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revision 1.121 by heimbach, Tue Jan 21 19:44:45 2003 UTC revision 1.688 by jmc, Sun Jun 25 22:48:19 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/thsice with pkg/seaice dynamics:
8    - fix domain of computation (interior only, required for exf) and do exchanges
9    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
10    o towards a standard way of dealing with multi-threading in MONITOR
11      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
12    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
13       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
14    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
15    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
16    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
17       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
18    o tracer advection:
19     - clean-up and simplify calc_common_factors.F
20     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
21       advection subroutine (but still not used within DST advection S/R)
22    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
23    
24    checkpoint58j_post
25    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
26      from file (collects calls previously in FORWARD_STEP)
27    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
28    o adjoint store dir. adjusted accordingly
29    o genmake2
30      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
31    
32    checkpoint58i_post
33    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
34      on wind stress (SEAICEstressFactor defaults to 1.)
35    o Total number of Timers is finite (<=40): comment out 2 non-essential one
36      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
37    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
38      on CS-grid: no longer loosing mass.
39    o exf & curvilinear-grid: no longer modify longitude xC & xG.
40    o pkg/ggl90: fix sloppy output and fix a bug
41    o pkg/seaice: added SEAICEuseEVPpickup parameter
42      - Set to false in order to start EVP solver with
43        non-EVP pickup files when using SEAICEuseEVP
44      - fix sign error in diffusion in seaice_calc_rhs
45    
46    checkpoint58h_post
47    * Modifications for bottom topography control
48      o replace hFacC by _hFacC at various places
49      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
50      o add non-self-adjoint cg2d_nsa
51      o update autodiff support routines
52      o re-initialise hfac after ctrl_depth_ini
53      o works for 5x5 box, doesnt work for global_ocean.90x40x15
54    * Adding verification for 5x5 box (4-layer) bottom topography control
55    
56    checkpoint58g_post
57    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
58       used for mean seasonal cycle, mean diurnal cycle); add an example
59       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
60    o pkg/ggl90:
61      - add parameter (minimum surface kinetic energy)
62      - fix bug (avoiding division by zero)
63    o couple pkg/thsice to pkg/seaice:
64      - modify advection in seaice to accomodate new scalar fields to be advected
65      - only muliDimAdection scheme work with seaice/thsice
66      - mapping of thsice-variables to seaice-variables, back and forth
67      - does not break the verification experiments, but does not give the
68        desired results either
69    o pkg/seaice
70      - make (default) second order advection a bit less confusing?
71    
72    checkpoint58f_post
73    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
74      to pkg/seaice):
75      - new routines thsice_map_exf and thsice_get_exf provide the interface
76      - add an additional formal parameter to thsice_solve4temp
77    o pkg/exf:
78      - add new fields wspeed, snowprecip (to be able to couple to thsice)
79      - correct Stefan-Boltzmann constant
80      - new parameter for longwave surface emittance
81      - separate some stuff from exf_bulkformulae into new routines  
82        exf_radiation, exf_wind
83      - add new parameters and constants: longwave emissivity for ocean, ice
84        and snow, evaporation parameters over ice
85      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
86        either wind from stress or stress from wind
87    o pkg/thSIce:
88    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
89    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
90       and THSICE_CALC_THICKN
91    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
92    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
93      to make debugging easier.
94    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
95    o pkg/bulk_force:
96      - clean-up comments and parameters ;
97      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
98    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
99      generate new output for test-experiment: aim.5l_cs.thSI
100    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
101      testreport accordingly
102    
103    checkpoint58e_post
104    o SEAICE_CGRID adjoint done
105    o R_STAR adjoint implemented.
106      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
107      * need to sort out init. of h0facc, etc.
108    o Make pkg/profile fully independent of ecco,cost, etc. stuff
109      to be able to use it in pure forward.
110    
111    checkpoint58d_post
112    o upgrade simple test-experiment to tutorial example:
113     step.1: duplicate the experiment and (step.2) will remove the old copy.
114      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
115      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
116      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
117      tutorial_global_oce_biogeo    <- copy of dic_example
118      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
119      tutorial_plume_on_slope       <- copy of plume_on_slope
120      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
121      tutorial_global_oce_optim     <- empty for now (David ?)
122      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
123     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
124    o correct a sign problem in cost_scat.F
125    o obcs and ptracers: fix boundary conditions for advections schemes
126      with larger stencil
127    o thsice adjoint: start
128    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
129      completeness
130    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
131      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
132    o ptracers adjoint:
133      * avoid extensive recomputatations
134      * fix missing re-init. of gptr (missed by TAF)
135    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
136      me to turn off the excessive output to STDOUT that this package produces
137    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
138      and add those terms in Vector-Invariant formulation.
139    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
140      if the control period (xx_hfluxperiod etc) is 0
141    o in profiles pkg, clean routines and fix details
142    o in ecco pkg, reading ssh data:
143      fix problem in case the model does not start at iter0=0
144    o fix mnc-pickup/restart for ptracers
145    o new package prifiles:
146      code to compute profile-based cost by Gael Forget
147      (modifs in ecco, ctrl, autodiff)
148    o Benign bug fix in initialization (spotted by M. Mazloff) of
149      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
150    
151    checkpoint58c_post
152    o adjoint: finish NLFS adjoint and provide reference output in
153      verification/global_ocean.90x40x15/results_ad_nlfs
154    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
155      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
156      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
157      with SEAICE_CGRID defined.
158    o move calendarDumps from "data" to "data.cal" and clean-up the code
159      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
160    o add useEXF & useCAL flags (for now, set in hard-coded way)
161    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
162      (were missing in NH mode, and wrong in quasihydrostatic mode).
163      waiting for Chris updated version of calc_gw to add those CALLs.
164    o fix bug in quasihydrostatic S/R ;
165      add a test for this option: global_ocean.90x40x15.qshyd
166    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
167      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
168    o add on/off flag useOffLine for package OFFLINE
169    o seaice:
170      - modify advection so that it works also on the C-grid
171      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
172        problem in multi-tile runs with C-grid
173      - add flags for clipping ice velocities and/or masking solver forcing
174      - fix drag (ocean on ice) formulation and a bug that caused noise in the
175        C-grid solver
176      - added a few comments to seaice_diffusion.F
177      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
178        are now exclusive)
179      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
180        required re-ordering the code a little:
181       + make DAIRN global variable (defined in SEAICE)
182       + move computation of the viscosities eta and zeta into a new separate
183         routine (because I need to recompute them in seaice_ocean_stress.F)
184    
185    checkpoint58b_post
186    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
187      update output.txt of exp. aim.5l_cs.thSI
188    o various mnc cleanups and improvements:
189      + shrink lookup tables by factor of ~4
190      + better error reporting when running out of lookup space
191      + able to handle longer path/file names (up to 500 chars)
192    o adjoint:
193      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
194      - TBD: "hidden" mom_vecinv recomp. in dynamics
195    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
196     (allow to differentiate between forcing components using new integer flags:
197      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
198     and add new flag to put Dissipation tendency out of Adams-Bashforth.
199    o ecco
200      - enable trend removal from SSH anomaly obs.
201    o adjoint
202      - a fix for PmEpR when #undef EXACT_CONSERV
203      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
204      - try to fix "hidden" recomp. in forward_step for NLFS
205        (NLFS seems broken sometimes after I checked it in)
206    o seaice:
207     - add c-grid version of the dynamic solver:
208       + three new routines that are the c-grid substitute lsr, dynsolver
209         and ostres
210       + put a few fields that were local to dynsolver into global common
211         blocks, so that I can move the computation of stresses etc into
212         seaice_lsr (saves coding but may break the adjoint).
213     - replace more hardwired parameters by runtime parameters
214     - add ice masks that mask the rhs of the implicit solvers where there
215       is no ice (commented out in seaice_dynsolver, because i am not sure
216       if this works properly), eventually this should replace the clipping
217       of ice velocities in seaice_dynsolver to +/-40cm/s.
218    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
219      include it only where its needed
220    o move balancing of fluxes before the call of external_forcing_surf
221    o seaice:
222      - correct units of turning angles (now they are really in degrees)
223      - move computation of GWATX/Y out of main routine into dynsolver
224      - initialize GWATX/Y in seaice_init
225    o Apply mask on Fresh-Water flux (needed for SSH forcing).
226      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
227    o seaice: add runtime flags for turning angles (default to zero)
228    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
229      and trend from exf forcing and ctrl control adjustments
230    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
231      (since checkpoint57x_post)
232    o change the default rotation period to 86164.s = the Earth rotation
233    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
234      and based on a reference stratification. Tested within hs94.cs-32x32x5.
235    o seaice advection: add code for choosing between the default (2nd order
236      central differences) and multiDim advection schemes provided by
237      pkg/generic_advdiff
238    o seaice:
239      - removed all references to SEAICE_GRID.h fields from
240        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
241        (cubed-sphere configuration will change a little)
242      - grid computations in seaice_init are obsolete now.
243      - cleaned up code a little so that is easier to read (hopefully).
244      - added new (better?) discretizations of default advection and diffusion
245        (turn on with SEAICEuseFluxForm)
246      - replace 1 in 3d global fields by kSurface in growth.F
247      
248    checkpoint58a_post
249    o seaice:
250      - bug fix in advect.F
251    o shelfice:
252      - separate shelfice load anomaly from pload (breaks with time
253        dependent forcing), => introduce constant field shelficeLoadAnomaly.
254        Its default is 0., but it may be computed more cleverly from (unknown)
255        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
256        done offline. A good approximation of the pressure load anomaly is
257        necessary to avoid large initial adjustment processes underneath
258        deep-reaching shelfice.
259      - small fix in ISOMIP shelfice_thermodynamics
260      - add more sophisticated thermodynamics of Hellmer (1989), this is
261        now the default
262      - give a few constants more intuitive names
263    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
264      if bulk formulae are used in long integration (especially EmPmR). Turn
265      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
266      if balancePrintMean, the imbalance that is substracted is printed to
267      STDOUT.
268    o fix bug (typo) in obcs_apply_eta.F
269    o add a new package shelfice which enables us to model the circulation
270      underneath shelf-ice with draughts of hundreds of meters.
271     - works
272     - to do: + include improved thermodynamics
273              + check whether kSurfC (from model/inc/SURFACE.h) can be used
274                instead of new field kTopC
275              + can we use topoFile, Ro_surf and existing code in ini_depth.F
276                instead of new field R_shelfIce and new code in ini_depth.F
277                and ini_mask_etc.F?
278              + adjust vertical mixing schemes?
279    o seaice pkg:
280     - add a cpp-flag to include a simple formula for a salinity dependent
281       freezing point of sea water at the surface
282     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
283       meridional stresses are now different (and hopefully correct)
284    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
285       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
286       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
287    o pkg/diagnostics: add options and parameters for regional-statistics
288       diagnostics ; define regions by reading a region-mask from a file
289       (might add other options later)
290    o pkg/bulk_force:
291     - add option and parameters to use AIM surface-flux formulae.
292     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
293       others forcing fields (defined in PARM05, parameter file "data") are loaded
294       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
295     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
296     - use the right EXCH call for uwind,vwind (to work on CS-grid).
297     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
298       and parameters (note: calcWindStress replaces .NOT.readwindstress).
299     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
300    
301    checkpoint58
302    o add "--embed-source" option to genmake2 which, when the supporting
303      tools can be compiled (as determined by genmake2) will turn on the
304      embed_files package which then embeds the entire MITgcm source code
305      (*.[fFhc] + Makefile) used for the build within the executable
306      - requested by CNH but off by default
307      - adds a paltry <9MB to the mitgcmuv executable in most cases
308      - only writes the output when useEMBEDSRC in eedata is true
309    o clean up 3-dim. relaxation codes:
310      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
311      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
312      * Thanks to Tom Haine for testing!
313    
314    checkpoint57z_post
315    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
316      affects output (@ truncation level) of exp. plume_on_slope ; updated.
317    o fix the pickup behavior for obcs in combination with ptracers
318    o fix a bug in ptracers_external_fields_load
319    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
320      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
321    o transfered surface NH pressure to eta field (if exactConserv).
322    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
323         and update lab_sea output.txt file.
324    o completing 3-dim. relaxation code: additional term
325         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
326      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
327      * At compile time, in "EXF_OPTIONS.h" set
328          #define  ALLOW_CLIMTEMP_RELAXATION
329          #define  ALLOW_CLIMSALT_RELAXATION
330      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
331          tauThetaClimRelax3Dim = 15552000.0,
332          tauSaltClimRelax3Dim  = 15552000.0,
333      * 3 cases:
334          1) Use a constant-in-time 3-dim. field
335          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
336          3) Real-time relax. to time-evolving prescribed field
337    o Adding Laplacian-type smoothness constraint on
338      initial and boundary (forcing) controls (ic, bc)
339      * enable at compile-time via
340        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
341      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
342      * Absolute scale somewhat unclear so far
343      * no area weighting was included since no other cost term does so far
344    
345    checkpoint57y_post
346    First step for a NLFS adjoint
347    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
348    o new init. routines for calc_r_star, calc_surf_dr
349    o still need to deal with ini_masks_etc
350    o testreport seemed happy
351    checkpoint57y_pre
352    
353    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
354    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
355    o add new offset feature to offline pkg (plus minor cleanup)
356    o cfc fixes for final year of integration
357    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
358      be in GCHEM_OPTIONS).
359    
360    checkpoint57x_post
361    o fix testreport Pb in multiple test experiment.
362    o cleanup our namelist syntax in verification:
363      - make it more F95 standards compliant (some work still needed)
364      - allows the vast majority of our tests to work with gfortran
365    o Non-Hydrostatic:
366     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
367     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
368    o Allow to apply AB on T,S rather than on AB(gT,gS):
369     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
370     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
371       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
372     - need a "clever" read_pickup to restart from the other AB formulation
373    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
374    o remove some unused variables (reduces number of compiler warnings)
375    o adjoint
376      * Disable useVariableViscosity for adjoint for time being
377        (there are a number of extensive recomputations)
378      * Initialize certain variables needed for adjoint
379    
380    checkpoint57w_post
381    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
382                 fix the singleCpuIO RS version of MDSWRITEFIELD
383       and add a WARNING if using globalFiles=T with multi-processors.
384    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
385      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
386    o tracer advection scheme:
387      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
388       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
389       was not very convenient).
390      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
391       (further tests needed for the implicit DST & Flux-Limiter schemes).
392    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
393      and sRef for convenience, handy, when you want to initialize
394      ptracers in a large domain with a constant non-zero value. Also,
395      untangle ptracers_init.F a little.
396    
397    checkpoint57v_post
398    o change dome exp. to use variable viscosity in side-drag terms.
399    o remove all the files from the cfc_offline test since they are now
400      incorporated into tutorial_cfc_offline which has been producing
401      identical results for a few days of testing
402    o add new parameter: sideDragFactor to enable half-slip-side BC
403      and change side-drag S/R to use viscosity from mom_calc_visc
404      (can switch back by setting sideDragFactor=0.); affects results at
405      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
406       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
407    o vorticity & strain are now computed without masking, to account for
408      no-slip-side BC in variable viscosity calculation ; mask is applied
409      anyway later on, before computing advection/coriolis terms.
410    o modify exp4 to test new obcs support for reading from external files
411      and for passive tracers
412    o fix behavior of ptracers_monitor when monitor output is written to a
413      netcdf-file; still not independent of monitor.F (writes in the same
414      file).
415    o change default value of tRef (put a uniform, meaningful value for ocean
416      & atmos) and initialize sRef (was missing, as Martin mentioned).
417    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
418      to be proportional to enstrophy dissipation length.  Thus,
419       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
420      This is now consistent with Smagorinsky and with the manual.
421    
422    checkpoint57u_post
423    o OBCS and PTRACERS: add open boundary support for passive tracers
424      - either use homogenous (pseudo) v.Neumann conditions or prescribe
425        OB-values from file; this is not different from the way theta and salinity
426        are treated
427      - however, Orlanski-radiation conditions are not supported, and the model
428        will stop if you use pTracers and Orlanski at the same time.
429      - beefed up the rountine obcs_external_fields_load: now only those open
430        boundary values are overwritten with values from files for which there
431        are really files, otherwise the OB-fields remain untouched. This makes
432        it possible to use different OBs at different ends of the domain (as
433        with EXF)
434    o reduce number of exch calls in shap_filt (s2).
435    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
436      truncation level) 4/5 MLAdjust test results (11&12 digits match).
437    
438    checkpoint57t_post
439    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
440    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
441      same truncation, independent of the face number: affects affects several
442      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
443    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
444      note that biharmonic viscosity + no-slip was not tested in any experiment.
445    o fix bug in non-linear free-surf side-drag ; generate new output for
446      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
447    o make mnc honor the writeBinaryPrec flag for most kinds of output
448    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
449    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
450      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
451    o add brackets in multi-terms sum to get same truncation, independent of
452      the face number (manage to get exactly same value of gU,gV at the cs-edge)
453      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
454    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
455      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
456      a maximum grid-scale Reynolds number.  Also, changes all length calculations
457      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
458      Suggested values of viscosity parameters found in mom_calc_visc.
459      Many new viscosity diagnostics available.
460    
461    checkpoint57s_post
462    o Add clearing-house for viscosity calculations, mom_calc_visc and
463      correct numerous bugs in LeithD and Smagorinsky discretizations.  
464      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
465      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
466      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
467      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
468      The Strain-Tension form is now called with useStrainTensonVisc=.true.
469      ViscAhStrain and viscAhTension are now retired.
470    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
471    o In response to JMC's bug report, genmake2 now ignores any soft-links
472      that it finds in the *current* directory when searching for files.
473      Soft-links found in any other source directories will still work as
474      they did before.
475    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
476      a C routine to unlimit the stack size
477    o mnc-ify pkg/aim snapshot vars
478    o mnc-ify pkg/land as requested by Daniel
479    o various changes to mnc including:
480      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
481      - output can now be grouped so that all files within a group
482          change the ITER portion of their names in lock-step together
483      - can now read ("global") PER-FACE (in addition to PER-TILE) files
484          and works with both EXCH1 and EXCH2 (but needs more testing)
485      - writing works for all verification test cases w/ g77 on Linux
486    
487    checkpoint57r_post
488    o make MNC variable initialization happen earlier
489    o add diagnostics for (almost) each term of the momentum Eq.
490    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
491    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
492    o remove MINIMAL_TAVE_OUTPUT option ;
493      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
494    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
495      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
496    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
497    o add time-dependent SST, SSS control
498    o cost terms in ecco/ modularized (new cost_generic.F)
499    o cost_averages routines are modularized (new cost_averagesgeneric.F)
500    o new infrastructure for seaice model vs. obs misfits in seaice/
501      * driver from the_main_loop.F is seaice_cost_driver.F
502      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
503      * gradient check in Exp. 6a of natl_box_adjoint/
504    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
505      (see README file)
506    
507    checkpoint57q_post
508    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
509    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
510      - bug was reported by Jean-Michel and Ian Fenty
511    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
512      update exp. cpl_aim+ocn output.
513    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
514      Needed for high-res. runs with large global files
515      to be able to limit tapelev size
516    o Changed some tests for adjoint:
517      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
518      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
519      * global_ocean.90x40x15/ back to default 3-level checkpointing
520    o Modifications to enable scripted COMMON to MODULE conversion
521      * verification/OpenAD/code/ has necessary scripts and description;
522      * converts, compiles and runs successfully;
523    
524    checkpoint57p_post
525    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
526    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
527      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
528    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
529    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
530      (was already the case for dissipation with mom_vecinv,
531       and also the case for grad.PhiHyd when staggered-timeStep)
532      This will allow to put dissipation out-off the AB time-stepping.
533     Unfortunately, affects truncation error. Update output of exp. that "fails"
534      (cg2d matching number) and leave the others for later: front_relax(10),
535      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
536      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
537    
538    checkpoint57o_post
539    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
540      (2) its ready to be documented during the 20050801 DocFest
541    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
542      for ideal_2D_oce and lab_sea on linux_ia32_g77
543    o set to #undef CTRL_SET_OLD_MAXCVARS_30
544      in global1x1_tot/code_seaice_adj to access indices 32, 33
545      (worth another tag)
546    
547    checkpoint57n_post
548    o adding precip control xx_precip 32
549    o adding swflux control xx_swflux 33
550    o Replacing 10 forcing penalty cost routines by 1 generic.
551    o Implementing partitioning in time-mean and variable adjustment
552      for atmos. state.
553    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
554    o in natl_box_adjoint:
555      * updated exp 1 to 10
556        (but does not have time-mean vs. variable split results yet)
557    o updated global1x1/*_seaice_adj/
558      to incorporate latest changes
559    o enable useSingleCpuIO for mdsio vector routines
560      (applies in particular to tapelev I/O)
561    o removed inefficient K-loop in all active_file*control*.F
562    
563    checkpoint57m_post
564    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
565      and advect_cs (use EXCH-2 and standard cs-32 grid files).
566    o pkg/exch2: filling of face-corner halo regions is optional
567      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
568    
569    checkpoint57l_post
570     tag before updating tutorials (pre-release-2)
571    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
572       for output and interpolation of input fields onto model grid)
573    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
574       Affects results of exp. rotating_tank ; update output.txt.
575    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
576          and taking the square quantity and/or using a fraction-weight field.
577    o fix aim_diagnostics_init.F mate numbers.
578    o add mnc output capability to diagnostics/diagstat and update
579      our cvsignore files for the ACSII output generated
580    
581    checkpoint57k_post
582    o lab_sea now uses diagnostics package and provides a suite of
583      new EXF diagnostics output.
584    
585    checkpoint57j_post
586    o exf
587      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
588        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
589        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
590      * extended diagnostics output
591        - now includes all EXF variables
592        - hs, hl moved to common block
593        - separate S/R for diagnostics, called after ctrl vector is added
594        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
595        - EXFqnet contains true Qnet (i.e. includes qsw)
596      * updated verif. lab_sea, global_with_exf
597      * Rearranging hflux (exf_mapfields -> exf_getforcing)
598        to ensure that diagnostics sees a true EXFqnet
599    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
600    o diagnostics pkg: change pointers so that 1 diagnostic can be used
601      several times with different frequencies.
602    o mnc-ify the thsice package as requested by Daniel Enderton
603      - the monitor--MNC output needs work
604      - many attributes need to be added (most are currently blank)
605    o mnc-ify theaim_v23 package as requested by Daniel Enderton
606      - many attributes need to be added (most are currently blank)
607    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
608    o add Sadourny like discretization to the 4th.O vorticity advection scheme
609    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
610      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
611         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
612    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
613     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
614    
615    checkpoint57i_post
616    o Diagnostics package was changed: diagnostic allocation is now deactivated
617      by setting an empty file name in the namelist (used to be by setting 0 frequency)
618    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
619      add 1rst Order upwind vertical Shear.
620    o add a quick fix for A/B checkpointing in OFFLINE mode
621    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
622      end-run around the C/Fortran linking horror in eesup/src/timers.F
623    o added pkg/runclock: allows user to terminate run based on wall clock
624    o added non-hydrostatic scaling parameter: nh_am2
625    o pkg/my82: futile attempt to make results compiler-independent by adding
626      some "_d 0", etc. no effect.
627    o for mnc output, fill the 'T' coordinate var with myTime and create a
628      separate 'iter' variable for iteration count
629    o pkg/diagnostics:
630      add new capability: output of Global/Regional & per-level statistics ;
631      tested against monitor output (including land & thSIce) on various exp.
632    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
633    
634    checkpoint57h_done
635      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
636      data.diagnostics, data.gchem, data.ptracers) is done.
637    
638    o pkg/diagnostics: prepare for Global/Regional statistics.
639      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
640    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
641      and rename it: DIFFERENT_MULTIPLE
642    
643    checkpoint57h_post
644    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
645    o pkg/diagnostics: change output frequency, now in seconds (instead
646      of Nb of iterations). This requires to change data.diagnostics.
647    checkpoint57h_pre
648    
649    o in mnc, let the user create the output dir if both mnc_outdir_date
650      and mnc_outdir_num are false
651    o add fflags() to pkg/diagnostics which allows one to specify, on a
652      per-file basis, the file precision [default behavior is unchanged]
653    o added diagnostics to pkg/kpp, including computation of mixed layer
654      depth based on a temperature/density criterion
655    o updated verification/natl_box to test the new pkg/kpp diagnostics
656    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
657    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
658    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
659      not mnc -- this mistake was found by JMC and is now corrected
660    
661    checkpoint57g_post
662    o add Adams-Bashforth 3rd Order time stepping:
663      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
664      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
665    checkpoint57g_pre
666    
667    o make lambda[Theta,Salt]ClimRelax spatially varying
668      (default remains spatially uniform constant based on tau)
669    o added new control variables
670      * init. uVel, vVel, etanN
671      * lambda[Theta,Salt]ClimRelax
672    o separate masks used for ctrl_pack/unpack 'from write_grid' output
673      (suggested by G. Forget)
674    
675    checkpoint57f_post
676    o add parameter "baseTime" = model base time = time at iteration zero
677      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
678      account for baseTime shift
679    o move Coriolis arrays from PARAMS.h to GRID.h
680    checkpoint57f_pre
681    
682    o mnc-ifying the seaice package
683    o introduced an alternative length scale calculation for use in the limiting
684      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
685    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
686    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
687      as well as grad(vort3).  Made it compatible with both approximate form
688      for the cubed sphere and full form of these gradients.  Added flag
689      useFullLeith to select between approximate and full form.  
690    o add "d0" in getcon.F to reduce differences between compilers/platforms
691      update output.txt of exp. fizhi-gridalt-hs
692    o change port_rand funtion to allow to set the seed.
693    o fix obscure MNC bug involving conversion between reals and integers
694      - it caused no problems with certain (eg. gcc, ifc) compilers but the
695        new version is now more standards-compliant
696    o adjoint-related modifications
697      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
698      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
699      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
700    
701    checkpoint57e_post
702    o Adding eddy stress controls a la Ferreira et al.
703    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
704    
705    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
706      update output.txt of exp. fizhi-gridalt-hs
707    o add more "Z" dimensions and associated coordinate vars to MNC
708    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
709    o parameter calendarDumps: when set, approximate months (30-31 days) and years
710      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
711      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
712      months and years.  Requires pkg/cal.
713    o diagnostics: add pickup functionality
714      - off by default for backwards compatibility
715      - current version only uses MDSIO -- MNC will be added
716    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
717    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
718    
719    checkpoint57d_post
720    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
721    o modify verification/ideal_2D_oce so that it tests the creation of mnc
722      output from the diagnostics package
723    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
724    o make genmake2 more portable by using ".$FS" instead of ".f" for more
725      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
726    o add coordinate variables to the MNC output from the diagnostics package
727    o change MNC-flags default value: true when useMNC=TRUE
728    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
729      the ability (off by default) to read the grid information using MNC
730    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
731    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
732    o do snap-shot diagnostics at the middle of the time-interval (instead of
733      at the end).
734    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
735      new test for AIM with thSIce + slab-ocean
736    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
737    o move state variable diagnostics to the beginning of the time step ;
738      (note: still needs some work specially for snap-shot diagnostics)
739      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
740    
741    checkpoint57c_post
742    o Change testing option (-ieee) to get closer agreement between g77 & ifort
743    o generate new output.txt files on faulks with g77 & the new -ieee option
744    checkpoint57c_pre
745    
746    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
747      update output.txt of exp. global_ocean.90x40x15
748    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
749      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
750    o add saltFlux(+File) forcing capability with periodicExternalForcing
751    o allow to use pkg diagnostics for GM-Redi & ThSIce output
752    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
753    o improvements for the MNC output from DIAGNOSTICS:
754      - correct handling of the unlimitied dimension
755      - all dims now have associated coordinate variables
756      - variables located at U, V, and Corner ("Z") points are now written
757        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
758        *all* data points are output
759    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
760    o added pkg/seaice/seaice_monitor.F
761    o mdsio_readfield.F can now read files visible only to master MPI process.
762    o pkg/seaice: some test code for ice-modified ocean stress
763    o exf_getffields interpolation defaults to bilinear for all scalar forcing
764      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
765      spurious negative numbers for precipitation and humidity.  Will cause
766      some small numerical differences for integrations using pkg/exf/exf_interp.F.
767    o pkg/ctrl/
768      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
769        May be enabled via doPackDiag
770      *  introduce z-scaling of
771         + gradient (doZscalePack) and
772         + control (doZscaleUnpack)
773    o pkg/mdsio/
774      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
775      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
776    
777    checkpoint57b_post
778    o simplify options in diagnostics_fill arguments (remove weird combinations)
779    o fix MNC coordinate variables so that they now contain per-face index
780      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
781      general, EXCH2 grids are only aligned to a "local" coordinate system
782    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
783    o Implement instantaneous output within pkg diagnostics:
784      setting a negative frequency in data.diagnostics produces
785     "snap-shot" output (as opposed to time-average if freq > 0)
786    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
787      NOTE: change ptracer diagnostics name: use 2 characters to work with
788            more than 9 tracers. Add also diagnostics of advect & diffus flux.
789    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
790      becomes the coordinate variable for the 'T' dimension
791    o add CF-style coordinate variables to MNC
792      - just a first cut:  numbers are meaningless on the cubesphere and
793        missing along the T axis but otherwise it works!
794    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
795    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
796    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
797      this is based directly on what the model compute, so that the content of
798      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
799    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
800    o clean up build options files for SunOS, in particular
801      - remove -traditional from xmakedepend
802      - change -xarch=v9 to -xarch=native for f77
803      - restore use of make (not gmake)
804      - add CC=gcc if using g77
805    o changes per discussion of AM, JMC, & EH3 today:
806      - move redundant "grid" variables out of "state" -- in preparation of
807        creating proper CF-style coordinate variables and in recognition
808        that any/all grid variables can be easily copied (eg. w/NCO) from
809        the grid files into any of the other NetCDF files
810      - *always* output grid variables with MDSIO (this will eventually be
811        changed)
812      - output MNC grid file if useMNC is true
813    o every instance of _END_MASTER() has been found and replaced with
814      _END_MASTER( myThid ) in order to satisfy certain picky Sun
815      preprocessors
816    o re-arrange diagnostics pkg initialisation:
817     - allow each package to extend the available diagnostics list
818     - add some checking and fix small problems (multi-threaded, ...)
819     - new S/R diagnostics_fill (replace fill_diagnostics):
820       look through the short list of active diag. (instead of the long list)
821       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
822    
823    checkpoint57a_post
824    o this set of changes restores TAMC compatibility
825      tested for global_ocean.90x40x15 adjoint on trough
826      (what a pain)
827    
828    checkpoint57a_pre
829    o some modifs in tools/build_options for sunos
830    o call ctrl_pack for ctrl at end for optimcycle=0
831    
832    checkpoint57
833    o add horizontal bi-harmonic viscosity for vertical velocity
834      - new parameter viscA4W (defaults to viscA4)
835      - affects only non-hydrostatic code
836      - to be done: no-slip lateral boundary conditions
837    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
838    o implement Implicit Vertical advection for pTracers
839    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
840      (implemented also for implicit vertical diffusion & advection)
841    o OBCS: extend application of tracer open boundary conditions
842      to a strip beyond the boundary of width Olx/Oly
843    o add call monitor to TAF set of required calls (flow directives)
844      and include in natl_box_adjoint
845    o untangle a few ifdefs related to cost, ctrl, autodiff
846      untangel a few ALLOW_ECCO_OPTIMIZATION
847    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
848      (theta2, salt2 in ecco_cost_weights)
849    
850    checkpoint56c_post
851    o OBCS as control variables
852      - update ctrl_ad_diff.list, obcs_ad_diff.list
853      - remove balance of obcs controls from default
854      - fix index bug nobcs in ctrl_init
855      - fix dummy fields filen in ctrl_pack
856      - add dummy weights for obcs
857    o lsopt: comment out fort.94 output
858    o optim:
859      - remove unnecessary header files
860      - adjusted namelists
861      - add xerbla.F to Makefile
862    o exf:
863      - multiple modifications of exf_check_range
864      - unit change in exf_init_runoff from [m/year] to [m/s]
865    o mdsio:
866      - i/o-vector change debugLevel from debLevA to debLevB
867    
868    checkpoint56b_post
869    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
870      is called from DO_THE_MODEL_IO
871      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
872      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
873      - clean up PTRACERS_WRITE_TIMEAVE a little
874    o add another verification experiment that tests both the cfc-pkg and
875      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
876      reactive tendencies treated inline with regular timestepping
877    o testreport previously did a lousy job of comparing small numbers, so
878      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
879      implemented in the little c-progam tmp_cmpnum.c which is embedded in
880      testreport.
881    o ptracers_monitor: bug fix for MPI
882    
883    checkpoint56a_post
884    o GCHEM: finish reorganizating the package
885      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
886        (introduces another 3D-array for each passive tracer, but only if
887        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
888        gchemTendency is not needed because the timestep is done separately)
889      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
890      - GCHEM is now---more or less cleanly---separate from PTRACERS
891      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
892        so clear to me how that should be done in a general way.
893    o CFC: improve formatting of output in CFC_ATMOS
894    o PTRACERS:
895      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
896        that ALL experiments with ptracers enable can be checked. This makes
897        GCHEM_MONITOR obsolete.
898      - include a runtime parameter PTRACERS_monitorFreq that defaults to
899        monitorFreq
900      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
901    o add PTRACERS (PTR0[1-5]) to testreport output
902    o exf_check_range:
903      * default changed to .TRUE.
904      * will check values for niter0 if debLevA, every timestep if debLevB
905      * STOP in exf_check_range if 'out of range'
906      * range chosen generous to allow for potential extema
907      TBD: a version with stricter range
908           permitted range would be runtime parameters
909    o GMredi:
910      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
911      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
912      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
913    o GCHEM:
914      - move call to GCHEM_FORCING_SEP, so that it is now called before
915        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
916      - introduced a useGCHEM runtime flag and applied it everywhere.
917      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
918        this flag is now only visible within GCHEM-pkg routines.
919      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
920        be replaced by a 3D array that is computed before thermodynamics; for
921        this, the tracer ID iTracer had to be included into the parameter list
922        of ptracers_forcing
923      - set up forward_step to call gchem_forcing, that will replace
924        gchem_forcing_int in ptracers_forcing
925      - cleaning up
926    o small cleaning of exch2: remove files that are also in eesupp/src
927    
928    checkpoint56
929    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
930    o mnc: cleanup "full" files--fixes out-of-memory problem
931    o ECCO-GODAE
932      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
933      * fully merged and updated from SIO code
934        windstress sign change affects
935        - exf_inscal_[u/v]stress
936        - sign of xx_tau[u/v] adjustments
937        - signs in cost_scat
938      * ctrl_get_gen: avoid update of tau[u/v] for first few days
939      * natl_box_adjoint updated and compressed
940      * 2-level checkpoint switch added
941        (tested in EXP. 1 of natl_box_adjoint)
942      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
943    o SVD
944      * first complete, non-hacked version for SVD calculations
945      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
946        performed via direct access files admtlm_vector.it????
947        (via ctrl_[un]pack)
948      * optimcycle is used for ARPACK iteration counter
949        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
950      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
951        and add linear transforms where necessary
952      * controls are initial/final SST, SSS (can be extended; need to check
953        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
954    o mdsio: filename info to both stderr, stdout
955    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
956      from sign change
957    
958    checkpoint55j_post
959    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
960      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
961    o add consistent build directories and .cvsignore files to verification
962    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
963    o make all subroutines 30 or less characters in length for certain older
964      compilers to work (a thorough search only turns up two routines in
965      pkg/ptracers)
966    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
967      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
968    
969    checkpoint55i_post
970    o change arrays for total vertical diffusivity (2.D if explicit,
971      3.D if implicit) ; each ptracer uses its own background value.
972    o added mnc/NetCDF output capability to ocn_compon_interf
973      - added bits to verification/cpl_aim+ocn so that it can run on
974        ITRDA and other clusters without the mpirun "-wd" option
975    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
976      configuration
977    o give MNC the ability to create additional files rather than
978      exceeding a specified file size limit "MNC_MAX_FILESIZE"
979      - the default is just less than 2GB which is a practical limit
980        on many systems
981    o Compute the non-local term using either KPP vertical diffusivity (=default)
982       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
983    
984    checkpoint55h_post
985    o add verification test "vermix"
986    o remove all the *_ioinc flags and replace with the single global
987      outputTypesInclusive flag
988    o allow to set a vertical profile of vertical diffusivity for T & S
989    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
990    o useMNC moved from data.mnc to data.pkg
991    
992    checkpoint55g_post
993    o Renaming carbon AD experiments to comply with testreport conventions
994    o Updating adjoint of Held-Suarez hs94.1x64x5
995    o Fixing directives for non-ECCO forward_step, after ECCO directives
996      have been fixed to avoid recomp. of do_oceanic_phys
997      Works well for global_ocean.90x40x15,
998      but recomp. issue remains for carbon
999    o Updating adjoint output for natl_box_adjoint after
1000      pkg/ecco has been modified (see taga c55d_post)
1001    
1002    checkpoint55f_post
1003    o rename to timeave_init_fixed
1004    
1005    checkpoint55e_post
1006    o some delicate re-shuffle of store directives to avoid one
1007      extra call of do_oceanic_physics
1008      affects ecco_the_main_loop.F, do_oceanic_physics.F
1009      checkpoint_lev1_directives.h
1010    o NB: this may break global_ocean adjoint temporarily,
1011      but it is clear how to fix it. Will do later, need this now.
1012    
1013    checkpoint55d_post
1014    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1015    o ecco_cost_weights is modified to 1x1 runs
1016    o modifs to allow observations to be read in as
1017      single file or yearly files
1018    o enable to read exf forcing fields as either
1019      single file or yearly files (flag useExfYearlyFields)
1020    checkpoint55d_pre
1021    
1022    o switch between 2-level and 3-level checkpointing
1023    o add ability of MNC to write local and "partial" (eg. 2D slices where
1024      the full 3D field is never actually stored) arrays to NetCDF files
1025      with the correct (that is, the complete multi-dimensional) set of
1026      array indicies
1027      - used in mom_vecinv() to write the diagFreq output
1028      - tested (demonstrated) in verification/aim.5l_cs
1029    o further mnc-ification
1030      - add verification/lab_sea to the list with mnc setups
1031      - fix undefined mnc v-names in cd_code
1032      - add kpp to mnc output (both snapshot and timeave)
1033    o non-hydrostatic code
1034      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1035        in calc_gw.F
1036      - defaults to viscAh
1037      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1038        friction or Leith) in non-hydrostatic mode, as long as there is
1039        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1040    o pkg/cost
1041      extend simple cost functions to treat time mean quantities
1042      (T,U,V) via cost_accumulate_state from cost_tile
1043    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1044        be 2 times larger than the minimum size the advection scheme requires.
1045        now get a perfect conservation of salt in advect_cs test-exp (updated)
1046    o GGL90 (Gaspar's TKE mixed layer)
1047      - add horizontal diffusion of TKE, requires exchanges in
1048        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1049        default. In OPA there is no horizontal diffusion of TKE but the
1050        mixing coefficients are computed from a horizontal average of TKE of
1051        6 points or so. I think that diffusion has a little more physical
1052        justification.
1053      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1054        was in vain)
1055      - mask tke-variable in ggl90_init
1056    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1057    o fix biharmonic diffusion on CS-grid.
1058    o more obcs stuff
1059      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1060        for reading boundary values. This routine is called from
1061        obcs_prescribe_read
1062      - updated obcs_check
1063      - changed sponge layer relaxation parameter units for days to seconds
1064      - turned off sponge layer by default
1065      - changed argument list of OBCS_CALC to myTime+deltaTclock
1066      - fixed about 35 bugs in obcs_external_fields_load
1067    
1068    checkpoint55c_post
1069    o obcs stuff
1070      - new runtime flags useOBCSprescribe, useOBCSbalance
1071      - re-arranged obcs_calc
1072      - moved exf_getobcs to obcs_prescibe_read
1073        obcs_prescibe_read is called after ORLANSKI stuff
1074        and independent of it (executable can contain all).
1075      - updated obcs_check
1076      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1077        These may be necessary only if tangential velocities are
1078        prescribed at OB, not sure, needs testing.
1079    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1080      which simplifies the calls and passes the ifc check-bounds test
1081    
1082    checkpoint55b_post
1083    o add a 2D scalar, Z location, exchange_2 routine.
1084    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1085      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1086      affects advect_cs results (for the wrong reason): update output.txt
1087    o use a more standard discretization for biharmonic viscosity ;
1088     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1089      affects results of dome set-up: update output.txt
1090    o fix gad_advection.F (CubedSphere part), back to version 1.23
1091    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1092    
1093    checkpoint55a_post
1094    o merged code to
1095      * prescribe/read time-dependent open boundaries
1096        (works in conjunction with exf, cal)
1097      * sponge layer code for open boundaries
1098      * each boundary N/S/E/W now has its own CPP option
1099        (healthy for the adjoint)
1100    
1101    checkpoint55
1102    o up-to-date adjoint of previous breaks
1103      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1104      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1105      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1106      - carbon: * remove tr1-related adjoint verification
1107                * add ptracer as control variable
1108    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1109      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1110    
1111    checkpoint54f_post
1112    o in verification/carbin/ remove experiment related to
1113      ALLOW_PASSIVE_TRACER (array tr1 etc)
1114      code_ad/ input_ad/ results_ad
1115    
1116    o add two new packages
1117      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1118        + subject to optimization (memory)
1119      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1120        + subject to reordering (many GOTOs in the original code)
1121        + so far opps is called for every (i,j) point, and then operates in
1122          the vertical; one may want to reorder the scheme in order operate in
1123          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1124          fields)
1125    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1126      - all verification tests compile and run with linux_ia32_g77
1127      - defaults are compatible with current input files--nothing
1128        should change if you were not previously using MNC
1129      - MNC output has been added in numerous places (eg. timeave)
1130        but there are still a few writes not yet do-able with MNC
1131        (this is in progress)
1132      - flags now allow for either/or/both use of MDSIO and MNC and
1133        documentation will soon follow
1134      - numerous small formatting cleanups for ProTeX
1135    o add version info (via BUILD_INFO.h) to MNC and stdout
1136    
1137    checkpoint54e_post
1138    o add two new packages
1139      - pp81 (Packanowski and Philander, 1981), Richardson number and
1140        stratification dependent mixing
1141      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1142      - these scheme operate in a similar manner as KPP (without ghat, of
1143        course), however there is only one diffusivity that is used for both
1144        temperature and salinity (and passive tracers)ç
1145    o add offline package
1146    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1147      provided by Stephanie Dutkiewicz
1148    o genmake2: add ability to search for C compilers and cleanup test output
1149      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1150    
1151    checkpoint54d_post
1152    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1153    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1154      leading to additional shift by 5 days each year of integration
1155       (i.e. leading to considerable offset over the years)
1156    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1157    o start with no AB and no initial filtering (staggerTimeStep):
1158      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1159    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1160      (external loading & cpl import/export stay in forward_step.F)
1161    o update coupling interface to work with new staggerTimeStep
1162    o change MDSIO ptracers_pickup.
1163    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1164    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1165    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1166    
1167    checkpoint54c_post
1168    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1169      this affects (truncation error) output.txt of test-exp:
1170       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1171    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1172    o change Qnet to always be the net heat flux, (+upward).
1173      affects (truncation error) output of natl_box exp.: updated
1174    o define the max number of passive tracers in PTRACERS_SIZE.h
1175    o start to test mnc routinely in exp0
1176    o add sea-ice loading (sIceLoad) as a new forcing field.
1177    
1178    checkpoint54b_post
1179    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1180       impressive on Altix and Opteron systems)
1181    o diagnostics can now write NetCDF files through the mnc package
1182    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1183    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1184    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1185      affects (truncation error) output of lab_sea & natl_box exp.: updated
1186    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1187    
1188    checkpoint54a_post
1189    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1190    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1191    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1192    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1193      + internal_wave (shift in writing cg2d_ini_res)
1194    checkpoint54a_pre
1195    
1196    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1197      - modified verification/lab_sea and natl_box_adjoint accordingly
1198    
1199    checkpoint54
1200    checkpoint53g_post
1201    o prepare splitting of thermodynamics: store convect.counter in common block
1202    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1203      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1204    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1205    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1206    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1207    o restore adjointability
1208    
1209    checkpoint53f_post
1210    o modifications that affect AIM experiment results (update output.txt):
1211      - no advection of S at top interface Nr (pkg/generic_advdiff)
1212      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1213    o AIM pkg:
1214      - include stability function into surf.Flux derivative relative to Tsurf
1215      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1216    
1217    checkpoint53e_post
1218    o merged cylindrical coord configuration
1219    o added rotating_tank experiment
1220    checkpoint53e_pre
1221    
1222    checkpoint53d_post
1223    o faulks upgraded: re-generate output.txt that have changed:
1224       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1225    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1226    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1227    o added Sadourny discretization of Coriolis
1228      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1229      - re-enabled use of omega3 (useAbsVorticity)
1230    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1231      vector-invariant equations
1232      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1233    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1234      hopefully without new bugs
1235      - still to do: biharmonic friction for non-hydrostatic w
1236    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1237    o regenerated output for global_ocean_ebm (using -ieee)
1238    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1239      of mom_common/
1240      - simple re-arrangement of instructions within computing loop
1241    checkpoint53d_pre
1242    
1243    checkpoint53c_post
1244    o new version of coupler for AIM+thSIce and Ocean models
1245     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1246     - land: change Evaporation of snow
1247     - aim with thSIce: fix bug in snow-precip.
1248    o changes to calc_gw.F
1249     - bug fix for w^2 term near the bottom boundary
1250     - (hopefully) improve the lateral slip boundary condtions for use with
1251        partial/looped cells
1252      - because the bug fix changes two verification experiments anyway (exp5
1253        and plume on slope), change the lateral boundary condition from half slip
1254        to the value of no_slip_sides
1255    o ebm package wasnt quite up to the parallel task. Fixed that.
1256    o Adjoint of EBM package + verification
1257      * TLM OK
1258      * ADM not sufficient accuracy yet (needs further testing)
1259    
1260    checkpoint53b_post
1261    o Commiting new energy balance model to repository
1262      * package is pkg/ebm
1263      * verif. is verification/global_ocean_ebm
1264      * references are in ebm_driver.F
1265    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1266    C        Global thermohaline circulation. Part I:
1267    C        Sensitivity to atmospheric moisture transport.
1268    C        J. Climate 12(1), 71-82
1269    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1270    C        Global thermohaline circulation. Part II:
1271    C        Sensitivity with interactive transport.
1272    C        J. Climate 12(1), 83-91
1273    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1274    C        Destabilization of the thermohaline circulation
1275    C        by atmospheric eddy transports.
1276    C        J. Climate 7(12), 1870-1882
1277    o Will need long integration testing.
1278    checkpoint53b_pre
1279    
1280    o created pkg/mom_common in preparation for variable viscosity code
1281    o renamed and split ini_mnc_io
1282    o pkg/land: only liquid water can diffuse or run-off
1283    o AIM using land: soil wetness availability account for snow
1284    o added printMapIncludesZeros to EEPARMS namelist
1285    
1286    checkpoint53a_post
1287    o restore TAMC compatiility for exf_constants.h
1288      (no usage of _d in .h)
1289    o Additional storing in KPP in an attempt to fix
1290      TAMC problem with adjoint of KPP code.
1291      (no success...)
1292      Identical code works fine with TAF.
1293    o Fixed verification/natl_box_adjoint experiments.
1294      Initial conditions for Experiments 4 and 5 are now
1295      set to "SEAICE_initialHEFF=0", which is more reasonable,
1296      and hence gives results closer to that of Experiment 2.
1297      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1298    
1299    checkpoint53
1300    o stable checkpoint with up to date adjoint
1301      TLM tests only run for 1st grdchk at the moment. Its unclear if
1302      this is a code problem or a problem with resetting code for g_
1303      variables that is being autogenerated wrong.
1304      Otherwise:
1305       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1306       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1307         are both still in chaos following their security messes.
1308    
1309    checkpoint52n_post
1310    o various build (mostly genmake2) changes including:
1311      - ability to build/run more easily within Cygwin and MacOS X
1312      - more complicated Makefiles with a stronger dependence on Gnu Make
1313    o pkg/seaice modifications
1314      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1315        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1316        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1317      - changed proxy for geostrophic velocity and updated
1318        verification/lab_sea/results/* accordingly
1319      - removed ADI dynamic solver from pkg/seaice
1320      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1321        they caused a segmentation fault under certain circumstances
1322      - removed unused field WATR
1323    o bug fix in exf-package:
1324      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1325         now reflect that.
1326    o small fixes in the cal-package:
1327      - set reference date to first of January for the 'model'-calendar
1328      - failing of cal_CheckDate in cal_FullDate now actually results in a
1329        warning
1330    o small modifications in exf-package to increase flexibility:
1331      - change climtempfreeze from a constant to a runtime parameter that
1332        is specified in data.exf_clim (default = -1.9)
1333      - introduce runtime parameter windstressmax (default = 2.0) that is
1334        specified in data.exf
1335    o fix in pkg/thsice:
1336      - update Evap (Tsf changes) to be consistent with Latent heat flux
1337      - maintain snow precipitation unchanged (even if Tsf >=0).
1338     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1339    
1340    checkpoint52m_post
1341    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1342      this does not change any of the results, because myIter=0 in swfrac always
1343      lead to jwtype=2 (the default anyway), but the call makes little sense
1344      as a default
1345    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1346    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1347      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1348    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1349    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1350    o extending useSingleCpuIO option to work with new exch2 I/O format
1351      - old-style, missing-tile I/O is still accessible by defining CPP
1352        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1353    o monitor package can write to NetCDF files and/or STDOUT
1354    o fix re-definition bug in MNC_GRID_INIT_ALL()
1355    o doc/api_reference added
1356      - a framework for building an API Reference Manual using all
1357        the "protex" comments embedded in the code
1358      - see pkg/generic_advdiff, pkg/mnc for examples
1359    o MNC:
1360      - make myThid the last argument for all subroutines
1361      - new default for the grid files: NO halos
1362      - add useMNC and other run-time flags
1363      - separate per-file-group handling of the unlimited dimension
1364      - early initialization of MNC w/ flags read at the eeboot stage
1365        and lookup tables set in initialize_fixed
1366      - write all MNC output to a freshly-created directory
1367    o thermodynamics sea-ice (thsice) is now tested with testreport.
1368    o test exp. advect_cs: use the standard cs32 grid ; update output.
1369    o Added functionality to grdchk:
1370      pick global i,j,k position (or nearest wet) where to perform check.
1371    
1372    checkpoint52l_post
1373    o new land formulation:
1374      a) use ground enthalpy as prognostic variable to ensure exact
1375         energy conservation.
1376      b) account for water temperature and for latent heat of freezing
1377         in all processes (rain, run-off, ground storage)
1378      c) compute surface and ground temperature implicitly.
1379    o aim_v23 modification for new land model:
1380      a) Treat separately land / ocean / sea-ice surface fluxes
1381         to allow implicit computation of land & sea-ice surface temp.
1382      b) add snow precipitation.
1383    checkpoint52l_pre
1384    
1385    o fix problem (when 1 tile is empty) in min/max monitor.
1386    o fix bug in timeAve (u,vZetatave in common block)
1387    o no restoring terms under ice for pkg/seaice
1388    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1389    o bug fix for pkg/seaice pickups
1390    o change MNC call locations and add coordinate attributes
1391    o mask vorticity at the corner ; affects global_ocean.cs output
1392    o fix ini_curvilinear_grid ; test CS experiments with mpi
1393    o aim.5l_cs: modify sea-ice fraction input file ; update output
1394    o exf: Adding simple range check routine for exf fields after read
1395    
1396    checkpoint52k_post
1397    o removed top-level directory "diags"
1398      - we migrated these functions to pkg/timeave a long time ago
1399    o fixed bug introduced in pkg/monitor
1400    o accuracy ctrlprec = 32 insuffient for gradient checks using
1401      averaged fields (I/O via cost_averages)
1402      -> use ctrl.h in active_file*.F to control I/O precision.
1403    o paramter list of CALL ADTHE_MAIN_LOOP
1404    o added initial do_the_model_io to ecco
1405    o set all ...Freq to zero after cost_final
1406      taveFreq, dumpFreq, pChkptFreq
1407    o MAIN and ECCO differentiability restored
1408    
1409    checkpoint52j_post
1410    o fix nchklev in tamc.h for global_ocean...
1411    o Bringing flow and store directives up-to-date
1412    o Really weird thing!
1413      call do_the_model_io from the_main_loop with parameters
1414      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1415      TAF places a faulty re-call of initialise_varia
1416      after cost_final call which should not be there!
1417    checkpoint52j_pre
1418    
1419    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1420      error messages
1421    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1422    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1423      debug output
1424    o modfied mdsio_writefield.F to handle non-global files under exch2
1425    o update AIM Cubed-Sphere exp (aim.5l_cs):
1426      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1427    o update AIM Equatorial Channel exp:
1428      use standard aim_v23 pkg and change the SST fields to be more realistic.
1429    o globalFile now works with exch2
1430    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1431      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1432    o limit timeave output for hi-res integrations
1433    
1434    checkpoint52i_post
1435    o removed CPP_EEOPTIONS.h from verification/*/code
1436    o updated the tiling for global_ocean_pressure
1437    checkpoint52i_pre
1438    
1439    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1440      the old pkg/aim).
1441    
1442    checkpoint52h_pre
1443    o shortened offending lines in exch2_send_rx?.template
1444    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1445    o genmake2: add build & execute test for NetCDF code
1446    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1447      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1448    o added useSingleCPUIO flag to monitor.F and mon_out.F
1449    o added temporary hack for sea-ice dynamics on the cube:
1450      metric terms are ignored and it is assumed that
1451      there is no sea-ice on cube faces 1, 2, 4, and 5.
1452    
1453    checkpoint52f_post
1454    o added exch2 cube routines to pkg/exch2
1455    o modified hs94.cs-32x32x5 to use it
1456    o added new grid files to hs94.cs-32x32x5
1457    checkpoint52f_pre
1458    
1459    checkpoint52e_post
1460    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1461      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1462    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1463      to work with implicit vertical advection and AB ;
1464    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1465    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1466     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1467    checkpoint52e_pre
1468    
1469    o fix bug in impldiff when Nr=1 or Nr=2.
1470    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1471    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1472    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1473      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1474    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1475    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1476    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1477    
1478    checkpoint52d_post
1479    o re-tiled many expts to allow comparison in multi-processor mode
1480      - updated output accordingly
1481      - changed hs94.128x64x5 to use intial T from file rather than use the
1482        random number generator
1483    o add infrastructure in model routines for fizhi and gridalt packages
1484    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1485    o changes to permit hi-res, cubed-sphere, configuration
1486      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1487      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1488      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1489        of surface winds for the cube
1490      (A verification experiment, based on global_ocean.cs32x15, but with
1491       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1492       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1493       complete with example surface forcing files and matlab scripts to look
1494       at the output and compare it with that of global_ocean.cs32x15.)
1495    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1496       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1497       to conform to the common rule.
1498    o check-in the first version of the coupler + interfaces for multi-components
1499       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1500       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1501       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1502       - ocean and atmos. share the same horizontal grid (no interpolation).
1503       - exchanges between component and coupler is done in forward_step
1504    o new verification experiment, cpl_aim+ocn:
1505       coupled ocean - AIM atmosphere on cs32 grid.
1506    
1507    checkpoint52d_pre
1508    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1509    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1510    
1511    checkpoint52c_post
1512    o Fixing OPTIONS files for use of exf:
1513      - ALLOW_ECCO not needed
1514      - ECCO_CPPOPTIONS.h should not be included from
1515        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1516        as has been the case in the past
1517      - All cal/exf related options are currently set in
1518        single header file. Should remain so until we
1519        agree on a consistent new policy.
1520    o Removed all CPP options for cal package.
1521      cal has no more CPP options.
1522    o modified STOREs in GAD_ADVECTION
1523    o corrected key comp. for passkey
1524    
1525    checkpoint52b_post
1526    o new version: "thsice" of thermodynamic sea-ice pkg:
1527     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1528     - modify fluxes but do not change theta directly;
1529     - light cleaning of bulk_force pkg (still needed with thsice).
1530     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1531       + output_thsice.txt to test thsice & bulk_force pkgs.
1532    o put back grid & coriolis monitor output.
1533    checkpoint52b_pre
1534    
1535    o call "do_the_model_io" at the beginning (=> dump initial state)
1536    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1537    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1538      (need info on NUMBER_OF_PTRACERS)
1539    o missing PTRACERS headers in some routines
1540    o default tamc.h in pkg/autodiff supposed to crash
1541      to ensure proper customization
1542    
1543    checkpoint52a_post
1544    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1545      - moved surfaceTendencyTice from pkg/seaice to main code
1546      - subroutine FREEZE_SURFACE now limits only surface temperature
1547        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1548        => new output.txt for global_ocean.cs32x15 & global_with_exf
1549      - keep the old version of FREEZE for backward compatibility;
1550        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1551      - corresponding modifs for TAF directives
1552    o added surface flux output variables to TIMEAVE_STATVARS
1553    o time-averaged output for pkg/ptracers
1554    o fix problem with ECCO-related divided adjoint
1555      snapshot file was missing some ad-variables,
1556      but no warning issued by TAF
1557    
1558    checkpoint52a_pre
1559    o some bug fixes for #undef REAL4_IS_SLOW
1560    
1561    checkpoint52 = ecco_c52_e35
1562    o after testing adjoints of checkpoint51u_post
1563    
1564    checkpoint51u_post
1565    o this is the post-merge tag of the ecco-branch
1566      (needs another clean checkout and re-testing)
1567    o various natl_box_adjoint configs and results
1568      but no input fields
1569    o obcs adjoint not yet merged!
1570    o adding ECCO global 1x1 and 2x2 degree configs
1571    o updated/extended some store directives for seaice
1572    o pkg/ecco now containes ecco-specific part of cost function
1573    o top level routines the_main_loop, forward_step
1574      supersede those in model/src/
1575      previous input data.cost now in data.ecco
1576      (new namelist ecco_cost_nml)
1577    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1578    
1579    checkpoint51t_post
1580    o this is the pre-merge tag of the ecco-branch
1581    
1582    checkpoint51s_post
1583    o cleanup: removed various obsolete #define-s
1584    o pkg/grdchk
1585      - renamed 'ph-grd 3' to 'grad-res'
1586      - merged from ecco-branch
1587        (remaining bug fixes for obcs gradient checks)
1588      - additional high-precision output for testreport
1589        (grep for 'precision_grdchk_result')
1590    
1591    checkpoint51r_post
1592    o cleaned up or removed CPP_OPTIONS.h files
1593    o updated results for some of the tests to reflect the new
1594      optfiles (-ieee: -O0 instead of -O3)
1595    
1596    checkpoint51q_post
1597    o cd_code:
1598      - moved cd_scheme.F -> cd_code_scheme.F
1599      - separate read_checkpoint from cd_code_ini_vars.F
1600      - separated cd_code part from write_checkpoint
1601      - updated AD_SOURCE, generated .flow
1602      - added CD_CODE_VARS.h to the_main_loop
1603      - Moving cd_code specific store dir.s to pkg/cd_code
1604    o ctrl package totally restructured
1605      - pack/unpack now optional and decoupled from
1606        xx_/adxx_ I/O
1607      - ctrl_pack/unpack cleaned
1608        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1609      - confined inclusion of AD_CONFIG.h to where necessary.
1610    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1611    
1612    checkpoint51p_post
1613    o create initial cd_code package
1614      - WARNING: the initialization of fields within packages
1615        is broken because INI_FIELDS (where READ_CHECKPOINT is
1616        called) is called *before* PACKAGES_INIT_VARIABLES.
1617        This seems to be backwards since
1618        1) its important to initially zero the entire field including
1619           the "halo" region
1620        2) zeroing needs to be done *before* reading pickup info
1621           and the pickup call might or might not happen in any
1622           particular run
1623      - this needs an overhaul for R2
1624    o cleanup verification/*/code/GMREDI_OPTIONS.h
1625    o cleanup testreport
1626    
1627    checkpoint51o_post
1628    o bringing AD-related verif's up to date with genmake2
1629      - carbon/
1630      - global_ocean.90x40x15/
1631      - hs.94.1x64x5/
1632      - (front_relax/ )
1633    o (more) consistent directory structure for AD-related verif.'s
1634    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1635    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1636    o bug fix in find_alpha.F for MDJWF:
1637      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1638        change rho -> rho-rhoConst
1639      - replace call find_rho to find_rhonum
1640    o initialisation of rFlx extended to full array (required by TAF)
1641      and shifted to thermodynamics
1642    o removed PTRACERS.h in ptracers routine
1643    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1644    o Correcting initialisations for fVerU, fVerV.
1645    o helping TAF to recognize dependency on kUp for
1646      fVerU, fVerV
1647    o Replacing delZ by delR in pkg/ctrl/
1648    checkpoint51o_pre
1649    
1650    o undid all of cp51 pending some cleanups and discussion
1651    o added the [#include "AD_CONFIG.h"] statement to all files that need
1652       it for adjoint/tl #defines
1653     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1654     o removed tools/genmake since it no longer works
1655    
1656    checkpoint51n_post
1657    o modifications to make FREEZE flux visible to pkg/kpp
1658      - moved surfaceTendencyTice from pkg/seaice to main code
1659      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1660      - subroutine FREEZE now limits only surface temperature
1661        (this means new output.txt for global_ocean.90x40x15,
1662         global_ocean.cs32x15, and global_with_exf)
1663    o added surface flux output variables to TIMEAVE_STATVARS
1664    
1665    checkpoint51n_pre
1666    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1667    o added [#include "AD_CONFIG.h"] to all files that use the following
1668      defines:
1669      - ALLOW_ADJOINT_RUN
1670      - ALLOW_TANGENTLINEAR_RUN
1671      - ALLOW_ECCO_OPTIMIZATION
1672    
1673    checkpoint51m_post
1674    o incorporating changes to get TAMC/TAF working in genmake2
1675      - added new TAMC/TAF targets to the Makefile
1676      - various cleanups related to package handling
1677      - these changes should have no impact on the forward model
1678    
1679    checkpoint51l_post
1680    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1681     - faster algorithm for cal_addtime.F
1682     - higher precision arithmetic, where needed
1683     - pkg/exf *startdate variables changed from calendar date to
1684       model integration time
1685    
1686    checkpoint51l_pre
1687    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1688    o enable to apply restoring on S & T only in a latitude band.
1689    o update output (external_forcing_surf modif. change truncation errors)
1690       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1691    
1692    checkpoint51k_post
1693    o change default to: useNHMTerms=.FALSE.
1694     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1695       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1696     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1697        exp1, ideal_2D_oce
1698     - change data file of oceanic exp (leave the results unchanged for now)
1699       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1700    o set gravitySign automatically according to the vertical coordinate used
1701      (and change sign: back to "logical" value: +1 when R increases downward)
1702    o added an include barrier to the default CPP_OPTIONS.h and
1703      removed the #include "PACKAGES_CONFIG.h" from it
1704    o fix a bug in mom_fluxform (from chk51j_post)
1705    
1706    checkpoint51j_post
1707    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1708    o adjusted some flow directives (dynamics, thermodynamics)
1709    o added cubed-sphere case to test cost function
1710    o heckpoint_lev?_directives.h now include
1711      pkg-specific directives, whenever those are enabled.
1712    o Moving pkg-specific flow directives to corresponding pkg
1713      Moving pkg-specific differentiation list to corresponding pkg
1714      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1715      ---> conventions are
1716           - pkg_ad.flow
1717           - pkg_ad_diff.list
1718           - pkg_ad_check_lev?_dir.h
1719    
1720    checkpoint51i_post
1721    o merge of the branch-genmake2
1722      - knowingly breaks the older genmake
1723      - automatic generation of all ALLOW_${PKG_NAME} defines
1724      - new testreport supersedes older testscript
1725    o large number of package inclusion and header cleanups
1726    checkpoint51i_pre
1727    
1728    o new output for adjoin of global ocean vector invariant
1729    o fix for checkpoint of thermodynamic seaice and bulk_force
1730    o Steph gchem various cleanups
1731    
1732    checkpoint 51h_pre
1733    o fixed some single quotes
1734    o modify gchem pkg to be more versatile
1735    o modifications to clean up dic pkg
1736    o add pkg/cfc
1737    
1738    checkpoint51g_post
1739    o provide links for ARPACK and ADM*TLM
1740    o start removing verification/vero/
1741    o update AD-related stuff
1742      (in particular some IF-statements in model/src/ routines)
1743    o adding to verification/global_ocean.90x40x15/ adjoint of
1744      vector invariant setup
1745    
1746    checkpoint51f_post
1747    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1748    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1749      of tracer Green's fucntions for ocean inversion project.
1750    
1751    checkpoint51f_pre
1752    o Added on-the-fly spatial interpolation capability
1753        "USE_EXF_INTERPOLATION" to pkg/exf.
1754      - This is a temporary Cartesian-grid hack until
1755        the super-duper ESMF coupler becomes available.
1756      - See verification/global_with_exf/README for usage example.
1757      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1758        flags and modified pkg/seaice accordingly.
1759    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1760        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1761        non-local transport term.
1762    
1763    checkpoint51e_post
1764    o pkg/mom_vecinv:
1765      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1766      - add time-ave diagnostic of vorticity advection.
1767    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1768    o atmospheric geopotential: - include water vapor effect;
1769                                - use p^kappa in p* scaling.
1770    o land pkg: read initial state from files.
1771    o AIM : add stratospheric drag in the upper level
1772    
1773    checkpoint51d_post
1774    o change function ILNBLNK (=> last non-blank char.) to return zero
1775      (instead of the string length) when the string. char is empty
1776    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1777    o modif's to restore TAMC compatibility
1778      - avoid "_d" constructs in PARAMETER declarations
1779      - avoid interrupting lines by comment lines
1780    o Use cluster local disks for purely local I/O
1781      vs. globally visible disks needed for ctrl stuff
1782      (merged from ecco-branch)
1783      - new active_file_loc... and mdsio_..._loc routines
1784      - affected packages: autodiff, ctrl, grdchk, mdsio
1785    
1786    checkpoint51c_post
1787    o introducing integer flag debugLevel
1788      - debLevZero: suppress all output
1789      - debLevA: standard
1790      - debLevB: equivalent to current debugMode=.TRUE.
1791    o introducing pathname variable mdsioLocalDir for mdsio
1792      that can be specified at runtime
1793      (relevant for cluster I/O to local disk)
1794    `
1795    >>>checkpoint51b_post
1796    adjoint of ptracers
1797    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1798    o extended state in checkpoint_lev?, etc.
1799    o alternative ctrl/cost with tr1 or ptracer
1800    o new comlev1_bibj_ptracers
1801    o new ptracers.flow
1802    o made ptracers_forcing same as external_forcing_s
1803    o added verification for adjoint with ptracers
1804      - adm. grdchk fail so far
1805      - tlm. grdchk OK
1806      - checked tapelev/comlev recomputations: OK
1807    <<<checkpoint51b_pre
1808    
1809    checkpoint51a_post
1810    o added code for biogeochemistry package
1811      - new pkgs: dic, gchem
1812      - new subroutine in ptracers
1813    o modify code for biogeo packages
1814      - in model/src and pkg/ptracers
1815    
1816    checkpoint51
1817    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1818      - autodiff, ctrl, exf, grdchk, seaice
1819      kept separate packages
1820      - cost, ecco, obcs
1821    o updating verification/internal_wave, verification/lab_sea
1822      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1823    
1824    checkpoint50i_post
1825    o Preparing next differentiable checkpoint and sync
1826      of MAIN vs. ecco-branch
1827      - 1st step: this one is differentiable
1828      - 2nd step: next(! not this) checkpoint will have updated packages
1829                  from ecco-branch)
1830    
1831    checkpoint50h_post
1832    o new package "land": provide surface BC for AIM.
1833    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1834    o AIM: use true log-P extrapolation for near surface temp (= as in
1835        F.Molteni paper) ; update aim.5l_cs output.
1836    o New variable in PARM03 for more flexible pickups
1837    o somewhat cleaned package initialisation sequence for
1838      ctrl/ cost/ ecco/ in packages_... routines
1839    
1840    checkpoint50g_post
1841    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1842      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1843      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1844        made the default because of faster convergence than ADI
1845    
1846    checkpoint50f_post
1847    o exf totally restructured
1848      - replaced all exf_set_ routines by one generic exf_set_gen.F
1849        and made sure it's still differentiable
1850      - split exf_getffields.F into new exf_bulkformulae.F
1851      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1852      - updated adjoint/makefile and relevant verif. accordingly
1853    
1854    checkpoint50f_pre
1855     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1856          + change Evap over land. (update aim.5l_cs output)
1857     o added missing .cvsignores and made uniform across expts
1858     o changed configuration of tidal_basin_2d expt
1859     o added pkg/debug functions for tracing code in fatal crashes
1860     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1861     o new fn in pkg/monitor to stop model if solution grows too big
1862     o removed lots of single quotes from comments
1863    
1864    checkpoint50e_post
1865    o make KPP work with PTRACERS
1866     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1867       nearly a copy of kpp_transport_s
1868     - there is no analogue to SurfaceTendencyS, so I have to use
1869       gPtr(of the surface layer) instead
1870    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1871    checkpoint50e_pre
1872    
1873    checkpoint50d_post
1874    o change kpp output from multiple-record state files to single-record state
1875      files analogous to write_state.F
1876    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1877      analogous to the cg2d-related output.
1878    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1879      so that writing to internal file fn (with length 512) fails.
1880    checkpoint50d_pre
1881    
1882    checkpoint50c_post
1883    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1884    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1885    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1886    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1887    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1888    
1889    checkpoint50c_pre
1890    Merging from release1_p13:
1891    o bug fix for pkg/seaice dynamic solver
1892    o Added SEAICE_initialHEFF to pkg/seaice
1893    
1894    checkpoint50b_post
1895    o store u*,v* in gU,V instead of in guNm1,gvNm1
1896    o in order to put the momForcing out of the Adams-Bashforth:
1897      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1898      to timestep.F
1899    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1900    o re-generate output for highly sensitive test-exp:
1901       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1902    
1903    checkpoint50b_pre
1904    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1905    o corrected CPP option mismatch in exf_Bulk... functions for case
1906      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1907    
1908    checkpoint50a_post
1909    o Bug fix for merging between c50 and KPP.
1910      ikey was passed from thermodynamics to kpp_calc via
1911      common block rather than being recomputed in kpp_calc,
1912      in contradiction with new key itdkey.
1913      New key ikppkey created, and tamc.h headers updated.
1914    
1915    checkpoint50
1916    - 2nd step of merge with ecco-branch:
1917      merge changes in ecco-branch back into main trunk
1918    - bug fix in find_alpha
1919    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1920    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1921    - merged some sliced AD support routines
1922    
1923    checkpoint49
1924    merged from ecco-branch:
1925    o exf:
1926      - Enable initialisation of forcing fields to constant
1927        (runtime) values.
1928      - in exf_getffields.F
1929        Reduce i-/j-loop to interior domain, discarding overlaps.
1930        That also fixes wrong TAF-key computations for key_1, key_2
1931        with bulf formulae.
1932      - exf_init.F modify #ifdef for exf_init_evap
1933      - exf_getffieldrec.F, ctrl_getrec.F
1934        The following INT-usages are not safe:
1935          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1936          fldcount = int(fldsecs/fldperiod) + 1
1937        and were modified.
1938    o autodiff: checkpoint_lev...
1939      - updated storing for bulk formulae (some arrays were missing)
1940      - added state for seaice package
1941      - synchronized with main branch
1942    o DIVA:
1943      Modif.s in
1944      - the_main_loop.F
1945      - the_model_main.F
1946      and added cost_final_restore.F cost_final_store.F
1947      o With these changes, it is possible to fully separate
1948        the first forward run to compute the cost function (mdthe_main_loop)
1949        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1950        into separate model executions.
1951        This enables better tuning of DIVA to given queue sizes.
1952      o Loss of cost function value in consecutive DIVA runs is
1953        fixed by storing to 'costfinal' file.
1954      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1955        beginning/end of adjoint integration is accounted for.
1956      The current changes apply to TAF-1.4.26.
1957      TAF has one remaining bug, requiring one manual change
1958      (see MITgcm manual).
1959    o cal: synchronized between MAIN and ecco-branch
1960    
1961    checkpoint48i_post
1962    o Changes to restore differentiability of code w.r.t. previous tag
1963      (mostly adding new routines to make list and replacing
1964      pressure by totPhiHyd).
1965    o Updated and merged grdchk package
1966      - has both ADM and TLM checks
1967      - works for single- and multi-proc.
1968      - output cleaned
1969      - worked successfully for parallel DIVA
1970    o genmake:
1971      - Adding -platform=SP4
1972      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1973    o Modif. for DIVA:
1974      ctrl_unpack should not be called in intermediate DIVA interval.
1975      (similar thing would apply for active files such as
1976      tbar, sbar, psbar, which should not be reinitialised;
1977      only relevant for ecco-branch)
1978    
1979    checkpoint48h_post
1980    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1981    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1982    o Added SEAICE_initialHEFF to pkg/seaice
1983    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1984    
1985    checkpoint48g_post
1986    --- EOS:
1987    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1988      store total Potential in totPhyHyd for diagnostics & EOS.
1989    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1990    --- Pressure/geopotential gradient:
1991    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1992    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1993      ( changes results of global_ocean_pressure )
1994    o NLFS + z-coord.: add eta*Rho' contribution.
1995    o accurate phiHyd when using interface-W at the middle between 2 centers
1996     ( changes results of ideal_2D_oce )
1997    o includes r* 2nd term in potential gradient.
1998    
1999    checkpoint48f_post
2000    Merging from release1_p12:
2001    o Modifications for using pkg/exf with pkg/seaice
2002      - improved description of the various forcing configurations
2003      - added basic radiation bulk formulae to pkg/exf
2004      - units/sign fix for evap computation in exf_getffields.F
2005      - updated verification/global_with_exf/results/output.txt
2006    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2007      (SBO) core products, including oceanic mass, center-of-mass,
2008      angular, and bottom pressure (see pkg/sbo/README.sbo).
2009    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2010      to avoid negative values in shallow regions.
2011      - updated verification/natl_box/results/output.txt
2012      - updated verification/lab_sea/results/output.txt
2013    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2014    o Added useSingleCpuIO option (see PARAMS.h).
2015    o Updated useSingleCpuIO option in mdsio_writefield.F to
2016      work with multi-field files, e.g., for single-file pickup.
2017    o pkg/seaice:
2018      - bug fix in growth.F: QNET for no shortwave case
2019      - added HeffFile for specifying initial sea-ice thickness
2020      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2021    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2022      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2023    o pkg/seaice:
2024      - adjoint-friendly modifications
2025      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2026    
2027    checkpoint48e_post
2028    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2029    o dynamics: change definition of computational domain & adapt mom_fluxform
2030      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2031    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2032        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2033        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2034        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2035        inverted_barometer solid-body.cs-32x32x1
2036      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2037    
2038    checkpoint48d_post
2039    o in preparation for r*:
2040     a) use pre-computed gradient of hydrostatic potential:
2041        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2042     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2043        => affects results of glob_oce_pressure (different truncation error)  
2044      update output.txt of ideal_2D_oce & global_ocean_pressure
2045    
2046    checkpoint48d_pre
2047    o in preparation for r*:
2048      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2049      pass the 2 comp. of the grad. as arguments to momentum S/R.
2050      but for the moment, only used if it does not change the results.
2051    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2052    
2053    checkpoint48c_post
2054    Modifications in treatment of initial flux forcing controls
2055    to avoid extra storing of flux fields.
2056    
2057    checkpoint48c_pre
2058    o Added tidal_basin_2d experiment (currently 1D!)
2059    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2060    
2061    checkpoint48b_post
2062    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2063     (modification to pressure gradient not yet implemented)
2064    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2065      (for U & V) that are used for vertical advection of momentum.
2066    
2067    checkpoint48a_post
2068    o In preparation for r*, use temp. array to compute vertical transport
2069       in flux-form momentum pkg. => change results of few test-exp.
2070      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2071                        lab_sea, natl_box & plume_on_slope
2072    
2073    checkpoint48
2074    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2075    
2076  checkpoint47j_post  checkpoint47j_post
2077  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2078  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping

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