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revision 1.757 by mlosch, Wed Dec 20 12:27:02 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:  o fix multi-category seaice:
274   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
275     SEAICE_MULTICATEGORY     SEAICE_MULTICATEGORY
276   - fix short wave heat flux   - 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  o Initial check-in of lab_sea adjoint
281    (very similar to natl_box_adjoint/code_seaice)    (very similar to natl_box_adjoint/code_seaice)
282    * used C-grid and EVP solver    * used C-grid and EVP solver

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