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revision 1.764 by jmc, Thu Jan 11 00:29:41 2007 UTC revision 1.833 by mlosch, Thu Jun 7 14:02:06 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:
8     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
9       requires a new routine: seaice_diagnostics_fill.F
10     - make sure that seaice does not move if not forced (pressure replacement
11       method, Hibler and Ip, 1995), changes results
12     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
13     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
14       It is turned off by default (=-1.), because it changes the results.
15     - make it possible to read AREA from a file, too.
16    
17    checkpoint59c
18    o add S/R and diagnostics for oceanic mixed-layer depth
19    o move GMRedi call after all vertical mixing schemes (including KPP)
20    o pkg/thsice:
21     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
22      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
23    o pkg/obcs:
24     - bug fix for balance code
25    o pkg/seaice:
26      - allow values of SEAICE_elasticParm > 1
27      - add new parameter SEAICE_evpTauRelax as an alternative
28        to SEAICE_elasticParm
29      - make lsr boundary conditions free slip (by default), changes result
30      - add code for no slip boundary conditions for lsr
31      - set minimum of zeta to zero (and not 4e8) (changes results)
32      - add a cap on AREA after advecting AREA if seaice_growth is not called
33    o change calculation of Visbeck K:
34      - no longer depend on tapering scheme; instead, compute slope (limited
35        by GM_maxSlope). this is equivalent to what was comuted before with
36        clipping or linear tappering.
37      - fix vertical averaging (wrong by 1/2 level)
38      - leave the old version (but will not be maintained) within
39        #ifdef OLD_VISBECK_CALC / #endif
40      - update output of exp. ideal_2D_oce
41    o change error catch in calc_r_star to improve vectorization
42    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
43      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
44    o adjoint:
45      Re-organized adjoint checkpointing according to Matt Mazloff
46      (but with modifs/completions/cleanups)
47      Storing is now bundled into large arrays to optimized I/O
48      (and second step in cleanup of the_main_loop)
49    
50    checkpoint59b
51    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
52      - export/import (between ocean & coupler) fields needed for ocean DIC.
53    o pkg/seaice:
54      - get rid of three more exchanges seaice_calc_viscosities (required
55        different loop boundaries in seaice_lsr and seaice_ocean_stress)
56      - bug fix in seaice_ocean_stress (update of lab_sea required)
57      - reduce loop boundaries to necessary minimum also in seaice_evp
58      - go back to the old way of computing deltaC/Z as the adjoint likes that
59        better
60    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
61      passive tracer to an Age Tracer) + update output.txt
62    o pkg/exf:
63      - implement A-grid / C-grid selection for wind-stress input files.
64      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
65      for now, in exf_bulk_largeyeager04.F only :
66      - change implementation for case where windspeed + 2. components wind-stress
67        are read-in. AND use rhoConstFresh to convert evap.
68    o pkg/seaice:
69      - use correct EXCH_UV for wind-forcing (on A-grid).
70      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
71        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
72    o pkg/exf:
73      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
74      EXF_INTERPOLATION:
75      - merge global_with_exf/code version of exf_interp_read.F
76        to the main code ;
77      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
78        reading the file ; Important: This options needs to be defined to recover
79        previous code.
80        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
81      - no longer loose real*8 precision along the way when using exf_iprec=64.
82    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
83      - change discretisation of evp-solver in order to avoid another exchange
84        (changes lab_sea) and clean up a little
85      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
86        help the adjoint (this also changes the results slightly)
87      - add a few "_d 0" where they had been missing in seaice_evp.F
88      - cleaning up: remove unused seaice_calc_rhs.F
89    o pkg/exf: some cleaning-up:
90      - change various "constants" into runtime parameters
91      - cleaned-up Large&Yeager04 routine which should eventually
92        replace exf_bulkformulae.F (changed names of S/R and CPP)
93        and merged various ALLOW_ATM_WIND options
94     only used with thsice pkg (in thsice_get_exf.F):
95      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
96        which are used when useStabilityFct_overIce=TRUE (= the default)
97      - change default values of ice & snow emissivity and scale downward LW
98        by ice & snow emissivity.
99    o pkg/thsice:
100     fix few little problems, in thsice_calc_thickn.F:
101      - growth vertically (and not laterally) if iceFrac == iceMaskMax
102      - melt only laterally if hIce < hThinIce (as the comments say)
103      and in thsice_extend.F:
104      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
105      - start to form ice as soon as the minimum ice-volume is reachable.
106     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
107      and cpl_aim+ocn
108    o pkg/kpp
109     - move computation of surface related input fields to KPP into a new
110       subroutine kpp_forcing_surf.F
111     - remove wrong (within bi,bj loops) EXCH calls.
112     - little cleaning (add argument myThid in last position, cvs header ...)
113     - for now, fix conservation problem by exchanging KPPviscAz (may not
114       be the best fix)
115    o pkg/seaice
116     - check for inconsistent evp parameter/cpp-flag combination
117     - remove leftover errIO flat for obsolete name list error handling
118    o OpenAD
119     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
120    
121    checkpoint59a
122    o pkg/seaice: some parameter clarifications and a little bit of clean up
123    o pkg/thsice: rename run-time parameters:
124       himin       -> hIceMin
125       himin0      -> hThinIce
126       hihig       -> hThickIce
127       i0          -> i0swFrac
128       transCoef   -> bMeltCoef
129       frac_energy -> fracMelting
130      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
131       with default values (for now) that do not change the results.
132      remove old version of thsice vars advection in pkg/seaice.
133    o in FFIELDS.h:
134      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
135      - make pLoad & sIceLoad always available (but still only used if
136         ATMOSPHERIC_LOADING is #define).
137    o pkg/kpp: replaced _KPP_RL with _RL
138    o bug fixes for vertical diffusivity computations when both KPP and
139        3D diffusivity arrays are used.
140    o pkg/seaice: fix bug in evp solver, while doing that
141      - change (improve?) discretization of stress computations for both
142        cgrid-lsr and evp solver
143      - add a new routine to compute strain rates
144      - the above changes lab_sea results
145      - add no slip conditions for evp solver (off by default), lsr-version
146        may follow
147      - fix exchange for shear at Z-points (does not change lab_sea)
148      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
149        (to force the user to pick a time step since there is not "safe" way
150        of choosing it)
151      - add principal stress diagnostics
152      - rearrange fields for evp a little to avoid having to call a: too many
153        exchanges and b: exchanges for stress trensor components which we do
154        not have.
155      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
156        of evp, complete rewrite for lsr case (latter is does not yet work
157        in all cases)
158    o pkg/kpp: add code to have mixing in shelf ice caverns
159      - add myThid to all kpp routines (long overdue)
160    
161    checkpoint59
162    o pkg/exf:
163      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
164        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
165      - move exf header files from lower_case.h to UPPER_CASE.h ;
166        add missing cvs Header & Name
167      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
168      - add namelist param. selectStressGridPosition, exf_monFreq
169      - retire many _CLIM routines, and remove data.exf_clim
170        + params moved to data.exf
171        + climsst, climsss now handled by exf_set_gen, i.e.
172          climss?period=0 refers to constant field,
173          climss?period=-12 to monthly forcing
174      - split up namelists in data.exf
175    o pkg/seaice:
176      - remove seaice_exch and seaice_exch_uv
177      - remove superfluous exchange of theta
178      - add myThid to seaice_budget_ocean/ice
179      - add new interface for atmospheric wind forcing (C-grid only)
180        + new routine
181        + two new field (taux, tauy for stress over ice)
182        + removed one global field (DAIRN) for C-grid case only
183    o pkg/thsise
184      - 2nd set of modifs for thsice adjoint in conjunction with exf
185    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
186    
187    checkpoint58y_post
188    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
189      vertical diffusivity, similar to that in MOM4; turned on using
190      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
191      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
192    o Added capability for 3D specification of background vertical diffusion
193      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
194      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
195      "data" file that contains the 3D vertical diffusivity coefficients.
196    o ice dynamics (pkg/seaice) with thsice thermodynamics:
197      - add code within pkg thsice to advect & diffuse sea-ice fields
198      similar to (and will replace) what has been added in  seaice_advdiff.F,
199      but: - conserving Mass, Heat & Salt.
200           - better when using non-linear advection scheme (not yet fully tested)
201           - can also be used in atmospheric set-up (for now, only the diffusion).
202    
203    checkpoint58x_post
204    o IO option for global-file compact format:
205      - add options when generating topology (utils/exch2/matlab-topology-generator)
206      - add I/O capability (pkg/mdsio).
207      - adapt utils/matlab/rdmds.m to read this format.
208      for now long-line format not yet supported by pkg/mdsio (& exch2).
209    o shelfice: add a few diagnostics
210    
211    checkpoint58w_post
212    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
213      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
214      (and replace horiVertRatio in NH code).
215      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
216                         and tutorial_plume_on_slope (sensitive to truncation)
217    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
218      directly to drive seaice model (C-grid only)
219    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
220     - reintroduce computation of wind from stress,
221     - compute tau (in exf_bulkformulae.F) from windstress averaged to
222       mass points to avoid tau = 0
223     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
224    o rdmnc.m: make it work with "global" files created with gluemnc
225    o rdmnc.m : some improvements in dealing with singleton dimension
226      (tested on all testreport mnc output files).
227    o genmake2: disable pkg/profiles if netcdf test fails.
228    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
229    o move call to cal_readparms up to make calendar parameters/variable available
230      to all packages
231    
232    checkpoint58v_post
233    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
234      useDynP_inEos_Zc tested.
235    o pkg/exf: changes to properly interpolate/mask/scale initial fields
236    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
237      and portions thereof.  See read_cs.txt for description and examples.
238    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
239      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
240      following the great-circle arc between those 2 points.
241    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
242      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
243    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
244     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
245     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
246     - still needs work (not working with some options ; efficiency to improve)
247       and serious testing.
248     - use this scheme for temperature & salinity in 2 advection test exp.:
249       advect_xy & advect_xz, respectively.
250    
251    checkpoint58u_post
252    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
253  o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.  o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
254  o testreport: add option "-skipdir" to skip some test.  o testreport: add option "-skipdir" to skip some test.
255  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent

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