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revision 1.600 by jmc, Sun Jan 22 16:49:26 2006 UTC revision 1.677 by mlosch, Wed Jun 14 16:09:00 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/seaice: add parameter that allows to scale/turn off effect of seaice
8      on wind stress (SEAICEstressFactor defaults to 1.)
9    o Total number of Timers is finite (<=40): comment out 2 non-essential one
10      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
11    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
12      on CS-grid: no longer loosing mass.
13    o exf & curvilinear-grid: no longer modify longitude xC & xG.
14    o pkg/ggl90: fix sloppy output and fix a bug
15    o pkg/seaice: added SEAICEuseEVPpickup parameter
16      - Set to false in order to start EVP solver with
17        non-EVP pickup files when using SEAICEuseEVP
18      - fix sign error in diffusion in seaice_calc_rhs
19    
20    checkpoint58h_post
21    * Modifications for bottom topography control
22      o replace hFacC by _hFacC at various places
23      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
24      o add non-self-adjoint cg2d_nsa
25      o update autodiff support routines
26      o re-initialise hfac after ctrl_depth_ini
27      o works for 5x5 box, doesnt work for global_ocean.90x40x15
28    * Adding verification for 5x5 box (4-layer) bottom topography control
29    
30    checkpoint58g_post
31    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
32       used for mean seasonal cycle, mean diurnal cycle); add an example
33       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
34    o pkg/ggl90:
35      - add parameter (minimum surface kinetic energy)
36      - fix bug (avoiding division by zero)
37    o couple pkg/thsice to pkg/seaice:
38      - modify advection in seaice to accomodate new scalar fields to be advected
39      - only muliDimAdection scheme work with seaice/thsice
40      - mapping of thsice-variables to seaice-variables, back and forth
41      - does not break the verification experiments, but does not give the
42        desired results either
43    o pkg/seaice
44      - make (default) second order advection a bit less confusing?
45    
46    checkpoint58f_post
47    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
48      to pkg/seaice):
49      - new routines thsice_map_exf and thsice_get_exf provide the interface
50      - add an additional formal parameter to thsice_solve4temp
51    o pkg/exf:
52      - add new fields wspeed, snowprecip (to be able to couple to thsice)
53      - correct Stefan-Boltzmann constant
54      - new parameter for longwave surface emittance
55      - separate some stuff from exf_bulkformulae into new routines  
56        exf_radiation, exf_wind
57      - add new parameters and constants: longwave emissivity for ocean, ice
58        and snow, evaporation parameters over ice
59      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
60        either wind from stress or stress from wind
61    o pkg/thSIce:
62    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
63    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
64       and THSICE_CALC_THICKN
65    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
66    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
67      to make debugging easier.
68    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
69    o pkg/bulk_force:
70      - clean-up comments and parameters ;
71      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
72    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
73      generate new output for test-experiment: aim.5l_cs.thSI
74    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
75      testreport accordingly
76    
77    checkpoint58e_post
78    o SEAICE_CGRID adjoint done
79    o R_STAR adjoint implemented.
80      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
81      * need to sort out init. of h0facc, etc.
82    o Make pkg/profile fully independent of ecco,cost, etc. stuff
83      to be able to use it in pure forward.
84    
85    checkpoint58d_post
86    o upgrade simple test-experiment to tutorial example:
87     step.1: duplicate the experiment and (step.2) will remove the old copy.
88      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
89      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
90      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
91      tutorial_global_oce_biogeo    <- copy of dic_example
92      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
93      tutorial_plume_on_slope       <- copy of plume_on_slope
94      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
95      tutorial_global_oce_optim     <- empty for now (David ?)
96      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
97     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
98    o correct a sign problem in cost_scat.F
99    o obcs and ptracers: fix boundary conditions for advections schemes
100      with larger stencil
101    o thsice adjoint: start
102    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
103      completeness
104    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
105      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
106    o ptracers adjoint:
107      * avoid extensive recomputatations
108      * fix missing re-init. of gptr (missed by TAF)
109    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
110      me to turn off the excessive output to STDOUT that this package produces
111    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
112      and add those terms in Vector-Invariant formulation.
113    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
114      if the control period (xx_hfluxperiod etc) is 0
115    o in profiles pkg, clean routines and fix details
116    o in ecco pkg, reading ssh data:
117      fix problem in case the model does not start at iter0=0
118    o fix mnc-pickup/restart for ptracers
119    o new package prifiles:
120      code to compute profile-based cost by Gael Forget
121      (modifs in ecco, ctrl, autodiff)
122    o Benign bug fix in initialization (spotted by M. Mazloff) of
123      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
124    
125    checkpoint58c_post
126    o adjoint: finish NLFS adjoint and provide reference output in
127      verification/global_ocean.90x40x15/results_ad_nlfs
128    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
129      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
130      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
131      with SEAICE_CGRID defined.
132    o move calendarDumps from "data" to "data.cal" and clean-up the code
133      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
134    o add useEXF & useCAL flags (for now, set in hard-coded way)
135    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
136      (were missing in NH mode, and wrong in quasihydrostatic mode).
137      waiting for Chris updated version of calc_gw to add those CALLs.
138    o fix bug in quasihydrostatic S/R ;
139      add a test for this option: global_ocean.90x40x15.qshyd
140    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
141      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
142    o add on/off flag useOffLine for package OFFLINE
143    o seaice:
144      - modify advection so that it works also on the C-grid
145      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
146        problem in multi-tile runs with C-grid
147      - add flags for clipping ice velocities and/or masking solver forcing
148      - fix drag (ocean on ice) formulation and a bug that caused noise in the
149        C-grid solver
150      - added a few comments to seaice_diffusion.F
151      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
152        are now exclusive)
153      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
154        required re-ordering the code a little:
155       + make DAIRN global variable (defined in SEAICE)
156       + move computation of the viscosities eta and zeta into a new separate
157         routine (because I need to recompute them in seaice_ocean_stress.F)
158    
159    checkpoint58b_post
160    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
161      update output.txt of exp. aim.5l_cs.thSI
162    o various mnc cleanups and improvements:
163      + shrink lookup tables by factor of ~4
164      + better error reporting when running out of lookup space
165      + able to handle longer path/file names (up to 500 chars)
166    o adjoint:
167      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
168      - TBD: "hidden" mom_vecinv recomp. in dynamics
169    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
170     (allow to differentiate between forcing components using new integer flags:
171      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
172     and add new flag to put Dissipation tendency out of Adams-Bashforth.
173    o ecco
174      - enable trend removal from SSH anomaly obs.
175    o adjoint
176      - a fix for PmEpR when #undef EXACT_CONSERV
177      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
178      - try to fix "hidden" recomp. in forward_step for NLFS
179        (NLFS seems broken sometimes after I checked it in)
180    o seaice:
181     - add c-grid version of the dynamic solver:
182       + three new routines that are the c-grid substitute lsr, dynsolver
183         and ostres
184       + put a few fields that were local to dynsolver into global common
185         blocks, so that I can move the computation of stresses etc into
186         seaice_lsr (saves coding but may break the adjoint).
187     - replace more hardwired parameters by runtime parameters
188     - add ice masks that mask the rhs of the implicit solvers where there
189       is no ice (commented out in seaice_dynsolver, because i am not sure
190       if this works properly), eventually this should replace the clipping
191       of ice velocities in seaice_dynsolver to +/-40cm/s.
192    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
193      include it only where its needed
194    o move balancing of fluxes before the call of external_forcing_surf
195    o seaice:
196      - correct units of turning angles (now they are really in degrees)
197      - move computation of GWATX/Y out of main routine into dynsolver
198      - initialize GWATX/Y in seaice_init
199    o Apply mask on Fresh-Water flux (needed for SSH forcing).
200      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
201    o seaice: add runtime flags for turning angles (default to zero)
202    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
203      and trend from exf forcing and ctrl control adjustments
204    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
205      (since checkpoint57x_post)
206    o change the default rotation period to 86164.s = the Earth rotation
207    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
208      and based on a reference stratification. Tested within hs94.cs-32x32x5.
209    o seaice advection: add code for choosing between the default (2nd order
210      central differences) and multiDim advection schemes provided by
211      pkg/generic_advdiff
212    o seaice:
213      - removed all references to SEAICE_GRID.h fields from
214        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
215        (cubed-sphere configuration will change a little)
216      - grid computations in seaice_init are obsolete now.
217      - cleaned up code a little so that is easier to read (hopefully).
218      - added new (better?) discretizations of default advection and diffusion
219        (turn on with SEAICEuseFluxForm)
220      - replace 1 in 3d global fields by kSurface in growth.F
221      
222    checkpoint58a_post
223    o seaice:
224      - bug fix in advect.F
225    o shelfice:
226      - separate shelfice load anomaly from pload (breaks with time
227        dependent forcing), => introduce constant field shelficeLoadAnomaly.
228        Its default is 0., but it may be computed more cleverly from (unknown)
229        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
230        done offline. A good approximation of the pressure load anomaly is
231        necessary to avoid large initial adjustment processes underneath
232        deep-reaching shelfice.
233      - small fix in ISOMIP shelfice_thermodynamics
234      - add more sophisticated thermodynamics of Hellmer (1989), this is
235        now the default
236      - give a few constants more intuitive names
237    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
238      if bulk formulae are used in long integration (especially EmPmR). Turn
239      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
240      if balancePrintMean, the imbalance that is substracted is printed to
241      STDOUT.
242    o fix bug (typo) in obcs_apply_eta.F
243    o add a new package shelfice which enables us to model the circulation
244      underneath shelf-ice with draughts of hundreds of meters.
245     - works
246     - to do: + include improved thermodynamics
247              + check whether kSurfC (from model/inc/SURFACE.h) can be used
248                instead of new field kTopC
249              + can we use topoFile, Ro_surf and existing code in ini_depth.F
250                instead of new field R_shelfIce and new code in ini_depth.F
251                and ini_mask_etc.F?
252              + adjust vertical mixing schemes?
253    o seaice pkg:
254     - add a cpp-flag to include a simple formula for a salinity dependent
255       freezing point of sea water at the surface
256     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
257       meridional stresses are now different (and hopefully correct)
258    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
259       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
260       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
261    o pkg/diagnostics: add options and parameters for regional-statistics
262       diagnostics ; define regions by reading a region-mask from a file
263       (might add other options later)
264  o pkg/bulk_force:  o pkg/bulk_force:
265   - add option and parameters to use AIM surface-flux formulae.   - add option and parameters to use AIM surface-flux formulae.
266   - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;   - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;

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