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revision 1.740 by heimbach, Fri Oct 27 05:19:42 2006 UTC revision 1.817 by mlosch, Tue May 15 14:34:44 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/seaice:
8      - get rid of three more exchanges seaice_calc_viscosities (required
9        different loop boundaries in seaice_lsr and seaice_ocean_stress)
10      - bug fix in seaice_ocean_stress (update of lab_sea required)
11      - reduce loop boundaries to necessary minimum also in seaice_evp
12      - go back to the old way of computing deltaC/Z as the adjoint likes that
13        better
14    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
15      passive tracer to an Age Tracer) + update output.txt
16    o pkg/exf:
17      - implement A-grid / C-grid selection for wind-stress input files.
18      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
19      for now, in exf_bulk_largeyeager04.F only :
20      - change implementation for case where windspeed + 2. components wind-stress
21        are read-in. AND use rhoConstFresh to convert evap.
22    o pkg/seaice:
23      - use correct EXCH_UV for wind-forcing (on A-grid).
24      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
25        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
26    o pkg/exf:
27      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
28      EXF_INTERPOLATION:
29      - merge global_with_exf/code version of exf_interp_read.F
30        to the main code ;
31      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
32        reading the file ; Important: This options needs to be defined to recover
33        previous code.
34        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
35      - no longer loose real*8 precision along the way when using exf_iprec=64.
36    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
37      - change discretisation of evp-solver in order to avoid another exchange
38        (changes lab_sea) and clean up a little
39      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
40        help the adjoint (this also changes the results slightly)
41      - add a few "_d 0" where they had been missing in seaice_evp.F
42      - cleaning up: remove unused seaice_calc_rhs.F
43    o pkg/exf: some cleaning-up:
44      - change various "constants" into runtime parameters
45      - cleaned-up Large&Yeager04 routine which should eventually
46        replace exf_bulkformulae.F (changed names of S/R and CPP)
47        and merged various ALLOW_ATM_WIND options
48     only used with thsice pkg (in thsice_get_exf.F):
49      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
50        which are used when useStabilityFct_overIce=TRUE (= the default)
51      - change default values of ice & snow emissivity and scale downward LW
52        by ice & snow emissivity.
53    o pkg/thsice:
54     fix few little problems, in thsice_calc_thickn.F:
55      - growth vertically (and not laterally) if iceFrac == iceMaskMax
56      - melt laterally only if hIce < hThinIce (as the comments say)
57      and in thsice_extend.F:
58      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
59      - start to form ice as soon as the minimum ice-volume is reachable.
60     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
61      and cpl_aim+ocn
62    o pkg/kpp
63     - move computation of surface related input fields to KPP into a new
64       subroutine kpp_forcing_surf.F
65     - remove wrong (within bi,bj loops) EXCH calls.
66     - little cleaning (add argument myThid in last position, cvs header ...)
67     - for now, fix conservation problem by exchanging KPPviscAz (may not
68       be the best fix)
69    o pkg/seaice
70     - check for inconsistent evp parameter/cpp-flag combination
71     - remove leftover errIO flat for obsolete name list error handling
72    o OpenAD
73     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
74    
75    checkpoint59a
76    o pkg/seaice: some parameter clarifications and a little bit of clean up
77    o pkg/thsice: rename run-time parameters:
78       himin       -> hIceMin
79       himin0      -> hThinIce
80       hihig       -> hThickIce
81       i0          -> i0swFrac
82       transCoef   -> bMeltCoef
83       frac_energy -> fracMelting
84      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
85       with default values (for now) that do not change the results.
86      remove old version of thsice vars advection in pkg/seaice.
87    o in FFIELDS.h:
88      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
89      - make pLoad & sIceLoad always available (but still only used if
90         ATMOSPHERIC_LOADING is #define).
91    o pkg/kpp: replaced _KPP_RL with _RL
92    o bug fixes for vertical diffusivity computations when both KPP and
93        3D diffusivity arrays are used.
94    o pkg/seaice: fix bug in evp solver, while doing that
95      - change (improve?) discretization of stress computations for both
96        cgrid-lsr and evp solver
97      - add a new routine to compute strain rates
98      - the above changes lab_sea results
99      - add no slip conditions for evp solver (off by default), lsr-version
100        may follow
101      - fix exchange for shear at Z-points (does not change lab_sea)
102      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
103        (to force the user to pick a time step since there is not "safe" way
104        of choosing it)
105      - add principal stress diagnostics
106      - rearrange fields for evp a little to avoid having to call a: too many
107        exchanges and b: exchanges for stress trensor components which we do
108        not have.
109      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
110        of evp, complete rewrite for lsr case (latter is does not yet work
111        in all cases)
112    o pkg/kpp: add code to have mixing in shelf ice caverns
113      - add myThid to all kpp routines (long overdue)
114    
115    checkpoint59
116    o pkg/exf:
117      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
118        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
119      - move exf header files from lower_case.h to UPPER_CASE.h ;
120        add missing cvs Header & Name
121      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
122      - add namelist param. selectStressGridPosition, exf_monFreq
123      - retire many _CLIM routines, and remove data.exf_clim
124        + params moved to data.exf
125        + climsst, climsss now handled by exf_set_gen, i.e.
126          climss?period=0 refers to constant field,
127          climss?period=-12 to monthly forcing
128      - split up namelists in data.exf
129    o pkg/seaice:
130      - remove seaice_exch and seaice_exch_uv
131      - remove superfluous exchange of theta
132      - add myThid to seaice_budget_ocean/ice
133      - add new interface for atmospheric wind forcing (C-grid only)
134        + new routine
135        + two new field (taux, tauy for stress over ice)
136        + removed one global field (DAIRN) for C-grid case only
137    o pkg/thsise
138      - 2nd set of modifs for thsice adjoint in conjunction with exf
139    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
140    
141    checkpoint58y_post
142    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
143      vertical diffusivity, similar to that in MOM4; turned on using
144      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
145      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
146    o Added capability for 3D specification of background vertical diffusion
147      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
148      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
149      "data" file that contains the 3D vertical diffusivity coefficients.
150    o ice dynamics (pkg/seaice) with thsice thermodynamics:
151      - add code within pkg thsice to advect & diffuse sea-ice fields
152      similar to (and will replace) what has been added in  seaice_advdiff.F,
153      but: - conserving Mass, Heat & Salt.
154           - better when using non-linear advection scheme (not yet fully tested)
155           - can also be used in atmospheric set-up (for now, only the diffusion).
156    
157    checkpoint58x_post
158    o IO option for global-file compact format:
159      - add options when generating topology (utils/exch2/matlab-topology-generator)
160      - add I/O capability (pkg/mdsio).
161      - adapt utils/matlab/rdmds.m to read this format.
162      for now long-line format not yet supported by pkg/mdsio (& exch2).
163    o shelfice: add a few diagnostics
164    
165    checkpoint58w_post
166    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
167      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
168      (and replace horiVertRatio in NH code).
169      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
170                         and tutorial_plume_on_slope (sensitive to truncation)
171    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
172      directly to drive seaice model (C-grid only)
173    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
174     - reintroduce computation of wind from stress,
175     - compute tau (in exf_bulkformulae.F) from windstress averaged to
176       mass points to avoid tau = 0
177     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
178    o rdmnc.m: make it work with "global" files created with gluemnc
179    o rdmnc.m : some improvements in dealing with singleton dimension
180      (tested on all testreport mnc output files).
181    o genmake2: disable pkg/profiles if netcdf test fails.
182    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
183    o move call to cal_readparms up to make calendar parameters/variable available
184      to all packages
185    
186    checkpoint58v_post
187    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
188      useDynP_inEos_Zc tested.
189    o pkg/exf: changes to properly interpolate/mask/scale initial fields
190    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
191      and portions thereof.  See read_cs.txt for description and examples.
192    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
193      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
194      following the great-circle arc between those 2 points.
195    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
196      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
197    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
198     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
199     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
200     - still needs work (not working with some options ; efficiency to improve)
201       and serious testing.
202     - use this scheme for temperature & salinity in 2 advection test exp.:
203       advect_xy & advect_xz, respectively.
204    
205    checkpoint58u_post
206    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
207    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
208    o testreport: add option "-skipdir" to skip some test.
209    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
210      momentum calculation.
211    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
212    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
213      remove checkpoint.F and the_correction_step.F (no longer used);
214      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
215    o add option (linFSConserveTr) to correct for tracer source/sink due to
216      Linear Free surface
217    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
218    o pkg/thsice: fix reading mnc-pickups
219    
220    checkpoint58t_post
221    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
222    o pkg/mdsio:
223     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
224       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
225       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
226     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
227     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
228       either MDS_READ_FIELD or MDS_WRITE_FIELD )
229     - new S/R (to replace MDSWRITEMETA), which allows to write more
230       informations (variable names, time ...) to meta files.
231     - modify rdmds.m to give back the meta file content.
232    o pkg/diagnostics: change vertical interpolation to be safer, and more
233       flexible (define p-levels to interpolate to in data.diagnostics);
234      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
235       diagnostic pointer.
236    o pkg/seaice: more cleaning up of seaice_growth, added many comments
237    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
238    o fix multi-category seaice:
239     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
240       SEAICE_MULTICATEGORY
241     - fix short wave heat flux
242    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
243       and allow to use EVP solver. Change forward lab_sea: test both EVP
244       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
245    o Initial check-in of lab_sea adjoint
246      (very similar to natl_box_adjoint/code_seaice)
247      * used C-grid and EVP solver
248      * used KPP, GM/Redi
249      * uses inAdExact=.TRUE.
250      * gradient checks fail for both ADM and TLM
251        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
252        f.d. gradients actually seem more problematic than ADM, TLM gradients;
253        issue is related to forward mismatch between g77 an ifort
254    o pkg/seaice: overhaul of thermodynamics
255     - growth.F and groatb.F are replaced by new routine seaice_growth.F
256     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
257     - move a few global fields out of SEAICE.h into seaice_growth.F and
258       make them 2D (FICE/QNETO/ ...)
259     - remove FO (it is the same as QNETO)
260     - introduce a few local fields to avoid modifying external fields such
261       as atemp, etc.
262    
263    checkpoint58s_post
264    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
265      changed exf_set_gen.F so that
266        genperiod=0 means input file is one time-constant field and
267        genperiod=-12 means input file contains 12 monthly means
268    o CG2D: use pre-computed solver main-diagonal (stored in common block);
269      this affects truncation error ; generate new output file for exp. which
270      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
271        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
272        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
273        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
274        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
275        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
276    o start implementation of deep-atmosphere and anelastic formulation
277    o verification: remove 2nd copy of input files and use script "prepare_run"
278      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
279    o mom_common/vecinv/fluxform: fix a few initialisation isssues
280    o profiles: fix for multithreaded case
281    
282    o diagnostics: rename few diags:
283      s/'PRESSURE'/'RCENTER '/g
284      s/'TICE    '/'oceFreez'/g
285      s/'TAUX    '/'oceTAUX '/g
286      s/'TAUY    '/'oceTAUY '/g
287      s/'SWFLUX  '/'oceQsw  '/g
288      s/DIFx/DFxE/g
289      s/DIFy/DFyE/g
290      and add few ocean-forcing diagnostics:
291      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
292    o modifications to pkg/seaice/growth.F and budget.F, which change results of
293      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
294      as actual snow thickness.  It now refers everywhere to effective snow
295      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
296    
297    checkpoint58r_post
298    o modifications to pkg/seaice/growth.F, which change results of
299      lab_sea experiment: fixes pertain to melting snow over open water, to
300      masking EVAP under sea ice, and to using the correct AREA variable for
301      computations of EVAP, PRECIP, HSNOW, and GHEFF
302    o add ability to read bathy, salt, and theta using MNC (off by def)
303    o add flooding algorithm and advection of HSNOW for pkg/seaice;
304      both are turned off by default and do no change any results
305    o seaice advection with pkg/thsice: a step toward the use of non-linear
306      advection scheme, but #ifdef or commented out for now (requires more EXCH).
307  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
308    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
309    in natl_box (affects results @ truncation level: update output.txt)    in natl_box (affects results @ truncation level: update output.txt)

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