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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.786 by dimitri, Sat Apr 14 18:32:32 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
8      vertical diffusivity, similar to that in MOM4; turned on using
9      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
10      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
11    o Added capability for 3D specification of background vertical diffusion
12      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
13      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
14      "data" file that contains the 3D vertical diffusivity coefficients.
15    o ice dynamics (pkg/seaice) with thsice thermodynamics:
16      - add code within pkg thsice to advect & diffuse sea-ice fields
17      similar to (and will replace) what has been added in  seaice_advdiff.F,
18      but: - conserving Mass, Heat & Salt.
19           - better when using non-linear advection scheme (not yet fully tested)
20           - can also be used in atmospheric set-up (for now, only the diffusion).
21    
22    checkpoint58x_post
23    o IO option for global-file compact format:
24      - add options when generating topology (utils/exch2/matlab-topology-generator)
25      - add I/O capability (pkg/mdsio).
26      - adapt utils/matlab/rdmds.m to read this format.
27      for now long-line format not yet supported by pkg/mdsio (& exch2).
28    o shelfice: add a few diagnostics
29    
30    checkpoint58w_post
31    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
32      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
33      (and replace horiVertRatio in NH code).
34      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
35                         and tutorial_plume_on_slope (sensitive to truncation)
36    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
37      directly to drive seaice model (C-grid only)
38    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
39     - reintroduce computation of wind from stress,
40     - compute tau (in exf_bulkformulae.F) from windstress averaged to
41       mass points to avoid tau = 0
42     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
43    o rdmnc.m: make it work with "global" files created with gluemnc
44    o rdmnc.m : some improvements in dealing with singleton dimension
45      (tested on all testreport mnc output files).
46    o genmake2: disable pkg/profiles if netcdf test fails.
47    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
48    o move call to cal_readparms up to make calendar parameters/variable available
49      to all packages
50    
51    checkpoint58v_post
52    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
53      useDynP_inEos_Zc tested.
54    o pkg/exf: changes to properly interpolate/mask/scale initial fields
55    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
56      and portions thereof.  See read_cs.txt for description and examples.
57    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
58      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
59      following the great-circle arc between those 2 points.
60    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
61      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
62    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
63     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
64     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
65     - still needs work (not working with some options ; efficiency to improve)
66       and serious testing.
67     - use this scheme for temperature & salinity in 2 advection test exp.:
68       advect_xy & advect_xz, respectively.
69    
70    checkpoint58u_post
71    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
72    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
73    o testreport: add option "-skipdir" to skip some test.
74    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
75      momentum calculation.
76    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
77    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
78      remove checkpoint.F and the_correction_step.F (no longer used);
79      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
80    o add option (linFSConserveTr) to correct for tracer source/sink due to
81      Linear Free surface
82    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
83    o pkg/thsice: fix reading mnc-pickups
84    
85    checkpoint58t_post
86    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
87    o pkg/mdsio:
88     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
89       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
90       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
91     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
92     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
93       either MDS_READ_FIELD or MDS_WRITE_FIELD )
94     - new S/R (to replace MDSWRITEMETA), which allows to write more
95       informations (variable names, time ...) to meta files.
96     - modify rdmds.m to give back the meta file content.
97    o pkg/diagnostics: change vertical interpolation to be safer, and more
98       flexible (define p-levels to interpolate to in data.diagnostics);
99      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
100       diagnostic pointer.
101    o pkg/seaice: more cleaning up of seaice_growth, added many comments
102    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
103    o fix multi-category seaice:
104     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
105       SEAICE_MULTICATEGORY
106     - fix short wave heat flux
107    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
108       and allow to use EVP solver. Change forward lab_sea: test both EVP
109       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
110    o Initial check-in of lab_sea adjoint
111      (very similar to natl_box_adjoint/code_seaice)
112      * used C-grid and EVP solver
113      * used KPP, GM/Redi
114      * uses inAdExact=.TRUE.
115      * gradient checks fail for both ADM and TLM
116        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
117        f.d. gradients actually seem more problematic than ADM, TLM gradients;
118        issue is related to forward mismatch between g77 an ifort
119    o pkg/seaice: overhaul of thermodynamics
120     - growth.F and groatb.F are replaced by new routine seaice_growth.F
121     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
122     - move a few global fields out of SEAICE.h into seaice_growth.F and
123       make them 2D (FICE/QNETO/ ...)
124     - remove FO (it is the same as QNETO)
125     - introduce a few local fields to avoid modifying external fields such
126       as atemp, etc.
127    
128    checkpoint58s_post
129    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
130      changed exf_set_gen.F so that
131        genperiod=0 means input file is one time-constant field and
132        genperiod=-12 means input file contains 12 monthly means
133    o CG2D: use pre-computed solver main-diagonal (stored in common block);
134      this affects truncation error ; generate new output file for exp. which
135      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
136        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
137        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
138        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
139        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
140        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
141    o start implementation of deep-atmosphere and anelastic formulation
142    o verification: remove 2nd copy of input files and use script "prepare_run"
143      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
144    o mom_common/vecinv/fluxform: fix a few initialisation isssues
145    o profiles: fix for multithreaded case
146    
147    o diagnostics: rename few diags:
148      s/'PRESSURE'/'RCENTER '/g
149      s/'TICE    '/'oceFreez'/g
150      s/'TAUX    '/'oceTAUX '/g
151      s/'TAUY    '/'oceTAUY '/g
152      s/'SWFLUX  '/'oceQsw  '/g
153      s/DIFx/DFxE/g
154      s/DIFy/DFyE/g
155      and add few ocean-forcing diagnostics:
156      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
157    o modifications to pkg/seaice/growth.F and budget.F, which change results of
158      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
159      as actual snow thickness.  It now refers everywhere to effective snow
160      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
161    
162    checkpoint58r_post
163    o modifications to pkg/seaice/growth.F, which change results of
164      lab_sea experiment: fixes pertain to melting snow over open water, to
165      masking EVAP under sea ice, and to using the correct AREA variable for
166      computations of EVAP, PRECIP, HSNOW, and GHEFF
167    o add ability to read bathy, salt, and theta using MNC (off by def)
168    o add flooding algorithm and advection of HSNOW for pkg/seaice;
169      both are turned off by default and do no change any results
170    o seaice advection with pkg/thsice: a step toward the use of non-linear
171      advection scheme, but #ifdef or commented out for now (requires more EXCH).
172    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
173      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
174      in natl_box (affects results @ truncation level: update output.txt)
175    o multi-threading and IO:
176      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
177      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
178        (needed to work with SingleCpuIO): tested in all verif. exp.
179    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
180      affects the results (but none of the verification test uses this scheme).
181    o Adding some pkg/diagnostics capability to pkg/seaice
182      (will certainly be subject to changes)
183    o ctrl: adding new control variables:
184      lwflux, lwdown, evap, snowprecip, apressure, runoff
185    
186    checkpoint58q_post
187    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
188      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
189      high_res_cube configuration by 4% on Columbia.
190    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
191      add (in global_with_exf/code) a version of EXF_INTERP_READ without
192      dynamical allocation (seems to work in multi-threaded).
193    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
194      single CPU io) so that TAF does not have to see EESUPPORT.h
195    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
196    
197    checkpoint58p_post
198    o obcs: stop if obcs is used with useCDscheme = .true.
199    o shelfice:
200     - fix a sign error so that no slip at shelfice interface works
201     - remove stop for combination non-hydrostatic code and shelfice. That does
202       not mean, that the results are correct, but at least they are numerically
203       stable
204    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
205    o added adjoint exch routined for all exch*3d* routines
206      and updated flow directives
207    
208    checkpoint58o_post
209    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
210      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
211    o change controling S/R for writing pickup file (new S/R do_write_pickup)
212      and clean-up reading/writing of pickup files.
213    o fix local version of read/write pickup (NH part) in rotating_tank/code
214    o simplify EXCH interface:
215     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
216     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
217    o added the regrid package
218    o shelfice:
219     - add a simple boundary layer scheme to reduce noise
220     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
221    
222    checkpoint58n_post
223    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
224       local variable (not in common block).
225    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
226      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
227      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
228        to work with SingleCpuIO.
229    o add "_d 0" to real constant of pkg/cfc subroutines ;
230       update exp. cfc_exemple & tutorial_cfc_offline output files.
231    o multi-threading and IO:
232      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
233        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
234      - barrier before and after reading.
235      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
236      - avoid using MDS_WRITELOCAL for LAND pkg output.
237      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
238        common-block variables ; Allows multi-threading with master-thread IO.
239    o change default MAX_NO_THREADS from 32 to 4 ;
240      and stop cleanly when MAX_NO_THREADS is too small.
241    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
242    
243    checkpoint58m_post
244    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
245       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
246    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
247       keep global_ocean.90x40x15 (for AD testing) with former secondary test
248       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
249    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
250        add MITgcm_tutorials (= code + all the tutorials)
251    o ecco, option to compute cost for total ssh (mean+anom)
252    o consistent with addition of ptracer and ssh in pkg/profiles
253    o profiles: adding ptracer and ssh
254    o testreport: change multi-test output-file name
255      (from output.txt.{name} to output.{name}.txt)
256    o profiles: now ok for mutli-tiles case
257    o seaice: add 4 parameters for different advection schemes for area,
258      (effective) seaice thickness, enthalphy, and snow height. Their default
259      is the standard parameter SEAICEadvScheme
260    o calc_gw:
261     - add cosFacU in zonal viscous flux (harmonic.visc.).
262     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
263       of tutorial_plume_on_slope.
264    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
265    o calc_gw: true flux-form, account for horizontal grid spacing.
266      update rotating_tank results, but not plume_on_slope (affected at
267      truncation level, 11 digits).
268    
269    checkpoint58l_post
270    o calc_gw:
271     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
272     - remove side-drag for now (need to fix it); update plume_on_slope results.
273     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
274    o commit code to make SST/SSS weights spatially variable
275      (based on either variable in-situ or variable initial T/S weights)
276    o pkg/ecco:
277      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
278        now based on horizontally varying weights wthetaLev, wsaltLev
279      * cost_averagesflags now returns year indices in addition to day, month
280      * sflux balance is performed on annual basis
281        (sflxumm, sfluxmm2, bal_sfluxmm)
282      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
283        including separate counting and multipliers
284    o pkg/rbcs
285      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
286    
287    checkpoint58k_post
288    o testreport:
289     - always build in dir. "build" (if not there, mkdir build instead of building
290       & running in input)
291     - run in dir run (if it exists), in build otherwise.
292     - call prepare_run (if input/prepare_run exists)
293     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
294    o pkg/exf modifications to interpolation and rotation routines for more
295       reasonable treatment of North Pole singularity: for tracers North Pole
296       value is set to northernmost zonal-mean value, for zonal velocity it is
297       set to zero, and for meridional velocity it is set to northernmost value.
298    o pkg/exf/exf_check_range.F
299     - add tile index to diagnostics and move stop statement to the very
300       end of the routine.
301    o pkg/diagnostics: (diagnostics_main_init.F)
302      define title of isomorphic variables according to the current config.
303    o pkg/thsice with pkg/seaice dynamics:
304    - fix domain of computation (interior only, required for exf) and do exchanges
305    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
306    o towards a standard way of dealing with multi-threading in MONITOR
307      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
308    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
309       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
310    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
311    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
312    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
313       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
314    o tracer advection:
315     - clean-up and simplify calc_common_factors.F
316     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
317       advection subroutine (but still not used within DST advection S/R)
318    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
319    
320    checkpoint58j_post
321    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
322      from file (collects calls previously in FORWARD_STEP)
323    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
324    o adjoint store dir. adjusted accordingly
325    o genmake2
326      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
327    
328    checkpoint58i_post
329    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
330      on wind stress (SEAICEstressFactor defaults to 1.)
331    o Total number of Timers is finite (<=40): comment out 2 non-essential one
332      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
333    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
334      on CS-grid: no longer loosing mass.
335    o exf & curvilinear-grid: no longer modify longitude xC & xG.
336    o pkg/ggl90: fix sloppy output and fix a bug
337    o pkg/seaice: added SEAICEuseEVPpickup parameter
338      - Set to false in order to start EVP solver with
339        non-EVP pickup files when using SEAICEuseEVP
340      - fix sign error in diffusion in seaice_calc_rhs
341    
342    checkpoint58h_post
343    * Modifications for bottom topography control
344      o replace hFacC by _hFacC at various places
345      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
346      o add non-self-adjoint cg2d_nsa
347      o update autodiff support routines
348      o re-initialise hfac after ctrl_depth_ini
349      o works for 5x5 box, doesnt work for global_ocean.90x40x15
350    * Adding verification for 5x5 box (4-layer) bottom topography control
351    
352    checkpoint58g_post
353    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
354       used for mean seasonal cycle, mean diurnal cycle); add an example
355       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
356    o pkg/ggl90:
357      - add parameter (minimum surface kinetic energy)
358      - fix bug (avoiding division by zero)
359    o couple pkg/thsice to pkg/seaice:
360      - modify advection in seaice to accomodate new scalar fields to be advected
361      - only muliDimAdection scheme work with seaice/thsice
362      - mapping of thsice-variables to seaice-variables, back and forth
363      - does not break the verification experiments, but does not give the
364        desired results either
365    o pkg/seaice
366      - make (default) second order advection a bit less confusing?
367    
368    checkpoint58f_post
369    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
370      to pkg/seaice):
371      - new routines thsice_map_exf and thsice_get_exf provide the interface
372      - add an additional formal parameter to thsice_solve4temp
373    o pkg/exf:
374      - add new fields wspeed, snowprecip (to be able to couple to thsice)
375      - correct Stefan-Boltzmann constant
376      - new parameter for longwave surface emittance
377      - separate some stuff from exf_bulkformulae into new routines  
378        exf_radiation, exf_wind
379      - add new parameters and constants: longwave emissivity for ocean, ice
380        and snow, evaporation parameters over ice
381      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
382        either wind from stress or stress from wind
383    o pkg/thSIce:
384    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
385    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
386       and THSICE_CALC_THICKN
387    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
388    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
389      to make debugging easier.
390    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
391    o pkg/bulk_force:
392      - clean-up comments and parameters ;
393      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
394    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
395      generate new output for test-experiment: aim.5l_cs.thSI
396    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
397      testreport accordingly
398    
399    checkpoint58e_post
400    o SEAICE_CGRID adjoint done
401    o R_STAR adjoint implemented.
402      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
403      * need to sort out init. of h0facc, etc.
404    o Make pkg/profile fully independent of ecco,cost, etc. stuff
405      to be able to use it in pure forward.
406    
407    checkpoint58d_post
408    o upgrade simple test-experiment to tutorial example:
409     step.1: duplicate the experiment and (step.2) will remove the old copy.
410      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
411      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
412      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
413      tutorial_global_oce_biogeo    <- copy of dic_example
414      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
415      tutorial_plume_on_slope       <- copy of plume_on_slope
416      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
417      tutorial_global_oce_optim     <- empty for now (David ?)
418      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
419     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
420    o correct a sign problem in cost_scat.F
421    o obcs and ptracers: fix boundary conditions for advections schemes
422      with larger stencil
423    o thsice adjoint: start
424    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
425      completeness
426    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
427      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
428    o ptracers adjoint:
429      * avoid extensive recomputatations
430      * fix missing re-init. of gptr (missed by TAF)
431    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
432      me to turn off the excessive output to STDOUT that this package produces
433    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
434      and add those terms in Vector-Invariant formulation.
435    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
436      if the control period (xx_hfluxperiod etc) is 0
437    o in profiles pkg, clean routines and fix details
438    o in ecco pkg, reading ssh data:
439      fix problem in case the model does not start at iter0=0
440    o fix mnc-pickup/restart for ptracers
441    o new package prifiles:
442      code to compute profile-based cost by Gael Forget
443      (modifs in ecco, ctrl, autodiff)
444    o Benign bug fix in initialization (spotted by M. Mazloff) of
445      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
446    
447    checkpoint58c_post
448    o adjoint: finish NLFS adjoint and provide reference output in
449      verification/global_ocean.90x40x15/results_ad_nlfs
450    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
451      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
452      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
453      with SEAICE_CGRID defined.
454    o move calendarDumps from "data" to "data.cal" and clean-up the code
455      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
456    o add useEXF & useCAL flags (for now, set in hard-coded way)
457    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
458      (were missing in NH mode, and wrong in quasihydrostatic mode).
459      waiting for Chris updated version of calc_gw to add those CALLs.
460    o fix bug in quasihydrostatic S/R ;
461      add a test for this option: global_ocean.90x40x15.qshyd
462    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
463      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
464    o add on/off flag useOffLine for package OFFLINE
465    o seaice:
466      - modify advection so that it works also on the C-grid
467      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
468        problem in multi-tile runs with C-grid
469      - add flags for clipping ice velocities and/or masking solver forcing
470      - fix drag (ocean on ice) formulation and a bug that caused noise in the
471        C-grid solver
472      - added a few comments to seaice_diffusion.F
473      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
474        are now exclusive)
475      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
476        required re-ordering the code a little:
477       + make DAIRN global variable (defined in SEAICE)
478       + move computation of the viscosities eta and zeta into a new separate
479         routine (because I need to recompute them in seaice_ocean_stress.F)
480    
481    checkpoint58b_post
482    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
483      update output.txt of exp. aim.5l_cs.thSI
484    o various mnc cleanups and improvements:
485      + shrink lookup tables by factor of ~4
486      + better error reporting when running out of lookup space
487      + able to handle longer path/file names (up to 500 chars)
488    o adjoint:
489      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
490      - TBD: "hidden" mom_vecinv recomp. in dynamics
491    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
492     (allow to differentiate between forcing components using new integer flags:
493      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
494     and add new flag to put Dissipation tendency out of Adams-Bashforth.
495    o ecco
496      - enable trend removal from SSH anomaly obs.
497    o adjoint
498      - a fix for PmEpR when #undef EXACT_CONSERV
499      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
500      - try to fix "hidden" recomp. in forward_step for NLFS
501        (NLFS seems broken sometimes after I checked it in)
502    o seaice:
503     - add c-grid version of the dynamic solver:
504       + three new routines that are the c-grid substitute lsr, dynsolver
505         and ostres
506       + put a few fields that were local to dynsolver into global common
507         blocks, so that I can move the computation of stresses etc into
508         seaice_lsr (saves coding but may break the adjoint).
509     - replace more hardwired parameters by runtime parameters
510     - add ice masks that mask the rhs of the implicit solvers where there
511       is no ice (commented out in seaice_dynsolver, because i am not sure
512       if this works properly), eventually this should replace the clipping
513       of ice velocities in seaice_dynsolver to +/-40cm/s.
514    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
515      include it only where its needed
516    o move balancing of fluxes before the call of external_forcing_surf
517    o seaice:
518      - correct units of turning angles (now they are really in degrees)
519      - move computation of GWATX/Y out of main routine into dynsolver
520      - initialize GWATX/Y in seaice_init
521    o Apply mask on Fresh-Water flux (needed for SSH forcing).
522      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
523    o seaice: add runtime flags for turning angles (default to zero)
524    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
525      and trend from exf forcing and ctrl control adjustments
526    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
527      (since checkpoint57x_post)
528    o change the default rotation period to 86164.s = the Earth rotation
529    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
530      and based on a reference stratification. Tested within hs94.cs-32x32x5.
531    o seaice advection: add code for choosing between the default (2nd order
532      central differences) and multiDim advection schemes provided by
533      pkg/generic_advdiff
534    o seaice:
535      - removed all references to SEAICE_GRID.h fields from
536        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
537        (cubed-sphere configuration will change a little)
538      - grid computations in seaice_init are obsolete now.
539      - cleaned up code a little so that is easier to read (hopefully).
540      - added new (better?) discretizations of default advection and diffusion
541        (turn on with SEAICEuseFluxForm)
542      - replace 1 in 3d global fields by kSurface in growth.F
543      
544    checkpoint58a_post
545    o seaice:
546      - bug fix in advect.F
547    o shelfice:
548      - separate shelfice load anomaly from pload (breaks with time
549        dependent forcing), => introduce constant field shelficeLoadAnomaly.
550        Its default is 0., but it may be computed more cleverly from (unknown)
551        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
552        done offline. A good approximation of the pressure load anomaly is
553        necessary to avoid large initial adjustment processes underneath
554        deep-reaching shelfice.
555      - small fix in ISOMIP shelfice_thermodynamics
556      - add more sophisticated thermodynamics of Hellmer (1989), this is
557        now the default
558      - give a few constants more intuitive names
559    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
560      if bulk formulae are used in long integration (especially EmPmR). Turn
561      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
562      if balancePrintMean, the imbalance that is substracted is printed to
563      STDOUT.
564    o fix bug (typo) in obcs_apply_eta.F
565    o add a new package shelfice which enables us to model the circulation
566      underneath shelf-ice with draughts of hundreds of meters.
567     - works
568     - to do: + include improved thermodynamics
569              + check whether kSurfC (from model/inc/SURFACE.h) can be used
570                instead of new field kTopC
571              + can we use topoFile, Ro_surf and existing code in ini_depth.F
572                instead of new field R_shelfIce and new code in ini_depth.F
573                and ini_mask_etc.F?
574              + adjust vertical mixing schemes?
575    o seaice pkg:
576     - add a cpp-flag to include a simple formula for a salinity dependent
577       freezing point of sea water at the surface
578     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
579       meridional stresses are now different (and hopefully correct)
580    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
581       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
582       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
583    o pkg/diagnostics: add options and parameters for regional-statistics
584       diagnostics ; define regions by reading a region-mask from a file
585       (might add other options later)
586    o pkg/bulk_force:
587     - add option and parameters to use AIM surface-flux formulae.
588     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
589       others forcing fields (defined in PARM05, parameter file "data") are loaded
590       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
591     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
592     - use the right EXCH call for uwind,vwind (to work on CS-grid).
593     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
594       and parameters (note: calcWindStress replaces .NOT.readwindstress).
595     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
596    
597    checkpoint58
598    o add "--embed-source" option to genmake2 which, when the supporting
599      tools can be compiled (as determined by genmake2) will turn on the
600      embed_files package which then embeds the entire MITgcm source code
601      (*.[fFhc] + Makefile) used for the build within the executable
602      - requested by CNH but off by default
603      - adds a paltry <9MB to the mitgcmuv executable in most cases
604      - only writes the output when useEMBEDSRC in eedata is true
605    o clean up 3-dim. relaxation codes:
606      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
607      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
608      * Thanks to Tom Haine for testing!
609    
610    checkpoint57z_post
611    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
612      affects output (@ truncation level) of exp. plume_on_slope ; updated.
613    o fix the pickup behavior for obcs in combination with ptracers
614    o fix a bug in ptracers_external_fields_load
615    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
616      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
617    o transfered surface NH pressure to eta field (if exactConserv).
618    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
619         and update lab_sea output.txt file.
620    o completing 3-dim. relaxation code: additional term
621         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
622      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
623      * At compile time, in "EXF_OPTIONS.h" set
624          #define  ALLOW_CLIMTEMP_RELAXATION
625          #define  ALLOW_CLIMSALT_RELAXATION
626      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
627          tauThetaClimRelax3Dim = 15552000.0,
628          tauSaltClimRelax3Dim  = 15552000.0,
629      * 3 cases:
630          1) Use a constant-in-time 3-dim. field
631          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
632          3) Real-time relax. to time-evolving prescribed field
633    o Adding Laplacian-type smoothness constraint on
634      initial and boundary (forcing) controls (ic, bc)
635      * enable at compile-time via
636        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
637      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
638      * Absolute scale somewhat unclear so far
639      * no area weighting was included since no other cost term does so far
640    
641    checkpoint57y_post
642    First step for a NLFS adjoint
643    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
644    o new init. routines for calc_r_star, calc_surf_dr
645    o still need to deal with ini_masks_etc
646    o testreport seemed happy
647    checkpoint57y_pre
648    
649    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
650    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
651    o add new offset feature to offline pkg (plus minor cleanup)
652    o cfc fixes for final year of integration
653    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
654      be in GCHEM_OPTIONS).
655    
656    checkpoint57x_post
657    o fix testreport Pb in multiple test experiment.
658    o cleanup our namelist syntax in verification:
659      - make it more F95 standards compliant (some work still needed)
660      - allows the vast majority of our tests to work with gfortran
661    o Non-Hydrostatic:
662     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
663     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
664    o Allow to apply AB on T,S rather than on AB(gT,gS):
665     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
666     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
667       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
668     - need a "clever" read_pickup to restart from the other AB formulation
669    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
670    o remove some unused variables (reduces number of compiler warnings)
671    o adjoint
672      * Disable useVariableViscosity for adjoint for time being
673        (there are a number of extensive recomputations)
674      * Initialize certain variables needed for adjoint
675    
676    checkpoint57w_post
677    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
678                 fix the singleCpuIO RS version of MDSWRITEFIELD
679       and add a WARNING if using globalFiles=T with multi-processors.
680    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
681      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
682    o tracer advection scheme:
683      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
684       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
685       was not very convenient).
686      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
687       (further tests needed for the implicit DST & Flux-Limiter schemes).
688    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
689      and sRef for convenience, handy, when you want to initialize
690      ptracers in a large domain with a constant non-zero value. Also,
691      untangle ptracers_init.F a little.
692    
693    checkpoint57v_post
694    o change dome exp. to use variable viscosity in side-drag terms.
695    o remove all the files from the cfc_offline test since they are now
696      incorporated into tutorial_cfc_offline which has been producing
697      identical results for a few days of testing
698    o add new parameter: sideDragFactor to enable half-slip-side BC
699      and change side-drag S/R to use viscosity from mom_calc_visc
700      (can switch back by setting sideDragFactor=0.); affects results at
701      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
702       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
703    o vorticity & strain are now computed without masking, to account for
704      no-slip-side BC in variable viscosity calculation ; mask is applied
705      anyway later on, before computing advection/coriolis terms.
706    o modify exp4 to test new obcs support for reading from external files
707      and for passive tracers
708    o fix behavior of ptracers_monitor when monitor output is written to a
709      netcdf-file; still not independent of monitor.F (writes in the same
710      file).
711    o change default value of tRef (put a uniform, meaningful value for ocean
712      & atmos) and initialize sRef (was missing, as Martin mentioned).
713    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
714      to be proportional to enstrophy dissipation length.  Thus,
715       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
716      This is now consistent with Smagorinsky and with the manual.
717    
718    checkpoint57u_post
719    o OBCS and PTRACERS: add open boundary support for passive tracers
720      - either use homogenous (pseudo) v.Neumann conditions or prescribe
721        OB-values from file; this is not different from the way theta and salinity
722        are treated
723      - however, Orlanski-radiation conditions are not supported, and the model
724        will stop if you use pTracers and Orlanski at the same time.
725      - beefed up the rountine obcs_external_fields_load: now only those open
726        boundary values are overwritten with values from files for which there
727        are really files, otherwise the OB-fields remain untouched. This makes
728        it possible to use different OBs at different ends of the domain (as
729        with EXF)
730    o reduce number of exch calls in shap_filt (s2).
731    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
732      truncation level) 4/5 MLAdjust test results (11&12 digits match).
733    
734    checkpoint57t_post
735    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
736    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
737      same truncation, independent of the face number: affects affects several
738      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
739    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
740      note that biharmonic viscosity + no-slip was not tested in any experiment.
741    o fix bug in non-linear free-surf side-drag ; generate new output for
742      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
743    o make mnc honor the writeBinaryPrec flag for most kinds of output
744    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
745    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
746      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
747    o add brackets in multi-terms sum to get same truncation, independent of
748      the face number (manage to get exactly same value of gU,gV at the cs-edge)
749      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
750    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
751      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
752      a maximum grid-scale Reynolds number.  Also, changes all length calculations
753      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
754      Suggested values of viscosity parameters found in mom_calc_visc.
755      Many new viscosity diagnostics available.
756    
757    checkpoint57s_post
758    o Add clearing-house for viscosity calculations, mom_calc_visc and
759      correct numerous bugs in LeithD and Smagorinsky discretizations.  
760      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
761      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
762      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
763      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
764      The Strain-Tension form is now called with useStrainTensonVisc=.true.
765      ViscAhStrain and viscAhTension are now retired.
766    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
767    o In response to JMC's bug report, genmake2 now ignores any soft-links
768      that it finds in the *current* directory when searching for files.
769      Soft-links found in any other source directories will still work as
770      they did before.
771    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
772      a C routine to unlimit the stack size
773    o mnc-ify pkg/aim snapshot vars
774    o mnc-ify pkg/land as requested by Daniel
775    o various changes to mnc including:
776      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
777      - output can now be grouped so that all files within a group
778          change the ITER portion of their names in lock-step together
779      - can now read ("global") PER-FACE (in addition to PER-TILE) files
780          and works with both EXCH1 and EXCH2 (but needs more testing)
781      - writing works for all verification test cases w/ g77 on Linux
782    
783    checkpoint57r_post
784    o make MNC variable initialization happen earlier
785    o add diagnostics for (almost) each term of the momentum Eq.
786    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
787    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
788    o remove MINIMAL_TAVE_OUTPUT option ;
789      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
790    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
791      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
792    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
793    o add time-dependent SST, SSS control
794    o cost terms in ecco/ modularized (new cost_generic.F)
795    o cost_averages routines are modularized (new cost_averagesgeneric.F)
796    o new infrastructure for seaice model vs. obs misfits in seaice/
797      * driver from the_main_loop.F is seaice_cost_driver.F
798      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
799      * gradient check in Exp. 6a of natl_box_adjoint/
800    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
801      (see README file)
802    
803    checkpoint57q_post
804    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
805    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
806      - bug was reported by Jean-Michel and Ian Fenty
807    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
808      update exp. cpl_aim+ocn output.
809    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
810      Needed for high-res. runs with large global files
811      to be able to limit tapelev size
812    o Changed some tests for adjoint:
813      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
814      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
815      * global_ocean.90x40x15/ back to default 3-level checkpointing
816    o Modifications to enable scripted COMMON to MODULE conversion
817      * verification/OpenAD/code/ has necessary scripts and description;
818      * converts, compiles and runs successfully;
819    
820    checkpoint57p_post
821    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
822    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
823      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
824    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
825    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
826      (was already the case for dissipation with mom_vecinv,
827       and also the case for grad.PhiHyd when staggered-timeStep)
828      This will allow to put dissipation out-off the AB time-stepping.
829     Unfortunately, affects truncation error. Update output of exp. that "fails"
830      (cg2d matching number) and leave the others for later: front_relax(10),
831      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
832      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
833    
834    checkpoint57o_post
835    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
836      (2) its ready to be documented during the 20050801 DocFest
837    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
838      for ideal_2D_oce and lab_sea on linux_ia32_g77
839    o set to #undef CTRL_SET_OLD_MAXCVARS_30
840      in global1x1_tot/code_seaice_adj to access indices 32, 33
841      (worth another tag)
842    
843    checkpoint57n_post
844    o adding precip control xx_precip 32
845    o adding swflux control xx_swflux 33
846    o Replacing 10 forcing penalty cost routines by 1 generic.
847    o Implementing partitioning in time-mean and variable adjustment
848      for atmos. state.
849    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
850    o in natl_box_adjoint:
851      * updated exp 1 to 10
852        (but does not have time-mean vs. variable split results yet)
853    o updated global1x1/*_seaice_adj/
854      to incorporate latest changes
855    o enable useSingleCpuIO for mdsio vector routines
856      (applies in particular to tapelev I/O)
857    o removed inefficient K-loop in all active_file*control*.F
858    
859    checkpoint57m_post
860    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
861      and advect_cs (use EXCH-2 and standard cs-32 grid files).
862    o pkg/exch2: filling of face-corner halo regions is optional
863      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
864    
865    checkpoint57l_post
866     tag before updating tutorials (pre-release-2)
867    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
868       for output and interpolation of input fields onto model grid)
869    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
870       Affects results of exp. rotating_tank ; update output.txt.
871    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
872          and taking the square quantity and/or using a fraction-weight field.
873    o fix aim_diagnostics_init.F mate numbers.
874    o add mnc output capability to diagnostics/diagstat and update
875      our cvsignore files for the ACSII output generated
876    
877    checkpoint57k_post
878    o lab_sea now uses diagnostics package and provides a suite of
879      new EXF diagnostics output.
880    
881    checkpoint57j_post
882    o exf
883      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
884        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
885        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
886      * extended diagnostics output
887        - now includes all EXF variables
888        - hs, hl moved to common block
889        - separate S/R for diagnostics, called after ctrl vector is added
890        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
891        - EXFqnet contains true Qnet (i.e. includes qsw)
892      * updated verif. lab_sea, global_with_exf
893      * Rearranging hflux (exf_mapfields -> exf_getforcing)
894        to ensure that diagnostics sees a true EXFqnet
895    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
896    o diagnostics pkg: change pointers so that 1 diagnostic can be used
897      several times with different frequencies.
898    o mnc-ify the thsice package as requested by Daniel Enderton
899      - the monitor--MNC output needs work
900      - many attributes need to be added (most are currently blank)
901    o mnc-ify theaim_v23 package as requested by Daniel Enderton
902      - many attributes need to be added (most are currently blank)
903    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
904    o add Sadourny like discretization to the 4th.O vorticity advection scheme
905    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
906      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
907         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
908    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
909     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
910    
911    checkpoint57i_post
912    o Diagnostics package was changed: diagnostic allocation is now deactivated
913      by setting an empty file name in the namelist (used to be by setting 0 frequency)
914    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
915      add 1rst Order upwind vertical Shear.
916    o add a quick fix for A/B checkpointing in OFFLINE mode
917    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
918      end-run around the C/Fortran linking horror in eesup/src/timers.F
919    o added pkg/runclock: allows user to terminate run based on wall clock
920    o added non-hydrostatic scaling parameter: nh_am2
921    o pkg/my82: futile attempt to make results compiler-independent by adding
922      some "_d 0", etc. no effect.
923    o for mnc output, fill the 'T' coordinate var with myTime and create a
924      separate 'iter' variable for iteration count
925    o pkg/diagnostics:
926      add new capability: output of Global/Regional & per-level statistics ;
927      tested against monitor output (including land & thSIce) on various exp.
928    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
929    
930    checkpoint57h_done
931      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
932      data.diagnostics, data.gchem, data.ptracers) is done.
933    
934    o pkg/diagnostics: prepare for Global/Regional statistics.
935      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
936    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
937      and rename it: DIFFERENT_MULTIPLE
938    
939    checkpoint57h_post
940    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
941    o pkg/diagnostics: change output frequency, now in seconds (instead
942      of Nb of iterations). This requires to change data.diagnostics.
943    checkpoint57h_pre
944    
945    o in mnc, let the user create the output dir if both mnc_outdir_date
946      and mnc_outdir_num are false
947    o add fflags() to pkg/diagnostics which allows one to specify, on a
948      per-file basis, the file precision [default behavior is unchanged]
949    o added diagnostics to pkg/kpp, including computation of mixed layer
950      depth based on a temperature/density criterion
951    o updated verification/natl_box to test the new pkg/kpp diagnostics
952    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
953    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
954    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
955      not mnc -- this mistake was found by JMC and is now corrected
956    
957    checkpoint57g_post
958    o add Adams-Bashforth 3rd Order time stepping:
959      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
960      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
961    checkpoint57g_pre
962    
963    o make lambda[Theta,Salt]ClimRelax spatially varying
964      (default remains spatially uniform constant based on tau)
965    o added new control variables
966      * init. uVel, vVel, etanN
967      * lambda[Theta,Salt]ClimRelax
968    o separate masks used for ctrl_pack/unpack 'from write_grid' output
969      (suggested by G. Forget)
970    
971    checkpoint57f_post
972    o add parameter "baseTime" = model base time = time at iteration zero
973      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
974      account for baseTime shift
975    o move Coriolis arrays from PARAMS.h to GRID.h
976    checkpoint57f_pre
977    
978    o mnc-ifying the seaice package
979    o introduced an alternative length scale calculation for use in the limiting
980      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
981    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
982    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
983      as well as grad(vort3).  Made it compatible with both approximate form
984      for the cubed sphere and full form of these gradients.  Added flag
985      useFullLeith to select between approximate and full form.  
986    o add "d0" in getcon.F to reduce differences between compilers/platforms
987      update output.txt of exp. fizhi-gridalt-hs
988    o change port_rand funtion to allow to set the seed.
989    o fix obscure MNC bug involving conversion between reals and integers
990      - it caused no problems with certain (eg. gcc, ifc) compilers but the
991        new version is now more standards-compliant
992    o adjoint-related modifications
993      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
994      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
995      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
996    
997    checkpoint57e_post
998    o Adding eddy stress controls a la Ferreira et al.
999    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1000    
1001    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1002      update output.txt of exp. fizhi-gridalt-hs
1003    o add more "Z" dimensions and associated coordinate vars to MNC
1004    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1005    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1006      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1007      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1008      months and years.  Requires pkg/cal.
1009    o diagnostics: add pickup functionality
1010      - off by default for backwards compatibility
1011      - current version only uses MDSIO -- MNC will be added
1012    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1013    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1014    
1015    checkpoint57d_post
1016    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1017    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1018      output from the diagnostics package
1019    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1020    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1021      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1022    o add coordinate variables to the MNC output from the diagnostics package
1023    o change MNC-flags default value: true when useMNC=TRUE
1024    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1025      the ability (off by default) to read the grid information using MNC
1026    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1027    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1028    o do snap-shot diagnostics at the middle of the time-interval (instead of
1029      at the end).
1030    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1031      new test for AIM with thSIce + slab-ocean
1032    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1033    o move state variable diagnostics to the beginning of the time step ;
1034      (note: still needs some work specially for snap-shot diagnostics)
1035      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1036    
1037    checkpoint57c_post
1038    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1039    o generate new output.txt files on faulks with g77 & the new -ieee option
1040    checkpoint57c_pre
1041    
1042    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1043      update output.txt of exp. global_ocean.90x40x15
1044    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1045      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1046    o add saltFlux(+File) forcing capability with periodicExternalForcing
1047    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1048    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1049    o improvements for the MNC output from DIAGNOSTICS:
1050      - correct handling of the unlimitied dimension
1051      - all dims now have associated coordinate variables
1052      - variables located at U, V, and Corner ("Z") points are now written
1053        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1054        *all* data points are output
1055    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1056    o added pkg/seaice/seaice_monitor.F
1057    o mdsio_readfield.F can now read files visible only to master MPI process.
1058    o pkg/seaice: some test code for ice-modified ocean stress
1059    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1060      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1061      spurious negative numbers for precipitation and humidity.  Will cause
1062      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1063    o pkg/ctrl/
1064      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1065        May be enabled via doPackDiag
1066      *  introduce z-scaling of
1067         + gradient (doZscalePack) and
1068         + control (doZscaleUnpack)
1069    o pkg/mdsio/
1070      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1071      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1072    
1073    checkpoint57b_post
1074    o simplify options in diagnostics_fill arguments (remove weird combinations)
1075    o fix MNC coordinate variables so that they now contain per-face index
1076      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1077      general, EXCH2 grids are only aligned to a "local" coordinate system
1078    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1079    o Implement instantaneous output within pkg diagnostics:
1080      setting a negative frequency in data.diagnostics produces
1081     "snap-shot" output (as opposed to time-average if freq > 0)
1082    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1083      NOTE: change ptracer diagnostics name: use 2 characters to work with
1084            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1085    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1086      becomes the coordinate variable for the 'T' dimension
1087    o add CF-style coordinate variables to MNC
1088      - just a first cut:  numbers are meaningless on the cubesphere and
1089        missing along the T axis but otherwise it works!
1090    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1091    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1092    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1093      this is based directly on what the model compute, so that the content of
1094      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1095    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1096    o clean up build options files for SunOS, in particular
1097      - remove -traditional from xmakedepend
1098      - change -xarch=v9 to -xarch=native for f77
1099      - restore use of make (not gmake)
1100      - add CC=gcc if using g77
1101    o changes per discussion of AM, JMC, & EH3 today:
1102      - move redundant "grid" variables out of "state" -- in preparation of
1103        creating proper CF-style coordinate variables and in recognition
1104        that any/all grid variables can be easily copied (eg. w/NCO) from
1105        the grid files into any of the other NetCDF files
1106      - *always* output grid variables with MDSIO (this will eventually be
1107        changed)
1108      - output MNC grid file if useMNC is true
1109    o every instance of _END_MASTER() has been found and replaced with
1110      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1111      preprocessors
1112    o re-arrange diagnostics pkg initialisation:
1113     - allow each package to extend the available diagnostics list
1114     - add some checking and fix small problems (multi-threaded, ...)
1115     - new S/R diagnostics_fill (replace fill_diagnostics):
1116       look through the short list of active diag. (instead of the long list)
1117       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1118    
1119    checkpoint57a_post
1120    o this set of changes restores TAMC compatibility
1121      tested for global_ocean.90x40x15 adjoint on trough
1122      (what a pain)
1123    
1124    checkpoint57a_pre
1125    o some modifs in tools/build_options for sunos
1126    o call ctrl_pack for ctrl at end for optimcycle=0
1127    
1128    checkpoint57
1129    o add horizontal bi-harmonic viscosity for vertical velocity
1130      - new parameter viscA4W (defaults to viscA4)
1131      - affects only non-hydrostatic code
1132      - to be done: no-slip lateral boundary conditions
1133    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1134    o implement Implicit Vertical advection for pTracers
1135    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1136      (implemented also for implicit vertical diffusion & advection)
1137    o OBCS: extend application of tracer open boundary conditions
1138      to a strip beyond the boundary of width Olx/Oly
1139    o add call monitor to TAF set of required calls (flow directives)
1140      and include in natl_box_adjoint
1141    o untangle a few ifdefs related to cost, ctrl, autodiff
1142      untangel a few ALLOW_ECCO_OPTIMIZATION
1143    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1144      (theta2, salt2 in ecco_cost_weights)
1145    
1146    checkpoint56c_post
1147    o OBCS as control variables
1148      - update ctrl_ad_diff.list, obcs_ad_diff.list
1149      - remove balance of obcs controls from default
1150      - fix index bug nobcs in ctrl_init
1151      - fix dummy fields filen in ctrl_pack
1152      - add dummy weights for obcs
1153    o lsopt: comment out fort.94 output
1154    o optim:
1155      - remove unnecessary header files
1156      - adjusted namelists
1157      - add xerbla.F to Makefile
1158    o exf:
1159      - multiple modifications of exf_check_range
1160      - unit change in exf_init_runoff from [m/year] to [m/s]
1161    o mdsio:
1162      - i/o-vector change debugLevel from debLevA to debLevB
1163    
1164    checkpoint56b_post
1165    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1166      is called from DO_THE_MODEL_IO
1167      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1168      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1169      - clean up PTRACERS_WRITE_TIMEAVE a little
1170    o add another verification experiment that tests both the cfc-pkg and
1171      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1172      reactive tendencies treated inline with regular timestepping
1173    o testreport previously did a lousy job of comparing small numbers, so
1174      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1175      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1176      testreport.
1177    o ptracers_monitor: bug fix for MPI
1178    
1179    checkpoint56a_post
1180    o GCHEM: finish reorganizating the package
1181      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1182        (introduces another 3D-array for each passive tracer, but only if
1183        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1184        gchemTendency is not needed because the timestep is done separately)
1185      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1186      - GCHEM is now---more or less cleanly---separate from PTRACERS
1187      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1188        so clear to me how that should be done in a general way.
1189    o CFC: improve formatting of output in CFC_ATMOS
1190    o PTRACERS:
1191      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1192        that ALL experiments with ptracers enable can be checked. This makes
1193        GCHEM_MONITOR obsolete.
1194      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1195        monitorFreq
1196      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1197    o add PTRACERS (PTR0[1-5]) to testreport output
1198    o exf_check_range:
1199      * default changed to .TRUE.
1200      * will check values for niter0 if debLevA, every timestep if debLevB
1201      * STOP in exf_check_range if 'out of range'
1202      * range chosen generous to allow for potential extema
1203      TBD: a version with stricter range
1204           permitted range would be runtime parameters
1205  o GMredi:  o GMredi:
1206    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1207    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1210  o GCHEM:
1210    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1211      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1212    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1213      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1214        this flag is now only visible within GCHEM-pkg routines.
1215      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1216        be replaced by a 3D array that is computed before thermodynamics; for
1217        this, the tracer ID iTracer had to be included into the parameter list
1218        of ptracers_forcing
1219      - set up forward_step to call gchem_forcing, that will replace
1220        gchem_forcing_int in ptracers_forcing
1221      - cleaning up
1222  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1223    
1224  checkpoint56  checkpoint56

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