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revision 1.624 by jmc, Tue Mar 7 17:31:03 2006 UTC revision 1.755 by mlosch, Thu Dec 14 08:39:57 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: overhaul of thermodynamics
8     - growth.F and groatb.F are replaced by new routine seaice_growth.F
9     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
10     - move a few global fields out of SEAICE.h into seaice_growth.F and
11       make them 2D (FICE/QNETO/ ...)
12     - remove FO (it is the same as QNETO)
13     - introduce a few local fields to avoid modifying external fields such
14       as atemp, etc.
15    
16    checkpoint58s_post
17    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
18      changed exf_set_gen.F so that
19        genperiod=0 means input file is one time-constant field and
20        genperiod=-12 means input file contains 12 monthly means
21    o CG2D: use pre-computed solver main-diagonal (stored in common block);
22      this affects truncation error ; generate new output file for exp. which
23      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
24        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
25        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
26        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
27        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
28        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
29    o start implementation of deep-atmosphere and anelastic formulation
30    o verification: remove 2nd copy of input files and use script "prepare_run"
31      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
32    o mom_common/vecinv/fluxform: fix a few initialisation isssues
33    o profiles: fix for multithreaded case
34    
35    o diagnostics: rename few diags:
36      s/'PRESSURE'/'RCENTER '/g
37      s/'TICE    '/'oceFreez'/g
38      s/'TAUX    '/'oceTAUX '/g
39      s/'TAUY    '/'oceTAUY '/g
40      s/'SWFLUX  '/'oceQsw  '/g
41      s/DIFx/DFxE/g
42      s/DIFy/DFyE/g
43      and add few ocean-forcing diagnostics:
44      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
45    o modifications to pkg/seaice/growth.F and budget.F, which change results of
46      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
47      as actual snow thickness.  It now refers everywhere to effective snow
48      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
49    
50    checkpoint58r_post
51    o modifications to pkg/seaice/growth.F, which change results of
52      lab_sea experiment: fixes pertain to melting snow over open water, to
53      masking EVAP under sea ice, and to using the correct AREA variable for
54      computations of EVAP, PRECIP, HSNOW, and GHEFF
55    o add ability to read bathy, salt, and theta using MNC (off by def)
56    o add flooding algorithm and advection of HSNOW for pkg/seaice;
57      both are turned off by default and do no change any results
58    o seaice advection with pkg/thsice: a step toward the use of non-linear
59      advection scheme, but #ifdef or commented out for now (requires more EXCH).
60    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
61      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
62      in natl_box (affects results @ truncation level: update output.txt)
63    o multi-threading and IO:
64      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
65      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
66        (needed to work with SingleCpuIO): tested in all verif. exp.
67    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
68      affects the results (but none of the verification test uses this scheme).
69    o Adding some pkg/diagnostics capability to pkg/seaice
70      (will certainly be subject to changes)
71    o ctrl: adding new control variables:
72      lwflux, lwdown, evap, snowprecip, apressure, runoff
73    
74    checkpoint58q_post
75    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
76      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
77      high_res_cube configuration by 4% on Columbia.
78    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
79      add (in global_with_exf/code) a version of EXF_INTERP_READ without
80      dynamical allocation (seems to work in multi-threaded).
81    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
82      single CPU io) so that TAF does not have to see EESUPPORT.h
83    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
84    
85    checkpoint58p_post
86    o obcs: stop if obcs is used with useCDscheme = .true.
87    o shelfice:
88     - fix a sign error so that no slip at shelfice interface works
89     - remove stop for combination non-hydrostatic code and shelfice. That does
90       not mean, that the results are correct, but at least they are numerically
91       stable
92    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
93    o added adjoint exch routined for all exch*3d* routines
94      and updated flow directives
95    
96    checkpoint58o_post
97    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
98      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
99    o change controling S/R for writing pickup file (new S/R do_write_pickup)
100      and clean-up reading/writing of pickup files.
101    o fix local version of read/write pickup (NH part) in rotating_tank/code
102    o simplify EXCH interface:
103     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
104     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
105    o added the regrid package
106    o shelfice:
107     - add a simple boundary layer scheme to reduce noise
108     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
109    
110    checkpoint58n_post
111    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
112       local variable (not in common block).
113    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
114      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
115      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
116        to work with SingleCpuIO.
117    o add "_d 0" to real constant of pkg/cfc subroutines ;
118       update exp. cfc_exemple & tutorial_cfc_offline output files.
119    o multi-threading and IO:
120      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
121        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
122      - barrier before and after reading.
123      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
124      - avoid using MDS_WRITELOCAL for LAND pkg output.
125      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
126        common-block variables ; Allows multi-threading with master-thread IO.
127    o change default MAX_NO_THREADS from 32 to 4 ;
128      and stop cleanly when MAX_NO_THREADS is too small.
129    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
130    
131    checkpoint58m_post
132    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
133       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
134    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
135       keep global_ocean.90x40x15 (for AD testing) with former secondary test
136       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
137    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
138        add MITgcm_tutorials (= code + all the tutorials)
139    o ecco, option to compute cost for total ssh (mean+anom)
140    o consistent with addition of ptracer and ssh in pkg/profiles
141    o profiles: adding ptracer and ssh
142    o testreport: change multi-test output-file name
143      (from output.txt.{name} to output.{name}.txt)
144    o profiles: now ok for mutli-tiles case
145    o seaice: add 4 parameters for different advection schemes for area,
146      (effective) seaice thickness, enthalphy, and snow height. Their default
147      is the standard parameter SEAICEadvScheme
148    o calc_gw:
149     - add cosFacU in zonal viscous flux (harmonic.visc.).
150     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
151       of tutorial_plume_on_slope.
152    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
153    o calc_gw: true flux-form, account for horizontal grid spacing.
154      update rotating_tank results, but not plume_on_slope (affected at
155      truncation level, 11 digits).
156    
157    checkpoint58l_post
158    o calc_gw:
159     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
160     - remove side-drag for now (need to fix it); update plume_on_slope results.
161     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
162    o commit code to make SST/SSS weights spatially variable
163      (based on either variable in-situ or variable initial T/S weights)
164    o pkg/ecco:
165      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
166        now based on horizontally varying weights wthetaLev, wsaltLev
167      * cost_averagesflags now returns year indices in addition to day, month
168      * sflux balance is performed on annual basis
169        (sflxumm, sfluxmm2, bal_sfluxmm)
170      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
171        including separate counting and multipliers
172    o pkg/rbcs
173      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
174    
175    checkpoint58k_post
176    o testreport:
177     - always build in dir. "build" (if not there, mkdir build instead of building
178       & running in input)
179     - run in dir run (if it exists), in build otherwise.
180     - call prepare_run (if input/prepare_run exists)
181     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
182    o pkg/exf modifications to interpolation and rotation routines for more
183       reasonable treatment of North Pole singularity: for tracers North Pole
184       value is set to northernmost zonal-mean value, for zonal velocity it is
185       set to zero, and for meridional velocity it is set to northernmost value.
186    o pkg/exf/exf_check_range.F
187     - add tile index to diagnostics and move stop statement to the very
188       end of the routine.
189    o pkg/diagnostics: (diagnostics_main_init.F)
190      define title of isomorphic variables according to the current config.
191    o pkg/thsice with pkg/seaice dynamics:
192    - fix domain of computation (interior only, required for exf) and do exchanges
193    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
194    o towards a standard way of dealing with multi-threading in MONITOR
195      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
196    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
197       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
198    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
199    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
200    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
201       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
202    o tracer advection:
203     - clean-up and simplify calc_common_factors.F
204     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
205       advection subroutine (but still not used within DST advection S/R)
206    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
207    
208    checkpoint58j_post
209    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
210      from file (collects calls previously in FORWARD_STEP)
211    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
212    o adjoint store dir. adjusted accordingly
213    o genmake2
214      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
215    
216    checkpoint58i_post
217    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
218      on wind stress (SEAICEstressFactor defaults to 1.)
219    o Total number of Timers is finite (<=40): comment out 2 non-essential one
220      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
221    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
222      on CS-grid: no longer loosing mass.
223    o exf & curvilinear-grid: no longer modify longitude xC & xG.
224    o pkg/ggl90: fix sloppy output and fix a bug
225    o pkg/seaice: added SEAICEuseEVPpickup parameter
226      - Set to false in order to start EVP solver with
227        non-EVP pickup files when using SEAICEuseEVP
228      - fix sign error in diffusion in seaice_calc_rhs
229    
230    checkpoint58h_post
231    * Modifications for bottom topography control
232      o replace hFacC by _hFacC at various places
233      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
234      o add non-self-adjoint cg2d_nsa
235      o update autodiff support routines
236      o re-initialise hfac after ctrl_depth_ini
237      o works for 5x5 box, doesnt work for global_ocean.90x40x15
238    * Adding verification for 5x5 box (4-layer) bottom topography control
239    
240    checkpoint58g_post
241    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
242       used for mean seasonal cycle, mean diurnal cycle); add an example
243       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
244    o pkg/ggl90:
245      - add parameter (minimum surface kinetic energy)
246      - fix bug (avoiding division by zero)
247    o couple pkg/thsice to pkg/seaice:
248      - modify advection in seaice to accomodate new scalar fields to be advected
249      - only muliDimAdection scheme work with seaice/thsice
250      - mapping of thsice-variables to seaice-variables, back and forth
251      - does not break the verification experiments, but does not give the
252        desired results either
253    o pkg/seaice
254      - make (default) second order advection a bit less confusing?
255    
256    checkpoint58f_post
257    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
258      to pkg/seaice):
259      - new routines thsice_map_exf and thsice_get_exf provide the interface
260      - add an additional formal parameter to thsice_solve4temp
261    o pkg/exf:
262      - add new fields wspeed, snowprecip (to be able to couple to thsice)
263      - correct Stefan-Boltzmann constant
264      - new parameter for longwave surface emittance
265      - separate some stuff from exf_bulkformulae into new routines  
266        exf_radiation, exf_wind
267      - add new parameters and constants: longwave emissivity for ocean, ice
268        and snow, evaporation parameters over ice
269      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
270        either wind from stress or stress from wind
271    o pkg/thSIce:
272    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
273    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
274       and THSICE_CALC_THICKN
275    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
276    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
277      to make debugging easier.
278    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
279    o pkg/bulk_force:
280      - clean-up comments and parameters ;
281      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
282    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
283      generate new output for test-experiment: aim.5l_cs.thSI
284    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
285      testreport accordingly
286    
287    checkpoint58e_post
288    o SEAICE_CGRID adjoint done
289    o R_STAR adjoint implemented.
290      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
291      * need to sort out init. of h0facc, etc.
292    o Make pkg/profile fully independent of ecco,cost, etc. stuff
293      to be able to use it in pure forward.
294    
295    checkpoint58d_post
296    o upgrade simple test-experiment to tutorial example:
297     step.1: duplicate the experiment and (step.2) will remove the old copy.
298      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
299      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
300      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
301      tutorial_global_oce_biogeo    <- copy of dic_example
302      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
303      tutorial_plume_on_slope       <- copy of plume_on_slope
304      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
305      tutorial_global_oce_optim     <- empty for now (David ?)
306      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
307     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
308    o correct a sign problem in cost_scat.F
309    o obcs and ptracers: fix boundary conditions for advections schemes
310      with larger stencil
311    o thsice adjoint: start
312    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
313      completeness
314    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
315      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
316    o ptracers adjoint:
317      * avoid extensive recomputatations
318      * fix missing re-init. of gptr (missed by TAF)
319    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
320      me to turn off the excessive output to STDOUT that this package produces
321    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
322      and add those terms in Vector-Invariant formulation.
323    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
324      if the control period (xx_hfluxperiod etc) is 0
325    o in profiles pkg, clean routines and fix details
326    o in ecco pkg, reading ssh data:
327      fix problem in case the model does not start at iter0=0
328    o fix mnc-pickup/restart for ptracers
329    o new package prifiles:
330      code to compute profile-based cost by Gael Forget
331      (modifs in ecco, ctrl, autodiff)
332    o Benign bug fix in initialization (spotted by M. Mazloff) of
333      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
334    
335    checkpoint58c_post
336    o adjoint: finish NLFS adjoint and provide reference output in
337      verification/global_ocean.90x40x15/results_ad_nlfs
338    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
339      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
340      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
341      with SEAICE_CGRID defined.
342    o move calendarDumps from "data" to "data.cal" and clean-up the code
343      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
344    o add useEXF & useCAL flags (for now, set in hard-coded way)
345    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
346      (were missing in NH mode, and wrong in quasihydrostatic mode).
347      waiting for Chris updated version of calc_gw to add those CALLs.
348    o fix bug in quasihydrostatic S/R ;
349      add a test for this option: global_ocean.90x40x15.qshyd
350    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
351      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
352    o add on/off flag useOffLine for package OFFLINE
353    o seaice:
354      - modify advection so that it works also on the C-grid
355      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
356        problem in multi-tile runs with C-grid
357      - add flags for clipping ice velocities and/or masking solver forcing
358      - fix drag (ocean on ice) formulation and a bug that caused noise in the
359        C-grid solver
360      - added a few comments to seaice_diffusion.F
361      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
362        are now exclusive)
363      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
364        required re-ordering the code a little:
365       + make DAIRN global variable (defined in SEAICE)
366       + move computation of the viscosities eta and zeta into a new separate
367         routine (because I need to recompute them in seaice_ocean_stress.F)
368    
369    checkpoint58b_post
370    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
371      update output.txt of exp. aim.5l_cs.thSI
372    o various mnc cleanups and improvements:
373      + shrink lookup tables by factor of ~4
374      + better error reporting when running out of lookup space
375      + able to handle longer path/file names (up to 500 chars)
376    o adjoint:
377      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
378      - TBD: "hidden" mom_vecinv recomp. in dynamics
379  o change forcing_In_AB to affects both T,S forcing and Momentum forcing  o change forcing_In_AB to affects both T,S forcing and Momentum forcing
380   (allow to differentiate between forcing components using new integer flags:   (allow to differentiate between forcing components using new integer flags:
381    momForcingOutAB=1/0 & tracForcingOutAB=1/0)    momForcingOutAB=1/0 & tracForcingOutAB=1/0)

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