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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.696 by heimbach, Sat Jul 8 00:29:20 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 take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
8    o commit code to make SST/SSS weights spatially variable
9      (based on either variable in-situ or variable initial T/S weights)
10    o pkg/ecco:
11      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
12        now based on horizontally varying weights wthetaLev, wsaltLev
13      * cost_averagesflags now returns year indices in addition to day, month
14      * sflux balance is performed on annual basis
15        (sflxumm, sfluxmm2, bal_sfluxmm)
16      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
17        including separate counting and multipliers
18    
19    checkpoint58k_post
20    o testreport:
21     - always build in dir. "build" (if not there, mkdir build instead of building
22       & running in input)
23     - run in dir run (if it exists), in build otherwise.
24     - call prepare_run (if input/prepare_run exists)
25     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
26    o pkg/exf modifications to interpolation and rotation routines for more
27       reasonable treatment of North Pole singularity: for tracers North Pole
28       value is set to northernmost zonal-mean value, for zonal velocity it is
29       set to zero, and for meridional velocity it is set to northernmost value.
30    o pkg/exf/exf_check_range.F
31     - add tile index to diagnostics and move stop statement to the very
32       end of the routine.
33    o pkg/diagnostics: (diagnostics_main_init.F)
34      define title of isomorphic variables according to the current config.
35    o pkg/thsice with pkg/seaice dynamics:
36    - fix domain of computation (interior only, required for exf) and do exchanges
37    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
38    o towards a standard way of dealing with multi-threading in MONITOR
39      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
40    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
41       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
42    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
43    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
44    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
45       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
46    o tracer advection:
47     - clean-up and simplify calc_common_factors.F
48     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
49       advection subroutine (but still not used within DST advection S/R)
50    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
51    
52    checkpoint58j_post
53    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
54      from file (collects calls previously in FORWARD_STEP)
55    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
56    o adjoint store dir. adjusted accordingly
57    o genmake2
58      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
59    
60    checkpoint58i_post
61    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
62      on wind stress (SEAICEstressFactor defaults to 1.)
63    o Total number of Timers is finite (<=40): comment out 2 non-essential one
64      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
65    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
66      on CS-grid: no longer loosing mass.
67    o exf & curvilinear-grid: no longer modify longitude xC & xG.
68    o pkg/ggl90: fix sloppy output and fix a bug
69    o pkg/seaice: added SEAICEuseEVPpickup parameter
70      - Set to false in order to start EVP solver with
71        non-EVP pickup files when using SEAICEuseEVP
72      - fix sign error in diffusion in seaice_calc_rhs
73    
74    checkpoint58h_post
75    * Modifications for bottom topography control
76      o replace hFacC by _hFacC at various places
77      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
78      o add non-self-adjoint cg2d_nsa
79      o update autodiff support routines
80      o re-initialise hfac after ctrl_depth_ini
81      o works for 5x5 box, doesnt work for global_ocean.90x40x15
82    * Adding verification for 5x5 box (4-layer) bottom topography control
83    
84    checkpoint58g_post
85    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
86       used for mean seasonal cycle, mean diurnal cycle); add an example
87       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
88    o pkg/ggl90:
89      - add parameter (minimum surface kinetic energy)
90      - fix bug (avoiding division by zero)
91    o couple pkg/thsice to pkg/seaice:
92      - modify advection in seaice to accomodate new scalar fields to be advected
93      - only muliDimAdection scheme work with seaice/thsice
94      - mapping of thsice-variables to seaice-variables, back and forth
95      - does not break the verification experiments, but does not give the
96        desired results either
97    o pkg/seaice
98      - make (default) second order advection a bit less confusing?
99    
100    checkpoint58f_post
101    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
102      to pkg/seaice):
103      - new routines thsice_map_exf and thsice_get_exf provide the interface
104      - add an additional formal parameter to thsice_solve4temp
105    o pkg/exf:
106      - add new fields wspeed, snowprecip (to be able to couple to thsice)
107      - correct Stefan-Boltzmann constant
108      - new parameter for longwave surface emittance
109      - separate some stuff from exf_bulkformulae into new routines  
110        exf_radiation, exf_wind
111      - add new parameters and constants: longwave emissivity for ocean, ice
112        and snow, evaporation parameters over ice
113      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
114        either wind from stress or stress from wind
115    o pkg/thSIce:
116    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
117    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
118       and THSICE_CALC_THICKN
119    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
120    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
121      to make debugging easier.
122    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
123    o pkg/bulk_force:
124      - clean-up comments and parameters ;
125      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
126    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
127      generate new output for test-experiment: aim.5l_cs.thSI
128    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
129      testreport accordingly
130    
131    checkpoint58e_post
132    o SEAICE_CGRID adjoint done
133    o R_STAR adjoint implemented.
134      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
135      * need to sort out init. of h0facc, etc.
136    o Make pkg/profile fully independent of ecco,cost, etc. stuff
137      to be able to use it in pure forward.
138    
139    checkpoint58d_post
140    o upgrade simple test-experiment to tutorial example:
141     step.1: duplicate the experiment and (step.2) will remove the old copy.
142      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
143      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
144      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
145      tutorial_global_oce_biogeo    <- copy of dic_example
146      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
147      tutorial_plume_on_slope       <- copy of plume_on_slope
148      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
149      tutorial_global_oce_optim     <- empty for now (David ?)
150      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
151     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
152    o correct a sign problem in cost_scat.F
153    o obcs and ptracers: fix boundary conditions for advections schemes
154      with larger stencil
155    o thsice adjoint: start
156    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
157      completeness
158    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
159      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
160    o ptracers adjoint:
161      * avoid extensive recomputatations
162      * fix missing re-init. of gptr (missed by TAF)
163    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
164      me to turn off the excessive output to STDOUT that this package produces
165    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
166      and add those terms in Vector-Invariant formulation.
167    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
168      if the control period (xx_hfluxperiod etc) is 0
169    o in profiles pkg, clean routines and fix details
170    o in ecco pkg, reading ssh data:
171      fix problem in case the model does not start at iter0=0
172    o fix mnc-pickup/restart for ptracers
173    o new package prifiles:
174      code to compute profile-based cost by Gael Forget
175      (modifs in ecco, ctrl, autodiff)
176    o Benign bug fix in initialization (spotted by M. Mazloff) of
177      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
178    
179    checkpoint58c_post
180    o adjoint: finish NLFS adjoint and provide reference output in
181      verification/global_ocean.90x40x15/results_ad_nlfs
182    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
183      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
184      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
185      with SEAICE_CGRID defined.
186    o move calendarDumps from "data" to "data.cal" and clean-up the code
187      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
188    o add useEXF & useCAL flags (for now, set in hard-coded way)
189    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
190      (were missing in NH mode, and wrong in quasihydrostatic mode).
191      waiting for Chris updated version of calc_gw to add those CALLs.
192    o fix bug in quasihydrostatic S/R ;
193      add a test for this option: global_ocean.90x40x15.qshyd
194    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
195      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
196    o add on/off flag useOffLine for package OFFLINE
197    o seaice:
198      - modify advection so that it works also on the C-grid
199      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
200        problem in multi-tile runs with C-grid
201      - add flags for clipping ice velocities and/or masking solver forcing
202      - fix drag (ocean on ice) formulation and a bug that caused noise in the
203        C-grid solver
204      - added a few comments to seaice_diffusion.F
205      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
206        are now exclusive)
207      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
208        required re-ordering the code a little:
209       + make DAIRN global variable (defined in SEAICE)
210       + move computation of the viscosities eta and zeta into a new separate
211         routine (because I need to recompute them in seaice_ocean_stress.F)
212    
213    checkpoint58b_post
214    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
215      update output.txt of exp. aim.5l_cs.thSI
216    o various mnc cleanups and improvements:
217      + shrink lookup tables by factor of ~4
218      + better error reporting when running out of lookup space
219      + able to handle longer path/file names (up to 500 chars)
220    o adjoint:
221      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
222      - TBD: "hidden" mom_vecinv recomp. in dynamics
223    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
224     (allow to differentiate between forcing components using new integer flags:
225      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
226     and add new flag to put Dissipation tendency out of Adams-Bashforth.
227    o ecco
228      - enable trend removal from SSH anomaly obs.
229    o adjoint
230      - a fix for PmEpR when #undef EXACT_CONSERV
231      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
232      - try to fix "hidden" recomp. in forward_step for NLFS
233        (NLFS seems broken sometimes after I checked it in)
234    o seaice:
235     - add c-grid version of the dynamic solver:
236       + three new routines that are the c-grid substitute lsr, dynsolver
237         and ostres
238       + put a few fields that were local to dynsolver into global common
239         blocks, so that I can move the computation of stresses etc into
240         seaice_lsr (saves coding but may break the adjoint).
241     - replace more hardwired parameters by runtime parameters
242     - add ice masks that mask the rhs of the implicit solvers where there
243       is no ice (commented out in seaice_dynsolver, because i am not sure
244       if this works properly), eventually this should replace the clipping
245       of ice velocities in seaice_dynsolver to +/-40cm/s.
246    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
247      include it only where its needed
248    o move balancing of fluxes before the call of external_forcing_surf
249    o seaice:
250      - correct units of turning angles (now they are really in degrees)
251      - move computation of GWATX/Y out of main routine into dynsolver
252      - initialize GWATX/Y in seaice_init
253    o Apply mask on Fresh-Water flux (needed for SSH forcing).
254      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
255    o seaice: add runtime flags for turning angles (default to zero)
256    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
257      and trend from exf forcing and ctrl control adjustments
258    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
259      (since checkpoint57x_post)
260    o change the default rotation period to 86164.s = the Earth rotation
261    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
262      and based on a reference stratification. Tested within hs94.cs-32x32x5.
263    o seaice advection: add code for choosing between the default (2nd order
264      central differences) and multiDim advection schemes provided by
265      pkg/generic_advdiff
266    o seaice:
267      - removed all references to SEAICE_GRID.h fields from
268        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
269        (cubed-sphere configuration will change a little)
270      - grid computations in seaice_init are obsolete now.
271      - cleaned up code a little so that is easier to read (hopefully).
272      - added new (better?) discretizations of default advection and diffusion
273        (turn on with SEAICEuseFluxForm)
274      - replace 1 in 3d global fields by kSurface in growth.F
275      
276    checkpoint58a_post
277    o seaice:
278      - bug fix in advect.F
279    o shelfice:
280      - separate shelfice load anomaly from pload (breaks with time
281        dependent forcing), => introduce constant field shelficeLoadAnomaly.
282        Its default is 0., but it may be computed more cleverly from (unknown)
283        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
284        done offline. A good approximation of the pressure load anomaly is
285        necessary to avoid large initial adjustment processes underneath
286        deep-reaching shelfice.
287      - small fix in ISOMIP shelfice_thermodynamics
288      - add more sophisticated thermodynamics of Hellmer (1989), this is
289        now the default
290      - give a few constants more intuitive names
291    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
292      if bulk formulae are used in long integration (especially EmPmR). Turn
293      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
294      if balancePrintMean, the imbalance that is substracted is printed to
295      STDOUT.
296    o fix bug (typo) in obcs_apply_eta.F
297    o add a new package shelfice which enables us to model the circulation
298      underneath shelf-ice with draughts of hundreds of meters.
299     - works
300     - to do: + include improved thermodynamics
301              + check whether kSurfC (from model/inc/SURFACE.h) can be used
302                instead of new field kTopC
303              + can we use topoFile, Ro_surf and existing code in ini_depth.F
304                instead of new field R_shelfIce and new code in ini_depth.F
305                and ini_mask_etc.F?
306              + adjust vertical mixing schemes?
307    o seaice pkg:
308     - add a cpp-flag to include a simple formula for a salinity dependent
309       freezing point of sea water at the surface
310     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
311       meridional stresses are now different (and hopefully correct)
312    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
313       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
314       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
315    o pkg/diagnostics: add options and parameters for regional-statistics
316       diagnostics ; define regions by reading a region-mask from a file
317       (might add other options later)
318    o pkg/bulk_force:
319     - add option and parameters to use AIM surface-flux formulae.
320     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
321       others forcing fields (defined in PARM05, parameter file "data") are loaded
322       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
323     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
324     - use the right EXCH call for uwind,vwind (to work on CS-grid).
325     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
326       and parameters (note: calcWindStress replaces .NOT.readwindstress).
327     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
328    
329    checkpoint58
330    o add "--embed-source" option to genmake2 which, when the supporting
331      tools can be compiled (as determined by genmake2) will turn on the
332      embed_files package which then embeds the entire MITgcm source code
333      (*.[fFhc] + Makefile) used for the build within the executable
334      - requested by CNH but off by default
335      - adds a paltry <9MB to the mitgcmuv executable in most cases
336      - only writes the output when useEMBEDSRC in eedata is true
337    o clean up 3-dim. relaxation codes:
338      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
339      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
340      * Thanks to Tom Haine for testing!
341    
342    checkpoint57z_post
343    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
344      affects output (@ truncation level) of exp. plume_on_slope ; updated.
345    o fix the pickup behavior for obcs in combination with ptracers
346    o fix a bug in ptracers_external_fields_load
347    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
348      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
349    o transfered surface NH pressure to eta field (if exactConserv).
350    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
351         and update lab_sea output.txt file.
352    o completing 3-dim. relaxation code: additional term
353         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
354      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
355      * At compile time, in "EXF_OPTIONS.h" set
356          #define  ALLOW_CLIMTEMP_RELAXATION
357          #define  ALLOW_CLIMSALT_RELAXATION
358      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
359          tauThetaClimRelax3Dim = 15552000.0,
360          tauSaltClimRelax3Dim  = 15552000.0,
361      * 3 cases:
362          1) Use a constant-in-time 3-dim. field
363          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
364          3) Real-time relax. to time-evolving prescribed field
365    o Adding Laplacian-type smoothness constraint on
366      initial and boundary (forcing) controls (ic, bc)
367      * enable at compile-time via
368        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
369      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
370      * Absolute scale somewhat unclear so far
371      * no area weighting was included since no other cost term does so far
372    
373    checkpoint57y_post
374    First step for a NLFS adjoint
375    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
376    o new init. routines for calc_r_star, calc_surf_dr
377    o still need to deal with ini_masks_etc
378    o testreport seemed happy
379    checkpoint57y_pre
380    
381    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
382    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
383    o add new offset feature to offline pkg (plus minor cleanup)
384    o cfc fixes for final year of integration
385    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
386      be in GCHEM_OPTIONS).
387    
388    checkpoint57x_post
389    o fix testreport Pb in multiple test experiment.
390    o cleanup our namelist syntax in verification:
391      - make it more F95 standards compliant (some work still needed)
392      - allows the vast majority of our tests to work with gfortran
393    o Non-Hydrostatic:
394     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
395     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
396    o Allow to apply AB on T,S rather than on AB(gT,gS):
397     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
398     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
399       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
400     - need a "clever" read_pickup to restart from the other AB formulation
401    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
402    o remove some unused variables (reduces number of compiler warnings)
403    o adjoint
404      * Disable useVariableViscosity for adjoint for time being
405        (there are a number of extensive recomputations)
406      * Initialize certain variables needed for adjoint
407    
408    checkpoint57w_post
409    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
410                 fix the singleCpuIO RS version of MDSWRITEFIELD
411       and add a WARNING if using globalFiles=T with multi-processors.
412    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
413      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
414    o tracer advection scheme:
415      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
416       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
417       was not very convenient).
418      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
419       (further tests needed for the implicit DST & Flux-Limiter schemes).
420    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
421      and sRef for convenience, handy, when you want to initialize
422      ptracers in a large domain with a constant non-zero value. Also,
423      untangle ptracers_init.F a little.
424    
425    checkpoint57v_post
426    o change dome exp. to use variable viscosity in side-drag terms.
427    o remove all the files from the cfc_offline test since they are now
428      incorporated into tutorial_cfc_offline which has been producing
429      identical results for a few days of testing
430    o add new parameter: sideDragFactor to enable half-slip-side BC
431      and change side-drag S/R to use viscosity from mom_calc_visc
432      (can switch back by setting sideDragFactor=0.); affects results at
433      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
434       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
435    o vorticity & strain are now computed without masking, to account for
436      no-slip-side BC in variable viscosity calculation ; mask is applied
437      anyway later on, before computing advection/coriolis terms.
438    o modify exp4 to test new obcs support for reading from external files
439      and for passive tracers
440    o fix behavior of ptracers_monitor when monitor output is written to a
441      netcdf-file; still not independent of monitor.F (writes in the same
442      file).
443    o change default value of tRef (put a uniform, meaningful value for ocean
444      & atmos) and initialize sRef (was missing, as Martin mentioned).
445    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
446      to be proportional to enstrophy dissipation length.  Thus,
447       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
448      This is now consistent with Smagorinsky and with the manual.
449    
450    checkpoint57u_post
451    o OBCS and PTRACERS: add open boundary support for passive tracers
452      - either use homogenous (pseudo) v.Neumann conditions or prescribe
453        OB-values from file; this is not different from the way theta and salinity
454        are treated
455      - however, Orlanski-radiation conditions are not supported, and the model
456        will stop if you use pTracers and Orlanski at the same time.
457      - beefed up the rountine obcs_external_fields_load: now only those open
458        boundary values are overwritten with values from files for which there
459        are really files, otherwise the OB-fields remain untouched. This makes
460        it possible to use different OBs at different ends of the domain (as
461        with EXF)
462    o reduce number of exch calls in shap_filt (s2).
463    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
464      truncation level) 4/5 MLAdjust test results (11&12 digits match).
465    
466    checkpoint57t_post
467    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
468    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
469      same truncation, independent of the face number: affects affects several
470      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
471    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
472      note that biharmonic viscosity + no-slip was not tested in any experiment.
473    o fix bug in non-linear free-surf side-drag ; generate new output for
474      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
475    o make mnc honor the writeBinaryPrec flag for most kinds of output
476    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
477    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
478      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
479    o add brackets in multi-terms sum to get same truncation, independent of
480      the face number (manage to get exactly same value of gU,gV at the cs-edge)
481      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
482    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
483      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
484      a maximum grid-scale Reynolds number.  Also, changes all length calculations
485      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
486      Suggested values of viscosity parameters found in mom_calc_visc.
487      Many new viscosity diagnostics available.
488    
489    checkpoint57s_post
490    o Add clearing-house for viscosity calculations, mom_calc_visc and
491      correct numerous bugs in LeithD and Smagorinsky discretizations.  
492      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
493      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
494      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
495      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
496      The Strain-Tension form is now called with useStrainTensonVisc=.true.
497      ViscAhStrain and viscAhTension are now retired.
498    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
499    o In response to JMC's bug report, genmake2 now ignores any soft-links
500      that it finds in the *current* directory when searching for files.
501      Soft-links found in any other source directories will still work as
502      they did before.
503    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
504      a C routine to unlimit the stack size
505    o mnc-ify pkg/aim snapshot vars
506    o mnc-ify pkg/land as requested by Daniel
507    o various changes to mnc including:
508      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
509      - output can now be grouped so that all files within a group
510          change the ITER portion of their names in lock-step together
511      - can now read ("global") PER-FACE (in addition to PER-TILE) files
512          and works with both EXCH1 and EXCH2 (but needs more testing)
513      - writing works for all verification test cases w/ g77 on Linux
514    
515    checkpoint57r_post
516    o make MNC variable initialization happen earlier
517    o add diagnostics for (almost) each term of the momentum Eq.
518    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
519    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
520    o remove MINIMAL_TAVE_OUTPUT option ;
521      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
522    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
523      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
524    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
525    o add time-dependent SST, SSS control
526    o cost terms in ecco/ modularized (new cost_generic.F)
527    o cost_averages routines are modularized (new cost_averagesgeneric.F)
528    o new infrastructure for seaice model vs. obs misfits in seaice/
529      * driver from the_main_loop.F is seaice_cost_driver.F
530      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
531      * gradient check in Exp. 6a of natl_box_adjoint/
532    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
533      (see README file)
534    
535    checkpoint57q_post
536    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
537    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
538      - bug was reported by Jean-Michel and Ian Fenty
539    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
540      update exp. cpl_aim+ocn output.
541    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
542      Needed for high-res. runs with large global files
543      to be able to limit tapelev size
544    o Changed some tests for adjoint:
545      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
546      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
547      * global_ocean.90x40x15/ back to default 3-level checkpointing
548    o Modifications to enable scripted COMMON to MODULE conversion
549      * verification/OpenAD/code/ has necessary scripts and description;
550      * converts, compiles and runs successfully;
551    
552    checkpoint57p_post
553    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
554    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
555      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
556    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
557    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
558      (was already the case for dissipation with mom_vecinv,
559       and also the case for grad.PhiHyd when staggered-timeStep)
560      This will allow to put dissipation out-off the AB time-stepping.
561     Unfortunately, affects truncation error. Update output of exp. that "fails"
562      (cg2d matching number) and leave the others for later: front_relax(10),
563      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
564      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
565    
566    checkpoint57o_post
567    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
568      (2) its ready to be documented during the 20050801 DocFest
569    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
570      for ideal_2D_oce and lab_sea on linux_ia32_g77
571    o set to #undef CTRL_SET_OLD_MAXCVARS_30
572      in global1x1_tot/code_seaice_adj to access indices 32, 33
573      (worth another tag)
574    
575    checkpoint57n_post
576    o adding precip control xx_precip 32
577    o adding swflux control xx_swflux 33
578    o Replacing 10 forcing penalty cost routines by 1 generic.
579    o Implementing partitioning in time-mean and variable adjustment
580      for atmos. state.
581    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
582    o in natl_box_adjoint:
583      * updated exp 1 to 10
584        (but does not have time-mean vs. variable split results yet)
585    o updated global1x1/*_seaice_adj/
586      to incorporate latest changes
587    o enable useSingleCpuIO for mdsio vector routines
588      (applies in particular to tapelev I/O)
589    o removed inefficient K-loop in all active_file*control*.F
590    
591    checkpoint57m_post
592    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
593      and advect_cs (use EXCH-2 and standard cs-32 grid files).
594    o pkg/exch2: filling of face-corner halo regions is optional
595      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
596    
597    checkpoint57l_post
598     tag before updating tutorials (pre-release-2)
599    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
600       for output and interpolation of input fields onto model grid)
601    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
602       Affects results of exp. rotating_tank ; update output.txt.
603    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
604          and taking the square quantity and/or using a fraction-weight field.
605    o fix aim_diagnostics_init.F mate numbers.
606    o add mnc output capability to diagnostics/diagstat and update
607      our cvsignore files for the ACSII output generated
608    
609    checkpoint57k_post
610    o lab_sea now uses diagnostics package and provides a suite of
611      new EXF diagnostics output.
612    
613    checkpoint57j_post
614    o exf
615      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
616        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
617        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
618      * extended diagnostics output
619        - now includes all EXF variables
620        - hs, hl moved to common block
621        - separate S/R for diagnostics, called after ctrl vector is added
622        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
623        - EXFqnet contains true Qnet (i.e. includes qsw)
624      * updated verif. lab_sea, global_with_exf
625      * Rearranging hflux (exf_mapfields -> exf_getforcing)
626        to ensure that diagnostics sees a true EXFqnet
627    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
628    o diagnostics pkg: change pointers so that 1 diagnostic can be used
629      several times with different frequencies.
630    o mnc-ify the thsice package as requested by Daniel Enderton
631      - the monitor--MNC output needs work
632      - many attributes need to be added (most are currently blank)
633    o mnc-ify theaim_v23 package as requested by Daniel Enderton
634      - many attributes need to be added (most are currently blank)
635    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
636    o add Sadourny like discretization to the 4th.O vorticity advection scheme
637    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
638      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
639         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
640    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
641     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
642    
643    checkpoint57i_post
644    o Diagnostics package was changed: diagnostic allocation is now deactivated
645      by setting an empty file name in the namelist (used to be by setting 0 frequency)
646    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
647      add 1rst Order upwind vertical Shear.
648    o add a quick fix for A/B checkpointing in OFFLINE mode
649    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
650      end-run around the C/Fortran linking horror in eesup/src/timers.F
651    o added pkg/runclock: allows user to terminate run based on wall clock
652    o added non-hydrostatic scaling parameter: nh_am2
653    o pkg/my82: futile attempt to make results compiler-independent by adding
654      some "_d 0", etc. no effect.
655    o for mnc output, fill the 'T' coordinate var with myTime and create a
656      separate 'iter' variable for iteration count
657    o pkg/diagnostics:
658      add new capability: output of Global/Regional & per-level statistics ;
659      tested against monitor output (including land & thSIce) on various exp.
660    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
661    
662    checkpoint57h_done
663      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
664      data.diagnostics, data.gchem, data.ptracers) is done.
665    
666    o pkg/diagnostics: prepare for Global/Regional statistics.
667      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
668    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
669      and rename it: DIFFERENT_MULTIPLE
670    
671    checkpoint57h_post
672    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
673    o pkg/diagnostics: change output frequency, now in seconds (instead
674      of Nb of iterations). This requires to change data.diagnostics.
675    checkpoint57h_pre
676    
677    o in mnc, let the user create the output dir if both mnc_outdir_date
678      and mnc_outdir_num are false
679    o add fflags() to pkg/diagnostics which allows one to specify, on a
680      per-file basis, the file precision [default behavior is unchanged]
681    o added diagnostics to pkg/kpp, including computation of mixed layer
682      depth based on a temperature/density criterion
683    o updated verification/natl_box to test the new pkg/kpp diagnostics
684    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
685    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
686    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
687      not mnc -- this mistake was found by JMC and is now corrected
688    
689    checkpoint57g_post
690    o add Adams-Bashforth 3rd Order time stepping:
691      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
692      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
693    checkpoint57g_pre
694    
695    o make lambda[Theta,Salt]ClimRelax spatially varying
696      (default remains spatially uniform constant based on tau)
697    o added new control variables
698      * init. uVel, vVel, etanN
699      * lambda[Theta,Salt]ClimRelax
700    o separate masks used for ctrl_pack/unpack 'from write_grid' output
701      (suggested by G. Forget)
702    
703    checkpoint57f_post
704    o add parameter "baseTime" = model base time = time at iteration zero
705      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
706      account for baseTime shift
707    o move Coriolis arrays from PARAMS.h to GRID.h
708    checkpoint57f_pre
709    
710    o mnc-ifying the seaice package
711    o introduced an alternative length scale calculation for use in the limiting
712      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
713    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
714    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
715      as well as grad(vort3).  Made it compatible with both approximate form
716      for the cubed sphere and full form of these gradients.  Added flag
717      useFullLeith to select between approximate and full form.  
718    o add "d0" in getcon.F to reduce differences between compilers/platforms
719      update output.txt of exp. fizhi-gridalt-hs
720    o change port_rand funtion to allow to set the seed.
721    o fix obscure MNC bug involving conversion between reals and integers
722      - it caused no problems with certain (eg. gcc, ifc) compilers but the
723        new version is now more standards-compliant
724    o adjoint-related modifications
725      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
726      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
727      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
728    
729    checkpoint57e_post
730    o Adding eddy stress controls a la Ferreira et al.
731    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
732    
733    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
734      update output.txt of exp. fizhi-gridalt-hs
735    o add more "Z" dimensions and associated coordinate vars to MNC
736    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
737    o parameter calendarDumps: when set, approximate months (30-31 days) and years
738      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
739      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
740      months and years.  Requires pkg/cal.
741    o diagnostics: add pickup functionality
742      - off by default for backwards compatibility
743      - current version only uses MDSIO -- MNC will be added
744    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
745    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
746    
747    checkpoint57d_post
748    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
749    o modify verification/ideal_2D_oce so that it tests the creation of mnc
750      output from the diagnostics package
751    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
752    o make genmake2 more portable by using ".$FS" instead of ".f" for more
753      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
754    o add coordinate variables to the MNC output from the diagnostics package
755    o change MNC-flags default value: true when useMNC=TRUE
756    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
757      the ability (off by default) to read the grid information using MNC
758    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
759    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
760    o do snap-shot diagnostics at the middle of the time-interval (instead of
761      at the end).
762    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
763      new test for AIM with thSIce + slab-ocean
764    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
765    o move state variable diagnostics to the beginning of the time step ;
766      (note: still needs some work specially for snap-shot diagnostics)
767      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
768    
769    checkpoint57c_post
770    o Change testing option (-ieee) to get closer agreement between g77 & ifort
771    o generate new output.txt files on faulks with g77 & the new -ieee option
772    checkpoint57c_pre
773    
774    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
775      update output.txt of exp. global_ocean.90x40x15
776    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
777      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
778    o add saltFlux(+File) forcing capability with periodicExternalForcing
779    o allow to use pkg diagnostics for GM-Redi & ThSIce output
780    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
781    o improvements for the MNC output from DIAGNOSTICS:
782      - correct handling of the unlimitied dimension
783      - all dims now have associated coordinate variables
784      - variables located at U, V, and Corner ("Z") points are now written
785        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
786        *all* data points are output
787    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
788    o added pkg/seaice/seaice_monitor.F
789    o mdsio_readfield.F can now read files visible only to master MPI process.
790    o pkg/seaice: some test code for ice-modified ocean stress
791    o exf_getffields interpolation defaults to bilinear for all scalar forcing
792      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
793      spurious negative numbers for precipitation and humidity.  Will cause
794      some small numerical differences for integrations using pkg/exf/exf_interp.F.
795    o pkg/ctrl/
796      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
797        May be enabled via doPackDiag
798      *  introduce z-scaling of
799         + gradient (doZscalePack) and
800         + control (doZscaleUnpack)
801    o pkg/mdsio/
802      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
803      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
804    
805    checkpoint57b_post
806    o simplify options in diagnostics_fill arguments (remove weird combinations)
807    o fix MNC coordinate variables so that they now contain per-face index
808      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
809      general, EXCH2 grids are only aligned to a "local" coordinate system
810    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
811    o Implement instantaneous output within pkg diagnostics:
812      setting a negative frequency in data.diagnostics produces
813     "snap-shot" output (as opposed to time-average if freq > 0)
814    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
815      NOTE: change ptracer diagnostics name: use 2 characters to work with
816            more than 9 tracers. Add also diagnostics of advect & diffus flux.
817    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
818      becomes the coordinate variable for the 'T' dimension
819    o add CF-style coordinate variables to MNC
820      - just a first cut:  numbers are meaningless on the cubesphere and
821        missing along the T axis but otherwise it works!
822    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
823    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
824    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
825      this is based directly on what the model compute, so that the content of
826      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
827    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
828    o clean up build options files for SunOS, in particular
829      - remove -traditional from xmakedepend
830      - change -xarch=v9 to -xarch=native for f77
831      - restore use of make (not gmake)
832      - add CC=gcc if using g77
833    o changes per discussion of AM, JMC, & EH3 today:
834      - move redundant "grid" variables out of "state" -- in preparation of
835        creating proper CF-style coordinate variables and in recognition
836        that any/all grid variables can be easily copied (eg. w/NCO) from
837        the grid files into any of the other NetCDF files
838      - *always* output grid variables with MDSIO (this will eventually be
839        changed)
840      - output MNC grid file if useMNC is true
841    o every instance of _END_MASTER() has been found and replaced with
842      _END_MASTER( myThid ) in order to satisfy certain picky Sun
843      preprocessors
844    o re-arrange diagnostics pkg initialisation:
845     - allow each package to extend the available diagnostics list
846     - add some checking and fix small problems (multi-threaded, ...)
847     - new S/R diagnostics_fill (replace fill_diagnostics):
848       look through the short list of active diag. (instead of the long list)
849       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
850    
851    checkpoint57a_post
852    o this set of changes restores TAMC compatibility
853      tested for global_ocean.90x40x15 adjoint on trough
854      (what a pain)
855    
856    checkpoint57a_pre
857    o some modifs in tools/build_options for sunos
858    o call ctrl_pack for ctrl at end for optimcycle=0
859    
860    checkpoint57
861    o add horizontal bi-harmonic viscosity for vertical velocity
862      - new parameter viscA4W (defaults to viscA4)
863      - affects only non-hydrostatic code
864      - to be done: no-slip lateral boundary conditions
865    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
866    o implement Implicit Vertical advection for pTracers
867    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
868      (implemented also for implicit vertical diffusion & advection)
869    o OBCS: extend application of tracer open boundary conditions
870      to a strip beyond the boundary of width Olx/Oly
871    o add call monitor to TAF set of required calls (flow directives)
872      and include in natl_box_adjoint
873    o untangle a few ifdefs related to cost, ctrl, autodiff
874      untangel a few ALLOW_ECCO_OPTIMIZATION
875    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
876      (theta2, salt2 in ecco_cost_weights)
877    
878    checkpoint56c_post
879    o OBCS as control variables
880      - update ctrl_ad_diff.list, obcs_ad_diff.list
881      - remove balance of obcs controls from default
882      - fix index bug nobcs in ctrl_init
883      - fix dummy fields filen in ctrl_pack
884      - add dummy weights for obcs
885    o lsopt: comment out fort.94 output
886    o optim:
887      - remove unnecessary header files
888      - adjusted namelists
889      - add xerbla.F to Makefile
890    o exf:
891      - multiple modifications of exf_check_range
892      - unit change in exf_init_runoff from [m/year] to [m/s]
893    o mdsio:
894      - i/o-vector change debugLevel from debLevA to debLevB
895    
896    checkpoint56b_post
897    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
898      is called from DO_THE_MODEL_IO
899      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
900      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
901      - clean up PTRACERS_WRITE_TIMEAVE a little
902    o add another verification experiment that tests both the cfc-pkg and
903      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
904      reactive tendencies treated inline with regular timestepping
905    o testreport previously did a lousy job of comparing small numbers, so
906      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
907      implemented in the little c-progam tmp_cmpnum.c which is embedded in
908      testreport.
909    o ptracers_monitor: bug fix for MPI
910    
911    checkpoint56a_post
912    o GCHEM: finish reorganizating the package
913      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
914        (introduces another 3D-array for each passive tracer, but only if
915        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
916        gchemTendency is not needed because the timestep is done separately)
917      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
918      - GCHEM is now---more or less cleanly---separate from PTRACERS
919      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
920        so clear to me how that should be done in a general way.
921    o CFC: improve formatting of output in CFC_ATMOS
922    o PTRACERS:
923      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
924        that ALL experiments with ptracers enable can be checked. This makes
925        GCHEM_MONITOR obsolete.
926      - include a runtime parameter PTRACERS_monitorFreq that defaults to
927        monitorFreq
928      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
929    o add PTRACERS (PTR0[1-5]) to testreport output
930    o exf_check_range:
931      * default changed to .TRUE.
932      * will check values for niter0 if debLevA, every timestep if debLevB
933      * STOP in exf_check_range if 'out of range'
934      * range chosen generous to allow for potential extema
935      TBD: a version with stricter range
936           permitted range would be runtime parameters
937    o GMredi:
938      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
939      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
940      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
941    o GCHEM:
942      - move call to GCHEM_FORCING_SEP, so that it is now called before
943        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
944      - introduced a useGCHEM runtime flag and applied it everywhere.
945      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
946        this flag is now only visible within GCHEM-pkg routines.
947      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
948        be replaced by a 3D array that is computed before thermodynamics; for
949        this, the tracer ID iTracer had to be included into the parameter list
950        of ptracers_forcing
951      - set up forward_step to call gchem_forcing, that will replace
952        gchem_forcing_int in ptracers_forcing
953      - cleaning up
954    o small cleaning of exch2: remove files that are also in eesupp/src
955    
956    checkpoint56
957    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
958    o mnc: cleanup "full" files--fixes out-of-memory problem
959    o ECCO-GODAE
960      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
961      * fully merged and updated from SIO code
962        windstress sign change affects
963        - exf_inscal_[u/v]stress
964        - sign of xx_tau[u/v] adjustments
965        - signs in cost_scat
966      * ctrl_get_gen: avoid update of tau[u/v] for first few days
967      * natl_box_adjoint updated and compressed
968      * 2-level checkpoint switch added
969        (tested in EXP. 1 of natl_box_adjoint)
970      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
971    o SVD
972      * first complete, non-hacked version for SVD calculations
973      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
974        performed via direct access files admtlm_vector.it????
975        (via ctrl_[un]pack)
976      * optimcycle is used for ARPACK iteration counter
977        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
978      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
979        and add linear transforms where necessary
980      * controls are initial/final SST, SSS (can be extended; need to check
981        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
982    o mdsio: filename info to both stderr, stdout
983    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
984      from sign change
985    
986    checkpoint55j_post
987    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
988      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
989    o add consistent build directories and .cvsignore files to verification
990    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
991    o make all subroutines 30 or less characters in length for certain older
992      compilers to work (a thorough search only turns up two routines in
993      pkg/ptracers)
994    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
995      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
996    
997    checkpoint55i_post
998    o change arrays for total vertical diffusivity (2.D if explicit,
999      3.D if implicit) ; each ptracer uses its own background value.
1000    o added mnc/NetCDF output capability to ocn_compon_interf
1001      - added bits to verification/cpl_aim+ocn so that it can run on
1002        ITRDA and other clusters without the mpirun "-wd" option
1003    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1004      configuration
1005    o give MNC the ability to create additional files rather than
1006      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1007      - the default is just less than 2GB which is a practical limit
1008        on many systems
1009    o Compute the non-local term using either KPP vertical diffusivity (=default)
1010       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1011    
1012    checkpoint55h_post
1013    o add verification test "vermix"
1014    o remove all the *_ioinc flags and replace with the single global
1015      outputTypesInclusive flag
1016    o allow to set a vertical profile of vertical diffusivity for T & S
1017    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1018    o useMNC moved from data.mnc to data.pkg
1019    
1020    checkpoint55g_post
1021    o Renaming carbon AD experiments to comply with testreport conventions
1022    o Updating adjoint of Held-Suarez hs94.1x64x5
1023    o Fixing directives for non-ECCO forward_step, after ECCO directives
1024      have been fixed to avoid recomp. of do_oceanic_phys
1025      Works well for global_ocean.90x40x15,
1026      but recomp. issue remains for carbon
1027    o Updating adjoint output for natl_box_adjoint after
1028      pkg/ecco has been modified (see taga c55d_post)
1029    
1030    checkpoint55f_post
1031    o rename to timeave_init_fixed
1032    
1033    checkpoint55e_post
1034    o some delicate re-shuffle of store directives to avoid one
1035      extra call of do_oceanic_physics
1036      affects ecco_the_main_loop.F, do_oceanic_physics.F
1037      checkpoint_lev1_directives.h
1038    o NB: this may break global_ocean adjoint temporarily,
1039      but it is clear how to fix it. Will do later, need this now.
1040    
1041    checkpoint55d_post
1042    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1043    o ecco_cost_weights is modified to 1x1 runs
1044    o modifs to allow observations to be read in as
1045      single file or yearly files
1046    o enable to read exf forcing fields as either
1047      single file or yearly files (flag useExfYearlyFields)
1048    checkpoint55d_pre
1049    
1050    o switch between 2-level and 3-level checkpointing
1051    o add ability of MNC to write local and "partial" (eg. 2D slices where
1052      the full 3D field is never actually stored) arrays to NetCDF files
1053      with the correct (that is, the complete multi-dimensional) set of
1054      array indicies
1055      - used in mom_vecinv() to write the diagFreq output
1056      - tested (demonstrated) in verification/aim.5l_cs
1057    o further mnc-ification
1058      - add verification/lab_sea to the list with mnc setups
1059      - fix undefined mnc v-names in cd_code
1060      - add kpp to mnc output (both snapshot and timeave)
1061    o non-hydrostatic code
1062      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1063        in calc_gw.F
1064      - defaults to viscAh
1065      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1066        friction or Leith) in non-hydrostatic mode, as long as there is
1067        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1068    o pkg/cost
1069      extend simple cost functions to treat time mean quantities
1070      (T,U,V) via cost_accumulate_state from cost_tile
1071    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1072        be 2 times larger than the minimum size the advection scheme requires.
1073        now get a perfect conservation of salt in advect_cs test-exp (updated)
1074    o GGL90 (Gaspar's TKE mixed layer)
1075      - add horizontal diffusion of TKE, requires exchanges in
1076        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1077        default. In OPA there is no horizontal diffusion of TKE but the
1078        mixing coefficients are computed from a horizontal average of TKE of
1079        6 points or so. I think that diffusion has a little more physical
1080        justification.
1081      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1082        was in vain)
1083      - mask tke-variable in ggl90_init
1084    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1085    o fix biharmonic diffusion on CS-grid.
1086    o more obcs stuff
1087      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1088        for reading boundary values. This routine is called from
1089        obcs_prescribe_read
1090      - updated obcs_check
1091      - changed sponge layer relaxation parameter units for days to seconds
1092      - turned off sponge layer by default
1093      - changed argument list of OBCS_CALC to myTime+deltaTclock
1094      - fixed about 35 bugs in obcs_external_fields_load
1095    
1096    checkpoint55c_post
1097    o obcs stuff
1098      - new runtime flags useOBCSprescribe, useOBCSbalance
1099      - re-arranged obcs_calc
1100      - moved exf_getobcs to obcs_prescibe_read
1101        obcs_prescibe_read is called after ORLANSKI stuff
1102        and independent of it (executable can contain all).
1103      - updated obcs_check
1104      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1105        These may be necessary only if tangential velocities are
1106        prescribed at OB, not sure, needs testing.
1107    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1108      which simplifies the calls and passes the ifc check-bounds test
1109    
1110    checkpoint55b_post
1111    o add a 2D scalar, Z location, exchange_2 routine.
1112    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1113      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1114      affects advect_cs results (for the wrong reason): update output.txt
1115    o use a more standard discretization for biharmonic viscosity ;
1116     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1117      affects results of dome set-up: update output.txt
1118    o fix gad_advection.F (CubedSphere part), back to version 1.23
1119    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1120    
1121    checkpoint55a_post
1122    o merged code to
1123      * prescribe/read time-dependent open boundaries
1124        (works in conjunction with exf, cal)
1125      * sponge layer code for open boundaries
1126      * each boundary N/S/E/W now has its own CPP option
1127        (healthy for the adjoint)
1128    
1129    checkpoint55
1130    o up-to-date adjoint of previous breaks
1131      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1132      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1133      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1134      - carbon: * remove tr1-related adjoint verification
1135                * add ptracer as control variable
1136    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1137      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1138    
1139    checkpoint54f_post
1140    o in verification/carbin/ remove experiment related to
1141      ALLOW_PASSIVE_TRACER (array tr1 etc)
1142      code_ad/ input_ad/ results_ad
1143    
1144    o add two new packages
1145      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1146        + subject to optimization (memory)
1147      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1148        + subject to reordering (many GOTOs in the original code)
1149        + so far opps is called for every (i,j) point, and then operates in
1150          the vertical; one may want to reorder the scheme in order operate in
1151          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1152          fields)
1153    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1154      - all verification tests compile and run with linux_ia32_g77
1155      - defaults are compatible with current input files--nothing
1156        should change if you were not previously using MNC
1157      - MNC output has been added in numerous places (eg. timeave)
1158        but there are still a few writes not yet do-able with MNC
1159        (this is in progress)
1160      - flags now allow for either/or/both use of MDSIO and MNC and
1161        documentation will soon follow
1162      - numerous small formatting cleanups for ProTeX
1163    o add version info (via BUILD_INFO.h) to MNC and stdout
1164    
1165    checkpoint54e_post
1166    o add two new packages
1167      - pp81 (Packanowski and Philander, 1981), Richardson number and
1168        stratification dependent mixing
1169      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1170      - these scheme operate in a similar manner as KPP (without ghat, of
1171        course), however there is only one diffusivity that is used for both
1172        temperature and salinity (and passive tracers)ç
1173    o add offline package
1174    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1175      provided by Stephanie Dutkiewicz
1176    o genmake2: add ability to search for C compilers and cleanup test output
1177      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1178    
1179    checkpoint54d_post
1180    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1181    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1182      leading to additional shift by 5 days each year of integration
1183       (i.e. leading to considerable offset over the years)
1184    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1185    o start with no AB and no initial filtering (staggerTimeStep):
1186      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1187    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1188      (external loading & cpl import/export stay in forward_step.F)
1189    o update coupling interface to work with new staggerTimeStep
1190    o change MDSIO ptracers_pickup.
1191    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1192    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1193    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1194    
1195    checkpoint54c_post
1196    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1197      this affects (truncation error) output.txt of test-exp:
1198       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1199    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1200    o change Qnet to always be the net heat flux, (+upward).
1201      affects (truncation error) output of natl_box exp.: updated
1202    o define the max number of passive tracers in PTRACERS_SIZE.h
1203    o start to test mnc routinely in exp0
1204    o add sea-ice loading (sIceLoad) as a new forcing field.
1205    
1206    checkpoint54b_post
1207    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1208       impressive on Altix and Opteron systems)
1209    o diagnostics can now write NetCDF files through the mnc package
1210    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1211    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1212    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1213      affects (truncation error) output of lab_sea & natl_box exp.: updated
1214    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1215    
1216    checkpoint54a_post
1217    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1218    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1219    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1220    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1221      + internal_wave (shift in writing cg2d_ini_res)
1222    checkpoint54a_pre
1223    
1224    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1225      - modified verification/lab_sea and natl_box_adjoint accordingly
1226    
1227    checkpoint54
1228    checkpoint53g_post
1229    o prepare splitting of thermodynamics: store convect.counter in common block
1230    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1231      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1232    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1233    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1234    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1235    o restore adjointability
1236    
1237    checkpoint53f_post
1238    o modifications that affect AIM experiment results (update output.txt):
1239      - no advection of S at top interface Nr (pkg/generic_advdiff)
1240      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1241    o AIM pkg:
1242      - include stability function into surf.Flux derivative relative to Tsurf
1243      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1244    
1245    checkpoint53e_post
1246    o merged cylindrical coord configuration
1247    o added rotating_tank experiment
1248    checkpoint53e_pre
1249    
1250    checkpoint53d_post
1251    o faulks upgraded: re-generate output.txt that have changed:
1252       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1253    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1254    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1255    o added Sadourny discretization of Coriolis
1256      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1257      - re-enabled use of omega3 (useAbsVorticity)
1258    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1259      vector-invariant equations
1260      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1261    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1262      hopefully without new bugs
1263      - still to do: biharmonic friction for non-hydrostatic w
1264    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1265    o regenerated output for global_ocean_ebm (using -ieee)
1266    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1267      of mom_common/
1268      - simple re-arrangement of instructions within computing loop
1269    checkpoint53d_pre
1270    
1271    checkpoint53c_post
1272    o new version of coupler for AIM+thSIce and Ocean models
1273     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1274     - land: change Evaporation of snow
1275     - aim with thSIce: fix bug in snow-precip.
1276    o changes to calc_gw.F
1277     - bug fix for w^2 term near the bottom boundary
1278     - (hopefully) improve the lateral slip boundary condtions for use with
1279        partial/looped cells
1280      - because the bug fix changes two verification experiments anyway (exp5
1281        and plume on slope), change the lateral boundary condition from half slip
1282        to the value of no_slip_sides
1283    o ebm package wasnt quite up to the parallel task. Fixed that.
1284    o Adjoint of EBM package + verification
1285      * TLM OK
1286      * ADM not sufficient accuracy yet (needs further testing)
1287    
1288    checkpoint53b_post
1289    o Commiting new energy balance model to repository
1290      * package is pkg/ebm
1291      * verif. is verification/global_ocean_ebm
1292      * references are in ebm_driver.F
1293    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1294    C        Global thermohaline circulation. Part I:
1295    C        Sensitivity to atmospheric moisture transport.
1296    C        J. Climate 12(1), 71-82
1297    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1298    C        Global thermohaline circulation. Part II:
1299    C        Sensitivity with interactive transport.
1300    C        J. Climate 12(1), 83-91
1301    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1302    C        Destabilization of the thermohaline circulation
1303    C        by atmospheric eddy transports.
1304    C        J. Climate 7(12), 1870-1882
1305    o Will need long integration testing.
1306    checkpoint53b_pre
1307    
1308    o created pkg/mom_common in preparation for variable viscosity code
1309    o renamed and split ini_mnc_io
1310    o pkg/land: only liquid water can diffuse or run-off
1311    o AIM using land: soil wetness availability account for snow
1312    o added printMapIncludesZeros to EEPARMS namelist
1313    
1314    checkpoint53a_post
1315    o restore TAMC compatiility for exf_constants.h
1316      (no usage of _d in .h)
1317    o Additional storing in KPP in an attempt to fix
1318      TAMC problem with adjoint of KPP code.
1319      (no success...)
1320      Identical code works fine with TAF.
1321    o Fixed verification/natl_box_adjoint experiments.
1322      Initial conditions for Experiments 4 and 5 are now
1323      set to "SEAICE_initialHEFF=0", which is more reasonable,
1324      and hence gives results closer to that of Experiment 2.
1325      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1326    
1327    checkpoint53
1328    o stable checkpoint with up to date adjoint
1329      TLM tests only run for 1st grdchk at the moment. Its unclear if
1330      this is a code problem or a problem with resetting code for g_
1331      variables that is being autogenerated wrong.
1332      Otherwise:
1333       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1334       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1335         are both still in chaos following their security messes.
1336    
1337    checkpoint52n_post
1338    o various build (mostly genmake2) changes including:
1339      - ability to build/run more easily within Cygwin and MacOS X
1340      - more complicated Makefiles with a stronger dependence on Gnu Make
1341    o pkg/seaice modifications
1342      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1343        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1344        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1345      - changed proxy for geostrophic velocity and updated
1346        verification/lab_sea/results/* accordingly
1347      - removed ADI dynamic solver from pkg/seaice
1348      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1349        they caused a segmentation fault under certain circumstances
1350      - removed unused field WATR
1351    o bug fix in exf-package:
1352      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1353         now reflect that.
1354    o small fixes in the cal-package:
1355      - set reference date to first of January for the 'model'-calendar
1356      - failing of cal_CheckDate in cal_FullDate now actually results in a
1357        warning
1358    o small modifications in exf-package to increase flexibility:
1359      - change climtempfreeze from a constant to a runtime parameter that
1360        is specified in data.exf_clim (default = -1.9)
1361      - introduce runtime parameter windstressmax (default = 2.0) that is
1362        specified in data.exf
1363    o fix in pkg/thsice:
1364      - update Evap (Tsf changes) to be consistent with Latent heat flux
1365      - maintain snow precipitation unchanged (even if Tsf >=0).
1366     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1367    
1368    checkpoint52m_post
1369    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1370      this does not change any of the results, because myIter=0 in swfrac always
1371      lead to jwtype=2 (the default anyway), but the call makes little sense
1372      as a default
1373    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1374    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1375      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1376    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1377    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1378    o extending useSingleCpuIO option to work with new exch2 I/O format
1379      - old-style, missing-tile I/O is still accessible by defining CPP
1380        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1381    o monitor package can write to NetCDF files and/or STDOUT
1382    o fix re-definition bug in MNC_GRID_INIT_ALL()
1383    o doc/api_reference added
1384      - a framework for building an API Reference Manual using all
1385        the "protex" comments embedded in the code
1386      - see pkg/generic_advdiff, pkg/mnc for examples
1387    o MNC:
1388      - make myThid the last argument for all subroutines
1389      - new default for the grid files: NO halos
1390      - add useMNC and other run-time flags
1391      - separate per-file-group handling of the unlimited dimension
1392      - early initialization of MNC w/ flags read at the eeboot stage
1393        and lookup tables set in initialize_fixed
1394      - write all MNC output to a freshly-created directory
1395    o thermodynamics sea-ice (thsice) is now tested with testreport.
1396    o test exp. advect_cs: use the standard cs32 grid ; update output.
1397    o Added functionality to grdchk:
1398      pick global i,j,k position (or nearest wet) where to perform check.
1399    
1400    checkpoint52l_post
1401    o new land formulation:
1402      a) use ground enthalpy as prognostic variable to ensure exact
1403         energy conservation.
1404      b) account for water temperature and for latent heat of freezing
1405         in all processes (rain, run-off, ground storage)
1406      c) compute surface and ground temperature implicitly.
1407    o aim_v23 modification for new land model:
1408      a) Treat separately land / ocean / sea-ice surface fluxes
1409         to allow implicit computation of land & sea-ice surface temp.
1410      b) add snow precipitation.
1411    checkpoint52l_pre
1412    
1413    o fix problem (when 1 tile is empty) in min/max monitor.
1414    o fix bug in timeAve (u,vZetatave in common block)
1415    o no restoring terms under ice for pkg/seaice
1416    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1417    o bug fix for pkg/seaice pickups
1418    o change MNC call locations and add coordinate attributes
1419    o mask vorticity at the corner ; affects global_ocean.cs output
1420    o fix ini_curvilinear_grid ; test CS experiments with mpi
1421    o aim.5l_cs: modify sea-ice fraction input file ; update output
1422    o exf: Adding simple range check routine for exf fields after read
1423    
1424    checkpoint52k_post
1425    o removed top-level directory "diags"
1426      - we migrated these functions to pkg/timeave a long time ago
1427    o fixed bug introduced in pkg/monitor
1428    o accuracy ctrlprec = 32 insuffient for gradient checks using
1429      averaged fields (I/O via cost_averages)
1430      -> use ctrl.h in active_file*.F to control I/O precision.
1431    o paramter list of CALL ADTHE_MAIN_LOOP
1432    o added initial do_the_model_io to ecco
1433    o set all ...Freq to zero after cost_final
1434      taveFreq, dumpFreq, pChkptFreq
1435    o MAIN and ECCO differentiability restored
1436    
1437    checkpoint52j_post
1438    o fix nchklev in tamc.h for global_ocean...
1439    o Bringing flow and store directives up-to-date
1440    o Really weird thing!
1441      call do_the_model_io from the_main_loop with parameters
1442      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1443      TAF places a faulty re-call of initialise_varia
1444      after cost_final call which should not be there!
1445    checkpoint52j_pre
1446    
1447    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1448      error messages
1449    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1450    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1451      debug output
1452    o modfied mdsio_writefield.F to handle non-global files under exch2
1453    o update AIM Cubed-Sphere exp (aim.5l_cs):
1454      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1455    o update AIM Equatorial Channel exp:
1456      use standard aim_v23 pkg and change the SST fields to be more realistic.
1457    o globalFile now works with exch2
1458    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1459      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1460    o limit timeave output for hi-res integrations
1461    
1462    checkpoint52i_post
1463    o removed CPP_EEOPTIONS.h from verification/*/code
1464    o updated the tiling for global_ocean_pressure
1465    checkpoint52i_pre
1466    
1467    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1468      the old pkg/aim).
1469    
1470    checkpoint52h_pre
1471    o shortened offending lines in exch2_send_rx?.template
1472    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1473    o genmake2: add build & execute test for NetCDF code
1474    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1475      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1476    o added useSingleCPUIO flag to monitor.F and mon_out.F
1477    o added temporary hack for sea-ice dynamics on the cube:
1478      metric terms are ignored and it is assumed that
1479      there is no sea-ice on cube faces 1, 2, 4, and 5.
1480    
1481    checkpoint52f_post
1482    o added exch2 cube routines to pkg/exch2
1483    o modified hs94.cs-32x32x5 to use it
1484    o added new grid files to hs94.cs-32x32x5
1485    checkpoint52f_pre
1486    
1487    checkpoint52e_post
1488    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1489      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1490    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1491      to work with implicit vertical advection and AB ;
1492    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1493    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1494     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1495    checkpoint52e_pre
1496    
1497    o fix bug in impldiff when Nr=1 or Nr=2.
1498    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1499    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1500    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1501      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1502    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1503    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1504    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1505    
1506    checkpoint52d_post
1507    o re-tiled many expts to allow comparison in multi-processor mode
1508      - updated output accordingly
1509      - changed hs94.128x64x5 to use intial T from file rather than use the
1510        random number generator
1511    o add infrastructure in model routines for fizhi and gridalt packages
1512    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1513    o changes to permit hi-res, cubed-sphere, configuration
1514      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1515      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1516      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1517        of surface winds for the cube
1518      (A verification experiment, based on global_ocean.cs32x15, but with
1519       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1520       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1521       complete with example surface forcing files and matlab scripts to look
1522       at the output and compare it with that of global_ocean.cs32x15.)
1523    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1524       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1525       to conform to the common rule.
1526    o check-in the first version of the coupler + interfaces for multi-components
1527       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1528       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1529       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1530       - ocean and atmos. share the same horizontal grid (no interpolation).
1531       - exchanges between component and coupler is done in forward_step
1532    o new verification experiment, cpl_aim+ocn:
1533       coupled ocean - AIM atmosphere on cs32 grid.
1534    
1535    checkpoint52d_pre
1536    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1537    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1538    
1539    checkpoint52c_post
1540    o Fixing OPTIONS files for use of exf:
1541      - ALLOW_ECCO not needed
1542      - ECCO_CPPOPTIONS.h should not be included from
1543        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1544        as has been the case in the past
1545      - All cal/exf related options are currently set in
1546        single header file. Should remain so until we
1547        agree on a consistent new policy.
1548    o Removed all CPP options for cal package.
1549      cal has no more CPP options.
1550    o modified STOREs in GAD_ADVECTION
1551    o corrected key comp. for passkey
1552    
1553    checkpoint52b_post
1554    o new version: "thsice" of thermodynamic sea-ice pkg:
1555     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1556     - modify fluxes but do not change theta directly;
1557     - light cleaning of bulk_force pkg (still needed with thsice).
1558     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1559       + output_thsice.txt to test thsice & bulk_force pkgs.
1560    o put back grid & coriolis monitor output.
1561    checkpoint52b_pre
1562    
1563    o call "do_the_model_io" at the beginning (=> dump initial state)
1564    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1565    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1566      (need info on NUMBER_OF_PTRACERS)
1567    o missing PTRACERS headers in some routines
1568    o default tamc.h in pkg/autodiff supposed to crash
1569      to ensure proper customization
1570    
1571    checkpoint52a_post
1572    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1573      - moved surfaceTendencyTice from pkg/seaice to main code
1574      - subroutine FREEZE_SURFACE now limits only surface temperature
1575        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1576        => new output.txt for global_ocean.cs32x15 & global_with_exf
1577      - keep the old version of FREEZE for backward compatibility;
1578        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1579      - corresponding modifs for TAF directives
1580    o added surface flux output variables to TIMEAVE_STATVARS
1581    o time-averaged output for pkg/ptracers
1582    o fix problem with ECCO-related divided adjoint
1583      snapshot file was missing some ad-variables,
1584      but no warning issued by TAF
1585    
1586    checkpoint52a_pre
1587    o some bug fixes for #undef REAL4_IS_SLOW
1588    
1589    checkpoint52 = ecco_c52_e35
1590    o after testing adjoints of checkpoint51u_post
1591    
1592    checkpoint51u_post
1593    o this is the post-merge tag of the ecco-branch
1594      (needs another clean checkout and re-testing)
1595    o various natl_box_adjoint configs and results
1596      but no input fields
1597    o obcs adjoint not yet merged!
1598    o adding ECCO global 1x1 and 2x2 degree configs
1599    o updated/extended some store directives for seaice
1600    o pkg/ecco now containes ecco-specific part of cost function
1601    o top level routines the_main_loop, forward_step
1602      supersede those in model/src/
1603      previous input data.cost now in data.ecco
1604      (new namelist ecco_cost_nml)
1605    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1606    
1607    checkpoint51t_post
1608    o this is the pre-merge tag of the ecco-branch
1609    
1610    checkpoint51s_post
1611    o cleanup: removed various obsolete #define-s
1612    o pkg/grdchk
1613      - renamed 'ph-grd 3' to 'grad-res'
1614      - merged from ecco-branch
1615        (remaining bug fixes for obcs gradient checks)
1616      - additional high-precision output for testreport
1617        (grep for 'precision_grdchk_result')
1618    
1619    checkpoint51r_post
1620    o cleaned up or removed CPP_OPTIONS.h files
1621    o updated results for some of the tests to reflect the new
1622      optfiles (-ieee: -O0 instead of -O3)
1623    
1624    checkpoint51q_post
1625    o cd_code:
1626      - moved cd_scheme.F -> cd_code_scheme.F
1627      - separate read_checkpoint from cd_code_ini_vars.F
1628      - separated cd_code part from write_checkpoint
1629      - updated AD_SOURCE, generated .flow
1630      - added CD_CODE_VARS.h to the_main_loop
1631      - Moving cd_code specific store dir.s to pkg/cd_code
1632    o ctrl package totally restructured
1633      - pack/unpack now optional and decoupled from
1634        xx_/adxx_ I/O
1635      - ctrl_pack/unpack cleaned
1636        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1637      - confined inclusion of AD_CONFIG.h to where necessary.
1638    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1639    
1640    checkpoint51p_post
1641    o create initial cd_code package
1642      - WARNING: the initialization of fields within packages
1643        is broken because INI_FIELDS (where READ_CHECKPOINT is
1644        called) is called *before* PACKAGES_INIT_VARIABLES.
1645        This seems to be backwards since
1646        1) its important to initially zero the entire field including
1647           the "halo" region
1648        2) zeroing needs to be done *before* reading pickup info
1649           and the pickup call might or might not happen in any
1650           particular run
1651      - this needs an overhaul for R2
1652    o cleanup verification/*/code/GMREDI_OPTIONS.h
1653    o cleanup testreport
1654    
1655    checkpoint51o_post
1656    o bringing AD-related verif's up to date with genmake2
1657      - carbon/
1658      - global_ocean.90x40x15/
1659      - hs.94.1x64x5/
1660      - (front_relax/ )
1661    o (more) consistent directory structure for AD-related verif.'s
1662    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1663    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1664    o bug fix in find_alpha.F for MDJWF:
1665      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1666        change rho -> rho-rhoConst
1667      - replace call find_rho to find_rhonum
1668    o initialisation of rFlx extended to full array (required by TAF)
1669      and shifted to thermodynamics
1670    o removed PTRACERS.h in ptracers routine
1671    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1672    o Correcting initialisations for fVerU, fVerV.
1673    o helping TAF to recognize dependency on kUp for
1674      fVerU, fVerV
1675    o Replacing delZ by delR in pkg/ctrl/
1676    checkpoint51o_pre
1677    
1678    o undid all of cp51 pending some cleanups and discussion
1679    o added the [#include "AD_CONFIG.h"] statement to all files that need
1680       it for adjoint/tl #defines
1681     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1682     o removed tools/genmake since it no longer works
1683    
1684    checkpoint51n_post
1685    o modifications to make FREEZE flux visible to pkg/kpp
1686      - moved surfaceTendencyTice from pkg/seaice to main code
1687      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1688      - subroutine FREEZE now limits only surface temperature
1689        (this means new output.txt for global_ocean.90x40x15,
1690         global_ocean.cs32x15, and global_with_exf)
1691    o added surface flux output variables to TIMEAVE_STATVARS
1692    
1693    checkpoint51n_pre
1694    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1695    o added [#include "AD_CONFIG.h"] to all files that use the following
1696      defines:
1697      - ALLOW_ADJOINT_RUN
1698      - ALLOW_TANGENTLINEAR_RUN
1699      - ALLOW_ECCO_OPTIMIZATION
1700    
1701    checkpoint51m_post
1702    o incorporating changes to get TAMC/TAF working in genmake2
1703      - added new TAMC/TAF targets to the Makefile
1704      - various cleanups related to package handling
1705      - these changes should have no impact on the forward model
1706    
1707    checkpoint51l_post
1708    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1709     - faster algorithm for cal_addtime.F
1710     - higher precision arithmetic, where needed
1711     - pkg/exf *startdate variables changed from calendar date to
1712       model integration time
1713    
1714    checkpoint51l_pre
1715    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1716    o enable to apply restoring on S & T only in a latitude band.
1717    o update output (external_forcing_surf modif. change truncation errors)
1718       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1719    
1720    checkpoint51k_post
1721    o change default to: useNHMTerms=.FALSE.
1722     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1723       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1724     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1725        exp1, ideal_2D_oce
1726     - change data file of oceanic exp (leave the results unchanged for now)
1727       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1728    o set gravitySign automatically according to the vertical coordinate used
1729      (and change sign: back to "logical" value: +1 when R increases downward)
1730    o added an include barrier to the default CPP_OPTIONS.h and
1731      removed the #include "PACKAGES_CONFIG.h" from it
1732    o fix a bug in mom_fluxform (from chk51j_post)
1733    
1734    checkpoint51j_post
1735    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1736    o adjusted some flow directives (dynamics, thermodynamics)
1737    o added cubed-sphere case to test cost function
1738    o heckpoint_lev?_directives.h now include
1739      pkg-specific directives, whenever those are enabled.
1740    o Moving pkg-specific flow directives to corresponding pkg
1741      Moving pkg-specific differentiation list to corresponding pkg
1742      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1743      ---> conventions are
1744           - pkg_ad.flow
1745           - pkg_ad_diff.list
1746           - pkg_ad_check_lev?_dir.h
1747    
1748    checkpoint51i_post
1749    o merge of the branch-genmake2
1750      - knowingly breaks the older genmake
1751      - automatic generation of all ALLOW_${PKG_NAME} defines
1752      - new testreport supersedes older testscript
1753    o large number of package inclusion and header cleanups
1754    checkpoint51i_pre
1755    
1756    o new output for adjoin of global ocean vector invariant
1757    o fix for checkpoint of thermodynamic seaice and bulk_force
1758    o Steph gchem various cleanups
1759    
1760    checkpoint 51h_pre
1761    o fixed some single quotes
1762    o modify gchem pkg to be more versatile
1763    o modifications to clean up dic pkg
1764    o add pkg/cfc
1765    
1766    checkpoint51g_post
1767    o provide links for ARPACK and ADM*TLM
1768    o start removing verification/vero/
1769    o update AD-related stuff
1770      (in particular some IF-statements in model/src/ routines)
1771    o adding to verification/global_ocean.90x40x15/ adjoint of
1772      vector invariant setup
1773    
1774    checkpoint51f_post
1775    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1776    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1777      of tracer Green's fucntions for ocean inversion project.
1778    
1779    checkpoint51f_pre
1780    o Added on-the-fly spatial interpolation capability
1781        "USE_EXF_INTERPOLATION" to pkg/exf.
1782      - This is a temporary Cartesian-grid hack until
1783        the super-duper ESMF coupler becomes available.
1784      - See verification/global_with_exf/README for usage example.
1785      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1786        flags and modified pkg/seaice accordingly.
1787    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1788        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1789        non-local transport term.
1790    
1791    checkpoint51e_post
1792    o pkg/mom_vecinv:
1793      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1794      - add time-ave diagnostic of vorticity advection.
1795    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1796    o atmospheric geopotential: - include water vapor effect;
1797                                - use p^kappa in p* scaling.
1798    o land pkg: read initial state from files.
1799    o AIM : add stratospheric drag in the upper level
1800    
1801    checkpoint51d_post
1802    o change function ILNBLNK (=> last non-blank char.) to return zero
1803      (instead of the string length) when the string. char is empty
1804    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1805    o modif's to restore TAMC compatibility
1806      - avoid "_d" constructs in PARAMETER declarations
1807      - avoid interrupting lines by comment lines
1808    o Use cluster local disks for purely local I/O
1809      vs. globally visible disks needed for ctrl stuff
1810      (merged from ecco-branch)
1811      - new active_file_loc... and mdsio_..._loc routines
1812      - affected packages: autodiff, ctrl, grdchk, mdsio
1813    
1814    checkpoint51c_post
1815    o introducing integer flag debugLevel
1816      - debLevZero: suppress all output
1817      - debLevA: standard
1818      - debLevB: equivalent to current debugMode=.TRUE.
1819    o introducing pathname variable mdsioLocalDir for mdsio
1820      that can be specified at runtime
1821      (relevant for cluster I/O to local disk)
1822    `
1823    >>>checkpoint51b_post
1824    adjoint of ptracers
1825    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1826    o extended state in checkpoint_lev?, etc.
1827    o alternative ctrl/cost with tr1 or ptracer
1828    o new comlev1_bibj_ptracers
1829    o new ptracers.flow
1830    o made ptracers_forcing same as external_forcing_s
1831    o added verification for adjoint with ptracers
1832      - adm. grdchk fail so far
1833      - tlm. grdchk OK
1834      - checked tapelev/comlev recomputations: OK
1835    <<<checkpoint51b_pre
1836    
1837    checkpoint51a_post
1838    o added code for biogeochemistry package
1839      - new pkgs: dic, gchem
1840      - new subroutine in ptracers
1841    o modify code for biogeo packages
1842      - in model/src and pkg/ptracers
1843    
1844    checkpoint51
1845    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1846      - autodiff, ctrl, exf, grdchk, seaice
1847      kept separate packages
1848      - cost, ecco, obcs
1849    o updating verification/internal_wave, verification/lab_sea
1850      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1851    
1852    checkpoint50i_post
1853    o Preparing next differentiable checkpoint and sync
1854      of MAIN vs. ecco-branch
1855      - 1st step: this one is differentiable
1856      - 2nd step: next(! not this) checkpoint will have updated packages
1857                  from ecco-branch)
1858    
1859    checkpoint50h_post
1860    o new package "land": provide surface BC for AIM.
1861    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1862    o AIM: use true log-P extrapolation for near surface temp (= as in
1863        F.Molteni paper) ; update aim.5l_cs output.
1864    o New variable in PARM03 for more flexible pickups
1865    o somewhat cleaned package initialisation sequence for
1866      ctrl/ cost/ ecco/ in packages_... routines
1867    
1868    checkpoint50g_post
1869    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1870      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1871      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1872        made the default because of faster convergence than ADI
1873    
1874    checkpoint50f_post
1875    o exf totally restructured
1876      - replaced all exf_set_ routines by one generic exf_set_gen.F
1877        and made sure it's still differentiable
1878      - split exf_getffields.F into new exf_bulkformulae.F
1879      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1880      - updated adjoint/makefile and relevant verif. accordingly
1881    
1882    checkpoint50f_pre
1883     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1884          + change Evap over land. (update aim.5l_cs output)
1885     o added missing .cvsignores and made uniform across expts
1886     o changed configuration of tidal_basin_2d expt
1887     o added pkg/debug functions for tracing code in fatal crashes
1888     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1889     o new fn in pkg/monitor to stop model if solution grows too big
1890     o removed lots of single quotes from comments
1891    
1892    checkpoint50e_post
1893    o make KPP work with PTRACERS
1894     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1895       nearly a copy of kpp_transport_s
1896     - there is no analogue to SurfaceTendencyS, so I have to use
1897       gPtr(of the surface layer) instead
1898    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1899    checkpoint50e_pre
1900    
1901    checkpoint50d_post
1902    o change kpp output from multiple-record state files to single-record state
1903      files analogous to write_state.F
1904    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1905      analogous to the cg2d-related output.
1906    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1907      so that writing to internal file fn (with length 512) fails.
1908    checkpoint50d_pre
1909    
1910    checkpoint50c_post
1911    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1912    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1913    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1914    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1915    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1916    
1917    checkpoint50c_pre
1918    Merging from release1_p13:
1919    o bug fix for pkg/seaice dynamic solver
1920    o Added SEAICE_initialHEFF to pkg/seaice
1921    
1922    checkpoint50b_post
1923    o store u*,v* in gU,V instead of in guNm1,gvNm1
1924    o in order to put the momForcing out of the Adams-Bashforth:
1925      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1926      to timestep.F
1927    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1928    o re-generate output for highly sensitive test-exp:
1929       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1930    
1931    checkpoint50b_pre
1932    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1933    o corrected CPP option mismatch in exf_Bulk... functions for case
1934      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1935    
1936    checkpoint50a_post
1937    o Bug fix for merging between c50 and KPP.
1938      ikey was passed from thermodynamics to kpp_calc via
1939      common block rather than being recomputed in kpp_calc,
1940      in contradiction with new key itdkey.
1941      New key ikppkey created, and tamc.h headers updated.
1942    
1943    checkpoint50
1944    - 2nd step of merge with ecco-branch:
1945      merge changes in ecco-branch back into main trunk
1946    - bug fix in find_alpha
1947    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1948    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1949    - merged some sliced AD support routines
1950    
1951    checkpoint49
1952    merged from ecco-branch:
1953    o exf:
1954      - Enable initialisation of forcing fields to constant
1955        (runtime) values.
1956      - in exf_getffields.F
1957        Reduce i-/j-loop to interior domain, discarding overlaps.
1958        That also fixes wrong TAF-key computations for key_1, key_2
1959        with bulf formulae.
1960      - exf_init.F modify #ifdef for exf_init_evap
1961      - exf_getffieldrec.F, ctrl_getrec.F
1962        The following INT-usages are not safe:
1963          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1964          fldcount = int(fldsecs/fldperiod) + 1
1965        and were modified.
1966    o autodiff: checkpoint_lev...
1967      - updated storing for bulk formulae (some arrays were missing)
1968      - added state for seaice package
1969      - synchronized with main branch
1970    o DIVA:
1971      Modif.s in
1972      - the_main_loop.F
1973      - the_model_main.F
1974      and added cost_final_restore.F cost_final_store.F
1975      o With these changes, it is possible to fully separate
1976        the first forward run to compute the cost function (mdthe_main_loop)
1977        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1978        into separate model executions.
1979        This enables better tuning of DIVA to given queue sizes.
1980      o Loss of cost function value in consecutive DIVA runs is
1981        fixed by storing to 'costfinal' file.
1982      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1983        beginning/end of adjoint integration is accounted for.
1984      The current changes apply to TAF-1.4.26.
1985      TAF has one remaining bug, requiring one manual change
1986      (see MITgcm manual).
1987    o cal: synchronized between MAIN and ecco-branch
1988    
1989    checkpoint48i_post
1990    o Changes to restore differentiability of code w.r.t. previous tag
1991      (mostly adding new routines to make list and replacing
1992      pressure by totPhiHyd).
1993    o Updated and merged grdchk package
1994      - has both ADM and TLM checks
1995      - works for single- and multi-proc.
1996      - output cleaned
1997      - worked successfully for parallel DIVA
1998    o genmake:
1999      - Adding -platform=SP4
2000      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2001    o Modif. for DIVA:
2002      ctrl_unpack should not be called in intermediate DIVA interval.
2003      (similar thing would apply for active files such as
2004      tbar, sbar, psbar, which should not be reinitialised;
2005      only relevant for ecco-branch)
2006    
2007    checkpoint48h_post
2008    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2009    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2010    o Added SEAICE_initialHEFF to pkg/seaice
2011    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2012    
2013    checkpoint48g_post
2014    --- EOS:
2015    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2016      store total Potential in totPhyHyd for diagnostics & EOS.
2017    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2018    --- Pressure/geopotential gradient:
2019    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2020    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2021      ( changes results of global_ocean_pressure )
2022    o NLFS + z-coord.: add eta*Rho' contribution.
2023    o accurate phiHyd when using interface-W at the middle between 2 centers
2024     ( changes results of ideal_2D_oce )
2025    o includes r* 2nd term in potential gradient.
2026    
2027    checkpoint48f_post
2028    Merging from release1_p12:
2029    o Modifications for using pkg/exf with pkg/seaice
2030      - improved description of the various forcing configurations
2031      - added basic radiation bulk formulae to pkg/exf
2032      - units/sign fix for evap computation in exf_getffields.F
2033      - updated verification/global_with_exf/results/output.txt
2034    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2035      (SBO) core products, including oceanic mass, center-of-mass,
2036      angular, and bottom pressure (see pkg/sbo/README.sbo).
2037    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2038      to avoid negative values in shallow regions.
2039      - updated verification/natl_box/results/output.txt
2040      - updated verification/lab_sea/results/output.txt
2041    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2042    o Added useSingleCpuIO option (see PARAMS.h).
2043    o Updated useSingleCpuIO option in mdsio_writefield.F to
2044      work with multi-field files, e.g., for single-file pickup.
2045    o pkg/seaice:
2046      - bug fix in growth.F: QNET for no shortwave case
2047      - added HeffFile for specifying initial sea-ice thickness
2048      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2049    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2050      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2051    o pkg/seaice:
2052      - adjoint-friendly modifications
2053      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2054    
2055    checkpoint48e_post
2056    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2057    o dynamics: change definition of computational domain & adapt mom_fluxform
2058      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2059    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2060        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2061        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2062        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2063        inverted_barometer solid-body.cs-32x32x1
2064      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2065    
2066    checkpoint48d_post
2067    o in preparation for r*:
2068     a) use pre-computed gradient of hydrostatic potential:
2069        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2070     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2071        => affects results of glob_oce_pressure (different truncation error)  
2072      update output.txt of ideal_2D_oce & global_ocean_pressure
2073    
2074    checkpoint48d_pre
2075    o in preparation for r*:
2076      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2077      pass the 2 comp. of the grad. as arguments to momentum S/R.
2078      but for the moment, only used if it does not change the results.
2079    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2080    
2081    checkpoint48c_post
2082    Modifications in treatment of initial flux forcing controls
2083    to avoid extra storing of flux fields.
2084    
2085    checkpoint48c_pre
2086    o Added tidal_basin_2d experiment (currently 1D!)
2087    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2088    
2089  checkpoint48b_post  checkpoint48b_post
2090  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
2091   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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