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revision 1.198 by edhill, Tue Oct 28 22:57:59 2003 UTC revision 1.717 by edhill, Tue Aug 15 04:30:53 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o added the regrid package
8    o shelfice:
9     - add a simple boundary layer scheme to reduce noise
10     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
11    checkpoint58n_post
12    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
13       local variable (not in common block).
14    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
15      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
16      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
17        to work with SingleCpuIO.
18    o add "_d 0" to real constant of pkg/cfc subroutines ;
19       update exp. cfc_exemple & tutorial_cfc_offline output files.
20    o multi-threading and IO:
21      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
22        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
23      - barrier before and after reading.
24      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
25      - avoid using MDS_WRITELOCAL for LAND pkg output.
26      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
27        common-block variables ; Allows multi-threading with master-thread IO.
28    o change default MAX_NO_THREADS from 32 to 4 ;
29      and stop cleanly when MAX_NO_THREADS is too small.
30    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
31    
32    checkpoint58m_post
33    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
34       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
35    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
36       keep global_ocean.90x40x15 (for AD testing) with former secondary test
37       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
38    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
39        add MITgcm_tutorials (= code + all the tutorials)
40    o ecco, option to compute cost for total ssh (mean+anom)
41    o consistent with addition of ptracer and ssh in pkg/profiles
42    o profiles: adding ptracer and ssh
43    o testreport: change multi-test output-file name
44      (from output.txt.{name} to output.{name}.txt)
45    o profiles: now ok for mutli-tiles case
46    o seaice: add 4 parameters for different advection schemes for area,
47      (effective) seaice thickness, enthalphy, and snow height. Their default
48      is the standard parameter SEAICEadvScheme
49    o calc_gw:
50     - add cosFacU in zonal viscous flux (harmonic.visc.).
51     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
52       of tutorial_plume_on_slope.
53    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
54    o calc_gw: true flux-form, account for horizontal grid spacing.
55      update rotating_tank results, but not plume_on_slope (affected at
56      truncation level, 11 digits).
57    
58    checkpoint58l_post
59    o calc_gw:
60     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
61     - remove side-drag for now (need to fix it); update plume_on_slope results.
62     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
63    o commit code to make SST/SSS weights spatially variable
64      (based on either variable in-situ or variable initial T/S weights)
65    o pkg/ecco:
66      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
67        now based on horizontally varying weights wthetaLev, wsaltLev
68      * cost_averagesflags now returns year indices in addition to day, month
69      * sflux balance is performed on annual basis
70        (sflxumm, sfluxmm2, bal_sfluxmm)
71      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
72        including separate counting and multipliers
73    o pkg/rbcs
74      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
75    
76    checkpoint58k_post
77    o testreport:
78     - always build in dir. "build" (if not there, mkdir build instead of building
79       & running in input)
80     - run in dir run (if it exists), in build otherwise.
81     - call prepare_run (if input/prepare_run exists)
82     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
83    o pkg/exf modifications to interpolation and rotation routines for more
84       reasonable treatment of North Pole singularity: for tracers North Pole
85       value is set to northernmost zonal-mean value, for zonal velocity it is
86       set to zero, and for meridional velocity it is set to northernmost value.
87    o pkg/exf/exf_check_range.F
88     - add tile index to diagnostics and move stop statement to the very
89       end of the routine.
90    o pkg/diagnostics: (diagnostics_main_init.F)
91      define title of isomorphic variables according to the current config.
92    o pkg/thsice with pkg/seaice dynamics:
93    - fix domain of computation (interior only, required for exf) and do exchanges
94    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
95    o towards a standard way of dealing with multi-threading in MONITOR
96      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
97    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
98       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
99    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
100    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
101    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
102       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
103    o tracer advection:
104     - clean-up and simplify calc_common_factors.F
105     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
106       advection subroutine (but still not used within DST advection S/R)
107    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
108    
109    checkpoint58j_post
110    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
111      from file (collects calls previously in FORWARD_STEP)
112    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
113    o adjoint store dir. adjusted accordingly
114    o genmake2
115      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
116    
117    checkpoint58i_post
118    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
119      on wind stress (SEAICEstressFactor defaults to 1.)
120    o Total number of Timers is finite (<=40): comment out 2 non-essential one
121      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
122    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
123      on CS-grid: no longer loosing mass.
124    o exf & curvilinear-grid: no longer modify longitude xC & xG.
125    o pkg/ggl90: fix sloppy output and fix a bug
126    o pkg/seaice: added SEAICEuseEVPpickup parameter
127      - Set to false in order to start EVP solver with
128        non-EVP pickup files when using SEAICEuseEVP
129      - fix sign error in diffusion in seaice_calc_rhs
130    
131    checkpoint58h_post
132    * Modifications for bottom topography control
133      o replace hFacC by _hFacC at various places
134      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
135      o add non-self-adjoint cg2d_nsa
136      o update autodiff support routines
137      o re-initialise hfac after ctrl_depth_ini
138      o works for 5x5 box, doesnt work for global_ocean.90x40x15
139    * Adding verification for 5x5 box (4-layer) bottom topography control
140    
141    checkpoint58g_post
142    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
143       used for mean seasonal cycle, mean diurnal cycle); add an example
144       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
145    o pkg/ggl90:
146      - add parameter (minimum surface kinetic energy)
147      - fix bug (avoiding division by zero)
148    o couple pkg/thsice to pkg/seaice:
149      - modify advection in seaice to accomodate new scalar fields to be advected
150      - only muliDimAdection scheme work with seaice/thsice
151      - mapping of thsice-variables to seaice-variables, back and forth
152      - does not break the verification experiments, but does not give the
153        desired results either
154    o pkg/seaice
155      - make (default) second order advection a bit less confusing?
156    
157    checkpoint58f_post
158    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
159      to pkg/seaice):
160      - new routines thsice_map_exf and thsice_get_exf provide the interface
161      - add an additional formal parameter to thsice_solve4temp
162    o pkg/exf:
163      - add new fields wspeed, snowprecip (to be able to couple to thsice)
164      - correct Stefan-Boltzmann constant
165      - new parameter for longwave surface emittance
166      - separate some stuff from exf_bulkformulae into new routines  
167        exf_radiation, exf_wind
168      - add new parameters and constants: longwave emissivity for ocean, ice
169        and snow, evaporation parameters over ice
170      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
171        either wind from stress or stress from wind
172    o pkg/thSIce:
173    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
174    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
175       and THSICE_CALC_THICKN
176    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
177    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
178      to make debugging easier.
179    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
180    o pkg/bulk_force:
181      - clean-up comments and parameters ;
182      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
183    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
184      generate new output for test-experiment: aim.5l_cs.thSI
185    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
186      testreport accordingly
187    
188    checkpoint58e_post
189    o SEAICE_CGRID adjoint done
190    o R_STAR adjoint implemented.
191      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
192      * need to sort out init. of h0facc, etc.
193    o Make pkg/profile fully independent of ecco,cost, etc. stuff
194      to be able to use it in pure forward.
195    
196    checkpoint58d_post
197    o upgrade simple test-experiment to tutorial example:
198     step.1: duplicate the experiment and (step.2) will remove the old copy.
199      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
200      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
201      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
202      tutorial_global_oce_biogeo    <- copy of dic_example
203      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
204      tutorial_plume_on_slope       <- copy of plume_on_slope
205      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
206      tutorial_global_oce_optim     <- empty for now (David ?)
207      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
208     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
209    o correct a sign problem in cost_scat.F
210    o obcs and ptracers: fix boundary conditions for advections schemes
211      with larger stencil
212    o thsice adjoint: start
213    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
214      completeness
215    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
216      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
217    o ptracers adjoint:
218      * avoid extensive recomputatations
219      * fix missing re-init. of gptr (missed by TAF)
220    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
221      me to turn off the excessive output to STDOUT that this package produces
222    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
223      and add those terms in Vector-Invariant formulation.
224    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
225      if the control period (xx_hfluxperiod etc) is 0
226    o in profiles pkg, clean routines and fix details
227    o in ecco pkg, reading ssh data:
228      fix problem in case the model does not start at iter0=0
229    o fix mnc-pickup/restart for ptracers
230    o new package prifiles:
231      code to compute profile-based cost by Gael Forget
232      (modifs in ecco, ctrl, autodiff)
233    o Benign bug fix in initialization (spotted by M. Mazloff) of
234      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
235    
236    checkpoint58c_post
237    o adjoint: finish NLFS adjoint and provide reference output in
238      verification/global_ocean.90x40x15/results_ad_nlfs
239    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
240      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
241      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
242      with SEAICE_CGRID defined.
243    o move calendarDumps from "data" to "data.cal" and clean-up the code
244      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
245    o add useEXF & useCAL flags (for now, set in hard-coded way)
246    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
247      (were missing in NH mode, and wrong in quasihydrostatic mode).
248      waiting for Chris updated version of calc_gw to add those CALLs.
249    o fix bug in quasihydrostatic S/R ;
250      add a test for this option: global_ocean.90x40x15.qshyd
251    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
252      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
253    o add on/off flag useOffLine for package OFFLINE
254    o seaice:
255      - modify advection so that it works also on the C-grid
256      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
257        problem in multi-tile runs with C-grid
258      - add flags for clipping ice velocities and/or masking solver forcing
259      - fix drag (ocean on ice) formulation and a bug that caused noise in the
260        C-grid solver
261      - added a few comments to seaice_diffusion.F
262      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
263        are now exclusive)
264      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
265        required re-ordering the code a little:
266       + make DAIRN global variable (defined in SEAICE)
267       + move computation of the viscosities eta and zeta into a new separate
268         routine (because I need to recompute them in seaice_ocean_stress.F)
269    
270    checkpoint58b_post
271    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
272      update output.txt of exp. aim.5l_cs.thSI
273    o various mnc cleanups and improvements:
274      + shrink lookup tables by factor of ~4
275      + better error reporting when running out of lookup space
276      + able to handle longer path/file names (up to 500 chars)
277    o adjoint:
278      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
279      - TBD: "hidden" mom_vecinv recomp. in dynamics
280    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
281     (allow to differentiate between forcing components using new integer flags:
282      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
283     and add new flag to put Dissipation tendency out of Adams-Bashforth.
284    o ecco
285      - enable trend removal from SSH anomaly obs.
286    o adjoint
287      - a fix for PmEpR when #undef EXACT_CONSERV
288      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
289      - try to fix "hidden" recomp. in forward_step for NLFS
290        (NLFS seems broken sometimes after I checked it in)
291    o seaice:
292     - add c-grid version of the dynamic solver:
293       + three new routines that are the c-grid substitute lsr, dynsolver
294         and ostres
295       + put a few fields that were local to dynsolver into global common
296         blocks, so that I can move the computation of stresses etc into
297         seaice_lsr (saves coding but may break the adjoint).
298     - replace more hardwired parameters by runtime parameters
299     - add ice masks that mask the rhs of the implicit solvers where there
300       is no ice (commented out in seaice_dynsolver, because i am not sure
301       if this works properly), eventually this should replace the clipping
302       of ice velocities in seaice_dynsolver to +/-40cm/s.
303    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
304      include it only where its needed
305    o move balancing of fluxes before the call of external_forcing_surf
306    o seaice:
307      - correct units of turning angles (now they are really in degrees)
308      - move computation of GWATX/Y out of main routine into dynsolver
309      - initialize GWATX/Y in seaice_init
310    o Apply mask on Fresh-Water flux (needed for SSH forcing).
311      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
312    o seaice: add runtime flags for turning angles (default to zero)
313    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
314      and trend from exf forcing and ctrl control adjustments
315    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
316      (since checkpoint57x_post)
317    o change the default rotation period to 86164.s = the Earth rotation
318    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
319      and based on a reference stratification. Tested within hs94.cs-32x32x5.
320    o seaice advection: add code for choosing between the default (2nd order
321      central differences) and multiDim advection schemes provided by
322      pkg/generic_advdiff
323    o seaice:
324      - removed all references to SEAICE_GRID.h fields from
325        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
326        (cubed-sphere configuration will change a little)
327      - grid computations in seaice_init are obsolete now.
328      - cleaned up code a little so that is easier to read (hopefully).
329      - added new (better?) discretizations of default advection and diffusion
330        (turn on with SEAICEuseFluxForm)
331      - replace 1 in 3d global fields by kSurface in growth.F
332      
333    checkpoint58a_post
334    o seaice:
335      - bug fix in advect.F
336    o shelfice:
337      - separate shelfice load anomaly from pload (breaks with time
338        dependent forcing), => introduce constant field shelficeLoadAnomaly.
339        Its default is 0., but it may be computed more cleverly from (unknown)
340        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
341        done offline. A good approximation of the pressure load anomaly is
342        necessary to avoid large initial adjustment processes underneath
343        deep-reaching shelfice.
344      - small fix in ISOMIP shelfice_thermodynamics
345      - add more sophisticated thermodynamics of Hellmer (1989), this is
346        now the default
347      - give a few constants more intuitive names
348    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
349      if bulk formulae are used in long integration (especially EmPmR). Turn
350      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
351      if balancePrintMean, the imbalance that is substracted is printed to
352      STDOUT.
353    o fix bug (typo) in obcs_apply_eta.F
354    o add a new package shelfice which enables us to model the circulation
355      underneath shelf-ice with draughts of hundreds of meters.
356     - works
357     - to do: + include improved thermodynamics
358              + check whether kSurfC (from model/inc/SURFACE.h) can be used
359                instead of new field kTopC
360              + can we use topoFile, Ro_surf and existing code in ini_depth.F
361                instead of new field R_shelfIce and new code in ini_depth.F
362                and ini_mask_etc.F?
363              + adjust vertical mixing schemes?
364    o seaice pkg:
365     - add a cpp-flag to include a simple formula for a salinity dependent
366       freezing point of sea water at the surface
367     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
368       meridional stresses are now different (and hopefully correct)
369    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
370       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
371       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
372    o pkg/diagnostics: add options and parameters for regional-statistics
373       diagnostics ; define regions by reading a region-mask from a file
374       (might add other options later)
375    o pkg/bulk_force:
376     - add option and parameters to use AIM surface-flux formulae.
377     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
378       others forcing fields (defined in PARM05, parameter file "data") are loaded
379       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
380     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
381     - use the right EXCH call for uwind,vwind (to work on CS-grid).
382     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
383       and parameters (note: calcWindStress replaces .NOT.readwindstress).
384     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
385    
386    checkpoint58
387    o add "--embed-source" option to genmake2 which, when the supporting
388      tools can be compiled (as determined by genmake2) will turn on the
389      embed_files package which then embeds the entire MITgcm source code
390      (*.[fFhc] + Makefile) used for the build within the executable
391      - requested by CNH but off by default
392      - adds a paltry <9MB to the mitgcmuv executable in most cases
393      - only writes the output when useEMBEDSRC in eedata is true
394    o clean up 3-dim. relaxation codes:
395      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
396      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
397      * Thanks to Tom Haine for testing!
398    
399    checkpoint57z_post
400    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
401      affects output (@ truncation level) of exp. plume_on_slope ; updated.
402    o fix the pickup behavior for obcs in combination with ptracers
403    o fix a bug in ptracers_external_fields_load
404    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
405      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
406    o transfered surface NH pressure to eta field (if exactConserv).
407    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
408         and update lab_sea output.txt file.
409    o completing 3-dim. relaxation code: additional term
410         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
411      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
412      * At compile time, in "EXF_OPTIONS.h" set
413          #define  ALLOW_CLIMTEMP_RELAXATION
414          #define  ALLOW_CLIMSALT_RELAXATION
415      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
416          tauThetaClimRelax3Dim = 15552000.0,
417          tauSaltClimRelax3Dim  = 15552000.0,
418      * 3 cases:
419          1) Use a constant-in-time 3-dim. field
420          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
421          3) Real-time relax. to time-evolving prescribed field
422    o Adding Laplacian-type smoothness constraint on
423      initial and boundary (forcing) controls (ic, bc)
424      * enable at compile-time via
425        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
426      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
427      * Absolute scale somewhat unclear so far
428      * no area weighting was included since no other cost term does so far
429    
430    checkpoint57y_post
431    First step for a NLFS adjoint
432    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
433    o new init. routines for calc_r_star, calc_surf_dr
434    o still need to deal with ini_masks_etc
435    o testreport seemed happy
436    checkpoint57y_pre
437    
438    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
439    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
440    o add new offset feature to offline pkg (plus minor cleanup)
441    o cfc fixes for final year of integration
442    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
443      be in GCHEM_OPTIONS).
444    
445    checkpoint57x_post
446    o fix testreport Pb in multiple test experiment.
447    o cleanup our namelist syntax in verification:
448      - make it more F95 standards compliant (some work still needed)
449      - allows the vast majority of our tests to work with gfortran
450    o Non-Hydrostatic:
451     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
452     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
453    o Allow to apply AB on T,S rather than on AB(gT,gS):
454     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
455     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
456       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
457     - need a "clever" read_pickup to restart from the other AB formulation
458    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
459    o remove some unused variables (reduces number of compiler warnings)
460    o adjoint
461      * Disable useVariableViscosity for adjoint for time being
462        (there are a number of extensive recomputations)
463      * Initialize certain variables needed for adjoint
464    
465    checkpoint57w_post
466    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
467                 fix the singleCpuIO RS version of MDSWRITEFIELD
468       and add a WARNING if using globalFiles=T with multi-processors.
469    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
470      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
471    o tracer advection scheme:
472      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
473       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
474       was not very convenient).
475      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
476       (further tests needed for the implicit DST & Flux-Limiter schemes).
477    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
478      and sRef for convenience, handy, when you want to initialize
479      ptracers in a large domain with a constant non-zero value. Also,
480      untangle ptracers_init.F a little.
481    
482    checkpoint57v_post
483    o change dome exp. to use variable viscosity in side-drag terms.
484    o remove all the files from the cfc_offline test since they are now
485      incorporated into tutorial_cfc_offline which has been producing
486      identical results for a few days of testing
487    o add new parameter: sideDragFactor to enable half-slip-side BC
488      and change side-drag S/R to use viscosity from mom_calc_visc
489      (can switch back by setting sideDragFactor=0.); affects results at
490      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
491       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
492    o vorticity & strain are now computed without masking, to account for
493      no-slip-side BC in variable viscosity calculation ; mask is applied
494      anyway later on, before computing advection/coriolis terms.
495    o modify exp4 to test new obcs support for reading from external files
496      and for passive tracers
497    o fix behavior of ptracers_monitor when monitor output is written to a
498      netcdf-file; still not independent of monitor.F (writes in the same
499      file).
500    o change default value of tRef (put a uniform, meaningful value for ocean
501      & atmos) and initialize sRef (was missing, as Martin mentioned).
502    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
503      to be proportional to enstrophy dissipation length.  Thus,
504       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
505      This is now consistent with Smagorinsky and with the manual.
506    
507    checkpoint57u_post
508    o OBCS and PTRACERS: add open boundary support for passive tracers
509      - either use homogenous (pseudo) v.Neumann conditions or prescribe
510        OB-values from file; this is not different from the way theta and salinity
511        are treated
512      - however, Orlanski-radiation conditions are not supported, and the model
513        will stop if you use pTracers and Orlanski at the same time.
514      - beefed up the rountine obcs_external_fields_load: now only those open
515        boundary values are overwritten with values from files for which there
516        are really files, otherwise the OB-fields remain untouched. This makes
517        it possible to use different OBs at different ends of the domain (as
518        with EXF)
519    o reduce number of exch calls in shap_filt (s2).
520    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
521      truncation level) 4/5 MLAdjust test results (11&12 digits match).
522    
523    checkpoint57t_post
524    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
525    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
526      same truncation, independent of the face number: affects affects several
527      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
528    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
529      note that biharmonic viscosity + no-slip was not tested in any experiment.
530    o fix bug in non-linear free-surf side-drag ; generate new output for
531      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
532    o make mnc honor the writeBinaryPrec flag for most kinds of output
533    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
534    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
535      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
536    o add brackets in multi-terms sum to get same truncation, independent of
537      the face number (manage to get exactly same value of gU,gV at the cs-edge)
538      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
539    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
540      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
541      a maximum grid-scale Reynolds number.  Also, changes all length calculations
542      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
543      Suggested values of viscosity parameters found in mom_calc_visc.
544      Many new viscosity diagnostics available.
545    
546    checkpoint57s_post
547    o Add clearing-house for viscosity calculations, mom_calc_visc and
548      correct numerous bugs in LeithD and Smagorinsky discretizations.  
549      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
550      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
551      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
552      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
553      The Strain-Tension form is now called with useStrainTensonVisc=.true.
554      ViscAhStrain and viscAhTension are now retired.
555    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
556    o In response to JMC's bug report, genmake2 now ignores any soft-links
557      that it finds in the *current* directory when searching for files.
558      Soft-links found in any other source directories will still work as
559      they did before.
560    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
561      a C routine to unlimit the stack size
562    o mnc-ify pkg/aim snapshot vars
563    o mnc-ify pkg/land as requested by Daniel
564    o various changes to mnc including:
565      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
566      - output can now be grouped so that all files within a group
567          change the ITER portion of their names in lock-step together
568      - can now read ("global") PER-FACE (in addition to PER-TILE) files
569          and works with both EXCH1 and EXCH2 (but needs more testing)
570      - writing works for all verification test cases w/ g77 on Linux
571    
572    checkpoint57r_post
573    o make MNC variable initialization happen earlier
574    o add diagnostics for (almost) each term of the momentum Eq.
575    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
576    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
577    o remove MINIMAL_TAVE_OUTPUT option ;
578      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
579    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
580      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
581    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
582    o add time-dependent SST, SSS control
583    o cost terms in ecco/ modularized (new cost_generic.F)
584    o cost_averages routines are modularized (new cost_averagesgeneric.F)
585    o new infrastructure for seaice model vs. obs misfits in seaice/
586      * driver from the_main_loop.F is seaice_cost_driver.F
587      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
588      * gradient check in Exp. 6a of natl_box_adjoint/
589    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
590      (see README file)
591    
592    checkpoint57q_post
593    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
594    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
595      - bug was reported by Jean-Michel and Ian Fenty
596    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
597      update exp. cpl_aim+ocn output.
598    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
599      Needed for high-res. runs with large global files
600      to be able to limit tapelev size
601    o Changed some tests for adjoint:
602      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
603      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
604      * global_ocean.90x40x15/ back to default 3-level checkpointing
605    o Modifications to enable scripted COMMON to MODULE conversion
606      * verification/OpenAD/code/ has necessary scripts and description;
607      * converts, compiles and runs successfully;
608    
609    checkpoint57p_post
610    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
611    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
612      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
613    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
614    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
615      (was already the case for dissipation with mom_vecinv,
616       and also the case for grad.PhiHyd when staggered-timeStep)
617      This will allow to put dissipation out-off the AB time-stepping.
618     Unfortunately, affects truncation error. Update output of exp. that "fails"
619      (cg2d matching number) and leave the others for later: front_relax(10),
620      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
621      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
622    
623    checkpoint57o_post
624    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
625      (2) its ready to be documented during the 20050801 DocFest
626    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
627      for ideal_2D_oce and lab_sea on linux_ia32_g77
628    o set to #undef CTRL_SET_OLD_MAXCVARS_30
629      in global1x1_tot/code_seaice_adj to access indices 32, 33
630      (worth another tag)
631    
632    checkpoint57n_post
633    o adding precip control xx_precip 32
634    o adding swflux control xx_swflux 33
635    o Replacing 10 forcing penalty cost routines by 1 generic.
636    o Implementing partitioning in time-mean and variable adjustment
637      for atmos. state.
638    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
639    o in natl_box_adjoint:
640      * updated exp 1 to 10
641        (but does not have time-mean vs. variable split results yet)
642    o updated global1x1/*_seaice_adj/
643      to incorporate latest changes
644    o enable useSingleCpuIO for mdsio vector routines
645      (applies in particular to tapelev I/O)
646    o removed inefficient K-loop in all active_file*control*.F
647    
648    checkpoint57m_post
649    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
650      and advect_cs (use EXCH-2 and standard cs-32 grid files).
651    o pkg/exch2: filling of face-corner halo regions is optional
652      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
653    
654    checkpoint57l_post
655     tag before updating tutorials (pre-release-2)
656    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
657       for output and interpolation of input fields onto model grid)
658    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
659       Affects results of exp. rotating_tank ; update output.txt.
660    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
661          and taking the square quantity and/or using a fraction-weight field.
662    o fix aim_diagnostics_init.F mate numbers.
663    o add mnc output capability to diagnostics/diagstat and update
664      our cvsignore files for the ACSII output generated
665    
666    checkpoint57k_post
667    o lab_sea now uses diagnostics package and provides a suite of
668      new EXF diagnostics output.
669    
670    checkpoint57j_post
671    o exf
672      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
673        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
674        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
675      * extended diagnostics output
676        - now includes all EXF variables
677        - hs, hl moved to common block
678        - separate S/R for diagnostics, called after ctrl vector is added
679        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
680        - EXFqnet contains true Qnet (i.e. includes qsw)
681      * updated verif. lab_sea, global_with_exf
682      * Rearranging hflux (exf_mapfields -> exf_getforcing)
683        to ensure that diagnostics sees a true EXFqnet
684    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
685    o diagnostics pkg: change pointers so that 1 diagnostic can be used
686      several times with different frequencies.
687    o mnc-ify the thsice package as requested by Daniel Enderton
688      - the monitor--MNC output needs work
689      - many attributes need to be added (most are currently blank)
690    o mnc-ify theaim_v23 package as requested by Daniel Enderton
691      - many attributes need to be added (most are currently blank)
692    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
693    o add Sadourny like discretization to the 4th.O vorticity advection scheme
694    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
695      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
696         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
697    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
698     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
699    
700    checkpoint57i_post
701    o Diagnostics package was changed: diagnostic allocation is now deactivated
702      by setting an empty file name in the namelist (used to be by setting 0 frequency)
703    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
704      add 1rst Order upwind vertical Shear.
705    o add a quick fix for A/B checkpointing in OFFLINE mode
706    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
707      end-run around the C/Fortran linking horror in eesup/src/timers.F
708    o added pkg/runclock: allows user to terminate run based on wall clock
709    o added non-hydrostatic scaling parameter: nh_am2
710    o pkg/my82: futile attempt to make results compiler-independent by adding
711      some "_d 0", etc. no effect.
712    o for mnc output, fill the 'T' coordinate var with myTime and create a
713      separate 'iter' variable for iteration count
714    o pkg/diagnostics:
715      add new capability: output of Global/Regional & per-level statistics ;
716      tested against monitor output (including land & thSIce) on various exp.
717    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
718    
719    checkpoint57h_done
720      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
721      data.diagnostics, data.gchem, data.ptracers) is done.
722    
723    o pkg/diagnostics: prepare for Global/Regional statistics.
724      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
725    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
726      and rename it: DIFFERENT_MULTIPLE
727    
728    checkpoint57h_post
729    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
730    o pkg/diagnostics: change output frequency, now in seconds (instead
731      of Nb of iterations). This requires to change data.diagnostics.
732    checkpoint57h_pre
733    
734    o in mnc, let the user create the output dir if both mnc_outdir_date
735      and mnc_outdir_num are false
736    o add fflags() to pkg/diagnostics which allows one to specify, on a
737      per-file basis, the file precision [default behavior is unchanged]
738    o added diagnostics to pkg/kpp, including computation of mixed layer
739      depth based on a temperature/density criterion
740    o updated verification/natl_box to test the new pkg/kpp diagnostics
741    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
742    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
743    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
744      not mnc -- this mistake was found by JMC and is now corrected
745    
746    checkpoint57g_post
747    o add Adams-Bashforth 3rd Order time stepping:
748      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
749      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
750    checkpoint57g_pre
751    
752    o make lambda[Theta,Salt]ClimRelax spatially varying
753      (default remains spatially uniform constant based on tau)
754    o added new control variables
755      * init. uVel, vVel, etanN
756      * lambda[Theta,Salt]ClimRelax
757    o separate masks used for ctrl_pack/unpack 'from write_grid' output
758      (suggested by G. Forget)
759    
760    checkpoint57f_post
761    o add parameter "baseTime" = model base time = time at iteration zero
762      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
763      account for baseTime shift
764    o move Coriolis arrays from PARAMS.h to GRID.h
765    checkpoint57f_pre
766    
767    o mnc-ifying the seaice package
768    o introduced an alternative length scale calculation for use in the limiting
769      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
770    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
771    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
772      as well as grad(vort3).  Made it compatible with both approximate form
773      for the cubed sphere and full form of these gradients.  Added flag
774      useFullLeith to select between approximate and full form.  
775    o add "d0" in getcon.F to reduce differences between compilers/platforms
776      update output.txt of exp. fizhi-gridalt-hs
777    o change port_rand funtion to allow to set the seed.
778    o fix obscure MNC bug involving conversion between reals and integers
779      - it caused no problems with certain (eg. gcc, ifc) compilers but the
780        new version is now more standards-compliant
781    o adjoint-related modifications
782      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
783      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
784      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
785    
786    checkpoint57e_post
787    o Adding eddy stress controls a la Ferreira et al.
788    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
789    
790    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
791      update output.txt of exp. fizhi-gridalt-hs
792    o add more "Z" dimensions and associated coordinate vars to MNC
793    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
794    o parameter calendarDumps: when set, approximate months (30-31 days) and years
795      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
796      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
797      months and years.  Requires pkg/cal.
798    o diagnostics: add pickup functionality
799      - off by default for backwards compatibility
800      - current version only uses MDSIO -- MNC will be added
801    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
802    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
803    
804    checkpoint57d_post
805    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
806    o modify verification/ideal_2D_oce so that it tests the creation of mnc
807      output from the diagnostics package
808    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
809    o make genmake2 more portable by using ".$FS" instead of ".f" for more
810      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
811    o add coordinate variables to the MNC output from the diagnostics package
812    o change MNC-flags default value: true when useMNC=TRUE
813    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
814      the ability (off by default) to read the grid information using MNC
815    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
816    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
817    o do snap-shot diagnostics at the middle of the time-interval (instead of
818      at the end).
819    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
820      new test for AIM with thSIce + slab-ocean
821    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
822    o move state variable diagnostics to the beginning of the time step ;
823      (note: still needs some work specially for snap-shot diagnostics)
824      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
825    
826    checkpoint57c_post
827    o Change testing option (-ieee) to get closer agreement between g77 & ifort
828    o generate new output.txt files on faulks with g77 & the new -ieee option
829    checkpoint57c_pre
830    
831    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
832      update output.txt of exp. global_ocean.90x40x15
833    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
834      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
835    o add saltFlux(+File) forcing capability with periodicExternalForcing
836    o allow to use pkg diagnostics for GM-Redi & ThSIce output
837    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
838    o improvements for the MNC output from DIAGNOSTICS:
839      - correct handling of the unlimitied dimension
840      - all dims now have associated coordinate variables
841      - variables located at U, V, and Corner ("Z") points are now written
842        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
843        *all* data points are output
844    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
845    o added pkg/seaice/seaice_monitor.F
846    o mdsio_readfield.F can now read files visible only to master MPI process.
847    o pkg/seaice: some test code for ice-modified ocean stress
848    o exf_getffields interpolation defaults to bilinear for all scalar forcing
849      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
850      spurious negative numbers for precipitation and humidity.  Will cause
851      some small numerical differences for integrations using pkg/exf/exf_interp.F.
852    o pkg/ctrl/
853      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
854        May be enabled via doPackDiag
855      *  introduce z-scaling of
856         + gradient (doZscalePack) and
857         + control (doZscaleUnpack)
858    o pkg/mdsio/
859      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
860      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
861    
862    checkpoint57b_post
863    o simplify options in diagnostics_fill arguments (remove weird combinations)
864    o fix MNC coordinate variables so that they now contain per-face index
865      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
866      general, EXCH2 grids are only aligned to a "local" coordinate system
867    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
868    o Implement instantaneous output within pkg diagnostics:
869      setting a negative frequency in data.diagnostics produces
870     "snap-shot" output (as opposed to time-average if freq > 0)
871    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
872      NOTE: change ptracer diagnostics name: use 2 characters to work with
873            more than 9 tracers. Add also diagnostics of advect & diffus flux.
874    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
875      becomes the coordinate variable for the 'T' dimension
876    o add CF-style coordinate variables to MNC
877      - just a first cut:  numbers are meaningless on the cubesphere and
878        missing along the T axis but otherwise it works!
879    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
880    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
881    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
882      this is based directly on what the model compute, so that the content of
883      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
884    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
885    o clean up build options files for SunOS, in particular
886      - remove -traditional from xmakedepend
887      - change -xarch=v9 to -xarch=native for f77
888      - restore use of make (not gmake)
889      - add CC=gcc if using g77
890    o changes per discussion of AM, JMC, & EH3 today:
891      - move redundant "grid" variables out of "state" -- in preparation of
892        creating proper CF-style coordinate variables and in recognition
893        that any/all grid variables can be easily copied (eg. w/NCO) from
894        the grid files into any of the other NetCDF files
895      - *always* output grid variables with MDSIO (this will eventually be
896        changed)
897      - output MNC grid file if useMNC is true
898    o every instance of _END_MASTER() has been found and replaced with
899      _END_MASTER( myThid ) in order to satisfy certain picky Sun
900      preprocessors
901    o re-arrange diagnostics pkg initialisation:
902     - allow each package to extend the available diagnostics list
903     - add some checking and fix small problems (multi-threaded, ...)
904     - new S/R diagnostics_fill (replace fill_diagnostics):
905       look through the short list of active diag. (instead of the long list)
906       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
907    
908    checkpoint57a_post
909    o this set of changes restores TAMC compatibility
910      tested for global_ocean.90x40x15 adjoint on trough
911      (what a pain)
912    
913    checkpoint57a_pre
914    o some modifs in tools/build_options for sunos
915    o call ctrl_pack for ctrl at end for optimcycle=0
916    
917    checkpoint57
918    o add horizontal bi-harmonic viscosity for vertical velocity
919      - new parameter viscA4W (defaults to viscA4)
920      - affects only non-hydrostatic code
921      - to be done: no-slip lateral boundary conditions
922    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
923    o implement Implicit Vertical advection for pTracers
924    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
925      (implemented also for implicit vertical diffusion & advection)
926    o OBCS: extend application of tracer open boundary conditions
927      to a strip beyond the boundary of width Olx/Oly
928    o add call monitor to TAF set of required calls (flow directives)
929      and include in natl_box_adjoint
930    o untangle a few ifdefs related to cost, ctrl, autodiff
931      untangel a few ALLOW_ECCO_OPTIMIZATION
932    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
933      (theta2, salt2 in ecco_cost_weights)
934    
935    checkpoint56c_post
936    o OBCS as control variables
937      - update ctrl_ad_diff.list, obcs_ad_diff.list
938      - remove balance of obcs controls from default
939      - fix index bug nobcs in ctrl_init
940      - fix dummy fields filen in ctrl_pack
941      - add dummy weights for obcs
942    o lsopt: comment out fort.94 output
943    o optim:
944      - remove unnecessary header files
945      - adjusted namelists
946      - add xerbla.F to Makefile
947    o exf:
948      - multiple modifications of exf_check_range
949      - unit change in exf_init_runoff from [m/year] to [m/s]
950    o mdsio:
951      - i/o-vector change debugLevel from debLevA to debLevB
952    
953    checkpoint56b_post
954    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
955      is called from DO_THE_MODEL_IO
956      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
957      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
958      - clean up PTRACERS_WRITE_TIMEAVE a little
959    o add another verification experiment that tests both the cfc-pkg and
960      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
961      reactive tendencies treated inline with regular timestepping
962    o testreport previously did a lousy job of comparing small numbers, so
963      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
964      implemented in the little c-progam tmp_cmpnum.c which is embedded in
965      testreport.
966    o ptracers_monitor: bug fix for MPI
967    
968    checkpoint56a_post
969    o GCHEM: finish reorganizating the package
970      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
971        (introduces another 3D-array for each passive tracer, but only if
972        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
973        gchemTendency is not needed because the timestep is done separately)
974      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
975      - GCHEM is now---more or less cleanly---separate from PTRACERS
976      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
977        so clear to me how that should be done in a general way.
978    o CFC: improve formatting of output in CFC_ATMOS
979    o PTRACERS:
980      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
981        that ALL experiments with ptracers enable can be checked. This makes
982        GCHEM_MONITOR obsolete.
983      - include a runtime parameter PTRACERS_monitorFreq that defaults to
984        monitorFreq
985      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
986    o add PTRACERS (PTR0[1-5]) to testreport output
987    o exf_check_range:
988      * default changed to .TRUE.
989      * will check values for niter0 if debLevA, every timestep if debLevB
990      * STOP in exf_check_range if 'out of range'
991      * range chosen generous to allow for potential extema
992      TBD: a version with stricter range
993           permitted range would be runtime parameters
994    o GMredi:
995      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
996      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
997      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
998    o GCHEM:
999      - move call to GCHEM_FORCING_SEP, so that it is now called before
1000        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1001      - introduced a useGCHEM runtime flag and applied it everywhere.
1002      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1003        this flag is now only visible within GCHEM-pkg routines.
1004      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1005        be replaced by a 3D array that is computed before thermodynamics; for
1006        this, the tracer ID iTracer had to be included into the parameter list
1007        of ptracers_forcing
1008      - set up forward_step to call gchem_forcing, that will replace
1009        gchem_forcing_int in ptracers_forcing
1010      - cleaning up
1011    o small cleaning of exch2: remove files that are also in eesupp/src
1012    
1013    checkpoint56
1014    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1015    o mnc: cleanup "full" files--fixes out-of-memory problem
1016    o ECCO-GODAE
1017      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1018      * fully merged and updated from SIO code
1019        windstress sign change affects
1020        - exf_inscal_[u/v]stress
1021        - sign of xx_tau[u/v] adjustments
1022        - signs in cost_scat
1023      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1024      * natl_box_adjoint updated and compressed
1025      * 2-level checkpoint switch added
1026        (tested in EXP. 1 of natl_box_adjoint)
1027      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1028    o SVD
1029      * first complete, non-hacked version for SVD calculations
1030      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1031        performed via direct access files admtlm_vector.it????
1032        (via ctrl_[un]pack)
1033      * optimcycle is used for ARPACK iteration counter
1034        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1035      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1036        and add linear transforms where necessary
1037      * controls are initial/final SST, SSS (can be extended; need to check
1038        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1039    o mdsio: filename info to both stderr, stdout
1040    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1041      from sign change
1042    
1043    checkpoint55j_post
1044    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1045      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1046    o add consistent build directories and .cvsignore files to verification
1047    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1048    o make all subroutines 30 or less characters in length for certain older
1049      compilers to work (a thorough search only turns up two routines in
1050      pkg/ptracers)
1051    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1052      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1053    
1054    checkpoint55i_post
1055    o change arrays for total vertical diffusivity (2.D if explicit,
1056      3.D if implicit) ; each ptracer uses its own background value.
1057    o added mnc/NetCDF output capability to ocn_compon_interf
1058      - added bits to verification/cpl_aim+ocn so that it can run on
1059        ITRDA and other clusters without the mpirun "-wd" option
1060    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1061      configuration
1062    o give MNC the ability to create additional files rather than
1063      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1064      - the default is just less than 2GB which is a practical limit
1065        on many systems
1066    o Compute the non-local term using either KPP vertical diffusivity (=default)
1067       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1068    
1069    checkpoint55h_post
1070    o add verification test "vermix"
1071    o remove all the *_ioinc flags and replace with the single global
1072      outputTypesInclusive flag
1073    o allow to set a vertical profile of vertical diffusivity for T & S
1074    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1075    o useMNC moved from data.mnc to data.pkg
1076    
1077    checkpoint55g_post
1078    o Renaming carbon AD experiments to comply with testreport conventions
1079    o Updating adjoint of Held-Suarez hs94.1x64x5
1080    o Fixing directives for non-ECCO forward_step, after ECCO directives
1081      have been fixed to avoid recomp. of do_oceanic_phys
1082      Works well for global_ocean.90x40x15,
1083      but recomp. issue remains for carbon
1084    o Updating adjoint output for natl_box_adjoint after
1085      pkg/ecco has been modified (see taga c55d_post)
1086    
1087    checkpoint55f_post
1088    o rename to timeave_init_fixed
1089    
1090    checkpoint55e_post
1091    o some delicate re-shuffle of store directives to avoid one
1092      extra call of do_oceanic_physics
1093      affects ecco_the_main_loop.F, do_oceanic_physics.F
1094      checkpoint_lev1_directives.h
1095    o NB: this may break global_ocean adjoint temporarily,
1096      but it is clear how to fix it. Will do later, need this now.
1097    
1098    checkpoint55d_post
1099    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1100    o ecco_cost_weights is modified to 1x1 runs
1101    o modifs to allow observations to be read in as
1102      single file or yearly files
1103    o enable to read exf forcing fields as either
1104      single file or yearly files (flag useExfYearlyFields)
1105    checkpoint55d_pre
1106    
1107    o switch between 2-level and 3-level checkpointing
1108    o add ability of MNC to write local and "partial" (eg. 2D slices where
1109      the full 3D field is never actually stored) arrays to NetCDF files
1110      with the correct (that is, the complete multi-dimensional) set of
1111      array indicies
1112      - used in mom_vecinv() to write the diagFreq output
1113      - tested (demonstrated) in verification/aim.5l_cs
1114    o further mnc-ification
1115      - add verification/lab_sea to the list with mnc setups
1116      - fix undefined mnc v-names in cd_code
1117      - add kpp to mnc output (both snapshot and timeave)
1118    o non-hydrostatic code
1119      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1120        in calc_gw.F
1121      - defaults to viscAh
1122      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1123        friction or Leith) in non-hydrostatic mode, as long as there is
1124        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1125    o pkg/cost
1126      extend simple cost functions to treat time mean quantities
1127      (T,U,V) via cost_accumulate_state from cost_tile
1128    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1129        be 2 times larger than the minimum size the advection scheme requires.
1130        now get a perfect conservation of salt in advect_cs test-exp (updated)
1131    o GGL90 (Gaspar's TKE mixed layer)
1132      - add horizontal diffusion of TKE, requires exchanges in
1133        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1134        default. In OPA there is no horizontal diffusion of TKE but the
1135        mixing coefficients are computed from a horizontal average of TKE of
1136        6 points or so. I think that diffusion has a little more physical
1137        justification.
1138      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1139        was in vain)
1140      - mask tke-variable in ggl90_init
1141    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1142    o fix biharmonic diffusion on CS-grid.
1143    o more obcs stuff
1144      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1145        for reading boundary values. This routine is called from
1146        obcs_prescribe_read
1147      - updated obcs_check
1148      - changed sponge layer relaxation parameter units for days to seconds
1149      - turned off sponge layer by default
1150      - changed argument list of OBCS_CALC to myTime+deltaTclock
1151      - fixed about 35 bugs in obcs_external_fields_load
1152    
1153    checkpoint55c_post
1154    o obcs stuff
1155      - new runtime flags useOBCSprescribe, useOBCSbalance
1156      - re-arranged obcs_calc
1157      - moved exf_getobcs to obcs_prescibe_read
1158        obcs_prescibe_read is called after ORLANSKI stuff
1159        and independent of it (executable can contain all).
1160      - updated obcs_check
1161      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1162        These may be necessary only if tangential velocities are
1163        prescribed at OB, not sure, needs testing.
1164    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1165      which simplifies the calls and passes the ifc check-bounds test
1166    
1167    checkpoint55b_post
1168    o add a 2D scalar, Z location, exchange_2 routine.
1169    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1170      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1171      affects advect_cs results (for the wrong reason): update output.txt
1172    o use a more standard discretization for biharmonic viscosity ;
1173     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1174      affects results of dome set-up: update output.txt
1175    o fix gad_advection.F (CubedSphere part), back to version 1.23
1176    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1177    
1178    checkpoint55a_post
1179    o merged code to
1180      * prescribe/read time-dependent open boundaries
1181        (works in conjunction with exf, cal)
1182      * sponge layer code for open boundaries
1183      * each boundary N/S/E/W now has its own CPP option
1184        (healthy for the adjoint)
1185    
1186    checkpoint55
1187    o up-to-date adjoint of previous breaks
1188      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1189      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1190      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1191      - carbon: * remove tr1-related adjoint verification
1192                * add ptracer as control variable
1193    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1194      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1195    
1196    checkpoint54f_post
1197    o in verification/carbin/ remove experiment related to
1198      ALLOW_PASSIVE_TRACER (array tr1 etc)
1199      code_ad/ input_ad/ results_ad
1200    
1201    o add two new packages
1202      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1203        + subject to optimization (memory)
1204      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1205        + subject to reordering (many GOTOs in the original code)
1206        + so far opps is called for every (i,j) point, and then operates in
1207          the vertical; one may want to reorder the scheme in order operate in
1208          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1209          fields)
1210    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1211      - all verification tests compile and run with linux_ia32_g77
1212      - defaults are compatible with current input files--nothing
1213        should change if you were not previously using MNC
1214      - MNC output has been added in numerous places (eg. timeave)
1215        but there are still a few writes not yet do-able with MNC
1216        (this is in progress)
1217      - flags now allow for either/or/both use of MDSIO and MNC and
1218        documentation will soon follow
1219      - numerous small formatting cleanups for ProTeX
1220    o add version info (via BUILD_INFO.h) to MNC and stdout
1221    
1222    checkpoint54e_post
1223    o add two new packages
1224      - pp81 (Packanowski and Philander, 1981), Richardson number and
1225        stratification dependent mixing
1226      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1227      - these scheme operate in a similar manner as KPP (without ghat, of
1228        course), however there is only one diffusivity that is used for both
1229        temperature and salinity (and passive tracers)ç
1230    o add offline package
1231    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1232      provided by Stephanie Dutkiewicz
1233    o genmake2: add ability to search for C compilers and cleanup test output
1234      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1235    
1236    checkpoint54d_post
1237    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1238    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1239      leading to additional shift by 5 days each year of integration
1240       (i.e. leading to considerable offset over the years)
1241    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1242    o start with no AB and no initial filtering (staggerTimeStep):
1243      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1244    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1245      (external loading & cpl import/export stay in forward_step.F)
1246    o update coupling interface to work with new staggerTimeStep
1247    o change MDSIO ptracers_pickup.
1248    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1249    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1250    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1251    
1252    checkpoint54c_post
1253    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1254      this affects (truncation error) output.txt of test-exp:
1255       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1256    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1257    o change Qnet to always be the net heat flux, (+upward).
1258      affects (truncation error) output of natl_box exp.: updated
1259    o define the max number of passive tracers in PTRACERS_SIZE.h
1260    o start to test mnc routinely in exp0
1261    o add sea-ice loading (sIceLoad) as a new forcing field.
1262    
1263    checkpoint54b_post
1264    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1265       impressive on Altix and Opteron systems)
1266    o diagnostics can now write NetCDF files through the mnc package
1267    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1268    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1269    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1270      affects (truncation error) output of lab_sea & natl_box exp.: updated
1271    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1272    
1273    checkpoint54a_post
1274    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1275    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1276    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1277    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1278      + internal_wave (shift in writing cg2d_ini_res)
1279    checkpoint54a_pre
1280    
1281    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1282      - modified verification/lab_sea and natl_box_adjoint accordingly
1283    
1284    checkpoint54
1285    checkpoint53g_post
1286    o prepare splitting of thermodynamics: store convect.counter in common block
1287    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1288      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1289    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1290    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1291    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1292    o restore adjointability
1293    
1294    checkpoint53f_post
1295    o modifications that affect AIM experiment results (update output.txt):
1296      - no advection of S at top interface Nr (pkg/generic_advdiff)
1297      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1298    o AIM pkg:
1299      - include stability function into surf.Flux derivative relative to Tsurf
1300      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1301    
1302    checkpoint53e_post
1303    o merged cylindrical coord configuration
1304    o added rotating_tank experiment
1305    checkpoint53e_pre
1306    
1307    checkpoint53d_post
1308    o faulks upgraded: re-generate output.txt that have changed:
1309       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1310    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1311    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1312    o added Sadourny discretization of Coriolis
1313      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1314      - re-enabled use of omega3 (useAbsVorticity)
1315    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1316      vector-invariant equations
1317      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1318    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1319      hopefully without new bugs
1320      - still to do: biharmonic friction for non-hydrostatic w
1321    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1322    o regenerated output for global_ocean_ebm (using -ieee)
1323    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1324      of mom_common/
1325      - simple re-arrangement of instructions within computing loop
1326    checkpoint53d_pre
1327    
1328    checkpoint53c_post
1329    o new version of coupler for AIM+thSIce and Ocean models
1330     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1331     - land: change Evaporation of snow
1332     - aim with thSIce: fix bug in snow-precip.
1333    o changes to calc_gw.F
1334     - bug fix for w^2 term near the bottom boundary
1335     - (hopefully) improve the lateral slip boundary condtions for use with
1336        partial/looped cells
1337      - because the bug fix changes two verification experiments anyway (exp5
1338        and plume on slope), change the lateral boundary condition from half slip
1339        to the value of no_slip_sides
1340    o ebm package wasnt quite up to the parallel task. Fixed that.
1341    o Adjoint of EBM package + verification
1342      * TLM OK
1343      * ADM not sufficient accuracy yet (needs further testing)
1344    
1345    checkpoint53b_post
1346    o Commiting new energy balance model to repository
1347      * package is pkg/ebm
1348      * verif. is verification/global_ocean_ebm
1349      * references are in ebm_driver.F
1350    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1351    C        Global thermohaline circulation. Part I:
1352    C        Sensitivity to atmospheric moisture transport.
1353    C        J. Climate 12(1), 71-82
1354    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1355    C        Global thermohaline circulation. Part II:
1356    C        Sensitivity with interactive transport.
1357    C        J. Climate 12(1), 83-91
1358    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1359    C        Destabilization of the thermohaline circulation
1360    C        by atmospheric eddy transports.
1361    C        J. Climate 7(12), 1870-1882
1362    o Will need long integration testing.
1363    checkpoint53b_pre
1364    
1365    o created pkg/mom_common in preparation for variable viscosity code
1366    o renamed and split ini_mnc_io
1367    o pkg/land: only liquid water can diffuse or run-off
1368    o AIM using land: soil wetness availability account for snow
1369    o added printMapIncludesZeros to EEPARMS namelist
1370    
1371    checkpoint53a_post
1372    o restore TAMC compatiility for exf_constants.h
1373      (no usage of _d in .h)
1374    o Additional storing in KPP in an attempt to fix
1375      TAMC problem with adjoint of KPP code.
1376      (no success...)
1377      Identical code works fine with TAF.
1378    o Fixed verification/natl_box_adjoint experiments.
1379      Initial conditions for Experiments 4 and 5 are now
1380      set to "SEAICE_initialHEFF=0", which is more reasonable,
1381      and hence gives results closer to that of Experiment 2.
1382      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1383    
1384    checkpoint53
1385    o stable checkpoint with up to date adjoint
1386      TLM tests only run for 1st grdchk at the moment. Its unclear if
1387      this is a code problem or a problem with resetting code for g_
1388      variables that is being autogenerated wrong.
1389      Otherwise:
1390       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1391       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1392         are both still in chaos following their security messes.
1393    
1394    checkpoint52n_post
1395    o various build (mostly genmake2) changes including:
1396      - ability to build/run more easily within Cygwin and MacOS X
1397      - more complicated Makefiles with a stronger dependence on Gnu Make
1398    o pkg/seaice modifications
1399      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1400        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1401        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1402      - changed proxy for geostrophic velocity and updated
1403        verification/lab_sea/results/* accordingly
1404      - removed ADI dynamic solver from pkg/seaice
1405      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1406        they caused a segmentation fault under certain circumstances
1407      - removed unused field WATR
1408    o bug fix in exf-package:
1409      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1410         now reflect that.
1411    o small fixes in the cal-package:
1412      - set reference date to first of January for the 'model'-calendar
1413      - failing of cal_CheckDate in cal_FullDate now actually results in a
1414        warning
1415    o small modifications in exf-package to increase flexibility:
1416      - change climtempfreeze from a constant to a runtime parameter that
1417        is specified in data.exf_clim (default = -1.9)
1418      - introduce runtime parameter windstressmax (default = 2.0) that is
1419        specified in data.exf
1420    o fix in pkg/thsice:
1421      - update Evap (Tsf changes) to be consistent with Latent heat flux
1422      - maintain snow precipitation unchanged (even if Tsf >=0).
1423     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1424    
1425    checkpoint52m_post
1426    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1427      this does not change any of the results, because myIter=0 in swfrac always
1428      lead to jwtype=2 (the default anyway), but the call makes little sense
1429      as a default
1430    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1431    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1432      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1433    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1434    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1435    o extending useSingleCpuIO option to work with new exch2 I/O format
1436      - old-style, missing-tile I/O is still accessible by defining CPP
1437        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1438    o monitor package can write to NetCDF files and/or STDOUT
1439    o fix re-definition bug in MNC_GRID_INIT_ALL()
1440    o doc/api_reference added
1441      - a framework for building an API Reference Manual using all
1442        the "protex" comments embedded in the code
1443      - see pkg/generic_advdiff, pkg/mnc for examples
1444    o MNC:
1445      - make myThid the last argument for all subroutines
1446      - new default for the grid files: NO halos
1447      - add useMNC and other run-time flags
1448      - separate per-file-group handling of the unlimited dimension
1449      - early initialization of MNC w/ flags read at the eeboot stage
1450        and lookup tables set in initialize_fixed
1451      - write all MNC output to a freshly-created directory
1452    o thermodynamics sea-ice (thsice) is now tested with testreport.
1453    o test exp. advect_cs: use the standard cs32 grid ; update output.
1454    o Added functionality to grdchk:
1455      pick global i,j,k position (or nearest wet) where to perform check.
1456    
1457    checkpoint52l_post
1458    o new land formulation:
1459      a) use ground enthalpy as prognostic variable to ensure exact
1460         energy conservation.
1461      b) account for water temperature and for latent heat of freezing
1462         in all processes (rain, run-off, ground storage)
1463      c) compute surface and ground temperature implicitly.
1464    o aim_v23 modification for new land model:
1465      a) Treat separately land / ocean / sea-ice surface fluxes
1466         to allow implicit computation of land & sea-ice surface temp.
1467      b) add snow precipitation.
1468    checkpoint52l_pre
1469    
1470    o fix problem (when 1 tile is empty) in min/max monitor.
1471    o fix bug in timeAve (u,vZetatave in common block)
1472    o no restoring terms under ice for pkg/seaice
1473    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1474    o bug fix for pkg/seaice pickups
1475    o change MNC call locations and add coordinate attributes
1476    o mask vorticity at the corner ; affects global_ocean.cs output
1477    o fix ini_curvilinear_grid ; test CS experiments with mpi
1478    o aim.5l_cs: modify sea-ice fraction input file ; update output
1479    o exf: Adding simple range check routine for exf fields after read
1480    
1481    checkpoint52k_post
1482    o removed top-level directory "diags"
1483      - we migrated these functions to pkg/timeave a long time ago
1484    o fixed bug introduced in pkg/monitor
1485    o accuracy ctrlprec = 32 insuffient for gradient checks using
1486      averaged fields (I/O via cost_averages)
1487      -> use ctrl.h in active_file*.F to control I/O precision.
1488    o paramter list of CALL ADTHE_MAIN_LOOP
1489    o added initial do_the_model_io to ecco
1490    o set all ...Freq to zero after cost_final
1491      taveFreq, dumpFreq, pChkptFreq
1492    o MAIN and ECCO differentiability restored
1493    
1494    checkpoint52j_post
1495    o fix nchklev in tamc.h for global_ocean...
1496    o Bringing flow and store directives up-to-date
1497    o Really weird thing!
1498      call do_the_model_io from the_main_loop with parameters
1499      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1500      TAF places a faulty re-call of initialise_varia
1501      after cost_final call which should not be there!
1502    checkpoint52j_pre
1503    
1504    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1505      error messages
1506    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1507    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1508      debug output
1509    o modfied mdsio_writefield.F to handle non-global files under exch2
1510    o update AIM Cubed-Sphere exp (aim.5l_cs):
1511      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1512    o update AIM Equatorial Channel exp:
1513      use standard aim_v23 pkg and change the SST fields to be more realistic.
1514    o globalFile now works with exch2
1515    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1516      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1517    o limit timeave output for hi-res integrations
1518    
1519    checkpoint52i_post
1520    o removed CPP_EEOPTIONS.h from verification/*/code
1521    o updated the tiling for global_ocean_pressure
1522    checkpoint52i_pre
1523    
1524    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1525      the old pkg/aim).
1526    
1527    checkpoint52h_pre
1528    o shortened offending lines in exch2_send_rx?.template
1529    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1530    o genmake2: add build & execute test for NetCDF code
1531    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1532      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1533    o added useSingleCPUIO flag to monitor.F and mon_out.F
1534    o added temporary hack for sea-ice dynamics on the cube:
1535      metric terms are ignored and it is assumed that
1536      there is no sea-ice on cube faces 1, 2, 4, and 5.
1537    
1538    checkpoint52f_post
1539    o added exch2 cube routines to pkg/exch2
1540    o modified hs94.cs-32x32x5 to use it
1541    o added new grid files to hs94.cs-32x32x5
1542    checkpoint52f_pre
1543    
1544    checkpoint52e_post
1545    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1546      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1547    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1548      to work with implicit vertical advection and AB ;
1549    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1550    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1551     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1552    checkpoint52e_pre
1553    
1554    o fix bug in impldiff when Nr=1 or Nr=2.
1555    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1556    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1557    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1558      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1559    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1560    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1561    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1562    
1563    checkpoint52d_post
1564    o re-tiled many expts to allow comparison in multi-processor mode
1565      - updated output accordingly
1566      - changed hs94.128x64x5 to use intial T from file rather than use the
1567        random number generator
1568    o add infrastructure in model routines for fizhi and gridalt packages
1569    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1570    o changes to permit hi-res, cubed-sphere, configuration
1571      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1572      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1573      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1574        of surface winds for the cube
1575      (A verification experiment, based on global_ocean.cs32x15, but with
1576       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1577       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1578       complete with example surface forcing files and matlab scripts to look
1579       at the output and compare it with that of global_ocean.cs32x15.)
1580    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1581       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1582       to conform to the common rule.
1583    o check-in the first version of the coupler + interfaces for multi-components
1584       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1585       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1586       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1587       - ocean and atmos. share the same horizontal grid (no interpolation).
1588       - exchanges between component and coupler is done in forward_step
1589    o new verification experiment, cpl_aim+ocn:
1590       coupled ocean - AIM atmosphere on cs32 grid.
1591    
1592    checkpoint52d_pre
1593    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1594    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1595    
1596    checkpoint52c_post
1597    o Fixing OPTIONS files for use of exf:
1598      - ALLOW_ECCO not needed
1599      - ECCO_CPPOPTIONS.h should not be included from
1600        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1601        as has been the case in the past
1602      - All cal/exf related options are currently set in
1603        single header file. Should remain so until we
1604        agree on a consistent new policy.
1605    o Removed all CPP options for cal package.
1606      cal has no more CPP options.
1607    o modified STOREs in GAD_ADVECTION
1608    o corrected key comp. for passkey
1609    
1610    checkpoint52b_post
1611    o new version: "thsice" of thermodynamic sea-ice pkg:
1612     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1613     - modify fluxes but do not change theta directly;
1614     - light cleaning of bulk_force pkg (still needed with thsice).
1615     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1616       + output_thsice.txt to test thsice & bulk_force pkgs.
1617    o put back grid & coriolis monitor output.
1618    checkpoint52b_pre
1619    
1620    o call "do_the_model_io" at the beginning (=> dump initial state)
1621    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1622    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1623      (need info on NUMBER_OF_PTRACERS)
1624    o missing PTRACERS headers in some routines
1625    o default tamc.h in pkg/autodiff supposed to crash
1626      to ensure proper customization
1627    
1628    checkpoint52a_post
1629    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1630      - moved surfaceTendencyTice from pkg/seaice to main code
1631      - subroutine FREEZE_SURFACE now limits only surface temperature
1632        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1633        => new output.txt for global_ocean.cs32x15 & global_with_exf
1634      - keep the old version of FREEZE for backward compatibility;
1635        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1636      - corresponding modifs for TAF directives
1637    o added surface flux output variables to TIMEAVE_STATVARS
1638    o time-averaged output for pkg/ptracers
1639    o fix problem with ECCO-related divided adjoint
1640      snapshot file was missing some ad-variables,
1641      but no warning issued by TAF
1642    
1643    checkpoint52a_pre
1644    o some bug fixes for #undef REAL4_IS_SLOW
1645    
1646    checkpoint52 = ecco_c52_e35
1647    o after testing adjoints of checkpoint51u_post
1648    
1649    checkpoint51u_post
1650    o this is the post-merge tag of the ecco-branch
1651      (needs another clean checkout and re-testing)
1652    o various natl_box_adjoint configs and results
1653      but no input fields
1654    o obcs adjoint not yet merged!
1655    o adding ECCO global 1x1 and 2x2 degree configs
1656    o updated/extended some store directives for seaice
1657    o pkg/ecco now containes ecco-specific part of cost function
1658    o top level routines the_main_loop, forward_step
1659      supersede those in model/src/
1660      previous input data.cost now in data.ecco
1661      (new namelist ecco_cost_nml)
1662    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1663    
1664    checkpoint51t_post
1665    o this is the pre-merge tag of the ecco-branch
1666    
1667    checkpoint51s_post
1668    o cleanup: removed various obsolete #define-s
1669    o pkg/grdchk
1670      - renamed 'ph-grd 3' to 'grad-res'
1671      - merged from ecco-branch
1672        (remaining bug fixes for obcs gradient checks)
1673      - additional high-precision output for testreport
1674        (grep for 'precision_grdchk_result')
1675    
1676    checkpoint51r_post
1677    o cleaned up or removed CPP_OPTIONS.h files
1678    o updated results for some of the tests to reflect the new
1679      optfiles (-ieee: -O0 instead of -O3)
1680    
1681    checkpoint51q_post
1682    o cd_code:
1683      - moved cd_scheme.F -> cd_code_scheme.F
1684      - separate read_checkpoint from cd_code_ini_vars.F
1685      - separated cd_code part from write_checkpoint
1686      - updated AD_SOURCE, generated .flow
1687      - added CD_CODE_VARS.h to the_main_loop
1688      - Moving cd_code specific store dir.s to pkg/cd_code
1689    o ctrl package totally restructured
1690      - pack/unpack now optional and decoupled from
1691        xx_/adxx_ I/O
1692      - ctrl_pack/unpack cleaned
1693        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1694      - confined inclusion of AD_CONFIG.h to where necessary.
1695    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1696    
1697    checkpoint51p_post
1698  o create initial cd_code package  o create initial cd_code package
1699      - WARNING: the initialization of fields within packages
1700        is broken because INI_FIELDS (where READ_CHECKPOINT is
1701        called) is called *before* PACKAGES_INIT_VARIABLES.
1702        This seems to be backwards since
1703        1) its important to initially zero the entire field including
1704           the "halo" region
1705        2) zeroing needs to be done *before* reading pickup info
1706           and the pickup call might or might not happen in any
1707           particular run
1708      - this needs an overhaul for R2
1709  o cleanup verification/*/code/GMREDI_OPTIONS.h  o cleanup verification/*/code/GMREDI_OPTIONS.h
1710  o cleanup testreport  o cleanup testreport
1711    

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