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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.714 by jmc, Mon Aug 14 01:11:08 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint58n_post
8    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
9       local variable (not in common block).
10    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
11      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
12      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
13        to work with SingleCpuIO.
14    o add "_d 0" to real constant of pkg/cfc subroutines ;
15       update exp. cfc_exemple & tutorial_cfc_offline output files.
16    o multi-threading and IO:
17      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
18        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
19      - barrier before and after reading.
20      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
21      - avoid using MDS_WRITELOCAL for LAND pkg output.
22      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
23        common-block variables ; Allows multi-threading with master-thread IO.
24    o change default MAX_NO_THREADS from 32 to 4 ;
25      and stop cleanly when MAX_NO_THREADS is too small.
26    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
27    
28    checkpoint58m_post
29    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
30       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
31    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
32       keep global_ocean.90x40x15 (for AD testing) with former secondary test
33       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
34    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
35        add MITgcm_tutorials (= code + all the tutorials)
36    o ecco, option to compute cost for total ssh (mean+anom)
37    o consistent with addition of ptracer and ssh in pkg/profiles
38    o profiles: adding ptracer and ssh
39    o testreport: change multi-test output-file name
40      (from output.txt.{name} to output.{name}.txt)
41    o profiles: now ok for mutli-tiles case
42    o seaice: add 4 parameters for different advection schemes for area,
43      (effective) seaice thickness, enthalphy, and snow height. Their default
44      is the standard parameter SEAICEadvScheme
45    o calc_gw:
46     - add cosFacU in zonal viscous flux (harmonic.visc.).
47     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
48       of tutorial_plume_on_slope.
49    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
50    o calc_gw: true flux-form, account for horizontal grid spacing.
51      update rotating_tank results, but not plume_on_slope (affected at
52      truncation level, 11 digits).
53    
54    checkpoint58l_post
55    o calc_gw:
56     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
57     - remove side-drag for now (need to fix it); update plume_on_slope results.
58     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
59    o commit code to make SST/SSS weights spatially variable
60      (based on either variable in-situ or variable initial T/S weights)
61    o pkg/ecco:
62      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
63        now based on horizontally varying weights wthetaLev, wsaltLev
64      * cost_averagesflags now returns year indices in addition to day, month
65      * sflux balance is performed on annual basis
66        (sflxumm, sfluxmm2, bal_sfluxmm)
67      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
68        including separate counting and multipliers
69    o pkg/rbcs
70      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
71    
72    checkpoint58k_post
73    o testreport:
74     - always build in dir. "build" (if not there, mkdir build instead of building
75       & running in input)
76     - run in dir run (if it exists), in build otherwise.
77     - call prepare_run (if input/prepare_run exists)
78     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
79    o pkg/exf modifications to interpolation and rotation routines for more
80       reasonable treatment of North Pole singularity: for tracers North Pole
81       value is set to northernmost zonal-mean value, for zonal velocity it is
82       set to zero, and for meridional velocity it is set to northernmost value.
83    o pkg/exf/exf_check_range.F
84     - add tile index to diagnostics and move stop statement to the very
85       end of the routine.
86    o pkg/diagnostics: (diagnostics_main_init.F)
87      define title of isomorphic variables according to the current config.
88    o pkg/thsice with pkg/seaice dynamics:
89    - fix domain of computation (interior only, required for exf) and do exchanges
90    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
91    o towards a standard way of dealing with multi-threading in MONITOR
92      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
93    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
94       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
95    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
96    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
97    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
98       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
99    o tracer advection:
100     - clean-up and simplify calc_common_factors.F
101     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
102       advection subroutine (but still not used within DST advection S/R)
103    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
104    
105    checkpoint58j_post
106    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
107      from file (collects calls previously in FORWARD_STEP)
108    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
109    o adjoint store dir. adjusted accordingly
110    o genmake2
111      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
112    
113    checkpoint58i_post
114    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
115      on wind stress (SEAICEstressFactor defaults to 1.)
116    o Total number of Timers is finite (<=40): comment out 2 non-essential one
117      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
118    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
119      on CS-grid: no longer loosing mass.
120    o exf & curvilinear-grid: no longer modify longitude xC & xG.
121    o pkg/ggl90: fix sloppy output and fix a bug
122    o pkg/seaice: added SEAICEuseEVPpickup parameter
123      - Set to false in order to start EVP solver with
124        non-EVP pickup files when using SEAICEuseEVP
125      - fix sign error in diffusion in seaice_calc_rhs
126    
127    checkpoint58h_post
128    * Modifications for bottom topography control
129      o replace hFacC by _hFacC at various places
130      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
131      o add non-self-adjoint cg2d_nsa
132      o update autodiff support routines
133      o re-initialise hfac after ctrl_depth_ini
134      o works for 5x5 box, doesnt work for global_ocean.90x40x15
135    * Adding verification for 5x5 box (4-layer) bottom topography control
136    
137    checkpoint58g_post
138    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
139       used for mean seasonal cycle, mean diurnal cycle); add an example
140       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
141    o pkg/ggl90:
142      - add parameter (minimum surface kinetic energy)
143      - fix bug (avoiding division by zero)
144    o couple pkg/thsice to pkg/seaice:
145      - modify advection in seaice to accomodate new scalar fields to be advected
146      - only muliDimAdection scheme work with seaice/thsice
147      - mapping of thsice-variables to seaice-variables, back and forth
148      - does not break the verification experiments, but does not give the
149        desired results either
150    o pkg/seaice
151      - make (default) second order advection a bit less confusing?
152    
153    checkpoint58f_post
154    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
155      to pkg/seaice):
156      - new routines thsice_map_exf and thsice_get_exf provide the interface
157      - add an additional formal parameter to thsice_solve4temp
158    o pkg/exf:
159      - add new fields wspeed, snowprecip (to be able to couple to thsice)
160      - correct Stefan-Boltzmann constant
161      - new parameter for longwave surface emittance
162      - separate some stuff from exf_bulkformulae into new routines  
163        exf_radiation, exf_wind
164      - add new parameters and constants: longwave emissivity for ocean, ice
165        and snow, evaporation parameters over ice
166      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
167        either wind from stress or stress from wind
168    o pkg/thSIce:
169    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
170    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
171       and THSICE_CALC_THICKN
172    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
173    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
174      to make debugging easier.
175    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
176    o pkg/bulk_force:
177      - clean-up comments and parameters ;
178      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
179    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
180      generate new output for test-experiment: aim.5l_cs.thSI
181    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
182      testreport accordingly
183    
184    checkpoint58e_post
185    o SEAICE_CGRID adjoint done
186    o R_STAR adjoint implemented.
187      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
188      * need to sort out init. of h0facc, etc.
189    o Make pkg/profile fully independent of ecco,cost, etc. stuff
190      to be able to use it in pure forward.
191    
192    checkpoint58d_post
193    o upgrade simple test-experiment to tutorial example:
194     step.1: duplicate the experiment and (step.2) will remove the old copy.
195      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
196      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
197      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
198      tutorial_global_oce_biogeo    <- copy of dic_example
199      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
200      tutorial_plume_on_slope       <- copy of plume_on_slope
201      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
202      tutorial_global_oce_optim     <- empty for now (David ?)
203      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
204     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
205    o correct a sign problem in cost_scat.F
206    o obcs and ptracers: fix boundary conditions for advections schemes
207      with larger stencil
208    o thsice adjoint: start
209    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
210      completeness
211    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
212      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
213    o ptracers adjoint:
214      * avoid extensive recomputatations
215      * fix missing re-init. of gptr (missed by TAF)
216    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
217      me to turn off the excessive output to STDOUT that this package produces
218    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
219      and add those terms in Vector-Invariant formulation.
220    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
221      if the control period (xx_hfluxperiod etc) is 0
222    o in profiles pkg, clean routines and fix details
223    o in ecco pkg, reading ssh data:
224      fix problem in case the model does not start at iter0=0
225    o fix mnc-pickup/restart for ptracers
226    o new package prifiles:
227      code to compute profile-based cost by Gael Forget
228      (modifs in ecco, ctrl, autodiff)
229    o Benign bug fix in initialization (spotted by M. Mazloff) of
230      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
231    
232    checkpoint58c_post
233    o adjoint: finish NLFS adjoint and provide reference output in
234      verification/global_ocean.90x40x15/results_ad_nlfs
235    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
236      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
237      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
238      with SEAICE_CGRID defined.
239    o move calendarDumps from "data" to "data.cal" and clean-up the code
240      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
241    o add useEXF & useCAL flags (for now, set in hard-coded way)
242    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
243      (were missing in NH mode, and wrong in quasihydrostatic mode).
244      waiting for Chris updated version of calc_gw to add those CALLs.
245    o fix bug in quasihydrostatic S/R ;
246      add a test for this option: global_ocean.90x40x15.qshyd
247    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
248      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
249    o add on/off flag useOffLine for package OFFLINE
250    o seaice:
251      - modify advection so that it works also on the C-grid
252      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
253        problem in multi-tile runs with C-grid
254      - add flags for clipping ice velocities and/or masking solver forcing
255      - fix drag (ocean on ice) formulation and a bug that caused noise in the
256        C-grid solver
257      - added a few comments to seaice_diffusion.F
258      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
259        are now exclusive)
260      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
261        required re-ordering the code a little:
262       + make DAIRN global variable (defined in SEAICE)
263       + move computation of the viscosities eta and zeta into a new separate
264         routine (because I need to recompute them in seaice_ocean_stress.F)
265    
266    checkpoint58b_post
267    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
268      update output.txt of exp. aim.5l_cs.thSI
269    o various mnc cleanups and improvements:
270      + shrink lookup tables by factor of ~4
271      + better error reporting when running out of lookup space
272      + able to handle longer path/file names (up to 500 chars)
273    o adjoint:
274      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
275      - TBD: "hidden" mom_vecinv recomp. in dynamics
276    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
277     (allow to differentiate between forcing components using new integer flags:
278      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
279     and add new flag to put Dissipation tendency out of Adams-Bashforth.
280    o ecco
281      - enable trend removal from SSH anomaly obs.
282    o adjoint
283      - a fix for PmEpR when #undef EXACT_CONSERV
284      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
285      - try to fix "hidden" recomp. in forward_step for NLFS
286        (NLFS seems broken sometimes after I checked it in)
287    o seaice:
288     - add c-grid version of the dynamic solver:
289       + three new routines that are the c-grid substitute lsr, dynsolver
290         and ostres
291       + put a few fields that were local to dynsolver into global common
292         blocks, so that I can move the computation of stresses etc into
293         seaice_lsr (saves coding but may break the adjoint).
294     - replace more hardwired parameters by runtime parameters
295     - add ice masks that mask the rhs of the implicit solvers where there
296       is no ice (commented out in seaice_dynsolver, because i am not sure
297       if this works properly), eventually this should replace the clipping
298       of ice velocities in seaice_dynsolver to +/-40cm/s.
299    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
300      include it only where its needed
301    o move balancing of fluxes before the call of external_forcing_surf
302    o seaice:
303      - correct units of turning angles (now they are really in degrees)
304      - move computation of GWATX/Y out of main routine into dynsolver
305      - initialize GWATX/Y in seaice_init
306    o Apply mask on Fresh-Water flux (needed for SSH forcing).
307      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
308    o seaice: add runtime flags for turning angles (default to zero)
309    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
310      and trend from exf forcing and ctrl control adjustments
311    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
312      (since checkpoint57x_post)
313    o change the default rotation period to 86164.s = the Earth rotation
314    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
315      and based on a reference stratification. Tested within hs94.cs-32x32x5.
316    o seaice advection: add code for choosing between the default (2nd order
317      central differences) and multiDim advection schemes provided by
318      pkg/generic_advdiff
319    o seaice:
320      - removed all references to SEAICE_GRID.h fields from
321        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
322        (cubed-sphere configuration will change a little)
323      - grid computations in seaice_init are obsolete now.
324      - cleaned up code a little so that is easier to read (hopefully).
325      - added new (better?) discretizations of default advection and diffusion
326        (turn on with SEAICEuseFluxForm)
327      - replace 1 in 3d global fields by kSurface in growth.F
328      
329    checkpoint58a_post
330    o seaice:
331      - bug fix in advect.F
332    o shelfice:
333      - separate shelfice load anomaly from pload (breaks with time
334        dependent forcing), => introduce constant field shelficeLoadAnomaly.
335        Its default is 0., but it may be computed more cleverly from (unknown)
336        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
337        done offline. A good approximation of the pressure load anomaly is
338        necessary to avoid large initial adjustment processes underneath
339        deep-reaching shelfice.
340      - small fix in ISOMIP shelfice_thermodynamics
341      - add more sophisticated thermodynamics of Hellmer (1989), this is
342        now the default
343      - give a few constants more intuitive names
344    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
345      if bulk formulae are used in long integration (especially EmPmR). Turn
346      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
347      if balancePrintMean, the imbalance that is substracted is printed to
348      STDOUT.
349    o fix bug (typo) in obcs_apply_eta.F
350    o add a new package shelfice which enables us to model the circulation
351      underneath shelf-ice with draughts of hundreds of meters.
352     - works
353     - to do: + include improved thermodynamics
354              + check whether kSurfC (from model/inc/SURFACE.h) can be used
355                instead of new field kTopC
356              + can we use topoFile, Ro_surf and existing code in ini_depth.F
357                instead of new field R_shelfIce and new code in ini_depth.F
358                and ini_mask_etc.F?
359              + adjust vertical mixing schemes?
360    o seaice pkg:
361     - add a cpp-flag to include a simple formula for a salinity dependent
362       freezing point of sea water at the surface
363     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
364       meridional stresses are now different (and hopefully correct)
365    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
366       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
367       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
368    o pkg/diagnostics: add options and parameters for regional-statistics
369       diagnostics ; define regions by reading a region-mask from a file
370       (might add other options later)
371    o pkg/bulk_force:
372     - add option and parameters to use AIM surface-flux formulae.
373     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
374       others forcing fields (defined in PARM05, parameter file "data") are loaded
375       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
376     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
377     - use the right EXCH call for uwind,vwind (to work on CS-grid).
378     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
379       and parameters (note: calcWindStress replaces .NOT.readwindstress).
380     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
381    
382    checkpoint58
383    o add "--embed-source" option to genmake2 which, when the supporting
384      tools can be compiled (as determined by genmake2) will turn on the
385      embed_files package which then embeds the entire MITgcm source code
386      (*.[fFhc] + Makefile) used for the build within the executable
387      - requested by CNH but off by default
388      - adds a paltry <9MB to the mitgcmuv executable in most cases
389      - only writes the output when useEMBEDSRC in eedata is true
390    o clean up 3-dim. relaxation codes:
391      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
392      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
393      * Thanks to Tom Haine for testing!
394    
395    checkpoint57z_post
396    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
397      affects output (@ truncation level) of exp. plume_on_slope ; updated.
398    o fix the pickup behavior for obcs in combination with ptracers
399    o fix a bug in ptracers_external_fields_load
400    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
401      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
402    o transfered surface NH pressure to eta field (if exactConserv).
403    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
404         and update lab_sea output.txt file.
405    o completing 3-dim. relaxation code: additional term
406         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
407      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
408      * At compile time, in "EXF_OPTIONS.h" set
409          #define  ALLOW_CLIMTEMP_RELAXATION
410          #define  ALLOW_CLIMSALT_RELAXATION
411      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
412          tauThetaClimRelax3Dim = 15552000.0,
413          tauSaltClimRelax3Dim  = 15552000.0,
414      * 3 cases:
415          1) Use a constant-in-time 3-dim. field
416          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
417          3) Real-time relax. to time-evolving prescribed field
418    o Adding Laplacian-type smoothness constraint on
419      initial and boundary (forcing) controls (ic, bc)
420      * enable at compile-time via
421        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
422      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
423      * Absolute scale somewhat unclear so far
424      * no area weighting was included since no other cost term does so far
425    
426    checkpoint57y_post
427    First step for a NLFS adjoint
428    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
429    o new init. routines for calc_r_star, calc_surf_dr
430    o still need to deal with ini_masks_etc
431    o testreport seemed happy
432    checkpoint57y_pre
433    
434    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
435    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
436    o add new offset feature to offline pkg (plus minor cleanup)
437    o cfc fixes for final year of integration
438    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
439      be in GCHEM_OPTIONS).
440    
441    checkpoint57x_post
442    o fix testreport Pb in multiple test experiment.
443    o cleanup our namelist syntax in verification:
444      - make it more F95 standards compliant (some work still needed)
445      - allows the vast majority of our tests to work with gfortran
446    o Non-Hydrostatic:
447     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
448     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
449    o Allow to apply AB on T,S rather than on AB(gT,gS):
450     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
451     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
452       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
453     - need a "clever" read_pickup to restart from the other AB formulation
454    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
455    o remove some unused variables (reduces number of compiler warnings)
456    o adjoint
457      * Disable useVariableViscosity for adjoint for time being
458        (there are a number of extensive recomputations)
459      * Initialize certain variables needed for adjoint
460    
461    checkpoint57w_post
462    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
463                 fix the singleCpuIO RS version of MDSWRITEFIELD
464       and add a WARNING if using globalFiles=T with multi-processors.
465    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
466      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
467    o tracer advection scheme:
468      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
469       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
470       was not very convenient).
471      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
472       (further tests needed for the implicit DST & Flux-Limiter schemes).
473    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
474      and sRef for convenience, handy, when you want to initialize
475      ptracers in a large domain with a constant non-zero value. Also,
476      untangle ptracers_init.F a little.
477    
478    checkpoint57v_post
479    o change dome exp. to use variable viscosity in side-drag terms.
480    o remove all the files from the cfc_offline test since they are now
481      incorporated into tutorial_cfc_offline which has been producing
482      identical results for a few days of testing
483    o add new parameter: sideDragFactor to enable half-slip-side BC
484      and change side-drag S/R to use viscosity from mom_calc_visc
485      (can switch back by setting sideDragFactor=0.); affects results at
486      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
487       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
488    o vorticity & strain are now computed without masking, to account for
489      no-slip-side BC in variable viscosity calculation ; mask is applied
490      anyway later on, before computing advection/coriolis terms.
491    o modify exp4 to test new obcs support for reading from external files
492      and for passive tracers
493    o fix behavior of ptracers_monitor when monitor output is written to a
494      netcdf-file; still not independent of monitor.F (writes in the same
495      file).
496    o change default value of tRef (put a uniform, meaningful value for ocean
497      & atmos) and initialize sRef (was missing, as Martin mentioned).
498    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
499      to be proportional to enstrophy dissipation length.  Thus,
500       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
501      This is now consistent with Smagorinsky and with the manual.
502    
503    checkpoint57u_post
504    o OBCS and PTRACERS: add open boundary support for passive tracers
505      - either use homogenous (pseudo) v.Neumann conditions or prescribe
506        OB-values from file; this is not different from the way theta and salinity
507        are treated
508      - however, Orlanski-radiation conditions are not supported, and the model
509        will stop if you use pTracers and Orlanski at the same time.
510      - beefed up the rountine obcs_external_fields_load: now only those open
511        boundary values are overwritten with values from files for which there
512        are really files, otherwise the OB-fields remain untouched. This makes
513        it possible to use different OBs at different ends of the domain (as
514        with EXF)
515    o reduce number of exch calls in shap_filt (s2).
516    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
517      truncation level) 4/5 MLAdjust test results (11&12 digits match).
518    
519    checkpoint57t_post
520    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
521    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
522      same truncation, independent of the face number: affects affects several
523      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
524    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
525      note that biharmonic viscosity + no-slip was not tested in any experiment.
526    o fix bug in non-linear free-surf side-drag ; generate new output for
527      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
528    o make mnc honor the writeBinaryPrec flag for most kinds of output
529    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
530    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
531      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
532    o add brackets in multi-terms sum to get same truncation, independent of
533      the face number (manage to get exactly same value of gU,gV at the cs-edge)
534      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
535    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
536      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
537      a maximum grid-scale Reynolds number.  Also, changes all length calculations
538      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
539      Suggested values of viscosity parameters found in mom_calc_visc.
540      Many new viscosity diagnostics available.
541    
542    checkpoint57s_post
543    o Add clearing-house for viscosity calculations, mom_calc_visc and
544      correct numerous bugs in LeithD and Smagorinsky discretizations.  
545      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
546      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
547      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
548      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
549      The Strain-Tension form is now called with useStrainTensonVisc=.true.
550      ViscAhStrain and viscAhTension are now retired.
551    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
552    o In response to JMC's bug report, genmake2 now ignores any soft-links
553      that it finds in the *current* directory when searching for files.
554      Soft-links found in any other source directories will still work as
555      they did before.
556    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
557      a C routine to unlimit the stack size
558    o mnc-ify pkg/aim snapshot vars
559    o mnc-ify pkg/land as requested by Daniel
560    o various changes to mnc including:
561      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
562      - output can now be grouped so that all files within a group
563          change the ITER portion of their names in lock-step together
564      - can now read ("global") PER-FACE (in addition to PER-TILE) files
565          and works with both EXCH1 and EXCH2 (but needs more testing)
566      - writing works for all verification test cases w/ g77 on Linux
567    
568    checkpoint57r_post
569    o make MNC variable initialization happen earlier
570    o add diagnostics for (almost) each term of the momentum Eq.
571    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
572    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
573    o remove MINIMAL_TAVE_OUTPUT option ;
574      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
575    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
576      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
577    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
578    o add time-dependent SST, SSS control
579    o cost terms in ecco/ modularized (new cost_generic.F)
580    o cost_averages routines are modularized (new cost_averagesgeneric.F)
581    o new infrastructure for seaice model vs. obs misfits in seaice/
582      * driver from the_main_loop.F is seaice_cost_driver.F
583      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
584      * gradient check in Exp. 6a of natl_box_adjoint/
585    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
586      (see README file)
587    
588    checkpoint57q_post
589    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
590    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
591      - bug was reported by Jean-Michel and Ian Fenty
592    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
593      update exp. cpl_aim+ocn output.
594    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
595      Needed for high-res. runs with large global files
596      to be able to limit tapelev size
597    o Changed some tests for adjoint:
598      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
599      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
600      * global_ocean.90x40x15/ back to default 3-level checkpointing
601    o Modifications to enable scripted COMMON to MODULE conversion
602      * verification/OpenAD/code/ has necessary scripts and description;
603      * converts, compiles and runs successfully;
604    
605    checkpoint57p_post
606    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
607    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
608      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
609    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
610    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
611      (was already the case for dissipation with mom_vecinv,
612       and also the case for grad.PhiHyd when staggered-timeStep)
613      This will allow to put dissipation out-off the AB time-stepping.
614     Unfortunately, affects truncation error. Update output of exp. that "fails"
615      (cg2d matching number) and leave the others for later: front_relax(10),
616      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
617      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
618    
619    checkpoint57o_post
620    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
621      (2) its ready to be documented during the 20050801 DocFest
622    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
623      for ideal_2D_oce and lab_sea on linux_ia32_g77
624    o set to #undef CTRL_SET_OLD_MAXCVARS_30
625      in global1x1_tot/code_seaice_adj to access indices 32, 33
626      (worth another tag)
627    
628    checkpoint57n_post
629    o adding precip control xx_precip 32
630    o adding swflux control xx_swflux 33
631    o Replacing 10 forcing penalty cost routines by 1 generic.
632    o Implementing partitioning in time-mean and variable adjustment
633      for atmos. state.
634    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
635    o in natl_box_adjoint:
636      * updated exp 1 to 10
637        (but does not have time-mean vs. variable split results yet)
638    o updated global1x1/*_seaice_adj/
639      to incorporate latest changes
640    o enable useSingleCpuIO for mdsio vector routines
641      (applies in particular to tapelev I/O)
642    o removed inefficient K-loop in all active_file*control*.F
643    
644    checkpoint57m_post
645    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
646      and advect_cs (use EXCH-2 and standard cs-32 grid files).
647    o pkg/exch2: filling of face-corner halo regions is optional
648      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
649    
650    checkpoint57l_post
651     tag before updating tutorials (pre-release-2)
652    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
653       for output and interpolation of input fields onto model grid)
654    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
655       Affects results of exp. rotating_tank ; update output.txt.
656    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
657          and taking the square quantity and/or using a fraction-weight field.
658    o fix aim_diagnostics_init.F mate numbers.
659    o add mnc output capability to diagnostics/diagstat and update
660      our cvsignore files for the ACSII output generated
661    
662    checkpoint57k_post
663    o lab_sea now uses diagnostics package and provides a suite of
664      new EXF diagnostics output.
665    
666    checkpoint57j_post
667    o exf
668      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
669        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
670        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
671      * extended diagnostics output
672        - now includes all EXF variables
673        - hs, hl moved to common block
674        - separate S/R for diagnostics, called after ctrl vector is added
675        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
676        - EXFqnet contains true Qnet (i.e. includes qsw)
677      * updated verif. lab_sea, global_with_exf
678      * Rearranging hflux (exf_mapfields -> exf_getforcing)
679        to ensure that diagnostics sees a true EXFqnet
680    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
681    o diagnostics pkg: change pointers so that 1 diagnostic can be used
682      several times with different frequencies.
683    o mnc-ify the thsice package as requested by Daniel Enderton
684      - the monitor--MNC output needs work
685      - many attributes need to be added (most are currently blank)
686    o mnc-ify theaim_v23 package as requested by Daniel Enderton
687      - many attributes need to be added (most are currently blank)
688    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
689    o add Sadourny like discretization to the 4th.O vorticity advection scheme
690    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
691      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
692         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
693    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
694     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
695    
696    checkpoint57i_post
697    o Diagnostics package was changed: diagnostic allocation is now deactivated
698      by setting an empty file name in the namelist (used to be by setting 0 frequency)
699    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
700      add 1rst Order upwind vertical Shear.
701    o add a quick fix for A/B checkpointing in OFFLINE mode
702    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
703      end-run around the C/Fortran linking horror in eesup/src/timers.F
704    o added pkg/runclock: allows user to terminate run based on wall clock
705    o added non-hydrostatic scaling parameter: nh_am2
706    o pkg/my82: futile attempt to make results compiler-independent by adding
707      some "_d 0", etc. no effect.
708    o for mnc output, fill the 'T' coordinate var with myTime and create a
709      separate 'iter' variable for iteration count
710    o pkg/diagnostics:
711      add new capability: output of Global/Regional & per-level statistics ;
712      tested against monitor output (including land & thSIce) on various exp.
713    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
714    
715    checkpoint57h_done
716      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
717      data.diagnostics, data.gchem, data.ptracers) is done.
718    
719    o pkg/diagnostics: prepare for Global/Regional statistics.
720      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
721    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
722      and rename it: DIFFERENT_MULTIPLE
723    
724    checkpoint57h_post
725    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
726    o pkg/diagnostics: change output frequency, now in seconds (instead
727      of Nb of iterations). This requires to change data.diagnostics.
728    checkpoint57h_pre
729    
730    o in mnc, let the user create the output dir if both mnc_outdir_date
731      and mnc_outdir_num are false
732    o add fflags() to pkg/diagnostics which allows one to specify, on a
733      per-file basis, the file precision [default behavior is unchanged]
734    o added diagnostics to pkg/kpp, including computation of mixed layer
735      depth based on a temperature/density criterion
736    o updated verification/natl_box to test the new pkg/kpp diagnostics
737    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
738    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
739    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
740      not mnc -- this mistake was found by JMC and is now corrected
741    
742    checkpoint57g_post
743    o add Adams-Bashforth 3rd Order time stepping:
744      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
745      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
746    checkpoint57g_pre
747    
748    o make lambda[Theta,Salt]ClimRelax spatially varying
749      (default remains spatially uniform constant based on tau)
750    o added new control variables
751      * init. uVel, vVel, etanN
752      * lambda[Theta,Salt]ClimRelax
753    o separate masks used for ctrl_pack/unpack 'from write_grid' output
754      (suggested by G. Forget)
755    
756    checkpoint57f_post
757    o add parameter "baseTime" = model base time = time at iteration zero
758      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
759      account for baseTime shift
760    o move Coriolis arrays from PARAMS.h to GRID.h
761    checkpoint57f_pre
762    
763    o mnc-ifying the seaice package
764    o introduced an alternative length scale calculation for use in the limiting
765      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
766    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
767    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
768      as well as grad(vort3).  Made it compatible with both approximate form
769      for the cubed sphere and full form of these gradients.  Added flag
770      useFullLeith to select between approximate and full form.  
771    o add "d0" in getcon.F to reduce differences between compilers/platforms
772      update output.txt of exp. fizhi-gridalt-hs
773    o change port_rand funtion to allow to set the seed.
774    o fix obscure MNC bug involving conversion between reals and integers
775      - it caused no problems with certain (eg. gcc, ifc) compilers but the
776        new version is now more standards-compliant
777    o adjoint-related modifications
778      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
779      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
780      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
781    
782    checkpoint57e_post
783    o Adding eddy stress controls a la Ferreira et al.
784    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
785    
786    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
787      update output.txt of exp. fizhi-gridalt-hs
788    o add more "Z" dimensions and associated coordinate vars to MNC
789    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
790    o parameter calendarDumps: when set, approximate months (30-31 days) and years
791      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
792      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
793      months and years.  Requires pkg/cal.
794    o diagnostics: add pickup functionality
795      - off by default for backwards compatibility
796      - current version only uses MDSIO -- MNC will be added
797    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
798    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
799    
800    checkpoint57d_post
801    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
802    o modify verification/ideal_2D_oce so that it tests the creation of mnc
803      output from the diagnostics package
804    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
805    o make genmake2 more portable by using ".$FS" instead of ".f" for more
806      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
807    o add coordinate variables to the MNC output from the diagnostics package
808    o change MNC-flags default value: true when useMNC=TRUE
809    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
810      the ability (off by default) to read the grid information using MNC
811    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
812    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
813    o do snap-shot diagnostics at the middle of the time-interval (instead of
814      at the end).
815    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
816      new test for AIM with thSIce + slab-ocean
817    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
818    o move state variable diagnostics to the beginning of the time step ;
819      (note: still needs some work specially for snap-shot diagnostics)
820      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
821    
822    checkpoint57c_post
823    o Change testing option (-ieee) to get closer agreement between g77 & ifort
824    o generate new output.txt files on faulks with g77 & the new -ieee option
825    checkpoint57c_pre
826    
827    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
828      update output.txt of exp. global_ocean.90x40x15
829    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
830      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
831    o add saltFlux(+File) forcing capability with periodicExternalForcing
832    o allow to use pkg diagnostics for GM-Redi & ThSIce output
833    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
834    o improvements for the MNC output from DIAGNOSTICS:
835      - correct handling of the unlimitied dimension
836      - all dims now have associated coordinate variables
837      - variables located at U, V, and Corner ("Z") points are now written
838        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
839        *all* data points are output
840    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
841    o added pkg/seaice/seaice_monitor.F
842    o mdsio_readfield.F can now read files visible only to master MPI process.
843    o pkg/seaice: some test code for ice-modified ocean stress
844    o exf_getffields interpolation defaults to bilinear for all scalar forcing
845      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
846      spurious negative numbers for precipitation and humidity.  Will cause
847      some small numerical differences for integrations using pkg/exf/exf_interp.F.
848    o pkg/ctrl/
849      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
850        May be enabled via doPackDiag
851      *  introduce z-scaling of
852         + gradient (doZscalePack) and
853         + control (doZscaleUnpack)
854    o pkg/mdsio/
855      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
856      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
857    
858    checkpoint57b_post
859    o simplify options in diagnostics_fill arguments (remove weird combinations)
860    o fix MNC coordinate variables so that they now contain per-face index
861      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
862      general, EXCH2 grids are only aligned to a "local" coordinate system
863    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
864    o Implement instantaneous output within pkg diagnostics:
865      setting a negative frequency in data.diagnostics produces
866     "snap-shot" output (as opposed to time-average if freq > 0)
867    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
868      NOTE: change ptracer diagnostics name: use 2 characters to work with
869            more than 9 tracers. Add also diagnostics of advect & diffus flux.
870    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
871      becomes the coordinate variable for the 'T' dimension
872    o add CF-style coordinate variables to MNC
873      - just a first cut:  numbers are meaningless on the cubesphere and
874        missing along the T axis but otherwise it works!
875    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
876    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
877    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
878      this is based directly on what the model compute, so that the content of
879      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
880    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
881    o clean up build options files for SunOS, in particular
882      - remove -traditional from xmakedepend
883      - change -xarch=v9 to -xarch=native for f77
884      - restore use of make (not gmake)
885      - add CC=gcc if using g77
886    o changes per discussion of AM, JMC, & EH3 today:
887      - move redundant "grid" variables out of "state" -- in preparation of
888        creating proper CF-style coordinate variables and in recognition
889        that any/all grid variables can be easily copied (eg. w/NCO) from
890        the grid files into any of the other NetCDF files
891      - *always* output grid variables with MDSIO (this will eventually be
892        changed)
893      - output MNC grid file if useMNC is true
894    o every instance of _END_MASTER() has been found and replaced with
895      _END_MASTER( myThid ) in order to satisfy certain picky Sun
896      preprocessors
897    o re-arrange diagnostics pkg initialisation:
898     - allow each package to extend the available diagnostics list
899     - add some checking and fix small problems (multi-threaded, ...)
900     - new S/R diagnostics_fill (replace fill_diagnostics):
901       look through the short list of active diag. (instead of the long list)
902       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
903    
904    checkpoint57a_post
905    o this set of changes restores TAMC compatibility
906      tested for global_ocean.90x40x15 adjoint on trough
907      (what a pain)
908    
909    checkpoint57a_pre
910    o some modifs in tools/build_options for sunos
911    o call ctrl_pack for ctrl at end for optimcycle=0
912    
913    checkpoint57
914    o add horizontal bi-harmonic viscosity for vertical velocity
915      - new parameter viscA4W (defaults to viscA4)
916      - affects only non-hydrostatic code
917      - to be done: no-slip lateral boundary conditions
918    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
919    o implement Implicit Vertical advection for pTracers
920    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
921      (implemented also for implicit vertical diffusion & advection)
922    o OBCS: extend application of tracer open boundary conditions
923      to a strip beyond the boundary of width Olx/Oly
924    o add call monitor to TAF set of required calls (flow directives)
925      and include in natl_box_adjoint
926    o untangle a few ifdefs related to cost, ctrl, autodiff
927      untangel a few ALLOW_ECCO_OPTIMIZATION
928    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
929      (theta2, salt2 in ecco_cost_weights)
930    
931    checkpoint56c_post
932    o OBCS as control variables
933      - update ctrl_ad_diff.list, obcs_ad_diff.list
934      - remove balance of obcs controls from default
935      - fix index bug nobcs in ctrl_init
936      - fix dummy fields filen in ctrl_pack
937      - add dummy weights for obcs
938    o lsopt: comment out fort.94 output
939    o optim:
940      - remove unnecessary header files
941      - adjusted namelists
942      - add xerbla.F to Makefile
943    o exf:
944      - multiple modifications of exf_check_range
945      - unit change in exf_init_runoff from [m/year] to [m/s]
946    o mdsio:
947      - i/o-vector change debugLevel from debLevA to debLevB
948    
949    checkpoint56b_post
950    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
951      is called from DO_THE_MODEL_IO
952      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
953      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
954      - clean up PTRACERS_WRITE_TIMEAVE a little
955    o add another verification experiment that tests both the cfc-pkg and
956      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
957      reactive tendencies treated inline with regular timestepping
958    o testreport previously did a lousy job of comparing small numbers, so
959      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
960      implemented in the little c-progam tmp_cmpnum.c which is embedded in
961      testreport.
962    o ptracers_monitor: bug fix for MPI
963    
964    checkpoint56a_post
965    o GCHEM: finish reorganizating the package
966      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
967        (introduces another 3D-array for each passive tracer, but only if
968        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
969        gchemTendency is not needed because the timestep is done separately)
970      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
971      - GCHEM is now---more or less cleanly---separate from PTRACERS
972      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
973        so clear to me how that should be done in a general way.
974    o CFC: improve formatting of output in CFC_ATMOS
975    o PTRACERS:
976      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
977        that ALL experiments with ptracers enable can be checked. This makes
978        GCHEM_MONITOR obsolete.
979      - include a runtime parameter PTRACERS_monitorFreq that defaults to
980        monitorFreq
981      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
982    o add PTRACERS (PTR0[1-5]) to testreport output
983    o exf_check_range:
984      * default changed to .TRUE.
985      * will check values for niter0 if debLevA, every timestep if debLevB
986      * STOP in exf_check_range if 'out of range'
987      * range chosen generous to allow for potential extema
988      TBD: a version with stricter range
989           permitted range would be runtime parameters
990    o GMredi:
991      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
992      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
993      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
994    o GCHEM:
995      - move call to GCHEM_FORCING_SEP, so that it is now called before
996        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
997      - introduced a useGCHEM runtime flag and applied it everywhere.
998      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
999        this flag is now only visible within GCHEM-pkg routines.
1000      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1001        be replaced by a 3D array that is computed before thermodynamics; for
1002        this, the tracer ID iTracer had to be included into the parameter list
1003        of ptracers_forcing
1004      - set up forward_step to call gchem_forcing, that will replace
1005        gchem_forcing_int in ptracers_forcing
1006      - cleaning up
1007    o small cleaning of exch2: remove files that are also in eesupp/src
1008    
1009    checkpoint56
1010    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1011    o mnc: cleanup "full" files--fixes out-of-memory problem
1012    o ECCO-GODAE
1013      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1014      * fully merged and updated from SIO code
1015        windstress sign change affects
1016        - exf_inscal_[u/v]stress
1017        - sign of xx_tau[u/v] adjustments
1018        - signs in cost_scat
1019      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1020      * natl_box_adjoint updated and compressed
1021      * 2-level checkpoint switch added
1022        (tested in EXP. 1 of natl_box_adjoint)
1023      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1024    o SVD
1025      * first complete, non-hacked version for SVD calculations
1026      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1027        performed via direct access files admtlm_vector.it????
1028        (via ctrl_[un]pack)
1029      * optimcycle is used for ARPACK iteration counter
1030        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1031      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1032        and add linear transforms where necessary
1033      * controls are initial/final SST, SSS (can be extended; need to check
1034        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1035    o mdsio: filename info to both stderr, stdout
1036    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1037      from sign change
1038    
1039    checkpoint55j_post
1040    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1041      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1042    o add consistent build directories and .cvsignore files to verification
1043    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1044    o make all subroutines 30 or less characters in length for certain older
1045      compilers to work (a thorough search only turns up two routines in
1046      pkg/ptracers)
1047    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1048      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1049    
1050    checkpoint55i_post
1051    o change arrays for total vertical diffusivity (2.D if explicit,
1052      3.D if implicit) ; each ptracer uses its own background value.
1053    o added mnc/NetCDF output capability to ocn_compon_interf
1054      - added bits to verification/cpl_aim+ocn so that it can run on
1055        ITRDA and other clusters without the mpirun "-wd" option
1056    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1057      configuration
1058    o give MNC the ability to create additional files rather than
1059      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1060      - the default is just less than 2GB which is a practical limit
1061        on many systems
1062    o Compute the non-local term using either KPP vertical diffusivity (=default)
1063       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1064    
1065    checkpoint55h_post
1066    o add verification test "vermix"
1067    o remove all the *_ioinc flags and replace with the single global
1068      outputTypesInclusive flag
1069    o allow to set a vertical profile of vertical diffusivity for T & S
1070    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1071    o useMNC moved from data.mnc to data.pkg
1072    
1073    checkpoint55g_post
1074    o Renaming carbon AD experiments to comply with testreport conventions
1075    o Updating adjoint of Held-Suarez hs94.1x64x5
1076    o Fixing directives for non-ECCO forward_step, after ECCO directives
1077      have been fixed to avoid recomp. of do_oceanic_phys
1078      Works well for global_ocean.90x40x15,
1079      but recomp. issue remains for carbon
1080    o Updating adjoint output for natl_box_adjoint after
1081      pkg/ecco has been modified (see taga c55d_post)
1082    
1083    checkpoint55f_post
1084    o rename to timeave_init_fixed
1085    
1086    checkpoint55e_post
1087    o some delicate re-shuffle of store directives to avoid one
1088      extra call of do_oceanic_physics
1089      affects ecco_the_main_loop.F, do_oceanic_physics.F
1090      checkpoint_lev1_directives.h
1091    o NB: this may break global_ocean adjoint temporarily,
1092      but it is clear how to fix it. Will do later, need this now.
1093    
1094    checkpoint55d_post
1095    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1096    o ecco_cost_weights is modified to 1x1 runs
1097    o modifs to allow observations to be read in as
1098      single file or yearly files
1099    o enable to read exf forcing fields as either
1100      single file or yearly files (flag useExfYearlyFields)
1101    checkpoint55d_pre
1102    
1103    o switch between 2-level and 3-level checkpointing
1104    o add ability of MNC to write local and "partial" (eg. 2D slices where
1105      the full 3D field is never actually stored) arrays to NetCDF files
1106      with the correct (that is, the complete multi-dimensional) set of
1107      array indicies
1108      - used in mom_vecinv() to write the diagFreq output
1109      - tested (demonstrated) in verification/aim.5l_cs
1110    o further mnc-ification
1111      - add verification/lab_sea to the list with mnc setups
1112      - fix undefined mnc v-names in cd_code
1113      - add kpp to mnc output (both snapshot and timeave)
1114    o non-hydrostatic code
1115      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1116        in calc_gw.F
1117      - defaults to viscAh
1118      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1119        friction or Leith) in non-hydrostatic mode, as long as there is
1120        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1121    o pkg/cost
1122      extend simple cost functions to treat time mean quantities
1123      (T,U,V) via cost_accumulate_state from cost_tile
1124    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1125        be 2 times larger than the minimum size the advection scheme requires.
1126        now get a perfect conservation of salt in advect_cs test-exp (updated)
1127    o GGL90 (Gaspar's TKE mixed layer)
1128      - add horizontal diffusion of TKE, requires exchanges in
1129        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1130        default. In OPA there is no horizontal diffusion of TKE but the
1131        mixing coefficients are computed from a horizontal average of TKE of
1132        6 points or so. I think that diffusion has a little more physical
1133        justification.
1134      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1135        was in vain)
1136      - mask tke-variable in ggl90_init
1137    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1138    o fix biharmonic diffusion on CS-grid.
1139    o more obcs stuff
1140      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1141        for reading boundary values. This routine is called from
1142        obcs_prescribe_read
1143      - updated obcs_check
1144      - changed sponge layer relaxation parameter units for days to seconds
1145      - turned off sponge layer by default
1146      - changed argument list of OBCS_CALC to myTime+deltaTclock
1147      - fixed about 35 bugs in obcs_external_fields_load
1148    
1149    checkpoint55c_post
1150    o obcs stuff
1151      - new runtime flags useOBCSprescribe, useOBCSbalance
1152      - re-arranged obcs_calc
1153      - moved exf_getobcs to obcs_prescibe_read
1154        obcs_prescibe_read is called after ORLANSKI stuff
1155        and independent of it (executable can contain all).
1156      - updated obcs_check
1157      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1158        These may be necessary only if tangential velocities are
1159        prescribed at OB, not sure, needs testing.
1160    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1161      which simplifies the calls and passes the ifc check-bounds test
1162    
1163    checkpoint55b_post
1164    o add a 2D scalar, Z location, exchange_2 routine.
1165    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1166      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1167      affects advect_cs results (for the wrong reason): update output.txt
1168    o use a more standard discretization for biharmonic viscosity ;
1169     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1170      affects results of dome set-up: update output.txt
1171    o fix gad_advection.F (CubedSphere part), back to version 1.23
1172    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1173    
1174    checkpoint55a_post
1175    o merged code to
1176      * prescribe/read time-dependent open boundaries
1177        (works in conjunction with exf, cal)
1178      * sponge layer code for open boundaries
1179      * each boundary N/S/E/W now has its own CPP option
1180        (healthy for the adjoint)
1181    
1182    checkpoint55
1183    o up-to-date adjoint of previous breaks
1184      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1185      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1186      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1187      - carbon: * remove tr1-related adjoint verification
1188                * add ptracer as control variable
1189    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1190      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1191    
1192    checkpoint54f_post
1193    o in verification/carbin/ remove experiment related to
1194      ALLOW_PASSIVE_TRACER (array tr1 etc)
1195      code_ad/ input_ad/ results_ad
1196    
1197    o add two new packages
1198      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1199        + subject to optimization (memory)
1200      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1201        + subject to reordering (many GOTOs in the original code)
1202        + so far opps is called for every (i,j) point, and then operates in
1203          the vertical; one may want to reorder the scheme in order operate in
1204          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1205          fields)
1206    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1207      - all verification tests compile and run with linux_ia32_g77
1208      - defaults are compatible with current input files--nothing
1209        should change if you were not previously using MNC
1210      - MNC output has been added in numerous places (eg. timeave)
1211        but there are still a few writes not yet do-able with MNC
1212        (this is in progress)
1213      - flags now allow for either/or/both use of MDSIO and MNC and
1214        documentation will soon follow
1215      - numerous small formatting cleanups for ProTeX
1216    o add version info (via BUILD_INFO.h) to MNC and stdout
1217    
1218    checkpoint54e_post
1219    o add two new packages
1220      - pp81 (Packanowski and Philander, 1981), Richardson number and
1221        stratification dependent mixing
1222      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1223      - these scheme operate in a similar manner as KPP (without ghat, of
1224        course), however there is only one diffusivity that is used for both
1225        temperature and salinity (and passive tracers)ç
1226    o add offline package
1227    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1228      provided by Stephanie Dutkiewicz
1229    o genmake2: add ability to search for C compilers and cleanup test output
1230      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1231    
1232    checkpoint54d_post
1233    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1234    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1235      leading to additional shift by 5 days each year of integration
1236       (i.e. leading to considerable offset over the years)
1237    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1238    o start with no AB and no initial filtering (staggerTimeStep):
1239      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1240    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1241      (external loading & cpl import/export stay in forward_step.F)
1242    o update coupling interface to work with new staggerTimeStep
1243    o change MDSIO ptracers_pickup.
1244    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1245    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1246    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1247    
1248    checkpoint54c_post
1249    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1250      this affects (truncation error) output.txt of test-exp:
1251       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1252    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1253    o change Qnet to always be the net heat flux, (+upward).
1254      affects (truncation error) output of natl_box exp.: updated
1255    o define the max number of passive tracers in PTRACERS_SIZE.h
1256    o start to test mnc routinely in exp0
1257    o add sea-ice loading (sIceLoad) as a new forcing field.
1258    
1259    checkpoint54b_post
1260    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1261       impressive on Altix and Opteron systems)
1262    o diagnostics can now write NetCDF files through the mnc package
1263    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1264    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1265    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1266      affects (truncation error) output of lab_sea & natl_box exp.: updated
1267    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1268    
1269    checkpoint54a_post
1270    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1271    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1272    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1273    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1274      + internal_wave (shift in writing cg2d_ini_res)
1275    checkpoint54a_pre
1276    
1277    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1278      - modified verification/lab_sea and natl_box_adjoint accordingly
1279    
1280    checkpoint54
1281    checkpoint53g_post
1282    o prepare splitting of thermodynamics: store convect.counter in common block
1283    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1284      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1285    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1286    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1287    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1288    o restore adjointability
1289    
1290    checkpoint53f_post
1291    o modifications that affect AIM experiment results (update output.txt):
1292      - no advection of S at top interface Nr (pkg/generic_advdiff)
1293      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1294    o AIM pkg:
1295      - include stability function into surf.Flux derivative relative to Tsurf
1296      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1297    
1298    checkpoint53e_post
1299    o merged cylindrical coord configuration
1300    o added rotating_tank experiment
1301    checkpoint53e_pre
1302    
1303    checkpoint53d_post
1304    o faulks upgraded: re-generate output.txt that have changed:
1305       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1306    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1307    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1308    o added Sadourny discretization of Coriolis
1309      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1310      - re-enabled use of omega3 (useAbsVorticity)
1311    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1312      vector-invariant equations
1313      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1314    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1315      hopefully without new bugs
1316      - still to do: biharmonic friction for non-hydrostatic w
1317    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1318    o regenerated output for global_ocean_ebm (using -ieee)
1319    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1320      of mom_common/
1321      - simple re-arrangement of instructions within computing loop
1322    checkpoint53d_pre
1323    
1324    checkpoint53c_post
1325    o new version of coupler for AIM+thSIce and Ocean models
1326     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1327     - land: change Evaporation of snow
1328     - aim with thSIce: fix bug in snow-precip.
1329    o changes to calc_gw.F
1330     - bug fix for w^2 term near the bottom boundary
1331     - (hopefully) improve the lateral slip boundary condtions for use with
1332        partial/looped cells
1333      - because the bug fix changes two verification experiments anyway (exp5
1334        and plume on slope), change the lateral boundary condition from half slip
1335        to the value of no_slip_sides
1336    o ebm package wasnt quite up to the parallel task. Fixed that.
1337    o Adjoint of EBM package + verification
1338      * TLM OK
1339      * ADM not sufficient accuracy yet (needs further testing)
1340    
1341    checkpoint53b_post
1342    o Commiting new energy balance model to repository
1343      * package is pkg/ebm
1344      * verif. is verification/global_ocean_ebm
1345      * references are in ebm_driver.F
1346    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1347    C        Global thermohaline circulation. Part I:
1348    C        Sensitivity to atmospheric moisture transport.
1349    C        J. Climate 12(1), 71-82
1350    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1351    C        Global thermohaline circulation. Part II:
1352    C        Sensitivity with interactive transport.
1353    C        J. Climate 12(1), 83-91
1354    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1355    C        Destabilization of the thermohaline circulation
1356    C        by atmospheric eddy transports.
1357    C        J. Climate 7(12), 1870-1882
1358    o Will need long integration testing.
1359    checkpoint53b_pre
1360    
1361    o created pkg/mom_common in preparation for variable viscosity code
1362    o renamed and split ini_mnc_io
1363    o pkg/land: only liquid water can diffuse or run-off
1364    o AIM using land: soil wetness availability account for snow
1365    o added printMapIncludesZeros to EEPARMS namelist
1366    
1367    checkpoint53a_post
1368    o restore TAMC compatiility for exf_constants.h
1369      (no usage of _d in .h)
1370    o Additional storing in KPP in an attempt to fix
1371      TAMC problem with adjoint of KPP code.
1372      (no success...)
1373      Identical code works fine with TAF.
1374    o Fixed verification/natl_box_adjoint experiments.
1375      Initial conditions for Experiments 4 and 5 are now
1376      set to "SEAICE_initialHEFF=0", which is more reasonable,
1377      and hence gives results closer to that of Experiment 2.
1378      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1379    
1380    checkpoint53
1381    o stable checkpoint with up to date adjoint
1382      TLM tests only run for 1st grdchk at the moment. Its unclear if
1383      this is a code problem or a problem with resetting code for g_
1384      variables that is being autogenerated wrong.
1385      Otherwise:
1386       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1387       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1388         are both still in chaos following their security messes.
1389    
1390    checkpoint52n_post
1391    o various build (mostly genmake2) changes including:
1392      - ability to build/run more easily within Cygwin and MacOS X
1393      - more complicated Makefiles with a stronger dependence on Gnu Make
1394    o pkg/seaice modifications
1395      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1396        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1397        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1398      - changed proxy for geostrophic velocity and updated
1399        verification/lab_sea/results/* accordingly
1400      - removed ADI dynamic solver from pkg/seaice
1401      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1402        they caused a segmentation fault under certain circumstances
1403      - removed unused field WATR
1404    o bug fix in exf-package:
1405      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1406         now reflect that.
1407    o small fixes in the cal-package:
1408      - set reference date to first of January for the 'model'-calendar
1409      - failing of cal_CheckDate in cal_FullDate now actually results in a
1410        warning
1411    o small modifications in exf-package to increase flexibility:
1412      - change climtempfreeze from a constant to a runtime parameter that
1413        is specified in data.exf_clim (default = -1.9)
1414      - introduce runtime parameter windstressmax (default = 2.0) that is
1415        specified in data.exf
1416    o fix in pkg/thsice:
1417      - update Evap (Tsf changes) to be consistent with Latent heat flux
1418      - maintain snow precipitation unchanged (even if Tsf >=0).
1419     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1420    
1421    checkpoint52m_post
1422    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1423      this does not change any of the results, because myIter=0 in swfrac always
1424      lead to jwtype=2 (the default anyway), but the call makes little sense
1425      as a default
1426    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1427    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1428      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1429    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1430    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1431    o extending useSingleCpuIO option to work with new exch2 I/O format
1432      - old-style, missing-tile I/O is still accessible by defining CPP
1433        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1434    o monitor package can write to NetCDF files and/or STDOUT
1435    o fix re-definition bug in MNC_GRID_INIT_ALL()
1436    o doc/api_reference added
1437      - a framework for building an API Reference Manual using all
1438        the "protex" comments embedded in the code
1439      - see pkg/generic_advdiff, pkg/mnc for examples
1440    o MNC:
1441      - make myThid the last argument for all subroutines
1442      - new default for the grid files: NO halos
1443      - add useMNC and other run-time flags
1444      - separate per-file-group handling of the unlimited dimension
1445      - early initialization of MNC w/ flags read at the eeboot stage
1446        and lookup tables set in initialize_fixed
1447      - write all MNC output to a freshly-created directory
1448    o thermodynamics sea-ice (thsice) is now tested with testreport.
1449    o test exp. advect_cs: use the standard cs32 grid ; update output.
1450    o Added functionality to grdchk:
1451      pick global i,j,k position (or nearest wet) where to perform check.
1452    
1453    checkpoint52l_post
1454    o new land formulation:
1455      a) use ground enthalpy as prognostic variable to ensure exact
1456         energy conservation.
1457      b) account for water temperature and for latent heat of freezing
1458         in all processes (rain, run-off, ground storage)
1459      c) compute surface and ground temperature implicitly.
1460    o aim_v23 modification for new land model:
1461      a) Treat separately land / ocean / sea-ice surface fluxes
1462         to allow implicit computation of land & sea-ice surface temp.
1463      b) add snow precipitation.
1464    checkpoint52l_pre
1465    
1466    o fix problem (when 1 tile is empty) in min/max monitor.
1467    o fix bug in timeAve (u,vZetatave in common block)
1468    o no restoring terms under ice for pkg/seaice
1469    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1470    o bug fix for pkg/seaice pickups
1471    o change MNC call locations and add coordinate attributes
1472    o mask vorticity at the corner ; affects global_ocean.cs output
1473    o fix ini_curvilinear_grid ; test CS experiments with mpi
1474    o aim.5l_cs: modify sea-ice fraction input file ; update output
1475    o exf: Adding simple range check routine for exf fields after read
1476    
1477    checkpoint52k_post
1478    o removed top-level directory "diags"
1479      - we migrated these functions to pkg/timeave a long time ago
1480    o fixed bug introduced in pkg/monitor
1481    o accuracy ctrlprec = 32 insuffient for gradient checks using
1482      averaged fields (I/O via cost_averages)
1483      -> use ctrl.h in active_file*.F to control I/O precision.
1484    o paramter list of CALL ADTHE_MAIN_LOOP
1485    o added initial do_the_model_io to ecco
1486    o set all ...Freq to zero after cost_final
1487      taveFreq, dumpFreq, pChkptFreq
1488    o MAIN and ECCO differentiability restored
1489    
1490    checkpoint52j_post
1491    o fix nchklev in tamc.h for global_ocean...
1492    o Bringing flow and store directives up-to-date
1493    o Really weird thing!
1494      call do_the_model_io from the_main_loop with parameters
1495      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1496      TAF places a faulty re-call of initialise_varia
1497      after cost_final call which should not be there!
1498    checkpoint52j_pre
1499    
1500    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1501      error messages
1502    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1503    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1504      debug output
1505    o modfied mdsio_writefield.F to handle non-global files under exch2
1506    o update AIM Cubed-Sphere exp (aim.5l_cs):
1507      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1508    o update AIM Equatorial Channel exp:
1509      use standard aim_v23 pkg and change the SST fields to be more realistic.
1510    o globalFile now works with exch2
1511    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1512      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1513    o limit timeave output for hi-res integrations
1514    
1515    checkpoint52i_post
1516    o removed CPP_EEOPTIONS.h from verification/*/code
1517    o updated the tiling for global_ocean_pressure
1518    checkpoint52i_pre
1519    
1520    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1521      the old pkg/aim).
1522    
1523    checkpoint52h_pre
1524    o shortened offending lines in exch2_send_rx?.template
1525    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1526    o genmake2: add build & execute test for NetCDF code
1527    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1528      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1529    o added useSingleCPUIO flag to monitor.F and mon_out.F
1530    o added temporary hack for sea-ice dynamics on the cube:
1531      metric terms are ignored and it is assumed that
1532      there is no sea-ice on cube faces 1, 2, 4, and 5.
1533    
1534    checkpoint52f_post
1535    o added exch2 cube routines to pkg/exch2
1536    o modified hs94.cs-32x32x5 to use it
1537    o added new grid files to hs94.cs-32x32x5
1538    checkpoint52f_pre
1539    
1540    checkpoint52e_post
1541    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1542      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1543    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1544      to work with implicit vertical advection and AB ;
1545    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1546    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1547     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1548    checkpoint52e_pre
1549    
1550    o fix bug in impldiff when Nr=1 or Nr=2.
1551    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1552    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1553    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1554      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1555    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1556    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1557    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1558    
1559    checkpoint52d_post
1560    o re-tiled many expts to allow comparison in multi-processor mode
1561      - updated output accordingly
1562      - changed hs94.128x64x5 to use intial T from file rather than use the
1563        random number generator
1564    o add infrastructure in model routines for fizhi and gridalt packages
1565    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1566    o changes to permit hi-res, cubed-sphere, configuration
1567      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1568      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1569      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1570        of surface winds for the cube
1571      (A verification experiment, based on global_ocean.cs32x15, but with
1572       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1573       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1574       complete with example surface forcing files and matlab scripts to look
1575       at the output and compare it with that of global_ocean.cs32x15.)
1576    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1577       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1578       to conform to the common rule.
1579    o check-in the first version of the coupler + interfaces for multi-components
1580       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1581       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1582       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1583       - ocean and atmos. share the same horizontal grid (no interpolation).
1584       - exchanges between component and coupler is done in forward_step
1585    o new verification experiment, cpl_aim+ocn:
1586       coupled ocean - AIM atmosphere on cs32 grid.
1587    
1588    checkpoint52d_pre
1589    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1590    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1591    
1592    checkpoint52c_post
1593    o Fixing OPTIONS files for use of exf:
1594      - ALLOW_ECCO not needed
1595      - ECCO_CPPOPTIONS.h should not be included from
1596        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1597        as has been the case in the past
1598      - All cal/exf related options are currently set in
1599        single header file. Should remain so until we
1600        agree on a consistent new policy.
1601    o Removed all CPP options for cal package.
1602      cal has no more CPP options.
1603    o modified STOREs in GAD_ADVECTION
1604    o corrected key comp. for passkey
1605    
1606    checkpoint52b_post
1607    o new version: "thsice" of thermodynamic sea-ice pkg:
1608     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1609     - modify fluxes but do not change theta directly;
1610     - light cleaning of bulk_force pkg (still needed with thsice).
1611     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1612       + output_thsice.txt to test thsice & bulk_force pkgs.
1613    o put back grid & coriolis monitor output.
1614    checkpoint52b_pre
1615    
1616    o call "do_the_model_io" at the beginning (=> dump initial state)
1617    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1618    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1619      (need info on NUMBER_OF_PTRACERS)
1620    o missing PTRACERS headers in some routines
1621    o default tamc.h in pkg/autodiff supposed to crash
1622      to ensure proper customization
1623    
1624    checkpoint52a_post
1625    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1626      - moved surfaceTendencyTice from pkg/seaice to main code
1627      - subroutine FREEZE_SURFACE now limits only surface temperature
1628        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1629        => new output.txt for global_ocean.cs32x15 & global_with_exf
1630      - keep the old version of FREEZE for backward compatibility;
1631        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1632      - corresponding modifs for TAF directives
1633    o added surface flux output variables to TIMEAVE_STATVARS
1634    o time-averaged output for pkg/ptracers
1635    o fix problem with ECCO-related divided adjoint
1636      snapshot file was missing some ad-variables,
1637      but no warning issued by TAF
1638    
1639    checkpoint52a_pre
1640    o some bug fixes for #undef REAL4_IS_SLOW
1641    
1642    checkpoint52 = ecco_c52_e35
1643    o after testing adjoints of checkpoint51u_post
1644    
1645    checkpoint51u_post
1646    o this is the post-merge tag of the ecco-branch
1647      (needs another clean checkout and re-testing)
1648    o various natl_box_adjoint configs and results
1649      but no input fields
1650    o obcs adjoint not yet merged!
1651    o adding ECCO global 1x1 and 2x2 degree configs
1652    o updated/extended some store directives for seaice
1653    o pkg/ecco now containes ecco-specific part of cost function
1654    o top level routines the_main_loop, forward_step
1655      supersede those in model/src/
1656      previous input data.cost now in data.ecco
1657      (new namelist ecco_cost_nml)
1658    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1659    
1660    checkpoint51t_post
1661    o this is the pre-merge tag of the ecco-branch
1662    
1663    checkpoint51s_post
1664    o cleanup: removed various obsolete #define-s
1665    o pkg/grdchk
1666      - renamed 'ph-grd 3' to 'grad-res'
1667      - merged from ecco-branch
1668        (remaining bug fixes for obcs gradient checks)
1669      - additional high-precision output for testreport
1670        (grep for 'precision_grdchk_result')
1671    
1672    checkpoint51r_post
1673    o cleaned up or removed CPP_OPTIONS.h files
1674    o updated results for some of the tests to reflect the new
1675      optfiles (-ieee: -O0 instead of -O3)
1676    
1677    checkpoint51q_post
1678    o cd_code:
1679      - moved cd_scheme.F -> cd_code_scheme.F
1680      - separate read_checkpoint from cd_code_ini_vars.F
1681      - separated cd_code part from write_checkpoint
1682      - updated AD_SOURCE, generated .flow
1683      - added CD_CODE_VARS.h to the_main_loop
1684      - Moving cd_code specific store dir.s to pkg/cd_code
1685    o ctrl package totally restructured
1686      - pack/unpack now optional and decoupled from
1687        xx_/adxx_ I/O
1688      - ctrl_pack/unpack cleaned
1689        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1690      - confined inclusion of AD_CONFIG.h to where necessary.
1691    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1692    
1693    checkpoint51p_post
1694    o create initial cd_code package
1695      - WARNING: the initialization of fields within packages
1696        is broken because INI_FIELDS (where READ_CHECKPOINT is
1697        called) is called *before* PACKAGES_INIT_VARIABLES.
1698        This seems to be backwards since
1699        1) its important to initially zero the entire field including
1700           the "halo" region
1701        2) zeroing needs to be done *before* reading pickup info
1702           and the pickup call might or might not happen in any
1703           particular run
1704      - this needs an overhaul for R2
1705    o cleanup verification/*/code/GMREDI_OPTIONS.h
1706    o cleanup testreport
1707    
1708    checkpoint51o_post
1709    o bringing AD-related verif's up to date with genmake2
1710      - carbon/
1711      - global_ocean.90x40x15/
1712      - hs.94.1x64x5/
1713      - (front_relax/ )
1714    o (more) consistent directory structure for AD-related verif.'s
1715    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1716    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1717    o bug fix in find_alpha.F for MDJWF:
1718      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1719        change rho -> rho-rhoConst
1720      - replace call find_rho to find_rhonum
1721    o initialisation of rFlx extended to full array (required by TAF)
1722      and shifted to thermodynamics
1723    o removed PTRACERS.h in ptracers routine
1724    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1725    o Correcting initialisations for fVerU, fVerV.
1726    o helping TAF to recognize dependency on kUp for
1727      fVerU, fVerV
1728    o Replacing delZ by delR in pkg/ctrl/
1729    checkpoint51o_pre
1730    
1731    o undid all of cp51 pending some cleanups and discussion
1732    o added the [#include "AD_CONFIG.h"] statement to all files that need
1733       it for adjoint/tl #defines
1734     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1735     o removed tools/genmake since it no longer works
1736    
1737    checkpoint51n_post
1738    o modifications to make FREEZE flux visible to pkg/kpp
1739      - moved surfaceTendencyTice from pkg/seaice to main code
1740      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1741      - subroutine FREEZE now limits only surface temperature
1742        (this means new output.txt for global_ocean.90x40x15,
1743         global_ocean.cs32x15, and global_with_exf)
1744    o added surface flux output variables to TIMEAVE_STATVARS
1745    
1746    checkpoint51n_pre
1747    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1748    o added [#include "AD_CONFIG.h"] to all files that use the following
1749      defines:
1750      - ALLOW_ADJOINT_RUN
1751      - ALLOW_TANGENTLINEAR_RUN
1752      - ALLOW_ECCO_OPTIMIZATION
1753    
1754    checkpoint51m_post
1755    o incorporating changes to get TAMC/TAF working in genmake2
1756      - added new TAMC/TAF targets to the Makefile
1757      - various cleanups related to package handling
1758      - these changes should have no impact on the forward model
1759    
1760    checkpoint51l_post
1761    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1762     - faster algorithm for cal_addtime.F
1763     - higher precision arithmetic, where needed
1764     - pkg/exf *startdate variables changed from calendar date to
1765       model integration time
1766    
1767    checkpoint51l_pre
1768    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1769    o enable to apply restoring on S & T only in a latitude band.
1770    o update output (external_forcing_surf modif. change truncation errors)
1771       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1772    
1773    checkpoint51k_post
1774    o change default to: useNHMTerms=.FALSE.
1775     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1776       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1777     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1778        exp1, ideal_2D_oce
1779     - change data file of oceanic exp (leave the results unchanged for now)
1780       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1781    o set gravitySign automatically according to the vertical coordinate used
1782      (and change sign: back to "logical" value: +1 when R increases downward)
1783    o added an include barrier to the default CPP_OPTIONS.h and
1784      removed the #include "PACKAGES_CONFIG.h" from it
1785    o fix a bug in mom_fluxform (from chk51j_post)
1786    
1787    checkpoint51j_post
1788    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1789    o adjusted some flow directives (dynamics, thermodynamics)
1790    o added cubed-sphere case to test cost function
1791    o heckpoint_lev?_directives.h now include
1792      pkg-specific directives, whenever those are enabled.
1793    o Moving pkg-specific flow directives to corresponding pkg
1794      Moving pkg-specific differentiation list to corresponding pkg
1795      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1796      ---> conventions are
1797           - pkg_ad.flow
1798           - pkg_ad_diff.list
1799           - pkg_ad_check_lev?_dir.h
1800    
1801    checkpoint51i_post
1802    o merge of the branch-genmake2
1803      - knowingly breaks the older genmake
1804      - automatic generation of all ALLOW_${PKG_NAME} defines
1805      - new testreport supersedes older testscript
1806    o large number of package inclusion and header cleanups
1807    checkpoint51i_pre
1808    
1809    o new output for adjoin of global ocean vector invariant
1810    o fix for checkpoint of thermodynamic seaice and bulk_force
1811    o Steph gchem various cleanups
1812    
1813    checkpoint 51h_pre
1814    o fixed some single quotes
1815    o modify gchem pkg to be more versatile
1816    o modifications to clean up dic pkg
1817    o add pkg/cfc
1818    
1819    checkpoint51g_post
1820    o provide links for ARPACK and ADM*TLM
1821    o start removing verification/vero/
1822    o update AD-related stuff
1823      (in particular some IF-statements in model/src/ routines)
1824    o adding to verification/global_ocean.90x40x15/ adjoint of
1825      vector invariant setup
1826    
1827    checkpoint51f_post
1828    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1829    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1830      of tracer Green's fucntions for ocean inversion project.
1831    
1832    checkpoint51f_pre
1833    o Added on-the-fly spatial interpolation capability
1834        "USE_EXF_INTERPOLATION" to pkg/exf.
1835      - This is a temporary Cartesian-grid hack until
1836        the super-duper ESMF coupler becomes available.
1837      - See verification/global_with_exf/README for usage example.
1838      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1839        flags and modified pkg/seaice accordingly.
1840    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1841        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1842        non-local transport term.
1843    
1844    checkpoint51e_post
1845    o pkg/mom_vecinv:
1846      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1847      - add time-ave diagnostic of vorticity advection.
1848    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1849    o atmospheric geopotential: - include water vapor effect;
1850                                - use p^kappa in p* scaling.
1851    o land pkg: read initial state from files.
1852    o AIM : add stratospheric drag in the upper level
1853    
1854    checkpoint51d_post
1855    o change function ILNBLNK (=> last non-blank char.) to return zero
1856      (instead of the string length) when the string. char is empty
1857    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1858    o modif's to restore TAMC compatibility
1859      - avoid "_d" constructs in PARAMETER declarations
1860      - avoid interrupting lines by comment lines
1861    o Use cluster local disks for purely local I/O
1862      vs. globally visible disks needed for ctrl stuff
1863      (merged from ecco-branch)
1864      - new active_file_loc... and mdsio_..._loc routines
1865      - affected packages: autodiff, ctrl, grdchk, mdsio
1866    
1867    checkpoint51c_post
1868    o introducing integer flag debugLevel
1869      - debLevZero: suppress all output
1870      - debLevA: standard
1871      - debLevB: equivalent to current debugMode=.TRUE.
1872    o introducing pathname variable mdsioLocalDir for mdsio
1873      that can be specified at runtime
1874      (relevant for cluster I/O to local disk)
1875    `
1876    >>>checkpoint51b_post
1877    adjoint of ptracers
1878    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1879    o extended state in checkpoint_lev?, etc.
1880    o alternative ctrl/cost with tr1 or ptracer
1881    o new comlev1_bibj_ptracers
1882    o new ptracers.flow
1883    o made ptracers_forcing same as external_forcing_s
1884    o added verification for adjoint with ptracers
1885      - adm. grdchk fail so far
1886      - tlm. grdchk OK
1887      - checked tapelev/comlev recomputations: OK
1888    <<<checkpoint51b_pre
1889    
1890    checkpoint51a_post
1891    o added code for biogeochemistry package
1892      - new pkgs: dic, gchem
1893      - new subroutine in ptracers
1894    o modify code for biogeo packages
1895      - in model/src and pkg/ptracers
1896    
1897    checkpoint51
1898    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1899      - autodiff, ctrl, exf, grdchk, seaice
1900      kept separate packages
1901      - cost, ecco, obcs
1902    o updating verification/internal_wave, verification/lab_sea
1903      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1904    
1905    checkpoint50i_post
1906    o Preparing next differentiable checkpoint and sync
1907      of MAIN vs. ecco-branch
1908      - 1st step: this one is differentiable
1909      - 2nd step: next(! not this) checkpoint will have updated packages
1910                  from ecco-branch)
1911    
1912    checkpoint50h_post
1913    o new package "land": provide surface BC for AIM.
1914    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1915    o AIM: use true log-P extrapolation for near surface temp (= as in
1916        F.Molteni paper) ; update aim.5l_cs output.
1917    o New variable in PARM03 for more flexible pickups
1918    o somewhat cleaned package initialisation sequence for
1919      ctrl/ cost/ ecco/ in packages_... routines
1920    
1921    checkpoint50g_post
1922    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1923      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1924      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1925        made the default because of faster convergence than ADI
1926    
1927    checkpoint50f_post
1928    o exf totally restructured
1929      - replaced all exf_set_ routines by one generic exf_set_gen.F
1930        and made sure it's still differentiable
1931      - split exf_getffields.F into new exf_bulkformulae.F
1932      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1933      - updated adjoint/makefile and relevant verif. accordingly
1934    
1935    checkpoint50f_pre
1936     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1937          + change Evap over land. (update aim.5l_cs output)
1938     o added missing .cvsignores and made uniform across expts
1939     o changed configuration of tidal_basin_2d expt
1940     o added pkg/debug functions for tracing code in fatal crashes
1941     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1942     o new fn in pkg/monitor to stop model if solution grows too big
1943     o removed lots of single quotes from comments
1944    
1945    checkpoint50e_post
1946    o make KPP work with PTRACERS
1947     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1948       nearly a copy of kpp_transport_s
1949     - there is no analogue to SurfaceTendencyS, so I have to use
1950       gPtr(of the surface layer) instead
1951    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1952    checkpoint50e_pre
1953    
1954    checkpoint50d_post
1955    o change kpp output from multiple-record state files to single-record state
1956      files analogous to write_state.F
1957    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1958      analogous to the cg2d-related output.
1959    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1960      so that writing to internal file fn (with length 512) fails.
1961    checkpoint50d_pre
1962    
1963    checkpoint50c_post
1964    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1965    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1966    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1967    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1968    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1969    
1970    checkpoint50c_pre
1971    Merging from release1_p13:
1972    o bug fix for pkg/seaice dynamic solver
1973    o Added SEAICE_initialHEFF to pkg/seaice
1974    
1975    checkpoint50b_post
1976    o store u*,v* in gU,V instead of in guNm1,gvNm1
1977    o in order to put the momForcing out of the Adams-Bashforth:
1978      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1979      to timestep.F
1980    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1981    o re-generate output for highly sensitive test-exp:
1982       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1983    
1984    checkpoint50b_pre
1985    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1986    o corrected CPP option mismatch in exf_Bulk... functions for case
1987      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1988    
1989    checkpoint50a_post
1990    o Bug fix for merging between c50 and KPP.
1991      ikey was passed from thermodynamics to kpp_calc via
1992      common block rather than being recomputed in kpp_calc,
1993      in contradiction with new key itdkey.
1994      New key ikppkey created, and tamc.h headers updated.
1995    
1996    checkpoint50
1997    - 2nd step of merge with ecco-branch:
1998      merge changes in ecco-branch back into main trunk
1999    - bug fix in find_alpha
2000    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2001    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2002    - merged some sliced AD support routines
2003    
2004    checkpoint49
2005    merged from ecco-branch:
2006    o exf:
2007      - Enable initialisation of forcing fields to constant
2008        (runtime) values.
2009      - in exf_getffields.F
2010        Reduce i-/j-loop to interior domain, discarding overlaps.
2011        That also fixes wrong TAF-key computations for key_1, key_2
2012        with bulf formulae.
2013      - exf_init.F modify #ifdef for exf_init_evap
2014      - exf_getffieldrec.F, ctrl_getrec.F
2015        The following INT-usages are not safe:
2016          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2017          fldcount = int(fldsecs/fldperiod) + 1
2018        and were modified.
2019    o autodiff: checkpoint_lev...
2020      - updated storing for bulk formulae (some arrays were missing)
2021      - added state for seaice package
2022      - synchronized with main branch
2023    o DIVA:
2024      Modif.s in
2025      - the_main_loop.F
2026      - the_model_main.F
2027      and added cost_final_restore.F cost_final_store.F
2028      o With these changes, it is possible to fully separate
2029        the first forward run to compute the cost function (mdthe_main_loop)
2030        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2031        into separate model executions.
2032        This enables better tuning of DIVA to given queue sizes.
2033      o Loss of cost function value in consecutive DIVA runs is
2034        fixed by storing to 'costfinal' file.
2035      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2036        beginning/end of adjoint integration is accounted for.
2037      The current changes apply to TAF-1.4.26.
2038      TAF has one remaining bug, requiring one manual change
2039      (see MITgcm manual).
2040    o cal: synchronized between MAIN and ecco-branch
2041    
2042    checkpoint48i_post
2043    o Changes to restore differentiability of code w.r.t. previous tag
2044      (mostly adding new routines to make list and replacing
2045      pressure by totPhiHyd).
2046    o Updated and merged grdchk package
2047      - has both ADM and TLM checks
2048      - works for single- and multi-proc.
2049      - output cleaned
2050      - worked successfully for parallel DIVA
2051    o genmake:
2052      - Adding -platform=SP4
2053      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2054    o Modif. for DIVA:
2055      ctrl_unpack should not be called in intermediate DIVA interval.
2056      (similar thing would apply for active files such as
2057      tbar, sbar, psbar, which should not be reinitialised;
2058      only relevant for ecco-branch)
2059    
2060    checkpoint48h_post
2061    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2062    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2063    o Added SEAICE_initialHEFF to pkg/seaice
2064    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2065    
2066    checkpoint48g_post
2067    --- EOS:
2068    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2069      store total Potential in totPhyHyd for diagnostics & EOS.
2070    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2071    --- Pressure/geopotential gradient:
2072    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2073    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2074      ( changes results of global_ocean_pressure )
2075    o NLFS + z-coord.: add eta*Rho' contribution.
2076    o accurate phiHyd when using interface-W at the middle between 2 centers
2077     ( changes results of ideal_2D_oce )
2078    o includes r* 2nd term in potential gradient.
2079    
2080    checkpoint48f_post
2081    Merging from release1_p12:
2082    o Modifications for using pkg/exf with pkg/seaice
2083      - improved description of the various forcing configurations
2084      - added basic radiation bulk formulae to pkg/exf
2085      - units/sign fix for evap computation in exf_getffields.F
2086      - updated verification/global_with_exf/results/output.txt
2087    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2088      (SBO) core products, including oceanic mass, center-of-mass,
2089      angular, and bottom pressure (see pkg/sbo/README.sbo).
2090    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2091      to avoid negative values in shallow regions.
2092      - updated verification/natl_box/results/output.txt
2093      - updated verification/lab_sea/results/output.txt
2094    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2095    o Added useSingleCpuIO option (see PARAMS.h).
2096    o Updated useSingleCpuIO option in mdsio_writefield.F to
2097      work with multi-field files, e.g., for single-file pickup.
2098    o pkg/seaice:
2099      - bug fix in growth.F: QNET for no shortwave case
2100      - added HeffFile for specifying initial sea-ice thickness
2101      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2102    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2103      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2104    o pkg/seaice:
2105      - adjoint-friendly modifications
2106      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2107    
2108    checkpoint48e_post
2109    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2110    o dynamics: change definition of computational domain & adapt mom_fluxform
2111      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2112    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2113        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2114        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2115        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2116        inverted_barometer solid-body.cs-32x32x1
2117      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2118    
2119    checkpoint48d_post
2120    o in preparation for r*:
2121     a) use pre-computed gradient of hydrostatic potential:
2122        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2123     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2124        => affects results of glob_oce_pressure (different truncation error)  
2125      update output.txt of ideal_2D_oce & global_ocean_pressure
2126    
2127    checkpoint48d_pre
2128    o in preparation for r*:
2129      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2130      pass the 2 comp. of the grad. as arguments to momentum S/R.
2131      but for the moment, only used if it does not change the results.
2132    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2133    
2134    checkpoint48c_post
2135    Modifications in treatment of initial flux forcing controls
2136    to avoid extra storing of flux fields.
2137    
2138    checkpoint48c_pre
2139    o Added tidal_basin_2d experiment (currently 1D!)
2140    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2141    
2142    checkpoint48b_post
2143    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2144     (modification to pressure gradient not yet implemented)
2145    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2146      (for U & V) that are used for vertical advection of momentum.
2147    
2148    checkpoint48a_post
2149    o In preparation for r*, use temp. array to compute vertical transport
2150       in flux-form momentum pkg. => change results of few test-exp.
2151      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2152                        lab_sea, natl_box & plume_on_slope
2153    
2154    checkpoint48
2155    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2156    
2157    checkpoint47j_post
2158    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2159    o moved adexch from forward_step to addummy_in_stepping
2160    o added exch in ctrl_map_...
2161    o aveFreq.=0. at end of cost_final to avoid overwrite in
2162      reverse checkpointing loop
2163    o Yet more changes in gmredi:
2164      * adgmredi_calc_tensor
2165        avoiding all recomputation of gmredi_slope_limit
2166      * adgmredi_x/y/rtransport
2167        added flag for excessive storing to avoid recomp. of
2168        u/v/rtans, dTdx/y/z
2169        -> this is not really necessary and very memory-consuming
2170      * adgmredi_slope_psi:
2171        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2172      * gmredi_slope_limit
2173        re-activated full calculation of taperfct for case 'ac02'
2174    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2175    
2176    checkpoint47i_post
2177    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2178    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2179      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2180    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2181    o gmredi: fix few bugs.
2182    
2183    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2184    This will be a good checkpoint to plug into the ecco-branch.
2185    o few modif.'s to get latest version adjointed
2186      (mainly kick out code in ini_linear_phisurf)
2187    o modif's to run adjoint with exactConserv
2188    o case GM_BOLUS_ADVEC should be cleaned
2189      S/R gmredi_slope_psi should be cleaned
2190    o verification/carbon now has exactConserv=.TRUE.
2191    
2192    checkpoint47g_post
2193    o time-average AIM output: becomes independent from statvars time-average
2194      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2195    o After TAF bug fix:
2196      Tested adjoint of gmredi package.
2197      Tests were done with checkpoint47 rather than with latest
2198      checkpoint47f_post since the latter is broken for the adjoint
2199      verification/carbon/ contains both ADM and TLM gradient checks.
2200    Here they are, before they get changed/lost/stolen.
2201    Mostly modif.'s to fix numerical sensitivities.
2202    Gradient checks OK for
2203    - GM_taper_scheme:
2204      * clipping
2205      * ac02
2206      * linear
2207      * glw91
2208      * dm95
2209      * ldd97
2210    - GMREDI_OPTIONS:
2211      * GM_VISBECK_VARIABLE_K
2212      * GM_NON_UNITY_DIAGONAL
2213      * GM_EXTRA_DIAGONAL
2214      * GM_BOLUS_ADVEC
2215    in conjunction with data.gmredi parameters to be checked in
2216    in a few minutes under verification/carbon/code/
2217    
2218    checkpoint47f_post
2219    Merging from release1_p10:
2220    o modifications for using pkg/exf with pkg/seaice
2221      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2222        and SEAICE_EXTERNAL_FLUXES
2223      - pkg/exf CPP options EXF_READ_EVAP and
2224        EXF_NO_BULK_COMPUTATIONS
2225      - usage examples are Experiments 8 and 9 in
2226        verification/lab_sea/README
2227      - verification/lab_sea default experiment now uses
2228        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2229    
2230    checkpoint47e_post
2231    o created a tag prior to creating a branch
2232    
2233    checkpoint47d_post
2234    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2235      at the bottom boundary had an erroneous half slip boundary condition
2236    o added bottom drag and no slip boundary condition capabilities to
2237      oceanic pressure coordinates code
2238    o added new verification experiment global_ocean_pressure, this experiment is
2239      also described in the tutorial section of the manual
2240    checkpoint47d_pre
2241    
2242    checkpoint47c_post
2243    o Added a verification experiment for a global cubed-sphere ocean run
2244      -  verification/global_ocean.cubed32x32x30
2245      -  uses pkg/therm_seaice and pkg/bulk_forcing
2246    
2247    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2248    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2249      when using P-coordinate; only implemented for atmospheric config.
2250    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2251      NOTES: requires option NONLIN_FRSURF to be "#define".
2252    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2253    
2254    checkpoint47b_post
2255    Merging from release1_p9:
2256    o pkg/seaice
2257      - removed GOTO's and added taf directives
2258      - double precision constants to reduce the g77 (Linux)
2259        to F77 (SGI) differences reported in release1_p8
2260    o tools/genmake
2261      - added SGI options
2262    o verification/testscript
2263      - updated to that of checkpoint47a_post
2264    o verification/global_ocean.90x40x15/input/eedata
2265      - modified for SGI f77 compatibility
2266    o verification/lab_sea
2267      - added description of sea-ice model
2268      - added missing matlab routines
2269      - added test of thermodynamics parallelization
2270    
2271    checkpoint47a_post
2272    o new pkg: aim_v23
2273     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2274       for now, keep the same surface forcing as before.
2275     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2276     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2277     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2278    o add diagnostic of surface correction term in monitor output
2279    
2280    o bulk_force and therm_seaice
2281    - Two packages:  bulk_force (Bulk forcing)
2282      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2283    - Earlier integration from Stephaine Dutkiewicz
2284      and Patrick Heimbach.
2285    - Two ifdef statements for compile time,
2286       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2287    
2288    checkpoint47
2289    differentiable version of checkpoint46n_post
2290    o bug fix in quasihydrostaticterms
2291    o * "clean" adjoint code (in terms of extensive recomputations)
2292        can now be obtained for all GMREDI options (i.e. for
2293        - GM_VISBECK_VARIABLE_K
2294        - GM_NON_UNITY_DIAGONAL
2295        - GM_EXTRA_DIAGONAL
2296        - GM_BOLUS_ADVEC )
2297      * However, wrong gradient check problem remains unsolved.
2298      * New CPP options have been introduced for different
2299        tapering schemes
2300    o external_fields_load now part of differentiation list
2301    o pressure needs multiple storing;
2302      would be nice to have store_pressure at beginning or
2303      end of forward_step, e.g. by having phiHyd global (5-dim.)
2304      (NB: pressure is needed for certain cases in find_rho,
2305      which is also invoked through convective_adjustment).
2306    o recomputations in find_rho for cases
2307     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2308    o #define ATMOSPHERIC_LOADING should be differentiable
2309    o ini_forcing shifted to begining of initialise_varia
2310    o Incorporating QNVS line search routines into MITgcm
2311      (this is separate code, and therefore not under pkg)
2312      lsopt/, optim/
2313    o Updated verification/carbon/
2314      - #define GM_VISBECK_VARIABLE_K
2315      - GM_taper_scheme    = 'ldd97'    
2316    
2317    checkpoint46n_post
2318    Merging from release1_p8:
2319    o verification/natl_box:
2320      updating new external_fields_load routine
2321    o New package: pkg/seaice
2322      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2323      The sea-ice code is based on Hibler (1979-1980).
2324      Two sea-ice dynamic solvers, ADI and LSR, are included.
2325      In addition to computing prognostic sea-ice variables and diagnosing
2326      the forcing/external data fields that drive the ocean model,
2327      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2328      The implied surface heat flux is then stored in variable
2329      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2330      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2331      non-local transport term.  Because this call precedes model
2332      thermodynamics, temperature under sea-ice may not be "exactly" at
2333      the freezing point by the time theta is dumped or time-averaged.
2334      N.B.: fairly large differences in accuracy occur across
2335            different platforms/compilers; comparison between
2336            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2337            generated output gives:
2338       T           S           U           V
2339      C D M    c        m  s        m  s        m  s        m  s
2340      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2341      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2342      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2343    
2344      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2345    o GAD:
2346      - generated new common blocks to account for call of
2347        same gad routines with differing traceridentities
2348        (needed to modify tracerIdentity indices in GAD.h)
2349      - generated separate common blocks for case useCubedSphereExchange
2350        (Department of Futurology)
2351      - parameter lists to gmredi_?transport: added tracerIdentity
2352      - added new key indices to tamc.h
2353    o external_fields_load:
2354      - added this routine to TAF list
2355      - needed to make some common blocks global and additional storing
2356        along the same lines as exf package (checkpoint_lev?_directives.h)
2357    o exf:
2358      updated external forcing package
2359      - bug fixes carried over from ecco-branch
2360        (missing OBCS_OPTIONS.h in two routines)
2361      - enable easy to use "no forcing".
2362      - added exf I/O for atmospheric loading
2363      - added exf I/O for runoff data
2364      - transfered scaling between exf <-> MITgcm to exf namelist
2365    o Adding new verification experiment global_with_exf.
2366      This verification experiment is almost identical to the
2367      global_ocean.90x40x15 experiment, except that it uses
2368      the exf (and cal) package instead of the
2369      external_fields_load routine (cf README file).
2370    
2371    checkpoint46m_post
2372    o modified testscript to return -- when there are no lines of "%MON" output
2373    o added new flag "quasiHydrostatic" for QH mode
2374      and new routine quasihydrostaticterms()
2375    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2376      New routine: mom_u_coriolis_nh()
2377    o fixed sign of non-hydrostatic metric terms in u and v equations.
2378      Depend on correct sign of gravitySign.
2379    o added work.pc* to .cvsignore in aim directories using ifc
2380    o introduced flag for controllin non-hydrostatic metric terms
2381    o removed gravitySign from PARM04
2382    o switched to g77/ifc from pgf77 in aim experiments
2383    
2384    checkpoint46l_post
2385    o made convective adjustment work with pressure coordinates:
2386     - changed the direction of k-loop in convective_adjustment.F for the
2387       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2388     - adjusted the reference pressure k-index in convective_adjustment.F
2389     - adjusted the convection condition in convect.F (in analogy to
2390       calc_ivdc.F)
2391     - convective_adjustment no longer computes anything on the halos
2392     - removed the warnings about negative salinity from find_rho.F and
2393       find_alpha.F; instead the new routine look_for_neg_salinity, called
2394       at the beginning of find_rho, find_alpha, and find_beta, does a
2395       check of the entire slice, if CPP-option
2396       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2397    checkpoint46l_pre
2398    
2399    checkpoint46k_post
2400    o fixed the verification/global_ocean.90x40x15 experiment:
2401     - new bathymetry (the world according to A., JMC, and M.)
2402     - new initial fields and forcing fields (*.bin files)
2403     - new POLY3.COEFFS (for the next release one should switch to a full
2404       equation of state: JMD95P or MDJWF)
2405     - fixed several errors and redundancies in the data file
2406     - experiment uses looped cells
2407     - added matlab directory with diagnostic scripts for plotting of output
2408    
2409    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2410     - read AIM physics parameters from a file (data.aimphys)
2411     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2412    
2413    checkpoint46j_post
2414    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2415    o move wVel computation at the end of the time step, in S/R integr_continuity
2416    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2417    o update timeave pkg for wVel diagnostic.
2418    checkpoint46j_pre
2419    
2420    checkpoint46i_post
2421    o Clean up AIM package (and keep the results unchanged):
2422      include CPP_OPTION and use IMPLICT NONE in all routines ;
2423      declare all the variables _RL ; use _d 0 for all numerical constants.
2424      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2425    
2426    checkpoint46h_post
2427    o cleaned up the use of rhoNil and rhoConst.
2428      - rhoNil should only appear in the LINEAR equation of state, everywhere
2429        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2430        and the dynamical equations are all divided by rhoConst
2431    o introduced new parameter rhoConstFresh, a reference density of fresh
2432      water, to remove the fresh water flux's dependence on rhoNil. The default
2433      value is 999.8 kg/m^3
2434    o cleanup up external_forcing.F and external_forcing_surf.F
2435      - can now be used by both OCEANIC and OCEANICP
2436    checkpoint46h_pre
2437    
2438     Added code to convert surface volume flux (fresh water) into
2439     a mass flux when using P coordinates in the ocean (OCEANICP).
2440     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2441    
2442    checkpoint46g_post
2443    o Include a new diagnostic variable phiHydLow for the ocean model
2444      - in z-coordinates, it is the bottom pressure anomaly
2445      - in p-coordinates, it is the sea surface elevation
2446      - in both cases, these variable have global drift, reflecting the mass
2447        drift in z-coordinates and the volume drift in p-coordinates
2448      - included time averaging for phiHydLow, be aware of the drift!
2449    o depth-dependent computation of Bo_surf for pressure coordinates
2450      in the ocean (buoyancyRelation='OCEANICP')
2451      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2452        Theta, Salinity, and Pressure in the parameter list. This routine is
2453        presently contained in find_rho.F. This routine does not give the
2454        correct density for 'POLY3', which would be a z-dependent reference
2455        density.
2456    o cleaned up find_rho
2457      - removed obsolete 'eqn' from the parameter list.
2458    o added two new verification experiments: gop and goz
2459      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2460    checkpoint46g_pre
2461    
2462    checkpoint46f_post
2463    o Enable tangent linear (forward mode) gradient checks:
2464      - extended active file handling to g_... files
2465      - added TANGENT_SIMULATION to theSimulationMode
2466      - extended grdchk package accordingly
2467    o added tangent linear setup in verification/carbon/code_ftl
2468    o added adjoint setup in verification/front_relax/code_ad
2469    
2470    checkpoint46e_post
2471    o Added new equation of state -> MDJWF
2472      - EOS of McDougall et al., 2002, JAOT, submitted
2473      - caveat: the equation of state is only valid for a smaller (more
2474        realistic?) range of values than JMD95P/Z and UNESCO
2475      - added masks to the calculation of pressure in store_pressure
2476      - added more check values for density in check_eos (ini_eos.F), some of
2477        the old check values are out of the range of the MDJWF-eos, so don't
2478        expect perfect matches for those
2479    checkpoint46e_pre
2480    
2481    checkpoint46d_post
2482    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2483      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2484      case of pressure coordinates. eosType='JMD95Z' in
2485      combination with buoyancyRelation='OCEANICP' now causes an error.
2486    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2487      in find_alpha/beta.
2488    checkpoint46d_pre
2489    
2490    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2491      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2492    
2493    checkpoint46c_post
2494    o Changes necessary for ocean in p-coordinates
2495     -  Added new buoyancy relation = 'OCEANICP'
2496     -  Added new parameters = gravitySign (this used to be contained inside
2497        the factor dRdZ which I added when we first switched to R coordinates).
2498     X GM/Redi is not compatible (yet)
2499     X bottom drag and no-slip need to be debugged.
2500    checkpoint46c_pre
2501    
2502    checkpoint46b_post
2503    o Added new equation of state -> JMD95Z and JMD95P
2504      - EOS of Jackett and McDougall, 1995, JAOT
2505      - moved all EOS parameters into EOS.h
2506      - new routines ini_eos.F, store_pressure.F
2507    o Added UNESCO EOS, but not recommended because it requires
2508      in-situ temperature (see JMD95)
2509    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2510      unesco.f to be used with POLY3
2511    checkpoint46b_pre
2512    
2513    checkpoint46a_post
2514    o Added (atmospheric) pressure loading
2515      - new field in FFIELDS.h, etc...
2516      - new cpp flag ATMOSPHERIC_LOADING
2517    o Changed hFacC to _hFacC in calc_phi_hyd.F
2518    o Added SHORTWAVE_HEATING to some files for consistency
2519    checkpoint46a_pre
2520    
2521    checkpoint46
2522    further merges from release1_p5
2523    o new ctrl package
2524      - adopted from ECCO environment to enable optimization
2525      - added Eliassen Palm fluxes to controls
2526    o added Eliassen Palm flux controls to gradient check package
2527    o cost package
2528      - Compatible with new ctrl package
2529      - added Eliassen Palm cost hooks
2530      - modif's of existing cost functions
2531    o Adjoint-related bug fixes in kpp:
2532      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2533      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2534    o autodiff package
2535      - flow directives:
2536        + new for S/R do_the_model_io
2537        + enhanced for S/R checkpoint
2538        + new gmredi.flow
2539      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2540        disable adcommon.h/g_common.h by default.
2541      - fixed problem for adjoint of global_max
2542    o modified verification/carbon/
2543    o New setup for adjoint of global_ocean
2544    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2545    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2546    o incorporated hooks for sponge layer code (external_forcing.F)
2547    
2548    checkpoint45d_post
2549    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2550  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2551    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
2552    o add new parameter deltaTfreesurf for free-surface time stepping
2553    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2554  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2555  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
2556  o add new flags:  o add new flags:

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