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revision 1.761 by jmc, Sat Dec 30 00:18:09 2006 UTC revision 1.837 by mlosch, Sun Jun 17 09:22:06 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: fix another bug in the LSR no-slip boundary conditons
8    o dependencies: pkg/profiles requires pkg/cal
9    o pkg/profiles:
10     - added option ALLOW_PROFILES_GENERICGRID
11         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
12         that interpolation information (grid points and coefficients) is provided
13         within the netcdf input files.
14         -> sample matlab scripts can be found in MITgcm_contrib/gael
15         that allow you to prepare netcdf input files.
16     - also modified: cleaner include statements, cleaner error print statements,
17       cleaner stops when error, and more tests of the netcdf input files consistency.
18    
19    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
20    o pkg/seaice:
21     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
22       requires a new routine: seaice_diagnostics_fill.F
23     - make sure that seaice does not move if not forced (pressure replacement
24       method, Hibler and Ip, 1995), changes results
25     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
26     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
27       It is turned off by default (=-1.), because it changes the results.
28     - make it possible to read AREA from a file, too.
29    
30    checkpoint59c
31    o add S/R and diagnostics for oceanic mixed-layer depth
32    o move GMRedi call after all vertical mixing schemes (including KPP)
33    o pkg/thsice:
34     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
35      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
36    o pkg/obcs:
37     - bug fix for balance code
38    o pkg/seaice:
39      - allow values of SEAICE_elasticParm > 1
40      - add new parameter SEAICE_evpTauRelax as an alternative
41        to SEAICE_elasticParm
42      - make lsr boundary conditions free slip (by default), changes result
43      - add code for no slip boundary conditions for lsr
44      - set minimum of zeta to zero (and not 4e8) (changes results)
45      - add a cap on AREA after advecting AREA if seaice_growth is not called
46    o change calculation of Visbeck K:
47      - no longer depend on tapering scheme; instead, compute slope (limited
48        by GM_maxSlope). this is equivalent to what was comuted before with
49        clipping or linear tappering.
50      - fix vertical averaging (wrong by 1/2 level)
51      - leave the old version (but will not be maintained) within
52        #ifdef OLD_VISBECK_CALC / #endif
53      - update output of exp. ideal_2D_oce
54    o change error catch in calc_r_star to improve vectorization
55    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
56      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
57    o adjoint:
58      Re-organized adjoint checkpointing according to Matt Mazloff
59      (but with modifs/completions/cleanups)
60      Storing is now bundled into large arrays to optimized I/O
61      (and second step in cleanup of the_main_loop)
62    
63    checkpoint59b
64    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
65      - export/import (between ocean & coupler) fields needed for ocean DIC.
66    o pkg/seaice:
67      - get rid of three more exchanges seaice_calc_viscosities (required
68        different loop boundaries in seaice_lsr and seaice_ocean_stress)
69      - bug fix in seaice_ocean_stress (update of lab_sea required)
70      - reduce loop boundaries to necessary minimum also in seaice_evp
71      - go back to the old way of computing deltaC/Z as the adjoint likes that
72        better
73    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
74      passive tracer to an Age Tracer) + update output.txt
75    o pkg/exf:
76      - implement A-grid / C-grid selection for wind-stress input files.
77      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
78      for now, in exf_bulk_largeyeager04.F only :
79      - change implementation for case where windspeed + 2. components wind-stress
80        are read-in. AND use rhoConstFresh to convert evap.
81    o pkg/seaice:
82      - use correct EXCH_UV for wind-forcing (on A-grid).
83      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
84        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
85    o pkg/exf:
86      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
87      EXF_INTERPOLATION:
88      - merge global_with_exf/code version of exf_interp_read.F
89        to the main code ;
90      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
91        reading the file ; Important: This options needs to be defined to recover
92        previous code.
93        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
94      - no longer loose real*8 precision along the way when using exf_iprec=64.
95    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
96      - change discretisation of evp-solver in order to avoid another exchange
97        (changes lab_sea) and clean up a little
98      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
99        help the adjoint (this also changes the results slightly)
100      - add a few "_d 0" where they had been missing in seaice_evp.F
101      - cleaning up: remove unused seaice_calc_rhs.F
102    o pkg/exf: some cleaning-up:
103      - change various "constants" into runtime parameters
104      - cleaned-up Large&Yeager04 routine which should eventually
105        replace exf_bulkformulae.F (changed names of S/R and CPP)
106        and merged various ALLOW_ATM_WIND options
107     only used with thsice pkg (in thsice_get_exf.F):
108      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
109        which are used when useStabilityFct_overIce=TRUE (= the default)
110      - change default values of ice & snow emissivity and scale downward LW
111        by ice & snow emissivity.
112    o pkg/thsice:
113     fix few little problems, in thsice_calc_thickn.F:
114      - growth vertically (and not laterally) if iceFrac == iceMaskMax
115      - melt only laterally if hIce < hThinIce (as the comments say)
116      and in thsice_extend.F:
117      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
118      - start to form ice as soon as the minimum ice-volume is reachable.
119     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
120      and cpl_aim+ocn
121    o pkg/kpp
122     - move computation of surface related input fields to KPP into a new
123       subroutine kpp_forcing_surf.F
124     - remove wrong (within bi,bj loops) EXCH calls.
125     - little cleaning (add argument myThid in last position, cvs header ...)
126     - for now, fix conservation problem by exchanging KPPviscAz (may not
127       be the best fix)
128    o pkg/seaice
129     - check for inconsistent evp parameter/cpp-flag combination
130     - remove leftover errIO flat for obsolete name list error handling
131    o OpenAD
132     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
133    
134    checkpoint59a
135    o pkg/seaice: some parameter clarifications and a little bit of clean up
136    o pkg/thsice: rename run-time parameters:
137       himin       -> hIceMin
138       himin0      -> hThinIce
139       hihig       -> hThickIce
140       i0          -> i0swFrac
141       transCoef   -> bMeltCoef
142       frac_energy -> fracMelting
143      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
144       with default values (for now) that do not change the results.
145      remove old version of thsice vars advection in pkg/seaice.
146    o in FFIELDS.h:
147      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
148      - make pLoad & sIceLoad always available (but still only used if
149         ATMOSPHERIC_LOADING is #define).
150    o pkg/kpp: replaced _KPP_RL with _RL
151    o bug fixes for vertical diffusivity computations when both KPP and
152        3D diffusivity arrays are used.
153    o pkg/seaice: fix bug in evp solver, while doing that
154      - change (improve?) discretization of stress computations for both
155        cgrid-lsr and evp solver
156      - add a new routine to compute strain rates
157      - the above changes lab_sea results
158      - add no slip conditions for evp solver (off by default), lsr-version
159        may follow
160      - fix exchange for shear at Z-points (does not change lab_sea)
161      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
162        (to force the user to pick a time step since there is not "safe" way
163        of choosing it)
164      - add principal stress diagnostics
165      - rearrange fields for evp a little to avoid having to call a: too many
166        exchanges and b: exchanges for stress trensor components which we do
167        not have.
168      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
169        of evp, complete rewrite for lsr case (latter is does not yet work
170        in all cases)
171    o pkg/kpp: add code to have mixing in shelf ice caverns
172      - add myThid to all kpp routines (long overdue)
173    
174    checkpoint59
175    o pkg/exf:
176      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
177        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
178      - move exf header files from lower_case.h to UPPER_CASE.h ;
179        add missing cvs Header & Name
180      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
181      - add namelist param. selectStressGridPosition, exf_monFreq
182      - retire many _CLIM routines, and remove data.exf_clim
183        + params moved to data.exf
184        + climsst, climsss now handled by exf_set_gen, i.e.
185          climss?period=0 refers to constant field,
186          climss?period=-12 to monthly forcing
187      - split up namelists in data.exf
188    o pkg/seaice:
189      - remove seaice_exch and seaice_exch_uv
190      - remove superfluous exchange of theta
191      - add myThid to seaice_budget_ocean/ice
192      - add new interface for atmospheric wind forcing (C-grid only)
193        + new routine
194        + two new field (taux, tauy for stress over ice)
195        + removed one global field (DAIRN) for C-grid case only
196    o pkg/thsise
197      - 2nd set of modifs for thsice adjoint in conjunction with exf
198    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
199    
200    checkpoint58y_post
201    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
202      vertical diffusivity, similar to that in MOM4; turned on using
203      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
204      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
205    o Added capability for 3D specification of background vertical diffusion
206      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
207      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
208      "data" file that contains the 3D vertical diffusivity coefficients.
209    o ice dynamics (pkg/seaice) with thsice thermodynamics:
210      - add code within pkg thsice to advect & diffuse sea-ice fields
211      similar to (and will replace) what has been added in  seaice_advdiff.F,
212      but: - conserving Mass, Heat & Salt.
213           - better when using non-linear advection scheme (not yet fully tested)
214           - can also be used in atmospheric set-up (for now, only the diffusion).
215    
216    checkpoint58x_post
217    o IO option for global-file compact format:
218      - add options when generating topology (utils/exch2/matlab-topology-generator)
219      - add I/O capability (pkg/mdsio).
220      - adapt utils/matlab/rdmds.m to read this format.
221      for now long-line format not yet supported by pkg/mdsio (& exch2).
222    o shelfice: add a few diagnostics
223    
224    checkpoint58w_post
225    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
226      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
227      (and replace horiVertRatio in NH code).
228      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
229                         and tutorial_plume_on_slope (sensitive to truncation)
230    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
231      directly to drive seaice model (C-grid only)
232    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
233     - reintroduce computation of wind from stress,
234     - compute tau (in exf_bulkformulae.F) from windstress averaged to
235       mass points to avoid tau = 0
236     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
237    o rdmnc.m: make it work with "global" files created with gluemnc
238    o rdmnc.m : some improvements in dealing with singleton dimension
239      (tested on all testreport mnc output files).
240    o genmake2: disable pkg/profiles if netcdf test fails.
241    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
242    o move call to cal_readparms up to make calendar parameters/variable available
243      to all packages
244    
245    checkpoint58v_post
246    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
247      useDynP_inEos_Zc tested.
248    o pkg/exf: changes to properly interpolate/mask/scale initial fields
249    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
250      and portions thereof.  See read_cs.txt for description and examples.
251    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
252      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
253      following the great-circle arc between those 2 points.
254    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
255      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
256    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
257     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
258     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
259     - still needs work (not working with some options ; efficiency to improve)
260       and serious testing.
261     - use this scheme for temperature & salinity in 2 advection test exp.:
262       advect_xy & advect_xz, respectively.
263    
264    checkpoint58u_post
265    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
266    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
267    o testreport: add option "-skipdir" to skip some test.
268    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
269      momentum calculation.
270    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
271    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
272      remove checkpoint.F and the_correction_step.F (no longer used);
273      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
274    o add option (linFSConserveTr) to correct for tracer source/sink due to
275      Linear Free surface
276    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
277    o pkg/thsice: fix reading mnc-pickups
278    
279    checkpoint58t_post
280  o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)  o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
281  o pkg/mdsio:  o pkg/mdsio:
282   - clean-up mdsio_readfield.F & mdsio_writefield_new.F and   - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
# Line 20  o pkg/diagnostics: change vertical inter Line 293  o pkg/diagnostics: change vertical inter
293    add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right    add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
294     diagnostic pointer.     diagnostic pointer.
295  o pkg/seaice: more cleaning up of seaice_growth, added many comments  o pkg/seaice: more cleaning up of seaice_growth, added many comments
296  o pkg/exf: put runoff0 and runoff into the appropriate common block  o pkg/exf: put runoff0 and runoff1 into the appropriate common block
297  o fix multi-category seaice:  o fix multi-category seaice:
298   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
299     SEAICE_MULTICATEGORY     SEAICE_MULTICATEGORY

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