s/DIFy/DFyE/g
271      and add few ocean-forcing diagnostics:
272      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
273    o modifications to pkg/seaice/growth.F and budget.F, which change results of
274      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
275      as actual snow thickness.  It now refers everywhere to effective snow
276      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
277    
278    checkpoint58r_post
279    o modifications to pkg/seaice/growth.F, which change results of
280      lab_sea experiment: fixes pertain to melting snow over open water, to
281      masking EVAP under sea ice, and to using the correct AREA variable for
282      computations of EVAP, PRECIP, HSNOW, and GHEFF
283    o add ability to read bathy, salt, and theta using MNC (off by def)
284    o add flooding algorithm and advection of HSNOW for pkg/seaice;
285      both are turned off by default and do no change any results
286    o seaice advection with pkg/thsice: a step toward the use of non-linear
287      advection scheme, but #ifdef or commented out for now (requires more EXCH).
288    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
289      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
290      in natl_box (affects results @ truncation level: update output.txt)
291    o multi-threading and IO:
292      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
293      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
294        (needed to work with SingleCpuIO): tested in all verif. exp.
295    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
296      affects the results (but none of the verification test uses this scheme).
297    o Adding some pkg/diagnostics capability to pkg/seaice
298      (will certainly be subject to changes)
299    o ctrl: adding new control variables:
300      lwflux, lwdown, evap, snowprecip, apressure, runoff
301    
302    checkpoint58q_post
303    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
304      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
305      high_res_cube configuration by 4% on Columbia.
306    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
307      add (in global_with_exf/code) a version of EXF_INTERP_READ without
308      dynamical allocation (seems to work in multi-threaded).
309    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
310      single CPU io) so that TAF does not have to see EESUPPORT.h
311    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
312    
313    checkpoint58p_post
314    o obcs: stop if obcs is used with useCDscheme = .true.
315    o shelfice:
316     - fix a sign error so that no slip at shelfice interface works
317     - remove stop for combination non-hydrostatic code and shelfice. That does
318       not mean, that the results are correct, but at least they are numerically
319       stable
320    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
321    o added adjoint exch routined for all exch*3d* routines
322      and updated flow directives
323    
324    checkpoint58o_post
325    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
326      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
327    o change controling S/R for writing pickup file (new S/R do_write_pickup)
328      and clean-up reading/writing of pickup files.
329    o fix local version of read/write pickup (NH part) in rotating_tank/code
330    o simplify EXCH interface:
331     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
332     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
333    o added the regrid package
334    o shelfice:
335     - add a simple boundary layer scheme to reduce noise
336     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
337    
338    checkpoint58n_post
339    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
340       local variable (not in common block).
341    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
342      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
343      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
344        to work with SingleCpuIO.
345    o add "_d 0" to real constant of pkg/cfc subroutines ;
346       update exp. cfc_exemple & tutorial_cfc_offline output files.
347    o multi-threading and IO:
348      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
349        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
350      - barrier before and after reading.
351      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
352      - avoid using MDS_WRITELOCAL for LAND pkg output.
353      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
354        common-block variables ; Allows multi-threading with master-thread IO.
355    o change default MAX_NO_THREADS from 32 to 4 ;
356      and stop cleanly when MAX_NO_THREADS is too small.
357    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
358    
359    checkpoint58m_post
360    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
361       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
362    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
363       keep global_ocean.90x40x15 (for AD testing) with former secondary test
364       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
365    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
366        add MITgcm_tutorials (= code + all the tutorials)
367    o ecco, option to compute cost for total ssh (mean+anom)
368    o consistent with addition of ptracer and ssh in pkg/profiles
369    o profiles: adding ptracer and ssh
370    o testreport: change multi-test output-file name
371      (from output.txt.{name} to output.{name}.txt)
372    o profiles: now ok for mutli-tiles case
373    o seaice: add 4 parameters for different advection schemes for area,
374      (effective) seaice thickness, enthalphy, and snow height. Their default
375      is the standard parameter SEAICEadvScheme
376    o calc_gw:
377     - add cosFacU in zonal viscous flux (harmonic.visc.).
378     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
379       of tutorial_plume_on_slope.
380    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
381    o calc_gw: true flux-form, account for horizontal grid spacing.
382      update rotating_tank results, but not plume_on_slope (affected at
383      truncation level, 11 digits).
384    
385    checkpoint58l_post
386    o calc_gw:
387     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
388     - remove side-drag for now (need to fix it); update plume_on_slope results.
389     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
390    o commit code to make SST/SSS weights spatially variable
391      (based on either variable in-situ or variable initial T/S weights)
392    o pkg/ecco:
393      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
394        now based on horizontally varying weights wthetaLev, wsaltLev
395      * cost_averagesflags now returns year indices in addition to day, month
396      * sflux balance is performed on annual basis
397        (sflxumm, sfluxmm2, bal_sfluxmm)
398      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
399        including separate counting and multipliers
400    o pkg/rbcs
401      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
402    
403    checkpoint58k_post
404    o testreport:
405     - always build in dir. "build" (if not there, mkdir build instead of building
406       & running in input)
407     - run in dir run (if it exists), in build otherwise.
408     - call prepare_run (if input/prepare_run exists)
409     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
410    o pkg/exf modifications to interpolation and rotation routines for more
411       reasonable treatment of North Pole singularity: for tracers North Pole
412       value is set to northernmost zonal-mean value, for zonal velocity it is
413       set to zero, and for meridional velocity it is set to northernmost value.
414    o pkg/exf/exf_check_range.F
415     - add tile index to diagnostics and move stop statement to the very
416       end of the routine.
417    o pkg/diagnostics: (diagnostics_main_init.F)
418      define title of isomorphic variables according to the current config.
419    o pkg/thsice with pkg/seaice dynamics:
420    - fix domain of computation (interior only, required for exf) and do exchanges
421    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
422    o towards a standard way of dealing with multi-threading in MONITOR
423      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
424    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
425       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
426    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
427    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
428    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
429       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
430    o tracer advection:
431     - clean-up and simplify calc_common_factors.F
432     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
433       advection subroutine (but still not used within DST advection S/R)
434    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
435    
436    checkpoint58j_post
437    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
438      from file (collects calls previously in FORWARD_STEP)
439    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
440    o adjoint store dir. adjusted accordingly
441    o genmake2
442      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
443    
444    checkpoint58i_post
445    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
446      on wind stress (SEAICEstressFactor defaults to 1.)
447    o Total number of Timers is finite (<=40): comment out 2 non-essential one
448      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
449    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
450      on CS-grid: no longer loosing mass.
451    o exf & curvilinear-grid: no longer modify longitude xC & xG.
452    o pkg/ggl90: fix sloppy output and fix a bug
453    o pkg/seaice: added SEAICEuseEVPpickup parameter
454      - Set to false in order to start EVP solver with
455        non-EVP pickup files when using SEAICEuseEVP
456      - fix sign error in diffusion in seaice_calc_rhs
457    
458    checkpoint58h_post
459    * Modifications for bottom topography control
460      o replace hFacC by _hFacC at various places
461      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
462      o add non-self-adjoint cg2d_nsa
463      o update autodiff support routines
464      o re-initialise hfac after ctrl_depth_ini
465      o works for 5x5 box, doesnt work for global_ocean.90x40x15
466    * Adding verification for 5x5 box (4-layer) bottom topography control
467    
468    checkpoint58g_post
469    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
470       used for mean seasonal cycle, mean diurnal cycle); add an example
471       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
472    o pkg/ggl90:
473      - add parameter (minimum surface kinetic energy)
474      - fix bug (avoiding division by zero)
475    o couple pkg/thsice to pkg/seaice:
476      - modify advection in seaice to accomodate new scalar fields to be advected
477      - only muliDimAdection scheme work with seaice/thsice
478      - mapping of thsice-variables to seaice-variables, back and forth
479      - does not break the verification experiments, but does not give the
480        desired results either
481    o pkg/seaice
482      - make (default) second order advection a bit less confusing?
483    
484    checkpoint58f_post
485    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
486      to pkg/seaice):
487      - new routines thsice_map_exf and thsice_get_exf provide the interface
488      - add an additional formal parameter to thsice_solve4temp
489    o pkg/exf:
490      - add new fields wspeed, snowprecip (to be able to couple to thsice)
491      - correct Stefan-Boltzmann constant
492      - new parameter for longwave surface emittance
493      - separate some stuff from exf_bulkformulae into new routines  
494        exf_radiation, exf_wind
495      - add new parameters and constants: longwave emissivity for ocean, ice
496        and snow, evaporation parameters over ice
497      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
498        either wind from stress or stress from wind
499    o pkg/thSIce:
500    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
501    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
502       and THSICE_CALC_THICKN
503    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
504    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
505      to make debugging easier.
506    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
507    o pkg/bulk_force:
508      - clean-up comments and parameters ;
509      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
510    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
511      generate new output for test-experiment: aim.5l_cs.thSI
512    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
513      testreport accordingly
514    
515    checkpoint58e_post
516    o SEAICE_CGRID adjoint done
517    o R_STAR adjoint implemented.
518      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
519      * need to sort out init. of h0facc, etc.
520    o Make pkg/profile fully independent of ecco,cost, etc. stuff
521      to be able to use it in pure forward.
522    
523    checkpoint58d_post
524    o upgrade simple test-experiment to tutorial example:
525     step.1: duplicate the experiment and (step.2) will remove the old copy.
526      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
527      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
528      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
529      tutorial_global_oce_biogeo    <- copy of dic_example
530      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
531      tutorial_plume_on_slope       <- copy of plume_on_slope
532      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
533      tutorial_global_oce_optim     <- empty for now (David ?)
534      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
535     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
536    o correct a sign problem in cost_scat.F
537    o obcs and ptracers: fix boundary conditions for advections schemes
538      with larger stencil
539    o thsice adjoint: start
540    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
541      completeness
542    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
543      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
544    o ptracers adjoint:
545      * avoid extensive recomputatations
546      * fix missing re-init. of gptr (missed by TAF)
547    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
548      me to turn off the excessive output to STDOUT that this package produces
549    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
550      and add those terms in Vector-Invariant formulation.
551    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
552      if the control period (xx_hfluxperiod etc) is 0
553    o in profiles pkg, clean routines and fix details
554    o in ecco pkg, reading ssh data:
555      fix problem in case the model does not start at iter0=0
556    o fix mnc-pickup/restart for ptracers
557    o new package prifiles:
558      code to compute profile-based cost by Gael Forget
559      (modifs in ecco, ctrl, autodiff)
560    o Benign bug fix in initialization (spotted by M. Mazloff) of
561      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
562    
563    checkpoint58c_post
564    o adjoint: finish NLFS adjoint and provide reference output in
565      verification/global_ocean.90x40x15/results_ad_nlfs
566    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
567      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
568      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
569      with SEAICE_CGRID defined.
570    o move calendarDumps from "data" to "data.cal" and clean-up the code
571      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
572    o add useEXF & useCAL flags (for now, set in hard-coded way)
573    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
574      (were missing in NH mode, and wrong in quasihydrostatic mode).
575      waiting for Chris updated version of calc_gw to add those CALLs.
576    o fix bug in quasihydrostatic S/R ;
577      add a test for this option: global_ocean.90x40x15.qshyd
578    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
579      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
580    o add on/off flag useOffLine for package OFFLINE
581    o seaice:
582      - modify advection so that it works also on the C-grid
583      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
584        problem in multi-tile runs with C-grid
585      - add flags for clipping ice velocities and/or masking solver forcing
586      - fix drag (ocean on ice) formulation and a bug that caused noise in the
587        C-grid solver
588      - added a few comments to seaice_diffusion.F
589      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
590        are now exclusive)
591      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
592        required re-ordering the code a little:
593       + make DAIRN global variable (defined in SEAICE)
594       + move computation of the viscosities eta and zeta into a new separate
595         routine (because I need to recompute them in seaice_ocean_stress.F)
596    
597    checkpoint58b_post
598    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
599      update output.txt of exp. aim.5l_cs.thSI
600    o various mnc cleanups and improvements:
601      + shrink lookup tables by factor of ~4
602      + better error reporting when running out of lookup space
603      + able to handle longer path/file names (up to 500 chars)
604    o adjoint:
605      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
606      - TBD: "hidden" mom_vecinv recomp. in dynamics
607    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
608     (allow to differentiate between forcing components using new integer flags:
609      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
610     and add new flag to put Dissipation tendency out of Adams-Bashforth.
611    o ecco
612      - enable trend removal from SSH anomaly obs.
613    o adjoint
614      - a fix for PmEpR when #undef EXACT_CONSERV
615      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
616      - try to fix "hidden" recomp. in forward_step for NLFS
617        (NLFS seems broken sometimes after I checked it in)
618    o seaice:
619     - add c-grid version of the dynamic solver:
620       + three new routines that are the c-grid substitute lsr, dynsolver
621         and ostres
622       + put a few fields that were local to dynsolver into global common
623         blocks, so that I can move the computation of stresses etc into
624         seaice_lsr (saves coding but may break the adjoint).
625     - replace more hardwired parameters by runtime parameters
626     - add ice masks that mask the rhs of the implicit solvers where there
627       is no ice (commented out in seaice_dynsolver, because i am not sure
628       if this works properly), eventually this should replace the clipping
629       of ice velocities in seaice_dynsolver to +/-40cm/s.
630    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
631      include it only where its needed
632    o move balancing of fluxes before the call of external_forcing_surf
633    o seaice:
634      - correct units of turning angles (now they are really in degrees)
635      - move computation of GWATX/Y out of main routine into dynsolver
636      - initialize GWATX/Y in seaice_init
637    o Apply mask on Fresh-Water flux (needed for SSH forcing).
638      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
639    o seaice: add runtime flags for turning angles (default to zero)
640    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
641      and trend from exf forcing and ctrl control adjustments
642    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
643      (since checkpoint57x_post)
644    o change the default rotation period to 86164.s = the Earth rotation
645    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
646      and based on a reference stratification. Tested within hs94.cs-32x32x5.
647    o seaice advection: add code for choosing between the default (2nd order
648      central differences) and multiDim advection schemes provided by
649      pkg/generic_advdiff
650    o seaice:
651      - removed all references to SEAICE_GRID.h fields from
652        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
653        (cubed-sphere configuration will change a little)
654      - grid computations in seaice_init are obsolete now.
655      - cleaned up code a little so that is easier to read (hopefully).
656      - added new (better?) discretizations of default advection and diffusion
657        (turn on with SEAICEuseFluxForm)
658      - replace 1 in 3d global fields by kSurface in growth.F
659      
660    checkpoint58a_post
661    o seaice:
662      - bug fix in advect.F
663    o shelfice:
664      - separate shelfice load anomaly from pload (breaks with time
665        dependent forcing), => introduce constant field shelficeLoadAnomaly.
666        Its default is 0., but it may be computed more cleverly from (unknown)
667        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
668        done offline. A good approximation of the pressure load anomaly is
669        necessary to avoid large initial adjustment processes underneath
670        deep-reaching shelfice.
671      - small fix in ISOMIP shelfice_thermodynamics
672      - add more sophisticated thermodynamics of Hellmer (1989), this is
673        now the default
674      - give a few constants more intuitive names
675    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
676      if bulk formulae are used in long integration (especially EmPmR). Turn
677      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
678      if balancePrintMean, the imbalance that is substracted is printed to
679      STDOUT.
680    o fix bug (typo) in obcs_apply_eta.F
681    o add a new package shelfice which enables us to model the circulation
682      underneath shelf-ice with draughts of hundreds of meters.
683     - works
684     - to do: + include improved thermodynamics
685              + check whether kSurfC (from model/inc/SURFACE.h) can be used
686                instead of new field kTopC
687              + can we use topoFile, Ro_surf and existing code in ini_depth.F
688                instead of new field R_shelfIce and new code in ini_depth.F
689                and ini_mask_etc.F?
690              + adjust vertical mixing schemes?
691    o seaice pkg:
692     - add a cpp-flag to include a simple formula for a salinity dependent
693       freezing point of sea water at the surface
694     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
695       meridional stresses are now different (and hopefully correct)
696    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
697       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
698       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
699    o pkg/diagnostics: add options and parameters for regional-statistics
700       diagnostics ; define regions by reading a region-mask from a file
701       (might add other options later)
702    o pkg/bulk_force:
703     - add option and parameters to use AIM surface-flux formulae.
704     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
705       others forcing fields (defined in PARM05, parameter file "data") are loaded
706       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
707     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
708     - use the right EXCH call for uwind,vwind (to work on CS-grid).
709     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
710       and parameters (note: calcWindStress replaces .NOT.readwindstress).
711     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
712    
713    checkpoint58
714    o add "--embed-source" option to genmake2 which, when the supporting
715      tools can be compiled (as determined by genmake2) will turn on the
716      embed_files package which then embeds the entire MITgcm source code
717      (*.[fFhc] + Makefile) used for the build within the executable
718      - requested by CNH but off by default
719      - adds a paltry <9MB to the mitgcmuv executable in most cases
720      - only writes the output when useEMBEDSRC in eedata is true
721    o clean up 3-dim. relaxation codes:
722      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
723      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
724      * Thanks to Tom Haine for testing!
725    
726    checkpoint57z_post
727    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
728      affects output (@ truncation level) of exp. plume_on_slope ; updated.
729    o fix the pickup behavior for obcs in combination with ptracers
730    o fix a bug in ptracers_external_fields_load
731    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
732      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
733    o transfered surface NH pressure to eta field (if exactConserv).
734    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
735         and update lab_sea output.txt file.
736    o completing 3-dim. relaxation code: additional term
737         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
738      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
739      * At compile time, in "EXF_OPTIONS.h" set
740          #define  ALLOW_CLIMTEMP_RELAXATION
741          #define  ALLOW_CLIMSALT_RELAXATION
742      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
743          tauThetaClimRelax3Dim = 15552000.0,
744          tauSaltClimRelax3Dim  = 15552000.0,
745      * 3 cases:
746          1) Use a constant-in-time 3-dim. field
747          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
748          3) Real-time relax. to time-evolving prescribed field
749    o Adding Laplacian-type smoothness constraint on
750      initial and boundary (forcing) controls (ic, bc)
751      * enable at compile-time via
752        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
753      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
754      * Absolute scale somewhat unclear so far
755      * no area weighting was included since no other cost term does so far
756    
757    checkpoint57y_post
758    First step for a NLFS adjoint
759    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
760    o new init. routines for calc_r_star, calc_surf_dr
761    o still need to deal with ini_masks_etc
762    o testreport seemed happy
763  checkpoint57y_pre  checkpoint57y_pre
764    
765  o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.  o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.

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