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revision 1.765 by jmc, Fri Jan 12 19:18:24 2007 UTC revision 1.839 by mlosch, Tue Jun 19 12:39:54 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     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
9     - fix bug in metric terms of u-equation in LSR solver (implicit part),
10       changes verification/lab_sea
11     - rearrange implicit part of u-equation in LSR solver to make it easier to
12       read, understand, and debug. This causes changes at the truncation level.
13     - fix (serious) bug in the boundary conditions (sign error in the implicit
14       part) of the LSR solver. Changes all LSR results.
15    o pkg/smooth: addition to model/src and pkg/ctrl so allow
16     initialization of pkg/smooth and application to control vector
17    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
18    o dependencies: pkg/profiles requires pkg/cal
19    o pkg/profiles:
20     - added option ALLOW_PROFILES_GENERICGRID
21         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
22         that interpolation information (grid points and coefficients) is provided
23         within the netcdf input files.
24         -> sample matlab scripts can be found in MITgcm_contrib/gael
25         that allow you to prepare netcdf input files.
26     - also modified: cleaner include statements, cleaner error print statements,
27       cleaner stops when error, and more tests of the netcdf input files consistency.
28    
29    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
30    o pkg/seaice:
31     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
32       requires a new routine: seaice_diagnostics_fill.F
33     - make sure that seaice does not move if not forced (pressure replacement
34       method, Hibler and Ip, 1995), changes results
35     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
36     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
37       It is turned off by default (=-1.), because it changes the results.
38     - make it possible to read AREA from a file, too.
39    
40    checkpoint59c
41    o add S/R and diagnostics for oceanic mixed-layer depth
42    o move GMRedi call after all vertical mixing schemes (including KPP)
43    o pkg/thsice:
44     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
45      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
46    o pkg/obcs:
47     - bug fix for balance code
48    o pkg/seaice:
49      - allow values of SEAICE_elasticParm > 1
50      - add new parameter SEAICE_evpTauRelax as an alternative
51        to SEAICE_elasticParm
52      - make lsr boundary conditions free slip (by default), changes result
53      - add code for no slip boundary conditions for lsr
54      - set minimum of zeta to zero (and not 4e8) (changes results)
55      - add a cap on AREA after advecting AREA if seaice_growth is not called
56    o change calculation of Visbeck K:
57      - no longer depend on tapering scheme; instead, compute slope (limited
58        by GM_maxSlope). this is equivalent to what was comuted before with
59        clipping or linear tappering.
60      - fix vertical averaging (wrong by 1/2 level)
61      - leave the old version (but will not be maintained) within
62        #ifdef OLD_VISBECK_CALC / #endif
63      - update output of exp. ideal_2D_oce
64    o change error catch in calc_r_star to improve vectorization
65    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
66      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
67    o adjoint:
68      Re-organized adjoint checkpointing according to Matt Mazloff
69      (but with modifs/completions/cleanups)
70      Storing is now bundled into large arrays to optimized I/O
71      (and second step in cleanup of the_main_loop)
72    
73    checkpoint59b
74    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
75      - export/import (between ocean & coupler) fields needed for ocean DIC.
76    o pkg/seaice:
77      - get rid of three more exchanges seaice_calc_viscosities (required
78        different loop boundaries in seaice_lsr and seaice_ocean_stress)
79      - bug fix in seaice_ocean_stress (update of lab_sea required)
80      - reduce loop boundaries to necessary minimum also in seaice_evp
81      - go back to the old way of computing deltaC/Z as the adjoint likes that
82        better
83    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
84      passive tracer to an Age Tracer) + update output.txt
85    o pkg/exf:
86      - implement A-grid / C-grid selection for wind-stress input files.
87      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
88      for now, in exf_bulk_largeyeager04.F only :
89      - change implementation for case where windspeed + 2. components wind-stress
90        are read-in. AND use rhoConstFresh to convert evap.
91    o pkg/seaice:
92      - use correct EXCH_UV for wind-forcing (on A-grid).
93      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
94        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
95    o pkg/exf:
96      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
97      EXF_INTERPOLATION:
98      - merge global_with_exf/code version of exf_interp_read.F
99        to the main code ;
100      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
101        reading the file ; Important: This options needs to be defined to recover
102        previous code.
103        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
104      - no longer loose real*8 precision along the way when using exf_iprec=64.
105    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
106      - change discretisation of evp-solver in order to avoid another exchange
107        (changes lab_sea) and clean up a little
108      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
109        help the adjoint (this also changes the results slightly)
110      - add a few "_d 0" where they had been missing in seaice_evp.F
111      - cleaning up: remove unused seaice_calc_rhs.F
112    o pkg/exf: some cleaning-up:
113      - change various "constants" into runtime parameters
114      - cleaned-up Large&Yeager04 routine which should eventually
115        replace exf_bulkformulae.F (changed names of S/R and CPP)
116        and merged various ALLOW_ATM_WIND options
117     only used with thsice pkg (in thsice_get_exf.F):
118      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
119        which are used when useStabilityFct_overIce=TRUE (= the default)
120      - change default values of ice & snow emissivity and scale downward LW
121        by ice & snow emissivity.
122    o pkg/thsice:
123     fix few little problems, in thsice_calc_thickn.F:
124      - growth vertically (and not laterally) if iceFrac == iceMaskMax
125      - melt only laterally if hIce < hThinIce (as the comments say)
126      and in thsice_extend.F:
127      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
128      - start to form ice as soon as the minimum ice-volume is reachable.
129     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
130      and cpl_aim+ocn
131    o pkg/kpp
132     - move computation of surface related input fields to KPP into a new
133       subroutine kpp_forcing_surf.F
134     - remove wrong (within bi,bj loops) EXCH calls.
135     - little cleaning (add argument myThid in last position, cvs header ...)
136     - for now, fix conservation problem by exchanging KPPviscAz (may not
137       be the best fix)
138    o pkg/seaice
139     - check for inconsistent evp parameter/cpp-flag combination
140     - remove leftover errIO flat for obsolete name list error handling
141    o OpenAD
142     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
143    
144    checkpoint59a
145    o pkg/seaice: some parameter clarifications and a little bit of clean up
146    o pkg/thsice: rename run-time parameters:
147       himin       -> hIceMin
148       himin0      -> hThinIce
149       hihig       -> hThickIce
150       i0          -> i0swFrac
151       transCoef   -> bMeltCoef
152       frac_energy -> fracMelting
153      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
154       with default values (for now) that do not change the results.
155      remove old version of thsice vars advection in pkg/seaice.
156    o in FFIELDS.h:
157      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
158      - make pLoad & sIceLoad always available (but still only used if
159         ATMOSPHERIC_LOADING is #define).
160    o pkg/kpp: replaced _KPP_RL with _RL
161    o bug fixes for vertical diffusivity computations when both KPP and
162        3D diffusivity arrays are used.
163    o pkg/seaice: fix bug in evp solver, while doing that
164      - change (improve?) discretization of stress computations for both
165        cgrid-lsr and evp solver
166      - add a new routine to compute strain rates
167      - the above changes lab_sea results
168      - add no slip conditions for evp solver (off by default), lsr-version
169        may follow
170      - fix exchange for shear at Z-points (does not change lab_sea)
171      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
172        (to force the user to pick a time step since there is not "safe" way
173        of choosing it)
174      - add principal stress diagnostics
175      - rearrange fields for evp a little to avoid having to call a: too many
176        exchanges and b: exchanges for stress trensor components which we do
177        not have.
178      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
179        of evp, complete rewrite for lsr case (latter is does not yet work
180        in all cases)
181    o pkg/kpp: add code to have mixing in shelf ice caverns
182      - add myThid to all kpp routines (long overdue)
183    
184    checkpoint59
185    o pkg/exf:
186      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
187        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
188      - move exf header files from lower_case.h to UPPER_CASE.h ;
189        add missing cvs Header & Name
190      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
191      - add namelist param. selectStressGridPosition, exf_monFreq
192      - retire many _CLIM routines, and remove data.exf_clim
193        + params moved to data.exf
194        + climsst, climsss now handled by exf_set_gen, i.e.
195          climss?period=0 refers to constant field,
196          climss?period=-12 to monthly forcing
197      - split up namelists in data.exf
198    o pkg/seaice:
199      - remove seaice_exch and seaice_exch_uv
200      - remove superfluous exchange of theta
201      - add myThid to seaice_budget_ocean/ice
202      - add new interface for atmospheric wind forcing (C-grid only)
203        + new routine
204        + two new field (taux, tauy for stress over ice)
205        + removed one global field (DAIRN) for C-grid case only
206    o pkg/thsise
207      - 2nd set of modifs for thsice adjoint in conjunction with exf
208    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
209    
210    checkpoint58y_post
211    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
212      vertical diffusivity, similar to that in MOM4; turned on using
213      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
214      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
215    o Added capability for 3D specification of background vertical diffusion
216      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
217      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
218      "data" file that contains the 3D vertical diffusivity coefficients.
219    o ice dynamics (pkg/seaice) with thsice thermodynamics:
220      - add code within pkg thsice to advect & diffuse sea-ice fields
221      similar to (and will replace) what has been added in  seaice_advdiff.F,
222      but: - conserving Mass, Heat & Salt.
223           - better when using non-linear advection scheme (not yet fully tested)
224           - can also be used in atmospheric set-up (for now, only the diffusion).
225    
226    checkpoint58x_post
227    o IO option for global-file compact format:
228      - add options when generating topology (utils/exch2/matlab-topology-generator)
229      - add I/O capability (pkg/mdsio).
230      - adapt utils/matlab/rdmds.m to read this format.
231      for now long-line format not yet supported by pkg/mdsio (& exch2).
232    o shelfice: add a few diagnostics
233    
234    checkpoint58w_post
235    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
236      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
237      (and replace horiVertRatio in NH code).
238      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
239                         and tutorial_plume_on_slope (sensitive to truncation)
240    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
241      directly to drive seaice model (C-grid only)
242    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
243     - reintroduce computation of wind from stress,
244     - compute tau (in exf_bulkformulae.F) from windstress averaged to
245       mass points to avoid tau = 0
246     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
247    o rdmnc.m: make it work with "global" files created with gluemnc
248    o rdmnc.m : some improvements in dealing with singleton dimension
249      (tested on all testreport mnc output files).
250    o genmake2: disable pkg/profiles if netcdf test fails.
251    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
252    o move call to cal_readparms up to make calendar parameters/variable available
253      to all packages
254    
255    checkpoint58v_post
256    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
257      useDynP_inEos_Zc tested.
258    o pkg/exf: changes to properly interpolate/mask/scale initial fields
259    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
260      and portions thereof.  See read_cs.txt for description and examples.
261    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
262      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
263      following the great-circle arc between those 2 points.
264    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
265      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
266    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
267     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
268     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
269     - still needs work (not working with some options ; efficiency to improve)
270       and serious testing.
271     - use this scheme for temperature & salinity in 2 advection test exp.:
272       advect_xy & advect_xz, respectively.
273    
274  checkpoint58u_post  checkpoint58u_post
275  o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.  o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
276  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.

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