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revision 1.715 by mlosch, Mon Aug 14 16:53:08 2006 UTC revision 1.800 by mlosch, Tue Apr 24 11:24:37 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 shelfice: add a simple boundary layer scheme to reduce noise  o pkg/kpp: replaced _KPP_RL with _RL
8    o bug fixes for vertical diffusivity computations when both KPP and
9        3D diffusivity arrays are used.
10    o pkg/seaice: fix bug in evp solver, while doing that
11      - change (improve?) discretization of stress computations for both
12        cgrid-lsr and evp solver
13      - add a new routine to compute strain rates
14      - the above changes lab_sea results
15      - add no slip conditions for evp solver (off by default), lsr-version
16        may follow
17      - fix exchange for shear at Z-points (does not change lab_sea)
18      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
19        (to force the user to pick a time step since there is not "safe" way
20        of choosing it)
21      - add principal stress diagnostics
22      - rearrange fields for evp a little to avoid having to call a: too many
23        exchanges and b: exchanges for stress trensor components which we do
24        not have.
25      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
26        of evp, complete rewrite for lsr case (latter is does not yet work
27        in all cases)
28    o pkg/kpp: add code to have mixing in shelf ice caverns
29    
30    checkpoint59
31    o pkg/exf:
32      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
33        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
34      - move exf header files from lower_case.h to UPPER_CASE.h ;
35        add missing cvs Header & Name
36      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
37      - add namelist param. selectStressGridPosition, exf_monFreq
38      - retire many _CLIM routines, and remove data.exf_clim
39        + params moved to data.exf
40        + climsst, climsss now handled by exf_set_gen, i.e.
41          climss?period=0 refers to constant field,
42          climss?period=-12 to monthly forcing
43      - split up namelists in data.exf
44    o pkg/seaice:
45      - remove seaice_exch and seaice_exch_uv
46      - remove superfluous exchange of theta
47      - add myThid to seaice_budget_ocean/ice
48      - add new interface for atmospheric wind forcing (C-grid only)
49        + new routine
50        + two new field (taux, tauy for stress over ice)
51        + removed one global field (DAIRN) for C-grid case only
52    o pkg/thsise
53      - 2nd set of modifs for thsice adjoint in conjunction with exf
54    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
55    
56    checkpoint58y_post
57    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
58      vertical diffusivity, similar to that in MOM4; turned on using
59      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
60      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
61    o Added capability for 3D specification of background vertical diffusion
62      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
63      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
64      "data" file that contains the 3D vertical diffusivity coefficients.
65    o ice dynamics (pkg/seaice) with thsice thermodynamics:
66      - add code within pkg thsice to advect & diffuse sea-ice fields
67      similar to (and will replace) what has been added in  seaice_advdiff.F,
68      but: - conserving Mass, Heat & Salt.
69           - better when using non-linear advection scheme (not yet fully tested)
70           - can also be used in atmospheric set-up (for now, only the diffusion).
71    
72    checkpoint58x_post
73    o IO option for global-file compact format:
74      - add options when generating topology (utils/exch2/matlab-topology-generator)
75      - add I/O capability (pkg/mdsio).
76      - adapt utils/matlab/rdmds.m to read this format.
77      for now long-line format not yet supported by pkg/mdsio (& exch2).
78    o shelfice: add a few diagnostics
79    
80    checkpoint58w_post
81    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
82      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
83      (and replace horiVertRatio in NH code).
84      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
85                         and tutorial_plume_on_slope (sensitive to truncation)
86    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
87      directly to drive seaice model (C-grid only)
88    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
89     - reintroduce computation of wind from stress,
90     - compute tau (in exf_bulkformulae.F) from windstress averaged to
91       mass points to avoid tau = 0
92     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
93    o rdmnc.m: make it work with "global" files created with gluemnc
94    o rdmnc.m : some improvements in dealing with singleton dimension
95      (tested on all testreport mnc output files).
96    o genmake2: disable pkg/profiles if netcdf test fails.
97    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
98    o move call to cal_readparms up to make calendar parameters/variable available
99      to all packages
100    
101    checkpoint58v_post
102    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
103      useDynP_inEos_Zc tested.
104    o pkg/exf: changes to properly interpolate/mask/scale initial fields
105    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
106      and portions thereof.  See read_cs.txt for description and examples.
107    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
108      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
109      following the great-circle arc between those 2 points.
110    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
111      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
112    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
113     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
114     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
115     - still needs work (not working with some options ; efficiency to improve)
116       and serious testing.
117     - use this scheme for temperature & salinity in 2 advection test exp.:
118       advect_xy & advect_xz, respectively.
119    
120    checkpoint58u_post
121    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
122    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
123    o testreport: add option "-skipdir" to skip some test.
124    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
125      momentum calculation.
126    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
127    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
128      remove checkpoint.F and the_correction_step.F (no longer used);
129      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
130    o add option (linFSConserveTr) to correct for tracer source/sink due to
131      Linear Free surface
132    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
133    o pkg/thsice: fix reading mnc-pickups
134    
135    checkpoint58t_post
136    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
137    o pkg/mdsio:
138     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
139       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
140       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
141     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
142     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
143       either MDS_READ_FIELD or MDS_WRITE_FIELD )
144     - new S/R (to replace MDSWRITEMETA), which allows to write more
145       informations (variable names, time ...) to meta files.
146     - modify rdmds.m to give back the meta file content.
147    o pkg/diagnostics: change vertical interpolation to be safer, and more
148       flexible (define p-levels to interpolate to in data.diagnostics);
149      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
150       diagnostic pointer.
151    o pkg/seaice: more cleaning up of seaice_growth, added many comments
152    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
153    o fix multi-category seaice:
154     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
155       SEAICE_MULTICATEGORY
156     - fix short wave heat flux
157    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
158       and allow to use EVP solver. Change forward lab_sea: test both EVP
159       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
160    o Initial check-in of lab_sea adjoint
161      (very similar to natl_box_adjoint/code_seaice)
162      * used C-grid and EVP solver
163      * used KPP, GM/Redi
164      * uses inAdExact=.TRUE.
165      * gradient checks fail for both ADM and TLM
166        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
167        f.d. gradients actually seem more problematic than ADM, TLM gradients;
168        issue is related to forward mismatch between g77 an ifort
169    o pkg/seaice: overhaul of thermodynamics
170     - growth.F and groatb.F are replaced by new routine seaice_growth.F
171     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
172     - move a few global fields out of SEAICE.h into seaice_growth.F and
173       make them 2D (FICE/QNETO/ ...)
174     - remove FO (it is the same as QNETO)
175     - introduce a few local fields to avoid modifying external fields such
176       as atemp, etc.
177    
178    checkpoint58s_post
179    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
180      changed exf_set_gen.F so that
181        genperiod=0 means input file is one time-constant field and
182        genperiod=-12 means input file contains 12 monthly means
183    o CG2D: use pre-computed solver main-diagonal (stored in common block);
184      this affects truncation error ; generate new output file for exp. which
185      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
186        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
187        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
188        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
189        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
190        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
191    o start implementation of deep-atmosphere and anelastic formulation
192    o verification: remove 2nd copy of input files and use script "prepare_run"
193      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
194    o mom_common/vecinv/fluxform: fix a few initialisation isssues
195    o profiles: fix for multithreaded case
196    
197    o diagnostics: rename few diags:
198      s/'PRESSURE'/'RCENTER '/g
199      s/'TICE    '/'oceFreez'/g
200      s/'TAUX    '/'oceTAUX '/g
201      s/'TAUY    '/'oceTAUY '/g
202      s/'SWFLUX  '/'oceQsw  '/g
203      s/DIFx/DFxE/g
204      s/DIFy/DFyE/g
205      and add few ocean-forcing diagnostics:
206      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
207    o modifications to pkg/seaice/growth.F and budget.F, which change results of
208      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
209      as actual snow thickness.  It now refers everywhere to effective snow
210      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
211    
212    checkpoint58r_post
213    o modifications to pkg/seaice/growth.F, which change results of
214      lab_sea experiment: fixes pertain to melting snow over open water, to
215      masking EVAP under sea ice, and to using the correct AREA variable for
216      computations of EVAP, PRECIP, HSNOW, and GHEFF
217    o add ability to read bathy, salt, and theta using MNC (off by def)
218    o add flooding algorithm and advection of HSNOW for pkg/seaice;
219      both are turned off by default and do no change any results
220    o seaice advection with pkg/thsice: a step toward the use of non-linear
221      advection scheme, but #ifdef or commented out for now (requires more EXCH).
222    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
223      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
224      in natl_box (affects results @ truncation level: update output.txt)
225    o multi-threading and IO:
226      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
227      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
228        (needed to work with SingleCpuIO): tested in all verif. exp.
229    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
230      affects the results (but none of the verification test uses this scheme).
231    o Adding some pkg/diagnostics capability to pkg/seaice
232      (will certainly be subject to changes)
233    o ctrl: adding new control variables:
234      lwflux, lwdown, evap, snowprecip, apressure, runoff
235    
236    checkpoint58q_post
237    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
238      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
239      high_res_cube configuration by 4% on Columbia.
240    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
241      add (in global_with_exf/code) a version of EXF_INTERP_READ without
242      dynamical allocation (seems to work in multi-threaded).
243    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
244      single CPU io) so that TAF does not have to see EESUPPORT.h
245    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
246    
247    checkpoint58p_post
248    o obcs: stop if obcs is used with useCDscheme = .true.
249    o shelfice:
250     - fix a sign error so that no slip at shelfice interface works
251     - remove stop for combination non-hydrostatic code and shelfice. That does
252       not mean, that the results are correct, but at least they are numerically
253       stable
254    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
255    o added adjoint exch routined for all exch*3d* routines
256      and updated flow directives
257    
258    checkpoint58o_post
259    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
260      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
261    o change controling S/R for writing pickup file (new S/R do_write_pickup)
262      and clean-up reading/writing of pickup files.
263    o fix local version of read/write pickup (NH part) in rotating_tank/code
264    o simplify EXCH interface:
265     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
266     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
267    o added the regrid package
268    o shelfice:
269     - add a simple boundary layer scheme to reduce noise
270     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
271    
272  checkpoint58n_post  checkpoint58n_post
273  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to  o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to

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