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revision 1.763 by mlosch, Tue Jan 9 13:36:19 2007 UTC revision 1.823 by mlosch, Fri May 25 14:52:27 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      - allow values of SEAICE_elaticParm > 1
9      - make lsr boundary conditions free slip (by default)
10      - add code for no slip boundary conditions for lsr
11      - set minimum of zeta to zero (and not 4e8) (changes results)
12    o change calculation of Visbeck K:
13      - no longer depend on tapering scheme; instead, compute slope (limited
14        by GM_maxSlope). this is equivalent to what was comuted before with
15        clipping or linear tappering.
16      - fix vertical averaging (wrong by 1 level)
17      - leave the old version (but will not be maintained) within
18        #ifdef OLD_VISBECK_CALC / #endif
19    o change error catch in calc_r_star to improve vectorization
20    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
21      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
22    
23    checkpoint59b
24    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
25      - export/import (between ocean & coupler) fields needed for ocean DIC.
26    o pkg/seaice:
27      - get rid of three more exchanges seaice_calc_viscosities (required
28        different loop boundaries in seaice_lsr and seaice_ocean_stress)
29      - bug fix in seaice_ocean_stress (update of lab_sea required)
30      - reduce loop boundaries to necessary minimum also in seaice_evp
31      - go back to the old way of computing deltaC/Z as the adjoint likes that
32        better
33    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
34      passive tracer to an Age Tracer) + update output.txt
35    o pkg/exf:
36      - implement A-grid / C-grid selection for wind-stress input files.
37      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
38      for now, in exf_bulk_largeyeager04.F only :
39      - change implementation for case where windspeed + 2. components wind-stress
40        are read-in. AND use rhoConstFresh to convert evap.
41    o pkg/seaice:
42      - use correct EXCH_UV for wind-forcing (on A-grid).
43      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
44        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
45    o pkg/exf:
46      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
47      EXF_INTERPOLATION:
48      - merge global_with_exf/code version of exf_interp_read.F
49        to the main code ;
50      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
51        reading the file ; Important: This options needs to be defined to recover
52        previous code.
53        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
54      - no longer loose real*8 precision along the way when using exf_iprec=64.
55    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
56      - change discretisation of evp-solver in order to avoid another exchange
57        (changes lab_sea) and clean up a little
58      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
59        help the adjoint (this also changes the results slightly)
60      - add a few "_d 0" where they had been missing in seaice_evp.F
61      - cleaning up: remove unused seaice_calc_rhs.F
62    o pkg/exf: some cleaning-up:
63      - change various "constants" into runtime parameters
64      - cleaned-up Large&Yeager04 routine which should eventually
65        replace exf_bulkformulae.F (changed names of S/R and CPP)
66        and merged various ALLOW_ATM_WIND options
67     only used with thsice pkg (in thsice_get_exf.F):
68      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
69        which are used when useStabilityFct_overIce=TRUE (= the default)
70      - change default values of ice & snow emissivity and scale downward LW
71        by ice & snow emissivity.
72    o pkg/thsice:
73     fix few little problems, in thsice_calc_thickn.F:
74      - growth vertically (and not laterally) if iceFrac == iceMaskMax
75      - melt laterally only if hIce < hThinIce (as the comments say)
76      and in thsice_extend.F:
77      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
78      - start to form ice as soon as the minimum ice-volume is reachable.
79     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
80      and cpl_aim+ocn
81    o pkg/kpp
82     - move computation of surface related input fields to KPP into a new
83       subroutine kpp_forcing_surf.F
84     - remove wrong (within bi,bj loops) EXCH calls.
85     - little cleaning (add argument myThid in last position, cvs header ...)
86     - for now, fix conservation problem by exchanging KPPviscAz (may not
87       be the best fix)
88    o pkg/seaice
89     - check for inconsistent evp parameter/cpp-flag combination
90     - remove leftover errIO flat for obsolete name list error handling
91    o OpenAD
92     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
93    
94    checkpoint59a
95    o pkg/seaice: some parameter clarifications and a little bit of clean up
96    o pkg/thsice: rename run-time parameters:
97       himin       -> hIceMin
98       himin0      -> hThinIce
99       hihig       -> hThickIce
100       i0          -> i0swFrac
101       transCoef   -> bMeltCoef
102       frac_energy -> fracMelting
103      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
104       with default values (for now) that do not change the results.
105      remove old version of thsice vars advection in pkg/seaice.
106    o in FFIELDS.h:
107      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
108      - make pLoad & sIceLoad always available (but still only used if
109         ATMOSPHERIC_LOADING is #define).
110    o pkg/kpp: replaced _KPP_RL with _RL
111    o bug fixes for vertical diffusivity computations when both KPP and
112        3D diffusivity arrays are used.
113    o pkg/seaice: fix bug in evp solver, while doing that
114      - change (improve?) discretization of stress computations for both
115        cgrid-lsr and evp solver
116      - add a new routine to compute strain rates
117      - the above changes lab_sea results
118      - add no slip conditions for evp solver (off by default), lsr-version
119        may follow
120      - fix exchange for shear at Z-points (does not change lab_sea)
121      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
122        (to force the user to pick a time step since there is not "safe" way
123        of choosing it)
124      - add principal stress diagnostics
125      - rearrange fields for evp a little to avoid having to call a: too many
126        exchanges and b: exchanges for stress trensor components which we do
127        not have.
128      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
129        of evp, complete rewrite for lsr case (latter is does not yet work
130        in all cases)
131    o pkg/kpp: add code to have mixing in shelf ice caverns
132      - add myThid to all kpp routines (long overdue)
133    
134    checkpoint59
135    o pkg/exf:
136      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
137        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
138      - move exf header files from lower_case.h to UPPER_CASE.h ;
139        add missing cvs Header & Name
140      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
141      - add namelist param. selectStressGridPosition, exf_monFreq
142      - retire many _CLIM routines, and remove data.exf_clim
143        + params moved to data.exf
144        + climsst, climsss now handled by exf_set_gen, i.e.
145          climss?period=0 refers to constant field,
146          climss?period=-12 to monthly forcing
147      - split up namelists in data.exf
148    o pkg/seaice:
149      - remove seaice_exch and seaice_exch_uv
150      - remove superfluous exchange of theta
151      - add myThid to seaice_budget_ocean/ice
152      - add new interface for atmospheric wind forcing (C-grid only)
153        + new routine
154        + two new field (taux, tauy for stress over ice)
155        + removed one global field (DAIRN) for C-grid case only
156    o pkg/thsise
157      - 2nd set of modifs for thsice adjoint in conjunction with exf
158    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
159    
160    checkpoint58y_post
161    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
162      vertical diffusivity, similar to that in MOM4; turned on using
163      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
164      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
165    o Added capability for 3D specification of background vertical diffusion
166      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
167      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
168      "data" file that contains the 3D vertical diffusivity coefficients.
169    o ice dynamics (pkg/seaice) with thsice thermodynamics:
170      - add code within pkg thsice to advect & diffuse sea-ice fields
171      similar to (and will replace) what has been added in  seaice_advdiff.F,
172      but: - conserving Mass, Heat & Salt.
173           - better when using non-linear advection scheme (not yet fully tested)
174           - can also be used in atmospheric set-up (for now, only the diffusion).
175    
176    checkpoint58x_post
177    o IO option for global-file compact format:
178      - add options when generating topology (utils/exch2/matlab-topology-generator)
179      - add I/O capability (pkg/mdsio).
180      - adapt utils/matlab/rdmds.m to read this format.
181      for now long-line format not yet supported by pkg/mdsio (& exch2).
182    o shelfice: add a few diagnostics
183    
184    checkpoint58w_post
185    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
186      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
187      (and replace horiVertRatio in NH code).
188      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
189                         and tutorial_plume_on_slope (sensitive to truncation)
190    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
191      directly to drive seaice model (C-grid only)
192    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
193     - reintroduce computation of wind from stress,
194     - compute tau (in exf_bulkformulae.F) from windstress averaged to
195       mass points to avoid tau = 0
196     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
197    o rdmnc.m: make it work with "global" files created with gluemnc
198    o rdmnc.m : some improvements in dealing with singleton dimension
199      (tested on all testreport mnc output files).
200    o genmake2: disable pkg/profiles if netcdf test fails.
201    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
202    o move call to cal_readparms up to make calendar parameters/variable available
203      to all packages
204    
205    checkpoint58v_post
206    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
207      useDynP_inEos_Zc tested.
208    o pkg/exf: changes to properly interpolate/mask/scale initial fields
209    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
210      and portions thereof.  See read_cs.txt for description and examples.
211    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
212      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
213      following the great-circle arc between those 2 points.
214    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
215      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
216    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
217     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
218     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
219     - still needs work (not working with some options ; efficiency to improve)
220       and serious testing.
221     - use this scheme for temperature & salinity in 2 advection test exp.:
222       advect_xy & advect_xz, respectively.
223    
224    checkpoint58u_post
225    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
226    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
227    o testreport: add option "-skipdir" to skip some test.
228    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
229      momentum calculation.
230    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
231    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
232      remove checkpoint.F and the_correction_step.F (no longer used);
233      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
234    o add option (linFSConserveTr) to correct for tracer source/sink due to
235      Linear Free surface
236  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
237  o pkg/thsice: fix reading mnc-pickups  o pkg/thsice: fix reading mnc-pickups
238    

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