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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.761 by jmc, Sat Dec 30 00:18:09 2006 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 pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
8    o pkg/mdsio:
9     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
10       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
11       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
12     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
13     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
14       either MDS_READ_FIELD or MDS_WRITE_FIELD )
15     - new S/R (to replace MDSWRITEMETA), which allows to write more
16       informations (variable names, time ...) to meta files.
17     - modify rdmds.m to give back the meta file content.
18    o pkg/diagnostics: change vertical interpolation to be safer, and more
19       flexible (define p-levels to interpolate to in data.diagnostics);
20      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
21       diagnostic pointer.
22    o pkg/seaice: more cleaning up of seaice_growth, added many comments
23    o pkg/exf: put runoff0 and runoff into the appropriate common block
24    o fix multi-category seaice:
25     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
26       SEAICE_MULTICATEGORY
27     - fix short wave heat flux
28    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
29       and allow to use EVP solver. Change forward lab_sea: test both EVP
30       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
31    o Initial check-in of lab_sea adjoint
32      (very similar to natl_box_adjoint/code_seaice)
33      * used C-grid and EVP solver
34      * used KPP, GM/Redi
35      * uses inAdExact=.TRUE.
36      * gradient checks fail for both ADM and TLM
37        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
38        f.d. gradients actually seem more problematic than ADM, TLM gradients;
39        issue is related to forward mismatch between g77 an ifort
40    o pkg/seaice: overhaul of thermodynamics
41     - growth.F and groatb.F are replaced by new routine seaice_growth.F
42     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
43     - move a few global fields out of SEAICE.h into seaice_growth.F and
44       make them 2D (FICE/QNETO/ ...)
45     - remove FO (it is the same as QNETO)
46     - introduce a few local fields to avoid modifying external fields such
47       as atemp, etc.
48    
49    checkpoint58s_post
50    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
51      changed exf_set_gen.F so that
52        genperiod=0 means input file is one time-constant field and
53        genperiod=-12 means input file contains 12 monthly means
54    o CG2D: use pre-computed solver main-diagonal (stored in common block);
55      this affects truncation error ; generate new output file for exp. which
56      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
57        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
58        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
59        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
60        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
61        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
62    o start implementation of deep-atmosphere and anelastic formulation
63    o verification: remove 2nd copy of input files and use script "prepare_run"
64      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
65    o mom_common/vecinv/fluxform: fix a few initialisation isssues
66    o profiles: fix for multithreaded case
67    
68    o diagnostics: rename few diags:
69      s/'PRESSURE'/'RCENTER '/g
70      s/'TICE    '/'oceFreez'/g
71      s/'TAUX    '/'oceTAUX '/g
72      s/'TAUY    '/'oceTAUY '/g
73      s/'SWFLUX  '/'oceQsw  '/g
74      s/DIFx/DFxE/g
75      s/DIFy/DFyE/g
76      and add few ocean-forcing diagnostics:
77      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
78    o modifications to pkg/seaice/growth.F and budget.F, which change results of
79      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
80      as actual snow thickness.  It now refers everywhere to effective snow
81      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
82    
83    checkpoint58r_post
84    o modifications to pkg/seaice/growth.F, which change results of
85      lab_sea experiment: fixes pertain to melting snow over open water, to
86      masking EVAP under sea ice, and to using the correct AREA variable for
87      computations of EVAP, PRECIP, HSNOW, and GHEFF
88    o add ability to read bathy, salt, and theta using MNC (off by def)
89    o add flooding algorithm and advection of HSNOW for pkg/seaice;
90      both are turned off by default and do no change any results
91    o seaice advection with pkg/thsice: a step toward the use of non-linear
92      advection scheme, but #ifdef or commented out for now (requires more EXCH).
93    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
94      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
95      in natl_box (affects results @ truncation level: update output.txt)
96    o multi-threading and IO:
97      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
98      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
99        (needed to work with SingleCpuIO): tested in all verif. exp.
100    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
101      affects the results (but none of the verification test uses this scheme).
102    o Adding some pkg/diagnostics capability to pkg/seaice
103      (will certainly be subject to changes)
104    o ctrl: adding new control variables:
105      lwflux, lwdown, evap, snowprecip, apressure, runoff
106    
107    checkpoint58q_post
108    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
109      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
110      high_res_cube configuration by 4% on Columbia.
111    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
112      add (in global_with_exf/code) a version of EXF_INTERP_READ without
113      dynamical allocation (seems to work in multi-threaded).
114    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
115      single CPU io) so that TAF does not have to see EESUPPORT.h
116    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
117    
118    checkpoint58p_post
119    o obcs: stop if obcs is used with useCDscheme = .true.
120    o shelfice:
121     - fix a sign error so that no slip at shelfice interface works
122     - remove stop for combination non-hydrostatic code and shelfice. That does
123       not mean, that the results are correct, but at least they are numerically
124       stable
125    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
126    o added adjoint exch routined for all exch*3d* routines
127      and updated flow directives
128    
129    checkpoint58o_post
130    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
131      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
132    o change controling S/R for writing pickup file (new S/R do_write_pickup)
133      and clean-up reading/writing of pickup files.
134    o fix local version of read/write pickup (NH part) in rotating_tank/code
135    o simplify EXCH interface:
136     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
137     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
138    o added the regrid package
139    o shelfice:
140     - add a simple boundary layer scheme to reduce noise
141     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
142    
143    checkpoint58n_post
144    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
145       local variable (not in common block).
146    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
147      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
148      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
149        to work with SingleCpuIO.
150    o add "_d 0" to real constant of pkg/cfc subroutines ;
151       update exp. cfc_exemple & tutorial_cfc_offline output files.
152    o multi-threading and IO:
153      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
154        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
155      - barrier before and after reading.
156      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
157      - avoid using MDS_WRITELOCAL for LAND pkg output.
158      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
159        common-block variables ; Allows multi-threading with master-thread IO.
160    o change default MAX_NO_THREADS from 32 to 4 ;
161      and stop cleanly when MAX_NO_THREADS is too small.
162    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
163    
164    checkpoint58m_post
165    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
166       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
167    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
168       keep global_ocean.90x40x15 (for AD testing) with former secondary test
169       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
170    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
171        add MITgcm_tutorials (= code + all the tutorials)
172    o ecco, option to compute cost for total ssh (mean+anom)
173    o consistent with addition of ptracer and ssh in pkg/profiles
174    o profiles: adding ptracer and ssh
175    o testreport: change multi-test output-file name
176      (from output.txt.{name} to output.{name}.txt)
177    o profiles: now ok for mutli-tiles case
178    o seaice: add 4 parameters for different advection schemes for area,
179      (effective) seaice thickness, enthalphy, and snow height. Their default
180      is the standard parameter SEAICEadvScheme
181    o calc_gw:
182     - add cosFacU in zonal viscous flux (harmonic.visc.).
183     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
184       of tutorial_plume_on_slope.
185    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
186    o calc_gw: true flux-form, account for horizontal grid spacing.
187      update rotating_tank results, but not plume_on_slope (affected at
188      truncation level, 11 digits).
189    
190    checkpoint58l_post
191    o calc_gw:
192     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
193     - remove side-drag for now (need to fix it); update plume_on_slope results.
194     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
195    o commit code to make SST/SSS weights spatially variable
196      (based on either variable in-situ or variable initial T/S weights)
197    o pkg/ecco:
198      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
199        now based on horizontally varying weights wthetaLev, wsaltLev
200      * cost_averagesflags now returns year indices in addition to day, month
201      * sflux balance is performed on annual basis
202        (sflxumm, sfluxmm2, bal_sfluxmm)
203      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
204        including separate counting and multipliers
205    o pkg/rbcs
206      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
207    
208    checkpoint58k_post
209    o testreport:
210     - always build in dir. "build" (if not there, mkdir build instead of building
211       & running in input)
212     - run in dir run (if it exists), in build otherwise.
213     - call prepare_run (if input/prepare_run exists)
214     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
215    o pkg/exf modifications to interpolation and rotation routines for more
216       reasonable treatment of North Pole singularity: for tracers North Pole
217       value is set to northernmost zonal-mean value, for zonal velocity it is
218       set to zero, and for meridional velocity it is set to northernmost value.
219    o pkg/exf/exf_check_range.F
220     - add tile index to diagnostics and move stop statement to the very
221       end of the routine.
222    o pkg/diagnostics: (diagnostics_main_init.F)
223      define title of isomorphic variables according to the current config.
224    o pkg/thsice with pkg/seaice dynamics:
225    - fix domain of computation (interior only, required for exf) and do exchanges
226    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
227    o towards a standard way of dealing with multi-threading in MONITOR
228      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
229    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
230       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
231    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
232    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
233    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
234       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
235    o tracer advection:
236     - clean-up and simplify calc_common_factors.F
237     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
238       advection subroutine (but still not used within DST advection S/R)
239    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
240    
241    checkpoint58j_post
242    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
243      from file (collects calls previously in FORWARD_STEP)
244    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
245    o adjoint store dir. adjusted accordingly
246    o genmake2
247      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
248    
249    checkpoint58i_post
250    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
251      on wind stress (SEAICEstressFactor defaults to 1.)
252    o Total number of Timers is finite (<=40): comment out 2 non-essential one
253      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
254    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
255      on CS-grid: no longer loosing mass.
256    o exf & curvilinear-grid: no longer modify longitude xC & xG.
257    o pkg/ggl90: fix sloppy output and fix a bug
258    o pkg/seaice: added SEAICEuseEVPpickup parameter
259      - Set to false in order to start EVP solver with
260        non-EVP pickup files when using SEAICEuseEVP
261      - fix sign error in diffusion in seaice_calc_rhs
262    
263    checkpoint58h_post
264    * Modifications for bottom topography control
265      o replace hFacC by _hFacC at various places
266      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
267      o add non-self-adjoint cg2d_nsa
268      o update autodiff support routines
269      o re-initialise hfac after ctrl_depth_ini
270      o works for 5x5 box, doesnt work for global_ocean.90x40x15
271    * Adding verification for 5x5 box (4-layer) bottom topography control
272    
273    checkpoint58g_post
274    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
275       used for mean seasonal cycle, mean diurnal cycle); add an example
276       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
277    o pkg/ggl90:
278      - add parameter (minimum surface kinetic energy)
279      - fix bug (avoiding division by zero)
280    o couple pkg/thsice to pkg/seaice:
281      - modify advection in seaice to accomodate new scalar fields to be advected
282      - only muliDimAdection scheme work with seaice/thsice
283      - mapping of thsice-variables to seaice-variables, back and forth
284      - does not break the verification experiments, but does not give the
285        desired results either
286    o pkg/seaice
287      - make (default) second order advection a bit less confusing?
288    
289    checkpoint58f_post
290    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
291      to pkg/seaice):
292      - new routines thsice_map_exf and thsice_get_exf provide the interface
293      - add an additional formal parameter to thsice_solve4temp
294    o pkg/exf:
295      - add new fields wspeed, snowprecip (to be able to couple to thsice)
296      - correct Stefan-Boltzmann constant
297      - new parameter for longwave surface emittance
298      - separate some stuff from exf_bulkformulae into new routines  
299        exf_radiation, exf_wind
300      - add new parameters and constants: longwave emissivity for ocean, ice
301        and snow, evaporation parameters over ice
302      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
303        either wind from stress or stress from wind
304    o pkg/thSIce:
305    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
306    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
307       and THSICE_CALC_THICKN
308    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
309    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
310      to make debugging easier.
311    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
312    o pkg/bulk_force:
313      - clean-up comments and parameters ;
314      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
315    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
316      generate new output for test-experiment: aim.5l_cs.thSI
317    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
318      testreport accordingly
319    
320    checkpoint58e_post
321    o SEAICE_CGRID adjoint done
322    o R_STAR adjoint implemented.
323      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
324      * need to sort out init. of h0facc, etc.
325    o Make pkg/profile fully independent of ecco,cost, etc. stuff
326      to be able to use it in pure forward.
327    
328    checkpoint58d_post
329    o upgrade simple test-experiment to tutorial example:
330     step.1: duplicate the experiment and (step.2) will remove the old copy.
331      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
332      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
333      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
334      tutorial_global_oce_biogeo    <- copy of dic_example
335      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
336      tutorial_plume_on_slope       <- copy of plume_on_slope
337      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
338      tutorial_global_oce_optim     <- empty for now (David ?)
339      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
340     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
341    o correct a sign problem in cost_scat.F
342    o obcs and ptracers: fix boundary conditions for advections schemes
343      with larger stencil
344    o thsice adjoint: start
345    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
346      completeness
347    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
348      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
349    o ptracers adjoint:
350      * avoid extensive recomputatations
351      * fix missing re-init. of gptr (missed by TAF)
352    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
353      me to turn off the excessive output to STDOUT that this package produces
354    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
355      and add those terms in Vector-Invariant formulation.
356    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
357      if the control period (xx_hfluxperiod etc) is 0
358    o in profiles pkg, clean routines and fix details
359    o in ecco pkg, reading ssh data:
360      fix problem in case the model does not start at iter0=0
361    o fix mnc-pickup/restart for ptracers
362    o new package prifiles:
363      code to compute profile-based cost by Gael Forget
364      (modifs in ecco, ctrl, autodiff)
365    o Benign bug fix in initialization (spotted by M. Mazloff) of
366      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
367    
368    checkpoint58c_post
369    o adjoint: finish NLFS adjoint and provide reference output in
370      verification/global_ocean.90x40x15/results_ad_nlfs
371    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
372      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
373      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
374      with SEAICE_CGRID defined.
375    o move calendarDumps from "data" to "data.cal" and clean-up the code
376      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
377    o add useEXF & useCAL flags (for now, set in hard-coded way)
378    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
379      (were missing in NH mode, and wrong in quasihydrostatic mode).
380      waiting for Chris updated version of calc_gw to add those CALLs.
381    o fix bug in quasihydrostatic S/R ;
382      add a test for this option: global_ocean.90x40x15.qshyd
383    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
384      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
385    o add on/off flag useOffLine for package OFFLINE
386    o seaice:
387      - modify advection so that it works also on the C-grid
388      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
389        problem in multi-tile runs with C-grid
390      - add flags for clipping ice velocities and/or masking solver forcing
391      - fix drag (ocean on ice) formulation and a bug that caused noise in the
392        C-grid solver
393      - added a few comments to seaice_diffusion.F
394      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
395        are now exclusive)
396      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
397        required re-ordering the code a little:
398       + make DAIRN global variable (defined in SEAICE)
399       + move computation of the viscosities eta and zeta into a new separate
400         routine (because I need to recompute them in seaice_ocean_stress.F)
401    
402    checkpoint58b_post
403    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
404      update output.txt of exp. aim.5l_cs.thSI
405    o various mnc cleanups and improvements:
406      + shrink lookup tables by factor of ~4
407      + better error reporting when running out of lookup space
408      + able to handle longer path/file names (up to 500 chars)
409    o adjoint:
410      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
411      - TBD: "hidden" mom_vecinv recomp. in dynamics
412    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
413     (allow to differentiate between forcing components using new integer flags:
414      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
415     and add new flag to put Dissipation tendency out of Adams-Bashforth.
416    o ecco
417      - enable trend removal from SSH anomaly obs.
418    o adjoint
419      - a fix for PmEpR when #undef EXACT_CONSERV
420      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
421      - try to fix "hidden" recomp. in forward_step for NLFS
422        (NLFS seems broken sometimes after I checked it in)
423    o seaice:
424     - add c-grid version of the dynamic solver:
425       + three new routines that are the c-grid substitute lsr, dynsolver
426         and ostres
427       + put a few fields that were local to dynsolver into global common
428         blocks, so that I can move the computation of stresses etc into
429         seaice_lsr (saves coding but may break the adjoint).
430     - replace more hardwired parameters by runtime parameters
431     - add ice masks that mask the rhs of the implicit solvers where there
432       is no ice (commented out in seaice_dynsolver, because i am not sure
433       if this works properly), eventually this should replace the clipping
434       of ice velocities in seaice_dynsolver to +/-40cm/s.
435    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
436      include it only where its needed
437    o move balancing of fluxes before the call of external_forcing_surf
438    o seaice:
439      - correct units of turning angles (now they are really in degrees)
440      - move computation of GWATX/Y out of main routine into dynsolver
441      - initialize GWATX/Y in seaice_init
442    o Apply mask on Fresh-Water flux (needed for SSH forcing).
443      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
444    o seaice: add runtime flags for turning angles (default to zero)
445    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
446      and trend from exf forcing and ctrl control adjustments
447    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
448      (since checkpoint57x_post)
449    o change the default rotation period to 86164.s = the Earth rotation
450    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
451      and based on a reference stratification. Tested within hs94.cs-32x32x5.
452    o seaice advection: add code for choosing between the default (2nd order
453      central differences) and multiDim advection schemes provided by
454      pkg/generic_advdiff
455    o seaice:
456      - removed all references to SEAICE_GRID.h fields from
457        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
458        (cubed-sphere configuration will change a little)
459      - grid computations in seaice_init are obsolete now.
460      - cleaned up code a little so that is easier to read (hopefully).
461      - added new (better?) discretizations of default advection and diffusion
462        (turn on with SEAICEuseFluxForm)
463      - replace 1 in 3d global fields by kSurface in growth.F
464      
465    checkpoint58a_post
466    o seaice:
467      - bug fix in advect.F
468    o shelfice:
469      - separate shelfice load anomaly from pload (breaks with time
470        dependent forcing), => introduce constant field shelficeLoadAnomaly.
471        Its default is 0., but it may be computed more cleverly from (unknown)
472        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
473        done offline. A good approximation of the pressure load anomaly is
474        necessary to avoid large initial adjustment processes underneath
475        deep-reaching shelfice.
476      - small fix in ISOMIP shelfice_thermodynamics
477      - add more sophisticated thermodynamics of Hellmer (1989), this is
478        now the default
479      - give a few constants more intuitive names
480    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
481      if bulk formulae are used in long integration (especially EmPmR). Turn
482      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
483      if balancePrintMean, the imbalance that is substracted is printed to
484      STDOUT.
485    o fix bug (typo) in obcs_apply_eta.F
486    o add a new package shelfice which enables us to model the circulation
487      underneath shelf-ice with draughts of hundreds of meters.
488     - works
489     - to do: + include improved thermodynamics
490              + check whether kSurfC (from model/inc/SURFACE.h) can be used
491                instead of new field kTopC
492              + can we use topoFile, Ro_surf and existing code in ini_depth.F
493                instead of new field R_shelfIce and new code in ini_depth.F
494                and ini_mask_etc.F?
495              + adjust vertical mixing schemes?
496    o seaice pkg:
497     - add a cpp-flag to include a simple formula for a salinity dependent
498       freezing point of sea water at the surface
499     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
500       meridional stresses are now different (and hopefully correct)
501    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
502       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
503       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
504    o pkg/diagnostics: add options and parameters for regional-statistics
505       diagnostics ; define regions by reading a region-mask from a file
506       (might add other options later)
507    o pkg/bulk_force:
508     - add option and parameters to use AIM surface-flux formulae.
509     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
510       others forcing fields (defined in PARM05, parameter file "data") are loaded
511       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
512     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
513     - use the right EXCH call for uwind,vwind (to work on CS-grid).
514     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
515       and parameters (note: calcWindStress replaces .NOT.readwindstress).
516     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
517    
518    checkpoint58
519    o add "--embed-source" option to genmake2 which, when the supporting
520      tools can be compiled (as determined by genmake2) will turn on the
521      embed_files package which then embeds the entire MITgcm source code
522      (*.[fFhc] + Makefile) used for the build within the executable
523      - requested by CNH but off by default
524      - adds a paltry <9MB to the mitgcmuv executable in most cases
525      - only writes the output when useEMBEDSRC in eedata is true
526    o clean up 3-dim. relaxation codes:
527      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
528      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
529      * Thanks to Tom Haine for testing!
530    
531    checkpoint57z_post
532    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
533      affects output (@ truncation level) of exp. plume_on_slope ; updated.
534    o fix the pickup behavior for obcs in combination with ptracers
535    o fix a bug in ptracers_external_fields_load
536    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
537      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
538    o transfered surface NH pressure to eta field (if exactConserv).
539    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
540         and update lab_sea output.txt file.
541    o completing 3-dim. relaxation code: additional term
542         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
543      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
544      * At compile time, in "EXF_OPTIONS.h" set
545          #define  ALLOW_CLIMTEMP_RELAXATION
546          #define  ALLOW_CLIMSALT_RELAXATION
547      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
548          tauThetaClimRelax3Dim = 15552000.0,
549          tauSaltClimRelax3Dim  = 15552000.0,
550      * 3 cases:
551          1) Use a constant-in-time 3-dim. field
552          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
553          3) Real-time relax. to time-evolving prescribed field
554    o Adding Laplacian-type smoothness constraint on
555      initial and boundary (forcing) controls (ic, bc)
556      * enable at compile-time via
557        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
558      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
559      * Absolute scale somewhat unclear so far
560      * no area weighting was included since no other cost term does so far
561    
562    checkpoint57y_post
563    First step for a NLFS adjoint
564    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
565    o new init. routines for calc_r_star, calc_surf_dr
566    o still need to deal with ini_masks_etc
567    o testreport seemed happy
568    checkpoint57y_pre
569    
570    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
571    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
572    o add new offset feature to offline pkg (plus minor cleanup)
573    o cfc fixes for final year of integration
574    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
575      be in GCHEM_OPTIONS).
576    
577    checkpoint57x_post
578    o fix testreport Pb in multiple test experiment.
579    o cleanup our namelist syntax in verification:
580      - make it more F95 standards compliant (some work still needed)
581      - allows the vast majority of our tests to work with gfortran
582    o Non-Hydrostatic:
583     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
584     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
585    o Allow to apply AB on T,S rather than on AB(gT,gS):
586     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
587     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
588       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
589     - need a "clever" read_pickup to restart from the other AB formulation
590    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
591    o remove some unused variables (reduces number of compiler warnings)
592    o adjoint
593      * Disable useVariableViscosity for adjoint for time being
594        (there are a number of extensive recomputations)
595      * Initialize certain variables needed for adjoint
596    
597    checkpoint57w_post
598    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
599                 fix the singleCpuIO RS version of MDSWRITEFIELD
600       and add a WARNING if using globalFiles=T with multi-processors.
601    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
602      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
603    o tracer advection scheme:
604      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
605       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
606       was not very convenient).
607      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
608       (further tests needed for the implicit DST & Flux-Limiter schemes).
609    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
610      and sRef for convenience, handy, when you want to initialize
611      ptracers in a large domain with a constant non-zero value. Also,
612      untangle ptracers_init.F a little.
613    
614    checkpoint57v_post
615    o change dome exp. to use variable viscosity in side-drag terms.
616    o remove all the files from the cfc_offline test since they are now
617      incorporated into tutorial_cfc_offline which has been producing
618      identical results for a few days of testing
619    o add new parameter: sideDragFactor to enable half-slip-side BC
620      and change side-drag S/R to use viscosity from mom_calc_visc
621      (can switch back by setting sideDragFactor=0.); affects results at
622      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
623       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
624    o vorticity & strain are now computed without masking, to account for
625      no-slip-side BC in variable viscosity calculation ; mask is applied
626      anyway later on, before computing advection/coriolis terms.
627    o modify exp4 to test new obcs support for reading from external files
628      and for passive tracers
629    o fix behavior of ptracers_monitor when monitor output is written to a
630      netcdf-file; still not independent of monitor.F (writes in the same
631      file).
632    o change default value of tRef (put a uniform, meaningful value for ocean
633      & atmos) and initialize sRef (was missing, as Martin mentioned).
634    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
635      to be proportional to enstrophy dissipation length.  Thus,
636       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
637      This is now consistent with Smagorinsky and with the manual.
638    
639    checkpoint57u_post
640    o OBCS and PTRACERS: add open boundary support for passive tracers
641      - either use homogenous (pseudo) v.Neumann conditions or prescribe
642        OB-values from file; this is not different from the way theta and salinity
643        are treated
644      - however, Orlanski-radiation conditions are not supported, and the model
645        will stop if you use pTracers and Orlanski at the same time.
646      - beefed up the rountine obcs_external_fields_load: now only those open
647        boundary values are overwritten with values from files for which there
648        are really files, otherwise the OB-fields remain untouched. This makes
649        it possible to use different OBs at different ends of the domain (as
650        with EXF)
651    o reduce number of exch calls in shap_filt (s2).
652    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
653      truncation level) 4/5 MLAdjust test results (11&12 digits match).
654    
655    checkpoint57t_post
656    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
657    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
658      same truncation, independent of the face number: affects affects several
659      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
660    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
661      note that biharmonic viscosity + no-slip was not tested in any experiment.
662    o fix bug in non-linear free-surf side-drag ; generate new output for
663      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
664    o make mnc honor the writeBinaryPrec flag for most kinds of output
665    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
666    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
667      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
668    o add brackets in multi-terms sum to get same truncation, independent of
669      the face number (manage to get exactly same value of gU,gV at the cs-edge)
670      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
671    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
672      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
673      a maximum grid-scale Reynolds number.  Also, changes all length calculations
674      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
675      Suggested values of viscosity parameters found in mom_calc_visc.
676      Many new viscosity diagnostics available.
677    
678    checkpoint57s_post
679    o Add clearing-house for viscosity calculations, mom_calc_visc and
680      correct numerous bugs in LeithD and Smagorinsky discretizations.  
681      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
682      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
683      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
684      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
685      The Strain-Tension form is now called with useStrainTensonVisc=.true.
686      ViscAhStrain and viscAhTension are now retired.
687    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
688    o In response to JMC's bug report, genmake2 now ignores any soft-links
689      that it finds in the *current* directory when searching for files.
690      Soft-links found in any other source directories will still work as
691      they did before.
692    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
693      a C routine to unlimit the stack size
694    o mnc-ify pkg/aim snapshot vars
695    o mnc-ify pkg/land as requested by Daniel
696    o various changes to mnc including:
697      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
698      - output can now be grouped so that all files within a group
699          change the ITER portion of their names in lock-step together
700      - can now read ("global") PER-FACE (in addition to PER-TILE) files
701          and works with both EXCH1 and EXCH2 (but needs more testing)
702      - writing works for all verification test cases w/ g77 on Linux
703    
704    checkpoint57r_post
705    o make MNC variable initialization happen earlier
706    o add diagnostics for (almost) each term of the momentum Eq.
707    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
708    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
709    o remove MINIMAL_TAVE_OUTPUT option ;
710      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
711    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
712      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
713    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
714    o add time-dependent SST, SSS control
715    o cost terms in ecco/ modularized (new cost_generic.F)
716    o cost_averages routines are modularized (new cost_averagesgeneric.F)
717    o new infrastructure for seaice model vs. obs misfits in seaice/
718      * driver from the_main_loop.F is seaice_cost_driver.F
719      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
720      * gradient check in Exp. 6a of natl_box_adjoint/
721    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
722      (see README file)
723    
724    checkpoint57q_post
725    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
726    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
727      - bug was reported by Jean-Michel and Ian Fenty
728    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
729      update exp. cpl_aim+ocn output.
730    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
731      Needed for high-res. runs with large global files
732      to be able to limit tapelev size
733    o Changed some tests for adjoint:
734      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
735      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
736      * global_ocean.90x40x15/ back to default 3-level checkpointing
737    o Modifications to enable scripted COMMON to MODULE conversion
738      * verification/OpenAD/code/ has necessary scripts and description;
739      * converts, compiles and runs successfully;
740    
741    checkpoint57p_post
742    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
743    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
744      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
745    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
746    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
747      (was already the case for dissipation with mom_vecinv,
748       and also the case for grad.PhiHyd when staggered-timeStep)
749      This will allow to put dissipation out-off the AB time-stepping.
750     Unfortunately, affects truncation error. Update output of exp. that "fails"
751      (cg2d matching number) and leave the others for later: front_relax(10),
752      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
753      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
754    
755    checkpoint57o_post
756    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
757      (2) its ready to be documented during the 20050801 DocFest
758    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
759      for ideal_2D_oce and lab_sea on linux_ia32_g77
760    o set to #undef CTRL_SET_OLD_MAXCVARS_30
761      in global1x1_tot/code_seaice_adj to access indices 32, 33
762      (worth another tag)
763    
764    checkpoint57n_post
765    o adding precip control xx_precip 32
766    o adding swflux control xx_swflux 33
767    o Replacing 10 forcing penalty cost routines by 1 generic.
768    o Implementing partitioning in time-mean and variable adjustment
769      for atmos. state.
770    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
771    o in natl_box_adjoint:
772      * updated exp 1 to 10
773        (but does not have time-mean vs. variable split results yet)
774    o updated global1x1/*_seaice_adj/
775      to incorporate latest changes
776    o enable useSingleCpuIO for mdsio vector routines
777      (applies in particular to tapelev I/O)
778    o removed inefficient K-loop in all active_file*control*.F
779    
780    checkpoint57m_post
781    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
782      and advect_cs (use EXCH-2 and standard cs-32 grid files).
783    o pkg/exch2: filling of face-corner halo regions is optional
784      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
785    
786    checkpoint57l_post
787     tag before updating tutorials (pre-release-2)
788    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
789       for output and interpolation of input fields onto model grid)
790    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
791       Affects results of exp. rotating_tank ; update output.txt.
792    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
793          and taking the square quantity and/or using a fraction-weight field.
794    o fix aim_diagnostics_init.F mate numbers.
795    o add mnc output capability to diagnostics/diagstat and update
796      our cvsignore files for the ACSII output generated
797    
798    checkpoint57k_post
799    o lab_sea now uses diagnostics package and provides a suite of
800      new EXF diagnostics output.
801    
802    checkpoint57j_post
803    o exf
804      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
805        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
806        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
807      * extended diagnostics output
808        - now includes all EXF variables
809        - hs, hl moved to common block
810        - separate S/R for diagnostics, called after ctrl vector is added
811        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
812        - EXFqnet contains true Qnet (i.e. includes qsw)
813      * updated verif. lab_sea, global_with_exf
814      * Rearranging hflux (exf_mapfields -> exf_getforcing)
815        to ensure that diagnostics sees a true EXFqnet
816    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
817    o diagnostics pkg: change pointers so that 1 diagnostic can be used
818      several times with different frequencies.
819    o mnc-ify the thsice package as requested by Daniel Enderton
820      - the monitor--MNC output needs work
821      - many attributes need to be added (most are currently blank)
822    o mnc-ify theaim_v23 package as requested by Daniel Enderton
823      - many attributes need to be added (most are currently blank)
824    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
825    o add Sadourny like discretization to the 4th.O vorticity advection scheme
826    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
827      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
828         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
829    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
830     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
831    
832    checkpoint57i_post
833    o Diagnostics package was changed: diagnostic allocation is now deactivated
834      by setting an empty file name in the namelist (used to be by setting 0 frequency)
835    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
836      add 1rst Order upwind vertical Shear.
837    o add a quick fix for A/B checkpointing in OFFLINE mode
838    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
839      end-run around the C/Fortran linking horror in eesup/src/timers.F
840    o added pkg/runclock: allows user to terminate run based on wall clock
841    o added non-hydrostatic scaling parameter: nh_am2
842    o pkg/my82: futile attempt to make results compiler-independent by adding
843      some "_d 0", etc. no effect.
844    o for mnc output, fill the 'T' coordinate var with myTime and create a
845      separate 'iter' variable for iteration count
846    o pkg/diagnostics:
847      add new capability: output of Global/Regional & per-level statistics ;
848      tested against monitor output (including land & thSIce) on various exp.
849    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
850    
851    checkpoint57h_done
852      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
853      data.diagnostics, data.gchem, data.ptracers) is done.
854    
855    o pkg/diagnostics: prepare for Global/Regional statistics.
856      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
857    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
858      and rename it: DIFFERENT_MULTIPLE
859    
860    checkpoint57h_post
861    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
862    o pkg/diagnostics: change output frequency, now in seconds (instead
863      of Nb of iterations). This requires to change data.diagnostics.
864    checkpoint57h_pre
865    
866    o in mnc, let the user create the output dir if both mnc_outdir_date
867      and mnc_outdir_num are false
868    o add fflags() to pkg/diagnostics which allows one to specify, on a
869      per-file basis, the file precision [default behavior is unchanged]
870    o added diagnostics to pkg/kpp, including computation of mixed layer
871      depth based on a temperature/density criterion
872    o updated verification/natl_box to test the new pkg/kpp diagnostics
873    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
874    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
875    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
876      not mnc -- this mistake was found by JMC and is now corrected
877    
878    checkpoint57g_post
879    o add Adams-Bashforth 3rd Order time stepping:
880      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
881      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
882    checkpoint57g_pre
883    
884    o make lambda[Theta,Salt]ClimRelax spatially varying
885      (default remains spatially uniform constant based on tau)
886    o added new control variables
887      * init. uVel, vVel, etanN
888      * lambda[Theta,Salt]ClimRelax
889    o separate masks used for ctrl_pack/unpack 'from write_grid' output
890      (suggested by G. Forget)
891    
892    checkpoint57f_post
893    o add parameter "baseTime" = model base time = time at iteration zero
894      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
895      account for baseTime shift
896    o move Coriolis arrays from PARAMS.h to GRID.h
897    checkpoint57f_pre
898    
899    o mnc-ifying the seaice package
900    o introduced an alternative length scale calculation for use in the limiting
901      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
902    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
903    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
904      as well as grad(vort3).  Made it compatible with both approximate form
905      for the cubed sphere and full form of these gradients.  Added flag
906      useFullLeith to select between approximate and full form.  
907    o add "d0" in getcon.F to reduce differences between compilers/platforms
908      update output.txt of exp. fizhi-gridalt-hs
909    o change port_rand funtion to allow to set the seed.
910    o fix obscure MNC bug involving conversion between reals and integers
911      - it caused no problems with certain (eg. gcc, ifc) compilers but the
912        new version is now more standards-compliant
913    o adjoint-related modifications
914      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
915      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
916      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
917    
918    checkpoint57e_post
919    o Adding eddy stress controls a la Ferreira et al.
920    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
921    
922    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
923      update output.txt of exp. fizhi-gridalt-hs
924    o add more "Z" dimensions and associated coordinate vars to MNC
925    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
926    o parameter calendarDumps: when set, approximate months (30-31 days) and years
927      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
928      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
929      months and years.  Requires pkg/cal.
930    o diagnostics: add pickup functionality
931      - off by default for backwards compatibility
932      - current version only uses MDSIO -- MNC will be added
933    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
934    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
935    
936    checkpoint57d_post
937    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
938    o modify verification/ideal_2D_oce so that it tests the creation of mnc
939      output from the diagnostics package
940    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
941    o make genmake2 more portable by using ".$FS" instead of ".f" for more
942      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
943    o add coordinate variables to the MNC output from the diagnostics package
944    o change MNC-flags default value: true when useMNC=TRUE
945    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
946      the ability (off by default) to read the grid information using MNC
947    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
948    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
949    o do snap-shot diagnostics at the middle of the time-interval (instead of
950      at the end).
951    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
952      new test for AIM with thSIce + slab-ocean
953    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
954    o move state variable diagnostics to the beginning of the time step ;
955      (note: still needs some work specially for snap-shot diagnostics)
956      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
957    
958    checkpoint57c_post
959    o Change testing option (-ieee) to get closer agreement between g77 & ifort
960    o generate new output.txt files on faulks with g77 & the new -ieee option
961    checkpoint57c_pre
962    
963    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
964      update output.txt of exp. global_ocean.90x40x15
965    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
966      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
967    o add saltFlux(+File) forcing capability with periodicExternalForcing
968    o allow to use pkg diagnostics for GM-Redi & ThSIce output
969    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
970    o improvements for the MNC output from DIAGNOSTICS:
971      - correct handling of the unlimitied dimension
972      - all dims now have associated coordinate variables
973      - variables located at U, V, and Corner ("Z") points are now written
974        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
975        *all* data points are output
976    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
977    o added pkg/seaice/seaice_monitor.F
978    o mdsio_readfield.F can now read files visible only to master MPI process.
979    o pkg/seaice: some test code for ice-modified ocean stress
980    o exf_getffields interpolation defaults to bilinear for all scalar forcing
981      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
982      spurious negative numbers for precipitation and humidity.  Will cause
983      some small numerical differences for integrations using pkg/exf/exf_interp.F.
984    o pkg/ctrl/
985      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
986        May be enabled via doPackDiag
987      *  introduce z-scaling of
988         + gradient (doZscalePack) and
989         + control (doZscaleUnpack)
990    o pkg/mdsio/
991      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
992      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
993    
994    checkpoint57b_post
995    o simplify options in diagnostics_fill arguments (remove weird combinations)
996    o fix MNC coordinate variables so that they now contain per-face index
997      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
998      general, EXCH2 grids are only aligned to a "local" coordinate system
999    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1000    o Implement instantaneous output within pkg diagnostics:
1001      setting a negative frequency in data.diagnostics produces
1002     "snap-shot" output (as opposed to time-average if freq > 0)
1003    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1004      NOTE: change ptracer diagnostics name: use 2 characters to work with
1005            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1006    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1007      becomes the coordinate variable for the 'T' dimension
1008    o add CF-style coordinate variables to MNC
1009      - just a first cut:  numbers are meaningless on the cubesphere and
1010        missing along the T axis but otherwise it works!
1011    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1012    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1013    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1014      this is based directly on what the model compute, so that the content of
1015      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1016    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1017    o clean up build options files for SunOS, in particular
1018      - remove -traditional from xmakedepend
1019      - change -xarch=v9 to -xarch=native for f77
1020      - restore use of make (not gmake)
1021      - add CC=gcc if using g77
1022    o changes per discussion of AM, JMC, & EH3 today:
1023      - move redundant "grid" variables out of "state" -- in preparation of
1024        creating proper CF-style coordinate variables and in recognition
1025        that any/all grid variables can be easily copied (eg. w/NCO) from
1026        the grid files into any of the other NetCDF files
1027      - *always* output grid variables with MDSIO (this will eventually be
1028        changed)
1029      - output MNC grid file if useMNC is true
1030    o every instance of _END_MASTER() has been found and replaced with
1031      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1032      preprocessors
1033    o re-arrange diagnostics pkg initialisation:
1034     - allow each package to extend the available diagnostics list
1035     - add some checking and fix small problems (multi-threaded, ...)
1036     - new S/R diagnostics_fill (replace fill_diagnostics):
1037       look through the short list of active diag. (instead of the long list)
1038       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1039    
1040    checkpoint57a_post
1041    o this set of changes restores TAMC compatibility
1042      tested for global_ocean.90x40x15 adjoint on trough
1043      (what a pain)
1044    
1045    checkpoint57a_pre
1046    o some modifs in tools/build_options for sunos
1047    o call ctrl_pack for ctrl at end for optimcycle=0
1048    
1049    checkpoint57
1050    o add horizontal bi-harmonic viscosity for vertical velocity
1051      - new parameter viscA4W (defaults to viscA4)
1052      - affects only non-hydrostatic code
1053      - to be done: no-slip lateral boundary conditions
1054    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1055    o implement Implicit Vertical advection for pTracers
1056    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1057      (implemented also for implicit vertical diffusion & advection)
1058    o OBCS: extend application of tracer open boundary conditions
1059      to a strip beyond the boundary of width Olx/Oly
1060    o add call monitor to TAF set of required calls (flow directives)
1061      and include in natl_box_adjoint
1062    o untangle a few ifdefs related to cost, ctrl, autodiff
1063      untangel a few ALLOW_ECCO_OPTIMIZATION
1064    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1065      (theta2, salt2 in ecco_cost_weights)
1066    
1067    checkpoint56c_post
1068    o OBCS as control variables
1069      - update ctrl_ad_diff.list, obcs_ad_diff.list
1070      - remove balance of obcs controls from default
1071      - fix index bug nobcs in ctrl_init
1072      - fix dummy fields filen in ctrl_pack
1073      - add dummy weights for obcs
1074    o lsopt: comment out fort.94 output
1075    o optim:
1076      - remove unnecessary header files
1077      - adjusted namelists
1078      - add xerbla.F to Makefile
1079    o exf:
1080      - multiple modifications of exf_check_range
1081      - unit change in exf_init_runoff from [m/year] to [m/s]
1082    o mdsio:
1083      - i/o-vector change debugLevel from debLevA to debLevB
1084    
1085    checkpoint56b_post
1086    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1087      is called from DO_THE_MODEL_IO
1088      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1089      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1090      - clean up PTRACERS_WRITE_TIMEAVE a little
1091    o add another verification experiment that tests both the cfc-pkg and
1092      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1093      reactive tendencies treated inline with regular timestepping
1094    o testreport previously did a lousy job of comparing small numbers, so
1095      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1096      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1097      testreport.
1098    o ptracers_monitor: bug fix for MPI
1099    
1100    checkpoint56a_post
1101    o GCHEM: finish reorganizating the package
1102      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1103        (introduces another 3D-array for each passive tracer, but only if
1104        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1105        gchemTendency is not needed because the timestep is done separately)
1106      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1107      - GCHEM is now---more or less cleanly---separate from PTRACERS
1108      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1109        so clear to me how that should be done in a general way.
1110    o CFC: improve formatting of output in CFC_ATMOS
1111    o PTRACERS:
1112      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1113        that ALL experiments with ptracers enable can be checked. This makes
1114        GCHEM_MONITOR obsolete.
1115      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1116        monitorFreq
1117      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1118    o add PTRACERS (PTR0[1-5]) to testreport output
1119    o exf_check_range:
1120      * default changed to .TRUE.
1121      * will check values for niter0 if debLevA, every timestep if debLevB
1122      * STOP in exf_check_range if 'out of range'
1123      * range chosen generous to allow for potential extema
1124      TBD: a version with stricter range
1125           permitted range would be runtime parameters
1126  o GMredi:  o GMredi:
1127    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1128    - 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 1131  o GCHEM:
1131    - 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
1132      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1133    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1134      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1135        this flag is now only visible within GCHEM-pkg routines.
1136      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1137        be replaced by a 3D array that is computed before thermodynamics; for
1138        this, the tracer ID iTracer had to be included into the parameter list
1139        of ptracers_forcing
1140      - set up forward_step to call gchem_forcing, that will replace
1141        gchem_forcing_int in ptracers_forcing
1142      - cleaning up
1143  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
1144    
1145  checkpoint56  checkpoint56

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