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revision 1.194 by dimitri, Thu Oct 23 07:14:48 2003 UTC revision 1.720 by jmc, Mon Aug 28 15:33:37 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    checkpoint58o_post
8    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
9      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
10    o change controling S/R for writing pickup file (new S/R do_write_pickup)
11      and clean-up reading/writing of pickup files.
12    o fix local version of read/write pickup (NH part) in rotating_tank/code
13    o simplify EXCH interface:
14     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
15     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
16    o added the regrid package
17    o shelfice:
18     - add a simple boundary layer scheme to reduce noise
19     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
20    
21    checkpoint58n_post
22    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
23       local variable (not in common block).
24    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
25      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
26      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
27        to work with SingleCpuIO.
28    o add "_d 0" to real constant of pkg/cfc subroutines ;
29       update exp. cfc_exemple & tutorial_cfc_offline output files.
30    o multi-threading and IO:
31      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
32        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
33      - barrier before and after reading.
34      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
35      - avoid using MDS_WRITELOCAL for LAND pkg output.
36      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
37        common-block variables ; Allows multi-threading with master-thread IO.
38    o change default MAX_NO_THREADS from 32 to 4 ;
39      and stop cleanly when MAX_NO_THREADS is too small.
40    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
41    
42    checkpoint58m_post
43    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
44       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
45    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
46       keep global_ocean.90x40x15 (for AD testing) with former secondary test
47       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
48    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
49        add MITgcm_tutorials (= code + all the tutorials)
50    o ecco, option to compute cost for total ssh (mean+anom)
51    o consistent with addition of ptracer and ssh in pkg/profiles
52    o profiles: adding ptracer and ssh
53    o testreport: change multi-test output-file name
54      (from output.txt.{name} to output.{name}.txt)
55    o profiles: now ok for mutli-tiles case
56    o seaice: add 4 parameters for different advection schemes for area,
57      (effective) seaice thickness, enthalphy, and snow height. Their default
58      is the standard parameter SEAICEadvScheme
59    o calc_gw:
60     - add cosFacU in zonal viscous flux (harmonic.visc.).
61     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
62       of tutorial_plume_on_slope.
63    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
64    o calc_gw: true flux-form, account for horizontal grid spacing.
65      update rotating_tank results, but not plume_on_slope (affected at
66      truncation level, 11 digits).
67    
68    checkpoint58l_post
69    o calc_gw:
70     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
71     - remove side-drag for now (need to fix it); update plume_on_slope results.
72     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
73    o commit code to make SST/SSS weights spatially variable
74      (based on either variable in-situ or variable initial T/S weights)
75    o pkg/ecco:
76      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
77        now based on horizontally varying weights wthetaLev, wsaltLev
78      * cost_averagesflags now returns year indices in addition to day, month
79      * sflux balance is performed on annual basis
80        (sflxumm, sfluxmm2, bal_sfluxmm)
81      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
82        including separate counting and multipliers
83    o pkg/rbcs
84      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
85    
86    checkpoint58k_post
87    o testreport:
88     - always build in dir. "build" (if not there, mkdir build instead of building
89       & running in input)
90     - run in dir run (if it exists), in build otherwise.
91     - call prepare_run (if input/prepare_run exists)
92     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
93    o pkg/exf modifications to interpolation and rotation routines for more
94       reasonable treatment of North Pole singularity: for tracers North Pole
95       value is set to northernmost zonal-mean value, for zonal velocity it is
96       set to zero, and for meridional velocity it is set to northernmost value.
97    o pkg/exf/exf_check_range.F
98     - add tile index to diagnostics and move stop statement to the very
99       end of the routine.
100    o pkg/diagnostics: (diagnostics_main_init.F)
101      define title of isomorphic variables according to the current config.
102    o pkg/thsice with pkg/seaice dynamics:
103    - fix domain of computation (interior only, required for exf) and do exchanges
104    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
105    o towards a standard way of dealing with multi-threading in MONITOR
106      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
107    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
108       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
109    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
110    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
111    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
112       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
113    o tracer advection:
114     - clean-up and simplify calc_common_factors.F
115     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
116       advection subroutine (but still not used within DST advection S/R)
117    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
118    
119    checkpoint58j_post
120    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
121      from file (collects calls previously in FORWARD_STEP)
122    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
123    o adjoint store dir. adjusted accordingly
124    o genmake2
125      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
126    
127    checkpoint58i_post
128    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
129      on wind stress (SEAICEstressFactor defaults to 1.)
130    o Total number of Timers is finite (<=40): comment out 2 non-essential one
131      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
132    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
133      on CS-grid: no longer loosing mass.
134    o exf & curvilinear-grid: no longer modify longitude xC & xG.
135    o pkg/ggl90: fix sloppy output and fix a bug
136    o pkg/seaice: added SEAICEuseEVPpickup parameter
137      - Set to false in order to start EVP solver with
138        non-EVP pickup files when using SEAICEuseEVP
139      - fix sign error in diffusion in seaice_calc_rhs
140    
141    checkpoint58h_post
142    * Modifications for bottom topography control
143      o replace hFacC by _hFacC at various places
144      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
145      o add non-self-adjoint cg2d_nsa
146      o update autodiff support routines
147      o re-initialise hfac after ctrl_depth_ini
148      o works for 5x5 box, doesnt work for global_ocean.90x40x15
149    * Adding verification for 5x5 box (4-layer) bottom topography control
150    
151    checkpoint58g_post
152    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
153       used for mean seasonal cycle, mean diurnal cycle); add an example
154       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
155    o pkg/ggl90:
156      - add parameter (minimum surface kinetic energy)
157      - fix bug (avoiding division by zero)
158    o couple pkg/thsice to pkg/seaice:
159      - modify advection in seaice to accomodate new scalar fields to be advected
160      - only muliDimAdection scheme work with seaice/thsice
161      - mapping of thsice-variables to seaice-variables, back and forth
162      - does not break the verification experiments, but does not give the
163        desired results either
164    o pkg/seaice
165      - make (default) second order advection a bit less confusing?
166    
167    checkpoint58f_post
168    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
169      to pkg/seaice):
170      - new routines thsice_map_exf and thsice_get_exf provide the interface
171      - add an additional formal parameter to thsice_solve4temp
172    o pkg/exf:
173      - add new fields wspeed, snowprecip (to be able to couple to thsice)
174      - correct Stefan-Boltzmann constant
175      - new parameter for longwave surface emittance
176      - separate some stuff from exf_bulkformulae into new routines  
177        exf_radiation, exf_wind
178      - add new parameters and constants: longwave emissivity for ocean, ice
179        and snow, evaporation parameters over ice
180      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
181        either wind from stress or stress from wind
182    o pkg/thSIce:
183    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
184    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
185       and THSICE_CALC_THICKN
186    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
187    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
188      to make debugging easier.
189    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
190    o pkg/bulk_force:
191      - clean-up comments and parameters ;
192      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
193    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
194      generate new output for test-experiment: aim.5l_cs.thSI
195    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
196      testreport accordingly
197    
198    checkpoint58e_post
199    o SEAICE_CGRID adjoint done
200    o R_STAR adjoint implemented.
201      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
202      * need to sort out init. of h0facc, etc.
203    o Make pkg/profile fully independent of ecco,cost, etc. stuff
204      to be able to use it in pure forward.
205    
206    checkpoint58d_post
207    o upgrade simple test-experiment to tutorial example:
208     step.1: duplicate the experiment and (step.2) will remove the old copy.
209      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
210      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
211      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
212      tutorial_global_oce_biogeo    <- copy of dic_example
213      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
214      tutorial_plume_on_slope       <- copy of plume_on_slope
215      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
216      tutorial_global_oce_optim     <- empty for now (David ?)
217      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
218     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
219    o correct a sign problem in cost_scat.F
220    o obcs and ptracers: fix boundary conditions for advections schemes
221      with larger stencil
222    o thsice adjoint: start
223    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
224      completeness
225    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
226      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
227    o ptracers adjoint:
228      * avoid extensive recomputatations
229      * fix missing re-init. of gptr (missed by TAF)
230    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
231      me to turn off the excessive output to STDOUT that this package produces
232    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
233      and add those terms in Vector-Invariant formulation.
234    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
235      if the control period (xx_hfluxperiod etc) is 0
236    o in profiles pkg, clean routines and fix details
237    o in ecco pkg, reading ssh data:
238      fix problem in case the model does not start at iter0=0
239    o fix mnc-pickup/restart for ptracers
240    o new package prifiles:
241      code to compute profile-based cost by Gael Forget
242      (modifs in ecco, ctrl, autodiff)
243    o Benign bug fix in initialization (spotted by M. Mazloff) of
244      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
245    
246    checkpoint58c_post
247    o adjoint: finish NLFS adjoint and provide reference output in
248      verification/global_ocean.90x40x15/results_ad_nlfs
249    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
250      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
251      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
252      with SEAICE_CGRID defined.
253    o move calendarDumps from "data" to "data.cal" and clean-up the code
254      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
255    o add useEXF & useCAL flags (for now, set in hard-coded way)
256    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
257      (were missing in NH mode, and wrong in quasihydrostatic mode).
258      waiting for Chris updated version of calc_gw to add those CALLs.
259    o fix bug in quasihydrostatic S/R ;
260      add a test for this option: global_ocean.90x40x15.qshyd
261    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
262      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
263    o add on/off flag useOffLine for package OFFLINE
264    o seaice:
265      - modify advection so that it works also on the C-grid
266      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
267        problem in multi-tile runs with C-grid
268      - add flags for clipping ice velocities and/or masking solver forcing
269      - fix drag (ocean on ice) formulation and a bug that caused noise in the
270        C-grid solver
271      - added a few comments to seaice_diffusion.F
272      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
273        are now exclusive)
274      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
275        required re-ordering the code a little:
276       + make DAIRN global variable (defined in SEAICE)
277       + move computation of the viscosities eta and zeta into a new separate
278         routine (because I need to recompute them in seaice_ocean_stress.F)
279    
280    checkpoint58b_post
281    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
282      update output.txt of exp. aim.5l_cs.thSI
283    o various mnc cleanups and improvements:
284      + shrink lookup tables by factor of ~4
285      + better error reporting when running out of lookup space
286      + able to handle longer path/file names (up to 500 chars)
287    o adjoint:
288      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
289      - TBD: "hidden" mom_vecinv recomp. in dynamics
290    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
291     (allow to differentiate between forcing components using new integer flags:
292      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
293     and add new flag to put Dissipation tendency out of Adams-Bashforth.
294    o ecco
295      - enable trend removal from SSH anomaly obs.
296    o adjoint
297      - a fix for PmEpR when #undef EXACT_CONSERV
298      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
299      - try to fix "hidden" recomp. in forward_step for NLFS
300        (NLFS seems broken sometimes after I checked it in)
301    o seaice:
302     - add c-grid version of the dynamic solver:
303       + three new routines that are the c-grid substitute lsr, dynsolver
304         and ostres
305       + put a few fields that were local to dynsolver into global common
306         blocks, so that I can move the computation of stresses etc into
307         seaice_lsr (saves coding but may break the adjoint).
308     - replace more hardwired parameters by runtime parameters
309     - add ice masks that mask the rhs of the implicit solvers where there
310       is no ice (commented out in seaice_dynsolver, because i am not sure
311       if this works properly), eventually this should replace the clipping
312       of ice velocities in seaice_dynsolver to +/-40cm/s.
313    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
314      include it only where its needed
315    o move balancing of fluxes before the call of external_forcing_surf
316    o seaice:
317      - correct units of turning angles (now they are really in degrees)
318      - move computation of GWATX/Y out of main routine into dynsolver
319      - initialize GWATX/Y in seaice_init
320    o Apply mask on Fresh-Water flux (needed for SSH forcing).
321      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
322    o seaice: add runtime flags for turning angles (default to zero)
323    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
324      and trend from exf forcing and ctrl control adjustments
325    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
326      (since checkpoint57x_post)
327    o change the default rotation period to 86164.s = the Earth rotation
328    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
329      and based on a reference stratification. Tested within hs94.cs-32x32x5.
330    o seaice advection: add code for choosing between the default (2nd order
331      central differences) and multiDim advection schemes provided by
332      pkg/generic_advdiff
333    o seaice:
334      - removed all references to SEAICE_GRID.h fields from
335        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
336        (cubed-sphere configuration will change a little)
337      - grid computations in seaice_init are obsolete now.
338      - cleaned up code a little so that is easier to read (hopefully).
339      - added new (better?) discretizations of default advection and diffusion
340        (turn on with SEAICEuseFluxForm)
341      - replace 1 in 3d global fields by kSurface in growth.F
342      
343    checkpoint58a_post
344    o seaice:
345      - bug fix in advect.F
346    o shelfice:
347      - separate shelfice load anomaly from pload (breaks with time
348        dependent forcing), => introduce constant field shelficeLoadAnomaly.
349        Its default is 0., but it may be computed more cleverly from (unknown)
350        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
351        done offline. A good approximation of the pressure load anomaly is
352        necessary to avoid large initial adjustment processes underneath
353        deep-reaching shelfice.
354      - small fix in ISOMIP shelfice_thermodynamics
355      - add more sophisticated thermodynamics of Hellmer (1989), this is
356        now the default
357      - give a few constants more intuitive names
358    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
359      if bulk formulae are used in long integration (especially EmPmR). Turn
360      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
361      if balancePrintMean, the imbalance that is substracted is printed to
362      STDOUT.
363    o fix bug (typo) in obcs_apply_eta.F
364    o add a new package shelfice which enables us to model the circulation
365      underneath shelf-ice with draughts of hundreds of meters.
366     - works
367     - to do: + include improved thermodynamics
368              + check whether kSurfC (from model/inc/SURFACE.h) can be used
369                instead of new field kTopC
370              + can we use topoFile, Ro_surf and existing code in ini_depth.F
371                instead of new field R_shelfIce and new code in ini_depth.F
372                and ini_mask_etc.F?
373              + adjust vertical mixing schemes?
374    o seaice pkg:
375     - add a cpp-flag to include a simple formula for a salinity dependent
376       freezing point of sea water at the surface
377     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
378       meridional stresses are now different (and hopefully correct)
379    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
380       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
381       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
382    o pkg/diagnostics: add options and parameters for regional-statistics
383       diagnostics ; define regions by reading a region-mask from a file
384       (might add other options later)
385    o pkg/bulk_force:
386     - add option and parameters to use AIM surface-flux formulae.
387     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
388       others forcing fields (defined in PARM05, parameter file "data") are loaded
389       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
390     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
391     - use the right EXCH call for uwind,vwind (to work on CS-grid).
392     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
393       and parameters (note: calcWindStress replaces .NOT.readwindstress).
394     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
395    
396    checkpoint58
397    o add "--embed-source" option to genmake2 which, when the supporting
398      tools can be compiled (as determined by genmake2) will turn on the
399      embed_files package which then embeds the entire MITgcm source code
400      (*.[fFhc] + Makefile) used for the build within the executable
401      - requested by CNH but off by default
402      - adds a paltry <9MB to the mitgcmuv executable in most cases
403      - only writes the output when useEMBEDSRC in eedata is true
404    o clean up 3-dim. relaxation codes:
405      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
406      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
407      * Thanks to Tom Haine for testing!
408    
409    checkpoint57z_post
410    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
411      affects output (@ truncation level) of exp. plume_on_slope ; updated.
412    o fix the pickup behavior for obcs in combination with ptracers
413    o fix a bug in ptracers_external_fields_load
414    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
415      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
416    o transfered surface NH pressure to eta field (if exactConserv).
417    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
418         and update lab_sea output.txt file.
419    o completing 3-dim. relaxation code: additional term
420         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
421      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
422      * At compile time, in "EXF_OPTIONS.h" set
423          #define  ALLOW_CLIMTEMP_RELAXATION
424          #define  ALLOW_CLIMSALT_RELAXATION
425      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
426          tauThetaClimRelax3Dim = 15552000.0,
427          tauSaltClimRelax3Dim  = 15552000.0,
428      * 3 cases:
429          1) Use a constant-in-time 3-dim. field
430          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
431          3) Real-time relax. to time-evolving prescribed field
432    o Adding Laplacian-type smoothness constraint on
433      initial and boundary (forcing) controls (ic, bc)
434      * enable at compile-time via
435        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
436      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
437      * Absolute scale somewhat unclear so far
438      * no area weighting was included since no other cost term does so far
439    
440    checkpoint57y_post
441    First step for a NLFS adjoint
442    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
443    o new init. routines for calc_r_star, calc_surf_dr
444    o still need to deal with ini_masks_etc
445    o testreport seemed happy
446    checkpoint57y_pre
447    
448    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
449    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
450    o add new offset feature to offline pkg (plus minor cleanup)
451    o cfc fixes for final year of integration
452    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
453      be in GCHEM_OPTIONS).
454    
455    checkpoint57x_post
456    o fix testreport Pb in multiple test experiment.
457    o cleanup our namelist syntax in verification:
458      - make it more F95 standards compliant (some work still needed)
459      - allows the vast majority of our tests to work with gfortran
460    o Non-Hydrostatic:
461     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
462     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
463    o Allow to apply AB on T,S rather than on AB(gT,gS):
464     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
465     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
466       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
467     - need a "clever" read_pickup to restart from the other AB formulation
468    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
469    o remove some unused variables (reduces number of compiler warnings)
470    o adjoint
471      * Disable useVariableViscosity for adjoint for time being
472        (there are a number of extensive recomputations)
473      * Initialize certain variables needed for adjoint
474    
475    checkpoint57w_post
476    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
477                 fix the singleCpuIO RS version of MDSWRITEFIELD
478       and add a WARNING if using globalFiles=T with multi-processors.
479    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
480      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
481    o tracer advection scheme:
482      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
483       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
484       was not very convenient).
485      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
486       (further tests needed for the implicit DST & Flux-Limiter schemes).
487    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
488      and sRef for convenience, handy, when you want to initialize
489      ptracers in a large domain with a constant non-zero value. Also,
490      untangle ptracers_init.F a little.
491    
492    checkpoint57v_post
493    o change dome exp. to use variable viscosity in side-drag terms.
494    o remove all the files from the cfc_offline test since they are now
495      incorporated into tutorial_cfc_offline which has been producing
496      identical results for a few days of testing
497    o add new parameter: sideDragFactor to enable half-slip-side BC
498      and change side-drag S/R to use viscosity from mom_calc_visc
499      (can switch back by setting sideDragFactor=0.); affects results at
500      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
501       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
502    o vorticity & strain are now computed without masking, to account for
503      no-slip-side BC in variable viscosity calculation ; mask is applied
504      anyway later on, before computing advection/coriolis terms.
505    o modify exp4 to test new obcs support for reading from external files
506      and for passive tracers
507    o fix behavior of ptracers_monitor when monitor output is written to a
508      netcdf-file; still not independent of monitor.F (writes in the same
509      file).
510    o change default value of tRef (put a uniform, meaningful value for ocean
511      & atmos) and initialize sRef (was missing, as Martin mentioned).
512    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
513      to be proportional to enstrophy dissipation length.  Thus,
514       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
515      This is now consistent with Smagorinsky and with the manual.
516    
517    checkpoint57u_post
518    o OBCS and PTRACERS: add open boundary support for passive tracers
519      - either use homogenous (pseudo) v.Neumann conditions or prescribe
520        OB-values from file; this is not different from the way theta and salinity
521        are treated
522      - however, Orlanski-radiation conditions are not supported, and the model
523        will stop if you use pTracers and Orlanski at the same time.
524      - beefed up the rountine obcs_external_fields_load: now only those open
525        boundary values are overwritten with values from files for which there
526        are really files, otherwise the OB-fields remain untouched. This makes
527        it possible to use different OBs at different ends of the domain (as
528        with EXF)
529    o reduce number of exch calls in shap_filt (s2).
530    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
531      truncation level) 4/5 MLAdjust test results (11&12 digits match).
532    
533    checkpoint57t_post
534    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
535    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
536      same truncation, independent of the face number: affects affects several
537      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
538    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
539      note that biharmonic viscosity + no-slip was not tested in any experiment.
540    o fix bug in non-linear free-surf side-drag ; generate new output for
541      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
542    o make mnc honor the writeBinaryPrec flag for most kinds of output
543    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
544    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
545      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
546    o add brackets in multi-terms sum to get same truncation, independent of
547      the face number (manage to get exactly same value of gU,gV at the cs-edge)
548      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
549    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
550      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
551      a maximum grid-scale Reynolds number.  Also, changes all length calculations
552      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
553      Suggested values of viscosity parameters found in mom_calc_visc.
554      Many new viscosity diagnostics available.
555    
556    checkpoint57s_post
557    o Add clearing-house for viscosity calculations, mom_calc_visc and
558      correct numerous bugs in LeithD and Smagorinsky discretizations.  
559      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
560      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
561      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
562      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
563      The Strain-Tension form is now called with useStrainTensonVisc=.true.
564      ViscAhStrain and viscAhTension are now retired.
565    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
566    o In response to JMC's bug report, genmake2 now ignores any soft-links
567      that it finds in the *current* directory when searching for files.
568      Soft-links found in any other source directories will still work as
569      they did before.
570    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
571      a C routine to unlimit the stack size
572    o mnc-ify pkg/aim snapshot vars
573    o mnc-ify pkg/land as requested by Daniel
574    o various changes to mnc including:
575      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
576      - output can now be grouped so that all files within a group
577          change the ITER portion of their names in lock-step together
578      - can now read ("global") PER-FACE (in addition to PER-TILE) files
579          and works with both EXCH1 and EXCH2 (but needs more testing)
580      - writing works for all verification test cases w/ g77 on Linux
581    
582    checkpoint57r_post
583    o make MNC variable initialization happen earlier
584    o add diagnostics for (almost) each term of the momentum Eq.
585    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
586    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
587    o remove MINIMAL_TAVE_OUTPUT option ;
588      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
589    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
590      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
591    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
592    o add time-dependent SST, SSS control
593    o cost terms in ecco/ modularized (new cost_generic.F)
594    o cost_averages routines are modularized (new cost_averagesgeneric.F)
595    o new infrastructure for seaice model vs. obs misfits in seaice/
596      * driver from the_main_loop.F is seaice_cost_driver.F
597      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
598      * gradient check in Exp. 6a of natl_box_adjoint/
599    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
600      (see README file)
601    
602    checkpoint57q_post
603    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
604    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
605      - bug was reported by Jean-Michel and Ian Fenty
606    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
607      update exp. cpl_aim+ocn output.
608    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
609      Needed for high-res. runs with large global files
610      to be able to limit tapelev size
611    o Changed some tests for adjoint:
612      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
613      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
614      * global_ocean.90x40x15/ back to default 3-level checkpointing
615    o Modifications to enable scripted COMMON to MODULE conversion
616      * verification/OpenAD/code/ has necessary scripts and description;
617      * converts, compiles and runs successfully;
618    
619    checkpoint57p_post
620    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
621    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
622      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
623    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
624    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
625      (was already the case for dissipation with mom_vecinv,
626       and also the case for grad.PhiHyd when staggered-timeStep)
627      This will allow to put dissipation out-off the AB time-stepping.
628     Unfortunately, affects truncation error. Update output of exp. that "fails"
629      (cg2d matching number) and leave the others for later: front_relax(10),
630      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
631      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
632    
633    checkpoint57o_post
634    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
635      (2) its ready to be documented during the 20050801 DocFest
636    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
637      for ideal_2D_oce and lab_sea on linux_ia32_g77
638    o set to #undef CTRL_SET_OLD_MAXCVARS_30
639      in global1x1_tot/code_seaice_adj to access indices 32, 33
640      (worth another tag)
641    
642    checkpoint57n_post
643    o adding precip control xx_precip 32
644    o adding swflux control xx_swflux 33
645    o Replacing 10 forcing penalty cost routines by 1 generic.
646    o Implementing partitioning in time-mean and variable adjustment
647      for atmos. state.
648    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
649    o in natl_box_adjoint:
650      * updated exp 1 to 10
651        (but does not have time-mean vs. variable split results yet)
652    o updated global1x1/*_seaice_adj/
653      to incorporate latest changes
654    o enable useSingleCpuIO for mdsio vector routines
655      (applies in particular to tapelev I/O)
656    o removed inefficient K-loop in all active_file*control*.F
657    
658    checkpoint57m_post
659    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
660      and advect_cs (use EXCH-2 and standard cs-32 grid files).
661    o pkg/exch2: filling of face-corner halo regions is optional
662      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
663    
664    checkpoint57l_post
665     tag before updating tutorials (pre-release-2)
666    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
667       for output and interpolation of input fields onto model grid)
668    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
669       Affects results of exp. rotating_tank ; update output.txt.
670    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
671          and taking the square quantity and/or using a fraction-weight field.
672    o fix aim_diagnostics_init.F mate numbers.
673    o add mnc output capability to diagnostics/diagstat and update
674      our cvsignore files for the ACSII output generated
675    
676    checkpoint57k_post
677    o lab_sea now uses diagnostics package and provides a suite of
678      new EXF diagnostics output.
679    
680    checkpoint57j_post
681    o exf
682      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
683        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
684        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
685      * extended diagnostics output
686        - now includes all EXF variables
687        - hs, hl moved to common block
688        - separate S/R for diagnostics, called after ctrl vector is added
689        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
690        - EXFqnet contains true Qnet (i.e. includes qsw)
691      * updated verif. lab_sea, global_with_exf
692      * Rearranging hflux (exf_mapfields -> exf_getforcing)
693        to ensure that diagnostics sees a true EXFqnet
694    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
695    o diagnostics pkg: change pointers so that 1 diagnostic can be used
696      several times with different frequencies.
697    o mnc-ify the thsice package as requested by Daniel Enderton
698      - the monitor--MNC output needs work
699      - many attributes need to be added (most are currently blank)
700    o mnc-ify theaim_v23 package as requested by Daniel Enderton
701      - many attributes need to be added (most are currently blank)
702    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
703    o add Sadourny like discretization to the 4th.O vorticity advection scheme
704    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
705      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
706         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
707    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
708     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
709    
710    checkpoint57i_post
711    o Diagnostics package was changed: diagnostic allocation is now deactivated
712      by setting an empty file name in the namelist (used to be by setting 0 frequency)
713    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
714      add 1rst Order upwind vertical Shear.
715    o add a quick fix for A/B checkpointing in OFFLINE mode
716    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
717      end-run around the C/Fortran linking horror in eesup/src/timers.F
718    o added pkg/runclock: allows user to terminate run based on wall clock
719    o added non-hydrostatic scaling parameter: nh_am2
720    o pkg/my82: futile attempt to make results compiler-independent by adding
721      some "_d 0", etc. no effect.
722    o for mnc output, fill the 'T' coordinate var with myTime and create a
723      separate 'iter' variable for iteration count
724    o pkg/diagnostics:
725      add new capability: output of Global/Regional & per-level statistics ;
726      tested against monitor output (including land & thSIce) on various exp.
727    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
728    
729    checkpoint57h_done
730      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
731      data.diagnostics, data.gchem, data.ptracers) is done.
732    
733    o pkg/diagnostics: prepare for Global/Regional statistics.
734      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
735    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
736      and rename it: DIFFERENT_MULTIPLE
737    
738    checkpoint57h_post
739    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
740    o pkg/diagnostics: change output frequency, now in seconds (instead
741      of Nb of iterations). This requires to change data.diagnostics.
742    checkpoint57h_pre
743    
744    o in mnc, let the user create the output dir if both mnc_outdir_date
745      and mnc_outdir_num are false
746    o add fflags() to pkg/diagnostics which allows one to specify, on a
747      per-file basis, the file precision [default behavior is unchanged]
748    o added diagnostics to pkg/kpp, including computation of mixed layer
749      depth based on a temperature/density criterion
750    o updated verification/natl_box to test the new pkg/kpp diagnostics
751    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
752    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
753    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
754      not mnc -- this mistake was found by JMC and is now corrected
755    
756    checkpoint57g_post
757    o add Adams-Bashforth 3rd Order time stepping:
758      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
759      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
760    checkpoint57g_pre
761    
762    o make lambda[Theta,Salt]ClimRelax spatially varying
763      (default remains spatially uniform constant based on tau)
764    o added new control variables
765      * init. uVel, vVel, etanN
766      * lambda[Theta,Salt]ClimRelax
767    o separate masks used for ctrl_pack/unpack 'from write_grid' output
768      (suggested by G. Forget)
769    
770    checkpoint57f_post
771    o add parameter "baseTime" = model base time = time at iteration zero
772      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
773      account for baseTime shift
774    o move Coriolis arrays from PARAMS.h to GRID.h
775    checkpoint57f_pre
776    
777    o mnc-ifying the seaice package
778    o introduced an alternative length scale calculation for use in the limiting
779      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
780    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
781    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
782      as well as grad(vort3).  Made it compatible with both approximate form
783      for the cubed sphere and full form of these gradients.  Added flag
784      useFullLeith to select between approximate and full form.  
785    o add "d0" in getcon.F to reduce differences between compilers/platforms
786      update output.txt of exp. fizhi-gridalt-hs
787    o change port_rand funtion to allow to set the seed.
788    o fix obscure MNC bug involving conversion between reals and integers
789      - it caused no problems with certain (eg. gcc, ifc) compilers but the
790        new version is now more standards-compliant
791    o adjoint-related modifications
792      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
793      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
794      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
795    
796    checkpoint57e_post
797    o Adding eddy stress controls a la Ferreira et al.
798    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
799    
800    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
801      update output.txt of exp. fizhi-gridalt-hs
802    o add more "Z" dimensions and associated coordinate vars to MNC
803    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
804    o parameter calendarDumps: when set, approximate months (30-31 days) and years
805      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
806      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
807      months and years.  Requires pkg/cal.
808    o diagnostics: add pickup functionality
809      - off by default for backwards compatibility
810      - current version only uses MDSIO -- MNC will be added
811    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
812    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
813    
814    checkpoint57d_post
815    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
816    o modify verification/ideal_2D_oce so that it tests the creation of mnc
817      output from the diagnostics package
818    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
819    o make genmake2 more portable by using ".$FS" instead of ".f" for more
820      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
821    o add coordinate variables to the MNC output from the diagnostics package
822    o change MNC-flags default value: true when useMNC=TRUE
823    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
824      the ability (off by default) to read the grid information using MNC
825    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
826    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
827    o do snap-shot diagnostics at the middle of the time-interval (instead of
828      at the end).
829    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
830      new test for AIM with thSIce + slab-ocean
831    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
832    o move state variable diagnostics to the beginning of the time step ;
833      (note: still needs some work specially for snap-shot diagnostics)
834      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
835    
836    checkpoint57c_post
837    o Change testing option (-ieee) to get closer agreement between g77 & ifort
838    o generate new output.txt files on faulks with g77 & the new -ieee option
839    checkpoint57c_pre
840    
841    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
842      update output.txt of exp. global_ocean.90x40x15
843    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
844      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
845    o add saltFlux(+File) forcing capability with periodicExternalForcing
846    o allow to use pkg diagnostics for GM-Redi & ThSIce output
847    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
848    o improvements for the MNC output from DIAGNOSTICS:
849      - correct handling of the unlimitied dimension
850      - all dims now have associated coordinate variables
851      - variables located at U, V, and Corner ("Z") points are now written
852        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
853        *all* data points are output
854    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
855    o added pkg/seaice/seaice_monitor.F
856    o mdsio_readfield.F can now read files visible only to master MPI process.
857    o pkg/seaice: some test code for ice-modified ocean stress
858    o exf_getffields interpolation defaults to bilinear for all scalar forcing
859      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
860      spurious negative numbers for precipitation and humidity.  Will cause
861      some small numerical differences for integrations using pkg/exf/exf_interp.F.
862    o pkg/ctrl/
863      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
864        May be enabled via doPackDiag
865      *  introduce z-scaling of
866         + gradient (doZscalePack) and
867         + control (doZscaleUnpack)
868    o pkg/mdsio/
869      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
870      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
871    
872    checkpoint57b_post
873    o simplify options in diagnostics_fill arguments (remove weird combinations)
874    o fix MNC coordinate variables so that they now contain per-face index
875      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
876      general, EXCH2 grids are only aligned to a "local" coordinate system
877    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
878    o Implement instantaneous output within pkg diagnostics:
879      setting a negative frequency in data.diagnostics produces
880     "snap-shot" output (as opposed to time-average if freq > 0)
881    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
882      NOTE: change ptracer diagnostics name: use 2 characters to work with
883            more than 9 tracers. Add also diagnostics of advect & diffus flux.
884    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
885      becomes the coordinate variable for the 'T' dimension
886    o add CF-style coordinate variables to MNC
887      - just a first cut:  numbers are meaningless on the cubesphere and
888        missing along the T axis but otherwise it works!
889    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
890    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
891    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
892      this is based directly on what the model compute, so that the content of
893      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
894    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
895    o clean up build options files for SunOS, in particular
896      - remove -traditional from xmakedepend
897      - change -xarch=v9 to -xarch=native for f77
898      - restore use of make (not gmake)
899      - add CC=gcc if using g77
900    o changes per discussion of AM, JMC, & EH3 today:
901      - move redundant "grid" variables out of "state" -- in preparation of
902        creating proper CF-style coordinate variables and in recognition
903        that any/all grid variables can be easily copied (eg. w/NCO) from
904        the grid files into any of the other NetCDF files
905      - *always* output grid variables with MDSIO (this will eventually be
906        changed)
907      - output MNC grid file if useMNC is true
908    o every instance of _END_MASTER() has been found and replaced with
909      _END_MASTER( myThid ) in order to satisfy certain picky Sun
910      preprocessors
911    o re-arrange diagnostics pkg initialisation:
912     - allow each package to extend the available diagnostics list
913     - add some checking and fix small problems (multi-threaded, ...)
914     - new S/R diagnostics_fill (replace fill_diagnostics):
915       look through the short list of active diag. (instead of the long list)
916       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
917    
918    checkpoint57a_post
919    o this set of changes restores TAMC compatibility
920      tested for global_ocean.90x40x15 adjoint on trough
921      (what a pain)
922    
923    checkpoint57a_pre
924    o some modifs in tools/build_options for sunos
925    o call ctrl_pack for ctrl at end for optimcycle=0
926    
927    checkpoint57
928    o add horizontal bi-harmonic viscosity for vertical velocity
929      - new parameter viscA4W (defaults to viscA4)
930      - affects only non-hydrostatic code
931      - to be done: no-slip lateral boundary conditions
932    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
933    o implement Implicit Vertical advection for pTracers
934    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
935      (implemented also for implicit vertical diffusion & advection)
936    o OBCS: extend application of tracer open boundary conditions
937      to a strip beyond the boundary of width Olx/Oly
938    o add call monitor to TAF set of required calls (flow directives)
939      and include in natl_box_adjoint
940    o untangle a few ifdefs related to cost, ctrl, autodiff
941      untangel a few ALLOW_ECCO_OPTIMIZATION
942    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
943      (theta2, salt2 in ecco_cost_weights)
944    
945    checkpoint56c_post
946    o OBCS as control variables
947      - update ctrl_ad_diff.list, obcs_ad_diff.list
948      - remove balance of obcs controls from default
949      - fix index bug nobcs in ctrl_init
950      - fix dummy fields filen in ctrl_pack
951      - add dummy weights for obcs
952    o lsopt: comment out fort.94 output
953    o optim:
954      - remove unnecessary header files
955      - adjusted namelists
956      - add xerbla.F to Makefile
957    o exf:
958      - multiple modifications of exf_check_range
959      - unit change in exf_init_runoff from [m/year] to [m/s]
960    o mdsio:
961      - i/o-vector change debugLevel from debLevA to debLevB
962    
963    checkpoint56b_post
964    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
965      is called from DO_THE_MODEL_IO
966      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
967      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
968      - clean up PTRACERS_WRITE_TIMEAVE a little
969    o add another verification experiment that tests both the cfc-pkg and
970      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
971      reactive tendencies treated inline with regular timestepping
972    o testreport previously did a lousy job of comparing small numbers, so
973      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
974      implemented in the little c-progam tmp_cmpnum.c which is embedded in
975      testreport.
976    o ptracers_monitor: bug fix for MPI
977    
978    checkpoint56a_post
979    o GCHEM: finish reorganizating the package
980      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
981        (introduces another 3D-array for each passive tracer, but only if
982        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
983        gchemTendency is not needed because the timestep is done separately)
984      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
985      - GCHEM is now---more or less cleanly---separate from PTRACERS
986      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
987        so clear to me how that should be done in a general way.
988    o CFC: improve formatting of output in CFC_ATMOS
989    o PTRACERS:
990      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
991        that ALL experiments with ptracers enable can be checked. This makes
992        GCHEM_MONITOR obsolete.
993      - include a runtime parameter PTRACERS_monitorFreq that defaults to
994        monitorFreq
995      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
996    o add PTRACERS (PTR0[1-5]) to testreport output
997    o exf_check_range:
998      * default changed to .TRUE.
999      * will check values for niter0 if debLevA, every timestep if debLevB
1000      * STOP in exf_check_range if 'out of range'
1001      * range chosen generous to allow for potential extema
1002      TBD: a version with stricter range
1003           permitted range would be runtime parameters
1004    o GMredi:
1005      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1006      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1007      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1008    o GCHEM:
1009      - move call to GCHEM_FORCING_SEP, so that it is now called before
1010        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1011      - introduced a useGCHEM runtime flag and applied it everywhere.
1012      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1013        this flag is now only visible within GCHEM-pkg routines.
1014      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1015        be replaced by a 3D array that is computed before thermodynamics; for
1016        this, the tracer ID iTracer had to be included into the parameter list
1017        of ptracers_forcing
1018      - set up forward_step to call gchem_forcing, that will replace
1019        gchem_forcing_int in ptracers_forcing
1020      - cleaning up
1021    o small cleaning of exch2: remove files that are also in eesupp/src
1022    
1023    checkpoint56
1024    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1025    o mnc: cleanup "full" files--fixes out-of-memory problem
1026    o ECCO-GODAE
1027      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1028      * fully merged and updated from SIO code
1029        windstress sign change affects
1030        - exf_inscal_[u/v]stress
1031        - sign of xx_tau[u/v] adjustments
1032        - signs in cost_scat
1033      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1034      * natl_box_adjoint updated and compressed
1035      * 2-level checkpoint switch added
1036        (tested in EXP. 1 of natl_box_adjoint)
1037      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1038    o SVD
1039      * first complete, non-hacked version for SVD calculations
1040      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1041        performed via direct access files admtlm_vector.it????
1042        (via ctrl_[un]pack)
1043      * optimcycle is used for ARPACK iteration counter
1044        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1045      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1046        and add linear transforms where necessary
1047      * controls are initial/final SST, SSS (can be extended; need to check
1048        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1049    o mdsio: filename info to both stderr, stdout
1050    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1051      from sign change
1052    
1053    checkpoint55j_post
1054    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1055      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1056    o add consistent build directories and .cvsignore files to verification
1057    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1058    o make all subroutines 30 or less characters in length for certain older
1059      compilers to work (a thorough search only turns up two routines in
1060      pkg/ptracers)
1061    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1062      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1063    
1064    checkpoint55i_post
1065    o change arrays for total vertical diffusivity (2.D if explicit,
1066      3.D if implicit) ; each ptracer uses its own background value.
1067    o added mnc/NetCDF output capability to ocn_compon_interf
1068      - added bits to verification/cpl_aim+ocn so that it can run on
1069        ITRDA and other clusters without the mpirun "-wd" option
1070    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1071      configuration
1072    o give MNC the ability to create additional files rather than
1073      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1074      - the default is just less than 2GB which is a practical limit
1075        on many systems
1076    o Compute the non-local term using either KPP vertical diffusivity (=default)
1077       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1078    
1079    checkpoint55h_post
1080    o add verification test "vermix"
1081    o remove all the *_ioinc flags and replace with the single global
1082      outputTypesInclusive flag
1083    o allow to set a vertical profile of vertical diffusivity for T & S
1084    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1085    o useMNC moved from data.mnc to data.pkg
1086    
1087    checkpoint55g_post
1088    o Renaming carbon AD experiments to comply with testreport conventions
1089    o Updating adjoint of Held-Suarez hs94.1x64x5
1090    o Fixing directives for non-ECCO forward_step, after ECCO directives
1091      have been fixed to avoid recomp. of do_oceanic_phys
1092      Works well for global_ocean.90x40x15,
1093      but recomp. issue remains for carbon
1094    o Updating adjoint output for natl_box_adjoint after
1095      pkg/ecco has been modified (see taga c55d_post)
1096    
1097    checkpoint55f_post
1098    o rename to timeave_init_fixed
1099    
1100    checkpoint55e_post
1101    o some delicate re-shuffle of store directives to avoid one
1102      extra call of do_oceanic_physics
1103      affects ecco_the_main_loop.F, do_oceanic_physics.F
1104      checkpoint_lev1_directives.h
1105    o NB: this may break global_ocean adjoint temporarily,
1106      but it is clear how to fix it. Will do later, need this now.
1107    
1108    checkpoint55d_post
1109    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1110    o ecco_cost_weights is modified to 1x1 runs
1111    o modifs to allow observations to be read in as
1112      single file or yearly files
1113    o enable to read exf forcing fields as either
1114      single file or yearly files (flag useExfYearlyFields)
1115    checkpoint55d_pre
1116    
1117    o switch between 2-level and 3-level checkpointing
1118    o add ability of MNC to write local and "partial" (eg. 2D slices where
1119      the full 3D field is never actually stored) arrays to NetCDF files
1120      with the correct (that is, the complete multi-dimensional) set of
1121      array indicies
1122      - used in mom_vecinv() to write the diagFreq output
1123      - tested (demonstrated) in verification/aim.5l_cs
1124    o further mnc-ification
1125      - add verification/lab_sea to the list with mnc setups
1126      - fix undefined mnc v-names in cd_code
1127      - add kpp to mnc output (both snapshot and timeave)
1128    o non-hydrostatic code
1129      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1130        in calc_gw.F
1131      - defaults to viscAh
1132      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1133        friction or Leith) in non-hydrostatic mode, as long as there is
1134        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1135    o pkg/cost
1136      extend simple cost functions to treat time mean quantities
1137      (T,U,V) via cost_accumulate_state from cost_tile
1138    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1139        be 2 times larger than the minimum size the advection scheme requires.
1140        now get a perfect conservation of salt in advect_cs test-exp (updated)
1141    o GGL90 (Gaspar's TKE mixed layer)
1142      - add horizontal diffusion of TKE, requires exchanges in
1143        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1144        default. In OPA there is no horizontal diffusion of TKE but the
1145        mixing coefficients are computed from a horizontal average of TKE of
1146        6 points or so. I think that diffusion has a little more physical
1147        justification.
1148      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1149        was in vain)
1150      - mask tke-variable in ggl90_init
1151    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1152    o fix biharmonic diffusion on CS-grid.
1153    o more obcs stuff
1154      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1155        for reading boundary values. This routine is called from
1156        obcs_prescribe_read
1157      - updated obcs_check
1158      - changed sponge layer relaxation parameter units for days to seconds
1159      - turned off sponge layer by default
1160      - changed argument list of OBCS_CALC to myTime+deltaTclock
1161      - fixed about 35 bugs in obcs_external_fields_load
1162    
1163    checkpoint55c_post
1164    o obcs stuff
1165      - new runtime flags useOBCSprescribe, useOBCSbalance
1166      - re-arranged obcs_calc
1167      - moved exf_getobcs to obcs_prescibe_read
1168        obcs_prescibe_read is called after ORLANSKI stuff
1169        and independent of it (executable can contain all).
1170      - updated obcs_check
1171      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1172        These may be necessary only if tangential velocities are
1173        prescribed at OB, not sure, needs testing.
1174    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1175      which simplifies the calls and passes the ifc check-bounds test
1176    
1177    checkpoint55b_post
1178    o add a 2D scalar, Z location, exchange_2 routine.
1179    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1180      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1181      affects advect_cs results (for the wrong reason): update output.txt
1182    o use a more standard discretization for biharmonic viscosity ;
1183     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1184      affects results of dome set-up: update output.txt
1185    o fix gad_advection.F (CubedSphere part), back to version 1.23
1186    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1187    
1188    checkpoint55a_post
1189    o merged code to
1190      * prescribe/read time-dependent open boundaries
1191        (works in conjunction with exf, cal)
1192      * sponge layer code for open boundaries
1193      * each boundary N/S/E/W now has its own CPP option
1194        (healthy for the adjoint)
1195    
1196    checkpoint55
1197    o up-to-date adjoint of previous breaks
1198      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1199      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1200      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1201      - carbon: * remove tr1-related adjoint verification
1202                * add ptracer as control variable
1203    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1204      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1205    
1206    checkpoint54f_post
1207    o in verification/carbin/ remove experiment related to
1208      ALLOW_PASSIVE_TRACER (array tr1 etc)
1209      code_ad/ input_ad/ results_ad
1210    
1211    o add two new packages
1212      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1213        + subject to optimization (memory)
1214      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1215        + subject to reordering (many GOTOs in the original code)
1216        + so far opps is called for every (i,j) point, and then operates in
1217          the vertical; one may want to reorder the scheme in order operate in
1218          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1219          fields)
1220    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1221      - all verification tests compile and run with linux_ia32_g77
1222      - defaults are compatible with current input files--nothing
1223        should change if you were not previously using MNC
1224      - MNC output has been added in numerous places (eg. timeave)
1225        but there are still a few writes not yet do-able with MNC
1226        (this is in progress)
1227      - flags now allow for either/or/both use of MDSIO and MNC and
1228        documentation will soon follow
1229      - numerous small formatting cleanups for ProTeX
1230    o add version info (via BUILD_INFO.h) to MNC and stdout
1231    
1232    checkpoint54e_post
1233    o add two new packages
1234      - pp81 (Packanowski and Philander, 1981), Richardson number and
1235        stratification dependent mixing
1236      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1237      - these scheme operate in a similar manner as KPP (without ghat, of
1238        course), however there is only one diffusivity that is used for both
1239        temperature and salinity (and passive tracers)ç
1240    o add offline package
1241    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1242      provided by Stephanie Dutkiewicz
1243    o genmake2: add ability to search for C compilers and cleanup test output
1244      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1245    
1246    checkpoint54d_post
1247    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1248    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1249      leading to additional shift by 5 days each year of integration
1250       (i.e. leading to considerable offset over the years)
1251    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1252    o start with no AB and no initial filtering (staggerTimeStep):
1253      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1254    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1255      (external loading & cpl import/export stay in forward_step.F)
1256    o update coupling interface to work with new staggerTimeStep
1257    o change MDSIO ptracers_pickup.
1258    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1259    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1260    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1261    
1262    checkpoint54c_post
1263    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1264      this affects (truncation error) output.txt of test-exp:
1265       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1266    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1267    o change Qnet to always be the net heat flux, (+upward).
1268      affects (truncation error) output of natl_box exp.: updated
1269    o define the max number of passive tracers in PTRACERS_SIZE.h
1270    o start to test mnc routinely in exp0
1271    o add sea-ice loading (sIceLoad) as a new forcing field.
1272    
1273    checkpoint54b_post
1274    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1275       impressive on Altix and Opteron systems)
1276    o diagnostics can now write NetCDF files through the mnc package
1277    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1278    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1279    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1280      affects (truncation error) output of lab_sea & natl_box exp.: updated
1281    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1282    
1283    checkpoint54a_post
1284    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1285    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1286    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1287    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1288      + internal_wave (shift in writing cg2d_ini_res)
1289    checkpoint54a_pre
1290    
1291    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1292      - modified verification/lab_sea and natl_box_adjoint accordingly
1293    
1294    checkpoint54
1295    checkpoint53g_post
1296    o prepare splitting of thermodynamics: store convect.counter in common block
1297    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1298      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1299    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1300    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1301    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1302    o restore adjointability
1303    
1304    checkpoint53f_post
1305    o modifications that affect AIM experiment results (update output.txt):
1306      - no advection of S at top interface Nr (pkg/generic_advdiff)
1307      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1308    o AIM pkg:
1309      - include stability function into surf.Flux derivative relative to Tsurf
1310      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1311    
1312    checkpoint53e_post
1313    o merged cylindrical coord configuration
1314    o added rotating_tank experiment
1315    checkpoint53e_pre
1316    
1317    checkpoint53d_post
1318    o faulks upgraded: re-generate output.txt that have changed:
1319       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1320    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1321    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1322    o added Sadourny discretization of Coriolis
1323      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1324      - re-enabled use of omega3 (useAbsVorticity)
1325    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1326      vector-invariant equations
1327      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1328    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1329      hopefully without new bugs
1330      - still to do: biharmonic friction for non-hydrostatic w
1331    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1332    o regenerated output for global_ocean_ebm (using -ieee)
1333    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1334      of mom_common/
1335      - simple re-arrangement of instructions within computing loop
1336    checkpoint53d_pre
1337    
1338    checkpoint53c_post
1339    o new version of coupler for AIM+thSIce and Ocean models
1340     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1341     - land: change Evaporation of snow
1342     - aim with thSIce: fix bug in snow-precip.
1343    o changes to calc_gw.F
1344     - bug fix for w^2 term near the bottom boundary
1345     - (hopefully) improve the lateral slip boundary condtions for use with
1346        partial/looped cells
1347      - because the bug fix changes two verification experiments anyway (exp5
1348        and plume on slope), change the lateral boundary condition from half slip
1349        to the value of no_slip_sides
1350    o ebm package wasnt quite up to the parallel task. Fixed that.
1351    o Adjoint of EBM package + verification
1352      * TLM OK
1353      * ADM not sufficient accuracy yet (needs further testing)
1354    
1355    checkpoint53b_post
1356    o Commiting new energy balance model to repository
1357      * package is pkg/ebm
1358      * verif. is verification/global_ocean_ebm
1359      * references are in ebm_driver.F
1360    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1361    C        Global thermohaline circulation. Part I:
1362    C        Sensitivity to atmospheric moisture transport.
1363    C        J. Climate 12(1), 71-82
1364    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1365    C        Global thermohaline circulation. Part II:
1366    C        Sensitivity with interactive transport.
1367    C        J. Climate 12(1), 83-91
1368    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1369    C        Destabilization of the thermohaline circulation
1370    C        by atmospheric eddy transports.
1371    C        J. Climate 7(12), 1870-1882
1372    o Will need long integration testing.
1373    checkpoint53b_pre
1374    
1375    o created pkg/mom_common in preparation for variable viscosity code
1376    o renamed and split ini_mnc_io
1377    o pkg/land: only liquid water can diffuse or run-off
1378    o AIM using land: soil wetness availability account for snow
1379    o added printMapIncludesZeros to EEPARMS namelist
1380    
1381    checkpoint53a_post
1382    o restore TAMC compatiility for exf_constants.h
1383      (no usage of _d in .h)
1384    o Additional storing in KPP in an attempt to fix
1385      TAMC problem with adjoint of KPP code.
1386      (no success...)
1387      Identical code works fine with TAF.
1388    o Fixed verification/natl_box_adjoint experiments.
1389      Initial conditions for Experiments 4 and 5 are now
1390      set to "SEAICE_initialHEFF=0", which is more reasonable,
1391      and hence gives results closer to that of Experiment 2.
1392      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1393    
1394    checkpoint53
1395    o stable checkpoint with up to date adjoint
1396      TLM tests only run for 1st grdchk at the moment. Its unclear if
1397      this is a code problem or a problem with resetting code for g_
1398      variables that is being autogenerated wrong.
1399      Otherwise:
1400       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1401       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1402         are both still in chaos following their security messes.
1403    
1404    checkpoint52n_post
1405    o various build (mostly genmake2) changes including:
1406      - ability to build/run more easily within Cygwin and MacOS X
1407      - more complicated Makefiles with a stronger dependence on Gnu Make
1408    o pkg/seaice modifications
1409      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1410        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1411        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1412      - changed proxy for geostrophic velocity and updated
1413        verification/lab_sea/results/* accordingly
1414      - removed ADI dynamic solver from pkg/seaice
1415      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1416        they caused a segmentation fault under certain circumstances
1417      - removed unused field WATR
1418    o bug fix in exf-package:
1419      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1420         now reflect that.
1421    o small fixes in the cal-package:
1422      - set reference date to first of January for the 'model'-calendar
1423      - failing of cal_CheckDate in cal_FullDate now actually results in a
1424        warning
1425    o small modifications in exf-package to increase flexibility:
1426      - change climtempfreeze from a constant to a runtime parameter that
1427        is specified in data.exf_clim (default = -1.9)
1428      - introduce runtime parameter windstressmax (default = 2.0) that is
1429        specified in data.exf
1430    o fix in pkg/thsice:
1431      - update Evap (Tsf changes) to be consistent with Latent heat flux
1432      - maintain snow precipitation unchanged (even if Tsf >=0).
1433     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1434    
1435    checkpoint52m_post
1436    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1437      this does not change any of the results, because myIter=0 in swfrac always
1438      lead to jwtype=2 (the default anyway), but the call makes little sense
1439      as a default
1440    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1441    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1442      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1443    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1444    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1445    o extending useSingleCpuIO option to work with new exch2 I/O format
1446      - old-style, missing-tile I/O is still accessible by defining CPP
1447        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1448    o monitor package can write to NetCDF files and/or STDOUT
1449    o fix re-definition bug in MNC_GRID_INIT_ALL()
1450    o doc/api_reference added
1451      - a framework for building an API Reference Manual using all
1452        the "protex" comments embedded in the code
1453      - see pkg/generic_advdiff, pkg/mnc for examples
1454    o MNC:
1455      - make myThid the last argument for all subroutines
1456      - new default for the grid files: NO halos
1457      - add useMNC and other run-time flags
1458      - separate per-file-group handling of the unlimited dimension
1459      - early initialization of MNC w/ flags read at the eeboot stage
1460        and lookup tables set in initialize_fixed
1461      - write all MNC output to a freshly-created directory
1462    o thermodynamics sea-ice (thsice) is now tested with testreport.
1463    o test exp. advect_cs: use the standard cs32 grid ; update output.
1464    o Added functionality to grdchk:
1465      pick global i,j,k position (or nearest wet) where to perform check.
1466    
1467    checkpoint52l_post
1468    o new land formulation:
1469      a) use ground enthalpy as prognostic variable to ensure exact
1470         energy conservation.
1471      b) account for water temperature and for latent heat of freezing
1472         in all processes (rain, run-off, ground storage)
1473      c) compute surface and ground temperature implicitly.
1474    o aim_v23 modification for new land model:
1475      a) Treat separately land / ocean / sea-ice surface fluxes
1476         to allow implicit computation of land & sea-ice surface temp.
1477      b) add snow precipitation.
1478    checkpoint52l_pre
1479    
1480    o fix problem (when 1 tile is empty) in min/max monitor.
1481    o fix bug in timeAve (u,vZetatave in common block)
1482    o no restoring terms under ice for pkg/seaice
1483    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1484    o bug fix for pkg/seaice pickups
1485    o change MNC call locations and add coordinate attributes
1486    o mask vorticity at the corner ; affects global_ocean.cs output
1487    o fix ini_curvilinear_grid ; test CS experiments with mpi
1488    o aim.5l_cs: modify sea-ice fraction input file ; update output
1489    o exf: Adding simple range check routine for exf fields after read
1490    
1491    checkpoint52k_post
1492    o removed top-level directory "diags"
1493      - we migrated these functions to pkg/timeave a long time ago
1494    o fixed bug introduced in pkg/monitor
1495    o accuracy ctrlprec = 32 insuffient for gradient checks using
1496      averaged fields (I/O via cost_averages)
1497      -> use ctrl.h in active_file*.F to control I/O precision.
1498    o paramter list of CALL ADTHE_MAIN_LOOP
1499    o added initial do_the_model_io to ecco
1500    o set all ...Freq to zero after cost_final
1501      taveFreq, dumpFreq, pChkptFreq
1502    o MAIN and ECCO differentiability restored
1503    
1504    checkpoint52j_post
1505    o fix nchklev in tamc.h for global_ocean...
1506    o Bringing flow and store directives up-to-date
1507    o Really weird thing!
1508      call do_the_model_io from the_main_loop with parameters
1509      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1510      TAF places a faulty re-call of initialise_varia
1511      after cost_final call which should not be there!
1512    checkpoint52j_pre
1513    
1514    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1515      error messages
1516    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1517    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1518      debug output
1519    o modfied mdsio_writefield.F to handle non-global files under exch2
1520    o update AIM Cubed-Sphere exp (aim.5l_cs):
1521      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1522    o update AIM Equatorial Channel exp:
1523      use standard aim_v23 pkg and change the SST fields to be more realistic.
1524    o globalFile now works with exch2
1525    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1526      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1527    o limit timeave output for hi-res integrations
1528    
1529    checkpoint52i_post
1530    o removed CPP_EEOPTIONS.h from verification/*/code
1531    o updated the tiling for global_ocean_pressure
1532    checkpoint52i_pre
1533    
1534    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1535      the old pkg/aim).
1536    
1537    checkpoint52h_pre
1538    o shortened offending lines in exch2_send_rx?.template
1539    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1540    o genmake2: add build & execute test for NetCDF code
1541    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1542      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1543    o added useSingleCPUIO flag to monitor.F and mon_out.F
1544    o added temporary hack for sea-ice dynamics on the cube:
1545      metric terms are ignored and it is assumed that
1546      there is no sea-ice on cube faces 1, 2, 4, and 5.
1547    
1548    checkpoint52f_post
1549    o added exch2 cube routines to pkg/exch2
1550    o modified hs94.cs-32x32x5 to use it
1551    o added new grid files to hs94.cs-32x32x5
1552    checkpoint52f_pre
1553    
1554    checkpoint52e_post
1555    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1556      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1557    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1558      to work with implicit vertical advection and AB ;
1559    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1560    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1561     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1562    checkpoint52e_pre
1563    
1564    o fix bug in impldiff when Nr=1 or Nr=2.
1565    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1566    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1567    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1568      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1569    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1570    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1571    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1572    
1573    checkpoint52d_post
1574    o re-tiled many expts to allow comparison in multi-processor mode
1575      - updated output accordingly
1576      - changed hs94.128x64x5 to use intial T from file rather than use the
1577        random number generator
1578    o add infrastructure in model routines for fizhi and gridalt packages
1579    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1580    o changes to permit hi-res, cubed-sphere, configuration
1581      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1582      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1583      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1584        of surface winds for the cube
1585      (A verification experiment, based on global_ocean.cs32x15, but with
1586       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1587       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1588       complete with example surface forcing files and matlab scripts to look
1589       at the output and compare it with that of global_ocean.cs32x15.)
1590    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1591       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1592       to conform to the common rule.
1593    o check-in the first version of the coupler + interfaces for multi-components
1594       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1595       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1596       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1597       - ocean and atmos. share the same horizontal grid (no interpolation).
1598       - exchanges between component and coupler is done in forward_step
1599    o new verification experiment, cpl_aim+ocn:
1600       coupled ocean - AIM atmosphere on cs32 grid.
1601    
1602    checkpoint52d_pre
1603    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1604    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1605    
1606    checkpoint52c_post
1607    o Fixing OPTIONS files for use of exf:
1608      - ALLOW_ECCO not needed
1609      - ECCO_CPPOPTIONS.h should not be included from
1610        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1611        as has been the case in the past
1612      - All cal/exf related options are currently set in
1613        single header file. Should remain so until we
1614        agree on a consistent new policy.
1615    o Removed all CPP options for cal package.
1616      cal has no more CPP options.
1617    o modified STOREs in GAD_ADVECTION
1618    o corrected key comp. for passkey
1619    
1620    checkpoint52b_post
1621    o new version: "thsice" of thermodynamic sea-ice pkg:
1622     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1623     - modify fluxes but do not change theta directly;
1624     - light cleaning of bulk_force pkg (still needed with thsice).
1625     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1626       + output_thsice.txt to test thsice & bulk_force pkgs.
1627    o put back grid & coriolis monitor output.
1628    checkpoint52b_pre
1629    
1630    o call "do_the_model_io" at the beginning (=> dump initial state)
1631    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1632    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1633      (need info on NUMBER_OF_PTRACERS)
1634    o missing PTRACERS headers in some routines
1635    o default tamc.h in pkg/autodiff supposed to crash
1636      to ensure proper customization
1637    
1638    checkpoint52a_post
1639    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1640      - moved surfaceTendencyTice from pkg/seaice to main code
1641      - subroutine FREEZE_SURFACE now limits only surface temperature
1642        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1643        => new output.txt for global_ocean.cs32x15 & global_with_exf
1644      - keep the old version of FREEZE for backward compatibility;
1645        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1646      - corresponding modifs for TAF directives
1647    o added surface flux output variables to TIMEAVE_STATVARS
1648    o time-averaged output for pkg/ptracers
1649    o fix problem with ECCO-related divided adjoint
1650      snapshot file was missing some ad-variables,
1651      but no warning issued by TAF
1652    
1653    checkpoint52a_pre
1654    o some bug fixes for #undef REAL4_IS_SLOW
1655    
1656    checkpoint52 = ecco_c52_e35
1657    o after testing adjoints of checkpoint51u_post
1658    
1659    checkpoint51u_post
1660    o this is the post-merge tag of the ecco-branch
1661      (needs another clean checkout and re-testing)
1662    o various natl_box_adjoint configs and results
1663      but no input fields
1664    o obcs adjoint not yet merged!
1665    o adding ECCO global 1x1 and 2x2 degree configs
1666    o updated/extended some store directives for seaice
1667    o pkg/ecco now containes ecco-specific part of cost function
1668    o top level routines the_main_loop, forward_step
1669      supersede those in model/src/
1670      previous input data.cost now in data.ecco
1671      (new namelist ecco_cost_nml)
1672    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1673    
1674    checkpoint51t_post
1675    o this is the pre-merge tag of the ecco-branch
1676    
1677    checkpoint51s_post
1678    o cleanup: removed various obsolete #define-s
1679    o pkg/grdchk
1680      - renamed 'ph-grd 3' to 'grad-res'
1681      - merged from ecco-branch
1682        (remaining bug fixes for obcs gradient checks)
1683      - additional high-precision output for testreport
1684        (grep for 'precision_grdchk_result')
1685    
1686    checkpoint51r_post
1687    o cleaned up or removed CPP_OPTIONS.h files
1688    o updated results for some of the tests to reflect the new
1689      optfiles (-ieee: -O0 instead of -O3)
1690    
1691    checkpoint51q_post
1692    o cd_code:
1693      - moved cd_scheme.F -> cd_code_scheme.F
1694      - separate read_checkpoint from cd_code_ini_vars.F
1695      - separated cd_code part from write_checkpoint
1696      - updated AD_SOURCE, generated .flow
1697      - added CD_CODE_VARS.h to the_main_loop
1698      - Moving cd_code specific store dir.s to pkg/cd_code
1699    o ctrl package totally restructured
1700      - pack/unpack now optional and decoupled from
1701        xx_/adxx_ I/O
1702      - ctrl_pack/unpack cleaned
1703        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1704      - confined inclusion of AD_CONFIG.h to where necessary.
1705    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1706    
1707    checkpoint51p_post
1708    o create initial cd_code package
1709      - WARNING: the initialization of fields within packages
1710        is broken because INI_FIELDS (where READ_CHECKPOINT is
1711        called) is called *before* PACKAGES_INIT_VARIABLES.
1712        This seems to be backwards since
1713        1) its important to initially zero the entire field including
1714           the "halo" region
1715        2) zeroing needs to be done *before* reading pickup info
1716           and the pickup call might or might not happen in any
1717           particular run
1718      - this needs an overhaul for R2
1719    o cleanup verification/*/code/GMREDI_OPTIONS.h
1720    o cleanup testreport
1721    
1722    checkpoint51o_post
1723    o bringing AD-related verif's up to date with genmake2
1724      - carbon/
1725      - global_ocean.90x40x15/
1726      - hs.94.1x64x5/
1727      - (front_relax/ )
1728    o (more) consistent directory structure for AD-related verif.'s
1729    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1730    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1731    o bug fix in find_alpha.F for MDJWF:
1732      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1733        change rho -> rho-rhoConst
1734      - replace call find_rho to find_rhonum
1735    o initialisation of rFlx extended to full array (required by TAF)
1736      and shifted to thermodynamics
1737    o removed PTRACERS.h in ptracers routine
1738    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1739    o Correcting initialisations for fVerU, fVerV.
1740    o helping TAF to recognize dependency on kUp for
1741      fVerU, fVerV
1742    o Replacing delZ by delR in pkg/ctrl/
1743    checkpoint51o_pre
1744    
1745    o undid all of cp51 pending some cleanups and discussion
1746    o added the [#include "AD_CONFIG.h"] statement to all files that need
1747       it for adjoint/tl #defines
1748     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1749     o removed tools/genmake since it no longer works
1750    
1751  checkpoint51n_post  checkpoint51n_post
1752  o modifications to make FREEZE flux visible to pkg/kpp  o modifications to make FREEZE flux visible to pkg/kpp

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