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revision 1.163 by jmc, Thu Jun 12 21:25:24 2003 UTC revision 1.744 by dimitri, Mon Nov 6 20:37:25 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    o modifications to pkg/seaice/growth.F, which change results of
7      lab_sea experiment: fixes pertain to melting snow over open water, to
8      masking EVAP under sea ice, and to using the correct AREA variable for
9      computations of EVAP, PRECIP, HSNOW, and GHEFF
10    o add ability to read bathy, salt, and theta using MNC (off by def)
11    o add flooding algorithm and advection of HSNOW for pkg/seaice;
12      both are turned off by default and do no change any results
13    o seaice advection with pkg/thsice: a step toward the use of non-linear
14      advection scheme, but #ifdef or commented out for now (requires more EXCH).
15    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
16      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
17      in natl_box (affects results @ truncation level: update output.txt)
18    o multi-threading and IO:
19      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
20      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
21        (needed to work with SingleCpuIO): tested in all verif. exp.
22    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
23      affects the results (but none of the verification test uses this scheme).
24    o Adding some pkg/diagnostics capability to pkg/seaice
25      (will certainly be subject to changes)
26    o ctrl: adding new control variables:
27      lwflux, lwdown, evap, snowprecip, apressure, runoff
28    
29    checkpoint58q_post
30    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
31      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
32      high_res_cube configuration by 4% on Columbia.
33    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
34      add (in global_with_exf/code) a version of EXF_INTERP_READ without
35      dynamical allocation (seems to work in multi-threaded).
36    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
37      single CPU io) so that TAF does not have to see EESUPPORT.h
38    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
39    
40    checkpoint58p_post
41    o obcs: stop if obcs is used with useCDscheme = .true.
42    o shelfice:
43     - fix a sign error so that no slip at shelfice interface works
44     - remove stop for combination non-hydrostatic code and shelfice. That does
45       not mean, that the results are correct, but at least they are numerically
46       stable
47    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
48    o added adjoint exch routined for all exch*3d* routines
49      and updated flow directives
50    
51    checkpoint58o_post
52    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
53      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
54    o change controling S/R for writing pickup file (new S/R do_write_pickup)
55      and clean-up reading/writing of pickup files.
56    o fix local version of read/write pickup (NH part) in rotating_tank/code
57    o simplify EXCH interface:
58     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
59     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
60    o added the regrid package
61    o shelfice:
62     - add a simple boundary layer scheme to reduce noise
63     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
64    
65    checkpoint58n_post
66    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
67       local variable (not in common block).
68    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
69      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
70      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
71        to work with SingleCpuIO.
72    o add "_d 0" to real constant of pkg/cfc subroutines ;
73       update exp. cfc_exemple & tutorial_cfc_offline output files.
74    o multi-threading and IO:
75      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
76        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
77      - barrier before and after reading.
78      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
79      - avoid using MDS_WRITELOCAL for LAND pkg output.
80      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
81        common-block variables ; Allows multi-threading with master-thread IO.
82    o change default MAX_NO_THREADS from 32 to 4 ;
83      and stop cleanly when MAX_NO_THREADS is too small.
84    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
85    
86    checkpoint58m_post
87    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
88       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
89    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
90       keep global_ocean.90x40x15 (for AD testing) with former secondary test
91       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
92    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
93        add MITgcm_tutorials (= code + all the tutorials)
94    o ecco, option to compute cost for total ssh (mean+anom)
95    o consistent with addition of ptracer and ssh in pkg/profiles
96    o profiles: adding ptracer and ssh
97    o testreport: change multi-test output-file name
98      (from output.txt.{name} to output.{name}.txt)
99    o profiles: now ok for mutli-tiles case
100    o seaice: add 4 parameters for different advection schemes for area,
101      (effective) seaice thickness, enthalphy, and snow height. Their default
102      is the standard parameter SEAICEadvScheme
103    o calc_gw:
104     - add cosFacU in zonal viscous flux (harmonic.visc.).
105     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
106       of tutorial_plume_on_slope.
107    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
108    o calc_gw: true flux-form, account for horizontal grid spacing.
109      update rotating_tank results, but not plume_on_slope (affected at
110      truncation level, 11 digits).
111    
112    checkpoint58l_post
113    o calc_gw:
114     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
115     - remove side-drag for now (need to fix it); update plume_on_slope results.
116     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
117    o commit code to make SST/SSS weights spatially variable
118      (based on either variable in-situ or variable initial T/S weights)
119    o pkg/ecco:
120      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
121        now based on horizontally varying weights wthetaLev, wsaltLev
122      * cost_averagesflags now returns year indices in addition to day, month
123      * sflux balance is performed on annual basis
124        (sflxumm, sfluxmm2, bal_sfluxmm)
125      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
126        including separate counting and multipliers
127    o pkg/rbcs
128      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
129    
130    checkpoint58k_post
131    o testreport:
132     - always build in dir. "build" (if not there, mkdir build instead of building
133       & running in input)
134     - run in dir run (if it exists), in build otherwise.
135     - call prepare_run (if input/prepare_run exists)
136     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
137    o pkg/exf modifications to interpolation and rotation routines for more
138       reasonable treatment of North Pole singularity: for tracers North Pole
139       value is set to northernmost zonal-mean value, for zonal velocity it is
140       set to zero, and for meridional velocity it is set to northernmost value.
141    o pkg/exf/exf_check_range.F
142     - add tile index to diagnostics and move stop statement to the very
143       end of the routine.
144    o pkg/diagnostics: (diagnostics_main_init.F)
145      define title of isomorphic variables according to the current config.
146    o pkg/thsice with pkg/seaice dynamics:
147    - fix domain of computation (interior only, required for exf) and do exchanges
148    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
149    o towards a standard way of dealing with multi-threading in MONITOR
150      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
151    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
152       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
153    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
154    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
155    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
156       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
157    o tracer advection:
158     - clean-up and simplify calc_common_factors.F
159     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
160       advection subroutine (but still not used within DST advection S/R)
161    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
162    
163    checkpoint58j_post
164    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
165      from file (collects calls previously in FORWARD_STEP)
166    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
167    o adjoint store dir. adjusted accordingly
168    o genmake2
169      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
170    
171    checkpoint58i_post
172    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
173      on wind stress (SEAICEstressFactor defaults to 1.)
174    o Total number of Timers is finite (<=40): comment out 2 non-essential one
175      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
176    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
177      on CS-grid: no longer loosing mass.
178    o exf & curvilinear-grid: no longer modify longitude xC & xG.
179    o pkg/ggl90: fix sloppy output and fix a bug
180    o pkg/seaice: added SEAICEuseEVPpickup parameter
181      - Set to false in order to start EVP solver with
182        non-EVP pickup files when using SEAICEuseEVP
183      - fix sign error in diffusion in seaice_calc_rhs
184    
185    checkpoint58h_post
186    * Modifications for bottom topography control
187      o replace hFacC by _hFacC at various places
188      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
189      o add non-self-adjoint cg2d_nsa
190      o update autodiff support routines
191      o re-initialise hfac after ctrl_depth_ini
192      o works for 5x5 box, doesnt work for global_ocean.90x40x15
193    * Adding verification for 5x5 box (4-layer) bottom topography control
194    
195    checkpoint58g_post
196    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
197       used for mean seasonal cycle, mean diurnal cycle); add an example
198       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
199    o pkg/ggl90:
200      - add parameter (minimum surface kinetic energy)
201      - fix bug (avoiding division by zero)
202    o couple pkg/thsice to pkg/seaice:
203      - modify advection in seaice to accomodate new scalar fields to be advected
204      - only muliDimAdection scheme work with seaice/thsice
205      - mapping of thsice-variables to seaice-variables, back and forth
206      - does not break the verification experiments, but does not give the
207        desired results either
208    o pkg/seaice
209      - make (default) second order advection a bit less confusing?
210    
211    checkpoint58f_post
212    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
213      to pkg/seaice):
214      - new routines thsice_map_exf and thsice_get_exf provide the interface
215      - add an additional formal parameter to thsice_solve4temp
216    o pkg/exf:
217      - add new fields wspeed, snowprecip (to be able to couple to thsice)
218      - correct Stefan-Boltzmann constant
219      - new parameter for longwave surface emittance
220      - separate some stuff from exf_bulkformulae into new routines  
221        exf_radiation, exf_wind
222      - add new parameters and constants: longwave emissivity for ocean, ice
223        and snow, evaporation parameters over ice
224      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
225        either wind from stress or stress from wind
226    o pkg/thSIce:
227    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
228    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
229       and THSICE_CALC_THICKN
230    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
231    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
232      to make debugging easier.
233    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
234    o pkg/bulk_force:
235      - clean-up comments and parameters ;
236      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
237    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
238      generate new output for test-experiment: aim.5l_cs.thSI
239    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
240      testreport accordingly
241    
242    checkpoint58e_post
243    o SEAICE_CGRID adjoint done
244    o R_STAR adjoint implemented.
245      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
246      * need to sort out init. of h0facc, etc.
247    o Make pkg/profile fully independent of ecco,cost, etc. stuff
248      to be able to use it in pure forward.
249    
250    checkpoint58d_post
251    o upgrade simple test-experiment to tutorial example:
252     step.1: duplicate the experiment and (step.2) will remove the old copy.
253      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
254      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
255      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
256      tutorial_global_oce_biogeo    <- copy of dic_example
257      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
258      tutorial_plume_on_slope       <- copy of plume_on_slope
259      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
260      tutorial_global_oce_optim     <- empty for now (David ?)
261      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
262     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
263    o correct a sign problem in cost_scat.F
264    o obcs and ptracers: fix boundary conditions for advections schemes
265      with larger stencil
266    o thsice adjoint: start
267    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
268      completeness
269    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
270      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
271    o ptracers adjoint:
272      * avoid extensive recomputatations
273      * fix missing re-init. of gptr (missed by TAF)
274    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
275      me to turn off the excessive output to STDOUT that this package produces
276    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
277      and add those terms in Vector-Invariant formulation.
278    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
279      if the control period (xx_hfluxperiod etc) is 0
280    o in profiles pkg, clean routines and fix details
281    o in ecco pkg, reading ssh data:
282      fix problem in case the model does not start at iter0=0
283    o fix mnc-pickup/restart for ptracers
284    o new package prifiles:
285      code to compute profile-based cost by Gael Forget
286      (modifs in ecco, ctrl, autodiff)
287    o Benign bug fix in initialization (spotted by M. Mazloff) of
288      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
289    
290    checkpoint58c_post
291    o adjoint: finish NLFS adjoint and provide reference output in
292      verification/global_ocean.90x40x15/results_ad_nlfs
293    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
294      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
295      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
296      with SEAICE_CGRID defined.
297    o move calendarDumps from "data" to "data.cal" and clean-up the code
298      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
299    o add useEXF & useCAL flags (for now, set in hard-coded way)
300    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
301      (were missing in NH mode, and wrong in quasihydrostatic mode).
302      waiting for Chris updated version of calc_gw to add those CALLs.
303    o fix bug in quasihydrostatic S/R ;
304      add a test for this option: global_ocean.90x40x15.qshyd
305    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
306      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
307    o add on/off flag useOffLine for package OFFLINE
308    o seaice:
309      - modify advection so that it works also on the C-grid
310      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
311        problem in multi-tile runs with C-grid
312      - add flags for clipping ice velocities and/or masking solver forcing
313      - fix drag (ocean on ice) formulation and a bug that caused noise in the
314        C-grid solver
315      - added a few comments to seaice_diffusion.F
316      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
317        are now exclusive)
318      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
319        required re-ordering the code a little:
320       + make DAIRN global variable (defined in SEAICE)
321       + move computation of the viscosities eta and zeta into a new separate
322         routine (because I need to recompute them in seaice_ocean_stress.F)
323    
324    checkpoint58b_post
325    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
326      update output.txt of exp. aim.5l_cs.thSI
327    o various mnc cleanups and improvements:
328      + shrink lookup tables by factor of ~4
329      + better error reporting when running out of lookup space
330      + able to handle longer path/file names (up to 500 chars)
331    o adjoint:
332      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
333      - TBD: "hidden" mom_vecinv recomp. in dynamics
334    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
335     (allow to differentiate between forcing components using new integer flags:
336      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
337     and add new flag to put Dissipation tendency out of Adams-Bashforth.
338    o ecco
339      - enable trend removal from SSH anomaly obs.
340    o adjoint
341      - a fix for PmEpR when #undef EXACT_CONSERV
342      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
343      - try to fix "hidden" recomp. in forward_step for NLFS
344        (NLFS seems broken sometimes after I checked it in)
345    o seaice:
346     - add c-grid version of the dynamic solver:
347       + three new routines that are the c-grid substitute lsr, dynsolver
348         and ostres
349       + put a few fields that were local to dynsolver into global common
350         blocks, so that I can move the computation of stresses etc into
351         seaice_lsr (saves coding but may break the adjoint).
352     - replace more hardwired parameters by runtime parameters
353     - add ice masks that mask the rhs of the implicit solvers where there
354       is no ice (commented out in seaice_dynsolver, because i am not sure
355       if this works properly), eventually this should replace the clipping
356       of ice velocities in seaice_dynsolver to +/-40cm/s.
357    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
358      include it only where its needed
359    o move balancing of fluxes before the call of external_forcing_surf
360    o seaice:
361      - correct units of turning angles (now they are really in degrees)
362      - move computation of GWATX/Y out of main routine into dynsolver
363      - initialize GWATX/Y in seaice_init
364    o Apply mask on Fresh-Water flux (needed for SSH forcing).
365      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
366    o seaice: add runtime flags for turning angles (default to zero)
367    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
368      and trend from exf forcing and ctrl control adjustments
369    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
370      (since checkpoint57x_post)
371    o change the default rotation period to 86164.s = the Earth rotation
372    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
373      and based on a reference stratification. Tested within hs94.cs-32x32x5.
374    o seaice advection: add code for choosing between the default (2nd order
375      central differences) and multiDim advection schemes provided by
376      pkg/generic_advdiff
377    o seaice:
378      - removed all references to SEAICE_GRID.h fields from
379        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
380        (cubed-sphere configuration will change a little)
381      - grid computations in seaice_init are obsolete now.
382      - cleaned up code a little so that is easier to read (hopefully).
383      - added new (better?) discretizations of default advection and diffusion
384        (turn on with SEAICEuseFluxForm)
385      - replace 1 in 3d global fields by kSurface in growth.F
386      
387    checkpoint58a_post
388    o seaice:
389      - bug fix in advect.F
390    o shelfice:
391      - separate shelfice load anomaly from pload (breaks with time
392        dependent forcing), => introduce constant field shelficeLoadAnomaly.
393        Its default is 0., but it may be computed more cleverly from (unknown)
394        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
395        done offline. A good approximation of the pressure load anomaly is
396        necessary to avoid large initial adjustment processes underneath
397        deep-reaching shelfice.
398      - small fix in ISOMIP shelfice_thermodynamics
399      - add more sophisticated thermodynamics of Hellmer (1989), this is
400        now the default
401      - give a few constants more intuitive names
402    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
403      if bulk formulae are used in long integration (especially EmPmR). Turn
404      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
405      if balancePrintMean, the imbalance that is substracted is printed to
406      STDOUT.
407    o fix bug (typo) in obcs_apply_eta.F
408    o add a new package shelfice which enables us to model the circulation
409      underneath shelf-ice with draughts of hundreds of meters.
410     - works
411     - to do: + include improved thermodynamics
412              + check whether kSurfC (from model/inc/SURFACE.h) can be used
413                instead of new field kTopC
414              + can we use topoFile, Ro_surf and existing code in ini_depth.F
415                instead of new field R_shelfIce and new code in ini_depth.F
416                and ini_mask_etc.F?
417              + adjust vertical mixing schemes?
418    o seaice pkg:
419     - add a cpp-flag to include a simple formula for a salinity dependent
420       freezing point of sea water at the surface
421     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
422       meridional stresses are now different (and hopefully correct)
423    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
424       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
425       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
426    o pkg/diagnostics: add options and parameters for regional-statistics
427       diagnostics ; define regions by reading a region-mask from a file
428       (might add other options later)
429    o pkg/bulk_force:
430     - add option and parameters to use AIM surface-flux formulae.
431     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
432       others forcing fields (defined in PARM05, parameter file "data") are loaded
433       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
434     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
435     - use the right EXCH call for uwind,vwind (to work on CS-grid).
436     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
437       and parameters (note: calcWindStress replaces .NOT.readwindstress).
438     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
439    
440    checkpoint58
441    o add "--embed-source" option to genmake2 which, when the supporting
442      tools can be compiled (as determined by genmake2) will turn on the
443      embed_files package which then embeds the entire MITgcm source code
444      (*.[fFhc] + Makefile) used for the build within the executable
445      - requested by CNH but off by default
446      - adds a paltry <9MB to the mitgcmuv executable in most cases
447      - only writes the output when useEMBEDSRC in eedata is true
448    o clean up 3-dim. relaxation codes:
449      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
450      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
451      * Thanks to Tom Haine for testing!
452    
453    checkpoint57z_post
454    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
455      affects output (@ truncation level) of exp. plume_on_slope ; updated.
456    o fix the pickup behavior for obcs in combination with ptracers
457    o fix a bug in ptracers_external_fields_load
458    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
459      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
460    o transfered surface NH pressure to eta field (if exactConserv).
461    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
462         and update lab_sea output.txt file.
463    o completing 3-dim. relaxation code: additional term
464         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
465      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
466      * At compile time, in "EXF_OPTIONS.h" set
467          #define  ALLOW_CLIMTEMP_RELAXATION
468          #define  ALLOW_CLIMSALT_RELAXATION
469      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
470          tauThetaClimRelax3Dim = 15552000.0,
471          tauSaltClimRelax3Dim  = 15552000.0,
472      * 3 cases:
473          1) Use a constant-in-time 3-dim. field
474          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
475          3) Real-time relax. to time-evolving prescribed field
476    o Adding Laplacian-type smoothness constraint on
477      initial and boundary (forcing) controls (ic, bc)
478      * enable at compile-time via
479        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
480      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
481      * Absolute scale somewhat unclear so far
482      * no area weighting was included since no other cost term does so far
483    
484    checkpoint57y_post
485    First step for a NLFS adjoint
486    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
487    o new init. routines for calc_r_star, calc_surf_dr
488    o still need to deal with ini_masks_etc
489    o testreport seemed happy
490    checkpoint57y_pre
491    
492    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
493    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
494    o add new offset feature to offline pkg (plus minor cleanup)
495    o cfc fixes for final year of integration
496    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
497      be in GCHEM_OPTIONS).
498    
499    checkpoint57x_post
500    o fix testreport Pb in multiple test experiment.
501    o cleanup our namelist syntax in verification:
502      - make it more F95 standards compliant (some work still needed)
503      - allows the vast majority of our tests to work with gfortran
504    o Non-Hydrostatic:
505     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
506     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
507    o Allow to apply AB on T,S rather than on AB(gT,gS):
508     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
509     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
510       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
511     - need a "clever" read_pickup to restart from the other AB formulation
512    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
513    o remove some unused variables (reduces number of compiler warnings)
514    o adjoint
515      * Disable useVariableViscosity for adjoint for time being
516        (there are a number of extensive recomputations)
517      * Initialize certain variables needed for adjoint
518    
519    checkpoint57w_post
520    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
521                 fix the singleCpuIO RS version of MDSWRITEFIELD
522       and add a WARNING if using globalFiles=T with multi-processors.
523    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
524      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
525    o tracer advection scheme:
526      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
527       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
528       was not very convenient).
529      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
530       (further tests needed for the implicit DST & Flux-Limiter schemes).
531    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
532      and sRef for convenience, handy, when you want to initialize
533      ptracers in a large domain with a constant non-zero value. Also,
534      untangle ptracers_init.F a little.
535    
536    checkpoint57v_post
537    o change dome exp. to use variable viscosity in side-drag terms.
538    o remove all the files from the cfc_offline test since they are now
539      incorporated into tutorial_cfc_offline which has been producing
540      identical results for a few days of testing
541    o add new parameter: sideDragFactor to enable half-slip-side BC
542      and change side-drag S/R to use viscosity from mom_calc_visc
543      (can switch back by setting sideDragFactor=0.); affects results at
544      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
545       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
546    o vorticity & strain are now computed without masking, to account for
547      no-slip-side BC in variable viscosity calculation ; mask is applied
548      anyway later on, before computing advection/coriolis terms.
549    o modify exp4 to test new obcs support for reading from external files
550      and for passive tracers
551    o fix behavior of ptracers_monitor when monitor output is written to a
552      netcdf-file; still not independent of monitor.F (writes in the same
553      file).
554    o change default value of tRef (put a uniform, meaningful value for ocean
555      & atmos) and initialize sRef (was missing, as Martin mentioned).
556    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
557      to be proportional to enstrophy dissipation length.  Thus,
558       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
559      This is now consistent with Smagorinsky and with the manual.
560    
561    checkpoint57u_post
562    o OBCS and PTRACERS: add open boundary support for passive tracers
563      - either use homogenous (pseudo) v.Neumann conditions or prescribe
564        OB-values from file; this is not different from the way theta and salinity
565        are treated
566      - however, Orlanski-radiation conditions are not supported, and the model
567        will stop if you use pTracers and Orlanski at the same time.
568      - beefed up the rountine obcs_external_fields_load: now only those open
569        boundary values are overwritten with values from files for which there
570        are really files, otherwise the OB-fields remain untouched. This makes
571        it possible to use different OBs at different ends of the domain (as
572        with EXF)
573    o reduce number of exch calls in shap_filt (s2).
574    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
575      truncation level) 4/5 MLAdjust test results (11&12 digits match).
576    
577    checkpoint57t_post
578    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
579    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
580      same truncation, independent of the face number: affects affects several
581      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
582    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
583      note that biharmonic viscosity + no-slip was not tested in any experiment.
584    o fix bug in non-linear free-surf side-drag ; generate new output for
585      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
586    o make mnc honor the writeBinaryPrec flag for most kinds of output
587    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
588    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
589      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
590    o add brackets in multi-terms sum to get same truncation, independent of
591      the face number (manage to get exactly same value of gU,gV at the cs-edge)
592      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
593    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
594      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
595      a maximum grid-scale Reynolds number.  Also, changes all length calculations
596      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
597      Suggested values of viscosity parameters found in mom_calc_visc.
598      Many new viscosity diagnostics available.
599    
600    checkpoint57s_post
601    o Add clearing-house for viscosity calculations, mom_calc_visc and
602      correct numerous bugs in LeithD and Smagorinsky discretizations.  
603      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
604      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
605      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
606      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
607      The Strain-Tension form is now called with useStrainTensonVisc=.true.
608      ViscAhStrain and viscAhTension are now retired.
609    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
610    o In response to JMC's bug report, genmake2 now ignores any soft-links
611      that it finds in the *current* directory when searching for files.
612      Soft-links found in any other source directories will still work as
613      they did before.
614    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
615      a C routine to unlimit the stack size
616    o mnc-ify pkg/aim snapshot vars
617    o mnc-ify pkg/land as requested by Daniel
618    o various changes to mnc including:
619      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
620      - output can now be grouped so that all files within a group
621          change the ITER portion of their names in lock-step together
622      - can now read ("global") PER-FACE (in addition to PER-TILE) files
623          and works with both EXCH1 and EXCH2 (but needs more testing)
624      - writing works for all verification test cases w/ g77 on Linux
625    
626    checkpoint57r_post
627    o make MNC variable initialization happen earlier
628    o add diagnostics for (almost) each term of the momentum Eq.
629    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
630    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
631    o remove MINIMAL_TAVE_OUTPUT option ;
632      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
633    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
634      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
635    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
636    o add time-dependent SST, SSS control
637    o cost terms in ecco/ modularized (new cost_generic.F)
638    o cost_averages routines are modularized (new cost_averagesgeneric.F)
639    o new infrastructure for seaice model vs. obs misfits in seaice/
640      * driver from the_main_loop.F is seaice_cost_driver.F
641      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
642      * gradient check in Exp. 6a of natl_box_adjoint/
643    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
644      (see README file)
645    
646    checkpoint57q_post
647    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
648    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
649      - bug was reported by Jean-Michel and Ian Fenty
650    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
651      update exp. cpl_aim+ocn output.
652    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
653      Needed for high-res. runs with large global files
654      to be able to limit tapelev size
655    o Changed some tests for adjoint:
656      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
657      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
658      * global_ocean.90x40x15/ back to default 3-level checkpointing
659    o Modifications to enable scripted COMMON to MODULE conversion
660      * verification/OpenAD/code/ has necessary scripts and description;
661      * converts, compiles and runs successfully;
662    
663    checkpoint57p_post
664    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
665    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
666      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
667    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
668    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
669      (was already the case for dissipation with mom_vecinv,
670       and also the case for grad.PhiHyd when staggered-timeStep)
671      This will allow to put dissipation out-off the AB time-stepping.
672     Unfortunately, affects truncation error. Update output of exp. that "fails"
673      (cg2d matching number) and leave the others for later: front_relax(10),
674      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
675      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
676    
677    checkpoint57o_post
678    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
679      (2) its ready to be documented during the 20050801 DocFest
680    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
681      for ideal_2D_oce and lab_sea on linux_ia32_g77
682    o set to #undef CTRL_SET_OLD_MAXCVARS_30
683      in global1x1_tot/code_seaice_adj to access indices 32, 33
684      (worth another tag)
685    
686    checkpoint57n_post
687    o adding precip control xx_precip 32
688    o adding swflux control xx_swflux 33
689    o Replacing 10 forcing penalty cost routines by 1 generic.
690    o Implementing partitioning in time-mean and variable adjustment
691      for atmos. state.
692    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
693    o in natl_box_adjoint:
694      * updated exp 1 to 10
695        (but does not have time-mean vs. variable split results yet)
696    o updated global1x1/*_seaice_adj/
697      to incorporate latest changes
698    o enable useSingleCpuIO for mdsio vector routines
699      (applies in particular to tapelev I/O)
700    o removed inefficient K-loop in all active_file*control*.F
701    
702    checkpoint57m_post
703    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
704      and advect_cs (use EXCH-2 and standard cs-32 grid files).
705    o pkg/exch2: filling of face-corner halo regions is optional
706      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
707    
708    checkpoint57l_post
709     tag before updating tutorials (pre-release-2)
710    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
711       for output and interpolation of input fields onto model grid)
712    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
713       Affects results of exp. rotating_tank ; update output.txt.
714    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
715          and taking the square quantity and/or using a fraction-weight field.
716    o fix aim_diagnostics_init.F mate numbers.
717    o add mnc output capability to diagnostics/diagstat and update
718      our cvsignore files for the ACSII output generated
719    
720    checkpoint57k_post
721    o lab_sea now uses diagnostics package and provides a suite of
722      new EXF diagnostics output.
723    
724    checkpoint57j_post
725    o exf
726      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
727        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
728        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
729      * extended diagnostics output
730        - now includes all EXF variables
731        - hs, hl moved to common block
732        - separate S/R for diagnostics, called after ctrl vector is added
733        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
734        - EXFqnet contains true Qnet (i.e. includes qsw)
735      * updated verif. lab_sea, global_with_exf
736      * Rearranging hflux (exf_mapfields -> exf_getforcing)
737        to ensure that diagnostics sees a true EXFqnet
738    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
739    o diagnostics pkg: change pointers so that 1 diagnostic can be used
740      several times with different frequencies.
741    o mnc-ify the thsice package as requested by Daniel Enderton
742      - the monitor--MNC output needs work
743      - many attributes need to be added (most are currently blank)
744    o mnc-ify theaim_v23 package as requested by Daniel Enderton
745      - many attributes need to be added (most are currently blank)
746    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
747    o add Sadourny like discretization to the 4th.O vorticity advection scheme
748    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
749      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
750         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
751    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
752     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
753    
754    checkpoint57i_post
755    o Diagnostics package was changed: diagnostic allocation is now deactivated
756      by setting an empty file name in the namelist (used to be by setting 0 frequency)
757    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
758      add 1rst Order upwind vertical Shear.
759    o add a quick fix for A/B checkpointing in OFFLINE mode
760    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
761      end-run around the C/Fortran linking horror in eesup/src/timers.F
762    o added pkg/runclock: allows user to terminate run based on wall clock
763    o added non-hydrostatic scaling parameter: nh_am2
764    o pkg/my82: futile attempt to make results compiler-independent by adding
765      some "_d 0", etc. no effect.
766    o for mnc output, fill the 'T' coordinate var with myTime and create a
767      separate 'iter' variable for iteration count
768    o pkg/diagnostics:
769      add new capability: output of Global/Regional & per-level statistics ;
770      tested against monitor output (including land & thSIce) on various exp.
771    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
772    
773    checkpoint57h_done
774      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
775      data.diagnostics, data.gchem, data.ptracers) is done.
776    
777    o pkg/diagnostics: prepare for Global/Regional statistics.
778      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
779    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
780      and rename it: DIFFERENT_MULTIPLE
781    
782    checkpoint57h_post
783    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
784    o pkg/diagnostics: change output frequency, now in seconds (instead
785      of Nb of iterations). This requires to change data.diagnostics.
786    checkpoint57h_pre
787    
788    o in mnc, let the user create the output dir if both mnc_outdir_date
789      and mnc_outdir_num are false
790    o add fflags() to pkg/diagnostics which allows one to specify, on a
791      per-file basis, the file precision [default behavior is unchanged]
792    o added diagnostics to pkg/kpp, including computation of mixed layer
793      depth based on a temperature/density criterion
794    o updated verification/natl_box to test the new pkg/kpp diagnostics
795    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
796    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
797    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
798      not mnc -- this mistake was found by JMC and is now corrected
799    
800    checkpoint57g_post
801    o add Adams-Bashforth 3rd Order time stepping:
802      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
803      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
804    checkpoint57g_pre
805    
806    o make lambda[Theta,Salt]ClimRelax spatially varying
807      (default remains spatially uniform constant based on tau)
808    o added new control variables
809      * init. uVel, vVel, etanN
810      * lambda[Theta,Salt]ClimRelax
811    o separate masks used for ctrl_pack/unpack 'from write_grid' output
812      (suggested by G. Forget)
813    
814    checkpoint57f_post
815    o add parameter "baseTime" = model base time = time at iteration zero
816      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
817      account for baseTime shift
818    o move Coriolis arrays from PARAMS.h to GRID.h
819    checkpoint57f_pre
820    
821    o mnc-ifying the seaice package
822    o introduced an alternative length scale calculation for use in the limiting
823      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
824    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
825    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
826      as well as grad(vort3).  Made it compatible with both approximate form
827      for the cubed sphere and full form of these gradients.  Added flag
828      useFullLeith to select between approximate and full form.  
829    o add "d0" in getcon.F to reduce differences between compilers/platforms
830      update output.txt of exp. fizhi-gridalt-hs
831    o change port_rand funtion to allow to set the seed.
832    o fix obscure MNC bug involving conversion between reals and integers
833      - it caused no problems with certain (eg. gcc, ifc) compilers but the
834        new version is now more standards-compliant
835    o adjoint-related modifications
836      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
837      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
838      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
839    
840    checkpoint57e_post
841    o Adding eddy stress controls a la Ferreira et al.
842    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
843    
844    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
845      update output.txt of exp. fizhi-gridalt-hs
846    o add more "Z" dimensions and associated coordinate vars to MNC
847    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
848    o parameter calendarDumps: when set, approximate months (30-31 days) and years
849      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
850      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
851      months and years.  Requires pkg/cal.
852    o diagnostics: add pickup functionality
853      - off by default for backwards compatibility
854      - current version only uses MDSIO -- MNC will be added
855    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
856    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
857    
858    checkpoint57d_post
859    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
860    o modify verification/ideal_2D_oce so that it tests the creation of mnc
861      output from the diagnostics package
862    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
863    o make genmake2 more portable by using ".$FS" instead of ".f" for more
864      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
865    o add coordinate variables to the MNC output from the diagnostics package
866    o change MNC-flags default value: true when useMNC=TRUE
867    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
868      the ability (off by default) to read the grid information using MNC
869    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
870    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
871    o do snap-shot diagnostics at the middle of the time-interval (instead of
872      at the end).
873    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
874      new test for AIM with thSIce + slab-ocean
875    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
876    o move state variable diagnostics to the beginning of the time step ;
877      (note: still needs some work specially for snap-shot diagnostics)
878      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
879    
880    checkpoint57c_post
881    o Change testing option (-ieee) to get closer agreement between g77 & ifort
882    o generate new output.txt files on faulks with g77 & the new -ieee option
883    checkpoint57c_pre
884    
885    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
886      update output.txt of exp. global_ocean.90x40x15
887    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
888      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
889    o add saltFlux(+File) forcing capability with periodicExternalForcing
890    o allow to use pkg diagnostics for GM-Redi & ThSIce output
891    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
892    o improvements for the MNC output from DIAGNOSTICS:
893      - correct handling of the unlimitied dimension
894      - all dims now have associated coordinate variables
895      - variables located at U, V, and Corner ("Z") points are now written
896        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
897        *all* data points are output
898    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
899    o added pkg/seaice/seaice_monitor.F
900    o mdsio_readfield.F can now read files visible only to master MPI process.
901    o pkg/seaice: some test code for ice-modified ocean stress
902    o exf_getffields interpolation defaults to bilinear for all scalar forcing
903      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
904      spurious negative numbers for precipitation and humidity.  Will cause
905      some small numerical differences for integrations using pkg/exf/exf_interp.F.
906    o pkg/ctrl/
907      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
908        May be enabled via doPackDiag
909      *  introduce z-scaling of
910         + gradient (doZscalePack) and
911         + control (doZscaleUnpack)
912    o pkg/mdsio/
913      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
914      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
915    
916    checkpoint57b_post
917    o simplify options in diagnostics_fill arguments (remove weird combinations)
918    o fix MNC coordinate variables so that they now contain per-face index
919      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
920      general, EXCH2 grids are only aligned to a "local" coordinate system
921    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
922    o Implement instantaneous output within pkg diagnostics:
923      setting a negative frequency in data.diagnostics produces
924     "snap-shot" output (as opposed to time-average if freq > 0)
925    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
926      NOTE: change ptracer diagnostics name: use 2 characters to work with
927            more than 9 tracers. Add also diagnostics of advect & diffus flux.
928    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
929      becomes the coordinate variable for the 'T' dimension
930    o add CF-style coordinate variables to MNC
931      - just a first cut:  numbers are meaningless on the cubesphere and
932        missing along the T axis but otherwise it works!
933    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
934    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
935    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
936      this is based directly on what the model compute, so that the content of
937      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
938    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
939    o clean up build options files for SunOS, in particular
940      - remove -traditional from xmakedepend
941      - change -xarch=v9 to -xarch=native for f77
942      - restore use of make (not gmake)
943      - add CC=gcc if using g77
944    o changes per discussion of AM, JMC, & EH3 today:
945      - move redundant "grid" variables out of "state" -- in preparation of
946        creating proper CF-style coordinate variables and in recognition
947        that any/all grid variables can be easily copied (eg. w/NCO) from
948        the grid files into any of the other NetCDF files
949      - *always* output grid variables with MDSIO (this will eventually be
950        changed)
951      - output MNC grid file if useMNC is true
952    o every instance of _END_MASTER() has been found and replaced with
953      _END_MASTER( myThid ) in order to satisfy certain picky Sun
954      preprocessors
955    o re-arrange diagnostics pkg initialisation:
956     - allow each package to extend the available diagnostics list
957     - add some checking and fix small problems (multi-threaded, ...)
958     - new S/R diagnostics_fill (replace fill_diagnostics):
959       look through the short list of active diag. (instead of the long list)
960       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
961    
962    checkpoint57a_post
963    o this set of changes restores TAMC compatibility
964      tested for global_ocean.90x40x15 adjoint on trough
965      (what a pain)
966    
967    checkpoint57a_pre
968    o some modifs in tools/build_options for sunos
969    o call ctrl_pack for ctrl at end for optimcycle=0
970    
971    checkpoint57
972    o add horizontal bi-harmonic viscosity for vertical velocity
973      - new parameter viscA4W (defaults to viscA4)
974      - affects only non-hydrostatic code
975      - to be done: no-slip lateral boundary conditions
976    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
977    o implement Implicit Vertical advection for pTracers
978    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
979      (implemented also for implicit vertical diffusion & advection)
980    o OBCS: extend application of tracer open boundary conditions
981      to a strip beyond the boundary of width Olx/Oly
982    o add call monitor to TAF set of required calls (flow directives)
983      and include in natl_box_adjoint
984    o untangle a few ifdefs related to cost, ctrl, autodiff
985      untangel a few ALLOW_ECCO_OPTIMIZATION
986    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
987      (theta2, salt2 in ecco_cost_weights)
988    
989    checkpoint56c_post
990    o OBCS as control variables
991      - update ctrl_ad_diff.list, obcs_ad_diff.list
992      - remove balance of obcs controls from default
993      - fix index bug nobcs in ctrl_init
994      - fix dummy fields filen in ctrl_pack
995      - add dummy weights for obcs
996    o lsopt: comment out fort.94 output
997    o optim:
998      - remove unnecessary header files
999      - adjusted namelists
1000      - add xerbla.F to Makefile
1001    o exf:
1002      - multiple modifications of exf_check_range
1003      - unit change in exf_init_runoff from [m/year] to [m/s]
1004    o mdsio:
1005      - i/o-vector change debugLevel from debLevA to debLevB
1006    
1007    checkpoint56b_post
1008    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1009      is called from DO_THE_MODEL_IO
1010      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1011      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1012      - clean up PTRACERS_WRITE_TIMEAVE a little
1013    o add another verification experiment that tests both the cfc-pkg and
1014      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1015      reactive tendencies treated inline with regular timestepping
1016    o testreport previously did a lousy job of comparing small numbers, so
1017      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1018      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1019      testreport.
1020    o ptracers_monitor: bug fix for MPI
1021    
1022    checkpoint56a_post
1023    o GCHEM: finish reorganizating the package
1024      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1025        (introduces another 3D-array for each passive tracer, but only if
1026        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1027        gchemTendency is not needed because the timestep is done separately)
1028      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1029      - GCHEM is now---more or less cleanly---separate from PTRACERS
1030      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1031        so clear to me how that should be done in a general way.
1032    o CFC: improve formatting of output in CFC_ATMOS
1033    o PTRACERS:
1034      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1035        that ALL experiments with ptracers enable can be checked. This makes
1036        GCHEM_MONITOR obsolete.
1037      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1038        monitorFreq
1039      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1040    o add PTRACERS (PTR0[1-5]) to testreport output
1041    o exf_check_range:
1042      * default changed to .TRUE.
1043      * will check values for niter0 if debLevA, every timestep if debLevB
1044      * STOP in exf_check_range if 'out of range'
1045      * range chosen generous to allow for potential extema
1046      TBD: a version with stricter range
1047           permitted range would be runtime parameters
1048    o GMredi:
1049      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1050      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1051      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1052    o GCHEM:
1053      - move call to GCHEM_FORCING_SEP, so that it is now called before
1054        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1055      - introduced a useGCHEM runtime flag and applied it everywhere.
1056      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1057        this flag is now only visible within GCHEM-pkg routines.
1058      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1059        be replaced by a 3D array that is computed before thermodynamics; for
1060        this, the tracer ID iTracer had to be included into the parameter list
1061        of ptracers_forcing
1062      - set up forward_step to call gchem_forcing, that will replace
1063        gchem_forcing_int in ptracers_forcing
1064      - cleaning up
1065    o small cleaning of exch2: remove files that are also in eesupp/src
1066    
1067    checkpoint56
1068    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1069    o mnc: cleanup "full" files--fixes out-of-memory problem
1070    o ECCO-GODAE
1071      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1072      * fully merged and updated from SIO code
1073        windstress sign change affects
1074        - exf_inscal_[u/v]stress
1075        - sign of xx_tau[u/v] adjustments
1076        - signs in cost_scat
1077      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1078      * natl_box_adjoint updated and compressed
1079      * 2-level checkpoint switch added
1080        (tested in EXP. 1 of natl_box_adjoint)
1081      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1082    o SVD
1083      * first complete, non-hacked version for SVD calculations
1084      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1085        performed via direct access files admtlm_vector.it????
1086        (via ctrl_[un]pack)
1087      * optimcycle is used for ARPACK iteration counter
1088        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1089      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1090        and add linear transforms where necessary
1091      * controls are initial/final SST, SSS (can be extended; need to check
1092        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1093    o mdsio: filename info to both stderr, stdout
1094    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1095      from sign change
1096    
1097    checkpoint55j_post
1098    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1099      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1100    o add consistent build directories and .cvsignore files to verification
1101    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1102    o make all subroutines 30 or less characters in length for certain older
1103      compilers to work (a thorough search only turns up two routines in
1104      pkg/ptracers)
1105    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1106      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1107    
1108    checkpoint55i_post
1109    o change arrays for total vertical diffusivity (2.D if explicit,
1110      3.D if implicit) ; each ptracer uses its own background value.
1111    o added mnc/NetCDF output capability to ocn_compon_interf
1112      - added bits to verification/cpl_aim+ocn so that it can run on
1113        ITRDA and other clusters without the mpirun "-wd" option
1114    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1115      configuration
1116    o give MNC the ability to create additional files rather than
1117      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1118      - the default is just less than 2GB which is a practical limit
1119        on many systems
1120    o Compute the non-local term using either KPP vertical diffusivity (=default)
1121       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1122    
1123    checkpoint55h_post
1124    o add verification test "vermix"
1125    o remove all the *_ioinc flags and replace with the single global
1126      outputTypesInclusive flag
1127    o allow to set a vertical profile of vertical diffusivity for T & S
1128    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1129    o useMNC moved from data.mnc to data.pkg
1130    
1131    checkpoint55g_post
1132    o Renaming carbon AD experiments to comply with testreport conventions
1133    o Updating adjoint of Held-Suarez hs94.1x64x5
1134    o Fixing directives for non-ECCO forward_step, after ECCO directives
1135      have been fixed to avoid recomp. of do_oceanic_phys
1136      Works well for global_ocean.90x40x15,
1137      but recomp. issue remains for carbon
1138    o Updating adjoint output for natl_box_adjoint after
1139      pkg/ecco has been modified (see taga c55d_post)
1140    
1141    checkpoint55f_post
1142    o rename to timeave_init_fixed
1143    
1144    checkpoint55e_post
1145    o some delicate re-shuffle of store directives to avoid one
1146      extra call of do_oceanic_physics
1147      affects ecco_the_main_loop.F, do_oceanic_physics.F
1148      checkpoint_lev1_directives.h
1149    o NB: this may break global_ocean adjoint temporarily,
1150      but it is clear how to fix it. Will do later, need this now.
1151    
1152    checkpoint55d_post
1153    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1154    o ecco_cost_weights is modified to 1x1 runs
1155    o modifs to allow observations to be read in as
1156      single file or yearly files
1157    o enable to read exf forcing fields as either
1158      single file or yearly files (flag useExfYearlyFields)
1159    checkpoint55d_pre
1160    
1161    o switch between 2-level and 3-level checkpointing
1162    o add ability of MNC to write local and "partial" (eg. 2D slices where
1163      the full 3D field is never actually stored) arrays to NetCDF files
1164      with the correct (that is, the complete multi-dimensional) set of
1165      array indicies
1166      - used in mom_vecinv() to write the diagFreq output
1167      - tested (demonstrated) in verification/aim.5l_cs
1168    o further mnc-ification
1169      - add verification/lab_sea to the list with mnc setups
1170      - fix undefined mnc v-names in cd_code
1171      - add kpp to mnc output (both snapshot and timeave)
1172    o non-hydrostatic code
1173      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1174        in calc_gw.F
1175      - defaults to viscAh
1176      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1177        friction or Leith) in non-hydrostatic mode, as long as there is
1178        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1179    o pkg/cost
1180      extend simple cost functions to treat time mean quantities
1181      (T,U,V) via cost_accumulate_state from cost_tile
1182    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1183        be 2 times larger than the minimum size the advection scheme requires.
1184        now get a perfect conservation of salt in advect_cs test-exp (updated)
1185    o GGL90 (Gaspar's TKE mixed layer)
1186      - add horizontal diffusion of TKE, requires exchanges in
1187        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1188        default. In OPA there is no horizontal diffusion of TKE but the
1189        mixing coefficients are computed from a horizontal average of TKE of
1190        6 points or so. I think that diffusion has a little more physical
1191        justification.
1192      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1193        was in vain)
1194      - mask tke-variable in ggl90_init
1195    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1196    o fix biharmonic diffusion on CS-grid.
1197    o more obcs stuff
1198      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1199        for reading boundary values. This routine is called from
1200        obcs_prescribe_read
1201      - updated obcs_check
1202      - changed sponge layer relaxation parameter units for days to seconds
1203      - turned off sponge layer by default
1204      - changed argument list of OBCS_CALC to myTime+deltaTclock
1205      - fixed about 35 bugs in obcs_external_fields_load
1206    
1207    checkpoint55c_post
1208    o obcs stuff
1209      - new runtime flags useOBCSprescribe, useOBCSbalance
1210      - re-arranged obcs_calc
1211      - moved exf_getobcs to obcs_prescibe_read
1212        obcs_prescibe_read is called after ORLANSKI stuff
1213        and independent of it (executable can contain all).
1214      - updated obcs_check
1215      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1216        These may be necessary only if tangential velocities are
1217        prescribed at OB, not sure, needs testing.
1218    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1219      which simplifies the calls and passes the ifc check-bounds test
1220    
1221    checkpoint55b_post
1222    o add a 2D scalar, Z location, exchange_2 routine.
1223    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1224      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1225      affects advect_cs results (for the wrong reason): update output.txt
1226    o use a more standard discretization for biharmonic viscosity ;
1227     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1228      affects results of dome set-up: update output.txt
1229    o fix gad_advection.F (CubedSphere part), back to version 1.23
1230    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1231    
1232    checkpoint55a_post
1233    o merged code to
1234      * prescribe/read time-dependent open boundaries
1235        (works in conjunction with exf, cal)
1236      * sponge layer code for open boundaries
1237      * each boundary N/S/E/W now has its own CPP option
1238        (healthy for the adjoint)
1239    
1240    checkpoint55
1241    o up-to-date adjoint of previous breaks
1242      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1243      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1244      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1245      - carbon: * remove tr1-related adjoint verification
1246                * add ptracer as control variable
1247    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1248      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1249    
1250    checkpoint54f_post
1251    o in verification/carbin/ remove experiment related to
1252      ALLOW_PASSIVE_TRACER (array tr1 etc)
1253      code_ad/ input_ad/ results_ad
1254    
1255    o add two new packages
1256      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1257        + subject to optimization (memory)
1258      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1259        + subject to reordering (many GOTOs in the original code)
1260        + so far opps is called for every (i,j) point, and then operates in
1261          the vertical; one may want to reorder the scheme in order operate in
1262          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1263          fields)
1264    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1265      - all verification tests compile and run with linux_ia32_g77
1266      - defaults are compatible with current input files--nothing
1267        should change if you were not previously using MNC
1268      - MNC output has been added in numerous places (eg. timeave)
1269        but there are still a few writes not yet do-able with MNC
1270        (this is in progress)
1271      - flags now allow for either/or/both use of MDSIO and MNC and
1272        documentation will soon follow
1273      - numerous small formatting cleanups for ProTeX
1274    o add version info (via BUILD_INFO.h) to MNC and stdout
1275    
1276    checkpoint54e_post
1277    o add two new packages
1278      - pp81 (Packanowski and Philander, 1981), Richardson number and
1279        stratification dependent mixing
1280      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1281      - these scheme operate in a similar manner as KPP (without ghat, of
1282        course), however there is only one diffusivity that is used for both
1283        temperature and salinity (and passive tracers)ç
1284    o add offline package
1285    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1286      provided by Stephanie Dutkiewicz
1287    o genmake2: add ability to search for C compilers and cleanup test output
1288      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1289    
1290    checkpoint54d_post
1291    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1292    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1293      leading to additional shift by 5 days each year of integration
1294       (i.e. leading to considerable offset over the years)
1295    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1296    o start with no AB and no initial filtering (staggerTimeStep):
1297      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1298    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1299      (external loading & cpl import/export stay in forward_step.F)
1300    o update coupling interface to work with new staggerTimeStep
1301    o change MDSIO ptracers_pickup.
1302    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1303    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1304    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1305    
1306    checkpoint54c_post
1307    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1308      this affects (truncation error) output.txt of test-exp:
1309       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1310    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1311    o change Qnet to always be the net heat flux, (+upward).
1312      affects (truncation error) output of natl_box exp.: updated
1313    o define the max number of passive tracers in PTRACERS_SIZE.h
1314    o start to test mnc routinely in exp0
1315    o add sea-ice loading (sIceLoad) as a new forcing field.
1316    
1317    checkpoint54b_post
1318    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1319       impressive on Altix and Opteron systems)
1320    o diagnostics can now write NetCDF files through the mnc package
1321    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1322    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1323    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1324      affects (truncation error) output of lab_sea & natl_box exp.: updated
1325    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1326    
1327    checkpoint54a_post
1328    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1329    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1330    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1331    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1332      + internal_wave (shift in writing cg2d_ini_res)
1333    checkpoint54a_pre
1334    
1335    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1336      - modified verification/lab_sea and natl_box_adjoint accordingly
1337    
1338    checkpoint54
1339    checkpoint53g_post
1340    o prepare splitting of thermodynamics: store convect.counter in common block
1341    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1342      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1343    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1344    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1345    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1346    o restore adjointability
1347    
1348    checkpoint53f_post
1349    o modifications that affect AIM experiment results (update output.txt):
1350      - no advection of S at top interface Nr (pkg/generic_advdiff)
1351      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1352    o AIM pkg:
1353      - include stability function into surf.Flux derivative relative to Tsurf
1354      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1355    
1356    checkpoint53e_post
1357    o merged cylindrical coord configuration
1358    o added rotating_tank experiment
1359    checkpoint53e_pre
1360    
1361    checkpoint53d_post
1362    o faulks upgraded: re-generate output.txt that have changed:
1363       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1364    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1365    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1366    o added Sadourny discretization of Coriolis
1367      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1368      - re-enabled use of omega3 (useAbsVorticity)
1369    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1370      vector-invariant equations
1371      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1372    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1373      hopefully without new bugs
1374      - still to do: biharmonic friction for non-hydrostatic w
1375    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1376    o regenerated output for global_ocean_ebm (using -ieee)
1377    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1378      of mom_common/
1379      - simple re-arrangement of instructions within computing loop
1380    checkpoint53d_pre
1381    
1382    checkpoint53c_post
1383    o new version of coupler for AIM+thSIce and Ocean models
1384     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1385     - land: change Evaporation of snow
1386     - aim with thSIce: fix bug in snow-precip.
1387    o changes to calc_gw.F
1388     - bug fix for w^2 term near the bottom boundary
1389     - (hopefully) improve the lateral slip boundary condtions for use with
1390        partial/looped cells
1391      - because the bug fix changes two verification experiments anyway (exp5
1392        and plume on slope), change the lateral boundary condition from half slip
1393        to the value of no_slip_sides
1394    o ebm package wasnt quite up to the parallel task. Fixed that.
1395    o Adjoint of EBM package + verification
1396      * TLM OK
1397      * ADM not sufficient accuracy yet (needs further testing)
1398    
1399    checkpoint53b_post
1400    o Commiting new energy balance model to repository
1401      * package is pkg/ebm
1402      * verif. is verification/global_ocean_ebm
1403      * references are in ebm_driver.F
1404    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1405    C        Global thermohaline circulation. Part I:
1406    C        Sensitivity to atmospheric moisture transport.
1407    C        J. Climate 12(1), 71-82
1408    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1409    C        Global thermohaline circulation. Part II:
1410    C        Sensitivity with interactive transport.
1411    C        J. Climate 12(1), 83-91
1412    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1413    C        Destabilization of the thermohaline circulation
1414    C        by atmospheric eddy transports.
1415    C        J. Climate 7(12), 1870-1882
1416    o Will need long integration testing.
1417    checkpoint53b_pre
1418    
1419    o created pkg/mom_common in preparation for variable viscosity code
1420    o renamed and split ini_mnc_io
1421    o pkg/land: only liquid water can diffuse or run-off
1422    o AIM using land: soil wetness availability account for snow
1423    o added printMapIncludesZeros to EEPARMS namelist
1424    
1425    checkpoint53a_post
1426    o restore TAMC compatiility for exf_constants.h
1427      (no usage of _d in .h)
1428    o Additional storing in KPP in an attempt to fix
1429      TAMC problem with adjoint of KPP code.
1430      (no success...)
1431      Identical code works fine with TAF.
1432    o Fixed verification/natl_box_adjoint experiments.
1433      Initial conditions for Experiments 4 and 5 are now
1434      set to "SEAICE_initialHEFF=0", which is more reasonable,
1435      and hence gives results closer to that of Experiment 2.
1436      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1437    
1438    checkpoint53
1439    o stable checkpoint with up to date adjoint
1440      TLM tests only run for 1st grdchk at the moment. Its unclear if
1441      this is a code problem or a problem with resetting code for g_
1442      variables that is being autogenerated wrong.
1443      Otherwise:
1444       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1445       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1446         are both still in chaos following their security messes.
1447    
1448    checkpoint52n_post
1449    o various build (mostly genmake2) changes including:
1450      - ability to build/run more easily within Cygwin and MacOS X
1451      - more complicated Makefiles with a stronger dependence on Gnu Make
1452    o pkg/seaice modifications
1453      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1454        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1455        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1456      - changed proxy for geostrophic velocity and updated
1457        verification/lab_sea/results/* accordingly
1458      - removed ADI dynamic solver from pkg/seaice
1459      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1460        they caused a segmentation fault under certain circumstances
1461      - removed unused field WATR
1462    o bug fix in exf-package:
1463      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1464         now reflect that.
1465    o small fixes in the cal-package:
1466      - set reference date to first of January for the 'model'-calendar
1467      - failing of cal_CheckDate in cal_FullDate now actually results in a
1468        warning
1469    o small modifications in exf-package to increase flexibility:
1470      - change climtempfreeze from a constant to a runtime parameter that
1471        is specified in data.exf_clim (default = -1.9)
1472      - introduce runtime parameter windstressmax (default = 2.0) that is
1473        specified in data.exf
1474    o fix in pkg/thsice:
1475      - update Evap (Tsf changes) to be consistent with Latent heat flux
1476      - maintain snow precipitation unchanged (even if Tsf >=0).
1477     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1478    
1479    checkpoint52m_post
1480    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1481      this does not change any of the results, because myIter=0 in swfrac always
1482      lead to jwtype=2 (the default anyway), but the call makes little sense
1483      as a default
1484    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1485    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1486      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1487    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1488    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1489    o extending useSingleCpuIO option to work with new exch2 I/O format
1490      - old-style, missing-tile I/O is still accessible by defining CPP
1491        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1492    o monitor package can write to NetCDF files and/or STDOUT
1493    o fix re-definition bug in MNC_GRID_INIT_ALL()
1494    o doc/api_reference added
1495      - a framework for building an API Reference Manual using all
1496        the "protex" comments embedded in the code
1497      - see pkg/generic_advdiff, pkg/mnc for examples
1498    o MNC:
1499      - make myThid the last argument for all subroutines
1500      - new default for the grid files: NO halos
1501      - add useMNC and other run-time flags
1502      - separate per-file-group handling of the unlimited dimension
1503      - early initialization of MNC w/ flags read at the eeboot stage
1504        and lookup tables set in initialize_fixed
1505      - write all MNC output to a freshly-created directory
1506    o thermodynamics sea-ice (thsice) is now tested with testreport.
1507    o test exp. advect_cs: use the standard cs32 grid ; update output.
1508    o Added functionality to grdchk:
1509      pick global i,j,k position (or nearest wet) where to perform check.
1510    
1511    checkpoint52l_post
1512    o new land formulation:
1513      a) use ground enthalpy as prognostic variable to ensure exact
1514         energy conservation.
1515      b) account for water temperature and for latent heat of freezing
1516         in all processes (rain, run-off, ground storage)
1517      c) compute surface and ground temperature implicitly.
1518    o aim_v23 modification for new land model:
1519      a) Treat separately land / ocean / sea-ice surface fluxes
1520         to allow implicit computation of land & sea-ice surface temp.
1521      b) add snow precipitation.
1522    checkpoint52l_pre
1523    
1524    o fix problem (when 1 tile is empty) in min/max monitor.
1525    o fix bug in timeAve (u,vZetatave in common block)
1526    o no restoring terms under ice for pkg/seaice
1527    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1528    o bug fix for pkg/seaice pickups
1529    o change MNC call locations and add coordinate attributes
1530    o mask vorticity at the corner ; affects global_ocean.cs output
1531    o fix ini_curvilinear_grid ; test CS experiments with mpi
1532    o aim.5l_cs: modify sea-ice fraction input file ; update output
1533    o exf: Adding simple range check routine for exf fields after read
1534    
1535    checkpoint52k_post
1536    o removed top-level directory "diags"
1537      - we migrated these functions to pkg/timeave a long time ago
1538    o fixed bug introduced in pkg/monitor
1539    o accuracy ctrlprec = 32 insuffient for gradient checks using
1540      averaged fields (I/O via cost_averages)
1541      -> use ctrl.h in active_file*.F to control I/O precision.
1542    o paramter list of CALL ADTHE_MAIN_LOOP
1543    o added initial do_the_model_io to ecco
1544    o set all ...Freq to zero after cost_final
1545      taveFreq, dumpFreq, pChkptFreq
1546    o MAIN and ECCO differentiability restored
1547    
1548    checkpoint52j_post
1549    o fix nchklev in tamc.h for global_ocean...
1550    o Bringing flow and store directives up-to-date
1551    o Really weird thing!
1552      call do_the_model_io from the_main_loop with parameters
1553      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1554      TAF places a faulty re-call of initialise_varia
1555      after cost_final call which should not be there!
1556    checkpoint52j_pre
1557    
1558    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1559      error messages
1560    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1561    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1562      debug output
1563    o modfied mdsio_writefield.F to handle non-global files under exch2
1564    o update AIM Cubed-Sphere exp (aim.5l_cs):
1565      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1566    o update AIM Equatorial Channel exp:
1567      use standard aim_v23 pkg and change the SST fields to be more realistic.
1568    o globalFile now works with exch2
1569    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1570      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1571    o limit timeave output for hi-res integrations
1572    
1573    checkpoint52i_post
1574    o removed CPP_EEOPTIONS.h from verification/*/code
1575    o updated the tiling for global_ocean_pressure
1576    checkpoint52i_pre
1577    
1578    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1579      the old pkg/aim).
1580    
1581    checkpoint52h_pre
1582    o shortened offending lines in exch2_send_rx?.template
1583    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1584    o genmake2: add build & execute test for NetCDF code
1585    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1586      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1587    o added useSingleCPUIO flag to monitor.F and mon_out.F
1588    o added temporary hack for sea-ice dynamics on the cube:
1589      metric terms are ignored and it is assumed that
1590      there is no sea-ice on cube faces 1, 2, 4, and 5.
1591    
1592    checkpoint52f_post
1593    o added exch2 cube routines to pkg/exch2
1594    o modified hs94.cs-32x32x5 to use it
1595    o added new grid files to hs94.cs-32x32x5
1596    checkpoint52f_pre
1597    
1598    checkpoint52e_post
1599    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1600      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1601    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1602      to work with implicit vertical advection and AB ;
1603    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1604    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1605     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1606    checkpoint52e_pre
1607    
1608    o fix bug in impldiff when Nr=1 or Nr=2.
1609    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1610    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1611    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1612      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1613    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1614    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1615    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1616    
1617    checkpoint52d_post
1618    o re-tiled many expts to allow comparison in multi-processor mode
1619      - updated output accordingly
1620      - changed hs94.128x64x5 to use intial T from file rather than use the
1621        random number generator
1622    o add infrastructure in model routines for fizhi and gridalt packages
1623    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1624    o changes to permit hi-res, cubed-sphere, configuration
1625      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1626      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1627      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1628        of surface winds for the cube
1629      (A verification experiment, based on global_ocean.cs32x15, but with
1630       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1631       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1632       complete with example surface forcing files and matlab scripts to look
1633       at the output and compare it with that of global_ocean.cs32x15.)
1634    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1635       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1636       to conform to the common rule.
1637    o check-in the first version of the coupler + interfaces for multi-components
1638       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1639       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1640       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1641       - ocean and atmos. share the same horizontal grid (no interpolation).
1642       - exchanges between component and coupler is done in forward_step
1643    o new verification experiment, cpl_aim+ocn:
1644       coupled ocean - AIM atmosphere on cs32 grid.
1645    
1646    checkpoint52d_pre
1647    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1648    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1649    
1650    checkpoint52c_post
1651    o Fixing OPTIONS files for use of exf:
1652      - ALLOW_ECCO not needed
1653      - ECCO_CPPOPTIONS.h should not be included from
1654        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1655        as has been the case in the past
1656      - All cal/exf related options are currently set in
1657        single header file. Should remain so until we
1658        agree on a consistent new policy.
1659    o Removed all CPP options for cal package.
1660      cal has no more CPP options.
1661    o modified STOREs in GAD_ADVECTION
1662    o corrected key comp. for passkey
1663    
1664    checkpoint52b_post
1665    o new version: "thsice" of thermodynamic sea-ice pkg:
1666     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1667     - modify fluxes but do not change theta directly;
1668     - light cleaning of bulk_force pkg (still needed with thsice).
1669     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1670       + output_thsice.txt to test thsice & bulk_force pkgs.
1671    o put back grid & coriolis monitor output.
1672    checkpoint52b_pre
1673    
1674    o call "do_the_model_io" at the beginning (=> dump initial state)
1675    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1676    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1677      (need info on NUMBER_OF_PTRACERS)
1678    o missing PTRACERS headers in some routines
1679    o default tamc.h in pkg/autodiff supposed to crash
1680      to ensure proper customization
1681    
1682    checkpoint52a_post
1683    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1684      - moved surfaceTendencyTice from pkg/seaice to main code
1685      - subroutine FREEZE_SURFACE now limits only surface temperature
1686        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1687        => new output.txt for global_ocean.cs32x15 & global_with_exf
1688      - keep the old version of FREEZE for backward compatibility;
1689        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1690      - corresponding modifs for TAF directives
1691    o added surface flux output variables to TIMEAVE_STATVARS
1692    o time-averaged output for pkg/ptracers
1693    o fix problem with ECCO-related divided adjoint
1694      snapshot file was missing some ad-variables,
1695      but no warning issued by TAF
1696    
1697    checkpoint52a_pre
1698    o some bug fixes for #undef REAL4_IS_SLOW
1699    
1700    checkpoint52 = ecco_c52_e35
1701    o after testing adjoints of checkpoint51u_post
1702    
1703    checkpoint51u_post
1704    o this is the post-merge tag of the ecco-branch
1705      (needs another clean checkout and re-testing)
1706    o various natl_box_adjoint configs and results
1707      but no input fields
1708    o obcs adjoint not yet merged!
1709    o adding ECCO global 1x1 and 2x2 degree configs
1710    o updated/extended some store directives for seaice
1711    o pkg/ecco now containes ecco-specific part of cost function
1712    o top level routines the_main_loop, forward_step
1713      supersede those in model/src/
1714      previous input data.cost now in data.ecco
1715      (new namelist ecco_cost_nml)
1716    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1717    
1718    checkpoint51t_post
1719    o this is the pre-merge tag of the ecco-branch
1720    
1721    checkpoint51s_post
1722    o cleanup: removed various obsolete #define-s
1723    o pkg/grdchk
1724      - renamed 'ph-grd 3' to 'grad-res'
1725      - merged from ecco-branch
1726        (remaining bug fixes for obcs gradient checks)
1727      - additional high-precision output for testreport
1728        (grep for 'precision_grdchk_result')
1729    
1730    checkpoint51r_post
1731    o cleaned up or removed CPP_OPTIONS.h files
1732    o updated results for some of the tests to reflect the new
1733      optfiles (-ieee: -O0 instead of -O3)
1734    
1735    checkpoint51q_post
1736    o cd_code:
1737      - moved cd_scheme.F -> cd_code_scheme.F
1738      - separate read_checkpoint from cd_code_ini_vars.F
1739      - separated cd_code part from write_checkpoint
1740      - updated AD_SOURCE, generated .flow
1741      - added CD_CODE_VARS.h to the_main_loop
1742      - Moving cd_code specific store dir.s to pkg/cd_code
1743    o ctrl package totally restructured
1744      - pack/unpack now optional and decoupled from
1745        xx_/adxx_ I/O
1746      - ctrl_pack/unpack cleaned
1747        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1748      - confined inclusion of AD_CONFIG.h to where necessary.
1749    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1750    
1751    checkpoint51p_post
1752    o create initial cd_code package
1753      - WARNING: the initialization of fields within packages
1754        is broken because INI_FIELDS (where READ_CHECKPOINT is
1755        called) is called *before* PACKAGES_INIT_VARIABLES.
1756        This seems to be backwards since
1757        1) its important to initially zero the entire field including
1758           the "halo" region
1759        2) zeroing needs to be done *before* reading pickup info
1760           and the pickup call might or might not happen in any
1761           particular run
1762      - this needs an overhaul for R2
1763    o cleanup verification/*/code/GMREDI_OPTIONS.h
1764    o cleanup testreport
1765    
1766    checkpoint51o_post
1767    o bringing AD-related verif's up to date with genmake2
1768      - carbon/
1769      - global_ocean.90x40x15/
1770      - hs.94.1x64x5/
1771      - (front_relax/ )
1772    o (more) consistent directory structure for AD-related verif.'s
1773    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1774    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1775    o bug fix in find_alpha.F for MDJWF:
1776      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1777        change rho -> rho-rhoConst
1778      - replace call find_rho to find_rhonum
1779    o initialisation of rFlx extended to full array (required by TAF)
1780      and shifted to thermodynamics
1781    o removed PTRACERS.h in ptracers routine
1782    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1783    o Correcting initialisations for fVerU, fVerV.
1784    o helping TAF to recognize dependency on kUp for
1785      fVerU, fVerV
1786    o Replacing delZ by delR in pkg/ctrl/
1787    checkpoint51o_pre
1788    
1789    o undid all of cp51 pending some cleanups and discussion
1790    o added the [#include "AD_CONFIG.h"] statement to all files that need
1791       it for adjoint/tl #defines
1792     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1793     o removed tools/genmake since it no longer works
1794    
1795    checkpoint51n_post
1796    o modifications to make FREEZE flux visible to pkg/kpp
1797      - moved surfaceTendencyTice from pkg/seaice to main code
1798      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1799      - subroutine FREEZE now limits only surface temperature
1800        (this means new output.txt for global_ocean.90x40x15,
1801         global_ocean.cs32x15, and global_with_exf)
1802    o added surface flux output variables to TIMEAVE_STATVARS
1803    
1804    checkpoint51n_pre
1805    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1806    o added [#include "AD_CONFIG.h"] to all files that use the following
1807      defines:
1808      - ALLOW_ADJOINT_RUN
1809      - ALLOW_TANGENTLINEAR_RUN
1810      - ALLOW_ECCO_OPTIMIZATION
1811    
1812    checkpoint51m_post
1813    o incorporating changes to get TAMC/TAF working in genmake2
1814      - added new TAMC/TAF targets to the Makefile
1815      - various cleanups related to package handling
1816      - these changes should have no impact on the forward model
1817    
1818    checkpoint51l_post
1819    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1820     - faster algorithm for cal_addtime.F
1821     - higher precision arithmetic, where needed
1822     - pkg/exf *startdate variables changed from calendar date to
1823       model integration time
1824    
1825    checkpoint51l_pre
1826    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1827    o enable to apply restoring on S & T only in a latitude band.
1828    o update output (external_forcing_surf modif. change truncation errors)
1829       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1830    
1831    checkpoint51k_post
1832    o change default to: useNHMTerms=.FALSE.
1833     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1834       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1835     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1836        exp1, ideal_2D_oce
1837     - change data file of oceanic exp (leave the results unchanged for now)
1838       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1839    o set gravitySign automatically according to the vertical coordinate used
1840      (and change sign: back to "logical" value: +1 when R increases downward)
1841    o added an include barrier to the default CPP_OPTIONS.h and
1842      removed the #include "PACKAGES_CONFIG.h" from it
1843    o fix a bug in mom_fluxform (from chk51j_post)
1844    
1845    checkpoint51j_post
1846    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1847    o adjusted some flow directives (dynamics, thermodynamics)
1848    o added cubed-sphere case to test cost function
1849    o heckpoint_lev?_directives.h now include
1850      pkg-specific directives, whenever those are enabled.
1851    o Moving pkg-specific flow directives to corresponding pkg
1852      Moving pkg-specific differentiation list to corresponding pkg
1853      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1854      ---> conventions are
1855           - pkg_ad.flow
1856           - pkg_ad_diff.list
1857           - pkg_ad_check_lev?_dir.h
1858    
1859    checkpoint51i_post
1860    o merge of the branch-genmake2
1861      - knowingly breaks the older genmake
1862      - automatic generation of all ALLOW_${PKG_NAME} defines
1863      - new testreport supersedes older testscript
1864    o large number of package inclusion and header cleanups
1865    checkpoint51i_pre
1866    
1867    o new output for adjoin of global ocean vector invariant
1868    o fix for checkpoint of thermodynamic seaice and bulk_force
1869    o Steph gchem various cleanups
1870    
1871    checkpoint 51h_pre
1872    o fixed some single quotes
1873    o modify gchem pkg to be more versatile
1874    o modifications to clean up dic pkg
1875    o add pkg/cfc
1876    
1877    checkpoint51g_post
1878    o provide links for ARPACK and ADM*TLM
1879    o start removing verification/vero/
1880    o update AD-related stuff
1881      (in particular some IF-statements in model/src/ routines)
1882    o adding to verification/global_ocean.90x40x15/ adjoint of
1883      vector invariant setup
1884    
1885    checkpoint51f_post
1886    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1887    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1888      of tracer Green's fucntions for ocean inversion project.
1889    
1890    checkpoint51f_pre
1891    o Added on-the-fly spatial interpolation capability
1892        "USE_EXF_INTERPOLATION" to pkg/exf.
1893      - This is a temporary Cartesian-grid hack until
1894        the super-duper ESMF coupler becomes available.
1895      - See verification/global_with_exf/README for usage example.
1896      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1897        flags and modified pkg/seaice accordingly.
1898    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1899        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1900        non-local transport term.
1901    
1902    checkpoint51e_post
1903    o pkg/mom_vecinv:
1904      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1905      - add time-ave diagnostic of vorticity advection.
1906    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1907    o atmospheric geopotential: - include water vapor effect;
1908                                - use p^kappa in p* scaling.
1909    o land pkg: read initial state from files.
1910    o AIM : add stratospheric drag in the upper level
1911    
1912    checkpoint51d_post
1913    o change function ILNBLNK (=> last non-blank char.) to return zero
1914      (instead of the string length) when the string. char is empty
1915    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1916    o modif's to restore TAMC compatibility
1917      - avoid "_d" constructs in PARAMETER declarations
1918      - avoid interrupting lines by comment lines
1919    o Use cluster local disks for purely local I/O
1920      vs. globally visible disks needed for ctrl stuff
1921      (merged from ecco-branch)
1922      - new active_file_loc... and mdsio_..._loc routines
1923      - affected packages: autodiff, ctrl, grdchk, mdsio
1924    
1925    checkpoint51c_post
1926    o introducing integer flag debugLevel
1927      - debLevZero: suppress all output
1928      - debLevA: standard
1929      - debLevB: equivalent to current debugMode=.TRUE.
1930    o introducing pathname variable mdsioLocalDir for mdsio
1931      that can be specified at runtime
1932      (relevant for cluster I/O to local disk)
1933    `
1934    >>>checkpoint51b_post
1935    adjoint of ptracers
1936    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1937    o extended state in checkpoint_lev?, etc.
1938    o alternative ctrl/cost with tr1 or ptracer
1939    o new comlev1_bibj_ptracers
1940    o new ptracers.flow
1941    o made ptracers_forcing same as external_forcing_s
1942    o added verification for adjoint with ptracers
1943      - adm. grdchk fail so far
1944      - tlm. grdchk OK
1945      - checked tapelev/comlev recomputations: OK
1946    <<<checkpoint51b_pre
1947    
1948    checkpoint51a_post
1949    o added code for biogeochemistry package
1950      - new pkgs: dic, gchem
1951      - new subroutine in ptracers
1952    o modify code for biogeo packages
1953      - in model/src and pkg/ptracers
1954    
1955    checkpoint51
1956    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1957      - autodiff, ctrl, exf, grdchk, seaice
1958      kept separate packages
1959      - cost, ecco, obcs
1960    o updating verification/internal_wave, verification/lab_sea
1961      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1962    
1963    checkpoint50i_post
1964    o Preparing next differentiable checkpoint and sync
1965      of MAIN vs. ecco-branch
1966      - 1st step: this one is differentiable
1967      - 2nd step: next(! not this) checkpoint will have updated packages
1968                  from ecco-branch)
1969    
1970    checkpoint50h_post
1971  o new package "land": provide surface BC for AIM.  o new package "land": provide surface BC for AIM.
1972  o pkg/ptracers: apply exchange to all tracers after reading a pickup.  o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1973  o AIM: use true log-P extrapolation for near surface temp (= as in  o AIM: use true log-P extrapolation for near surface temp (= as in
1974      F.Molteni paper) ; update aim.5l_cs output.      F.Molteni paper) ; update aim.5l_cs output.
1975  o New variable in PARM03 for more flexible pickups  o New variable in PARM03 for more flexible pickups
1976    o somewhat cleaned package initialisation sequence for
1977      ctrl/ cost/ ecco/ in packages_... routines
1978    
1979  checkpoint50g_post  checkpoint50g_post
1980  o merged with release1_p17 (pkg/seaice and verification/lab_sea)  o merged with release1_p17 (pkg/seaice and verification/lab_sea)

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