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revision 1.749 by mlosch, Thu Nov 23 10:03:44 2006 UTC revision 1.815 by jmc, Mon May 14 20:44:45 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      - implement A-grid / C-grid selection for wind-stress input files.
9      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
10      for now, in exf_bulk_largeyeager04.F only :
11      - change implementation for case where windspeed + 2. components wind-stress
12        are read-in. AND use rhoConstFresh to convert evap.
13    o pkg/seaice:
14      - use correct EXCH_UV for wind-forcing (on A-grid).
15      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
16        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
17    o pkg/exf:
18      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
19      EXF_INTERPOLATION:
20      - merge global_with_exf/code version of exf_interp_read.F
21        to the main code ;
22      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
23        reading the file ; Important: This options needs to be defined to recover
24        previous code.
25        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
26      - no longer loose real*8 precision along the way when using exf_iprec=64.
27    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
28      - change discretisation of evp-solver in order to avoid another exchange
29        (changes lab_sea) and clean up a little
30      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
31        help the adjoint (this also changes the results slightly)
32      - add a few "_d 0" where they had been missing in seaice_evp.F
33      - cleaning up: remove unused seaice_calc_rhs.F
34    o pkg/exf: some cleaning-up:
35      - change various "constants" into runtime parameters
36      - cleaned-up Large&Yeager04 routine which should eventually
37        replace exf_bulkformulae.F (changed names of S/R and CPP)
38        and merged various ALLOW_ATM_WIND options
39     only used with thsice pkg (in thsice_get_exf.F):
40      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
41        which are used when useStabilityFct_overIce=TRUE (= the default)
42      - change default values of ice & snow emissivity and scale downward LW
43        by ice & snow emissivity.
44    o pkg/thsice:
45     fix few little problems, in thsice_calc_thickn.F:
46      - growth vertically (and not laterally) if iceFrac == iceMaskMax
47      - melt laterally only if hIce < hThinIce (as the comments say)
48      and in thsice_extend.F:
49      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
50      - start to form ice as soon as the minimum ice-volume is reachable.
51     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
52      and cpl_aim+ocn
53    o pkg/kpp
54     - move computation of surface related input fields to KPP into a new
55       subroutine kpp_forcing_surf.F
56     - remove wrong (within bi,bj loops) EXCH calls.
57     - little cleaning (add argument myThid in last position, cvs header ...)
58     - for now, fix conservation problem by exchanging KPPviscAz (may not
59       be the best fix)
60    o pkg/seaice
61     - check for inconsistent evp parameter/cpp-flag combination
62     - remove leftover errIO flat for obsolete name list error handling
63    o OpenAD
64     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
65    
66    checkpoint59a
67    o pkg/seaice: some parameter clarifications and a little bit of clean up
68    o pkg/thsice: rename run-time parameters:
69       himin       -> hIceMin
70       himin0      -> hThinIce
71       hihig       -> hThickIce
72       i0          -> i0swFrac
73       transCoef   -> bMeltCoef
74       frac_energy -> fracMelting
75      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
76       with default values (for now) that do not change the results.
77      remove old version of thsice vars advection in pkg/seaice.
78    o in FFIELDS.h:
79      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
80      - make pLoad & sIceLoad always available (but still only used if
81         ATMOSPHERIC_LOADING is #define).
82    o pkg/kpp: replaced _KPP_RL with _RL
83    o bug fixes for vertical diffusivity computations when both KPP and
84        3D diffusivity arrays are used.
85    o pkg/seaice: fix bug in evp solver, while doing that
86      - change (improve?) discretization of stress computations for both
87        cgrid-lsr and evp solver
88      - add a new routine to compute strain rates
89      - the above changes lab_sea results
90      - add no slip conditions for evp solver (off by default), lsr-version
91        may follow
92      - fix exchange for shear at Z-points (does not change lab_sea)
93      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
94        (to force the user to pick a time step since there is not "safe" way
95        of choosing it)
96      - add principal stress diagnostics
97      - rearrange fields for evp a little to avoid having to call a: too many
98        exchanges and b: exchanges for stress trensor components which we do
99        not have.
100      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
101        of evp, complete rewrite for lsr case (latter is does not yet work
102        in all cases)
103    o pkg/kpp: add code to have mixing in shelf ice caverns
104      - add myThid to all kpp routines (long overdue)
105    
106    checkpoint59
107    o pkg/exf:
108      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
109        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
110      - move exf header files from lower_case.h to UPPER_CASE.h ;
111        add missing cvs Header & Name
112      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
113      - add namelist param. selectStressGridPosition, exf_monFreq
114      - retire many _CLIM routines, and remove data.exf_clim
115        + params moved to data.exf
116        + climsst, climsss now handled by exf_set_gen, i.e.
117          climss?period=0 refers to constant field,
118          climss?period=-12 to monthly forcing
119      - split up namelists in data.exf
120    o pkg/seaice:
121      - remove seaice_exch and seaice_exch_uv
122      - remove superfluous exchange of theta
123      - add myThid to seaice_budget_ocean/ice
124      - add new interface for atmospheric wind forcing (C-grid only)
125        + new routine
126        + two new field (taux, tauy for stress over ice)
127        + removed one global field (DAIRN) for C-grid case only
128    o pkg/thsise
129      - 2nd set of modifs for thsice adjoint in conjunction with exf
130    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
131    
132    checkpoint58y_post
133    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
134      vertical diffusivity, similar to that in MOM4; turned on using
135      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
136      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
137    o Added capability for 3D specification of background vertical diffusion
138      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
139      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
140      "data" file that contains the 3D vertical diffusivity coefficients.
141    o ice dynamics (pkg/seaice) with thsice thermodynamics:
142      - add code within pkg thsice to advect & diffuse sea-ice fields
143      similar to (and will replace) what has been added in  seaice_advdiff.F,
144      but: - conserving Mass, Heat & Salt.
145           - better when using non-linear advection scheme (not yet fully tested)
146           - can also be used in atmospheric set-up (for now, only the diffusion).
147    
148    checkpoint58x_post
149    o IO option for global-file compact format:
150      - add options when generating topology (utils/exch2/matlab-topology-generator)
151      - add I/O capability (pkg/mdsio).
152      - adapt utils/matlab/rdmds.m to read this format.
153      for now long-line format not yet supported by pkg/mdsio (& exch2).
154    o shelfice: add a few diagnostics
155    
156    checkpoint58w_post
157    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
158      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
159      (and replace horiVertRatio in NH code).
160      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
161                         and tutorial_plume_on_slope (sensitive to truncation)
162    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
163      directly to drive seaice model (C-grid only)
164    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
165     - reintroduce computation of wind from stress,
166     - compute tau (in exf_bulkformulae.F) from windstress averaged to
167       mass points to avoid tau = 0
168     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
169    o rdmnc.m: make it work with "global" files created with gluemnc
170    o rdmnc.m : some improvements in dealing with singleton dimension
171      (tested on all testreport mnc output files).
172    o genmake2: disable pkg/profiles if netcdf test fails.
173    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
174    o move call to cal_readparms up to make calendar parameters/variable available
175      to all packages
176    
177    checkpoint58v_post
178    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
179      useDynP_inEos_Zc tested.
180    o pkg/exf: changes to properly interpolate/mask/scale initial fields
181    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
182      and portions thereof.  See read_cs.txt for description and examples.
183    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
184      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
185      following the great-circle arc between those 2 points.
186    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
187      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
188    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
189     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
190     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
191     - still needs work (not working with some options ; efficiency to improve)
192       and serious testing.
193     - use this scheme for temperature & salinity in 2 advection test exp.:
194       advect_xy & advect_xz, respectively.
195    
196    checkpoint58u_post
197    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
198    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
199    o testreport: add option "-skipdir" to skip some test.
200    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
201      momentum calculation.
202    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
203    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
204      remove checkpoint.F and the_correction_step.F (no longer used);
205      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
206    o add option (linFSConserveTr) to correct for tracer source/sink due to
207      Linear Free surface
208    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
209    o pkg/thsice: fix reading mnc-pickups
210    
211    checkpoint58t_post
212    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
213    o pkg/mdsio:
214     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
215       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
216       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
217     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
218     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
219       either MDS_READ_FIELD or MDS_WRITE_FIELD )
220     - new S/R (to replace MDSWRITEMETA), which allows to write more
221       informations (variable names, time ...) to meta files.
222     - modify rdmds.m to give back the meta file content.
223    o pkg/diagnostics: change vertical interpolation to be safer, and more
224       flexible (define p-levels to interpolate to in data.diagnostics);
225      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
226       diagnostic pointer.
227    o pkg/seaice: more cleaning up of seaice_growth, added many comments
228    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
229    o fix multi-category seaice:
230     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
231       SEAICE_MULTICATEGORY
232     - fix short wave heat flux
233    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
234       and allow to use EVP solver. Change forward lab_sea: test both EVP
235       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
236    o Initial check-in of lab_sea adjoint
237      (very similar to natl_box_adjoint/code_seaice)
238      * used C-grid and EVP solver
239      * used KPP, GM/Redi
240      * uses inAdExact=.TRUE.
241      * gradient checks fail for both ADM and TLM
242        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
243        f.d. gradients actually seem more problematic than ADM, TLM gradients;
244        issue is related to forward mismatch between g77 an ifort
245    o pkg/seaice: overhaul of thermodynamics
246     - growth.F and groatb.F are replaced by new routine seaice_growth.F
247     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
248     - move a few global fields out of SEAICE.h into seaice_growth.F and
249       make them 2D (FICE/QNETO/ ...)
250     - remove FO (it is the same as QNETO)
251     - introduce a few local fields to avoid modifying external fields such
252       as atemp, etc.
253    
254    checkpoint58s_post
255    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
256      changed exf_set_gen.F so that
257        genperiod=0 means input file is one time-constant field and
258        genperiod=-12 means input file contains 12 monthly means
259    o CG2D: use pre-computed solver main-diagonal (stored in common block);
260      this affects truncation error ; generate new output file for exp. which
261      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
262        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
263        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
264        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
265        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
266        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
267    o start implementation of deep-atmosphere and anelastic formulation
268    o verification: remove 2nd copy of input files and use script "prepare_run"
269      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
270  o mom_common/vecinv/fluxform: fix a few initialisation isssues  o mom_common/vecinv/fluxform: fix a few initialisation isssues
271  o profiles: fix for multithreaded case  o profiles: fix for multithreaded case
272    

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