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revision 1.598 by edhill, Wed Jan 11 06:04:11 2006 UTC revision 1.723 by mlosch, Fri Sep 1 10:17:39 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    
8    o shelfice:
9     - fix a sign error so that no slip at shelfice interface works
10     - remove stop for combination non-hydrostatic code and shelfice. That does
11       not mean, that the results are correct, but at least they are numerically
12       stable
13    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
14    
15    checkpoint58o_post
16    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
17      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
18    o change controling S/R for writing pickup file (new S/R do_write_pickup)
19      and clean-up reading/writing of pickup files.
20    o fix local version of read/write pickup (NH part) in rotating_tank/code
21    o simplify EXCH interface:
22     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
23     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
24    o added the regrid package
25    o shelfice:
26     - add a simple boundary layer scheme to reduce noise
27     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
28    
29    checkpoint58n_post
30    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
31       local variable (not in common block).
32    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
33      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
34      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
35        to work with SingleCpuIO.
36    o add "_d 0" to real constant of pkg/cfc subroutines ;
37       update exp. cfc_exemple & tutorial_cfc_offline output files.
38    o multi-threading and IO:
39      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
40        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
41      - barrier before and after reading.
42      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
43      - avoid using MDS_WRITELOCAL for LAND pkg output.
44      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
45        common-block variables ; Allows multi-threading with master-thread IO.
46    o change default MAX_NO_THREADS from 32 to 4 ;
47      and stop cleanly when MAX_NO_THREADS is too small.
48    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
49    
50    checkpoint58m_post
51    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
52       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
53    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
54       keep global_ocean.90x40x15 (for AD testing) with former secondary test
55       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
56    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
57        add MITgcm_tutorials (= code + all the tutorials)
58    o ecco, option to compute cost for total ssh (mean+anom)
59    o consistent with addition of ptracer and ssh in pkg/profiles
60    o profiles: adding ptracer and ssh
61    o testreport: change multi-test output-file name
62      (from output.txt.{name} to output.{name}.txt)
63    o profiles: now ok for mutli-tiles case
64    o seaice: add 4 parameters for different advection schemes for area,
65      (effective) seaice thickness, enthalphy, and snow height. Their default
66      is the standard parameter SEAICEadvScheme
67    o calc_gw:
68     - add cosFacU in zonal viscous flux (harmonic.visc.).
69     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
70       of tutorial_plume_on_slope.
71    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
72    o calc_gw: true flux-form, account for horizontal grid spacing.
73      update rotating_tank results, but not plume_on_slope (affected at
74      truncation level, 11 digits).
75    
76    checkpoint58l_post
77    o calc_gw:
78     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
79     - remove side-drag for now (need to fix it); update plume_on_slope results.
80     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
81    o commit code to make SST/SSS weights spatially variable
82      (based on either variable in-situ or variable initial T/S weights)
83    o pkg/ecco:
84      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
85        now based on horizontally varying weights wthetaLev, wsaltLev
86      * cost_averagesflags now returns year indices in addition to day, month
87      * sflux balance is performed on annual basis
88        (sflxumm, sfluxmm2, bal_sfluxmm)
89      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
90        including separate counting and multipliers
91    o pkg/rbcs
92      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
93    
94    checkpoint58k_post
95    o testreport:
96     - always build in dir. "build" (if not there, mkdir build instead of building
97       & running in input)
98     - run in dir run (if it exists), in build otherwise.
99     - call prepare_run (if input/prepare_run exists)
100     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
101    o pkg/exf modifications to interpolation and rotation routines for more
102       reasonable treatment of North Pole singularity: for tracers North Pole
103       value is set to northernmost zonal-mean value, for zonal velocity it is
104       set to zero, and for meridional velocity it is set to northernmost value.
105    o pkg/exf/exf_check_range.F
106     - add tile index to diagnostics and move stop statement to the very
107       end of the routine.
108    o pkg/diagnostics: (diagnostics_main_init.F)
109      define title of isomorphic variables according to the current config.
110    o pkg/thsice with pkg/seaice dynamics:
111    - fix domain of computation (interior only, required for exf) and do exchanges
112    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
113    o towards a standard way of dealing with multi-threading in MONITOR
114      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
115    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
116       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
117    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
118    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
119    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
120       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
121    o tracer advection:
122     - clean-up and simplify calc_common_factors.F
123     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
124       advection subroutine (but still not used within DST advection S/R)
125    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
126    
127    checkpoint58j_post
128    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
129      from file (collects calls previously in FORWARD_STEP)
130    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
131    o adjoint store dir. adjusted accordingly
132    o genmake2
133      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
134    
135    checkpoint58i_post
136    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
137      on wind stress (SEAICEstressFactor defaults to 1.)
138    o Total number of Timers is finite (<=40): comment out 2 non-essential one
139      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
140    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
141      on CS-grid: no longer loosing mass.
142    o exf & curvilinear-grid: no longer modify longitude xC & xG.
143    o pkg/ggl90: fix sloppy output and fix a bug
144    o pkg/seaice: added SEAICEuseEVPpickup parameter
145      - Set to false in order to start EVP solver with
146        non-EVP pickup files when using SEAICEuseEVP
147      - fix sign error in diffusion in seaice_calc_rhs
148    
149    checkpoint58h_post
150    * Modifications for bottom topography control
151      o replace hFacC by _hFacC at various places
152      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
153      o add non-self-adjoint cg2d_nsa
154      o update autodiff support routines
155      o re-initialise hfac after ctrl_depth_ini
156      o works for 5x5 box, doesnt work for global_ocean.90x40x15
157    * Adding verification for 5x5 box (4-layer) bottom topography control
158    
159    checkpoint58g_post
160    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
161       used for mean seasonal cycle, mean diurnal cycle); add an example
162       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
163    o pkg/ggl90:
164      - add parameter (minimum surface kinetic energy)
165      - fix bug (avoiding division by zero)
166    o couple pkg/thsice to pkg/seaice:
167      - modify advection in seaice to accomodate new scalar fields to be advected
168      - only muliDimAdection scheme work with seaice/thsice
169      - mapping of thsice-variables to seaice-variables, back and forth
170      - does not break the verification experiments, but does not give the
171        desired results either
172    o pkg/seaice
173      - make (default) second order advection a bit less confusing?
174    
175    checkpoint58f_post
176    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
177      to pkg/seaice):
178      - new routines thsice_map_exf and thsice_get_exf provide the interface
179      - add an additional formal parameter to thsice_solve4temp
180    o pkg/exf:
181      - add new fields wspeed, snowprecip (to be able to couple to thsice)
182      - correct Stefan-Boltzmann constant
183      - new parameter for longwave surface emittance
184      - separate some stuff from exf_bulkformulae into new routines  
185        exf_radiation, exf_wind
186      - add new parameters and constants: longwave emissivity for ocean, ice
187        and snow, evaporation parameters over ice
188      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
189        either wind from stress or stress from wind
190    o pkg/thSIce:
191    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
192    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
193       and THSICE_CALC_THICKN
194    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
195    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
196      to make debugging easier.
197    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
198    o pkg/bulk_force:
199      - clean-up comments and parameters ;
200      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
201    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
202      generate new output for test-experiment: aim.5l_cs.thSI
203    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
204      testreport accordingly
205    
206    checkpoint58e_post
207    o SEAICE_CGRID adjoint done
208    o R_STAR adjoint implemented.
209      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
210      * need to sort out init. of h0facc, etc.
211    o Make pkg/profile fully independent of ecco,cost, etc. stuff
212      to be able to use it in pure forward.
213    
214    checkpoint58d_post
215    o upgrade simple test-experiment to tutorial example:
216     step.1: duplicate the experiment and (step.2) will remove the old copy.
217      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
218      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
219      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
220      tutorial_global_oce_biogeo    <- copy of dic_example
221      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
222      tutorial_plume_on_slope       <- copy of plume_on_slope
223      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
224      tutorial_global_oce_optim     <- empty for now (David ?)
225      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
226     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
227    o correct a sign problem in cost_scat.F
228    o obcs and ptracers: fix boundary conditions for advections schemes
229      with larger stencil
230    o thsice adjoint: start
231    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
232      completeness
233    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
234      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
235    o ptracers adjoint:
236      * avoid extensive recomputatations
237      * fix missing re-init. of gptr (missed by TAF)
238    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
239      me to turn off the excessive output to STDOUT that this package produces
240    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
241      and add those terms in Vector-Invariant formulation.
242    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
243      if the control period (xx_hfluxperiod etc) is 0
244    o in profiles pkg, clean routines and fix details
245    o in ecco pkg, reading ssh data:
246      fix problem in case the model does not start at iter0=0
247    o fix mnc-pickup/restart for ptracers
248    o new package prifiles:
249      code to compute profile-based cost by Gael Forget
250      (modifs in ecco, ctrl, autodiff)
251    o Benign bug fix in initialization (spotted by M. Mazloff) of
252      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
253    
254    checkpoint58c_post
255    o adjoint: finish NLFS adjoint and provide reference output in
256      verification/global_ocean.90x40x15/results_ad_nlfs
257    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
258      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
259      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
260      with SEAICE_CGRID defined.
261    o move calendarDumps from "data" to "data.cal" and clean-up the code
262      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
263    o add useEXF & useCAL flags (for now, set in hard-coded way)
264    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
265      (were missing in NH mode, and wrong in quasihydrostatic mode).
266      waiting for Chris updated version of calc_gw to add those CALLs.
267    o fix bug in quasihydrostatic S/R ;
268      add a test for this option: global_ocean.90x40x15.qshyd
269    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
270      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
271    o add on/off flag useOffLine for package OFFLINE
272    o seaice:
273      - modify advection so that it works also on the C-grid
274      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
275        problem in multi-tile runs with C-grid
276      - add flags for clipping ice velocities and/or masking solver forcing
277      - fix drag (ocean on ice) formulation and a bug that caused noise in the
278        C-grid solver
279      - added a few comments to seaice_diffusion.F
280      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
281        are now exclusive)
282      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
283        required re-ordering the code a little:
284       + make DAIRN global variable (defined in SEAICE)
285       + move computation of the viscosities eta and zeta into a new separate
286         routine (because I need to recompute them in seaice_ocean_stress.F)
287    
288    checkpoint58b_post
289    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
290      update output.txt of exp. aim.5l_cs.thSI
291    o various mnc cleanups and improvements:
292      + shrink lookup tables by factor of ~4
293      + better error reporting when running out of lookup space
294      + able to handle longer path/file names (up to 500 chars)
295    o adjoint:
296      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
297      - TBD: "hidden" mom_vecinv recomp. in dynamics
298    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
299     (allow to differentiate between forcing components using new integer flags:
300      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
301     and add new flag to put Dissipation tendency out of Adams-Bashforth.
302    o ecco
303      - enable trend removal from SSH anomaly obs.
304    o adjoint
305      - a fix for PmEpR when #undef EXACT_CONSERV
306      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
307      - try to fix "hidden" recomp. in forward_step for NLFS
308        (NLFS seems broken sometimes after I checked it in)
309    o seaice:
310     - add c-grid version of the dynamic solver:
311       + three new routines that are the c-grid substitute lsr, dynsolver
312         and ostres
313       + put a few fields that were local to dynsolver into global common
314         blocks, so that I can move the computation of stresses etc into
315         seaice_lsr (saves coding but may break the adjoint).
316     - replace more hardwired parameters by runtime parameters
317     - add ice masks that mask the rhs of the implicit solvers where there
318       is no ice (commented out in seaice_dynsolver, because i am not sure
319       if this works properly), eventually this should replace the clipping
320       of ice velocities in seaice_dynsolver to +/-40cm/s.
321    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
322      include it only where its needed
323    o move balancing of fluxes before the call of external_forcing_surf
324    o seaice:
325      - correct units of turning angles (now they are really in degrees)
326      - move computation of GWATX/Y out of main routine into dynsolver
327      - initialize GWATX/Y in seaice_init
328    o Apply mask on Fresh-Water flux (needed for SSH forcing).
329      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
330    o seaice: add runtime flags for turning angles (default to zero)
331    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
332      and trend from exf forcing and ctrl control adjustments
333    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
334      (since checkpoint57x_post)
335    o change the default rotation period to 86164.s = the Earth rotation
336    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
337      and based on a reference stratification. Tested within hs94.cs-32x32x5.
338    o seaice advection: add code for choosing between the default (2nd order
339      central differences) and multiDim advection schemes provided by
340      pkg/generic_advdiff
341    o seaice:
342      - removed all references to SEAICE_GRID.h fields from
343        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
344        (cubed-sphere configuration will change a little)
345      - grid computations in seaice_init are obsolete now.
346      - cleaned up code a little so that is easier to read (hopefully).
347      - added new (better?) discretizations of default advection and diffusion
348        (turn on with SEAICEuseFluxForm)
349      - replace 1 in 3d global fields by kSurface in growth.F
350      
351    checkpoint58a_post
352    o seaice:
353      - bug fix in advect.F
354    o shelfice:
355      - separate shelfice load anomaly from pload (breaks with time
356        dependent forcing), => introduce constant field shelficeLoadAnomaly.
357        Its default is 0., but it may be computed more cleverly from (unknown)
358        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
359        done offline. A good approximation of the pressure load anomaly is
360        necessary to avoid large initial adjustment processes underneath
361        deep-reaching shelfice.
362      - small fix in ISOMIP shelfice_thermodynamics
363      - add more sophisticated thermodynamics of Hellmer (1989), this is
364        now the default
365      - give a few constants more intuitive names
366    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
367      if bulk formulae are used in long integration (especially EmPmR). Turn
368      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
369      if balancePrintMean, the imbalance that is substracted is printed to
370      STDOUT.
371    o fix bug (typo) in obcs_apply_eta.F
372    o add a new package shelfice which enables us to model the circulation
373      underneath shelf-ice with draughts of hundreds of meters.
374     - works
375     - to do: + include improved thermodynamics
376              + check whether kSurfC (from model/inc/SURFACE.h) can be used
377                instead of new field kTopC
378              + can we use topoFile, Ro_surf and existing code in ini_depth.F
379                instead of new field R_shelfIce and new code in ini_depth.F
380                and ini_mask_etc.F?
381              + adjust vertical mixing schemes?
382    o seaice pkg:
383     - add a cpp-flag to include a simple formula for a salinity dependent
384       freezing point of sea water at the surface
385     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
386       meridional stresses are now different (and hopefully correct)
387    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
388       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
389       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
390    o pkg/diagnostics: add options and parameters for regional-statistics
391       diagnostics ; define regions by reading a region-mask from a file
392       (might add other options later)
393    o pkg/bulk_force:
394     - add option and parameters to use AIM surface-flux formulae.
395     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
396       others forcing fields (defined in PARM05, parameter file "data") are loaded
397       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
398     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
399     - use the right EXCH call for uwind,vwind (to work on CS-grid).
400     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
401       and parameters (note: calcWindStress replaces .NOT.readwindstress).
402     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
403    
404    checkpoint58
405  o add "--embed-source" option to genmake2 which, when the supporting  o add "--embed-source" option to genmake2 which, when the supporting
406    tools can be compiled (as determined by genmake2) will turn on the    tools can be compiled (as determined by genmake2) will turn on the
407    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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