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revision 1.618 by jmc, Thu Mar 2 22:52:09 2006 UTC revision 1.846 by dimitri, Fri Jun 22 06:41:09 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
8      scheme and the corresponding test case (under front_relax dir). For now,
9      only available with Skew-flux form and not yet tested in realistic set-up.
10    o seaice adjoint
11      * add AREA, HEFF, HSNOW as control variable
12        (should not change lab_sea results)
13      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
14    o pkg/seaice: added computation of saltFlux in seaice_growth;
15       For time being, sea ice salinity is assumed constant
16       contribution of snow flooding to freshening of sea ice is neglected.
17       SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
18       defaults to 0.0 in order to maintain backward compatibility.
19       Typical values for SEAICE_salinity are 4 to 10 g/kg.
20    
21    checkpoint59d
22    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
23     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
24     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
25    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
26     and change default value of parameter "GM_Small_Number";
27     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
28       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
29       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
30    o pkg/ecco: cost function when applying pkg/smooth to controls
31    o pkg/ctrl: add forcingPrecond run time parameter
32    o pkg/seaice:
33     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
34     - fix bug in metric terms of u-equation in LSR solver (implicit part),
35       changes verification/lab_sea
36     - rearrange implicit part of u-equation in LSR solver to make it easier to
37       read, understand, and debug. This causes changes at the truncation level.
38     - fix (serious) bug in the boundary conditions (sign error in the implicit
39       part) of the LSR solver. Changes all LSR results.
40     - fixed problem with HSNOW initialization to avoid thick snow when AREA
41       is initilized with small values - does not change lab_sea results.
42     - added HsnowFile initialization capability
43    o pkg/smooth: addition to model/src and pkg/ctrl so allow
44     initialization of pkg/smooth and application to control vector
45    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
46    o dependencies: pkg/profiles requires pkg/cal
47    o pkg/profiles:
48     - added option ALLOW_PROFILES_GENERICGRID
49         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
50         that interpolation information (grid points and coefficients) is provided
51         within the netcdf input files.
52         -> sample matlab scripts can be found in MITgcm_contrib/gael
53         that allow you to prepare netcdf input files.
54     - also modified: cleaner include statements, cleaner error print statements,
55       cleaner stops when error, and more tests of the netcdf input files consistency.
56    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
57    o pkg/seaice:
58     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
59       requires a new routine: seaice_diagnostics_fill.F
60     - make sure that seaice does not move if not forced (pressure replacement
61       method, Hibler and Ip, 1995), changes results
62     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
63     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
64       It is turned off by default (=-1.), because it changes the results.
65     - make it possible to read AREA from a file, too.
66    
67    checkpoint59c
68    o add S/R and diagnostics for oceanic mixed-layer depth
69    o move GMRedi call after all vertical mixing schemes (including KPP)
70    o pkg/thsice:
71     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
72      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
73    o pkg/obcs:
74     - bug fix for balance code
75    o pkg/seaice:
76      - allow values of SEAICE_elasticParm > 1
77      - add new parameter SEAICE_evpTauRelax as an alternative
78        to SEAICE_elasticParm
79      - make lsr boundary conditions free slip (by default), changes result
80      - add code for no slip boundary conditions for lsr
81      - set minimum of zeta to zero (and not 4e8) (changes results)
82      - add a cap on AREA after advecting AREA if seaice_growth is not called
83    o change calculation of Visbeck K:
84      - no longer depend on tapering scheme; instead, compute slope (limited
85        by GM_maxSlope). this is equivalent to what was comuted before with
86        clipping or linear tappering.
87      - fix vertical averaging (wrong by 1/2 level)
88      - leave the old version (but will not be maintained) within
89        #ifdef OLD_VISBECK_CALC / #endif
90      - update output of exp. ideal_2D_oce
91    o change error catch in calc_r_star to improve vectorization
92    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
93      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
94    o adjoint:
95      Re-organized adjoint checkpointing according to Matt Mazloff
96      (but with modifs/completions/cleanups)
97      Storing is now bundled into large arrays to optimized I/O
98      (and second step in cleanup of the_main_loop)
99    
100    checkpoint59b
101    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
102      - export/import (between ocean & coupler) fields needed for ocean DIC.
103    o pkg/seaice:
104      - get rid of three more exchanges seaice_calc_viscosities (required
105        different loop boundaries in seaice_lsr and seaice_ocean_stress)
106      - bug fix in seaice_ocean_stress (update of lab_sea required)
107      - reduce loop boundaries to necessary minimum also in seaice_evp
108      - go back to the old way of computing deltaC/Z as the adjoint likes that
109        better
110    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
111      passive tracer to an Age Tracer) + update output.txt
112    o pkg/exf:
113      - implement A-grid / C-grid selection for wind-stress input files.
114      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
115      for now, in exf_bulk_largeyeager04.F only :
116      - change implementation for case where windspeed + 2. components wind-stress
117        are read-in. AND use rhoConstFresh to convert evap.
118    o pkg/seaice:
119      - use correct EXCH_UV for wind-forcing (on A-grid).
120      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
121        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
122    o pkg/exf:
123      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
124      EXF_INTERPOLATION:
125      - merge global_with_exf/code version of exf_interp_read.F
126        to the main code ;
127      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
128        reading the file ; Important: This options needs to be defined to recover
129        previous code.
130        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
131      - no longer loose real*8 precision along the way when using exf_iprec=64.
132    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
133      - change discretisation of evp-solver in order to avoid another exchange
134        (changes lab_sea) and clean up a little
135      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
136        help the adjoint (this also changes the results slightly)
137      - add a few "_d 0" where they had been missing in seaice_evp.F
138      - cleaning up: remove unused seaice_calc_rhs.F
139    o pkg/exf: some cleaning-up:
140      - change various "constants" into runtime parameters
141      - cleaned-up Large&Yeager04 routine which should eventually
142        replace exf_bulkformulae.F (changed names of S/R and CPP)
143        and merged various ALLOW_ATM_WIND options
144     only used with thsice pkg (in thsice_get_exf.F):
145      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
146        which are used when useStabilityFct_overIce=TRUE (= the default)
147      - change default values of ice & snow emissivity and scale downward LW
148        by ice & snow emissivity.
149    o pkg/thsice:
150     fix few little problems, in thsice_calc_thickn.F:
151      - growth vertically (and not laterally) if iceFrac == iceMaskMax
152      - melt only laterally if hIce < hThinIce (as the comments say)
153      and in thsice_extend.F:
154      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
155      - start to form ice as soon as the minimum ice-volume is reachable.
156     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
157      and cpl_aim+ocn
158    o pkg/kpp
159     - move computation of surface related input fields to KPP into a new
160       subroutine kpp_forcing_surf.F
161     - remove wrong (within bi,bj loops) EXCH calls.
162     - little cleaning (add argument myThid in last position, cvs header ...)
163     - for now, fix conservation problem by exchanging KPPviscAz (may not
164       be the best fix)
165    o pkg/seaice
166     - check for inconsistent evp parameter/cpp-flag combination
167     - remove leftover errIO flat for obsolete name list error handling
168    o OpenAD
169     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
170    
171    checkpoint59a
172    o pkg/seaice: some parameter clarifications and a little bit of clean up
173    o pkg/thsice: rename run-time parameters:
174       himin       -> hIceMin
175       himin0      -> hThinIce
176       hihig       -> hThickIce
177       i0          -> i0swFrac
178       transCoef   -> bMeltCoef
179       frac_energy -> fracMelting
180      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
181       with default values (for now) that do not change the results.
182      remove old version of thsice vars advection in pkg/seaice.
183    o in FFIELDS.h:
184      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
185      - make pLoad & sIceLoad always available (but still only used if
186         ATMOSPHERIC_LOADING is #define).
187    o pkg/kpp: replaced _KPP_RL with _RL
188    o bug fixes for vertical diffusivity computations when both KPP and
189        3D diffusivity arrays are used.
190    o pkg/seaice: fix bug in evp solver, while doing that
191      - change (improve?) discretization of stress computations for both
192        cgrid-lsr and evp solver
193      - add a new routine to compute strain rates
194      - the above changes lab_sea results
195      - add no slip conditions for evp solver (off by default), lsr-version
196        may follow
197      - fix exchange for shear at Z-points (does not change lab_sea)
198      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
199        (to force the user to pick a time step since there is not "safe" way
200        of choosing it)
201      - add principal stress diagnostics
202      - rearrange fields for evp a little to avoid having to call a: too many
203        exchanges and b: exchanges for stress trensor components which we do
204        not have.
205      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
206        of evp, complete rewrite for lsr case (latter is does not yet work
207        in all cases)
208    o pkg/kpp: add code to have mixing in shelf ice caverns
209      - add myThid to all kpp routines (long overdue)
210    
211    checkpoint59
212    o pkg/exf:
213      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
214        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
215      - move exf header files from lower_case.h to UPPER_CASE.h ;
216        add missing cvs Header & Name
217      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
218      - add namelist param. selectStressGridPosition, exf_monFreq
219      - retire many _CLIM routines, and remove data.exf_clim
220        + params moved to data.exf
221        + climsst, climsss now handled by exf_set_gen, i.e.
222          climss?period=0 refers to constant field,
223          climss?period=-12 to monthly forcing
224      - split up namelists in data.exf
225    o pkg/seaice:
226      - remove seaice_exch and seaice_exch_uv
227      - remove superfluous exchange of theta
228      - add myThid to seaice_budget_ocean/ice
229      - add new interface for atmospheric wind forcing (C-grid only)
230        + new routine
231        + two new field (taux, tauy for stress over ice)
232        + removed one global field (DAIRN) for C-grid case only
233    o pkg/thsise
234      - 2nd set of modifs for thsice adjoint in conjunction with exf
235    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
236    
237    checkpoint58y_post
238    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
239      vertical diffusivity, similar to that in MOM4; turned on using
240      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
241      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
242    o Added capability for 3D specification of background vertical diffusion
243      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
244      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
245      "data" file that contains the 3D vertical diffusivity coefficients.
246    o ice dynamics (pkg/seaice) with thsice thermodynamics:
247      - add code within pkg thsice to advect & diffuse sea-ice fields
248      similar to (and will replace) what has been added in  seaice_advdiff.F,
249      but: - conserving Mass, Heat & Salt.
250           - better when using non-linear advection scheme (not yet fully tested)
251           - can also be used in atmospheric set-up (for now, only the diffusion).
252    
253    checkpoint58x_post
254    o IO option for global-file compact format:
255      - add options when generating topology (utils/exch2/matlab-topology-generator)
256      - add I/O capability (pkg/mdsio).
257      - adapt utils/matlab/rdmds.m to read this format.
258      for now long-line format not yet supported by pkg/mdsio (& exch2).
259    o shelfice: add a few diagnostics
260    
261    checkpoint58w_post
262    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
263      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
264      (and replace horiVertRatio in NH code).
265      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
266                         and tutorial_plume_on_slope (sensitive to truncation)
267    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
268      directly to drive seaice model (C-grid only)
269    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
270     - reintroduce computation of wind from stress,
271     - compute tau (in exf_bulkformulae.F) from windstress averaged to
272       mass points to avoid tau = 0
273     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
274    o rdmnc.m: make it work with "global" files created with gluemnc
275    o rdmnc.m : some improvements in dealing with singleton dimension
276      (tested on all testreport mnc output files).
277    o genmake2: disable pkg/profiles if netcdf test fails.
278    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
279    o move call to cal_readparms up to make calendar parameters/variable available
280      to all packages
281    
282    checkpoint58v_post
283    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
284      useDynP_inEos_Zc tested.
285    o pkg/exf: changes to properly interpolate/mask/scale initial fields
286    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
287      and portions thereof.  See read_cs.txt for description and examples.
288    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
289      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
290      following the great-circle arc between those 2 points.
291    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
292      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
293    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
294     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
295     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
296     - still needs work (not working with some options ; efficiency to improve)
297       and serious testing.
298     - use this scheme for temperature & salinity in 2 advection test exp.:
299       advect_xy & advect_xz, respectively.
300    
301    checkpoint58u_post
302    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
303    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
304    o testreport: add option "-skipdir" to skip some test.
305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
306      momentum calculation.
307    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
308    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
309      remove checkpoint.F and the_correction_step.F (no longer used);
310      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
311    o add option (linFSConserveTr) to correct for tracer source/sink due to
312      Linear Free surface
313    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
314    o pkg/thsice: fix reading mnc-pickups
315    
316    checkpoint58t_post
317    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
318    o pkg/mdsio:
319     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
320       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
321       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
322     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
323     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
324       either MDS_READ_FIELD or MDS_WRITE_FIELD )
325     - new S/R (to replace MDSWRITEMETA), which allows to write more
326       informations (variable names, time ...) to meta files.
327     - modify rdmds.m to give back the meta file content.
328    o pkg/diagnostics: change vertical interpolation to be safer, and more
329       flexible (define p-levels to interpolate to in data.diagnostics);
330      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
331       diagnostic pointer.
332    o pkg/seaice: more cleaning up of seaice_growth, added many comments
333    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
334    o fix multi-category seaice:
335     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
336       SEAICE_MULTICATEGORY
337     - fix short wave heat flux
338    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
339       and allow to use EVP solver. Change forward lab_sea: test both EVP
340       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
341    o Initial check-in of lab_sea adjoint
342      (very similar to natl_box_adjoint/code_seaice)
343      * used C-grid and EVP solver
344      * used KPP, GM/Redi
345      * uses inAdExact=.TRUE.
346      * gradient checks fail for both ADM and TLM
347        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
348        f.d. gradients actually seem more problematic than ADM, TLM gradients;
349        issue is related to forward mismatch between g77 an ifort
350    o pkg/seaice: overhaul of thermodynamics
351     - growth.F and groatb.F are replaced by new routine seaice_growth.F
352     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
353     - move a few global fields out of SEAICE.h into seaice_growth.F and
354       make them 2D (FICE/QNETO/ ...)
355     - remove FO (it is the same as QNETO)
356     - introduce a few local fields to avoid modifying external fields such
357       as atemp, etc.
358    
359    checkpoint58s_post
360    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
361      changed exf_set_gen.F so that
362        genperiod=0 means input file is one time-constant field and
363        genperiod=-12 means input file contains 12 monthly means
364    o CG2D: use pre-computed solver main-diagonal (stored in common block);
365      this affects truncation error ; generate new output file for exp. which
366      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
367        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
368        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
369        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
370        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
371        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
372    o start implementation of deep-atmosphere and anelastic formulation
373    o verification: remove 2nd copy of input files and use script "prepare_run"
374      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
375    o mom_common/vecinv/fluxform: fix a few initialisation isssues
376    o profiles: fix for multithreaded case
377    
378    o diagnostics: rename few diags:
379      s/'PRESSURE'/'RCENTER '/g
380      s/'TICE    '/'oceFreez'/g
381      s/'TAUX    '/'oceTAUX '/g
382      s/'TAUY    '/'oceTAUY '/g
383      s/'SWFLUX  '/'oceQsw  '/g
384      s/DIFx/DFxE/g
385      s/DIFy/DFyE/g
386      and add few ocean-forcing diagnostics:
387      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
388    o modifications to pkg/seaice/growth.F and budget.F, which change results of
389      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
390      as actual snow thickness.  It now refers everywhere to effective snow
391      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
392    
393    checkpoint58r_post
394    o modifications to pkg/seaice/growth.F, which change results of
395      lab_sea experiment: fixes pertain to melting snow over open water, to
396      masking EVAP under sea ice, and to using the correct AREA variable for
397      computations of EVAP, PRECIP, HSNOW, and GHEFF
398    o add ability to read bathy, salt, and theta using MNC (off by def)
399    o add flooding algorithm and advection of HSNOW for pkg/seaice;
400      both are turned off by default and do no change any results
401    o seaice advection with pkg/thsice: a step toward the use of non-linear
402      advection scheme, but #ifdef or commented out for now (requires more EXCH).
403    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
404      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
405      in natl_box (affects results @ truncation level: update output.txt)
406    o multi-threading and IO:
407      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
408      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
409        (needed to work with SingleCpuIO): tested in all verif. exp.
410    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
411      affects the results (but none of the verification test uses this scheme).
412    o Adding some pkg/diagnostics capability to pkg/seaice
413      (will certainly be subject to changes)
414    o ctrl: adding new control variables:
415      lwflux, lwdown, evap, snowprecip, apressure, runoff
416    
417    checkpoint58q_post
418    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
419      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
420      high_res_cube configuration by 4% on Columbia.
421    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
422      add (in global_with_exf/code) a version of EXF_INTERP_READ without
423      dynamical allocation (seems to work in multi-threaded).
424    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
425      single CPU io) so that TAF does not have to see EESUPPORT.h
426    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
427    
428    checkpoint58p_post
429    o obcs: stop if obcs is used with useCDscheme = .true.
430    o shelfice:
431     - fix a sign error so that no slip at shelfice interface works
432     - remove stop for combination non-hydrostatic code and shelfice. That does
433       not mean, that the results are correct, but at least they are numerically
434       stable
435    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
436    o added adjoint exch routined for all exch*3d* routines
437      and updated flow directives
438    
439    checkpoint58o_post
440    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
441      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
442    o change controling S/R for writing pickup file (new S/R do_write_pickup)
443      and clean-up reading/writing of pickup files.
444    o fix local version of read/write pickup (NH part) in rotating_tank/code
445    o simplify EXCH interface:
446     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
447     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
448    o added the regrid package
449    o shelfice:
450     - add a simple boundary layer scheme to reduce noise
451     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
452    
453    checkpoint58n_post
454    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
455       local variable (not in common block).
456    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
457      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
458      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
459        to work with SingleCpuIO.
460    o add "_d 0" to real constant of pkg/cfc subroutines ;
461       update exp. cfc_exemple & tutorial_cfc_offline output files.
462    o multi-threading and IO:
463      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
464        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
465      - barrier before and after reading.
466      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
467      - avoid using MDS_WRITELOCAL for LAND pkg output.
468      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
469        common-block variables ; Allows multi-threading with master-thread IO.
470    o change default MAX_NO_THREADS from 32 to 4 ;
471      and stop cleanly when MAX_NO_THREADS is too small.
472    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
473    
474    checkpoint58m_post
475    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
476       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
477    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
478       keep global_ocean.90x40x15 (for AD testing) with former secondary test
479       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
480    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
481        add MITgcm_tutorials (= code + all the tutorials)
482    o ecco, option to compute cost for total ssh (mean+anom)
483    o consistent with addition of ptracer and ssh in pkg/profiles
484    o profiles: adding ptracer and ssh
485    o testreport: change multi-test output-file name
486      (from output.txt.{name} to output.{name}.txt)
487    o profiles: now ok for mutli-tiles case
488    o seaice: add 4 parameters for different advection schemes for area,
489      (effective) seaice thickness, enthalphy, and snow height. Their default
490      is the standard parameter SEAICEadvScheme
491    o calc_gw:
492     - add cosFacU in zonal viscous flux (harmonic.visc.).
493     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
494       of tutorial_plume_on_slope.
495    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
496    o calc_gw: true flux-form, account for horizontal grid spacing.
497      update rotating_tank results, but not plume_on_slope (affected at
498      truncation level, 11 digits).
499    
500    checkpoint58l_post
501    o calc_gw:
502     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
503     - remove side-drag for now (need to fix it); update plume_on_slope results.
504     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
505    o commit code to make SST/SSS weights spatially variable
506      (based on either variable in-situ or variable initial T/S weights)
507    o pkg/ecco:
508      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
509        now based on horizontally varying weights wthetaLev, wsaltLev
510      * cost_averagesflags now returns year indices in addition to day, month
511      * sflux balance is performed on annual basis
512        (sflxumm, sfluxmm2, bal_sfluxmm)
513      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
514        including separate counting and multipliers
515    o pkg/rbcs
516      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
517    
518    checkpoint58k_post
519    o testreport:
520     - always build in dir. "build" (if not there, mkdir build instead of building
521       & running in input)
522     - run in dir run (if it exists), in build otherwise.
523     - call prepare_run (if input/prepare_run exists)
524     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
525    o pkg/exf modifications to interpolation and rotation routines for more
526       reasonable treatment of North Pole singularity: for tracers North Pole
527       value is set to northernmost zonal-mean value, for zonal velocity it is
528       set to zero, and for meridional velocity it is set to northernmost value.
529    o pkg/exf/exf_check_range.F
530     - add tile index to diagnostics and move stop statement to the very
531       end of the routine.
532    o pkg/diagnostics: (diagnostics_main_init.F)
533      define title of isomorphic variables according to the current config.
534    o pkg/thsice with pkg/seaice dynamics:
535    - fix domain of computation (interior only, required for exf) and do exchanges
536    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
537    o towards a standard way of dealing with multi-threading in MONITOR
538      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
539    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
540       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
541    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
542    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
543    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
544       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
545    o tracer advection:
546     - clean-up and simplify calc_common_factors.F
547     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
548       advection subroutine (but still not used within DST advection S/R)
549    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
550    
551    checkpoint58j_post
552    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
553      from file (collects calls previously in FORWARD_STEP)
554    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
555    o adjoint store dir. adjusted accordingly
556    o genmake2
557      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
558    
559    checkpoint58i_post
560    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
561      on wind stress (SEAICEstressFactor defaults to 1.)
562    o Total number of Timers is finite (<=40): comment out 2 non-essential one
563      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
564    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
565      on CS-grid: no longer loosing mass.
566    o exf & curvilinear-grid: no longer modify longitude xC & xG.
567    o pkg/ggl90: fix sloppy output and fix a bug
568    o pkg/seaice: added SEAICEuseEVPpickup parameter
569      - Set to false in order to start EVP solver with
570        non-EVP pickup files when using SEAICEuseEVP
571      - fix sign error in diffusion in seaice_calc_rhs
572    
573    checkpoint58h_post
574    * Modifications for bottom topography control
575      o replace hFacC by _hFacC at various places
576      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
577      o add non-self-adjoint cg2d_nsa
578      o update autodiff support routines
579      o re-initialise hfac after ctrl_depth_ini
580      o works for 5x5 box, doesnt work for global_ocean.90x40x15
581    * Adding verification for 5x5 box (4-layer) bottom topography control
582    
583    checkpoint58g_post
584    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
585       used for mean seasonal cycle, mean diurnal cycle); add an example
586       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
587    o pkg/ggl90:
588      - add parameter (minimum surface kinetic energy)
589      - fix bug (avoiding division by zero)
590    o couple pkg/thsice to pkg/seaice:
591      - modify advection in seaice to accomodate new scalar fields to be advected
592      - only muliDimAdection scheme work with seaice/thsice
593      - mapping of thsice-variables to seaice-variables, back and forth
594      - does not break the verification experiments, but does not give the
595        desired results either
596    o pkg/seaice
597      - make (default) second order advection a bit less confusing?
598    
599    checkpoint58f_post
600    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
601      to pkg/seaice):
602      - new routines thsice_map_exf and thsice_get_exf provide the interface
603      - add an additional formal parameter to thsice_solve4temp
604    o pkg/exf:
605      - add new fields wspeed, snowprecip (to be able to couple to thsice)
606      - correct Stefan-Boltzmann constant
607      - new parameter for longwave surface emittance
608      - separate some stuff from exf_bulkformulae into new routines  
609        exf_radiation, exf_wind
610      - add new parameters and constants: longwave emissivity for ocean, ice
611        and snow, evaporation parameters over ice
612      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
613        either wind from stress or stress from wind
614    o pkg/thSIce:
615    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
616    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
617       and THSICE_CALC_THICKN
618    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
619    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
620      to make debugging easier.
621    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
622    o pkg/bulk_force:
623      - clean-up comments and parameters ;
624      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
625    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
626      generate new output for test-experiment: aim.5l_cs.thSI
627    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
628      testreport accordingly
629    
630    checkpoint58e_post
631    o SEAICE_CGRID adjoint done
632    o R_STAR adjoint implemented.
633      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
634      * need to sort out init. of h0facc, etc.
635    o Make pkg/profile fully independent of ecco,cost, etc. stuff
636      to be able to use it in pure forward.
637    
638    checkpoint58d_post
639    o upgrade simple test-experiment to tutorial example:
640     step.1: duplicate the experiment and (step.2) will remove the old copy.
641      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
642      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
643      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
644      tutorial_global_oce_biogeo    <- copy of dic_example
645      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
646      tutorial_plume_on_slope       <- copy of plume_on_slope
647      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
648      tutorial_global_oce_optim     <- empty for now (David ?)
649      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
650     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
651    o correct a sign problem in cost_scat.F
652    o obcs and ptracers: fix boundary conditions for advections schemes
653      with larger stencil
654    o thsice adjoint: start
655    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
656      completeness
657    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
658      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
659    o ptracers adjoint:
660      * avoid extensive recomputatations
661      * fix missing re-init. of gptr (missed by TAF)
662    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
663      me to turn off the excessive output to STDOUT that this package produces
664    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
665      and add those terms in Vector-Invariant formulation.
666    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
667      if the control period (xx_hfluxperiod etc) is 0
668    o in profiles pkg, clean routines and fix details
669    o in ecco pkg, reading ssh data:
670      fix problem in case the model does not start at iter0=0
671    o fix mnc-pickup/restart for ptracers
672    o new package prifiles:
673      code to compute profile-based cost by Gael Forget
674      (modifs in ecco, ctrl, autodiff)
675    o Benign bug fix in initialization (spotted by M. Mazloff) of
676      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
677    
678    checkpoint58c_post
679    o adjoint: finish NLFS adjoint and provide reference output in
680      verification/global_ocean.90x40x15/results_ad_nlfs
681    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
682      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
683      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
684      with SEAICE_CGRID defined.
685    o move calendarDumps from "data" to "data.cal" and clean-up the code
686      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
687    o add useEXF & useCAL flags (for now, set in hard-coded way)
688    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
689      (were missing in NH mode, and wrong in quasihydrostatic mode).
690      waiting for Chris updated version of calc_gw to add those CALLs.
691    o fix bug in quasihydrostatic S/R ;
692      add a test for this option: global_ocean.90x40x15.qshyd
693    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
694      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
695    o add on/off flag useOffLine for package OFFLINE
696    o seaice:
697      - modify advection so that it works also on the C-grid
698      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
699        problem in multi-tile runs with C-grid
700      - add flags for clipping ice velocities and/or masking solver forcing
701      - fix drag (ocean on ice) formulation and a bug that caused noise in the
702        C-grid solver
703      - added a few comments to seaice_diffusion.F
704      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
705        are now exclusive)
706      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
707        required re-ordering the code a little:
708       + make DAIRN global variable (defined in SEAICE)
709       + move computation of the viscosities eta and zeta into a new separate
710         routine (because I need to recompute them in seaice_ocean_stress.F)
711    
712    checkpoint58b_post
713    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
714      update output.txt of exp. aim.5l_cs.thSI
715    o various mnc cleanups and improvements:
716      + shrink lookup tables by factor of ~4
717      + better error reporting when running out of lookup space
718      + able to handle longer path/file names (up to 500 chars)
719    o adjoint:
720      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
721      - TBD: "hidden" mom_vecinv recomp. in dynamics
722    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
723     (allow to differentiate between forcing components using new integer flags:
724      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
725     and add new flag to put Dissipation tendency out of Adams-Bashforth.
726    o ecco
727      - enable trend removal from SSH anomaly obs.
728    o adjoint
729      - a fix for PmEpR when #undef EXACT_CONSERV
730      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
731      - try to fix "hidden" recomp. in forward_step for NLFS
732        (NLFS seems broken sometimes after I checked it in)
733    o seaice:
734     - add c-grid version of the dynamic solver:
735       + three new routines that are the c-grid substitute lsr, dynsolver
736         and ostres
737       + put a few fields that were local to dynsolver into global common
738         blocks, so that I can move the computation of stresses etc into
739         seaice_lsr (saves coding but may break the adjoint).
740     - replace more hardwired parameters by runtime parameters
741     - add ice masks that mask the rhs of the implicit solvers where there
742       is no ice (commented out in seaice_dynsolver, because i am not sure
743       if this works properly), eventually this should replace the clipping
744       of ice velocities in seaice_dynsolver to +/-40cm/s.
745    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
746      include it only where its needed
747    o move balancing of fluxes before the call of external_forcing_surf
748    o seaice:
749      - correct units of turning angles (now they are really in degrees)
750      - move computation of GWATX/Y out of main routine into dynsolver
751      - initialize GWATX/Y in seaice_init
752  o Apply mask on Fresh-Water flux (needed for SSH forcing).  o Apply mask on Fresh-Water flux (needed for SSH forcing).
753    update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)    update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
754  o seaice: add runtime flags for turning angles (default to zero)  o seaice: add runtime flags for turning angles (default to zero)
755  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean  o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
756    and trend from exf forcing and ctrl control adjustments    and trend from exf forcing and ctrl control adjustments

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