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revision 1.598 by edhill, Wed Jan 11 06:04:11 2006 UTC revision 1.684 by jmc, Tue Jun 20 21:20:25 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 make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
8    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
9    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
10       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
11    o tracer advection:
12     - clean-up and simplify calc_common_factors.F
13     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
14       advection subroutine (but still not used within DST advection S/R)
15    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
16    
17    checkpoint58j_post
18    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
19      from file (collects calls previously in FORWARD_STEP)
20    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
21    o adjoint store dir. adjusted accordingly
22    o genmake2
23      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
24    
25    checkpoint58i_post
26    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
27      on wind stress (SEAICEstressFactor defaults to 1.)
28    o Total number of Timers is finite (<=40): comment out 2 non-essential one
29      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
30    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
31      on CS-grid: no longer loosing mass.
32    o exf & curvilinear-grid: no longer modify longitude xC & xG.
33    o pkg/ggl90: fix sloppy output and fix a bug
34    o pkg/seaice: added SEAICEuseEVPpickup parameter
35      - Set to false in order to start EVP solver with
36        non-EVP pickup files when using SEAICEuseEVP
37      - fix sign error in diffusion in seaice_calc_rhs
38    
39    checkpoint58h_post
40    * Modifications for bottom topography control
41      o replace hFacC by _hFacC at various places
42      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
43      o add non-self-adjoint cg2d_nsa
44      o update autodiff support routines
45      o re-initialise hfac after ctrl_depth_ini
46      o works for 5x5 box, doesnt work for global_ocean.90x40x15
47    * Adding verification for 5x5 box (4-layer) bottom topography control
48    
49    checkpoint58g_post
50    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
51       used for mean seasonal cycle, mean diurnal cycle); add an example
52       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
53    o pkg/ggl90:
54      - add parameter (minimum surface kinetic energy)
55      - fix bug (avoiding division by zero)
56    o couple pkg/thsice to pkg/seaice:
57      - modify advection in seaice to accomodate new scalar fields to be advected
58      - only muliDimAdection scheme work with seaice/thsice
59      - mapping of thsice-variables to seaice-variables, back and forth
60      - does not break the verification experiments, but does not give the
61        desired results either
62    o pkg/seaice
63      - make (default) second order advection a bit less confusing?
64    
65    checkpoint58f_post
66    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
67      to pkg/seaice):
68      - new routines thsice_map_exf and thsice_get_exf provide the interface
69      - add an additional formal parameter to thsice_solve4temp
70    o pkg/exf:
71      - add new fields wspeed, snowprecip (to be able to couple to thsice)
72      - correct Stefan-Boltzmann constant
73      - new parameter for longwave surface emittance
74      - separate some stuff from exf_bulkformulae into new routines  
75        exf_radiation, exf_wind
76      - add new parameters and constants: longwave emissivity for ocean, ice
77        and snow, evaporation parameters over ice
78      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
79        either wind from stress or stress from wind
80    o pkg/thSIce:
81    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
82    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
83       and THSICE_CALC_THICKN
84    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
85    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
86      to make debugging easier.
87    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
88    o pkg/bulk_force:
89      - clean-up comments and parameters ;
90      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
91    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
92      generate new output for test-experiment: aim.5l_cs.thSI
93    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
94      testreport accordingly
95    
96    checkpoint58e_post
97    o SEAICE_CGRID adjoint done
98    o R_STAR adjoint implemented.
99      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
100      * need to sort out init. of h0facc, etc.
101    o Make pkg/profile fully independent of ecco,cost, etc. stuff
102      to be able to use it in pure forward.
103    
104    checkpoint58d_post
105    o upgrade simple test-experiment to tutorial example:
106     step.1: duplicate the experiment and (step.2) will remove the old copy.
107      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
108      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
109      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
110      tutorial_global_oce_biogeo    <- copy of dic_example
111      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
112      tutorial_plume_on_slope       <- copy of plume_on_slope
113      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
114      tutorial_global_oce_optim     <- empty for now (David ?)
115      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
116     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
117    o correct a sign problem in cost_scat.F
118    o obcs and ptracers: fix boundary conditions for advections schemes
119      with larger stencil
120    o thsice adjoint: start
121    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
122      completeness
123    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
124      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
125    o ptracers adjoint:
126      * avoid extensive recomputatations
127      * fix missing re-init. of gptr (missed by TAF)
128    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
129      me to turn off the excessive output to STDOUT that this package produces
130    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
131      and add those terms in Vector-Invariant formulation.
132    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
133      if the control period (xx_hfluxperiod etc) is 0
134    o in profiles pkg, clean routines and fix details
135    o in ecco pkg, reading ssh data:
136      fix problem in case the model does not start at iter0=0
137    o fix mnc-pickup/restart for ptracers
138    o new package prifiles:
139      code to compute profile-based cost by Gael Forget
140      (modifs in ecco, ctrl, autodiff)
141    o Benign bug fix in initialization (spotted by M. Mazloff) of
142      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
143    
144    checkpoint58c_post
145    o adjoint: finish NLFS adjoint and provide reference output in
146      verification/global_ocean.90x40x15/results_ad_nlfs
147    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
148      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
149      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
150      with SEAICE_CGRID defined.
151    o move calendarDumps from "data" to "data.cal" and clean-up the code
152      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
153    o add useEXF & useCAL flags (for now, set in hard-coded way)
154    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
155      (were missing in NH mode, and wrong in quasihydrostatic mode).
156      waiting for Chris updated version of calc_gw to add those CALLs.
157    o fix bug in quasihydrostatic S/R ;
158      add a test for this option: global_ocean.90x40x15.qshyd
159    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
160      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
161    o add on/off flag useOffLine for package OFFLINE
162    o seaice:
163      - modify advection so that it works also on the C-grid
164      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
165        problem in multi-tile runs with C-grid
166      - add flags for clipping ice velocities and/or masking solver forcing
167      - fix drag (ocean on ice) formulation and a bug that caused noise in the
168        C-grid solver
169      - added a few comments to seaice_diffusion.F
170      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
171        are now exclusive)
172      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
173        required re-ordering the code a little:
174       + make DAIRN global variable (defined in SEAICE)
175       + move computation of the viscosities eta and zeta into a new separate
176         routine (because I need to recompute them in seaice_ocean_stress.F)
177    
178    checkpoint58b_post
179    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
180      update output.txt of exp. aim.5l_cs.thSI
181    o various mnc cleanups and improvements:
182      + shrink lookup tables by factor of ~4
183      + better error reporting when running out of lookup space
184      + able to handle longer path/file names (up to 500 chars)
185    o adjoint:
186      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
187      - TBD: "hidden" mom_vecinv recomp. in dynamics
188    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
189     (allow to differentiate between forcing components using new integer flags:
190      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
191     and add new flag to put Dissipation tendency out of Adams-Bashforth.
192    o ecco
193      - enable trend removal from SSH anomaly obs.
194    o adjoint
195      - a fix for PmEpR when #undef EXACT_CONSERV
196      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
197      - try to fix "hidden" recomp. in forward_step for NLFS
198        (NLFS seems broken sometimes after I checked it in)
199    o seaice:
200     - add c-grid version of the dynamic solver:
201       + three new routines that are the c-grid substitute lsr, dynsolver
202         and ostres
203       + put a few fields that were local to dynsolver into global common
204         blocks, so that I can move the computation of stresses etc into
205         seaice_lsr (saves coding but may break the adjoint).
206     - replace more hardwired parameters by runtime parameters
207     - add ice masks that mask the rhs of the implicit solvers where there
208       is no ice (commented out in seaice_dynsolver, because i am not sure
209       if this works properly), eventually this should replace the clipping
210       of ice velocities in seaice_dynsolver to +/-40cm/s.
211    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
212      include it only where its needed
213    o move balancing of fluxes before the call of external_forcing_surf
214    o seaice:
215      - correct units of turning angles (now they are really in degrees)
216      - move computation of GWATX/Y out of main routine into dynsolver
217      - initialize GWATX/Y in seaice_init
218    o Apply mask on Fresh-Water flux (needed for SSH forcing).
219      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
220    o seaice: add runtime flags for turning angles (default to zero)
221    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
222      and trend from exf forcing and ctrl control adjustments
223    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
224      (since checkpoint57x_post)
225    o change the default rotation period to 86164.s = the Earth rotation
226    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
227      and based on a reference stratification. Tested within hs94.cs-32x32x5.
228    o seaice advection: add code for choosing between the default (2nd order
229      central differences) and multiDim advection schemes provided by
230      pkg/generic_advdiff
231    o seaice:
232      - removed all references to SEAICE_GRID.h fields from
233        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
234        (cubed-sphere configuration will change a little)
235      - grid computations in seaice_init are obsolete now.
236      - cleaned up code a little so that is easier to read (hopefully).
237      - added new (better?) discretizations of default advection and diffusion
238        (turn on with SEAICEuseFluxForm)
239      - replace 1 in 3d global fields by kSurface in growth.F
240      
241    checkpoint58a_post
242    o seaice:
243      - bug fix in advect.F
244    o shelfice:
245      - separate shelfice load anomaly from pload (breaks with time
246        dependent forcing), => introduce constant field shelficeLoadAnomaly.
247        Its default is 0., but it may be computed more cleverly from (unknown)
248        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
249        done offline. A good approximation of the pressure load anomaly is
250        necessary to avoid large initial adjustment processes underneath
251        deep-reaching shelfice.
252      - small fix in ISOMIP shelfice_thermodynamics
253      - add more sophisticated thermodynamics of Hellmer (1989), this is
254        now the default
255      - give a few constants more intuitive names
256    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
257      if bulk formulae are used in long integration (especially EmPmR). Turn
258      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
259      if balancePrintMean, the imbalance that is substracted is printed to
260      STDOUT.
261    o fix bug (typo) in obcs_apply_eta.F
262    o add a new package shelfice which enables us to model the circulation
263      underneath shelf-ice with draughts of hundreds of meters.
264     - works
265     - to do: + include improved thermodynamics
266              + check whether kSurfC (from model/inc/SURFACE.h) can be used
267                instead of new field kTopC
268              + can we use topoFile, Ro_surf and existing code in ini_depth.F
269                instead of new field R_shelfIce and new code in ini_depth.F
270                and ini_mask_etc.F?
271              + adjust vertical mixing schemes?
272    o seaice pkg:
273     - add a cpp-flag to include a simple formula for a salinity dependent
274       freezing point of sea water at the surface
275     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
276       meridional stresses are now different (and hopefully correct)
277    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
278       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
279       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
280    o pkg/diagnostics: add options and parameters for regional-statistics
281       diagnostics ; define regions by reading a region-mask from a file
282       (might add other options later)
283    o pkg/bulk_force:
284     - add option and parameters to use AIM surface-flux formulae.
285     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
286       others forcing fields (defined in PARM05, parameter file "data") are loaded
287       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
288     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
289     - use the right EXCH call for uwind,vwind (to work on CS-grid).
290     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
291       and parameters (note: calcWindStress replaces .NOT.readwindstress).
292     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
293    
294    checkpoint58
295  o add "--embed-source" option to genmake2 which, when the supporting  o add "--embed-source" option to genmake2 which, when the supporting
296    tools can be compiled (as determined by genmake2) will turn on the    tools can be compiled (as determined by genmake2) will turn on the
297    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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