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revision 1.598 by edhill, Wed Jan 11 06:04:11 2006 UTC revision 1.689 by jmc, Mon Jun 26 00:16:54 2006 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/diagnostics: (diagnostics_main_init.F)
8      define title of isomorphic variables according to the current config.
9    o pkg/thsice with pkg/seaice dynamics:
10    - fix domain of computation (interior only, required for exf) and do exchanges
11    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
12    o towards a standard way of dealing with multi-threading in MONITOR
13      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
14    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
15       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
16    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
17    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
18    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
19       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
20    o tracer advection:
21     - clean-up and simplify calc_common_factors.F
22     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
23       advection subroutine (but still not used within DST advection S/R)
24    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
25    
26    checkpoint58j_post
27    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
28      from file (collects calls previously in FORWARD_STEP)
29    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
30    o adjoint store dir. adjusted accordingly
31    o genmake2
32      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
33    
34    checkpoint58i_post
35    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
36      on wind stress (SEAICEstressFactor defaults to 1.)
37    o Total number of Timers is finite (<=40): comment out 2 non-essential one
38      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
39    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
40      on CS-grid: no longer loosing mass.
41    o exf & curvilinear-grid: no longer modify longitude xC & xG.
42    o pkg/ggl90: fix sloppy output and fix a bug
43    o pkg/seaice: added SEAICEuseEVPpickup parameter
44      - Set to false in order to start EVP solver with
45        non-EVP pickup files when using SEAICEuseEVP
46      - fix sign error in diffusion in seaice_calc_rhs
47    
48    checkpoint58h_post
49    * Modifications for bottom topography control
50      o replace hFacC by _hFacC at various places
51      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
52      o add non-self-adjoint cg2d_nsa
53      o update autodiff support routines
54      o re-initialise hfac after ctrl_depth_ini
55      o works for 5x5 box, doesnt work for global_ocean.90x40x15
56    * Adding verification for 5x5 box (4-layer) bottom topography control
57    
58    checkpoint58g_post
59    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
60       used for mean seasonal cycle, mean diurnal cycle); add an example
61       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
62    o pkg/ggl90:
63      - add parameter (minimum surface kinetic energy)
64      - fix bug (avoiding division by zero)
65    o couple pkg/thsice to pkg/seaice:
66      - modify advection in seaice to accomodate new scalar fields to be advected
67      - only muliDimAdection scheme work with seaice/thsice
68      - mapping of thsice-variables to seaice-variables, back and forth
69      - does not break the verification experiments, but does not give the
70        desired results either
71    o pkg/seaice
72      - make (default) second order advection a bit less confusing?
73    
74    checkpoint58f_post
75    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
76      to pkg/seaice):
77      - new routines thsice_map_exf and thsice_get_exf provide the interface
78      - add an additional formal parameter to thsice_solve4temp
79    o pkg/exf:
80      - add new fields wspeed, snowprecip (to be able to couple to thsice)
81      - correct Stefan-Boltzmann constant
82      - new parameter for longwave surface emittance
83      - separate some stuff from exf_bulkformulae into new routines  
84        exf_radiation, exf_wind
85      - add new parameters and constants: longwave emissivity for ocean, ice
86        and snow, evaporation parameters over ice
87      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
88        either wind from stress or stress from wind
89    o pkg/thSIce:
90    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
91    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
92       and THSICE_CALC_THICKN
93    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
94    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
95      to make debugging easier.
96    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
97    o pkg/bulk_force:
98      - clean-up comments and parameters ;
99      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
100    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
101      generate new output for test-experiment: aim.5l_cs.thSI
102    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
103      testreport accordingly
104    
105    checkpoint58e_post
106    o SEAICE_CGRID adjoint done
107    o R_STAR adjoint implemented.
108      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
109      * need to sort out init. of h0facc, etc.
110    o Make pkg/profile fully independent of ecco,cost, etc. stuff
111      to be able to use it in pure forward.
112    
113    checkpoint58d_post
114    o upgrade simple test-experiment to tutorial example:
115     step.1: duplicate the experiment and (step.2) will remove the old copy.
116      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
117      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
118      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
119      tutorial_global_oce_biogeo    <- copy of dic_example
120      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
121      tutorial_plume_on_slope       <- copy of plume_on_slope
122      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
123      tutorial_global_oce_optim     <- empty for now (David ?)
124      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
125     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
126    o correct a sign problem in cost_scat.F
127    o obcs and ptracers: fix boundary conditions for advections schemes
128      with larger stencil
129    o thsice adjoint: start
130    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
131      completeness
132    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
133      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
134    o ptracers adjoint:
135      * avoid extensive recomputatations
136      * fix missing re-init. of gptr (missed by TAF)
137    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
138      me to turn off the excessive output to STDOUT that this package produces
139    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
140      and add those terms in Vector-Invariant formulation.
141    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
142      if the control period (xx_hfluxperiod etc) is 0
143    o in profiles pkg, clean routines and fix details
144    o in ecco pkg, reading ssh data:
145      fix problem in case the model does not start at iter0=0
146    o fix mnc-pickup/restart for ptracers
147    o new package prifiles:
148      code to compute profile-based cost by Gael Forget
149      (modifs in ecco, ctrl, autodiff)
150    o Benign bug fix in initialization (spotted by M. Mazloff) of
151      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
152    
153    checkpoint58c_post
154    o adjoint: finish NLFS adjoint and provide reference output in
155      verification/global_ocean.90x40x15/results_ad_nlfs
156    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
157      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
158      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
159      with SEAICE_CGRID defined.
160    o move calendarDumps from "data" to "data.cal" and clean-up the code
161      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
162    o add useEXF & useCAL flags (for now, set in hard-coded way)
163    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
164      (were missing in NH mode, and wrong in quasihydrostatic mode).
165      waiting for Chris updated version of calc_gw to add those CALLs.
166    o fix bug in quasihydrostatic S/R ;
167      add a test for this option: global_ocean.90x40x15.qshyd
168    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
169      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
170    o add on/off flag useOffLine for package OFFLINE
171    o seaice:
172      - modify advection so that it works also on the C-grid
173      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
174        problem in multi-tile runs with C-grid
175      - add flags for clipping ice velocities and/or masking solver forcing
176      - fix drag (ocean on ice) formulation and a bug that caused noise in the
177        C-grid solver
178      - added a few comments to seaice_diffusion.F
179      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
180        are now exclusive)
181      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
182        required re-ordering the code a little:
183       + make DAIRN global variable (defined in SEAICE)
184       + move computation of the viscosities eta and zeta into a new separate
185         routine (because I need to recompute them in seaice_ocean_stress.F)
186    
187    checkpoint58b_post
188    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
189      update output.txt of exp. aim.5l_cs.thSI
190    o various mnc cleanups and improvements:
191      + shrink lookup tables by factor of ~4
192      + better error reporting when running out of lookup space
193      + able to handle longer path/file names (up to 500 chars)
194    o adjoint:
195      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
196      - TBD: "hidden" mom_vecinv recomp. in dynamics
197    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
198     (allow to differentiate between forcing components using new integer flags:
199      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
200     and add new flag to put Dissipation tendency out of Adams-Bashforth.
201    o ecco
202      - enable trend removal from SSH anomaly obs.
203    o adjoint
204      - a fix for PmEpR when #undef EXACT_CONSERV
205      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
206      - try to fix "hidden" recomp. in forward_step for NLFS
207        (NLFS seems broken sometimes after I checked it in)
208    o seaice:
209     - add c-grid version of the dynamic solver:
210       + three new routines that are the c-grid substitute lsr, dynsolver
211         and ostres
212       + put a few fields that were local to dynsolver into global common
213         blocks, so that I can move the computation of stresses etc into
214         seaice_lsr (saves coding but may break the adjoint).
215     - replace more hardwired parameters by runtime parameters
216     - add ice masks that mask the rhs of the implicit solvers where there
217       is no ice (commented out in seaice_dynsolver, because i am not sure
218       if this works properly), eventually this should replace the clipping
219       of ice velocities in seaice_dynsolver to +/-40cm/s.
220    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
221      include it only where its needed
222    o move balancing of fluxes before the call of external_forcing_surf
223    o seaice:
224      - correct units of turning angles (now they are really in degrees)
225      - move computation of GWATX/Y out of main routine into dynsolver
226      - initialize GWATX/Y in seaice_init
227    o Apply mask on Fresh-Water flux (needed for SSH forcing).
228      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
229    o seaice: add runtime flags for turning angles (default to zero)
230    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
231      and trend from exf forcing and ctrl control adjustments
232    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
233      (since checkpoint57x_post)
234    o change the default rotation period to 86164.s = the Earth rotation
235    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
236      and based on a reference stratification. Tested within hs94.cs-32x32x5.
237    o seaice advection: add code for choosing between the default (2nd order
238      central differences) and multiDim advection schemes provided by
239      pkg/generic_advdiff
240    o seaice:
241      - removed all references to SEAICE_GRID.h fields from
242        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
243        (cubed-sphere configuration will change a little)
244      - grid computations in seaice_init are obsolete now.
245      - cleaned up code a little so that is easier to read (hopefully).
246      - added new (better?) discretizations of default advection and diffusion
247        (turn on with SEAICEuseFluxForm)
248      - replace 1 in 3d global fields by kSurface in growth.F
249      
250    checkpoint58a_post
251    o seaice:
252      - bug fix in advect.F
253    o shelfice:
254      - separate shelfice load anomaly from pload (breaks with time
255        dependent forcing), => introduce constant field shelficeLoadAnomaly.
256        Its default is 0., but it may be computed more cleverly from (unknown)
257        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
258        done offline. A good approximation of the pressure load anomaly is
259        necessary to avoid large initial adjustment processes underneath
260        deep-reaching shelfice.
261      - small fix in ISOMIP shelfice_thermodynamics
262      - add more sophisticated thermodynamics of Hellmer (1989), this is
263        now the default
264      - give a few constants more intuitive names
265    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
266      if bulk formulae are used in long integration (especially EmPmR). Turn
267      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
268      if balancePrintMean, the imbalance that is substracted is printed to
269      STDOUT.
270    o fix bug (typo) in obcs_apply_eta.F
271    o add a new package shelfice which enables us to model the circulation
272      underneath shelf-ice with draughts of hundreds of meters.
273     - works
274     - to do: + include improved thermodynamics
275              + check whether kSurfC (from model/inc/SURFACE.h) can be used
276                instead of new field kTopC
277              + can we use topoFile, Ro_surf and existing code in ini_depth.F
278                instead of new field R_shelfIce and new code in ini_depth.F
279                and ini_mask_etc.F?
280              + adjust vertical mixing schemes?
281    o seaice pkg:
282     - add a cpp-flag to include a simple formula for a salinity dependent
283       freezing point of sea water at the surface
284     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
285       meridional stresses are now different (and hopefully correct)
286    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
287       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
288       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
289    o pkg/diagnostics: add options and parameters for regional-statistics
290       diagnostics ; define regions by reading a region-mask from a file
291       (might add other options later)
292    o pkg/bulk_force:
293     - add option and parameters to use AIM surface-flux formulae.
294     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
295       others forcing fields (defined in PARM05, parameter file "data") are loaded
296       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
297     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
298     - use the right EXCH call for uwind,vwind (to work on CS-grid).
299     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
300       and parameters (note: calcWindStress replaces .NOT.readwindstress).
301     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
302    
303    checkpoint58
304  o add "--embed-source" option to genmake2 which, when the supporting  o add "--embed-source" option to genmake2 which, when the supporting
305    tools can be compiled (as determined by genmake2) will turn on the    tools can be compiled (as determined by genmake2) will turn on the
306    embed_files package which then embeds the entire MITgcm source code    embed_files package which then embeds the entire MITgcm source code

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