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revision 1.752 by jmc, Tue Dec 5 22:15:47 2006 UTC revision 1.826 by mlosch, Fri Jun 1 12:57:48 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/obcs:
8     - bug fix for balance code
9    o pkg/seaice:
10      - allow values of SEAICE_elasticParm > 1
11      - add new parameter SEAICE_evpTauRelax as an alternative
12        to SEAICE_elasticParm
13      - make lsr boundary conditions free slip (by default), changes result
14      - add code for no slip boundary conditions for lsr
15      - set minimum of zeta to zero (and not 4e8) (changes results)
16      - add a cap on AREA after advecting AREA if seaice_growth is not called
17    o change calculation of Visbeck K:
18      - no longer depend on tapering scheme; instead, compute slope (limited
19        by GM_maxSlope). this is equivalent to what was comuted before with
20        clipping or linear tappering.
21      - fix vertical averaging (wrong by 1 level)
22      - leave the old version (but will not be maintained) within
23        #ifdef OLD_VISBECK_CALC / #endif
24    o change error catch in calc_r_star to improve vectorization
25    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
26      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
27    
28    checkpoint59b
29    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
30      - export/import (between ocean & coupler) fields needed for ocean DIC.
31    o pkg/seaice:
32      - get rid of three more exchanges seaice_calc_viscosities (required
33        different loop boundaries in seaice_lsr and seaice_ocean_stress)
34      - bug fix in seaice_ocean_stress (update of lab_sea required)
35      - reduce loop boundaries to necessary minimum also in seaice_evp
36      - go back to the old way of computing deltaC/Z as the adjoint likes that
37        better
38    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
39      passive tracer to an Age Tracer) + update output.txt
40    o pkg/exf:
41      - implement A-grid / C-grid selection for wind-stress input files.
42      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
43      for now, in exf_bulk_largeyeager04.F only :
44      - change implementation for case where windspeed + 2. components wind-stress
45        are read-in. AND use rhoConstFresh to convert evap.
46    o pkg/seaice:
47      - use correct EXCH_UV for wind-forcing (on A-grid).
48      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
49        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
50    o pkg/exf:
51      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
52      EXF_INTERPOLATION:
53      - merge global_with_exf/code version of exf_interp_read.F
54        to the main code ;
55      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
56        reading the file ; Important: This options needs to be defined to recover
57        previous code.
58        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
59      - no longer loose real*8 precision along the way when using exf_iprec=64.
60    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
61      - change discretisation of evp-solver in order to avoid another exchange
62        (changes lab_sea) and clean up a little
63      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
64        help the adjoint (this also changes the results slightly)
65      - add a few "_d 0" where they had been missing in seaice_evp.F
66      - cleaning up: remove unused seaice_calc_rhs.F
67    o pkg/exf: some cleaning-up:
68      - change various "constants" into runtime parameters
69      - cleaned-up Large&Yeager04 routine which should eventually
70        replace exf_bulkformulae.F (changed names of S/R and CPP)
71        and merged various ALLOW_ATM_WIND options
72     only used with thsice pkg (in thsice_get_exf.F):
73      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
74        which are used when useStabilityFct_overIce=TRUE (= the default)
75      - change default values of ice & snow emissivity and scale downward LW
76        by ice & snow emissivity.
77    o pkg/thsice:
78     fix few little problems, in thsice_calc_thickn.F:
79      - growth vertically (and not laterally) if iceFrac == iceMaskMax
80      - melt laterally only if hIce < hThinIce (as the comments say)
81      and in thsice_extend.F:
82      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
83      - start to form ice as soon as the minimum ice-volume is reachable.
84     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
85      and cpl_aim+ocn
86    o pkg/kpp
87     - move computation of surface related input fields to KPP into a new
88       subroutine kpp_forcing_surf.F
89     - remove wrong (within bi,bj loops) EXCH calls.
90     - little cleaning (add argument myThid in last position, cvs header ...)
91     - for now, fix conservation problem by exchanging KPPviscAz (may not
92       be the best fix)
93    o pkg/seaice
94     - check for inconsistent evp parameter/cpp-flag combination
95     - remove leftover errIO flat for obsolete name list error handling
96    o OpenAD
97     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
98    
99    checkpoint59a
100    o pkg/seaice: some parameter clarifications and a little bit of clean up
101    o pkg/thsice: rename run-time parameters:
102       himin       -> hIceMin
103       himin0      -> hThinIce
104       hihig       -> hThickIce
105       i0          -> i0swFrac
106       transCoef   -> bMeltCoef
107       frac_energy -> fracMelting
108      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
109       with default values (for now) that do not change the results.
110      remove old version of thsice vars advection in pkg/seaice.
111    o in FFIELDS.h:
112      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
113      - make pLoad & sIceLoad always available (but still only used if
114         ATMOSPHERIC_LOADING is #define).
115    o pkg/kpp: replaced _KPP_RL with _RL
116    o bug fixes for vertical diffusivity computations when both KPP and
117        3D diffusivity arrays are used.
118    o pkg/seaice: fix bug in evp solver, while doing that
119      - change (improve?) discretization of stress computations for both
120        cgrid-lsr and evp solver
121      - add a new routine to compute strain rates
122      - the above changes lab_sea results
123      - add no slip conditions for evp solver (off by default), lsr-version
124        may follow
125      - fix exchange for shear at Z-points (does not change lab_sea)
126      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
127        (to force the user to pick a time step since there is not "safe" way
128        of choosing it)
129      - add principal stress diagnostics
130      - rearrange fields for evp a little to avoid having to call a: too many
131        exchanges and b: exchanges for stress trensor components which we do
132        not have.
133      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
134        of evp, complete rewrite for lsr case (latter is does not yet work
135        in all cases)
136    o pkg/kpp: add code to have mixing in shelf ice caverns
137      - add myThid to all kpp routines (long overdue)
138    
139    checkpoint59
140    o pkg/exf:
141      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
142        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
143      - move exf header files from lower_case.h to UPPER_CASE.h ;
144        add missing cvs Header & Name
145      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
146      - add namelist param. selectStressGridPosition, exf_monFreq
147      - retire many _CLIM routines, and remove data.exf_clim
148        + params moved to data.exf
149        + climsst, climsss now handled by exf_set_gen, i.e.
150          climss?period=0 refers to constant field,
151          climss?period=-12 to monthly forcing
152      - split up namelists in data.exf
153    o pkg/seaice:
154      - remove seaice_exch and seaice_exch_uv
155      - remove superfluous exchange of theta
156      - add myThid to seaice_budget_ocean/ice
157      - add new interface for atmospheric wind forcing (C-grid only)
158        + new routine
159        + two new field (taux, tauy for stress over ice)
160        + removed one global field (DAIRN) for C-grid case only
161    o pkg/thsise
162      - 2nd set of modifs for thsice adjoint in conjunction with exf
163    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
164    
165    checkpoint58y_post
166    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
167      vertical diffusivity, similar to that in MOM4; turned on using
168      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
169      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
170    o Added capability for 3D specification of background vertical diffusion
171      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
172      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
173      "data" file that contains the 3D vertical diffusivity coefficients.
174    o ice dynamics (pkg/seaice) with thsice thermodynamics:
175      - add code within pkg thsice to advect & diffuse sea-ice fields
176      similar to (and will replace) what has been added in  seaice_advdiff.F,
177      but: - conserving Mass, Heat & Salt.
178           - better when using non-linear advection scheme (not yet fully tested)
179           - can also be used in atmospheric set-up (for now, only the diffusion).
180    
181    checkpoint58x_post
182    o IO option for global-file compact format:
183      - add options when generating topology (utils/exch2/matlab-topology-generator)
184      - add I/O capability (pkg/mdsio).
185      - adapt utils/matlab/rdmds.m to read this format.
186      for now long-line format not yet supported by pkg/mdsio (& exch2).
187    o shelfice: add a few diagnostics
188    
189    checkpoint58w_post
190    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
191      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
192      (and replace horiVertRatio in NH code).
193      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
194                         and tutorial_plume_on_slope (sensitive to truncation)
195    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
196      directly to drive seaice model (C-grid only)
197    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
198     - reintroduce computation of wind from stress,
199     - compute tau (in exf_bulkformulae.F) from windstress averaged to
200       mass points to avoid tau = 0
201     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
202    o rdmnc.m: make it work with "global" files created with gluemnc
203    o rdmnc.m : some improvements in dealing with singleton dimension
204      (tested on all testreport mnc output files).
205    o genmake2: disable pkg/profiles if netcdf test fails.
206    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
207    o move call to cal_readparms up to make calendar parameters/variable available
208      to all packages
209    
210    checkpoint58v_post
211    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
212      useDynP_inEos_Zc tested.
213    o pkg/exf: changes to properly interpolate/mask/scale initial fields
214    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
215      and portions thereof.  See read_cs.txt for description and examples.
216    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
217      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
218      following the great-circle arc between those 2 points.
219    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
220      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
221    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
222     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
223     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
224     - still needs work (not working with some options ; efficiency to improve)
225       and serious testing.
226     - use this scheme for temperature & salinity in 2 advection test exp.:
227       advect_xy & advect_xz, respectively.
228    
229    checkpoint58u_post
230    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
231    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
232    o testreport: add option "-skipdir" to skip some test.
233    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
234      momentum calculation.
235    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
236    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
237      remove checkpoint.F and the_correction_step.F (no longer used);
238      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
239    o add option (linFSConserveTr) to correct for tracer source/sink due to
240      Linear Free surface
241    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
242    o pkg/thsice: fix reading mnc-pickups
243    
244    checkpoint58t_post
245    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
246    o pkg/mdsio:
247     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
248       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
249       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
250     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
251     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
252       either MDS_READ_FIELD or MDS_WRITE_FIELD )
253     - new S/R (to replace MDSWRITEMETA), which allows to write more
254       informations (variable names, time ...) to meta files.
255     - modify rdmds.m to give back the meta file content.
256    o pkg/diagnostics: change vertical interpolation to be safer, and more
257       flexible (define p-levels to interpolate to in data.diagnostics);
258      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
259       diagnostic pointer.
260    o pkg/seaice: more cleaning up of seaice_growth, added many comments
261    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
262    o fix multi-category seaice:
263     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
264       SEAICE_MULTICATEGORY
265     - fix short wave heat flux
266    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
267       and allow to use EVP solver. Change forward lab_sea: test both EVP
268       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
269    o Initial check-in of lab_sea adjoint
270      (very similar to natl_box_adjoint/code_seaice)
271      * used C-grid and EVP solver
272      * used KPP, GM/Redi
273      * uses inAdExact=.TRUE.
274      * gradient checks fail for both ADM and TLM
275        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
276        f.d. gradients actually seem more problematic than ADM, TLM gradients;
277        issue is related to forward mismatch between g77 an ifort
278    o pkg/seaice: overhaul of thermodynamics
279     - growth.F and groatb.F are replaced by new routine seaice_growth.F
280     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
281     - move a few global fields out of SEAICE.h into seaice_growth.F and
282       make them 2D (FICE/QNETO/ ...)
283     - remove FO (it is the same as QNETO)
284     - introduce a few local fields to avoid modifying external fields such
285       as atemp, etc.
286    
287    checkpoint58s_post
288    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
289      changed exf_set_gen.F so that
290        genperiod=0 means input file is one time-constant field and
291        genperiod=-12 means input file contains 12 monthly means
292  o CG2D: use pre-computed solver main-diagonal (stored in common block);  o CG2D: use pre-computed solver main-diagonal (stored in common block);
293    this affects truncation error ; generate new output file for exp. which    this affects truncation error ; generate new output file for exp. which
294    fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),    fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),

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