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revision 1.638 by heimbach, Thu Mar 23 19:59:59 2006 UTC revision 1.766 by jmc, Tue Jan 16 19:45:13 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
8     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
9     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
10     - still needs work (not working with some options ; efficiency to improve)
11       and serious testing.
12     - use this scheme for temperature & salinity in 2 advection test exp.:
13       advect_xy & advect_xz, respectively.
14    
15    checkpoint58u_post
16    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
17    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
18    o testreport: add option "-skipdir" to skip some test.
19    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
20      momentum calculation.
21    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
22    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
23      remove checkpoint.F and the_correction_step.F (no longer used);
24      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
25    o add option (linFSConserveTr) to correct for tracer source/sink due to
26      Linear Free surface
27    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
28    o pkg/thsice: fix reading mnc-pickups
29    
30    checkpoint58t_post
31    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
32    o pkg/mdsio:
33     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
34       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
35       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
36     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
37     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
38       either MDS_READ_FIELD or MDS_WRITE_FIELD )
39     - new S/R (to replace MDSWRITEMETA), which allows to write more
40       informations (variable names, time ...) to meta files.
41     - modify rdmds.m to give back the meta file content.
42    o pkg/diagnostics: change vertical interpolation to be safer, and more
43       flexible (define p-levels to interpolate to in data.diagnostics);
44      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
45       diagnostic pointer.
46    o pkg/seaice: more cleaning up of seaice_growth, added many comments
47    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
48    o fix multi-category seaice:
49     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
50       SEAICE_MULTICATEGORY
51     - fix short wave heat flux
52    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
53       and allow to use EVP solver. Change forward lab_sea: test both EVP
54       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
55    o Initial check-in of lab_sea adjoint
56      (very similar to natl_box_adjoint/code_seaice)
57      * used C-grid and EVP solver
58      * used KPP, GM/Redi
59      * uses inAdExact=.TRUE.
60      * gradient checks fail for both ADM and TLM
61        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
62        f.d. gradients actually seem more problematic than ADM, TLM gradients;
63        issue is related to forward mismatch between g77 an ifort
64    o pkg/seaice: overhaul of thermodynamics
65     - growth.F and groatb.F are replaced by new routine seaice_growth.F
66     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
67     - move a few global fields out of SEAICE.h into seaice_growth.F and
68       make them 2D (FICE/QNETO/ ...)
69     - remove FO (it is the same as QNETO)
70     - introduce a few local fields to avoid modifying external fields such
71       as atemp, etc.
72    
73    checkpoint58s_post
74    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
75      changed exf_set_gen.F so that
76        genperiod=0 means input file is one time-constant field and
77        genperiod=-12 means input file contains 12 monthly means
78    o CG2D: use pre-computed solver main-diagonal (stored in common block);
79      this affects truncation error ; generate new output file for exp. which
80      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
81        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
82        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
83        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
84        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
85        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
86    o start implementation of deep-atmosphere and anelastic formulation
87    o verification: remove 2nd copy of input files and use script "prepare_run"
88      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
89    o mom_common/vecinv/fluxform: fix a few initialisation isssues
90    o profiles: fix for multithreaded case
91    
92    o diagnostics: rename few diags:
93      s/'PRESSURE'/'RCENTER '/g
94      s/'TICE    '/'oceFreez'/g
95      s/'TAUX    '/'oceTAUX '/g
96      s/'TAUY    '/'oceTAUY '/g
97      s/'SWFLUX  '/'oceQsw  '/g
98      s/DIFx/DFxE/g
99      s/DIFy/DFyE/g
100      and add few ocean-forcing diagnostics:
101      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
102    o modifications to pkg/seaice/growth.F and budget.F, which change results of
103      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
104      as actual snow thickness.  It now refers everywhere to effective snow
105      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
106    
107    checkpoint58r_post
108    o modifications to pkg/seaice/growth.F, which change results of
109      lab_sea experiment: fixes pertain to melting snow over open water, to
110      masking EVAP under sea ice, and to using the correct AREA variable for
111      computations of EVAP, PRECIP, HSNOW, and GHEFF
112    o add ability to read bathy, salt, and theta using MNC (off by def)
113    o add flooding algorithm and advection of HSNOW for pkg/seaice;
114      both are turned off by default and do no change any results
115    o seaice advection with pkg/thsice: a step toward the use of non-linear
116      advection scheme, but #ifdef or commented out for now (requires more EXCH).
117    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
118      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
119      in natl_box (affects results @ truncation level: update output.txt)
120    o multi-threading and IO:
121      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
122      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
123        (needed to work with SingleCpuIO): tested in all verif. exp.
124    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
125      affects the results (but none of the verification test uses this scheme).
126    o Adding some pkg/diagnostics capability to pkg/seaice
127      (will certainly be subject to changes)
128    o ctrl: adding new control variables:
129      lwflux, lwdown, evap, snowprecip, apressure, runoff
130    
131    checkpoint58q_post
132    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
133      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
134      high_res_cube configuration by 4% on Columbia.
135    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
136      add (in global_with_exf/code) a version of EXF_INTERP_READ without
137      dynamical allocation (seems to work in multi-threaded).
138    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
139      single CPU io) so that TAF does not have to see EESUPPORT.h
140    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
141    
142    checkpoint58p_post
143    o obcs: stop if obcs is used with useCDscheme = .true.
144    o shelfice:
145     - fix a sign error so that no slip at shelfice interface works
146     - remove stop for combination non-hydrostatic code and shelfice. That does
147       not mean, that the results are correct, but at least they are numerically
148       stable
149    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
150    o added adjoint exch routined for all exch*3d* routines
151      and updated flow directives
152    
153    checkpoint58o_post
154    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
155      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
156    o change controling S/R for writing pickup file (new S/R do_write_pickup)
157      and clean-up reading/writing of pickup files.
158    o fix local version of read/write pickup (NH part) in rotating_tank/code
159    o simplify EXCH interface:
160     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
161     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
162    o added the regrid package
163    o shelfice:
164     - add a simple boundary layer scheme to reduce noise
165     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
166    
167    checkpoint58n_post
168    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
169       local variable (not in common block).
170    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
171      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
172      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
173        to work with SingleCpuIO.
174    o add "_d 0" to real constant of pkg/cfc subroutines ;
175       update exp. cfc_exemple & tutorial_cfc_offline output files.
176    o multi-threading and IO:
177      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
178        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
179      - barrier before and after reading.
180      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
181      - avoid using MDS_WRITELOCAL for LAND pkg output.
182      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
183        common-block variables ; Allows multi-threading with master-thread IO.
184    o change default MAX_NO_THREADS from 32 to 4 ;
185      and stop cleanly when MAX_NO_THREADS is too small.
186    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
187    
188    checkpoint58m_post
189    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
190       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
191    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
192       keep global_ocean.90x40x15 (for AD testing) with former secondary test
193       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
194    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
195        add MITgcm_tutorials (= code + all the tutorials)
196    o ecco, option to compute cost for total ssh (mean+anom)
197    o consistent with addition of ptracer and ssh in pkg/profiles
198    o profiles: adding ptracer and ssh
199    o testreport: change multi-test output-file name
200      (from output.txt.{name} to output.{name}.txt)
201    o profiles: now ok for mutli-tiles case
202    o seaice: add 4 parameters for different advection schemes for area,
203      (effective) seaice thickness, enthalphy, and snow height. Their default
204      is the standard parameter SEAICEadvScheme
205    o calc_gw:
206     - add cosFacU in zonal viscous flux (harmonic.visc.).
207     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
208       of tutorial_plume_on_slope.
209    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
210    o calc_gw: true flux-form, account for horizontal grid spacing.
211      update rotating_tank results, but not plume_on_slope (affected at
212      truncation level, 11 digits).
213    
214    checkpoint58l_post
215    o calc_gw:
216     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
217     - remove side-drag for now (need to fix it); update plume_on_slope results.
218     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
219    o commit code to make SST/SSS weights spatially variable
220      (based on either variable in-situ or variable initial T/S weights)
221    o pkg/ecco:
222      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
223        now based on horizontally varying weights wthetaLev, wsaltLev
224      * cost_averagesflags now returns year indices in addition to day, month
225      * sflux balance is performed on annual basis
226        (sflxumm, sfluxmm2, bal_sfluxmm)
227      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
228        including separate counting and multipliers
229    o pkg/rbcs
230      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
231    
232    checkpoint58k_post
233    o testreport:
234     - always build in dir. "build" (if not there, mkdir build instead of building
235       & running in input)
236     - run in dir run (if it exists), in build otherwise.
237     - call prepare_run (if input/prepare_run exists)
238     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
239    o pkg/exf modifications to interpolation and rotation routines for more
240       reasonable treatment of North Pole singularity: for tracers North Pole
241       value is set to northernmost zonal-mean value, for zonal velocity it is
242       set to zero, and for meridional velocity it is set to northernmost value.
243    o pkg/exf/exf_check_range.F
244     - add tile index to diagnostics and move stop statement to the very
245       end of the routine.
246    o pkg/diagnostics: (diagnostics_main_init.F)
247      define title of isomorphic variables according to the current config.
248    o pkg/thsice with pkg/seaice dynamics:
249    - fix domain of computation (interior only, required for exf) and do exchanges
250    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
251    o towards a standard way of dealing with multi-threading in MONITOR
252      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
253    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
254       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
255    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
256    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
257    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
258       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
259    o tracer advection:
260     - clean-up and simplify calc_common_factors.F
261     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
262       advection subroutine (but still not used within DST advection S/R)
263    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
264    
265    checkpoint58j_post
266    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
267      from file (collects calls previously in FORWARD_STEP)
268    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
269    o adjoint store dir. adjusted accordingly
270    o genmake2
271      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
272    
273    checkpoint58i_post
274    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
275      on wind stress (SEAICEstressFactor defaults to 1.)
276    o Total number of Timers is finite (<=40): comment out 2 non-essential one
277      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
278    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
279      on CS-grid: no longer loosing mass.
280    o exf & curvilinear-grid: no longer modify longitude xC & xG.
281    o pkg/ggl90: fix sloppy output and fix a bug
282    o pkg/seaice: added SEAICEuseEVPpickup parameter
283      - Set to false in order to start EVP solver with
284        non-EVP pickup files when using SEAICEuseEVP
285      - fix sign error in diffusion in seaice_calc_rhs
286    
287    checkpoint58h_post
288    * Modifications for bottom topography control
289      o replace hFacC by _hFacC at various places
290      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
291      o add non-self-adjoint cg2d_nsa
292      o update autodiff support routines
293      o re-initialise hfac after ctrl_depth_ini
294      o works for 5x5 box, doesnt work for global_ocean.90x40x15
295    * Adding verification for 5x5 box (4-layer) bottom topography control
296    
297    checkpoint58g_post
298    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
299       used for mean seasonal cycle, mean diurnal cycle); add an example
300       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
301    o pkg/ggl90:
302      - add parameter (minimum surface kinetic energy)
303      - fix bug (avoiding division by zero)
304    o couple pkg/thsice to pkg/seaice:
305      - modify advection in seaice to accomodate new scalar fields to be advected
306      - only muliDimAdection scheme work with seaice/thsice
307      - mapping of thsice-variables to seaice-variables, back and forth
308      - does not break the verification experiments, but does not give the
309        desired results either
310    o pkg/seaice
311      - make (default) second order advection a bit less confusing?
312    
313    checkpoint58f_post
314    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
315      to pkg/seaice):
316      - new routines thsice_map_exf and thsice_get_exf provide the interface
317      - add an additional formal parameter to thsice_solve4temp
318    o pkg/exf:
319      - add new fields wspeed, snowprecip (to be able to couple to thsice)
320      - correct Stefan-Boltzmann constant
321      - new parameter for longwave surface emittance
322      - separate some stuff from exf_bulkformulae into new routines  
323        exf_radiation, exf_wind
324      - add new parameters and constants: longwave emissivity for ocean, ice
325        and snow, evaporation parameters over ice
326      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
327        either wind from stress or stress from wind
328    o pkg/thSIce:
329    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
330    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
331       and THSICE_CALC_THICKN
332    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
333    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
334      to make debugging easier.
335    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
336    o pkg/bulk_force:
337      - clean-up comments and parameters ;
338      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
339    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
340      generate new output for test-experiment: aim.5l_cs.thSI
341    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
342      testreport accordingly
343    
344    checkpoint58e_post
345    o SEAICE_CGRID adjoint done
346    o R_STAR adjoint implemented.
347      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
348      * need to sort out init. of h0facc, etc.
349    o Make pkg/profile fully independent of ecco,cost, etc. stuff
350      to be able to use it in pure forward.
351    
352    checkpoint58d_post
353    o upgrade simple test-experiment to tutorial example:
354     step.1: duplicate the experiment and (step.2) will remove the old copy.
355      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
356      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
357      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
358      tutorial_global_oce_biogeo    <- copy of dic_example
359      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
360      tutorial_plume_on_slope       <- copy of plume_on_slope
361      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
362      tutorial_global_oce_optim     <- empty for now (David ?)
363      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
364     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
365    o correct a sign problem in cost_scat.F
366    o obcs and ptracers: fix boundary conditions for advections schemes
367      with larger stencil
368    o thsice adjoint: start
369    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
370      completeness
371    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
372      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
373    o ptracers adjoint:
374      * avoid extensive recomputatations
375      * fix missing re-init. of gptr (missed by TAF)
376    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
377      me to turn off the excessive output to STDOUT that this package produces
378    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
379      and add those terms in Vector-Invariant formulation.
380    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
381      if the control period (xx_hfluxperiod etc) is 0
382    o in profiles pkg, clean routines and fix details
383    o in ecco pkg, reading ssh data:
384      fix problem in case the model does not start at iter0=0
385    o fix mnc-pickup/restart for ptracers
386    o new package prifiles:
387      code to compute profile-based cost by Gael Forget
388      (modifs in ecco, ctrl, autodiff)
389    o Benign bug fix in initialization (spotted by M. Mazloff) of
390      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
391    
392  checkpoint58c_post  checkpoint58c_post
393  o adjoint: finish NLFS adjoint and provide reference output in  o adjoint: finish NLFS adjoint and provide reference output in
394    verification/global_ocean.90x40x15/results_ad_nlfs    verification/global_ocean.90x40x15/results_ad_nlfs

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