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revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC revision 1.715 by mlosch, Mon Aug 14 16:53:08 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o shelfice: add a simple boundary layer scheme to reduce noise
8    
9    checkpoint58n_post
10    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
11       local variable (not in common block).
12    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
13      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
14      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
15        to work with SingleCpuIO.
16    o add "_d 0" to real constant of pkg/cfc subroutines ;
17       update exp. cfc_exemple & tutorial_cfc_offline output files.
18    o multi-threading and IO:
19      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
20        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
21      - barrier before and after reading.
22      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
23      - avoid using MDS_WRITELOCAL for LAND pkg output.
24      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
25        common-block variables ; Allows multi-threading with master-thread IO.
26    o change default MAX_NO_THREADS from 32 to 4 ;
27      and stop cleanly when MAX_NO_THREADS is too small.
28    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
29    
30    checkpoint58m_post
31    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
32       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
33    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
34       keep global_ocean.90x40x15 (for AD testing) with former secondary test
35       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
36    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
37        add MITgcm_tutorials (= code + all the tutorials)
38    o ecco, option to compute cost for total ssh (mean+anom)
39    o consistent with addition of ptracer and ssh in pkg/profiles
40    o profiles: adding ptracer and ssh
41    o testreport: change multi-test output-file name
42      (from output.txt.{name} to output.{name}.txt)
43    o profiles: now ok for mutli-tiles case
44    o seaice: add 4 parameters for different advection schemes for area,
45      (effective) seaice thickness, enthalphy, and snow height. Their default
46      is the standard parameter SEAICEadvScheme
47    o calc_gw:
48     - add cosFacU in zonal viscous flux (harmonic.visc.).
49     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
50       of tutorial_plume_on_slope.
51    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
52    o calc_gw: true flux-form, account for horizontal grid spacing.
53      update rotating_tank results, but not plume_on_slope (affected at
54      truncation level, 11 digits).
55    
56    checkpoint58l_post
57    o calc_gw:
58     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
59     - remove side-drag for now (need to fix it); update plume_on_slope results.
60     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
61    o commit code to make SST/SSS weights spatially variable
62      (based on either variable in-situ or variable initial T/S weights)
63    o pkg/ecco:
64      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
65        now based on horizontally varying weights wthetaLev, wsaltLev
66      * cost_averagesflags now returns year indices in addition to day, month
67      * sflux balance is performed on annual basis
68        (sflxumm, sfluxmm2, bal_sfluxmm)
69      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
70        including separate counting and multipliers
71    o pkg/rbcs
72      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
73    
74    checkpoint58k_post
75    o testreport:
76     - always build in dir. "build" (if not there, mkdir build instead of building
77       & running in input)
78     - run in dir run (if it exists), in build otherwise.
79     - call prepare_run (if input/prepare_run exists)
80     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
81    o pkg/exf modifications to interpolation and rotation routines for more
82       reasonable treatment of North Pole singularity: for tracers North Pole
83       value is set to northernmost zonal-mean value, for zonal velocity it is
84       set to zero, and for meridional velocity it is set to northernmost value.
85    o pkg/exf/exf_check_range.F
86     - add tile index to diagnostics and move stop statement to the very
87       end of the routine.
88    o pkg/diagnostics: (diagnostics_main_init.F)
89      define title of isomorphic variables according to the current config.
90    o pkg/thsice with pkg/seaice dynamics:
91    - fix domain of computation (interior only, required for exf) and do exchanges
92    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
93    o towards a standard way of dealing with multi-threading in MONITOR
94      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
95    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
96       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
97    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
98    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
99    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
100       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
101    o tracer advection:
102     - clean-up and simplify calc_common_factors.F
103     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
104       advection subroutine (but still not used within DST advection S/R)
105    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
106    
107    checkpoint58j_post
108    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
109      from file (collects calls previously in FORWARD_STEP)
110    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
111    o adjoint store dir. adjusted accordingly
112    o genmake2
113      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
114    
115    checkpoint58i_post
116    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
117      on wind stress (SEAICEstressFactor defaults to 1.)
118    o Total number of Timers is finite (<=40): comment out 2 non-essential one
119      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
120    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
121      on CS-grid: no longer loosing mass.
122    o exf & curvilinear-grid: no longer modify longitude xC & xG.
123    o pkg/ggl90: fix sloppy output and fix a bug
124    o pkg/seaice: added SEAICEuseEVPpickup parameter
125      - Set to false in order to start EVP solver with
126        non-EVP pickup files when using SEAICEuseEVP
127      - fix sign error in diffusion in seaice_calc_rhs
128    
129    checkpoint58h_post
130    * Modifications for bottom topography control
131      o replace hFacC by _hFacC at various places
132      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
133      o add non-self-adjoint cg2d_nsa
134      o update autodiff support routines
135      o re-initialise hfac after ctrl_depth_ini
136      o works for 5x5 box, doesnt work for global_ocean.90x40x15
137    * Adding verification for 5x5 box (4-layer) bottom topography control
138    
139    checkpoint58g_post
140    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
141       used for mean seasonal cycle, mean diurnal cycle); add an example
142       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
143    o pkg/ggl90:
144      - add parameter (minimum surface kinetic energy)
145      - fix bug (avoiding division by zero)
146    o couple pkg/thsice to pkg/seaice:
147      - modify advection in seaice to accomodate new scalar fields to be advected
148      - only muliDimAdection scheme work with seaice/thsice
149      - mapping of thsice-variables to seaice-variables, back and forth
150      - does not break the verification experiments, but does not give the
151        desired results either
152    o pkg/seaice
153      - make (default) second order advection a bit less confusing?
154    
155    checkpoint58f_post
156    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
157      to pkg/seaice):
158      - new routines thsice_map_exf and thsice_get_exf provide the interface
159      - add an additional formal parameter to thsice_solve4temp
160    o pkg/exf:
161      - add new fields wspeed, snowprecip (to be able to couple to thsice)
162      - correct Stefan-Boltzmann constant
163      - new parameter for longwave surface emittance
164      - separate some stuff from exf_bulkformulae into new routines  
165        exf_radiation, exf_wind
166      - add new parameters and constants: longwave emissivity for ocean, ice
167        and snow, evaporation parameters over ice
168      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
169        either wind from stress or stress from wind
170    o pkg/thSIce:
171    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
172    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
173       and THSICE_CALC_THICKN
174    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
175    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
176      to make debugging easier.
177    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
178    o pkg/bulk_force:
179      - clean-up comments and parameters ;
180      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
181    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
182      generate new output for test-experiment: aim.5l_cs.thSI
183    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
184      testreport accordingly
185    
186    checkpoint58e_post
187    o SEAICE_CGRID adjoint done
188    o R_STAR adjoint implemented.
189      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
190      * need to sort out init. of h0facc, etc.
191    o Make pkg/profile fully independent of ecco,cost, etc. stuff
192      to be able to use it in pure forward.
193    
194    checkpoint58d_post
195    o upgrade simple test-experiment to tutorial example:
196     step.1: duplicate the experiment and (step.2) will remove the old copy.
197      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
198      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
199      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
200      tutorial_global_oce_biogeo    <- copy of dic_example
201      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
202      tutorial_plume_on_slope       <- copy of plume_on_slope
203      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
204      tutorial_global_oce_optim     <- empty for now (David ?)
205      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
206     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
207    o correct a sign problem in cost_scat.F
208    o obcs and ptracers: fix boundary conditions for advections schemes
209      with larger stencil
210    o thsice adjoint: start
211    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
212      completeness
213    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
214      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
215    o ptracers adjoint:
216      * avoid extensive recomputatations
217      * fix missing re-init. of gptr (missed by TAF)
218    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
219      me to turn off the excessive output to STDOUT that this package produces
220    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
221      and add those terms in Vector-Invariant formulation.
222    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
223      if the control period (xx_hfluxperiod etc) is 0
224    o in profiles pkg, clean routines and fix details
225    o in ecco pkg, reading ssh data:
226      fix problem in case the model does not start at iter0=0
227    o fix mnc-pickup/restart for ptracers
228    o new package prifiles:
229      code to compute profile-based cost by Gael Forget
230      (modifs in ecco, ctrl, autodiff)
231    o Benign bug fix in initialization (spotted by M. Mazloff) of
232      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
233    
234    checkpoint58c_post
235    o adjoint: finish NLFS adjoint and provide reference output in
236      verification/global_ocean.90x40x15/results_ad_nlfs
237    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
238      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
239      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
240      with SEAICE_CGRID defined.
241    o move calendarDumps from "data" to "data.cal" and clean-up the code
242      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
243    o add useEXF & useCAL flags (for now, set in hard-coded way)
244    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
245      (were missing in NH mode, and wrong in quasihydrostatic mode).
246      waiting for Chris updated version of calc_gw to add those CALLs.
247    o fix bug in quasihydrostatic S/R ;
248      add a test for this option: global_ocean.90x40x15.qshyd
249    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
250      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
251    o add on/off flag useOffLine for package OFFLINE
252    o seaice:
253      - modify advection so that it works also on the C-grid
254      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
255        problem in multi-tile runs with C-grid
256      - add flags for clipping ice velocities and/or masking solver forcing
257      - fix drag (ocean on ice) formulation and a bug that caused noise in the
258        C-grid solver
259      - added a few comments to seaice_diffusion.F
260      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
261        are now exclusive)
262      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
263        required re-ordering the code a little:
264       + make DAIRN global variable (defined in SEAICE)
265       + move computation of the viscosities eta and zeta into a new separate
266         routine (because I need to recompute them in seaice_ocean_stress.F)
267    
268    checkpoint58b_post
269    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
270      update output.txt of exp. aim.5l_cs.thSI
271    o various mnc cleanups and improvements:
272      + shrink lookup tables by factor of ~4
273      + better error reporting when running out of lookup space
274      + able to handle longer path/file names (up to 500 chars)
275    o adjoint:
276      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
277      - TBD: "hidden" mom_vecinv recomp. in dynamics
278    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
279     (allow to differentiate between forcing components using new integer flags:
280      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
281     and add new flag to put Dissipation tendency out of Adams-Bashforth.
282    o ecco
283      - enable trend removal from SSH anomaly obs.
284    o adjoint
285      - a fix for PmEpR when #undef EXACT_CONSERV
286      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
287      - try to fix "hidden" recomp. in forward_step for NLFS
288        (NLFS seems broken sometimes after I checked it in)
289    o seaice:
290     - add c-grid version of the dynamic solver:
291       + three new routines that are the c-grid substitute lsr, dynsolver
292         and ostres
293       + put a few fields that were local to dynsolver into global common
294         blocks, so that I can move the computation of stresses etc into
295         seaice_lsr (saves coding but may break the adjoint).
296     - replace more hardwired parameters by runtime parameters
297     - add ice masks that mask the rhs of the implicit solvers where there
298       is no ice (commented out in seaice_dynsolver, because i am not sure
299       if this works properly), eventually this should replace the clipping
300       of ice velocities in seaice_dynsolver to +/-40cm/s.
301    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
302      include it only where its needed
303    o move balancing of fluxes before the call of external_forcing_surf
304    o seaice:
305      - correct units of turning angles (now they are really in degrees)
306      - move computation of GWATX/Y out of main routine into dynsolver
307      - initialize GWATX/Y in seaice_init
308    o Apply mask on Fresh-Water flux (needed for SSH forcing).
309      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
310    o seaice: add runtime flags for turning angles (default to zero)
311    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
312      and trend from exf forcing and ctrl control adjustments
313    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
314      (since checkpoint57x_post)
315    o change the default rotation period to 86164.s = the Earth rotation
316    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
317      and based on a reference stratification. Tested within hs94.cs-32x32x5.
318    o seaice advection: add code for choosing between the default (2nd order
319      central differences) and multiDim advection schemes provided by
320      pkg/generic_advdiff
321    o seaice:
322      - removed all references to SEAICE_GRID.h fields from
323        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
324        (cubed-sphere configuration will change a little)
325      - grid computations in seaice_init are obsolete now.
326      - cleaned up code a little so that is easier to read (hopefully).
327      - added new (better?) discretizations of default advection and diffusion
328        (turn on with SEAICEuseFluxForm)
329      - replace 1 in 3d global fields by kSurface in growth.F
330      
331    checkpoint58a_post
332    o seaice:
333      - bug fix in advect.F
334    o shelfice:
335      - separate shelfice load anomaly from pload (breaks with time
336        dependent forcing), => introduce constant field shelficeLoadAnomaly.
337        Its default is 0., but it may be computed more cleverly from (unknown)
338        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
339        done offline. A good approximation of the pressure load anomaly is
340        necessary to avoid large initial adjustment processes underneath
341        deep-reaching shelfice.
342      - small fix in ISOMIP shelfice_thermodynamics
343      - add more sophisticated thermodynamics of Hellmer (1989), this is
344        now the default
345      - give a few constants more intuitive names
346    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
347      if bulk formulae are used in long integration (especially EmPmR). Turn
348      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
349      if balancePrintMean, the imbalance that is substracted is printed to
350      STDOUT.
351    o fix bug (typo) in obcs_apply_eta.F
352    o add a new package shelfice which enables us to model the circulation
353      underneath shelf-ice with draughts of hundreds of meters.
354     - works
355     - to do: + include improved thermodynamics
356              + check whether kSurfC (from model/inc/SURFACE.h) can be used
357                instead of new field kTopC
358              + can we use topoFile, Ro_surf and existing code in ini_depth.F
359                instead of new field R_shelfIce and new code in ini_depth.F
360                and ini_mask_etc.F?
361              + adjust vertical mixing schemes?
362    o seaice pkg:
363     - add a cpp-flag to include a simple formula for a salinity dependent
364       freezing point of sea water at the surface
365     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
366       meridional stresses are now different (and hopefully correct)
367    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
368       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
369       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
370    o pkg/diagnostics: add options and parameters for regional-statistics
371       diagnostics ; define regions by reading a region-mask from a file
372       (might add other options later)
373    o pkg/bulk_force:
374     - add option and parameters to use AIM surface-flux formulae.
375     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
376       others forcing fields (defined in PARM05, parameter file "data") are loaded
377       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
378     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
379     - use the right EXCH call for uwind,vwind (to work on CS-grid).
380     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
381       and parameters (note: calcWindStress replaces .NOT.readwindstress).
382     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
383    
384    checkpoint58
385    o add "--embed-source" option to genmake2 which, when the supporting
386      tools can be compiled (as determined by genmake2) will turn on the
387      embed_files package which then embeds the entire MITgcm source code
388      (*.[fFhc] + Makefile) used for the build within the executable
389      - requested by CNH but off by default
390      - adds a paltry <9MB to the mitgcmuv executable in most cases
391      - only writes the output when useEMBEDSRC in eedata is true
392    o clean up 3-dim. relaxation codes:
393      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
394      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
395      * Thanks to Tom Haine for testing!
396    
397    checkpoint57z_post
398    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
399      affects output (@ truncation level) of exp. plume_on_slope ; updated.
400    o fix the pickup behavior for obcs in combination with ptracers
401    o fix a bug in ptracers_external_fields_load
402    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
403      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
404    o transfered surface NH pressure to eta field (if exactConserv).
405    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
406         and update lab_sea output.txt file.
407    o completing 3-dim. relaxation code: additional term
408         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
409      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
410      * At compile time, in "EXF_OPTIONS.h" set
411          #define  ALLOW_CLIMTEMP_RELAXATION
412          #define  ALLOW_CLIMSALT_RELAXATION
413      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
414          tauThetaClimRelax3Dim = 15552000.0,
415          tauSaltClimRelax3Dim  = 15552000.0,
416      * 3 cases:
417          1) Use a constant-in-time 3-dim. field
418          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
419          3) Real-time relax. to time-evolving prescribed field
420    o Adding Laplacian-type smoothness constraint on
421      initial and boundary (forcing) controls (ic, bc)
422      * enable at compile-time via
423        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
424      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
425      * Absolute scale somewhat unclear so far
426      * no area weighting was included since no other cost term does so far
427    
428    checkpoint57y_post
429    First step for a NLFS adjoint
430    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
431    o new init. routines for calc_r_star, calc_surf_dr
432    o still need to deal with ini_masks_etc
433    o testreport seemed happy
434    checkpoint57y_pre
435    
436    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
437    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
438    o add new offset feature to offline pkg (plus minor cleanup)
439    o cfc fixes for final year of integration
440    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
441      be in GCHEM_OPTIONS).
442    
443    checkpoint57x_post
444    o fix testreport Pb in multiple test experiment.
445    o cleanup our namelist syntax in verification:
446      - make it more F95 standards compliant (some work still needed)
447      - allows the vast majority of our tests to work with gfortran
448    o Non-Hydrostatic:
449     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
450     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
451    o Allow to apply AB on T,S rather than on AB(gT,gS):
452     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
453     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
454       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
455     - need a "clever" read_pickup to restart from the other AB formulation
456    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
457    o remove some unused variables (reduces number of compiler warnings)
458    o adjoint
459      * Disable useVariableViscosity for adjoint for time being
460        (there are a number of extensive recomputations)
461      * Initialize certain variables needed for adjoint
462    
463    checkpoint57w_post
464    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
465                 fix the singleCpuIO RS version of MDSWRITEFIELD
466       and add a WARNING if using globalFiles=T with multi-processors.
467    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
468      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
469    o tracer advection scheme:
470      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
471       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
472       was not very convenient).
473      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
474       (further tests needed for the implicit DST & Flux-Limiter schemes).
475    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
476      and sRef for convenience, handy, when you want to initialize
477      ptracers in a large domain with a constant non-zero value. Also,
478      untangle ptracers_init.F a little.
479    
480    checkpoint57v_post
481    o change dome exp. to use variable viscosity in side-drag terms.
482    o remove all the files from the cfc_offline test since they are now
483      incorporated into tutorial_cfc_offline which has been producing
484      identical results for a few days of testing
485    o add new parameter: sideDragFactor to enable half-slip-side BC
486      and change side-drag S/R to use viscosity from mom_calc_visc
487      (can switch back by setting sideDragFactor=0.); affects results at
488      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
489       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
490    o vorticity & strain are now computed without masking, to account for
491      no-slip-side BC in variable viscosity calculation ; mask is applied
492      anyway later on, before computing advection/coriolis terms.
493    o modify exp4 to test new obcs support for reading from external files
494      and for passive tracers
495    o fix behavior of ptracers_monitor when monitor output is written to a
496      netcdf-file; still not independent of monitor.F (writes in the same
497      file).
498    o change default value of tRef (put a uniform, meaningful value for ocean
499      & atmos) and initialize sRef (was missing, as Martin mentioned).
500    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
501      to be proportional to enstrophy dissipation length.  Thus,
502       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
503      This is now consistent with Smagorinsky and with the manual.
504    
505    checkpoint57u_post
506    o OBCS and PTRACERS: add open boundary support for passive tracers
507      - either use homogenous (pseudo) v.Neumann conditions or prescribe
508        OB-values from file; this is not different from the way theta and salinity
509        are treated
510      - however, Orlanski-radiation conditions are not supported, and the model
511        will stop if you use pTracers and Orlanski at the same time.
512      - beefed up the rountine obcs_external_fields_load: now only those open
513        boundary values are overwritten with values from files for which there
514        are really files, otherwise the OB-fields remain untouched. This makes
515        it possible to use different OBs at different ends of the domain (as
516        with EXF)
517    o reduce number of exch calls in shap_filt (s2).
518    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
519      truncation level) 4/5 MLAdjust test results (11&12 digits match).
520    
521    checkpoint57t_post
522    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
523    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
524      same truncation, independent of the face number: affects affects several
525      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
526    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
527      note that biharmonic viscosity + no-slip was not tested in any experiment.
528    o fix bug in non-linear free-surf side-drag ; generate new output for
529      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
530    o make mnc honor the writeBinaryPrec flag for most kinds of output
531    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
532    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
533      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
534    o add brackets in multi-terms sum to get same truncation, independent of
535      the face number (manage to get exactly same value of gU,gV at the cs-edge)
536      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
537    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
538      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
539      a maximum grid-scale Reynolds number.  Also, changes all length calculations
540      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
541      Suggested values of viscosity parameters found in mom_calc_visc.
542      Many new viscosity diagnostics available.
543    
544    checkpoint57s_post
545    o Add clearing-house for viscosity calculations, mom_calc_visc and
546      correct numerous bugs in LeithD and Smagorinsky discretizations.  
547      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
548      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
549      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
550      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
551      The Strain-Tension form is now called with useStrainTensonVisc=.true.
552      ViscAhStrain and viscAhTension are now retired.
553    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
554    o In response to JMC's bug report, genmake2 now ignores any soft-links
555      that it finds in the *current* directory when searching for files.
556      Soft-links found in any other source directories will still work as
557      they did before.
558    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
559      a C routine to unlimit the stack size
560    o mnc-ify pkg/aim snapshot vars
561    o mnc-ify pkg/land as requested by Daniel
562    o various changes to mnc including:
563      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
564      - output can now be grouped so that all files within a group
565          change the ITER portion of their names in lock-step together
566      - can now read ("global") PER-FACE (in addition to PER-TILE) files
567          and works with both EXCH1 and EXCH2 (but needs more testing)
568      - writing works for all verification test cases w/ g77 on Linux
569    
570    checkpoint57r_post
571    o make MNC variable initialization happen earlier
572    o add diagnostics for (almost) each term of the momentum Eq.
573    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
574    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
575    o remove MINIMAL_TAVE_OUTPUT option ;
576      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
577    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
578      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
579    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
580    o add time-dependent SST, SSS control
581    o cost terms in ecco/ modularized (new cost_generic.F)
582    o cost_averages routines are modularized (new cost_averagesgeneric.F)
583    o new infrastructure for seaice model vs. obs misfits in seaice/
584      * driver from the_main_loop.F is seaice_cost_driver.F
585      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
586      * gradient check in Exp. 6a of natl_box_adjoint/
587    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
588      (see README file)
589    
590    checkpoint57q_post
591    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
592    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
593      - bug was reported by Jean-Michel and Ian Fenty
594    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
595      update exp. cpl_aim+ocn output.
596    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
597      Needed for high-res. runs with large global files
598      to be able to limit tapelev size
599    o Changed some tests for adjoint:
600      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
601      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
602      * global_ocean.90x40x15/ back to default 3-level checkpointing
603    o Modifications to enable scripted COMMON to MODULE conversion
604      * verification/OpenAD/code/ has necessary scripts and description;
605      * converts, compiles and runs successfully;
606    
607    checkpoint57p_post
608    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
609    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
610      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
611    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
612    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
613      (was already the case for dissipation with mom_vecinv,
614       and also the case for grad.PhiHyd when staggered-timeStep)
615      This will allow to put dissipation out-off the AB time-stepping.
616     Unfortunately, affects truncation error. Update output of exp. that "fails"
617      (cg2d matching number) and leave the others for later: front_relax(10),
618      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
619      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
620    
621    checkpoint57o_post
622    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
623      (2) its ready to be documented during the 20050801 DocFest
624    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
625      for ideal_2D_oce and lab_sea on linux_ia32_g77
626    o set to #undef CTRL_SET_OLD_MAXCVARS_30
627      in global1x1_tot/code_seaice_adj to access indices 32, 33
628      (worth another tag)
629    
630    checkpoint57n_post
631    o adding precip control xx_precip 32
632    o adding swflux control xx_swflux 33
633    o Replacing 10 forcing penalty cost routines by 1 generic.
634    o Implementing partitioning in time-mean and variable adjustment
635      for atmos. state.
636    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
637    o in natl_box_adjoint:
638      * updated exp 1 to 10
639        (but does not have time-mean vs. variable split results yet)
640    o updated global1x1/*_seaice_adj/
641      to incorporate latest changes
642    o enable useSingleCpuIO for mdsio vector routines
643      (applies in particular to tapelev I/O)
644    o removed inefficient K-loop in all active_file*control*.F
645    
646    checkpoint57m_post
647    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
648      and advect_cs (use EXCH-2 and standard cs-32 grid files).
649    o pkg/exch2: filling of face-corner halo regions is optional
650      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
651    
652    checkpoint57l_post
653     tag before updating tutorials (pre-release-2)
654    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
655       for output and interpolation of input fields onto model grid)
656    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
657       Affects results of exp. rotating_tank ; update output.txt.
658    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
659          and taking the square quantity and/or using a fraction-weight field.
660    o fix aim_diagnostics_init.F mate numbers.
661    o add mnc output capability to diagnostics/diagstat and update
662      our cvsignore files for the ACSII output generated
663    
664    checkpoint57k_post
665    o lab_sea now uses diagnostics package and provides a suite of
666      new EXF diagnostics output.
667    
668    checkpoint57j_post
669    o exf
670      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
671        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
672        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
673      * extended diagnostics output
674        - now includes all EXF variables
675        - hs, hl moved to common block
676        - separate S/R for diagnostics, called after ctrl vector is added
677        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
678        - EXFqnet contains true Qnet (i.e. includes qsw)
679      * updated verif. lab_sea, global_with_exf
680      * Rearranging hflux (exf_mapfields -> exf_getforcing)
681        to ensure that diagnostics sees a true EXFqnet
682    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
683    o diagnostics pkg: change pointers so that 1 diagnostic can be used
684      several times with different frequencies.
685    o mnc-ify the thsice package as requested by Daniel Enderton
686      - the monitor--MNC output needs work
687      - many attributes need to be added (most are currently blank)
688    o mnc-ify theaim_v23 package as requested by Daniel Enderton
689      - many attributes need to be added (most are currently blank)
690    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
691    o add Sadourny like discretization to the 4th.O vorticity advection scheme
692    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
693      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
694         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
695    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
696     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
697    
698    checkpoint57i_post
699    o Diagnostics package was changed: diagnostic allocation is now deactivated
700      by setting an empty file name in the namelist (used to be by setting 0 frequency)
701    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
702      add 1rst Order upwind vertical Shear.
703    o add a quick fix for A/B checkpointing in OFFLINE mode
704    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
705      end-run around the C/Fortran linking horror in eesup/src/timers.F
706    o added pkg/runclock: allows user to terminate run based on wall clock
707    o added non-hydrostatic scaling parameter: nh_am2
708    o pkg/my82: futile attempt to make results compiler-independent by adding
709      some "_d 0", etc. no effect.
710    o for mnc output, fill the 'T' coordinate var with myTime and create a
711      separate 'iter' variable for iteration count
712    o pkg/diagnostics:
713      add new capability: output of Global/Regional & per-level statistics ;
714      tested against monitor output (including land & thSIce) on various exp.
715    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
716    
717    checkpoint57h_done
718      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
719      data.diagnostics, data.gchem, data.ptracers) is done.
720    
721    o pkg/diagnostics: prepare for Global/Regional statistics.
722      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
723    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
724      and rename it: DIFFERENT_MULTIPLE
725    
726    checkpoint57h_post
727    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
728    o pkg/diagnostics: change output frequency, now in seconds (instead
729      of Nb of iterations). This requires to change data.diagnostics.
730    checkpoint57h_pre
731    
732    o in mnc, let the user create the output dir if both mnc_outdir_date
733      and mnc_outdir_num are false
734    o add fflags() to pkg/diagnostics which allows one to specify, on a
735      per-file basis, the file precision [default behavior is unchanged]
736    o added diagnostics to pkg/kpp, including computation of mixed layer
737      depth based on a temperature/density criterion
738    o updated verification/natl_box to test the new pkg/kpp diagnostics
739    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
740    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
741    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
742      not mnc -- this mistake was found by JMC and is now corrected
743    
744    checkpoint57g_post
745    o add Adams-Bashforth 3rd Order time stepping:
746      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
747      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
748    checkpoint57g_pre
749    
750    o make lambda[Theta,Salt]ClimRelax spatially varying
751      (default remains spatially uniform constant based on tau)
752    o added new control variables
753      * init. uVel, vVel, etanN
754      * lambda[Theta,Salt]ClimRelax
755    o separate masks used for ctrl_pack/unpack 'from write_grid' output
756      (suggested by G. Forget)
757    
758    checkpoint57f_post
759    o add parameter "baseTime" = model base time = time at iteration zero
760      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
761      account for baseTime shift
762    o move Coriolis arrays from PARAMS.h to GRID.h
763    checkpoint57f_pre
764    
765    o mnc-ifying the seaice package
766    o introduced an alternative length scale calculation for use in the limiting
767      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
768    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
769    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
770      as well as grad(vort3).  Made it compatible with both approximate form
771      for the cubed sphere and full form of these gradients.  Added flag
772      useFullLeith to select between approximate and full form.  
773    o add "d0" in getcon.F to reduce differences between compilers/platforms
774      update output.txt of exp. fizhi-gridalt-hs
775    o change port_rand funtion to allow to set the seed.
776    o fix obscure MNC bug involving conversion between reals and integers
777      - it caused no problems with certain (eg. gcc, ifc) compilers but the
778        new version is now more standards-compliant
779    o adjoint-related modifications
780      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
781      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
782      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
783    
784    checkpoint57e_post
785    o Adding eddy stress controls a la Ferreira et al.
786    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
787    
788    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
789      update output.txt of exp. fizhi-gridalt-hs
790    o add more "Z" dimensions and associated coordinate vars to MNC
791    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
792    o parameter calendarDumps: when set, approximate months (30-31 days) and years
793      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
794      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
795      months and years.  Requires pkg/cal.
796    o diagnostics: add pickup functionality
797      - off by default for backwards compatibility
798      - current version only uses MDSIO -- MNC will be added
799    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
800    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
801    
802    checkpoint57d_post
803    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
804    o modify verification/ideal_2D_oce so that it tests the creation of mnc
805      output from the diagnostics package
806    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
807    o make genmake2 more portable by using ".$FS" instead of ".f" for more
808      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
809    o add coordinate variables to the MNC output from the diagnostics package
810    o change MNC-flags default value: true when useMNC=TRUE
811    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
812      the ability (off by default) to read the grid information using MNC
813    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
814    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
815    o do snap-shot diagnostics at the middle of the time-interval (instead of
816      at the end).
817    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
818      new test for AIM with thSIce + slab-ocean
819    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
820    o move state variable diagnostics to the beginning of the time step ;
821      (note: still needs some work specially for snap-shot diagnostics)
822      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
823    
824    checkpoint57c_post
825    o Change testing option (-ieee) to get closer agreement between g77 & ifort
826    o generate new output.txt files on faulks with g77 & the new -ieee option
827    checkpoint57c_pre
828    
829    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
830      update output.txt of exp. global_ocean.90x40x15
831    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
832      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
833    o add saltFlux(+File) forcing capability with periodicExternalForcing
834    o allow to use pkg diagnostics for GM-Redi & ThSIce output
835    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
836    o improvements for the MNC output from DIAGNOSTICS:
837      - correct handling of the unlimitied dimension
838      - all dims now have associated coordinate variables
839      - variables located at U, V, and Corner ("Z") points are now written
840        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
841        *all* data points are output
842    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
843    o added pkg/seaice/seaice_monitor.F
844    o mdsio_readfield.F can now read files visible only to master MPI process.
845    o pkg/seaice: some test code for ice-modified ocean stress
846    o exf_getffields interpolation defaults to bilinear for all scalar forcing
847      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
848      spurious negative numbers for precipitation and humidity.  Will cause
849      some small numerical differences for integrations using pkg/exf/exf_interp.F.
850    o pkg/ctrl/
851      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
852        May be enabled via doPackDiag
853      *  introduce z-scaling of
854         + gradient (doZscalePack) and
855         + control (doZscaleUnpack)
856    o pkg/mdsio/
857      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
858      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
859    
860    checkpoint57b_post
861    o simplify options in diagnostics_fill arguments (remove weird combinations)
862    o fix MNC coordinate variables so that they now contain per-face index
863      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
864      general, EXCH2 grids are only aligned to a "local" coordinate system
865    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
866    o Implement instantaneous output within pkg diagnostics:
867      setting a negative frequency in data.diagnostics produces
868     "snap-shot" output (as opposed to time-average if freq > 0)
869    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
870      NOTE: change ptracer diagnostics name: use 2 characters to work with
871            more than 9 tracers. Add also diagnostics of advect & diffus flux.
872    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
873      becomes the coordinate variable for the 'T' dimension
874    o add CF-style coordinate variables to MNC
875      - just a first cut:  numbers are meaningless on the cubesphere and
876        missing along the T axis but otherwise it works!
877    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
878    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
879    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
880      this is based directly on what the model compute, so that the content of
881      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
882    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
883    o clean up build options files for SunOS, in particular
884      - remove -traditional from xmakedepend
885      - change -xarch=v9 to -xarch=native for f77
886      - restore use of make (not gmake)
887      - add CC=gcc if using g77
888    o changes per discussion of AM, JMC, & EH3 today:
889      - move redundant "grid" variables out of "state" -- in preparation of
890        creating proper CF-style coordinate variables and in recognition
891        that any/all grid variables can be easily copied (eg. w/NCO) from
892        the grid files into any of the other NetCDF files
893      - *always* output grid variables with MDSIO (this will eventually be
894        changed)
895      - output MNC grid file if useMNC is true
896    o every instance of _END_MASTER() has been found and replaced with
897      _END_MASTER( myThid ) in order to satisfy certain picky Sun
898      preprocessors
899    o re-arrange diagnostics pkg initialisation:
900     - allow each package to extend the available diagnostics list
901     - add some checking and fix small problems (multi-threaded, ...)
902     - new S/R diagnostics_fill (replace fill_diagnostics):
903       look through the short list of active diag. (instead of the long list)
904       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
905    
906    checkpoint57a_post
907    o this set of changes restores TAMC compatibility
908      tested for global_ocean.90x40x15 adjoint on trough
909      (what a pain)
910    
911    checkpoint57a_pre
912    o some modifs in tools/build_options for sunos
913    o call ctrl_pack for ctrl at end for optimcycle=0
914    
915    checkpoint57
916    o add horizontal bi-harmonic viscosity for vertical velocity
917      - new parameter viscA4W (defaults to viscA4)
918      - affects only non-hydrostatic code
919      - to be done: no-slip lateral boundary conditions
920    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
921    o implement Implicit Vertical advection for pTracers
922    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
923      (implemented also for implicit vertical diffusion & advection)
924    o OBCS: extend application of tracer open boundary conditions
925      to a strip beyond the boundary of width Olx/Oly
926    o add call monitor to TAF set of required calls (flow directives)
927      and include in natl_box_adjoint
928    o untangle a few ifdefs related to cost, ctrl, autodiff
929      untangel a few ALLOW_ECCO_OPTIMIZATION
930    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
931      (theta2, salt2 in ecco_cost_weights)
932    
933    checkpoint56c_post
934    o OBCS as control variables
935      - update ctrl_ad_diff.list, obcs_ad_diff.list
936      - remove balance of obcs controls from default
937      - fix index bug nobcs in ctrl_init
938      - fix dummy fields filen in ctrl_pack
939      - add dummy weights for obcs
940    o lsopt: comment out fort.94 output
941    o optim:
942      - remove unnecessary header files
943      - adjusted namelists
944      - add xerbla.F to Makefile
945    o exf:
946      - multiple modifications of exf_check_range
947      - unit change in exf_init_runoff from [m/year] to [m/s]
948    o mdsio:
949      - i/o-vector change debugLevel from debLevA to debLevB
950    
951    checkpoint56b_post
952    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
953      is called from DO_THE_MODEL_IO
954      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
955      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
956      - clean up PTRACERS_WRITE_TIMEAVE a little
957    o add another verification experiment that tests both the cfc-pkg and
958      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
959      reactive tendencies treated inline with regular timestepping
960    o testreport previously did a lousy job of comparing small numbers, so
961      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
962      implemented in the little c-progam tmp_cmpnum.c which is embedded in
963      testreport.
964    o ptracers_monitor: bug fix for MPI
965    
966    checkpoint56a_post
967    o GCHEM: finish reorganizating the package
968      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
969        (introduces another 3D-array for each passive tracer, but only if
970        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
971        gchemTendency is not needed because the timestep is done separately)
972      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
973      - GCHEM is now---more or less cleanly---separate from PTRACERS
974      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
975        so clear to me how that should be done in a general way.
976    o CFC: improve formatting of output in CFC_ATMOS
977    o PTRACERS:
978      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
979        that ALL experiments with ptracers enable can be checked. This makes
980        GCHEM_MONITOR obsolete.
981      - include a runtime parameter PTRACERS_monitorFreq that defaults to
982        monitorFreq
983      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
984    o add PTRACERS (PTR0[1-5]) to testreport output
985    o exf_check_range:
986      * default changed to .TRUE.
987      * will check values for niter0 if debLevA, every timestep if debLevB
988      * STOP in exf_check_range if 'out of range'
989      * range chosen generous to allow for potential extema
990      TBD: a version with stricter range
991           permitted range would be runtime parameters
992    o GMredi:
993      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
994      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
995      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
996    o GCHEM:
997      - move call to GCHEM_FORCING_SEP, so that it is now called before
998        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
999      - introduced a useGCHEM runtime flag and applied it everywhere.
1000      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1001        this flag is now only visible within GCHEM-pkg routines.
1002      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1003        be replaced by a 3D array that is computed before thermodynamics; for
1004        this, the tracer ID iTracer had to be included into the parameter list
1005        of ptracers_forcing
1006      - set up forward_step to call gchem_forcing, that will replace
1007        gchem_forcing_int in ptracers_forcing
1008      - cleaning up
1009    o small cleaning of exch2: remove files that are also in eesupp/src
1010    
1011    checkpoint56
1012    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1013    o mnc: cleanup "full" files--fixes out-of-memory problem
1014    o ECCO-GODAE
1015      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1016      * fully merged and updated from SIO code
1017        windstress sign change affects
1018        - exf_inscal_[u/v]stress
1019        - sign of xx_tau[u/v] adjustments
1020        - signs in cost_scat
1021      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1022      * natl_box_adjoint updated and compressed
1023      * 2-level checkpoint switch added
1024        (tested in EXP. 1 of natl_box_adjoint)
1025      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1026    o SVD
1027      * first complete, non-hacked version for SVD calculations
1028      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1029        performed via direct access files admtlm_vector.it????
1030        (via ctrl_[un]pack)
1031      * optimcycle is used for ARPACK iteration counter
1032        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1033      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1034        and add linear transforms where necessary
1035      * controls are initial/final SST, SSS (can be extended; need to check
1036        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1037    o mdsio: filename info to both stderr, stdout
1038    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1039      from sign change
1040    
1041    checkpoint55j_post
1042    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1043      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1044    o add consistent build directories and .cvsignore files to verification
1045    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1046    o make all subroutines 30 or less characters in length for certain older
1047      compilers to work (a thorough search only turns up two routines in
1048      pkg/ptracers)
1049    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1050      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1051    
1052    checkpoint55i_post
1053    o change arrays for total vertical diffusivity (2.D if explicit,
1054      3.D if implicit) ; each ptracer uses its own background value.
1055    o added mnc/NetCDF output capability to ocn_compon_interf
1056      - added bits to verification/cpl_aim+ocn so that it can run on
1057        ITRDA and other clusters without the mpirun "-wd" option
1058    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1059      configuration
1060    o give MNC the ability to create additional files rather than
1061      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1062      - the default is just less than 2GB which is a practical limit
1063        on many systems
1064    o Compute the non-local term using either KPP vertical diffusivity (=default)
1065       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1066    
1067    checkpoint55h_post
1068    o add verification test "vermix"
1069    o remove all the *_ioinc flags and replace with the single global
1070      outputTypesInclusive flag
1071    o allow to set a vertical profile of vertical diffusivity for T & S
1072    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1073    o useMNC moved from data.mnc to data.pkg
1074    
1075    checkpoint55g_post
1076    o Renaming carbon AD experiments to comply with testreport conventions
1077    o Updating adjoint of Held-Suarez hs94.1x64x5
1078    o Fixing directives for non-ECCO forward_step, after ECCO directives
1079      have been fixed to avoid recomp. of do_oceanic_phys
1080      Works well for global_ocean.90x40x15,
1081      but recomp. issue remains for carbon
1082    o Updating adjoint output for natl_box_adjoint after
1083      pkg/ecco has been modified (see taga c55d_post)
1084    
1085    checkpoint55f_post
1086    o rename to timeave_init_fixed
1087    
1088    checkpoint55e_post
1089    o some delicate re-shuffle of store directives to avoid one
1090      extra call of do_oceanic_physics
1091      affects ecco_the_main_loop.F, do_oceanic_physics.F
1092      checkpoint_lev1_directives.h
1093    o NB: this may break global_ocean adjoint temporarily,
1094      but it is clear how to fix it. Will do later, need this now.
1095    
1096    checkpoint55d_post
1097    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1098    o ecco_cost_weights is modified to 1x1 runs
1099    o modifs to allow observations to be read in as
1100      single file or yearly files
1101    o enable to read exf forcing fields as either
1102      single file or yearly files (flag useExfYearlyFields)
1103    checkpoint55d_pre
1104    
1105    o switch between 2-level and 3-level checkpointing
1106    o add ability of MNC to write local and "partial" (eg. 2D slices where
1107      the full 3D field is never actually stored) arrays to NetCDF files
1108      with the correct (that is, the complete multi-dimensional) set of
1109      array indicies
1110      - used in mom_vecinv() to write the diagFreq output
1111      - tested (demonstrated) in verification/aim.5l_cs
1112    o further mnc-ification
1113      - add verification/lab_sea to the list with mnc setups
1114      - fix undefined mnc v-names in cd_code
1115      - add kpp to mnc output (both snapshot and timeave)
1116    o non-hydrostatic code
1117      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1118        in calc_gw.F
1119      - defaults to viscAh
1120      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1121        friction or Leith) in non-hydrostatic mode, as long as there is
1122        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1123    o pkg/cost
1124      extend simple cost functions to treat time mean quantities
1125      (T,U,V) via cost_accumulate_state from cost_tile
1126    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1127        be 2 times larger than the minimum size the advection scheme requires.
1128        now get a perfect conservation of salt in advect_cs test-exp (updated)
1129    o GGL90 (Gaspar's TKE mixed layer)
1130      - add horizontal diffusion of TKE, requires exchanges in
1131        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1132        default. In OPA there is no horizontal diffusion of TKE but the
1133        mixing coefficients are computed from a horizontal average of TKE of
1134        6 points or so. I think that diffusion has a little more physical
1135        justification.
1136      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1137        was in vain)
1138      - mask tke-variable in ggl90_init
1139    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1140    o fix biharmonic diffusion on CS-grid.
1141    o more obcs stuff
1142      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1143        for reading boundary values. This routine is called from
1144        obcs_prescribe_read
1145      - updated obcs_check
1146      - changed sponge layer relaxation parameter units for days to seconds
1147      - turned off sponge layer by default
1148      - changed argument list of OBCS_CALC to myTime+deltaTclock
1149      - fixed about 35 bugs in obcs_external_fields_load
1150    
1151    checkpoint55c_post
1152    o obcs stuff
1153      - new runtime flags useOBCSprescribe, useOBCSbalance
1154      - re-arranged obcs_calc
1155      - moved exf_getobcs to obcs_prescibe_read
1156        obcs_prescibe_read is called after ORLANSKI stuff
1157        and independent of it (executable can contain all).
1158      - updated obcs_check
1159      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1160        These may be necessary only if tangential velocities are
1161        prescribed at OB, not sure, needs testing.
1162    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1163      which simplifies the calls and passes the ifc check-bounds test
1164    
1165    checkpoint55b_post
1166    o add a 2D scalar, Z location, exchange_2 routine.
1167    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1168      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1169      affects advect_cs results (for the wrong reason): update output.txt
1170    o use a more standard discretization for biharmonic viscosity ;
1171     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1172      affects results of dome set-up: update output.txt
1173    o fix gad_advection.F (CubedSphere part), back to version 1.23
1174    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1175    
1176    checkpoint55a_post
1177    o merged code to
1178      * prescribe/read time-dependent open boundaries
1179        (works in conjunction with exf, cal)
1180      * sponge layer code for open boundaries
1181      * each boundary N/S/E/W now has its own CPP option
1182        (healthy for the adjoint)
1183    
1184    checkpoint55
1185    o up-to-date adjoint of previous breaks
1186      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1187      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1188      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1189      - carbon: * remove tr1-related adjoint verification
1190                * add ptracer as control variable
1191    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1192      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1193    
1194    checkpoint54f_post
1195    o in verification/carbin/ remove experiment related to
1196      ALLOW_PASSIVE_TRACER (array tr1 etc)
1197      code_ad/ input_ad/ results_ad
1198    
1199    o add two new packages
1200      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1201        + subject to optimization (memory)
1202      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1203        + subject to reordering (many GOTOs in the original code)
1204        + so far opps is called for every (i,j) point, and then operates in
1205          the vertical; one may want to reorder the scheme in order operate in
1206          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1207          fields)
1208    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1209      - all verification tests compile and run with linux_ia32_g77
1210      - defaults are compatible with current input files--nothing
1211        should change if you were not previously using MNC
1212      - MNC output has been added in numerous places (eg. timeave)
1213        but there are still a few writes not yet do-able with MNC
1214        (this is in progress)
1215      - flags now allow for either/or/both use of MDSIO and MNC and
1216        documentation will soon follow
1217      - numerous small formatting cleanups for ProTeX
1218    o add version info (via BUILD_INFO.h) to MNC and stdout
1219    
1220    checkpoint54e_post
1221    o add two new packages
1222      - pp81 (Packanowski and Philander, 1981), Richardson number and
1223        stratification dependent mixing
1224      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1225      - these scheme operate in a similar manner as KPP (without ghat, of
1226        course), however there is only one diffusivity that is used for both
1227        temperature and salinity (and passive tracers)ç
1228    o add offline package
1229    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1230      provided by Stephanie Dutkiewicz
1231    o genmake2: add ability to search for C compilers and cleanup test output
1232      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1233    
1234    checkpoint54d_post
1235    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1236    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1237      leading to additional shift by 5 days each year of integration
1238       (i.e. leading to considerable offset over the years)
1239    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1240    o start with no AB and no initial filtering (staggerTimeStep):
1241      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1242    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1243      (external loading & cpl import/export stay in forward_step.F)
1244    o update coupling interface to work with new staggerTimeStep
1245    o change MDSIO ptracers_pickup.
1246    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1247    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1248    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1249    
1250    checkpoint54c_post
1251    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1252      this affects (truncation error) output.txt of test-exp:
1253       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1254    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1255    o change Qnet to always be the net heat flux, (+upward).
1256      affects (truncation error) output of natl_box exp.: updated
1257    o define the max number of passive tracers in PTRACERS_SIZE.h
1258    o start to test mnc routinely in exp0
1259    o add sea-ice loading (sIceLoad) as a new forcing field.
1260    
1261    checkpoint54b_post
1262    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1263       impressive on Altix and Opteron systems)
1264    o diagnostics can now write NetCDF files through the mnc package
1265    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1266    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1267    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1268      affects (truncation error) output of lab_sea & natl_box exp.: updated
1269    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1270    
1271    checkpoint54a_post
1272    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1273    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1274    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1275    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1276      + internal_wave (shift in writing cg2d_ini_res)
1277    checkpoint54a_pre
1278    
1279    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1280      - modified verification/lab_sea and natl_box_adjoint accordingly
1281    
1282    checkpoint54
1283    checkpoint53g_post
1284    o prepare splitting of thermodynamics: store convect.counter in common block
1285    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1286      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1287    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1288    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1289    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1290    o restore adjointability
1291    
1292    checkpoint53f_post
1293    o modifications that affect AIM experiment results (update output.txt):
1294      - no advection of S at top interface Nr (pkg/generic_advdiff)
1295      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1296    o AIM pkg:
1297      - include stability function into surf.Flux derivative relative to Tsurf
1298      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1299    
1300    checkpoint53e_post
1301    o merged cylindrical coord configuration
1302    o added rotating_tank experiment
1303    checkpoint53e_pre
1304    
1305    checkpoint53d_post
1306    o faulks upgraded: re-generate output.txt that have changed:
1307       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1308    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1309    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1310    o added Sadourny discretization of Coriolis
1311      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1312      - re-enabled use of omega3 (useAbsVorticity)
1313    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1314      vector-invariant equations
1315      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1316    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1317      hopefully without new bugs
1318      - still to do: biharmonic friction for non-hydrostatic w
1319    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1320    o regenerated output for global_ocean_ebm (using -ieee)
1321    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1322      of mom_common/
1323      - simple re-arrangement of instructions within computing loop
1324    checkpoint53d_pre
1325    
1326    checkpoint53c_post
1327    o new version of coupler for AIM+thSIce and Ocean models
1328     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1329     - land: change Evaporation of snow
1330     - aim with thSIce: fix bug in snow-precip.
1331    o changes to calc_gw.F
1332     - bug fix for w^2 term near the bottom boundary
1333     - (hopefully) improve the lateral slip boundary condtions for use with
1334        partial/looped cells
1335      - because the bug fix changes two verification experiments anyway (exp5
1336        and plume on slope), change the lateral boundary condition from half slip
1337        to the value of no_slip_sides
1338    o ebm package wasnt quite up to the parallel task. Fixed that.
1339    o Adjoint of EBM package + verification
1340      * TLM OK
1341      * ADM not sufficient accuracy yet (needs further testing)
1342    
1343    checkpoint53b_post
1344    o Commiting new energy balance model to repository
1345      * package is pkg/ebm
1346      * verif. is verification/global_ocean_ebm
1347      * references are in ebm_driver.F
1348    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1349    C        Global thermohaline circulation. Part I:
1350    C        Sensitivity to atmospheric moisture transport.
1351    C        J. Climate 12(1), 71-82
1352    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1353    C        Global thermohaline circulation. Part II:
1354    C        Sensitivity with interactive transport.
1355    C        J. Climate 12(1), 83-91
1356    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1357    C        Destabilization of the thermohaline circulation
1358    C        by atmospheric eddy transports.
1359    C        J. Climate 7(12), 1870-1882
1360    o Will need long integration testing.
1361    checkpoint53b_pre
1362    
1363    o created pkg/mom_common in preparation for variable viscosity code
1364    o renamed and split ini_mnc_io
1365    o pkg/land: only liquid water can diffuse or run-off
1366    o AIM using land: soil wetness availability account for snow
1367    o added printMapIncludesZeros to EEPARMS namelist
1368    
1369    checkpoint53a_post
1370    o restore TAMC compatiility for exf_constants.h
1371      (no usage of _d in .h)
1372    o Additional storing in KPP in an attempt to fix
1373      TAMC problem with adjoint of KPP code.
1374      (no success...)
1375      Identical code works fine with TAF.
1376    o Fixed verification/natl_box_adjoint experiments.
1377      Initial conditions for Experiments 4 and 5 are now
1378      set to "SEAICE_initialHEFF=0", which is more reasonable,
1379      and hence gives results closer to that of Experiment 2.
1380      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1381    
1382    checkpoint53
1383    o stable checkpoint with up to date adjoint
1384      TLM tests only run for 1st grdchk at the moment. Its unclear if
1385      this is a code problem or a problem with resetting code for g_
1386      variables that is being autogenerated wrong.
1387      Otherwise:
1388       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1389       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1390         are both still in chaos following their security messes.
1391    
1392    checkpoint52n_post
1393    o various build (mostly genmake2) changes including:
1394      - ability to build/run more easily within Cygwin and MacOS X
1395      - more complicated Makefiles with a stronger dependence on Gnu Make
1396    o pkg/seaice modifications
1397      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1398        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1399        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1400      - changed proxy for geostrophic velocity and updated
1401        verification/lab_sea/results/* accordingly
1402      - removed ADI dynamic solver from pkg/seaice
1403      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1404        they caused a segmentation fault under certain circumstances
1405      - removed unused field WATR
1406    o bug fix in exf-package:
1407      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1408         now reflect that.
1409    o small fixes in the cal-package:
1410      - set reference date to first of January for the 'model'-calendar
1411      - failing of cal_CheckDate in cal_FullDate now actually results in a
1412        warning
1413    o small modifications in exf-package to increase flexibility:
1414      - change climtempfreeze from a constant to a runtime parameter that
1415        is specified in data.exf_clim (default = -1.9)
1416      - introduce runtime parameter windstressmax (default = 2.0) that is
1417        specified in data.exf
1418    o fix in pkg/thsice:
1419      - update Evap (Tsf changes) to be consistent with Latent heat flux
1420      - maintain snow precipitation unchanged (even if Tsf >=0).
1421     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1422    
1423    checkpoint52m_post
1424    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1425      this does not change any of the results, because myIter=0 in swfrac always
1426      lead to jwtype=2 (the default anyway), but the call makes little sense
1427      as a default
1428    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1429    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1430      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1431    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1432    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1433    o extending useSingleCpuIO option to work with new exch2 I/O format
1434      - old-style, missing-tile I/O is still accessible by defining CPP
1435        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1436    o monitor package can write to NetCDF files and/or STDOUT
1437    o fix re-definition bug in MNC_GRID_INIT_ALL()
1438    o doc/api_reference added
1439      - a framework for building an API Reference Manual using all
1440        the "protex" comments embedded in the code
1441      - see pkg/generic_advdiff, pkg/mnc for examples
1442    o MNC:
1443      - make myThid the last argument for all subroutines
1444      - new default for the grid files: NO halos
1445      - add useMNC and other run-time flags
1446      - separate per-file-group handling of the unlimited dimension
1447      - early initialization of MNC w/ flags read at the eeboot stage
1448        and lookup tables set in initialize_fixed
1449      - write all MNC output to a freshly-created directory
1450    o thermodynamics sea-ice (thsice) is now tested with testreport.
1451    o test exp. advect_cs: use the standard cs32 grid ; update output.
1452    o Added functionality to grdchk:
1453      pick global i,j,k position (or nearest wet) where to perform check.
1454    
1455    checkpoint52l_post
1456    o new land formulation:
1457      a) use ground enthalpy as prognostic variable to ensure exact
1458         energy conservation.
1459      b) account for water temperature and for latent heat of freezing
1460         in all processes (rain, run-off, ground storage)
1461      c) compute surface and ground temperature implicitly.
1462    o aim_v23 modification for new land model:
1463      a) Treat separately land / ocean / sea-ice surface fluxes
1464         to allow implicit computation of land & sea-ice surface temp.
1465      b) add snow precipitation.
1466    checkpoint52l_pre
1467    
1468    o fix problem (when 1 tile is empty) in min/max monitor.
1469    o fix bug in timeAve (u,vZetatave in common block)
1470    o no restoring terms under ice for pkg/seaice
1471    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1472    o bug fix for pkg/seaice pickups
1473    o change MNC call locations and add coordinate attributes
1474    o mask vorticity at the corner ; affects global_ocean.cs output
1475    o fix ini_curvilinear_grid ; test CS experiments with mpi
1476    o aim.5l_cs: modify sea-ice fraction input file ; update output
1477    o exf: Adding simple range check routine for exf fields after read
1478    
1479    checkpoint52k_post
1480    o removed top-level directory "diags"
1481      - we migrated these functions to pkg/timeave a long time ago
1482    o fixed bug introduced in pkg/monitor
1483    o accuracy ctrlprec = 32 insuffient for gradient checks using
1484      averaged fields (I/O via cost_averages)
1485      -> use ctrl.h in active_file*.F to control I/O precision.
1486    o paramter list of CALL ADTHE_MAIN_LOOP
1487    o added initial do_the_model_io to ecco
1488    o set all ...Freq to zero after cost_final
1489      taveFreq, dumpFreq, pChkptFreq
1490    o MAIN and ECCO differentiability restored
1491    
1492    checkpoint52j_post
1493    o fix nchklev in tamc.h for global_ocean...
1494    o Bringing flow and store directives up-to-date
1495    o Really weird thing!
1496      call do_the_model_io from the_main_loop with parameters
1497      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1498      TAF places a faulty re-call of initialise_varia
1499      after cost_final call which should not be there!
1500    checkpoint52j_pre
1501    
1502    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1503      error messages
1504    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1505    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1506      debug output
1507    o modfied mdsio_writefield.F to handle non-global files under exch2
1508    o update AIM Cubed-Sphere exp (aim.5l_cs):
1509      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1510    o update AIM Equatorial Channel exp:
1511      use standard aim_v23 pkg and change the SST fields to be more realistic.
1512    o globalFile now works with exch2
1513    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1514      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1515    o limit timeave output for hi-res integrations
1516    
1517    checkpoint52i_post
1518    o removed CPP_EEOPTIONS.h from verification/*/code
1519    o updated the tiling for global_ocean_pressure
1520    checkpoint52i_pre
1521    
1522    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1523      the old pkg/aim).
1524    
1525    checkpoint52h_pre
1526    o shortened offending lines in exch2_send_rx?.template
1527    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1528    o genmake2: add build & execute test for NetCDF code
1529    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1530      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1531    o added useSingleCPUIO flag to monitor.F and mon_out.F
1532    o added temporary hack for sea-ice dynamics on the cube:
1533      metric terms are ignored and it is assumed that
1534      there is no sea-ice on cube faces 1, 2, 4, and 5.
1535    
1536    checkpoint52f_post
1537    o added exch2 cube routines to pkg/exch2
1538    o modified hs94.cs-32x32x5 to use it
1539    o added new grid files to hs94.cs-32x32x5
1540    checkpoint52f_pre
1541    
1542    checkpoint52e_post
1543    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1544      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1545    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1546      to work with implicit vertical advection and AB ;
1547    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1548    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1549     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1550    checkpoint52e_pre
1551    
1552    o fix bug in impldiff when Nr=1 or Nr=2.
1553    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1554    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1555    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1556      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1557    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1558    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1559    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1560    
1561    checkpoint52d_post
1562    o re-tiled many expts to allow comparison in multi-processor mode
1563      - updated output accordingly
1564      - changed hs94.128x64x5 to use intial T from file rather than use the
1565        random number generator
1566    o add infrastructure in model routines for fizhi and gridalt packages
1567    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1568    o changes to permit hi-res, cubed-sphere, configuration
1569      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1570      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1571      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1572        of surface winds for the cube
1573      (A verification experiment, based on global_ocean.cs32x15, but with
1574       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1575       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1576       complete with example surface forcing files and matlab scripts to look
1577       at the output and compare it with that of global_ocean.cs32x15.)
1578    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1579       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1580       to conform to the common rule.
1581    o check-in the first version of the coupler + interfaces for multi-components
1582       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1583       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1584       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1585       - ocean and atmos. share the same horizontal grid (no interpolation).
1586       - exchanges between component and coupler is done in forward_step
1587    o new verification experiment, cpl_aim+ocn:
1588       coupled ocean - AIM atmosphere on cs32 grid.
1589    
1590    checkpoint52d_pre
1591    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1592    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1593    
1594    checkpoint52c_post
1595    o Fixing OPTIONS files for use of exf:
1596      - ALLOW_ECCO not needed
1597      - ECCO_CPPOPTIONS.h should not be included from
1598        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1599        as has been the case in the past
1600      - All cal/exf related options are currently set in
1601        single header file. Should remain so until we
1602        agree on a consistent new policy.
1603    o Removed all CPP options for cal package.
1604      cal has no more CPP options.
1605    o modified STOREs in GAD_ADVECTION
1606    o corrected key comp. for passkey
1607    
1608    checkpoint52b_post
1609    o new version: "thsice" of thermodynamic sea-ice pkg:
1610     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1611     - modify fluxes but do not change theta directly;
1612     - light cleaning of bulk_force pkg (still needed with thsice).
1613     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1614       + output_thsice.txt to test thsice & bulk_force pkgs.
1615    o put back grid & coriolis monitor output.
1616    checkpoint52b_pre
1617    
1618    o call "do_the_model_io" at the beginning (=> dump initial state)
1619    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1620    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1621      (need info on NUMBER_OF_PTRACERS)
1622    o missing PTRACERS headers in some routines
1623    o default tamc.h in pkg/autodiff supposed to crash
1624      to ensure proper customization
1625    
1626    checkpoint52a_post
1627    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1628      - moved surfaceTendencyTice from pkg/seaice to main code
1629      - subroutine FREEZE_SURFACE now limits only surface temperature
1630        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1631        => new output.txt for global_ocean.cs32x15 & global_with_exf
1632      - keep the old version of FREEZE for backward compatibility;
1633        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1634      - corresponding modifs for TAF directives
1635    o added surface flux output variables to TIMEAVE_STATVARS
1636    o time-averaged output for pkg/ptracers
1637    o fix problem with ECCO-related divided adjoint
1638      snapshot file was missing some ad-variables,
1639      but no warning issued by TAF
1640    
1641    checkpoint52a_pre
1642    o some bug fixes for #undef REAL4_IS_SLOW
1643    
1644    checkpoint52 = ecco_c52_e35
1645    o after testing adjoints of checkpoint51u_post
1646    
1647    checkpoint51u_post
1648    o this is the post-merge tag of the ecco-branch
1649      (needs another clean checkout and re-testing)
1650    o various natl_box_adjoint configs and results
1651      but no input fields
1652    o obcs adjoint not yet merged!
1653    o adding ECCO global 1x1 and 2x2 degree configs
1654    o updated/extended some store directives for seaice
1655    o pkg/ecco now containes ecco-specific part of cost function
1656    o top level routines the_main_loop, forward_step
1657      supersede those in model/src/
1658      previous input data.cost now in data.ecco
1659      (new namelist ecco_cost_nml)
1660    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1661    
1662    checkpoint51t_post
1663    o this is the pre-merge tag of the ecco-branch
1664    
1665    checkpoint51s_post
1666    o cleanup: removed various obsolete #define-s
1667    o pkg/grdchk
1668      - renamed 'ph-grd 3' to 'grad-res'
1669      - merged from ecco-branch
1670        (remaining bug fixes for obcs gradient checks)
1671      - additional high-precision output for testreport
1672        (grep for 'precision_grdchk_result')
1673    
1674    checkpoint51r_post
1675    o cleaned up or removed CPP_OPTIONS.h files
1676    o updated results for some of the tests to reflect the new
1677      optfiles (-ieee: -O0 instead of -O3)
1678    
1679    checkpoint51q_post
1680    o cd_code:
1681      - moved cd_scheme.F -> cd_code_scheme.F
1682      - separate read_checkpoint from cd_code_ini_vars.F
1683      - separated cd_code part from write_checkpoint
1684      - updated AD_SOURCE, generated .flow
1685      - added CD_CODE_VARS.h to the_main_loop
1686      - Moving cd_code specific store dir.s to pkg/cd_code
1687    o ctrl package totally restructured
1688      - pack/unpack now optional and decoupled from
1689        xx_/adxx_ I/O
1690      - ctrl_pack/unpack cleaned
1691        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1692      - confined inclusion of AD_CONFIG.h to where necessary.
1693    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1694    
1695    checkpoint51p_post
1696    o create initial cd_code package
1697      - WARNING: the initialization of fields within packages
1698        is broken because INI_FIELDS (where READ_CHECKPOINT is
1699        called) is called *before* PACKAGES_INIT_VARIABLES.
1700        This seems to be backwards since
1701        1) its important to initially zero the entire field including
1702           the "halo" region
1703        2) zeroing needs to be done *before* reading pickup info
1704           and the pickup call might or might not happen in any
1705           particular run
1706      - this needs an overhaul for R2
1707    o cleanup verification/*/code/GMREDI_OPTIONS.h
1708    o cleanup testreport
1709    
1710    checkpoint51o_post
1711    o bringing AD-related verif's up to date with genmake2
1712      - carbon/
1713      - global_ocean.90x40x15/
1714      - hs.94.1x64x5/
1715      - (front_relax/ )
1716    o (more) consistent directory structure for AD-related verif.'s
1717    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1718    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1719    o bug fix in find_alpha.F for MDJWF:
1720      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1721        change rho -> rho-rhoConst
1722      - replace call find_rho to find_rhonum
1723    o initialisation of rFlx extended to full array (required by TAF)
1724      and shifted to thermodynamics
1725    o removed PTRACERS.h in ptracers routine
1726    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1727    o Correcting initialisations for fVerU, fVerV.
1728    o helping TAF to recognize dependency on kUp for
1729      fVerU, fVerV
1730    o Replacing delZ by delR in pkg/ctrl/
1731    checkpoint51o_pre
1732    
1733    o undid all of cp51 pending some cleanups and discussion
1734    o added the [#include "AD_CONFIG.h"] statement to all files that need
1735       it for adjoint/tl #defines
1736     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1737     o removed tools/genmake since it no longer works
1738    
1739    checkpoint51n_post
1740    o modifications to make FREEZE flux visible to pkg/kpp
1741      - moved surfaceTendencyTice from pkg/seaice to main code
1742      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1743      - subroutine FREEZE now limits only surface temperature
1744        (this means new output.txt for global_ocean.90x40x15,
1745         global_ocean.cs32x15, and global_with_exf)
1746    o added surface flux output variables to TIMEAVE_STATVARS
1747    
1748    checkpoint51n_pre
1749    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1750    o added [#include "AD_CONFIG.h"] to all files that use the following
1751      defines:
1752      - ALLOW_ADJOINT_RUN
1753      - ALLOW_TANGENTLINEAR_RUN
1754      - ALLOW_ECCO_OPTIMIZATION
1755    
1756    checkpoint51m_post
1757  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
1758    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
1759    - various cleanups related to package handling    - various cleanups related to package handling
1760      - these changes should have no impact on the forward model
1761    
1762  checkpoint51l_post  checkpoint51l_post
1763  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations

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