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revision 1.703 by gforget, Fri Jul 14 22:14:28 2006 UTC revision 1.821 by jmc, Thu May 24 23:10:12 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 change calculation of Visbeck K:
8      - no longer depend on tapering scheme; instead, compute slope (limited
9        by GM_maxSlope). this is equivalent to what was comuted before with
10        clipping or linear tappering.
11      - fix vertical averaging (wrong by 1 level)
12      - leave the old version (but will not be maintained) within
13        #ifdef OLD_VISBECK_CALC / #endif
14    o change error catch in calc_r_star to improve vectorization
15    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
16      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
17    
18    checkpoint59b
19    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
20      - export/import (between ocean & coupler) fields needed for ocean DIC.
21    o pkg/seaice:
22      - get rid of three more exchanges seaice_calc_viscosities (required
23        different loop boundaries in seaice_lsr and seaice_ocean_stress)
24      - bug fix in seaice_ocean_stress (update of lab_sea required)
25      - reduce loop boundaries to necessary minimum also in seaice_evp
26      - go back to the old way of computing deltaC/Z as the adjoint likes that
27        better
28    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
29      passive tracer to an Age Tracer) + update output.txt
30    o pkg/exf:
31      - implement A-grid / C-grid selection for wind-stress input files.
32      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
33      for now, in exf_bulk_largeyeager04.F only :
34      - change implementation for case where windspeed + 2. components wind-stress
35        are read-in. AND use rhoConstFresh to convert evap.
36    o pkg/seaice:
37      - use correct EXCH_UV for wind-forcing (on A-grid).
38      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
39        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
40    o pkg/exf:
41      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
42      EXF_INTERPOLATION:
43      - merge global_with_exf/code version of exf_interp_read.F
44        to the main code ;
45      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
46        reading the file ; Important: This options needs to be defined to recover
47        previous code.
48        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
49      - no longer loose real*8 precision along the way when using exf_iprec=64.
50    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
51      - change discretisation of evp-solver in order to avoid another exchange
52        (changes lab_sea) and clean up a little
53      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
54        help the adjoint (this also changes the results slightly)
55      - add a few "_d 0" where they had been missing in seaice_evp.F
56      - cleaning up: remove unused seaice_calc_rhs.F
57    o pkg/exf: some cleaning-up:
58      - change various "constants" into runtime parameters
59      - cleaned-up Large&Yeager04 routine which should eventually
60        replace exf_bulkformulae.F (changed names of S/R and CPP)
61        and merged various ALLOW_ATM_WIND options
62     only used with thsice pkg (in thsice_get_exf.F):
63      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
64        which are used when useStabilityFct_overIce=TRUE (= the default)
65      - change default values of ice & snow emissivity and scale downward LW
66        by ice & snow emissivity.
67    o pkg/thsice:
68     fix few little problems, in thsice_calc_thickn.F:
69      - growth vertically (and not laterally) if iceFrac == iceMaskMax
70      - melt laterally only if hIce < hThinIce (as the comments say)
71      and in thsice_extend.F:
72      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
73      - start to form ice as soon as the minimum ice-volume is reachable.
74     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
75      and cpl_aim+ocn
76    o pkg/kpp
77     - move computation of surface related input fields to KPP into a new
78       subroutine kpp_forcing_surf.F
79     - remove wrong (within bi,bj loops) EXCH calls.
80     - little cleaning (add argument myThid in last position, cvs header ...)
81     - for now, fix conservation problem by exchanging KPPviscAz (may not
82       be the best fix)
83    o pkg/seaice
84     - check for inconsistent evp parameter/cpp-flag combination
85     - remove leftover errIO flat for obsolete name list error handling
86    o OpenAD
87     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
88    
89    checkpoint59a
90    o pkg/seaice: some parameter clarifications and a little bit of clean up
91    o pkg/thsice: rename run-time parameters:
92       himin       -> hIceMin
93       himin0      -> hThinIce
94       hihig       -> hThickIce
95       i0          -> i0swFrac
96       transCoef   -> bMeltCoef
97       frac_energy -> fracMelting
98      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
99       with default values (for now) that do not change the results.
100      remove old version of thsice vars advection in pkg/seaice.
101    o in FFIELDS.h:
102      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
103      - make pLoad & sIceLoad always available (but still only used if
104         ATMOSPHERIC_LOADING is #define).
105    o pkg/kpp: replaced _KPP_RL with _RL
106    o bug fixes for vertical diffusivity computations when both KPP and
107        3D diffusivity arrays are used.
108    o pkg/seaice: fix bug in evp solver, while doing that
109      - change (improve?) discretization of stress computations for both
110        cgrid-lsr and evp solver
111      - add a new routine to compute strain rates
112      - the above changes lab_sea results
113      - add no slip conditions for evp solver (off by default), lsr-version
114        may follow
115      - fix exchange for shear at Z-points (does not change lab_sea)
116      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
117        (to force the user to pick a time step since there is not "safe" way
118        of choosing it)
119      - add principal stress diagnostics
120      - rearrange fields for evp a little to avoid having to call a: too many
121        exchanges and b: exchanges for stress trensor components which we do
122        not have.
123      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
124        of evp, complete rewrite for lsr case (latter is does not yet work
125        in all cases)
126    o pkg/kpp: add code to have mixing in shelf ice caverns
127      - add myThid to all kpp routines (long overdue)
128    
129    checkpoint59
130    o pkg/exf:
131      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
132        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
133      - move exf header files from lower_case.h to UPPER_CASE.h ;
134        add missing cvs Header & Name
135      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
136      - add namelist param. selectStressGridPosition, exf_monFreq
137      - retire many _CLIM routines, and remove data.exf_clim
138        + params moved to data.exf
139        + climsst, climsss now handled by exf_set_gen, i.e.
140          climss?period=0 refers to constant field,
141          climss?period=-12 to monthly forcing
142      - split up namelists in data.exf
143    o pkg/seaice:
144      - remove seaice_exch and seaice_exch_uv
145      - remove superfluous exchange of theta
146      - add myThid to seaice_budget_ocean/ice
147      - add new interface for atmospheric wind forcing (C-grid only)
148        + new routine
149        + two new field (taux, tauy for stress over ice)
150        + removed one global field (DAIRN) for C-grid case only
151    o pkg/thsise
152      - 2nd set of modifs for thsice adjoint in conjunction with exf
153    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
154    
155    checkpoint58y_post
156    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
157      vertical diffusivity, similar to that in MOM4; turned on using
158      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
159      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
160    o Added capability for 3D specification of background vertical diffusion
161      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
162      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
163      "data" file that contains the 3D vertical diffusivity coefficients.
164    o ice dynamics (pkg/seaice) with thsice thermodynamics:
165      - add code within pkg thsice to advect & diffuse sea-ice fields
166      similar to (and will replace) what has been added in  seaice_advdiff.F,
167      but: - conserving Mass, Heat & Salt.
168           - better when using non-linear advection scheme (not yet fully tested)
169           - can also be used in atmospheric set-up (for now, only the diffusion).
170    
171    checkpoint58x_post
172    o IO option for global-file compact format:
173      - add options when generating topology (utils/exch2/matlab-topology-generator)
174      - add I/O capability (pkg/mdsio).
175      - adapt utils/matlab/rdmds.m to read this format.
176      for now long-line format not yet supported by pkg/mdsio (& exch2).
177    o shelfice: add a few diagnostics
178    
179    checkpoint58w_post
180    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
181      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
182      (and replace horiVertRatio in NH code).
183      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
184                         and tutorial_plume_on_slope (sensitive to truncation)
185    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
186      directly to drive seaice model (C-grid only)
187    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
188     - reintroduce computation of wind from stress,
189     - compute tau (in exf_bulkformulae.F) from windstress averaged to
190       mass points to avoid tau = 0
191     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
192    o rdmnc.m: make it work with "global" files created with gluemnc
193    o rdmnc.m : some improvements in dealing with singleton dimension
194      (tested on all testreport mnc output files).
195    o genmake2: disable pkg/profiles if netcdf test fails.
196    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
197    o move call to cal_readparms up to make calendar parameters/variable available
198      to all packages
199    
200    checkpoint58v_post
201    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
202      useDynP_inEos_Zc tested.
203    o pkg/exf: changes to properly interpolate/mask/scale initial fields
204    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
205      and portions thereof.  See read_cs.txt for description and examples.
206    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
207      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
208      following the great-circle arc between those 2 points.
209    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
210      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
211    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
212     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
213     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
214     - still needs work (not working with some options ; efficiency to improve)
215       and serious testing.
216     - use this scheme for temperature & salinity in 2 advection test exp.:
217       advect_xy & advect_xz, respectively.
218    
219    checkpoint58u_post
220    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
221    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
222    o testreport: add option "-skipdir" to skip some test.
223    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
224      momentum calculation.
225    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
226    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
227      remove checkpoint.F and the_correction_step.F (no longer used);
228      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
229    o add option (linFSConserveTr) to correct for tracer source/sink due to
230      Linear Free surface
231    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
232    o pkg/thsice: fix reading mnc-pickups
233    
234    checkpoint58t_post
235    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
236    o pkg/mdsio:
237     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
238       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
239       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
240     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
241     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
242       either MDS_READ_FIELD or MDS_WRITE_FIELD )
243     - new S/R (to replace MDSWRITEMETA), which allows to write more
244       informations (variable names, time ...) to meta files.
245     - modify rdmds.m to give back the meta file content.
246    o pkg/diagnostics: change vertical interpolation to be safer, and more
247       flexible (define p-levels to interpolate to in data.diagnostics);
248      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
249       diagnostic pointer.
250    o pkg/seaice: more cleaning up of seaice_growth, added many comments
251    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
252    o fix multi-category seaice:
253     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
254       SEAICE_MULTICATEGORY
255     - fix short wave heat flux
256    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
257       and allow to use EVP solver. Change forward lab_sea: test both EVP
258       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
259    o Initial check-in of lab_sea adjoint
260      (very similar to natl_box_adjoint/code_seaice)
261      * used C-grid and EVP solver
262      * used KPP, GM/Redi
263      * uses inAdExact=.TRUE.
264      * gradient checks fail for both ADM and TLM
265        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
266        f.d. gradients actually seem more problematic than ADM, TLM gradients;
267        issue is related to forward mismatch between g77 an ifort
268    o pkg/seaice: overhaul of thermodynamics
269     - growth.F and groatb.F are replaced by new routine seaice_growth.F
270     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
271     - move a few global fields out of SEAICE.h into seaice_growth.F and
272       make them 2D (FICE/QNETO/ ...)
273     - remove FO (it is the same as QNETO)
274     - introduce a few local fields to avoid modifying external fields such
275       as atemp, etc.
276    
277    checkpoint58s_post
278    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
279      changed exf_set_gen.F so that
280        genperiod=0 means input file is one time-constant field and
281        genperiod=-12 means input file contains 12 monthly means
282    o CG2D: use pre-computed solver main-diagonal (stored in common block);
283      this affects truncation error ; generate new output file for exp. which
284      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
285        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
286        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
287        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
288        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
289        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
290    o start implementation of deep-atmosphere and anelastic formulation
291    o verification: remove 2nd copy of input files and use script "prepare_run"
292      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
293    o mom_common/vecinv/fluxform: fix a few initialisation isssues
294    o profiles: fix for multithreaded case
295    
296    o diagnostics: rename few diags:
297      s/'PRESSURE'/'RCENTER '/g
298      s/'TICE    '/'oceFreez'/g
299      s/'TAUX    '/'oceTAUX '/g
300      s/'TAUY    '/'oceTAUY '/g
301      s/'SWFLUX  '/'oceQsw  '/g
302      s/DIFx/DFxE/g
303      s/DIFy/DFyE/g
304      and add few ocean-forcing diagnostics:
305      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
306    o modifications to pkg/seaice/growth.F and budget.F, which change results of
307      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
308      as actual snow thickness.  It now refers everywhere to effective snow
309      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
310    
311    checkpoint58r_post
312    o modifications to pkg/seaice/growth.F, which change results of
313      lab_sea experiment: fixes pertain to melting snow over open water, to
314      masking EVAP under sea ice, and to using the correct AREA variable for
315      computations of EVAP, PRECIP, HSNOW, and GHEFF
316    o add ability to read bathy, salt, and theta using MNC (off by def)
317    o add flooding algorithm and advection of HSNOW for pkg/seaice;
318      both are turned off by default and do no change any results
319    o seaice advection with pkg/thsice: a step toward the use of non-linear
320      advection scheme, but #ifdef or commented out for now (requires more EXCH).
321    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
322      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
323      in natl_box (affects results @ truncation level: update output.txt)
324    o multi-threading and IO:
325      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
326      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
327        (needed to work with SingleCpuIO): tested in all verif. exp.
328    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
329      affects the results (but none of the verification test uses this scheme).
330    o Adding some pkg/diagnostics capability to pkg/seaice
331      (will certainly be subject to changes)
332    o ctrl: adding new control variables:
333      lwflux, lwdown, evap, snowprecip, apressure, runoff
334    
335    checkpoint58q_post
336    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
337      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
338      high_res_cube configuration by 4% on Columbia.
339    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
340      add (in global_with_exf/code) a version of EXF_INTERP_READ without
341      dynamical allocation (seems to work in multi-threaded).
342    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
343      single CPU io) so that TAF does not have to see EESUPPORT.h
344    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
345    
346    checkpoint58p_post
347    o obcs: stop if obcs is used with useCDscheme = .true.
348    o shelfice:
349     - fix a sign error so that no slip at shelfice interface works
350     - remove stop for combination non-hydrostatic code and shelfice. That does
351       not mean, that the results are correct, but at least they are numerically
352       stable
353    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
354    o added adjoint exch routined for all exch*3d* routines
355      and updated flow directives
356    
357    checkpoint58o_post
358    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
359      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
360    o change controling S/R for writing pickup file (new S/R do_write_pickup)
361      and clean-up reading/writing of pickup files.
362    o fix local version of read/write pickup (NH part) in rotating_tank/code
363    o simplify EXCH interface:
364     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
365     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
366    o added the regrid package
367    o shelfice:
368     - add a simple boundary layer scheme to reduce noise
369     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
370    
371    checkpoint58n_post
372    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
373       local variable (not in common block).
374    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
375      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
376      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
377        to work with SingleCpuIO.
378    o add "_d 0" to real constant of pkg/cfc subroutines ;
379       update exp. cfc_exemple & tutorial_cfc_offline output files.
380    o multi-threading and IO:
381      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
382        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
383      - barrier before and after reading.
384      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
385      - avoid using MDS_WRITELOCAL for LAND pkg output.
386      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
387        common-block variables ; Allows multi-threading with master-thread IO.
388    o change default MAX_NO_THREADS from 32 to 4 ;
389      and stop cleanly when MAX_NO_THREADS is too small.
390    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
391    
392    checkpoint58m_post
393    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
394       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
395    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
396       keep global_ocean.90x40x15 (for AD testing) with former secondary test
397       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
398    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
399        add MITgcm_tutorials (= code + all the tutorials)
400    o ecco, option to compute cost for total ssh (mean+anom)
401    o consistent with addition of ptracer and ssh in pkg/profiles
402  o profiles: adding ptracer and ssh  o profiles: adding ptracer and ssh
403  o testreport: change multi-test output-file name  o testreport: change multi-test output-file name
404    (from output.txt.{name} to output.{name}.txt)    (from output.txt.{name} to output.{name}.txt)
405  o profiles: now ok for mutli-threaded case  o profiles: now ok for mutli-tiles case
406  o seaice: add 4 parameters for different advection schemes for area,  o seaice: add 4 parameters for different advection schemes for area,
407    (effective) seaice thickness, enthalphy, and snow height. Their default    (effective) seaice thickness, enthalphy, and snow height. Their default
408    is the standard parameter SEAICEadvScheme    is the standard parameter SEAICEadvScheme

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