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revision 1.722 by jmc, Thu Aug 31 15:33:43 2006 UTC revision 1.828 by jmc, Sun Jun 3 23:32:28 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 add S/R and diagnostics for oceanic mixed-layer depth
8    o move GMRedi call after all vertical mixing schemes (including KPP)
9    o pkg/thsice:
10     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
11      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
12    o pkg/obcs:
13     - bug fix for balance code
14    o pkg/seaice:
15      - allow values of SEAICE_elasticParm > 1
16      - add new parameter SEAICE_evpTauRelax as an alternative
17        to SEAICE_elasticParm
18      - make lsr boundary conditions free slip (by default), changes result
19      - add code for no slip boundary conditions for lsr
20      - set minimum of zeta to zero (and not 4e8) (changes results)
21      - add a cap on AREA after advecting AREA if seaice_growth is not called
22    o change calculation of Visbeck K:
23      - no longer depend on tapering scheme; instead, compute slope (limited
24        by GM_maxSlope). this is equivalent to what was comuted before with
25        clipping or linear tappering.
26      - fix vertical averaging (wrong by 1/2 level)
27      - leave the old version (but will not be maintained) within
28        #ifdef OLD_VISBECK_CALC / #endif
29      - update output of exp. ideal_2D_oce
30    o change error catch in calc_r_star to improve vectorization
31    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
32      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
33    o adjoint:
34      Re-organized adjoint checkpointing according to Matt Mazloff
35      (but with modifs/completions/cleanups)
36      Storing is now bundled into large arrays to optimized I/O
37      (and second step in cleanup of the_main_loop)
38    
39    checkpoint59b
40    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
41      - export/import (between ocean & coupler) fields needed for ocean DIC.
42    o pkg/seaice:
43      - get rid of three more exchanges seaice_calc_viscosities (required
44        different loop boundaries in seaice_lsr and seaice_ocean_stress)
45      - bug fix in seaice_ocean_stress (update of lab_sea required)
46      - reduce loop boundaries to necessary minimum also in seaice_evp
47      - go back to the old way of computing deltaC/Z as the adjoint likes that
48        better
49    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
50      passive tracer to an Age Tracer) + update output.txt
51    o pkg/exf:
52      - implement A-grid / C-grid selection for wind-stress input files.
53      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
54      for now, in exf_bulk_largeyeager04.F only :
55      - change implementation for case where windspeed + 2. components wind-stress
56        are read-in. AND use rhoConstFresh to convert evap.
57    o pkg/seaice:
58      - use correct EXCH_UV for wind-forcing (on A-grid).
59      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
60        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
61    o pkg/exf:
62      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
63      EXF_INTERPOLATION:
64      - merge global_with_exf/code version of exf_interp_read.F
65        to the main code ;
66      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
67        reading the file ; Important: This options needs to be defined to recover
68        previous code.
69        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
70      - no longer loose real*8 precision along the way when using exf_iprec=64.
71    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
72      - change discretisation of evp-solver in order to avoid another exchange
73        (changes lab_sea) and clean up a little
74      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
75        help the adjoint (this also changes the results slightly)
76      - add a few "_d 0" where they had been missing in seaice_evp.F
77      - cleaning up: remove unused seaice_calc_rhs.F
78    o pkg/exf: some cleaning-up:
79      - change various "constants" into runtime parameters
80      - cleaned-up Large&Yeager04 routine which should eventually
81        replace exf_bulkformulae.F (changed names of S/R and CPP)
82        and merged various ALLOW_ATM_WIND options
83     only used with thsice pkg (in thsice_get_exf.F):
84      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
85        which are used when useStabilityFct_overIce=TRUE (= the default)
86      - change default values of ice & snow emissivity and scale downward LW
87        by ice & snow emissivity.
88    o pkg/thsice:
89     fix few little problems, in thsice_calc_thickn.F:
90      - growth vertically (and not laterally) if iceFrac == iceMaskMax
91      - melt only laterally if hIce < hThinIce (as the comments say)
92      and in thsice_extend.F:
93      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
94      - start to form ice as soon as the minimum ice-volume is reachable.
95     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
96      and cpl_aim+ocn
97    o pkg/kpp
98     - move computation of surface related input fields to KPP into a new
99       subroutine kpp_forcing_surf.F
100     - remove wrong (within bi,bj loops) EXCH calls.
101     - little cleaning (add argument myThid in last position, cvs header ...)
102     - for now, fix conservation problem by exchanging KPPviscAz (may not
103       be the best fix)
104    o pkg/seaice
105     - check for inconsistent evp parameter/cpp-flag combination
106     - remove leftover errIO flat for obsolete name list error handling
107    o OpenAD
108     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
109    
110    checkpoint59a
111    o pkg/seaice: some parameter clarifications and a little bit of clean up
112    o pkg/thsice: rename run-time parameters:
113       himin       -> hIceMin
114       himin0      -> hThinIce
115       hihig       -> hThickIce
116       i0          -> i0swFrac
117       transCoef   -> bMeltCoef
118       frac_energy -> fracMelting
119      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
120       with default values (for now) that do not change the results.
121      remove old version of thsice vars advection in pkg/seaice.
122    o in FFIELDS.h:
123      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
124      - make pLoad & sIceLoad always available (but still only used if
125         ATMOSPHERIC_LOADING is #define).
126    o pkg/kpp: replaced _KPP_RL with _RL
127    o bug fixes for vertical diffusivity computations when both KPP and
128        3D diffusivity arrays are used.
129    o pkg/seaice: fix bug in evp solver, while doing that
130      - change (improve?) discretization of stress computations for both
131        cgrid-lsr and evp solver
132      - add a new routine to compute strain rates
133      - the above changes lab_sea results
134      - add no slip conditions for evp solver (off by default), lsr-version
135        may follow
136      - fix exchange for shear at Z-points (does not change lab_sea)
137      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
138        (to force the user to pick a time step since there is not "safe" way
139        of choosing it)
140      - add principal stress diagnostics
141      - rearrange fields for evp a little to avoid having to call a: too many
142        exchanges and b: exchanges for stress trensor components which we do
143        not have.
144      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
145        of evp, complete rewrite for lsr case (latter is does not yet work
146        in all cases)
147    o pkg/kpp: add code to have mixing in shelf ice caverns
148      - add myThid to all kpp routines (long overdue)
149    
150    checkpoint59
151    o pkg/exf:
152      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
153        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
154      - move exf header files from lower_case.h to UPPER_CASE.h ;
155        add missing cvs Header & Name
156      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
157      - add namelist param. selectStressGridPosition, exf_monFreq
158      - retire many _CLIM routines, and remove data.exf_clim
159        + params moved to data.exf
160        + climsst, climsss now handled by exf_set_gen, i.e.
161          climss?period=0 refers to constant field,
162          climss?period=-12 to monthly forcing
163      - split up namelists in data.exf
164    o pkg/seaice:
165      - remove seaice_exch and seaice_exch_uv
166      - remove superfluous exchange of theta
167      - add myThid to seaice_budget_ocean/ice
168      - add new interface for atmospheric wind forcing (C-grid only)
169        + new routine
170        + two new field (taux, tauy for stress over ice)
171        + removed one global field (DAIRN) for C-grid case only
172    o pkg/thsise
173      - 2nd set of modifs for thsice adjoint in conjunction with exf
174    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
175    
176    checkpoint58y_post
177    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
178      vertical diffusivity, similar to that in MOM4; turned on using
179      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
180      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
181    o Added capability for 3D specification of background vertical diffusion
182      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
183      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
184      "data" file that contains the 3D vertical diffusivity coefficients.
185    o ice dynamics (pkg/seaice) with thsice thermodynamics:
186      - add code within pkg thsice to advect & diffuse sea-ice fields
187      similar to (and will replace) what has been added in  seaice_advdiff.F,
188      but: - conserving Mass, Heat & Salt.
189           - better when using non-linear advection scheme (not yet fully tested)
190           - can also be used in atmospheric set-up (for now, only the diffusion).
191    
192    checkpoint58x_post
193    o IO option for global-file compact format:
194      - add options when generating topology (utils/exch2/matlab-topology-generator)
195      - add I/O capability (pkg/mdsio).
196      - adapt utils/matlab/rdmds.m to read this format.
197      for now long-line format not yet supported by pkg/mdsio (& exch2).
198    o shelfice: add a few diagnostics
199    
200    checkpoint58w_post
201    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
202      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
203      (and replace horiVertRatio in NH code).
204      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
205                         and tutorial_plume_on_slope (sensitive to truncation)
206    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
207      directly to drive seaice model (C-grid only)
208    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
209     - reintroduce computation of wind from stress,
210     - compute tau (in exf_bulkformulae.F) from windstress averaged to
211       mass points to avoid tau = 0
212     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
213    o rdmnc.m: make it work with "global" files created with gluemnc
214    o rdmnc.m : some improvements in dealing with singleton dimension
215      (tested on all testreport mnc output files).
216    o genmake2: disable pkg/profiles if netcdf test fails.
217    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
218    o move call to cal_readparms up to make calendar parameters/variable available
219      to all packages
220    
221    checkpoint58v_post
222    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
223      useDynP_inEos_Zc tested.
224    o pkg/exf: changes to properly interpolate/mask/scale initial fields
225    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
226      and portions thereof.  See read_cs.txt for description and examples.
227    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
228      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
229      following the great-circle arc between those 2 points.
230    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
231      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
232    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
233     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
234     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
235     - still needs work (not working with some options ; efficiency to improve)
236       and serious testing.
237     - use this scheme for temperature & salinity in 2 advection test exp.:
238       advect_xy & advect_xz, respectively.
239    
240    checkpoint58u_post
241    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
242    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
243    o testreport: add option "-skipdir" to skip some test.
244    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
245      momentum calculation.
246    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
247    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
248      remove checkpoint.F and the_correction_step.F (no longer used);
249      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
250    o add option (linFSConserveTr) to correct for tracer source/sink due to
251      Linear Free surface
252    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
253    o pkg/thsice: fix reading mnc-pickups
254    
255    checkpoint58t_post
256    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
257    o pkg/mdsio:
258     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
259       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
260       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
261     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
262     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
263       either MDS_READ_FIELD or MDS_WRITE_FIELD )
264     - new S/R (to replace MDSWRITEMETA), which allows to write more
265       informations (variable names, time ...) to meta files.
266     - modify rdmds.m to give back the meta file content.
267    o pkg/diagnostics: change vertical interpolation to be safer, and more
268       flexible (define p-levels to interpolate to in data.diagnostics);
269      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
270       diagnostic pointer.
271    o pkg/seaice: more cleaning up of seaice_growth, added many comments
272    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
273    o fix multi-category seaice:
274     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
275       SEAICE_MULTICATEGORY
276     - fix short wave heat flux
277    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
278       and allow to use EVP solver. Change forward lab_sea: test both EVP
279       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
280    o Initial check-in of lab_sea adjoint
281      (very similar to natl_box_adjoint/code_seaice)
282      * used C-grid and EVP solver
283      * used KPP, GM/Redi
284      * uses inAdExact=.TRUE.
285      * gradient checks fail for both ADM and TLM
286        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
287        f.d. gradients actually seem more problematic than ADM, TLM gradients;
288        issue is related to forward mismatch between g77 an ifort
289    o pkg/seaice: overhaul of thermodynamics
290     - growth.F and groatb.F are replaced by new routine seaice_growth.F
291     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
292     - move a few global fields out of SEAICE.h into seaice_growth.F and
293       make them 2D (FICE/QNETO/ ...)
294     - remove FO (it is the same as QNETO)
295     - introduce a few local fields to avoid modifying external fields such
296       as atemp, etc.
297    
298    checkpoint58s_post
299    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
300      changed exf_set_gen.F so that
301        genperiod=0 means input file is one time-constant field and
302        genperiod=-12 means input file contains 12 monthly means
303    o CG2D: use pre-computed solver main-diagonal (stored in common block);
304      this affects truncation error ; generate new output file for exp. which
305      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
306        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
307        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
308        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
309        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
310        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
311    o start implementation of deep-atmosphere and anelastic formulation
312    o verification: remove 2nd copy of input files and use script "prepare_run"
313      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
314    o mom_common/vecinv/fluxform: fix a few initialisation isssues
315    o profiles: fix for multithreaded case
316    
317    o diagnostics: rename few diags:
318      s/'PRESSURE'/'RCENTER '/g
319      s/'TICE    '/'oceFreez'/g
320      s/'TAUX    '/'oceTAUX '/g
321      s/'TAUY    '/'oceTAUY '/g
322      s/'SWFLUX  '/'oceQsw  '/g
323      s/DIFx/DFxE/g
324      s/DIFy/DFyE/g
325      and add few ocean-forcing diagnostics:
326      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
327    o modifications to pkg/seaice/growth.F and budget.F, which change results of
328      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
329      as actual snow thickness.  It now refers everywhere to effective snow
330      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
331    
332    checkpoint58r_post
333    o modifications to pkg/seaice/growth.F, which change results of
334      lab_sea experiment: fixes pertain to melting snow over open water, to
335      masking EVAP under sea ice, and to using the correct AREA variable for
336      computations of EVAP, PRECIP, HSNOW, and GHEFF
337    o add ability to read bathy, salt, and theta using MNC (off by def)
338    o add flooding algorithm and advection of HSNOW for pkg/seaice;
339      both are turned off by default and do no change any results
340    o seaice advection with pkg/thsice: a step toward the use of non-linear
341      advection scheme, but #ifdef or commented out for now (requires more EXCH).
342    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
343      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
344      in natl_box (affects results @ truncation level: update output.txt)
345    o multi-threading and IO:
346      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
347      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
348        (needed to work with SingleCpuIO): tested in all verif. exp.
349    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
350      affects the results (but none of the verification test uses this scheme).
351    o Adding some pkg/diagnostics capability to pkg/seaice
352      (will certainly be subject to changes)
353    o ctrl: adding new control variables:
354      lwflux, lwdown, evap, snowprecip, apressure, runoff
355    
356    checkpoint58q_post
357    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
358      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
359      high_res_cube configuration by 4% on Columbia.
360    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
361      add (in global_with_exf/code) a version of EXF_INTERP_READ without
362      dynamical allocation (seems to work in multi-threaded).
363    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
364      single CPU io) so that TAF does not have to see EESUPPORT.h
365    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
366    
367    checkpoint58p_post
368    o obcs: stop if obcs is used with useCDscheme = .true.
369    o shelfice:
370     - fix a sign error so that no slip at shelfice interface works
371     - remove stop for combination non-hydrostatic code and shelfice. That does
372       not mean, that the results are correct, but at least they are numerically
373       stable
374  o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)  o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
375    o added adjoint exch routined for all exch*3d* routines
376      and updated flow directives
377    
378  checkpoint58o_post  checkpoint58o_post
379  o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;  o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;

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