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revision 1.198 by edhill, Tue Oct 28 22:57:59 2003 UTC revision 1.713 by jmc, Mon Aug 14 00:43:23 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 fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
8       local variable (not in common block).
9    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
10      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
11      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
12        to work with SingleCpuIO.
13    o add "_d 0" to real constant of pkg/cfc subroutines ;
14       update exp. cfc_exemple & tutorial_cfc_offline output files.
15    o multi-threading and IO:
16      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
17        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
18      - barrier before and after reading.
19      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
20      - avoid using MDS_WRITELOCAL for LAND pkg output.
21      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
22        common-block variables ; Allows multi-threading with master-thread IO.
23    o change default MAX_NO_THREADS from 32 to 4 ;
24      and stop cleanly when MAX_NO_THREADS is too small.
25    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
26    
27    checkpoint58m_post
28    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
29       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
30    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
31       keep global_ocean.90x40x15 (for AD testing) with former secondary test
32       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
33    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
34        add MITgcm_tutorials (= code + all the tutorials)
35    o ecco, option to compute cost for total ssh (mean+anom)
36    o consistent with addition of ptracer and ssh in pkg/profiles
37    o profiles: adding ptracer and ssh
38    o testreport: change multi-test output-file name
39      (from output.txt.{name} to output.{name}.txt)
40    o profiles: now ok for mutli-tiles case
41    o seaice: add 4 parameters for different advection schemes for area,
42      (effective) seaice thickness, enthalphy, and snow height. Their default
43      is the standard parameter SEAICEadvScheme
44    o calc_gw:
45     - add cosFacU in zonal viscous flux (harmonic.visc.).
46     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
47       of tutorial_plume_on_slope.
48    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
49    o calc_gw: true flux-form, account for horizontal grid spacing.
50      update rotating_tank results, but not plume_on_slope (affected at
51      truncation level, 11 digits).
52    
53    checkpoint58l_post
54    o calc_gw:
55     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
56     - remove side-drag for now (need to fix it); update plume_on_slope results.
57     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
58    o commit code to make SST/SSS weights spatially variable
59      (based on either variable in-situ or variable initial T/S weights)
60    o pkg/ecco:
61      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
62        now based on horizontally varying weights wthetaLev, wsaltLev
63      * cost_averagesflags now returns year indices in addition to day, month
64      * sflux balance is performed on annual basis
65        (sflxumm, sfluxmm2, bal_sfluxmm)
66      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
67        including separate counting and multipliers
68    o pkg/rbcs
69      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
70    
71    checkpoint58k_post
72    o testreport:
73     - always build in dir. "build" (if not there, mkdir build instead of building
74       & running in input)
75     - run in dir run (if it exists), in build otherwise.
76     - call prepare_run (if input/prepare_run exists)
77     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
78    o pkg/exf modifications to interpolation and rotation routines for more
79       reasonable treatment of North Pole singularity: for tracers North Pole
80       value is set to northernmost zonal-mean value, for zonal velocity it is
81       set to zero, and for meridional velocity it is set to northernmost value.
82    o pkg/exf/exf_check_range.F
83     - add tile index to diagnostics and move stop statement to the very
84       end of the routine.
85    o pkg/diagnostics: (diagnostics_main_init.F)
86      define title of isomorphic variables according to the current config.
87    o pkg/thsice with pkg/seaice dynamics:
88    - fix domain of computation (interior only, required for exf) and do exchanges
89    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
90    o towards a standard way of dealing with multi-threading in MONITOR
91      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
92    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
93       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
94    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
95    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
96    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
97       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
98    o tracer advection:
99     - clean-up and simplify calc_common_factors.F
100     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
101       advection subroutine (but still not used within DST advection S/R)
102    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
103    
104    checkpoint58j_post
105    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
106      from file (collects calls previously in FORWARD_STEP)
107    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
108    o adjoint store dir. adjusted accordingly
109    o genmake2
110      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
111    
112    checkpoint58i_post
113    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
114      on wind stress (SEAICEstressFactor defaults to 1.)
115    o Total number of Timers is finite (<=40): comment out 2 non-essential one
116      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
117    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
118      on CS-grid: no longer loosing mass.
119    o exf & curvilinear-grid: no longer modify longitude xC & xG.
120    o pkg/ggl90: fix sloppy output and fix a bug
121    o pkg/seaice: added SEAICEuseEVPpickup parameter
122      - Set to false in order to start EVP solver with
123        non-EVP pickup files when using SEAICEuseEVP
124      - fix sign error in diffusion in seaice_calc_rhs
125    
126    checkpoint58h_post
127    * Modifications for bottom topography control
128      o replace hFacC by _hFacC at various places
129      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
130      o add non-self-adjoint cg2d_nsa
131      o update autodiff support routines
132      o re-initialise hfac after ctrl_depth_ini
133      o works for 5x5 box, doesnt work for global_ocean.90x40x15
134    * Adding verification for 5x5 box (4-layer) bottom topography control
135    
136    checkpoint58g_post
137    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
138       used for mean seasonal cycle, mean diurnal cycle); add an example
139       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
140    o pkg/ggl90:
141      - add parameter (minimum surface kinetic energy)
142      - fix bug (avoiding division by zero)
143    o couple pkg/thsice to pkg/seaice:
144      - modify advection in seaice to accomodate new scalar fields to be advected
145      - only muliDimAdection scheme work with seaice/thsice
146      - mapping of thsice-variables to seaice-variables, back and forth
147      - does not break the verification experiments, but does not give the
148        desired results either
149    o pkg/seaice
150      - make (default) second order advection a bit less confusing?
151    
152    checkpoint58f_post
153    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
154      to pkg/seaice):
155      - new routines thsice_map_exf and thsice_get_exf provide the interface
156      - add an additional formal parameter to thsice_solve4temp
157    o pkg/exf:
158      - add new fields wspeed, snowprecip (to be able to couple to thsice)
159      - correct Stefan-Boltzmann constant
160      - new parameter for longwave surface emittance
161      - separate some stuff from exf_bulkformulae into new routines  
162        exf_radiation, exf_wind
163      - add new parameters and constants: longwave emissivity for ocean, ice
164        and snow, evaporation parameters over ice
165      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
166        either wind from stress or stress from wind
167    o pkg/thSIce:
168    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
169    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
170       and THSICE_CALC_THICKN
171    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
172    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
173      to make debugging easier.
174    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
175    o pkg/bulk_force:
176      - clean-up comments and parameters ;
177      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
178    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
179      generate new output for test-experiment: aim.5l_cs.thSI
180    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
181      testreport accordingly
182    
183    checkpoint58e_post
184    o SEAICE_CGRID adjoint done
185    o R_STAR adjoint implemented.
186      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
187      * need to sort out init. of h0facc, etc.
188    o Make pkg/profile fully independent of ecco,cost, etc. stuff
189      to be able to use it in pure forward.
190    
191    checkpoint58d_post
192    o upgrade simple test-experiment to tutorial example:
193     step.1: duplicate the experiment and (step.2) will remove the old copy.
194      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
195      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
196      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
197      tutorial_global_oce_biogeo    <- copy of dic_example
198      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
199      tutorial_plume_on_slope       <- copy of plume_on_slope
200      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
201      tutorial_global_oce_optim     <- empty for now (David ?)
202      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
203     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
204    o correct a sign problem in cost_scat.F
205    o obcs and ptracers: fix boundary conditions for advections schemes
206      with larger stencil
207    o thsice adjoint: start
208    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
209      completeness
210    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
211      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
212    o ptracers adjoint:
213      * avoid extensive recomputatations
214      * fix missing re-init. of gptr (missed by TAF)
215    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
216      me to turn off the excessive output to STDOUT that this package produces
217    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
218      and add those terms in Vector-Invariant formulation.
219    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
220      if the control period (xx_hfluxperiod etc) is 0
221    o in profiles pkg, clean routines and fix details
222    o in ecco pkg, reading ssh data:
223      fix problem in case the model does not start at iter0=0
224    o fix mnc-pickup/restart for ptracers
225    o new package prifiles:
226      code to compute profile-based cost by Gael Forget
227      (modifs in ecco, ctrl, autodiff)
228    o Benign bug fix in initialization (spotted by M. Mazloff) of
229      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
230    
231    checkpoint58c_post
232    o adjoint: finish NLFS adjoint and provide reference output in
233      verification/global_ocean.90x40x15/results_ad_nlfs
234    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
235      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
236      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
237      with SEAICE_CGRID defined.
238    o move calendarDumps from "data" to "data.cal" and clean-up the code
239      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
240    o add useEXF & useCAL flags (for now, set in hard-coded way)
241    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
242      (were missing in NH mode, and wrong in quasihydrostatic mode).
243      waiting for Chris updated version of calc_gw to add those CALLs.
244    o fix bug in quasihydrostatic S/R ;
245      add a test for this option: global_ocean.90x40x15.qshyd
246    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
247      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
248    o add on/off flag useOffLine for package OFFLINE
249    o seaice:
250      - modify advection so that it works also on the C-grid
251      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
252        problem in multi-tile runs with C-grid
253      - add flags for clipping ice velocities and/or masking solver forcing
254      - fix drag (ocean on ice) formulation and a bug that caused noise in the
255        C-grid solver
256      - added a few comments to seaice_diffusion.F
257      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
258        are now exclusive)
259      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
260        required re-ordering the code a little:
261       + make DAIRN global variable (defined in SEAICE)
262       + move computation of the viscosities eta and zeta into a new separate
263         routine (because I need to recompute them in seaice_ocean_stress.F)
264    
265    checkpoint58b_post
266    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
267      update output.txt of exp. aim.5l_cs.thSI
268    o various mnc cleanups and improvements:
269      + shrink lookup tables by factor of ~4
270      + better error reporting when running out of lookup space
271      + able to handle longer path/file names (up to 500 chars)
272    o adjoint:
273      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
274      - TBD: "hidden" mom_vecinv recomp. in dynamics
275    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
276     (allow to differentiate between forcing components using new integer flags:
277      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
278     and add new flag to put Dissipation tendency out of Adams-Bashforth.
279    o ecco
280      - enable trend removal from SSH anomaly obs.
281    o adjoint
282      - a fix for PmEpR when #undef EXACT_CONSERV
283      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
284      - try to fix "hidden" recomp. in forward_step for NLFS
285        (NLFS seems broken sometimes after I checked it in)
286    o seaice:
287     - add c-grid version of the dynamic solver:
288       + three new routines that are the c-grid substitute lsr, dynsolver
289         and ostres
290       + put a few fields that were local to dynsolver into global common
291         blocks, so that I can move the computation of stresses etc into
292         seaice_lsr (saves coding but may break the adjoint).
293     - replace more hardwired parameters by runtime parameters
294     - add ice masks that mask the rhs of the implicit solvers where there
295       is no ice (commented out in seaice_dynsolver, because i am not sure
296       if this works properly), eventually this should replace the clipping
297       of ice velocities in seaice_dynsolver to +/-40cm/s.
298    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
299      include it only where its needed
300    o move balancing of fluxes before the call of external_forcing_surf
301    o seaice:
302      - correct units of turning angles (now they are really in degrees)
303      - move computation of GWATX/Y out of main routine into dynsolver
304      - initialize GWATX/Y in seaice_init
305    o Apply mask on Fresh-Water flux (needed for SSH forcing).
306      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
307    o seaice: add runtime flags for turning angles (default to zero)
308    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
309      and trend from exf forcing and ctrl control adjustments
310    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
311      (since checkpoint57x_post)
312    o change the default rotation period to 86164.s = the Earth rotation
313    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
314      and based on a reference stratification. Tested within hs94.cs-32x32x5.
315    o seaice advection: add code for choosing between the default (2nd order
316      central differences) and multiDim advection schemes provided by
317      pkg/generic_advdiff
318    o seaice:
319      - removed all references to SEAICE_GRID.h fields from
320        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
321        (cubed-sphere configuration will change a little)
322      - grid computations in seaice_init are obsolete now.
323      - cleaned up code a little so that is easier to read (hopefully).
324      - added new (better?) discretizations of default advection and diffusion
325        (turn on with SEAICEuseFluxForm)
326      - replace 1 in 3d global fields by kSurface in growth.F
327      
328    checkpoint58a_post
329    o seaice:
330      - bug fix in advect.F
331    o shelfice:
332      - separate shelfice load anomaly from pload (breaks with time
333        dependent forcing), => introduce constant field shelficeLoadAnomaly.
334        Its default is 0., but it may be computed more cleverly from (unknown)
335        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
336        done offline. A good approximation of the pressure load anomaly is
337        necessary to avoid large initial adjustment processes underneath
338        deep-reaching shelfice.
339      - small fix in ISOMIP shelfice_thermodynamics
340      - add more sophisticated thermodynamics of Hellmer (1989), this is
341        now the default
342      - give a few constants more intuitive names
343    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
344      if bulk formulae are used in long integration (especially EmPmR). Turn
345      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
346      if balancePrintMean, the imbalance that is substracted is printed to
347      STDOUT.
348    o fix bug (typo) in obcs_apply_eta.F
349    o add a new package shelfice which enables us to model the circulation
350      underneath shelf-ice with draughts of hundreds of meters.
351     - works
352     - to do: + include improved thermodynamics
353              + check whether kSurfC (from model/inc/SURFACE.h) can be used
354                instead of new field kTopC
355              + can we use topoFile, Ro_surf and existing code in ini_depth.F
356                instead of new field R_shelfIce and new code in ini_depth.F
357                and ini_mask_etc.F?
358              + adjust vertical mixing schemes?
359    o seaice pkg:
360     - add a cpp-flag to include a simple formula for a salinity dependent
361       freezing point of sea water at the surface
362     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
363       meridional stresses are now different (and hopefully correct)
364    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
365       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
366       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
367    o pkg/diagnostics: add options and parameters for regional-statistics
368       diagnostics ; define regions by reading a region-mask from a file
369       (might add other options later)
370    o pkg/bulk_force:
371     - add option and parameters to use AIM surface-flux formulae.
372     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
373       others forcing fields (defined in PARM05, parameter file "data") are loaded
374       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
375     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
376     - use the right EXCH call for uwind,vwind (to work on CS-grid).
377     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
378       and parameters (note: calcWindStress replaces .NOT.readwindstress).
379     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
380    
381    checkpoint58
382    o add "--embed-source" option to genmake2 which, when the supporting
383      tools can be compiled (as determined by genmake2) will turn on the
384      embed_files package which then embeds the entire MITgcm source code
385      (*.[fFhc] + Makefile) used for the build within the executable
386      - requested by CNH but off by default
387      - adds a paltry <9MB to the mitgcmuv executable in most cases
388      - only writes the output when useEMBEDSRC in eedata is true
389    o clean up 3-dim. relaxation codes:
390      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
391      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
392      * Thanks to Tom Haine for testing!
393    
394    checkpoint57z_post
395    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
396      affects output (@ truncation level) of exp. plume_on_slope ; updated.
397    o fix the pickup behavior for obcs in combination with ptracers
398    o fix a bug in ptracers_external_fields_load
399    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
400      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
401    o transfered surface NH pressure to eta field (if exactConserv).
402    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
403         and update lab_sea output.txt file.
404    o completing 3-dim. relaxation code: additional term
405         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
406      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
407      * At compile time, in "EXF_OPTIONS.h" set
408          #define  ALLOW_CLIMTEMP_RELAXATION
409          #define  ALLOW_CLIMSALT_RELAXATION
410      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
411          tauThetaClimRelax3Dim = 15552000.0,
412          tauSaltClimRelax3Dim  = 15552000.0,
413      * 3 cases:
414          1) Use a constant-in-time 3-dim. field
415          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
416          3) Real-time relax. to time-evolving prescribed field
417    o Adding Laplacian-type smoothness constraint on
418      initial and boundary (forcing) controls (ic, bc)
419      * enable at compile-time via
420        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
421      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
422      * Absolute scale somewhat unclear so far
423      * no area weighting was included since no other cost term does so far
424    
425    checkpoint57y_post
426    First step for a NLFS adjoint
427    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
428    o new init. routines for calc_r_star, calc_surf_dr
429    o still need to deal with ini_masks_etc
430    o testreport seemed happy
431    checkpoint57y_pre
432    
433    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
434    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
435    o add new offset feature to offline pkg (plus minor cleanup)
436    o cfc fixes for final year of integration
437    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
438      be in GCHEM_OPTIONS).
439    
440    checkpoint57x_post
441    o fix testreport Pb in multiple test experiment.
442    o cleanup our namelist syntax in verification:
443      - make it more F95 standards compliant (some work still needed)
444      - allows the vast majority of our tests to work with gfortran
445    o Non-Hydrostatic:
446     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
447     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
448    o Allow to apply AB on T,S rather than on AB(gT,gS):
449     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
450     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
451       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
452     - need a "clever" read_pickup to restart from the other AB formulation
453    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
454    o remove some unused variables (reduces number of compiler warnings)
455    o adjoint
456      * Disable useVariableViscosity for adjoint for time being
457        (there are a number of extensive recomputations)
458      * Initialize certain variables needed for adjoint
459    
460    checkpoint57w_post
461    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
462                 fix the singleCpuIO RS version of MDSWRITEFIELD
463       and add a WARNING if using globalFiles=T with multi-processors.
464    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
465      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
466    o tracer advection scheme:
467      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
468       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
469       was not very convenient).
470      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
471       (further tests needed for the implicit DST & Flux-Limiter schemes).
472    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
473      and sRef for convenience, handy, when you want to initialize
474      ptracers in a large domain with a constant non-zero value. Also,
475      untangle ptracers_init.F a little.
476    
477    checkpoint57v_post
478    o change dome exp. to use variable viscosity in side-drag terms.
479    o remove all the files from the cfc_offline test since they are now
480      incorporated into tutorial_cfc_offline which has been producing
481      identical results for a few days of testing
482    o add new parameter: sideDragFactor to enable half-slip-side BC
483      and change side-drag S/R to use viscosity from mom_calc_visc
484      (can switch back by setting sideDragFactor=0.); affects results at
485      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
486       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
487    o vorticity & strain are now computed without masking, to account for
488      no-slip-side BC in variable viscosity calculation ; mask is applied
489      anyway later on, before computing advection/coriolis terms.
490    o modify exp4 to test new obcs support for reading from external files
491      and for passive tracers
492    o fix behavior of ptracers_monitor when monitor output is written to a
493      netcdf-file; still not independent of monitor.F (writes in the same
494      file).
495    o change default value of tRef (put a uniform, meaningful value for ocean
496      & atmos) and initialize sRef (was missing, as Martin mentioned).
497    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
498      to be proportional to enstrophy dissipation length.  Thus,
499       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
500      This is now consistent with Smagorinsky and with the manual.
501    
502    checkpoint57u_post
503    o OBCS and PTRACERS: add open boundary support for passive tracers
504      - either use homogenous (pseudo) v.Neumann conditions or prescribe
505        OB-values from file; this is not different from the way theta and salinity
506        are treated
507      - however, Orlanski-radiation conditions are not supported, and the model
508        will stop if you use pTracers and Orlanski at the same time.
509      - beefed up the rountine obcs_external_fields_load: now only those open
510        boundary values are overwritten with values from files for which there
511        are really files, otherwise the OB-fields remain untouched. This makes
512        it possible to use different OBs at different ends of the domain (as
513        with EXF)
514    o reduce number of exch calls in shap_filt (s2).
515    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
516      truncation level) 4/5 MLAdjust test results (11&12 digits match).
517    
518    checkpoint57t_post
519    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
520    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
521      same truncation, independent of the face number: affects affects several
522      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
523    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
524      note that biharmonic viscosity + no-slip was not tested in any experiment.
525    o fix bug in non-linear free-surf side-drag ; generate new output for
526      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
527    o make mnc honor the writeBinaryPrec flag for most kinds of output
528    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
529    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
530      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
531    o add brackets in multi-terms sum to get same truncation, independent of
532      the face number (manage to get exactly same value of gU,gV at the cs-edge)
533      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
534    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
535      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
536      a maximum grid-scale Reynolds number.  Also, changes all length calculations
537      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
538      Suggested values of viscosity parameters found in mom_calc_visc.
539      Many new viscosity diagnostics available.
540    
541    checkpoint57s_post
542    o Add clearing-house for viscosity calculations, mom_calc_visc and
543      correct numerous bugs in LeithD and Smagorinsky discretizations.  
544      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
545      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
546      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
547      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
548      The Strain-Tension form is now called with useStrainTensonVisc=.true.
549      ViscAhStrain and viscAhTension are now retired.
550    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
551    o In response to JMC's bug report, genmake2 now ignores any soft-links
552      that it finds in the *current* directory when searching for files.
553      Soft-links found in any other source directories will still work as
554      they did before.
555    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
556      a C routine to unlimit the stack size
557    o mnc-ify pkg/aim snapshot vars
558    o mnc-ify pkg/land as requested by Daniel
559    o various changes to mnc including:
560      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
561      - output can now be grouped so that all files within a group
562          change the ITER portion of their names in lock-step together
563      - can now read ("global") PER-FACE (in addition to PER-TILE) files
564          and works with both EXCH1 and EXCH2 (but needs more testing)
565      - writing works for all verification test cases w/ g77 on Linux
566    
567    checkpoint57r_post
568    o make MNC variable initialization happen earlier
569    o add diagnostics for (almost) each term of the momentum Eq.
570    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
571    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
572    o remove MINIMAL_TAVE_OUTPUT option ;
573      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
574    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
575      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
576    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
577    o add time-dependent SST, SSS control
578    o cost terms in ecco/ modularized (new cost_generic.F)
579    o cost_averages routines are modularized (new cost_averagesgeneric.F)
580    o new infrastructure for seaice model vs. obs misfits in seaice/
581      * driver from the_main_loop.F is seaice_cost_driver.F
582      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
583      * gradient check in Exp. 6a of natl_box_adjoint/
584    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
585      (see README file)
586    
587    checkpoint57q_post
588    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
589    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
590      - bug was reported by Jean-Michel and Ian Fenty
591    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
592      update exp. cpl_aim+ocn output.
593    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
594      Needed for high-res. runs with large global files
595      to be able to limit tapelev size
596    o Changed some tests for adjoint:
597      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
598      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
599      * global_ocean.90x40x15/ back to default 3-level checkpointing
600    o Modifications to enable scripted COMMON to MODULE conversion
601      * verification/OpenAD/code/ has necessary scripts and description;
602      * converts, compiles and runs successfully;
603    
604    checkpoint57p_post
605    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
606    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
607      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
608    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
609    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
610      (was already the case for dissipation with mom_vecinv,
611       and also the case for grad.PhiHyd when staggered-timeStep)
612      This will allow to put dissipation out-off the AB time-stepping.
613     Unfortunately, affects truncation error. Update output of exp. that "fails"
614      (cg2d matching number) and leave the others for later: front_relax(10),
615      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
616      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
617    
618    checkpoint57o_post
619    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
620      (2) its ready to be documented during the 20050801 DocFest
621    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
622      for ideal_2D_oce and lab_sea on linux_ia32_g77
623    o set to #undef CTRL_SET_OLD_MAXCVARS_30
624      in global1x1_tot/code_seaice_adj to access indices 32, 33
625      (worth another tag)
626    
627    checkpoint57n_post
628    o adding precip control xx_precip 32
629    o adding swflux control xx_swflux 33
630    o Replacing 10 forcing penalty cost routines by 1 generic.
631    o Implementing partitioning in time-mean and variable adjustment
632      for atmos. state.
633    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
634    o in natl_box_adjoint:
635      * updated exp 1 to 10
636        (but does not have time-mean vs. variable split results yet)
637    o updated global1x1/*_seaice_adj/
638      to incorporate latest changes
639    o enable useSingleCpuIO for mdsio vector routines
640      (applies in particular to tapelev I/O)
641    o removed inefficient K-loop in all active_file*control*.F
642    
643    checkpoint57m_post
644    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
645      and advect_cs (use EXCH-2 and standard cs-32 grid files).
646    o pkg/exch2: filling of face-corner halo regions is optional
647      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
648    
649    checkpoint57l_post
650     tag before updating tutorials (pre-release-2)
651    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
652       for output and interpolation of input fields onto model grid)
653    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
654       Affects results of exp. rotating_tank ; update output.txt.
655    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
656          and taking the square quantity and/or using a fraction-weight field.
657    o fix aim_diagnostics_init.F mate numbers.
658    o add mnc output capability to diagnostics/diagstat and update
659      our cvsignore files for the ACSII output generated
660    
661    checkpoint57k_post
662    o lab_sea now uses diagnostics package and provides a suite of
663      new EXF diagnostics output.
664    
665    checkpoint57j_post
666    o exf
667      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
668        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
669        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
670      * extended diagnostics output
671        - now includes all EXF variables
672        - hs, hl moved to common block
673        - separate S/R for diagnostics, called after ctrl vector is added
674        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
675        - EXFqnet contains true Qnet (i.e. includes qsw)
676      * updated verif. lab_sea, global_with_exf
677      * Rearranging hflux (exf_mapfields -> exf_getforcing)
678        to ensure that diagnostics sees a true EXFqnet
679    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
680    o diagnostics pkg: change pointers so that 1 diagnostic can be used
681      several times with different frequencies.
682    o mnc-ify the thsice package as requested by Daniel Enderton
683      - the monitor--MNC output needs work
684      - many attributes need to be added (most are currently blank)
685    o mnc-ify theaim_v23 package as requested by Daniel Enderton
686      - many attributes need to be added (most are currently blank)
687    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
688    o add Sadourny like discretization to the 4th.O vorticity advection scheme
689    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
690      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
691         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
692    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
693     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
694    
695    checkpoint57i_post
696    o Diagnostics package was changed: diagnostic allocation is now deactivated
697      by setting an empty file name in the namelist (used to be by setting 0 frequency)
698    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
699      add 1rst Order upwind vertical Shear.
700    o add a quick fix for A/B checkpointing in OFFLINE mode
701    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
702      end-run around the C/Fortran linking horror in eesup/src/timers.F
703    o added pkg/runclock: allows user to terminate run based on wall clock
704    o added non-hydrostatic scaling parameter: nh_am2
705    o pkg/my82: futile attempt to make results compiler-independent by adding
706      some "_d 0", etc. no effect.
707    o for mnc output, fill the 'T' coordinate var with myTime and create a
708      separate 'iter' variable for iteration count
709    o pkg/diagnostics:
710      add new capability: output of Global/Regional & per-level statistics ;
711      tested against monitor output (including land & thSIce) on various exp.
712    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
713    
714    checkpoint57h_done
715      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
716      data.diagnostics, data.gchem, data.ptracers) is done.
717    
718    o pkg/diagnostics: prepare for Global/Regional statistics.
719      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
720    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
721      and rename it: DIFFERENT_MULTIPLE
722    
723    checkpoint57h_post
724    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
725    o pkg/diagnostics: change output frequency, now in seconds (instead
726      of Nb of iterations). This requires to change data.diagnostics.
727    checkpoint57h_pre
728    
729    o in mnc, let the user create the output dir if both mnc_outdir_date
730      and mnc_outdir_num are false
731    o add fflags() to pkg/diagnostics which allows one to specify, on a
732      per-file basis, the file precision [default behavior is unchanged]
733    o added diagnostics to pkg/kpp, including computation of mixed layer
734      depth based on a temperature/density criterion
735    o updated verification/natl_box to test the new pkg/kpp diagnostics
736    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
737    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
738    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
739      not mnc -- this mistake was found by JMC and is now corrected
740    
741    checkpoint57g_post
742    o add Adams-Bashforth 3rd Order time stepping:
743      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
744      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
745    checkpoint57g_pre
746    
747    o make lambda[Theta,Salt]ClimRelax spatially varying
748      (default remains spatially uniform constant based on tau)
749    o added new control variables
750      * init. uVel, vVel, etanN
751      * lambda[Theta,Salt]ClimRelax
752    o separate masks used for ctrl_pack/unpack 'from write_grid' output
753      (suggested by G. Forget)
754    
755    checkpoint57f_post
756    o add parameter "baseTime" = model base time = time at iteration zero
757      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
758      account for baseTime shift
759    o move Coriolis arrays from PARAMS.h to GRID.h
760    checkpoint57f_pre
761    
762    o mnc-ifying the seaice package
763    o introduced an alternative length scale calculation for use in the limiting
764      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
765    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
766    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
767      as well as grad(vort3).  Made it compatible with both approximate form
768      for the cubed sphere and full form of these gradients.  Added flag
769      useFullLeith to select between approximate and full form.  
770    o add "d0" in getcon.F to reduce differences between compilers/platforms
771      update output.txt of exp. fizhi-gridalt-hs
772    o change port_rand funtion to allow to set the seed.
773    o fix obscure MNC bug involving conversion between reals and integers
774      - it caused no problems with certain (eg. gcc, ifc) compilers but the
775        new version is now more standards-compliant
776    o adjoint-related modifications
777      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
778      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
779      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
780    
781    checkpoint57e_post
782    o Adding eddy stress controls a la Ferreira et al.
783    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
784    
785    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
786      update output.txt of exp. fizhi-gridalt-hs
787    o add more "Z" dimensions and associated coordinate vars to MNC
788    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
789    o parameter calendarDumps: when set, approximate months (30-31 days) and years
790      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
791      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
792      months and years.  Requires pkg/cal.
793    o diagnostics: add pickup functionality
794      - off by default for backwards compatibility
795      - current version only uses MDSIO -- MNC will be added
796    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
797    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
798    
799    checkpoint57d_post
800    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
801    o modify verification/ideal_2D_oce so that it tests the creation of mnc
802      output from the diagnostics package
803    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
804    o make genmake2 more portable by using ".$FS" instead of ".f" for more
805      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
806    o add coordinate variables to the MNC output from the diagnostics package
807    o change MNC-flags default value: true when useMNC=TRUE
808    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
809      the ability (off by default) to read the grid information using MNC
810    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
811    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
812    o do snap-shot diagnostics at the middle of the time-interval (instead of
813      at the end).
814    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
815      new test for AIM with thSIce + slab-ocean
816    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
817    o move state variable diagnostics to the beginning of the time step ;
818      (note: still needs some work specially for snap-shot diagnostics)
819      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
820    
821    checkpoint57c_post
822    o Change testing option (-ieee) to get closer agreement between g77 & ifort
823    o generate new output.txt files on faulks with g77 & the new -ieee option
824    checkpoint57c_pre
825    
826    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
827      update output.txt of exp. global_ocean.90x40x15
828    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
829      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
830    o add saltFlux(+File) forcing capability with periodicExternalForcing
831    o allow to use pkg diagnostics for GM-Redi & ThSIce output
832    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
833    o improvements for the MNC output from DIAGNOSTICS:
834      - correct handling of the unlimitied dimension
835      - all dims now have associated coordinate variables
836      - variables located at U, V, and Corner ("Z") points are now written
837        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
838        *all* data points are output
839    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
840    o added pkg/seaice/seaice_monitor.F
841    o mdsio_readfield.F can now read files visible only to master MPI process.
842    o pkg/seaice: some test code for ice-modified ocean stress
843    o exf_getffields interpolation defaults to bilinear for all scalar forcing
844      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
845      spurious negative numbers for precipitation and humidity.  Will cause
846      some small numerical differences for integrations using pkg/exf/exf_interp.F.
847    o pkg/ctrl/
848      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
849        May be enabled via doPackDiag
850      *  introduce z-scaling of
851         + gradient (doZscalePack) and
852         + control (doZscaleUnpack)
853    o pkg/mdsio/
854      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
855      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
856    
857    checkpoint57b_post
858    o simplify options in diagnostics_fill arguments (remove weird combinations)
859    o fix MNC coordinate variables so that they now contain per-face index
860      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
861      general, EXCH2 grids are only aligned to a "local" coordinate system
862    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
863    o Implement instantaneous output within pkg diagnostics:
864      setting a negative frequency in data.diagnostics produces
865     "snap-shot" output (as opposed to time-average if freq > 0)
866    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
867      NOTE: change ptracer diagnostics name: use 2 characters to work with
868            more than 9 tracers. Add also diagnostics of advect & diffus flux.
869    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
870      becomes the coordinate variable for the 'T' dimension
871    o add CF-style coordinate variables to MNC
872      - just a first cut:  numbers are meaningless on the cubesphere and
873        missing along the T axis but otherwise it works!
874    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
875    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
876    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
877      this is based directly on what the model compute, so that the content of
878      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
879    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
880    o clean up build options files for SunOS, in particular
881      - remove -traditional from xmakedepend
882      - change -xarch=v9 to -xarch=native for f77
883      - restore use of make (not gmake)
884      - add CC=gcc if using g77
885    o changes per discussion of AM, JMC, & EH3 today:
886      - move redundant "grid" variables out of "state" -- in preparation of
887        creating proper CF-style coordinate variables and in recognition
888        that any/all grid variables can be easily copied (eg. w/NCO) from
889        the grid files into any of the other NetCDF files
890      - *always* output grid variables with MDSIO (this will eventually be
891        changed)
892      - output MNC grid file if useMNC is true
893    o every instance of _END_MASTER() has been found and replaced with
894      _END_MASTER( myThid ) in order to satisfy certain picky Sun
895      preprocessors
896    o re-arrange diagnostics pkg initialisation:
897     - allow each package to extend the available diagnostics list
898     - add some checking and fix small problems (multi-threaded, ...)
899     - new S/R diagnostics_fill (replace fill_diagnostics):
900       look through the short list of active diag. (instead of the long list)
901       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
902    
903    checkpoint57a_post
904    o this set of changes restores TAMC compatibility
905      tested for global_ocean.90x40x15 adjoint on trough
906      (what a pain)
907    
908    checkpoint57a_pre
909    o some modifs in tools/build_options for sunos
910    o call ctrl_pack for ctrl at end for optimcycle=0
911    
912    checkpoint57
913    o add horizontal bi-harmonic viscosity for vertical velocity
914      - new parameter viscA4W (defaults to viscA4)
915      - affects only non-hydrostatic code
916      - to be done: no-slip lateral boundary conditions
917    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
918    o implement Implicit Vertical advection for pTracers
919    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
920      (implemented also for implicit vertical diffusion & advection)
921    o OBCS: extend application of tracer open boundary conditions
922      to a strip beyond the boundary of width Olx/Oly
923    o add call monitor to TAF set of required calls (flow directives)
924      and include in natl_box_adjoint
925    o untangle a few ifdefs related to cost, ctrl, autodiff
926      untangel a few ALLOW_ECCO_OPTIMIZATION
927    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
928      (theta2, salt2 in ecco_cost_weights)
929    
930    checkpoint56c_post
931    o OBCS as control variables
932      - update ctrl_ad_diff.list, obcs_ad_diff.list
933      - remove balance of obcs controls from default
934      - fix index bug nobcs in ctrl_init
935      - fix dummy fields filen in ctrl_pack
936      - add dummy weights for obcs
937    o lsopt: comment out fort.94 output
938    o optim:
939      - remove unnecessary header files
940      - adjusted namelists
941      - add xerbla.F to Makefile
942    o exf:
943      - multiple modifications of exf_check_range
944      - unit change in exf_init_runoff from [m/year] to [m/s]
945    o mdsio:
946      - i/o-vector change debugLevel from debLevA to debLevB
947    
948    checkpoint56b_post
949    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
950      is called from DO_THE_MODEL_IO
951      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
952      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
953      - clean up PTRACERS_WRITE_TIMEAVE a little
954    o add another verification experiment that tests both the cfc-pkg and
955      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
956      reactive tendencies treated inline with regular timestepping
957    o testreport previously did a lousy job of comparing small numbers, so
958      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
959      implemented in the little c-progam tmp_cmpnum.c which is embedded in
960      testreport.
961    o ptracers_monitor: bug fix for MPI
962    
963    checkpoint56a_post
964    o GCHEM: finish reorganizating the package
965      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
966        (introduces another 3D-array for each passive tracer, but only if
967        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
968        gchemTendency is not needed because the timestep is done separately)
969      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
970      - GCHEM is now---more or less cleanly---separate from PTRACERS
971      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
972        so clear to me how that should be done in a general way.
973    o CFC: improve formatting of output in CFC_ATMOS
974    o PTRACERS:
975      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
976        that ALL experiments with ptracers enable can be checked. This makes
977        GCHEM_MONITOR obsolete.
978      - include a runtime parameter PTRACERS_monitorFreq that defaults to
979        monitorFreq
980      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
981    o add PTRACERS (PTR0[1-5]) to testreport output
982    o exf_check_range:
983      * default changed to .TRUE.
984      * will check values for niter0 if debLevA, every timestep if debLevB
985      * STOP in exf_check_range if 'out of range'
986      * range chosen generous to allow for potential extema
987      TBD: a version with stricter range
988           permitted range would be runtime parameters
989    o GMredi:
990      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
991      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
992      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
993    o GCHEM:
994      - move call to GCHEM_FORCING_SEP, so that it is now called before
995        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
996      - introduced a useGCHEM runtime flag and applied it everywhere.
997      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
998        this flag is now only visible within GCHEM-pkg routines.
999      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1000        be replaced by a 3D array that is computed before thermodynamics; for
1001        this, the tracer ID iTracer had to be included into the parameter list
1002        of ptracers_forcing
1003      - set up forward_step to call gchem_forcing, that will replace
1004        gchem_forcing_int in ptracers_forcing
1005      - cleaning up
1006    o small cleaning of exch2: remove files that are also in eesupp/src
1007    
1008    checkpoint56
1009    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1010    o mnc: cleanup "full" files--fixes out-of-memory problem
1011    o ECCO-GODAE
1012      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1013      * fully merged and updated from SIO code
1014        windstress sign change affects
1015        - exf_inscal_[u/v]stress
1016        - sign of xx_tau[u/v] adjustments
1017        - signs in cost_scat
1018      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1019      * natl_box_adjoint updated and compressed
1020      * 2-level checkpoint switch added
1021        (tested in EXP. 1 of natl_box_adjoint)
1022      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1023    o SVD
1024      * first complete, non-hacked version for SVD calculations
1025      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1026        performed via direct access files admtlm_vector.it????
1027        (via ctrl_[un]pack)
1028      * optimcycle is used for ARPACK iteration counter
1029        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1030      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1031        and add linear transforms where necessary
1032      * controls are initial/final SST, SSS (can be extended; need to check
1033        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1034    o mdsio: filename info to both stderr, stdout
1035    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1036      from sign change
1037    
1038    checkpoint55j_post
1039    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1040      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1041    o add consistent build directories and .cvsignore files to verification
1042    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1043    o make all subroutines 30 or less characters in length for certain older
1044      compilers to work (a thorough search only turns up two routines in
1045      pkg/ptracers)
1046    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1047      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1048    
1049    checkpoint55i_post
1050    o change arrays for total vertical diffusivity (2.D if explicit,
1051      3.D if implicit) ; each ptracer uses its own background value.
1052    o added mnc/NetCDF output capability to ocn_compon_interf
1053      - added bits to verification/cpl_aim+ocn so that it can run on
1054        ITRDA and other clusters without the mpirun "-wd" option
1055    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1056      configuration
1057    o give MNC the ability to create additional files rather than
1058      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1059      - the default is just less than 2GB which is a practical limit
1060        on many systems
1061    o Compute the non-local term using either KPP vertical diffusivity (=default)
1062       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1063    
1064    checkpoint55h_post
1065    o add verification test "vermix"
1066    o remove all the *_ioinc flags and replace with the single global
1067      outputTypesInclusive flag
1068    o allow to set a vertical profile of vertical diffusivity for T & S
1069    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1070    o useMNC moved from data.mnc to data.pkg
1071    
1072    checkpoint55g_post
1073    o Renaming carbon AD experiments to comply with testreport conventions
1074    o Updating adjoint of Held-Suarez hs94.1x64x5
1075    o Fixing directives for non-ECCO forward_step, after ECCO directives
1076      have been fixed to avoid recomp. of do_oceanic_phys
1077      Works well for global_ocean.90x40x15,
1078      but recomp. issue remains for carbon
1079    o Updating adjoint output for natl_box_adjoint after
1080      pkg/ecco has been modified (see taga c55d_post)
1081    
1082    checkpoint55f_post
1083    o rename to timeave_init_fixed
1084    
1085    checkpoint55e_post
1086    o some delicate re-shuffle of store directives to avoid one
1087      extra call of do_oceanic_physics
1088      affects ecco_the_main_loop.F, do_oceanic_physics.F
1089      checkpoint_lev1_directives.h
1090    o NB: this may break global_ocean adjoint temporarily,
1091      but it is clear how to fix it. Will do later, need this now.
1092    
1093    checkpoint55d_post
1094    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1095    o ecco_cost_weights is modified to 1x1 runs
1096    o modifs to allow observations to be read in as
1097      single file or yearly files
1098    o enable to read exf forcing fields as either
1099      single file or yearly files (flag useExfYearlyFields)
1100    checkpoint55d_pre
1101    
1102    o switch between 2-level and 3-level checkpointing
1103    o add ability of MNC to write local and "partial" (eg. 2D slices where
1104      the full 3D field is never actually stored) arrays to NetCDF files
1105      with the correct (that is, the complete multi-dimensional) set of
1106      array indicies
1107      - used in mom_vecinv() to write the diagFreq output
1108      - tested (demonstrated) in verification/aim.5l_cs
1109    o further mnc-ification
1110      - add verification/lab_sea to the list with mnc setups
1111      - fix undefined mnc v-names in cd_code
1112      - add kpp to mnc output (both snapshot and timeave)
1113    o non-hydrostatic code
1114      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1115        in calc_gw.F
1116      - defaults to viscAh
1117      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1118        friction or Leith) in non-hydrostatic mode, as long as there is
1119        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1120    o pkg/cost
1121      extend simple cost functions to treat time mean quantities
1122      (T,U,V) via cost_accumulate_state from cost_tile
1123    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1124        be 2 times larger than the minimum size the advection scheme requires.
1125        now get a perfect conservation of salt in advect_cs test-exp (updated)
1126    o GGL90 (Gaspar's TKE mixed layer)
1127      - add horizontal diffusion of TKE, requires exchanges in
1128        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1129        default. In OPA there is no horizontal diffusion of TKE but the
1130        mixing coefficients are computed from a horizontal average of TKE of
1131        6 points or so. I think that diffusion has a little more physical
1132        justification.
1133      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1134        was in vain)
1135      - mask tke-variable in ggl90_init
1136    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1137    o fix biharmonic diffusion on CS-grid.
1138    o more obcs stuff
1139      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1140        for reading boundary values. This routine is called from
1141        obcs_prescribe_read
1142      - updated obcs_check
1143      - changed sponge layer relaxation parameter units for days to seconds
1144      - turned off sponge layer by default
1145      - changed argument list of OBCS_CALC to myTime+deltaTclock
1146      - fixed about 35 bugs in obcs_external_fields_load
1147    
1148    checkpoint55c_post
1149    o obcs stuff
1150      - new runtime flags useOBCSprescribe, useOBCSbalance
1151      - re-arranged obcs_calc
1152      - moved exf_getobcs to obcs_prescibe_read
1153        obcs_prescibe_read is called after ORLANSKI stuff
1154        and independent of it (executable can contain all).
1155      - updated obcs_check
1156      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1157        These may be necessary only if tangential velocities are
1158        prescribed at OB, not sure, needs testing.
1159    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1160      which simplifies the calls and passes the ifc check-bounds test
1161    
1162    checkpoint55b_post
1163    o add a 2D scalar, Z location, exchange_2 routine.
1164    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1165      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1166      affects advect_cs results (for the wrong reason): update output.txt
1167    o use a more standard discretization for biharmonic viscosity ;
1168     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1169      affects results of dome set-up: update output.txt
1170    o fix gad_advection.F (CubedSphere part), back to version 1.23
1171    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1172    
1173    checkpoint55a_post
1174    o merged code to
1175      * prescribe/read time-dependent open boundaries
1176        (works in conjunction with exf, cal)
1177      * sponge layer code for open boundaries
1178      * each boundary N/S/E/W now has its own CPP option
1179        (healthy for the adjoint)
1180    
1181    checkpoint55
1182    o up-to-date adjoint of previous breaks
1183      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1184      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1185      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1186      - carbon: * remove tr1-related adjoint verification
1187                * add ptracer as control variable
1188    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1189      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1190    
1191    checkpoint54f_post
1192    o in verification/carbin/ remove experiment related to
1193      ALLOW_PASSIVE_TRACER (array tr1 etc)
1194      code_ad/ input_ad/ results_ad
1195    
1196    o add two new packages
1197      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1198        + subject to optimization (memory)
1199      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1200        + subject to reordering (many GOTOs in the original code)
1201        + so far opps is called for every (i,j) point, and then operates in
1202          the vertical; one may want to reorder the scheme in order operate in
1203          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1204          fields)
1205    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1206      - all verification tests compile and run with linux_ia32_g77
1207      - defaults are compatible with current input files--nothing
1208        should change if you were not previously using MNC
1209      - MNC output has been added in numerous places (eg. timeave)
1210        but there are still a few writes not yet do-able with MNC
1211        (this is in progress)
1212      - flags now allow for either/or/both use of MDSIO and MNC and
1213        documentation will soon follow
1214      - numerous small formatting cleanups for ProTeX
1215    o add version info (via BUILD_INFO.h) to MNC and stdout
1216    
1217    checkpoint54e_post
1218    o add two new packages
1219      - pp81 (Packanowski and Philander, 1981), Richardson number and
1220        stratification dependent mixing
1221      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1222      - these scheme operate in a similar manner as KPP (without ghat, of
1223        course), however there is only one diffusivity that is used for both
1224        temperature and salinity (and passive tracers)ç
1225    o add offline package
1226    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1227      provided by Stephanie Dutkiewicz
1228    o genmake2: add ability to search for C compilers and cleanup test output
1229      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1230    
1231    checkpoint54d_post
1232    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1233    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1234      leading to additional shift by 5 days each year of integration
1235       (i.e. leading to considerable offset over the years)
1236    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1237    o start with no AB and no initial filtering (staggerTimeStep):
1238      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1239    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1240      (external loading & cpl import/export stay in forward_step.F)
1241    o update coupling interface to work with new staggerTimeStep
1242    o change MDSIO ptracers_pickup.
1243    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1244    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1245    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1246    
1247    checkpoint54c_post
1248    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1249      this affects (truncation error) output.txt of test-exp:
1250       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1251    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1252    o change Qnet to always be the net heat flux, (+upward).
1253      affects (truncation error) output of natl_box exp.: updated
1254    o define the max number of passive tracers in PTRACERS_SIZE.h
1255    o start to test mnc routinely in exp0
1256    o add sea-ice loading (sIceLoad) as a new forcing field.
1257    
1258    checkpoint54b_post
1259    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1260       impressive on Altix and Opteron systems)
1261    o diagnostics can now write NetCDF files through the mnc package
1262    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1263    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1264    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1265      affects (truncation error) output of lab_sea & natl_box exp.: updated
1266    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1267    
1268    checkpoint54a_post
1269    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1270    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1271    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1272    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1273      + internal_wave (shift in writing cg2d_ini_res)
1274    checkpoint54a_pre
1275    
1276    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1277      - modified verification/lab_sea and natl_box_adjoint accordingly
1278    
1279    checkpoint54
1280    checkpoint53g_post
1281    o prepare splitting of thermodynamics: store convect.counter in common block
1282    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1283      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1284    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1285    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1286    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1287    o restore adjointability
1288    
1289    checkpoint53f_post
1290    o modifications that affect AIM experiment results (update output.txt):
1291      - no advection of S at top interface Nr (pkg/generic_advdiff)
1292      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1293    o AIM pkg:
1294      - include stability function into surf.Flux derivative relative to Tsurf
1295      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1296    
1297    checkpoint53e_post
1298    o merged cylindrical coord configuration
1299    o added rotating_tank experiment
1300    checkpoint53e_pre
1301    
1302    checkpoint53d_post
1303    o faulks upgraded: re-generate output.txt that have changed:
1304       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1305    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1306    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1307    o added Sadourny discretization of Coriolis
1308      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1309      - re-enabled use of omega3 (useAbsVorticity)
1310    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1311      vector-invariant equations
1312      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1313    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1314      hopefully without new bugs
1315      - still to do: biharmonic friction for non-hydrostatic w
1316    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1317    o regenerated output for global_ocean_ebm (using -ieee)
1318    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1319      of mom_common/
1320      - simple re-arrangement of instructions within computing loop
1321    checkpoint53d_pre
1322    
1323    checkpoint53c_post
1324    o new version of coupler for AIM+thSIce and Ocean models
1325     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1326     - land: change Evaporation of snow
1327     - aim with thSIce: fix bug in snow-precip.
1328    o changes to calc_gw.F
1329     - bug fix for w^2 term near the bottom boundary
1330     - (hopefully) improve the lateral slip boundary condtions for use with
1331        partial/looped cells
1332      - because the bug fix changes two verification experiments anyway (exp5
1333        and plume on slope), change the lateral boundary condition from half slip
1334        to the value of no_slip_sides
1335    o ebm package wasnt quite up to the parallel task. Fixed that.
1336    o Adjoint of EBM package + verification
1337      * TLM OK
1338      * ADM not sufficient accuracy yet (needs further testing)
1339    
1340    checkpoint53b_post
1341    o Commiting new energy balance model to repository
1342      * package is pkg/ebm
1343      * verif. is verification/global_ocean_ebm
1344      * references are in ebm_driver.F
1345    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1346    C        Global thermohaline circulation. Part I:
1347    C        Sensitivity to atmospheric moisture transport.
1348    C        J. Climate 12(1), 71-82
1349    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1350    C        Global thermohaline circulation. Part II:
1351    C        Sensitivity with interactive transport.
1352    C        J. Climate 12(1), 83-91
1353    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1354    C        Destabilization of the thermohaline circulation
1355    C        by atmospheric eddy transports.
1356    C        J. Climate 7(12), 1870-1882
1357    o Will need long integration testing.
1358    checkpoint53b_pre
1359    
1360    o created pkg/mom_common in preparation for variable viscosity code
1361    o renamed and split ini_mnc_io
1362    o pkg/land: only liquid water can diffuse or run-off
1363    o AIM using land: soil wetness availability account for snow
1364    o added printMapIncludesZeros to EEPARMS namelist
1365    
1366    checkpoint53a_post
1367    o restore TAMC compatiility for exf_constants.h
1368      (no usage of _d in .h)
1369    o Additional storing in KPP in an attempt to fix
1370      TAMC problem with adjoint of KPP code.
1371      (no success...)
1372      Identical code works fine with TAF.
1373    o Fixed verification/natl_box_adjoint experiments.
1374      Initial conditions for Experiments 4 and 5 are now
1375      set to "SEAICE_initialHEFF=0", which is more reasonable,
1376      and hence gives results closer to that of Experiment 2.
1377      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1378    
1379    checkpoint53
1380    o stable checkpoint with up to date adjoint
1381      TLM tests only run for 1st grdchk at the moment. Its unclear if
1382      this is a code problem or a problem with resetting code for g_
1383      variables that is being autogenerated wrong.
1384      Otherwise:
1385       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1386       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1387         are both still in chaos following their security messes.
1388    
1389    checkpoint52n_post
1390    o various build (mostly genmake2) changes including:
1391      - ability to build/run more easily within Cygwin and MacOS X
1392      - more complicated Makefiles with a stronger dependence on Gnu Make
1393    o pkg/seaice modifications
1394      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1395        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1396        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1397      - changed proxy for geostrophic velocity and updated
1398        verification/lab_sea/results/* accordingly
1399      - removed ADI dynamic solver from pkg/seaice
1400      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1401        they caused a segmentation fault under certain circumstances
1402      - removed unused field WATR
1403    o bug fix in exf-package:
1404      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1405         now reflect that.
1406    o small fixes in the cal-package:
1407      - set reference date to first of January for the 'model'-calendar
1408      - failing of cal_CheckDate in cal_FullDate now actually results in a
1409        warning
1410    o small modifications in exf-package to increase flexibility:
1411      - change climtempfreeze from a constant to a runtime parameter that
1412        is specified in data.exf_clim (default = -1.9)
1413      - introduce runtime parameter windstressmax (default = 2.0) that is
1414        specified in data.exf
1415    o fix in pkg/thsice:
1416      - update Evap (Tsf changes) to be consistent with Latent heat flux
1417      - maintain snow precipitation unchanged (even if Tsf >=0).
1418     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1419    
1420    checkpoint52m_post
1421    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1422      this does not change any of the results, because myIter=0 in swfrac always
1423      lead to jwtype=2 (the default anyway), but the call makes little sense
1424      as a default
1425    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1426    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1427      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1428    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1429    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1430    o extending useSingleCpuIO option to work with new exch2 I/O format
1431      - old-style, missing-tile I/O is still accessible by defining CPP
1432        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1433    o monitor package can write to NetCDF files and/or STDOUT
1434    o fix re-definition bug in MNC_GRID_INIT_ALL()
1435    o doc/api_reference added
1436      - a framework for building an API Reference Manual using all
1437        the "protex" comments embedded in the code
1438      - see pkg/generic_advdiff, pkg/mnc for examples
1439    o MNC:
1440      - make myThid the last argument for all subroutines
1441      - new default for the grid files: NO halos
1442      - add useMNC and other run-time flags
1443      - separate per-file-group handling of the unlimited dimension
1444      - early initialization of MNC w/ flags read at the eeboot stage
1445        and lookup tables set in initialize_fixed
1446      - write all MNC output to a freshly-created directory
1447    o thermodynamics sea-ice (thsice) is now tested with testreport.
1448    o test exp. advect_cs: use the standard cs32 grid ; update output.
1449    o Added functionality to grdchk:
1450      pick global i,j,k position (or nearest wet) where to perform check.
1451    
1452    checkpoint52l_post
1453    o new land formulation:
1454      a) use ground enthalpy as prognostic variable to ensure exact
1455         energy conservation.
1456      b) account for water temperature and for latent heat of freezing
1457         in all processes (rain, run-off, ground storage)
1458      c) compute surface and ground temperature implicitly.
1459    o aim_v23 modification for new land model:
1460      a) Treat separately land / ocean / sea-ice surface fluxes
1461         to allow implicit computation of land & sea-ice surface temp.
1462      b) add snow precipitation.
1463    checkpoint52l_pre
1464    
1465    o fix problem (when 1 tile is empty) in min/max monitor.
1466    o fix bug in timeAve (u,vZetatave in common block)
1467    o no restoring terms under ice for pkg/seaice
1468    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1469    o bug fix for pkg/seaice pickups
1470    o change MNC call locations and add coordinate attributes
1471    o mask vorticity at the corner ; affects global_ocean.cs output
1472    o fix ini_curvilinear_grid ; test CS experiments with mpi
1473    o aim.5l_cs: modify sea-ice fraction input file ; update output
1474    o exf: Adding simple range check routine for exf fields after read
1475    
1476    checkpoint52k_post
1477    o removed top-level directory "diags"
1478      - we migrated these functions to pkg/timeave a long time ago
1479    o fixed bug introduced in pkg/monitor
1480    o accuracy ctrlprec = 32 insuffient for gradient checks using
1481      averaged fields (I/O via cost_averages)
1482      -> use ctrl.h in active_file*.F to control I/O precision.
1483    o paramter list of CALL ADTHE_MAIN_LOOP
1484    o added initial do_the_model_io to ecco
1485    o set all ...Freq to zero after cost_final
1486      taveFreq, dumpFreq, pChkptFreq
1487    o MAIN and ECCO differentiability restored
1488    
1489    checkpoint52j_post
1490    o fix nchklev in tamc.h for global_ocean...
1491    o Bringing flow and store directives up-to-date
1492    o Really weird thing!
1493      call do_the_model_io from the_main_loop with parameters
1494      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1495      TAF places a faulty re-call of initialise_varia
1496      after cost_final call which should not be there!
1497    checkpoint52j_pre
1498    
1499    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1500      error messages
1501    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1502    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1503      debug output
1504    o modfied mdsio_writefield.F to handle non-global files under exch2
1505    o update AIM Cubed-Sphere exp (aim.5l_cs):
1506      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1507    o update AIM Equatorial Channel exp:
1508      use standard aim_v23 pkg and change the SST fields to be more realistic.
1509    o globalFile now works with exch2
1510    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1511      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1512    o limit timeave output for hi-res integrations
1513    
1514    checkpoint52i_post
1515    o removed CPP_EEOPTIONS.h from verification/*/code
1516    o updated the tiling for global_ocean_pressure
1517    checkpoint52i_pre
1518    
1519    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1520      the old pkg/aim).
1521    
1522    checkpoint52h_pre
1523    o shortened offending lines in exch2_send_rx?.template
1524    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1525    o genmake2: add build & execute test for NetCDF code
1526    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1527      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1528    o added useSingleCPUIO flag to monitor.F and mon_out.F
1529    o added temporary hack for sea-ice dynamics on the cube:
1530      metric terms are ignored and it is assumed that
1531      there is no sea-ice on cube faces 1, 2, 4, and 5.
1532    
1533    checkpoint52f_post
1534    o added exch2 cube routines to pkg/exch2
1535    o modified hs94.cs-32x32x5 to use it
1536    o added new grid files to hs94.cs-32x32x5
1537    checkpoint52f_pre
1538    
1539    checkpoint52e_post
1540    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1541      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1542    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1543      to work with implicit vertical advection and AB ;
1544    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1545    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1546     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1547    checkpoint52e_pre
1548    
1549    o fix bug in impldiff when Nr=1 or Nr=2.
1550    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1551    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1552    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1553      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1554    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1555    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1556    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1557    
1558    checkpoint52d_post
1559    o re-tiled many expts to allow comparison in multi-processor mode
1560      - updated output accordingly
1561      - changed hs94.128x64x5 to use intial T from file rather than use the
1562        random number generator
1563    o add infrastructure in model routines for fizhi and gridalt packages
1564    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1565    o changes to permit hi-res, cubed-sphere, configuration
1566      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1567      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1568      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1569        of surface winds for the cube
1570      (A verification experiment, based on global_ocean.cs32x15, but with
1571       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1572       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1573       complete with example surface forcing files and matlab scripts to look
1574       at the output and compare it with that of global_ocean.cs32x15.)
1575    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1576       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1577       to conform to the common rule.
1578    o check-in the first version of the coupler + interfaces for multi-components
1579       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1580       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1581       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1582       - ocean and atmos. share the same horizontal grid (no interpolation).
1583       - exchanges between component and coupler is done in forward_step
1584    o new verification experiment, cpl_aim+ocn:
1585       coupled ocean - AIM atmosphere on cs32 grid.
1586    
1587    checkpoint52d_pre
1588    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1589    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1590    
1591    checkpoint52c_post
1592    o Fixing OPTIONS files for use of exf:
1593      - ALLOW_ECCO not needed
1594      - ECCO_CPPOPTIONS.h should not be included from
1595        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1596        as has been the case in the past
1597      - All cal/exf related options are currently set in
1598        single header file. Should remain so until we
1599        agree on a consistent new policy.
1600    o Removed all CPP options for cal package.
1601      cal has no more CPP options.
1602    o modified STOREs in GAD_ADVECTION
1603    o corrected key comp. for passkey
1604    
1605    checkpoint52b_post
1606    o new version: "thsice" of thermodynamic sea-ice pkg:
1607     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1608     - modify fluxes but do not change theta directly;
1609     - light cleaning of bulk_force pkg (still needed with thsice).
1610     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1611       + output_thsice.txt to test thsice & bulk_force pkgs.
1612    o put back grid & coriolis monitor output.
1613    checkpoint52b_pre
1614    
1615    o call "do_the_model_io" at the beginning (=> dump initial state)
1616    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1617    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1618      (need info on NUMBER_OF_PTRACERS)
1619    o missing PTRACERS headers in some routines
1620    o default tamc.h in pkg/autodiff supposed to crash
1621      to ensure proper customization
1622    
1623    checkpoint52a_post
1624    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1625      - moved surfaceTendencyTice from pkg/seaice to main code
1626      - subroutine FREEZE_SURFACE now limits only surface temperature
1627        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1628        => new output.txt for global_ocean.cs32x15 & global_with_exf
1629      - keep the old version of FREEZE for backward compatibility;
1630        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1631      - corresponding modifs for TAF directives
1632    o added surface flux output variables to TIMEAVE_STATVARS
1633    o time-averaged output for pkg/ptracers
1634    o fix problem with ECCO-related divided adjoint
1635      snapshot file was missing some ad-variables,
1636      but no warning issued by TAF
1637    
1638    checkpoint52a_pre
1639    o some bug fixes for #undef REAL4_IS_SLOW
1640    
1641    checkpoint52 = ecco_c52_e35
1642    o after testing adjoints of checkpoint51u_post
1643    
1644    checkpoint51u_post
1645    o this is the post-merge tag of the ecco-branch
1646      (needs another clean checkout and re-testing)
1647    o various natl_box_adjoint configs and results
1648      but no input fields
1649    o obcs adjoint not yet merged!
1650    o adding ECCO global 1x1 and 2x2 degree configs
1651    o updated/extended some store directives for seaice
1652    o pkg/ecco now containes ecco-specific part of cost function
1653    o top level routines the_main_loop, forward_step
1654      supersede those in model/src/
1655      previous input data.cost now in data.ecco
1656      (new namelist ecco_cost_nml)
1657    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1658    
1659    checkpoint51t_post
1660    o this is the pre-merge tag of the ecco-branch
1661    
1662    checkpoint51s_post
1663    o cleanup: removed various obsolete #define-s
1664    o pkg/grdchk
1665      - renamed 'ph-grd 3' to 'grad-res'
1666      - merged from ecco-branch
1667        (remaining bug fixes for obcs gradient checks)
1668      - additional high-precision output for testreport
1669        (grep for 'precision_grdchk_result')
1670    
1671    checkpoint51r_post
1672    o cleaned up or removed CPP_OPTIONS.h files
1673    o updated results for some of the tests to reflect the new
1674      optfiles (-ieee: -O0 instead of -O3)
1675    
1676    checkpoint51q_post
1677    o cd_code:
1678      - moved cd_scheme.F -> cd_code_scheme.F
1679      - separate read_checkpoint from cd_code_ini_vars.F
1680      - separated cd_code part from write_checkpoint
1681      - updated AD_SOURCE, generated .flow
1682      - added CD_CODE_VARS.h to the_main_loop
1683      - Moving cd_code specific store dir.s to pkg/cd_code
1684    o ctrl package totally restructured
1685      - pack/unpack now optional and decoupled from
1686        xx_/adxx_ I/O
1687      - ctrl_pack/unpack cleaned
1688        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1689      - confined inclusion of AD_CONFIG.h to where necessary.
1690    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1691    
1692    checkpoint51p_post
1693  o create initial cd_code package  o create initial cd_code package
1694      - WARNING: the initialization of fields within packages
1695        is broken because INI_FIELDS (where READ_CHECKPOINT is
1696        called) is called *before* PACKAGES_INIT_VARIABLES.
1697        This seems to be backwards since
1698        1) its important to initially zero the entire field including
1699           the "halo" region
1700        2) zeroing needs to be done *before* reading pickup info
1701           and the pickup call might or might not happen in any
1702           particular run
1703      - this needs an overhaul for R2
1704  o cleanup verification/*/code/GMREDI_OPTIONS.h  o cleanup verification/*/code/GMREDI_OPTIONS.h
1705  o cleanup testreport  o cleanup testreport
1706    

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