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revision 1.125 by jmc, Mon Jan 27 21:42:19 2003 UTC revision 1.684 by jmc, Tue Jun 20 21:20:25 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 make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
8    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
9    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
10       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
11    o tracer advection:
12     - clean-up and simplify calc_common_factors.F
13     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
14       advection subroutine (but still not used within DST advection S/R)
15    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
16    
17    checkpoint58j_post
18    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
19      from file (collects calls previously in FORWARD_STEP)
20    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
21    o adjoint store dir. adjusted accordingly
22    o genmake2
23      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
24    
25    checkpoint58i_post
26    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
27      on wind stress (SEAICEstressFactor defaults to 1.)
28    o Total number of Timers is finite (<=40): comment out 2 non-essential one
29      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
30    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
31      on CS-grid: no longer loosing mass.
32    o exf & curvilinear-grid: no longer modify longitude xC & xG.
33    o pkg/ggl90: fix sloppy output and fix a bug
34    o pkg/seaice: added SEAICEuseEVPpickup parameter
35      - Set to false in order to start EVP solver with
36        non-EVP pickup files when using SEAICEuseEVP
37      - fix sign error in diffusion in seaice_calc_rhs
38    
39    checkpoint58h_post
40    * Modifications for bottom topography control
41      o replace hFacC by _hFacC at various places
42      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
43      o add non-self-adjoint cg2d_nsa
44      o update autodiff support routines
45      o re-initialise hfac after ctrl_depth_ini
46      o works for 5x5 box, doesnt work for global_ocean.90x40x15
47    * Adding verification for 5x5 box (4-layer) bottom topography control
48    
49    checkpoint58g_post
50    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
51       used for mean seasonal cycle, mean diurnal cycle); add an example
52       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
53    o pkg/ggl90:
54      - add parameter (minimum surface kinetic energy)
55      - fix bug (avoiding division by zero)
56    o couple pkg/thsice to pkg/seaice:
57      - modify advection in seaice to accomodate new scalar fields to be advected
58      - only muliDimAdection scheme work with seaice/thsice
59      - mapping of thsice-variables to seaice-variables, back and forth
60      - does not break the verification experiments, but does not give the
61        desired results either
62    o pkg/seaice
63      - make (default) second order advection a bit less confusing?
64    
65    checkpoint58f_post
66    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
67      to pkg/seaice):
68      - new routines thsice_map_exf and thsice_get_exf provide the interface
69      - add an additional formal parameter to thsice_solve4temp
70    o pkg/exf:
71      - add new fields wspeed, snowprecip (to be able to couple to thsice)
72      - correct Stefan-Boltzmann constant
73      - new parameter for longwave surface emittance
74      - separate some stuff from exf_bulkformulae into new routines  
75        exf_radiation, exf_wind
76      - add new parameters and constants: longwave emissivity for ocean, ice
77        and snow, evaporation parameters over ice
78      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
79        either wind from stress or stress from wind
80    o pkg/thSIce:
81    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
82    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
83       and THSICE_CALC_THICKN
84    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
85    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
86      to make debugging easier.
87    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
88    o pkg/bulk_force:
89      - clean-up comments and parameters ;
90      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
91    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
92      generate new output for test-experiment: aim.5l_cs.thSI
93    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
94      testreport accordingly
95    
96    checkpoint58e_post
97    o SEAICE_CGRID adjoint done
98    o R_STAR adjoint implemented.
99      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
100      * need to sort out init. of h0facc, etc.
101    o Make pkg/profile fully independent of ecco,cost, etc. stuff
102      to be able to use it in pure forward.
103    
104    checkpoint58d_post
105    o upgrade simple test-experiment to tutorial example:
106     step.1: duplicate the experiment and (step.2) will remove the old copy.
107      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
108      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
109      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
110      tutorial_global_oce_biogeo    <- copy of dic_example
111      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
112      tutorial_plume_on_slope       <- copy of plume_on_slope
113      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
114      tutorial_global_oce_optim     <- empty for now (David ?)
115      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
116     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
117    o correct a sign problem in cost_scat.F
118    o obcs and ptracers: fix boundary conditions for advections schemes
119      with larger stencil
120    o thsice adjoint: start
121    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
122      completeness
123    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
124      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
125    o ptracers adjoint:
126      * avoid extensive recomputatations
127      * fix missing re-init. of gptr (missed by TAF)
128    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
129      me to turn off the excessive output to STDOUT that this package produces
130    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
131      and add those terms in Vector-Invariant formulation.
132    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
133      if the control period (xx_hfluxperiod etc) is 0
134    o in profiles pkg, clean routines and fix details
135    o in ecco pkg, reading ssh data:
136      fix problem in case the model does not start at iter0=0
137    o fix mnc-pickup/restart for ptracers
138    o new package prifiles:
139      code to compute profile-based cost by Gael Forget
140      (modifs in ecco, ctrl, autodiff)
141    o Benign bug fix in initialization (spotted by M. Mazloff) of
142      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
143    
144    checkpoint58c_post
145    o adjoint: finish NLFS adjoint and provide reference output in
146      verification/global_ocean.90x40x15/results_ad_nlfs
147    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
148      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
149      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
150      with SEAICE_CGRID defined.
151    o move calendarDumps from "data" to "data.cal" and clean-up the code
152      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
153    o add useEXF & useCAL flags (for now, set in hard-coded way)
154    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
155      (were missing in NH mode, and wrong in quasihydrostatic mode).
156      waiting for Chris updated version of calc_gw to add those CALLs.
157    o fix bug in quasihydrostatic S/R ;
158      add a test for this option: global_ocean.90x40x15.qshyd
159    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
160      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
161    o add on/off flag useOffLine for package OFFLINE
162    o seaice:
163      - modify advection so that it works also on the C-grid
164      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
165        problem in multi-tile runs with C-grid
166      - add flags for clipping ice velocities and/or masking solver forcing
167      - fix drag (ocean on ice) formulation and a bug that caused noise in the
168        C-grid solver
169      - added a few comments to seaice_diffusion.F
170      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
171        are now exclusive)
172      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
173        required re-ordering the code a little:
174       + make DAIRN global variable (defined in SEAICE)
175       + move computation of the viscosities eta and zeta into a new separate
176         routine (because I need to recompute them in seaice_ocean_stress.F)
177    
178    checkpoint58b_post
179    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
180      update output.txt of exp. aim.5l_cs.thSI
181    o various mnc cleanups and improvements:
182      + shrink lookup tables by factor of ~4
183      + better error reporting when running out of lookup space
184      + able to handle longer path/file names (up to 500 chars)
185    o adjoint:
186      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
187      - TBD: "hidden" mom_vecinv recomp. in dynamics
188    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
189     (allow to differentiate between forcing components using new integer flags:
190      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
191     and add new flag to put Dissipation tendency out of Adams-Bashforth.
192    o ecco
193      - enable trend removal from SSH anomaly obs.
194    o adjoint
195      - a fix for PmEpR when #undef EXACT_CONSERV
196      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
197      - try to fix "hidden" recomp. in forward_step for NLFS
198        (NLFS seems broken sometimes after I checked it in)
199    o seaice:
200     - add c-grid version of the dynamic solver:
201       + three new routines that are the c-grid substitute lsr, dynsolver
202         and ostres
203       + put a few fields that were local to dynsolver into global common
204         blocks, so that I can move the computation of stresses etc into
205         seaice_lsr (saves coding but may break the adjoint).
206     - replace more hardwired parameters by runtime parameters
207     - add ice masks that mask the rhs of the implicit solvers where there
208       is no ice (commented out in seaice_dynsolver, because i am not sure
209       if this works properly), eventually this should replace the clipping
210       of ice velocities in seaice_dynsolver to +/-40cm/s.
211    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
212      include it only where its needed
213    o move balancing of fluxes before the call of external_forcing_surf
214    o seaice:
215      - correct units of turning angles (now they are really in degrees)
216      - move computation of GWATX/Y out of main routine into dynsolver
217      - initialize GWATX/Y in seaice_init
218    o Apply mask on Fresh-Water flux (needed for SSH forcing).
219      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
220    o seaice: add runtime flags for turning angles (default to zero)
221    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
222      and trend from exf forcing and ctrl control adjustments
223    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
224      (since checkpoint57x_post)
225    o change the default rotation period to 86164.s = the Earth rotation
226    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
227      and based on a reference stratification. Tested within hs94.cs-32x32x5.
228    o seaice advection: add code for choosing between the default (2nd order
229      central differences) and multiDim advection schemes provided by
230      pkg/generic_advdiff
231    o seaice:
232      - removed all references to SEAICE_GRID.h fields from
233        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
234        (cubed-sphere configuration will change a little)
235      - grid computations in seaice_init are obsolete now.
236      - cleaned up code a little so that is easier to read (hopefully).
237      - added new (better?) discretizations of default advection and diffusion
238        (turn on with SEAICEuseFluxForm)
239      - replace 1 in 3d global fields by kSurface in growth.F
240      
241    checkpoint58a_post
242    o seaice:
243      - bug fix in advect.F
244    o shelfice:
245      - separate shelfice load anomaly from pload (breaks with time
246        dependent forcing), => introduce constant field shelficeLoadAnomaly.
247        Its default is 0., but it may be computed more cleverly from (unknown)
248        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
249        done offline. A good approximation of the pressure load anomaly is
250        necessary to avoid large initial adjustment processes underneath
251        deep-reaching shelfice.
252      - small fix in ISOMIP shelfice_thermodynamics
253      - add more sophisticated thermodynamics of Hellmer (1989), this is
254        now the default
255      - give a few constants more intuitive names
256    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
257      if bulk formulae are used in long integration (especially EmPmR). Turn
258      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
259      if balancePrintMean, the imbalance that is substracted is printed to
260      STDOUT.
261    o fix bug (typo) in obcs_apply_eta.F
262    o add a new package shelfice which enables us to model the circulation
263      underneath shelf-ice with draughts of hundreds of meters.
264     - works
265     - to do: + include improved thermodynamics
266              + check whether kSurfC (from model/inc/SURFACE.h) can be used
267                instead of new field kTopC
268              + can we use topoFile, Ro_surf and existing code in ini_depth.F
269                instead of new field R_shelfIce and new code in ini_depth.F
270                and ini_mask_etc.F?
271              + adjust vertical mixing schemes?
272    o seaice pkg:
273     - add a cpp-flag to include a simple formula for a salinity dependent
274       freezing point of sea water at the surface
275     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
276       meridional stresses are now different (and hopefully correct)
277    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
278       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
279       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
280    o pkg/diagnostics: add options and parameters for regional-statistics
281       diagnostics ; define regions by reading a region-mask from a file
282       (might add other options later)
283    o pkg/bulk_force:
284     - add option and parameters to use AIM surface-flux formulae.
285     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
286       others forcing fields (defined in PARM05, parameter file "data") are loaded
287       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
288     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
289     - use the right EXCH call for uwind,vwind (to work on CS-grid).
290     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
291       and parameters (note: calcWindStress replaces .NOT.readwindstress).
292     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
293    
294    checkpoint58
295    o add "--embed-source" option to genmake2 which, when the supporting
296      tools can be compiled (as determined by genmake2) will turn on the
297      embed_files package which then embeds the entire MITgcm source code
298      (*.[fFhc] + Makefile) used for the build within the executable
299      - requested by CNH but off by default
300      - adds a paltry <9MB to the mitgcmuv executable in most cases
301      - only writes the output when useEMBEDSRC in eedata is true
302    o clean up 3-dim. relaxation codes:
303      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
304      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
305      * Thanks to Tom Haine for testing!
306    
307    checkpoint57z_post
308    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
309      affects output (@ truncation level) of exp. plume_on_slope ; updated.
310    o fix the pickup behavior for obcs in combination with ptracers
311    o fix a bug in ptracers_external_fields_load
312    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
313      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
314    o transfered surface NH pressure to eta field (if exactConserv).
315    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
316         and update lab_sea output.txt file.
317    o completing 3-dim. relaxation code: additional term
318         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
319      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
320      * At compile time, in "EXF_OPTIONS.h" set
321          #define  ALLOW_CLIMTEMP_RELAXATION
322          #define  ALLOW_CLIMSALT_RELAXATION
323      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
324          tauThetaClimRelax3Dim = 15552000.0,
325          tauSaltClimRelax3Dim  = 15552000.0,
326      * 3 cases:
327          1) Use a constant-in-time 3-dim. field
328          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
329          3) Real-time relax. to time-evolving prescribed field
330    o Adding Laplacian-type smoothness constraint on
331      initial and boundary (forcing) controls (ic, bc)
332      * enable at compile-time via
333        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
334      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
335      * Absolute scale somewhat unclear so far
336      * no area weighting was included since no other cost term does so far
337    
338    checkpoint57y_post
339    First step for a NLFS adjoint
340    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
341    o new init. routines for calc_r_star, calc_surf_dr
342    o still need to deal with ini_masks_etc
343    o testreport seemed happy
344    checkpoint57y_pre
345    
346    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
347    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
348    o add new offset feature to offline pkg (plus minor cleanup)
349    o cfc fixes for final year of integration
350    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
351      be in GCHEM_OPTIONS).
352    
353    checkpoint57x_post
354    o fix testreport Pb in multiple test experiment.
355    o cleanup our namelist syntax in verification:
356      - make it more F95 standards compliant (some work still needed)
357      - allows the vast majority of our tests to work with gfortran
358    o Non-Hydrostatic:
359     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
360     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
361    o Allow to apply AB on T,S rather than on AB(gT,gS):
362     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
363     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
364       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
365     - need a "clever" read_pickup to restart from the other AB formulation
366    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
367    o remove some unused variables (reduces number of compiler warnings)
368    o adjoint
369      * Disable useVariableViscosity for adjoint for time being
370        (there are a number of extensive recomputations)
371      * Initialize certain variables needed for adjoint
372    
373    checkpoint57w_post
374    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
375                 fix the singleCpuIO RS version of MDSWRITEFIELD
376       and add a WARNING if using globalFiles=T with multi-processors.
377    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
378      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
379    o tracer advection scheme:
380      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
381       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
382       was not very convenient).
383      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
384       (further tests needed for the implicit DST & Flux-Limiter schemes).
385    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
386      and sRef for convenience, handy, when you want to initialize
387      ptracers in a large domain with a constant non-zero value. Also,
388      untangle ptracers_init.F a little.
389    
390    checkpoint57v_post
391    o change dome exp. to use variable viscosity in side-drag terms.
392    o remove all the files from the cfc_offline test since they are now
393      incorporated into tutorial_cfc_offline which has been producing
394      identical results for a few days of testing
395    o add new parameter: sideDragFactor to enable half-slip-side BC
396      and change side-drag S/R to use viscosity from mom_calc_visc
397      (can switch back by setting sideDragFactor=0.); affects results at
398      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
399       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
400    o vorticity & strain are now computed without masking, to account for
401      no-slip-side BC in variable viscosity calculation ; mask is applied
402      anyway later on, before computing advection/coriolis terms.
403    o modify exp4 to test new obcs support for reading from external files
404      and for passive tracers
405    o fix behavior of ptracers_monitor when monitor output is written to a
406      netcdf-file; still not independent of monitor.F (writes in the same
407      file).
408    o change default value of tRef (put a uniform, meaningful value for ocean
409      & atmos) and initialize sRef (was missing, as Martin mentioned).
410    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
411      to be proportional to enstrophy dissipation length.  Thus,
412       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
413      This is now consistent with Smagorinsky and with the manual.
414    
415    checkpoint57u_post
416    o OBCS and PTRACERS: add open boundary support for passive tracers
417      - either use homogenous (pseudo) v.Neumann conditions or prescribe
418        OB-values from file; this is not different from the way theta and salinity
419        are treated
420      - however, Orlanski-radiation conditions are not supported, and the model
421        will stop if you use pTracers and Orlanski at the same time.
422      - beefed up the rountine obcs_external_fields_load: now only those open
423        boundary values are overwritten with values from files for which there
424        are really files, otherwise the OB-fields remain untouched. This makes
425        it possible to use different OBs at different ends of the domain (as
426        with EXF)
427    o reduce number of exch calls in shap_filt (s2).
428    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
429      truncation level) 4/5 MLAdjust test results (11&12 digits match).
430    
431    checkpoint57t_post
432    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
433    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
434      same truncation, independent of the face number: affects affects several
435      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
436    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
437      note that biharmonic viscosity + no-slip was not tested in any experiment.
438    o fix bug in non-linear free-surf side-drag ; generate new output for
439      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
440    o make mnc honor the writeBinaryPrec flag for most kinds of output
441    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
442    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
443      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
444    o add brackets in multi-terms sum to get same truncation, independent of
445      the face number (manage to get exactly same value of gU,gV at the cs-edge)
446      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
447    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
448      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
449      a maximum grid-scale Reynolds number.  Also, changes all length calculations
450      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
451      Suggested values of viscosity parameters found in mom_calc_visc.
452      Many new viscosity diagnostics available.
453    
454    checkpoint57s_post
455    o Add clearing-house for viscosity calculations, mom_calc_visc and
456      correct numerous bugs in LeithD and Smagorinsky discretizations.  
457      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
458      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
459      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
460      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
461      The Strain-Tension form is now called with useStrainTensonVisc=.true.
462      ViscAhStrain and viscAhTension are now retired.
463    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
464    o In response to JMC's bug report, genmake2 now ignores any soft-links
465      that it finds in the *current* directory when searching for files.
466      Soft-links found in any other source directories will still work as
467      they did before.
468    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
469      a C routine to unlimit the stack size
470    o mnc-ify pkg/aim snapshot vars
471    o mnc-ify pkg/land as requested by Daniel
472    o various changes to mnc including:
473      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
474      - output can now be grouped so that all files within a group
475          change the ITER portion of their names in lock-step together
476      - can now read ("global") PER-FACE (in addition to PER-TILE) files
477          and works with both EXCH1 and EXCH2 (but needs more testing)
478      - writing works for all verification test cases w/ g77 on Linux
479    
480    checkpoint57r_post
481    o make MNC variable initialization happen earlier
482    o add diagnostics for (almost) each term of the momentum Eq.
483    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
484    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
485    o remove MINIMAL_TAVE_OUTPUT option ;
486      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
487    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
488      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
489    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
490    o add time-dependent SST, SSS control
491    o cost terms in ecco/ modularized (new cost_generic.F)
492    o cost_averages routines are modularized (new cost_averagesgeneric.F)
493    o new infrastructure for seaice model vs. obs misfits in seaice/
494      * driver from the_main_loop.F is seaice_cost_driver.F
495      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
496      * gradient check in Exp. 6a of natl_box_adjoint/
497    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
498      (see README file)
499    
500    checkpoint57q_post
501    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
502    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
503      - bug was reported by Jean-Michel and Ian Fenty
504    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
505      update exp. cpl_aim+ocn output.
506    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
507      Needed for high-res. runs with large global files
508      to be able to limit tapelev size
509    o Changed some tests for adjoint:
510      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
511      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
512      * global_ocean.90x40x15/ back to default 3-level checkpointing
513    o Modifications to enable scripted COMMON to MODULE conversion
514      * verification/OpenAD/code/ has necessary scripts and description;
515      * converts, compiles and runs successfully;
516    
517    checkpoint57p_post
518    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
519    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
520      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
521    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
522    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
523      (was already the case for dissipation with mom_vecinv,
524       and also the case for grad.PhiHyd when staggered-timeStep)
525      This will allow to put dissipation out-off the AB time-stepping.
526     Unfortunately, affects truncation error. Update output of exp. that "fails"
527      (cg2d matching number) and leave the others for later: front_relax(10),
528      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
529      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
530    
531    checkpoint57o_post
532    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
533      (2) its ready to be documented during the 20050801 DocFest
534    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
535      for ideal_2D_oce and lab_sea on linux_ia32_g77
536    o set to #undef CTRL_SET_OLD_MAXCVARS_30
537      in global1x1_tot/code_seaice_adj to access indices 32, 33
538      (worth another tag)
539    
540    checkpoint57n_post
541    o adding precip control xx_precip 32
542    o adding swflux control xx_swflux 33
543    o Replacing 10 forcing penalty cost routines by 1 generic.
544    o Implementing partitioning in time-mean and variable adjustment
545      for atmos. state.
546    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
547    o in natl_box_adjoint:
548      * updated exp 1 to 10
549        (but does not have time-mean vs. variable split results yet)
550    o updated global1x1/*_seaice_adj/
551      to incorporate latest changes
552    o enable useSingleCpuIO for mdsio vector routines
553      (applies in particular to tapelev I/O)
554    o removed inefficient K-loop in all active_file*control*.F
555    
556    checkpoint57m_post
557    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
558      and advect_cs (use EXCH-2 and standard cs-32 grid files).
559    o pkg/exch2: filling of face-corner halo regions is optional
560      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
561    
562    checkpoint57l_post
563     tag before updating tutorials (pre-release-2)
564    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
565       for output and interpolation of input fields onto model grid)
566    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
567       Affects results of exp. rotating_tank ; update output.txt.
568    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
569          and taking the square quantity and/or using a fraction-weight field.
570    o fix aim_diagnostics_init.F mate numbers.
571    o add mnc output capability to diagnostics/diagstat and update
572      our cvsignore files for the ACSII output generated
573    
574    checkpoint57k_post
575    o lab_sea now uses diagnostics package and provides a suite of
576      new EXF diagnostics output.
577    
578    checkpoint57j_post
579    o exf
580      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
581        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
582        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
583      * extended diagnostics output
584        - now includes all EXF variables
585        - hs, hl moved to common block
586        - separate S/R for diagnostics, called after ctrl vector is added
587        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
588        - EXFqnet contains true Qnet (i.e. includes qsw)
589      * updated verif. lab_sea, global_with_exf
590      * Rearranging hflux (exf_mapfields -> exf_getforcing)
591        to ensure that diagnostics sees a true EXFqnet
592    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
593    o diagnostics pkg: change pointers so that 1 diagnostic can be used
594      several times with different frequencies.
595    o mnc-ify the thsice package as requested by Daniel Enderton
596      - the monitor--MNC output needs work
597      - many attributes need to be added (most are currently blank)
598    o mnc-ify theaim_v23 package as requested by Daniel Enderton
599      - many attributes need to be added (most are currently blank)
600    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
601    o add Sadourny like discretization to the 4th.O vorticity advection scheme
602    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
603      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
604         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
605    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
606     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
607    
608    checkpoint57i_post
609    o Diagnostics package was changed: diagnostic allocation is now deactivated
610      by setting an empty file name in the namelist (used to be by setting 0 frequency)
611    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
612      add 1rst Order upwind vertical Shear.
613    o add a quick fix for A/B checkpointing in OFFLINE mode
614    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
615      end-run around the C/Fortran linking horror in eesup/src/timers.F
616    o added pkg/runclock: allows user to terminate run based on wall clock
617    o added non-hydrostatic scaling parameter: nh_am2
618    o pkg/my82: futile attempt to make results compiler-independent by adding
619      some "_d 0", etc. no effect.
620    o for mnc output, fill the 'T' coordinate var with myTime and create a
621      separate 'iter' variable for iteration count
622    o pkg/diagnostics:
623      add new capability: output of Global/Regional & per-level statistics ;
624      tested against monitor output (including land & thSIce) on various exp.
625    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
626    
627    checkpoint57h_done
628      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
629      data.diagnostics, data.gchem, data.ptracers) is done.
630    
631    o pkg/diagnostics: prepare for Global/Regional statistics.
632      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
633    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
634      and rename it: DIFFERENT_MULTIPLE
635    
636    checkpoint57h_post
637    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
638    o pkg/diagnostics: change output frequency, now in seconds (instead
639      of Nb of iterations). This requires to change data.diagnostics.
640    checkpoint57h_pre
641    
642    o in mnc, let the user create the output dir if both mnc_outdir_date
643      and mnc_outdir_num are false
644    o add fflags() to pkg/diagnostics which allows one to specify, on a
645      per-file basis, the file precision [default behavior is unchanged]
646    o added diagnostics to pkg/kpp, including computation of mixed layer
647      depth based on a temperature/density criterion
648    o updated verification/natl_box to test the new pkg/kpp diagnostics
649    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
650    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
651    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
652      not mnc -- this mistake was found by JMC and is now corrected
653    
654    checkpoint57g_post
655    o add Adams-Bashforth 3rd Order time stepping:
656      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
657      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
658    checkpoint57g_pre
659    
660    o make lambda[Theta,Salt]ClimRelax spatially varying
661      (default remains spatially uniform constant based on tau)
662    o added new control variables
663      * init. uVel, vVel, etanN
664      * lambda[Theta,Salt]ClimRelax
665    o separate masks used for ctrl_pack/unpack 'from write_grid' output
666      (suggested by G. Forget)
667    
668    checkpoint57f_post
669    o add parameter "baseTime" = model base time = time at iteration zero
670      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
671      account for baseTime shift
672    o move Coriolis arrays from PARAMS.h to GRID.h
673    checkpoint57f_pre
674    
675    o mnc-ifying the seaice package
676    o introduced an alternative length scale calculation for use in the limiting
677      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
678    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
679    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
680      as well as grad(vort3).  Made it compatible with both approximate form
681      for the cubed sphere and full form of these gradients.  Added flag
682      useFullLeith to select between approximate and full form.  
683    o add "d0" in getcon.F to reduce differences between compilers/platforms
684      update output.txt of exp. fizhi-gridalt-hs
685    o change port_rand funtion to allow to set the seed.
686    o fix obscure MNC bug involving conversion between reals and integers
687      - it caused no problems with certain (eg. gcc, ifc) compilers but the
688        new version is now more standards-compliant
689    o adjoint-related modifications
690      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
691      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
692      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
693    
694    checkpoint57e_post
695    o Adding eddy stress controls a la Ferreira et al.
696    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
697    
698    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
699      update output.txt of exp. fizhi-gridalt-hs
700    o add more "Z" dimensions and associated coordinate vars to MNC
701    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
702    o parameter calendarDumps: when set, approximate months (30-31 days) and years
703      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
704      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
705      months and years.  Requires pkg/cal.
706    o diagnostics: add pickup functionality
707      - off by default for backwards compatibility
708      - current version only uses MDSIO -- MNC will be added
709    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
710    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
711    
712    checkpoint57d_post
713    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
714    o modify verification/ideal_2D_oce so that it tests the creation of mnc
715      output from the diagnostics package
716    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
717    o make genmake2 more portable by using ".$FS" instead of ".f" for more
718      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
719    o add coordinate variables to the MNC output from the diagnostics package
720    o change MNC-flags default value: true when useMNC=TRUE
721    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
722      the ability (off by default) to read the grid information using MNC
723    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
724    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
725    o do snap-shot diagnostics at the middle of the time-interval (instead of
726      at the end).
727    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
728      new test for AIM with thSIce + slab-ocean
729    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
730    o move state variable diagnostics to the beginning of the time step ;
731      (note: still needs some work specially for snap-shot diagnostics)
732      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
733    
734    checkpoint57c_post
735    o Change testing option (-ieee) to get closer agreement between g77 & ifort
736    o generate new output.txt files on faulks with g77 & the new -ieee option
737    checkpoint57c_pre
738    
739    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
740      update output.txt of exp. global_ocean.90x40x15
741    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
742      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
743    o add saltFlux(+File) forcing capability with periodicExternalForcing
744    o allow to use pkg diagnostics for GM-Redi & ThSIce output
745    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
746    o improvements for the MNC output from DIAGNOSTICS:
747      - correct handling of the unlimitied dimension
748      - all dims now have associated coordinate variables
749      - variables located at U, V, and Corner ("Z") points are now written
750        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
751        *all* data points are output
752    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
753    o added pkg/seaice/seaice_monitor.F
754    o mdsio_readfield.F can now read files visible only to master MPI process.
755    o pkg/seaice: some test code for ice-modified ocean stress
756    o exf_getffields interpolation defaults to bilinear for all scalar forcing
757      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
758      spurious negative numbers for precipitation and humidity.  Will cause
759      some small numerical differences for integrations using pkg/exf/exf_interp.F.
760    o pkg/ctrl/
761      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
762        May be enabled via doPackDiag
763      *  introduce z-scaling of
764         + gradient (doZscalePack) and
765         + control (doZscaleUnpack)
766    o pkg/mdsio/
767      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
768      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
769    
770    checkpoint57b_post
771    o simplify options in diagnostics_fill arguments (remove weird combinations)
772    o fix MNC coordinate variables so that they now contain per-face index
773      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
774      general, EXCH2 grids are only aligned to a "local" coordinate system
775    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
776    o Implement instantaneous output within pkg diagnostics:
777      setting a negative frequency in data.diagnostics produces
778     "snap-shot" output (as opposed to time-average if freq > 0)
779    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
780      NOTE: change ptracer diagnostics name: use 2 characters to work with
781            more than 9 tracers. Add also diagnostics of advect & diffus flux.
782    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
783      becomes the coordinate variable for the 'T' dimension
784    o add CF-style coordinate variables to MNC
785      - just a first cut:  numbers are meaningless on the cubesphere and
786        missing along the T axis but otherwise it works!
787    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
788    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
789    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
790      this is based directly on what the model compute, so that the content of
791      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
792    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
793    o clean up build options files for SunOS, in particular
794      - remove -traditional from xmakedepend
795      - change -xarch=v9 to -xarch=native for f77
796      - restore use of make (not gmake)
797      - add CC=gcc if using g77
798    o changes per discussion of AM, JMC, & EH3 today:
799      - move redundant "grid" variables out of "state" -- in preparation of
800        creating proper CF-style coordinate variables and in recognition
801        that any/all grid variables can be easily copied (eg. w/NCO) from
802        the grid files into any of the other NetCDF files
803      - *always* output grid variables with MDSIO (this will eventually be
804        changed)
805      - output MNC grid file if useMNC is true
806    o every instance of _END_MASTER() has been found and replaced with
807      _END_MASTER( myThid ) in order to satisfy certain picky Sun
808      preprocessors
809    o re-arrange diagnostics pkg initialisation:
810     - allow each package to extend the available diagnostics list
811     - add some checking and fix small problems (multi-threaded, ...)
812     - new S/R diagnostics_fill (replace fill_diagnostics):
813       look through the short list of active diag. (instead of the long list)
814       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
815    
816    checkpoint57a_post
817    o this set of changes restores TAMC compatibility
818      tested for global_ocean.90x40x15 adjoint on trough
819      (what a pain)
820    
821    checkpoint57a_pre
822    o some modifs in tools/build_options for sunos
823    o call ctrl_pack for ctrl at end for optimcycle=0
824    
825    checkpoint57
826    o add horizontal bi-harmonic viscosity for vertical velocity
827      - new parameter viscA4W (defaults to viscA4)
828      - affects only non-hydrostatic code
829      - to be done: no-slip lateral boundary conditions
830    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
831    o implement Implicit Vertical advection for pTracers
832    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
833      (implemented also for implicit vertical diffusion & advection)
834    o OBCS: extend application of tracer open boundary conditions
835      to a strip beyond the boundary of width Olx/Oly
836    o add call monitor to TAF set of required calls (flow directives)
837      and include in natl_box_adjoint
838    o untangle a few ifdefs related to cost, ctrl, autodiff
839      untangel a few ALLOW_ECCO_OPTIMIZATION
840    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
841      (theta2, salt2 in ecco_cost_weights)
842    
843    checkpoint56c_post
844    o OBCS as control variables
845      - update ctrl_ad_diff.list, obcs_ad_diff.list
846      - remove balance of obcs controls from default
847      - fix index bug nobcs in ctrl_init
848      - fix dummy fields filen in ctrl_pack
849      - add dummy weights for obcs
850    o lsopt: comment out fort.94 output
851    o optim:
852      - remove unnecessary header files
853      - adjusted namelists
854      - add xerbla.F to Makefile
855    o exf:
856      - multiple modifications of exf_check_range
857      - unit change in exf_init_runoff from [m/year] to [m/s]
858    o mdsio:
859      - i/o-vector change debugLevel from debLevA to debLevB
860    
861    checkpoint56b_post
862    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
863      is called from DO_THE_MODEL_IO
864      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
865      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
866      - clean up PTRACERS_WRITE_TIMEAVE a little
867    o add another verification experiment that tests both the cfc-pkg and
868      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
869      reactive tendencies treated inline with regular timestepping
870    o testreport previously did a lousy job of comparing small numbers, so
871      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
872      implemented in the little c-progam tmp_cmpnum.c which is embedded in
873      testreport.
874    o ptracers_monitor: bug fix for MPI
875    
876    checkpoint56a_post
877    o GCHEM: finish reorganizating the package
878      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
879        (introduces another 3D-array for each passive tracer, but only if
880        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
881        gchemTendency is not needed because the timestep is done separately)
882      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
883      - GCHEM is now---more or less cleanly---separate from PTRACERS
884      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
885        so clear to me how that should be done in a general way.
886    o CFC: improve formatting of output in CFC_ATMOS
887    o PTRACERS:
888      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
889        that ALL experiments with ptracers enable can be checked. This makes
890        GCHEM_MONITOR obsolete.
891      - include a runtime parameter PTRACERS_monitorFreq that defaults to
892        monitorFreq
893      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
894    o add PTRACERS (PTR0[1-5]) to testreport output
895    o exf_check_range:
896      * default changed to .TRUE.
897      * will check values for niter0 if debLevA, every timestep if debLevB
898      * STOP in exf_check_range if 'out of range'
899      * range chosen generous to allow for potential extema
900      TBD: a version with stricter range
901           permitted range would be runtime parameters
902    o GMredi:
903      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
904      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
905      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
906    o GCHEM:
907      - move call to GCHEM_FORCING_SEP, so that it is now called before
908        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
909      - introduced a useGCHEM runtime flag and applied it everywhere.
910      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
911        this flag is now only visible within GCHEM-pkg routines.
912      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
913        be replaced by a 3D array that is computed before thermodynamics; for
914        this, the tracer ID iTracer had to be included into the parameter list
915        of ptracers_forcing
916      - set up forward_step to call gchem_forcing, that will replace
917        gchem_forcing_int in ptracers_forcing
918      - cleaning up
919    o small cleaning of exch2: remove files that are also in eesupp/src
920    
921    checkpoint56
922    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
923    o mnc: cleanup "full" files--fixes out-of-memory problem
924    o ECCO-GODAE
925      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
926      * fully merged and updated from SIO code
927        windstress sign change affects
928        - exf_inscal_[u/v]stress
929        - sign of xx_tau[u/v] adjustments
930        - signs in cost_scat
931      * ctrl_get_gen: avoid update of tau[u/v] for first few days
932      * natl_box_adjoint updated and compressed
933      * 2-level checkpoint switch added
934        (tested in EXP. 1 of natl_box_adjoint)
935      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
936    o SVD
937      * first complete, non-hacked version for SVD calculations
938      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
939        performed via direct access files admtlm_vector.it????
940        (via ctrl_[un]pack)
941      * optimcycle is used for ARPACK iteration counter
942        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
943      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
944        and add linear transforms where necessary
945      * controls are initial/final SST, SSS (can be extended; need to check
946        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
947    o mdsio: filename info to both stderr, stdout
948    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
949      from sign change
950    
951    checkpoint55j_post
952    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
953      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
954    o add consistent build directories and .cvsignore files to verification
955    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
956    o make all subroutines 30 or less characters in length for certain older
957      compilers to work (a thorough search only turns up two routines in
958      pkg/ptracers)
959    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
960      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
961    
962    checkpoint55i_post
963    o change arrays for total vertical diffusivity (2.D if explicit,
964      3.D if implicit) ; each ptracer uses its own background value.
965    o added mnc/NetCDF output capability to ocn_compon_interf
966      - added bits to verification/cpl_aim+ocn so that it can run on
967        ITRDA and other clusters without the mpirun "-wd" option
968    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
969      configuration
970    o give MNC the ability to create additional files rather than
971      exceeding a specified file size limit "MNC_MAX_FILESIZE"
972      - the default is just less than 2GB which is a practical limit
973        on many systems
974    o Compute the non-local term using either KPP vertical diffusivity (=default)
975       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
976    
977    checkpoint55h_post
978    o add verification test "vermix"
979    o remove all the *_ioinc flags and replace with the single global
980      outputTypesInclusive flag
981    o allow to set a vertical profile of vertical diffusivity for T & S
982    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
983    o useMNC moved from data.mnc to data.pkg
984    
985    checkpoint55g_post
986    o Renaming carbon AD experiments to comply with testreport conventions
987    o Updating adjoint of Held-Suarez hs94.1x64x5
988    o Fixing directives for non-ECCO forward_step, after ECCO directives
989      have been fixed to avoid recomp. of do_oceanic_phys
990      Works well for global_ocean.90x40x15,
991      but recomp. issue remains for carbon
992    o Updating adjoint output for natl_box_adjoint after
993      pkg/ecco has been modified (see taga c55d_post)
994    
995    checkpoint55f_post
996    o rename to timeave_init_fixed
997    
998    checkpoint55e_post
999    o some delicate re-shuffle of store directives to avoid one
1000      extra call of do_oceanic_physics
1001      affects ecco_the_main_loop.F, do_oceanic_physics.F
1002      checkpoint_lev1_directives.h
1003    o NB: this may break global_ocean adjoint temporarily,
1004      but it is clear how to fix it. Will do later, need this now.
1005    
1006    checkpoint55d_post
1007    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1008    o ecco_cost_weights is modified to 1x1 runs
1009    o modifs to allow observations to be read in as
1010      single file or yearly files
1011    o enable to read exf forcing fields as either
1012      single file or yearly files (flag useExfYearlyFields)
1013    checkpoint55d_pre
1014    
1015    o switch between 2-level and 3-level checkpointing
1016    o add ability of MNC to write local and "partial" (eg. 2D slices where
1017      the full 3D field is never actually stored) arrays to NetCDF files
1018      with the correct (that is, the complete multi-dimensional) set of
1019      array indicies
1020      - used in mom_vecinv() to write the diagFreq output
1021      - tested (demonstrated) in verification/aim.5l_cs
1022    o further mnc-ification
1023      - add verification/lab_sea to the list with mnc setups
1024      - fix undefined mnc v-names in cd_code
1025      - add kpp to mnc output (both snapshot and timeave)
1026    o non-hydrostatic code
1027      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1028        in calc_gw.F
1029      - defaults to viscAh
1030      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1031        friction or Leith) in non-hydrostatic mode, as long as there is
1032        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1033    o pkg/cost
1034      extend simple cost functions to treat time mean quantities
1035      (T,U,V) via cost_accumulate_state from cost_tile
1036    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1037        be 2 times larger than the minimum size the advection scheme requires.
1038        now get a perfect conservation of salt in advect_cs test-exp (updated)
1039    o GGL90 (Gaspar's TKE mixed layer)
1040      - add horizontal diffusion of TKE, requires exchanges in
1041        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1042        default. In OPA there is no horizontal diffusion of TKE but the
1043        mixing coefficients are computed from a horizontal average of TKE of
1044        6 points or so. I think that diffusion has a little more physical
1045        justification.
1046      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1047        was in vain)
1048      - mask tke-variable in ggl90_init
1049    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1050    o fix biharmonic diffusion on CS-grid.
1051    o more obcs stuff
1052      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1053        for reading boundary values. This routine is called from
1054        obcs_prescribe_read
1055      - updated obcs_check
1056      - changed sponge layer relaxation parameter units for days to seconds
1057      - turned off sponge layer by default
1058      - changed argument list of OBCS_CALC to myTime+deltaTclock
1059      - fixed about 35 bugs in obcs_external_fields_load
1060    
1061    checkpoint55c_post
1062    o obcs stuff
1063      - new runtime flags useOBCSprescribe, useOBCSbalance
1064      - re-arranged obcs_calc
1065      - moved exf_getobcs to obcs_prescibe_read
1066        obcs_prescibe_read is called after ORLANSKI stuff
1067        and independent of it (executable can contain all).
1068      - updated obcs_check
1069      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1070        These may be necessary only if tangential velocities are
1071        prescribed at OB, not sure, needs testing.
1072    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1073      which simplifies the calls and passes the ifc check-bounds test
1074    
1075    checkpoint55b_post
1076    o add a 2D scalar, Z location, exchange_2 routine.
1077    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1078      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1079      affects advect_cs results (for the wrong reason): update output.txt
1080    o use a more standard discretization for biharmonic viscosity ;
1081     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1082      affects results of dome set-up: update output.txt
1083    o fix gad_advection.F (CubedSphere part), back to version 1.23
1084    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1085    
1086    checkpoint55a_post
1087    o merged code to
1088      * prescribe/read time-dependent open boundaries
1089        (works in conjunction with exf, cal)
1090      * sponge layer code for open boundaries
1091      * each boundary N/S/E/W now has its own CPP option
1092        (healthy for the adjoint)
1093    
1094    checkpoint55
1095    o up-to-date adjoint of previous breaks
1096      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1097      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1098      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1099      - carbon: * remove tr1-related adjoint verification
1100                * add ptracer as control variable
1101    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1102      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1103    
1104    checkpoint54f_post
1105    o in verification/carbin/ remove experiment related to
1106      ALLOW_PASSIVE_TRACER (array tr1 etc)
1107      code_ad/ input_ad/ results_ad
1108    
1109    o add two new packages
1110      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1111        + subject to optimization (memory)
1112      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1113        + subject to reordering (many GOTOs in the original code)
1114        + so far opps is called for every (i,j) point, and then operates in
1115          the vertical; one may want to reorder the scheme in order operate in
1116          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1117          fields)
1118    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1119      - all verification tests compile and run with linux_ia32_g77
1120      - defaults are compatible with current input files--nothing
1121        should change if you were not previously using MNC
1122      - MNC output has been added in numerous places (eg. timeave)
1123        but there are still a few writes not yet do-able with MNC
1124        (this is in progress)
1125      - flags now allow for either/or/both use of MDSIO and MNC and
1126        documentation will soon follow
1127      - numerous small formatting cleanups for ProTeX
1128    o add version info (via BUILD_INFO.h) to MNC and stdout
1129    
1130    checkpoint54e_post
1131    o add two new packages
1132      - pp81 (Packanowski and Philander, 1981), Richardson number and
1133        stratification dependent mixing
1134      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1135      - these scheme operate in a similar manner as KPP (without ghat, of
1136        course), however there is only one diffusivity that is used for both
1137        temperature and salinity (and passive tracers)ç
1138    o add offline package
1139    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1140      provided by Stephanie Dutkiewicz
1141    o genmake2: add ability to search for C compilers and cleanup test output
1142      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1143    
1144    checkpoint54d_post
1145    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1146    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1147      leading to additional shift by 5 days each year of integration
1148       (i.e. leading to considerable offset over the years)
1149    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1150    o start with no AB and no initial filtering (staggerTimeStep):
1151      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1152    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1153      (external loading & cpl import/export stay in forward_step.F)
1154    o update coupling interface to work with new staggerTimeStep
1155    o change MDSIO ptracers_pickup.
1156    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1157    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1158    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1159    
1160    checkpoint54c_post
1161    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1162      this affects (truncation error) output.txt of test-exp:
1163       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1164    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1165    o change Qnet to always be the net heat flux, (+upward).
1166      affects (truncation error) output of natl_box exp.: updated
1167    o define the max number of passive tracers in PTRACERS_SIZE.h
1168    o start to test mnc routinely in exp0
1169    o add sea-ice loading (sIceLoad) as a new forcing field.
1170    
1171    checkpoint54b_post
1172    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1173       impressive on Altix and Opteron systems)
1174    o diagnostics can now write NetCDF files through the mnc package
1175    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1176    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1177    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1178      affects (truncation error) output of lab_sea & natl_box exp.: updated
1179    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1180    
1181    checkpoint54a_post
1182    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1183    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1184    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1185    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1186      + internal_wave (shift in writing cg2d_ini_res)
1187    checkpoint54a_pre
1188    
1189    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1190      - modified verification/lab_sea and natl_box_adjoint accordingly
1191    
1192    checkpoint54
1193    checkpoint53g_post
1194    o prepare splitting of thermodynamics: store convect.counter in common block
1195    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1196      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1197    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1198    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1199    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1200    o restore adjointability
1201    
1202    checkpoint53f_post
1203    o modifications that affect AIM experiment results (update output.txt):
1204      - no advection of S at top interface Nr (pkg/generic_advdiff)
1205      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1206    o AIM pkg:
1207      - include stability function into surf.Flux derivative relative to Tsurf
1208      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1209    
1210    checkpoint53e_post
1211    o merged cylindrical coord configuration
1212    o added rotating_tank experiment
1213    checkpoint53e_pre
1214    
1215    checkpoint53d_post
1216    o faulks upgraded: re-generate output.txt that have changed:
1217       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1218    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1219    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1220    o added Sadourny discretization of Coriolis
1221      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1222      - re-enabled use of omega3 (useAbsVorticity)
1223    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1224      vector-invariant equations
1225      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1226    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1227      hopefully without new bugs
1228      - still to do: biharmonic friction for non-hydrostatic w
1229    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1230    o regenerated output for global_ocean_ebm (using -ieee)
1231    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1232      of mom_common/
1233      - simple re-arrangement of instructions within computing loop
1234    checkpoint53d_pre
1235    
1236    checkpoint53c_post
1237    o new version of coupler for AIM+thSIce and Ocean models
1238     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1239     - land: change Evaporation of snow
1240     - aim with thSIce: fix bug in snow-precip.
1241    o changes to calc_gw.F
1242     - bug fix for w^2 term near the bottom boundary
1243     - (hopefully) improve the lateral slip boundary condtions for use with
1244        partial/looped cells
1245      - because the bug fix changes two verification experiments anyway (exp5
1246        and plume on slope), change the lateral boundary condition from half slip
1247        to the value of no_slip_sides
1248    o ebm package wasnt quite up to the parallel task. Fixed that.
1249    o Adjoint of EBM package + verification
1250      * TLM OK
1251      * ADM not sufficient accuracy yet (needs further testing)
1252    
1253    checkpoint53b_post
1254    o Commiting new energy balance model to repository
1255      * package is pkg/ebm
1256      * verif. is verification/global_ocean_ebm
1257      * references are in ebm_driver.F
1258    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1259    C        Global thermohaline circulation. Part I:
1260    C        Sensitivity to atmospheric moisture transport.
1261    C        J. Climate 12(1), 71-82
1262    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1263    C        Global thermohaline circulation. Part II:
1264    C        Sensitivity with interactive transport.
1265    C        J. Climate 12(1), 83-91
1266    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1267    C        Destabilization of the thermohaline circulation
1268    C        by atmospheric eddy transports.
1269    C        J. Climate 7(12), 1870-1882
1270    o Will need long integration testing.
1271    checkpoint53b_pre
1272    
1273    o created pkg/mom_common in preparation for variable viscosity code
1274    o renamed and split ini_mnc_io
1275    o pkg/land: only liquid water can diffuse or run-off
1276    o AIM using land: soil wetness availability account for snow
1277    o added printMapIncludesZeros to EEPARMS namelist
1278    
1279    checkpoint53a_post
1280    o restore TAMC compatiility for exf_constants.h
1281      (no usage of _d in .h)
1282    o Additional storing in KPP in an attempt to fix
1283      TAMC problem with adjoint of KPP code.
1284      (no success...)
1285      Identical code works fine with TAF.
1286    o Fixed verification/natl_box_adjoint experiments.
1287      Initial conditions for Experiments 4 and 5 are now
1288      set to "SEAICE_initialHEFF=0", which is more reasonable,
1289      and hence gives results closer to that of Experiment 2.
1290      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1291    
1292    checkpoint53
1293    o stable checkpoint with up to date adjoint
1294      TLM tests only run for 1st grdchk at the moment. Its unclear if
1295      this is a code problem or a problem with resetting code for g_
1296      variables that is being autogenerated wrong.
1297      Otherwise:
1298       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1299       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1300         are both still in chaos following their security messes.
1301    
1302    checkpoint52n_post
1303    o various build (mostly genmake2) changes including:
1304      - ability to build/run more easily within Cygwin and MacOS X
1305      - more complicated Makefiles with a stronger dependence on Gnu Make
1306    o pkg/seaice modifications
1307      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1308        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1309        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1310      - changed proxy for geostrophic velocity and updated
1311        verification/lab_sea/results/* accordingly
1312      - removed ADI dynamic solver from pkg/seaice
1313      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1314        they caused a segmentation fault under certain circumstances
1315      - removed unused field WATR
1316    o bug fix in exf-package:
1317      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1318         now reflect that.
1319    o small fixes in the cal-package:
1320      - set reference date to first of January for the 'model'-calendar
1321      - failing of cal_CheckDate in cal_FullDate now actually results in a
1322        warning
1323    o small modifications in exf-package to increase flexibility:
1324      - change climtempfreeze from a constant to a runtime parameter that
1325        is specified in data.exf_clim (default = -1.9)
1326      - introduce runtime parameter windstressmax (default = 2.0) that is
1327        specified in data.exf
1328    o fix in pkg/thsice:
1329      - update Evap (Tsf changes) to be consistent with Latent heat flux
1330      - maintain snow precipitation unchanged (even if Tsf >=0).
1331     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1332    
1333    checkpoint52m_post
1334    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1335      this does not change any of the results, because myIter=0 in swfrac always
1336      lead to jwtype=2 (the default anyway), but the call makes little sense
1337      as a default
1338    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1339    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1340      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1341    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1342    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1343    o extending useSingleCpuIO option to work with new exch2 I/O format
1344      - old-style, missing-tile I/O is still accessible by defining CPP
1345        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1346    o monitor package can write to NetCDF files and/or STDOUT
1347    o fix re-definition bug in MNC_GRID_INIT_ALL()
1348    o doc/api_reference added
1349      - a framework for building an API Reference Manual using all
1350        the "protex" comments embedded in the code
1351      - see pkg/generic_advdiff, pkg/mnc for examples
1352    o MNC:
1353      - make myThid the last argument for all subroutines
1354      - new default for the grid files: NO halos
1355      - add useMNC and other run-time flags
1356      - separate per-file-group handling of the unlimited dimension
1357      - early initialization of MNC w/ flags read at the eeboot stage
1358        and lookup tables set in initialize_fixed
1359      - write all MNC output to a freshly-created directory
1360    o thermodynamics sea-ice (thsice) is now tested with testreport.
1361    o test exp. advect_cs: use the standard cs32 grid ; update output.
1362    o Added functionality to grdchk:
1363      pick global i,j,k position (or nearest wet) where to perform check.
1364    
1365    checkpoint52l_post
1366    o new land formulation:
1367      a) use ground enthalpy as prognostic variable to ensure exact
1368         energy conservation.
1369      b) account for water temperature and for latent heat of freezing
1370         in all processes (rain, run-off, ground storage)
1371      c) compute surface and ground temperature implicitly.
1372    o aim_v23 modification for new land model:
1373      a) Treat separately land / ocean / sea-ice surface fluxes
1374         to allow implicit computation of land & sea-ice surface temp.
1375      b) add snow precipitation.
1376    checkpoint52l_pre
1377    
1378    o fix problem (when 1 tile is empty) in min/max monitor.
1379    o fix bug in timeAve (u,vZetatave in common block)
1380    o no restoring terms under ice for pkg/seaice
1381    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1382    o bug fix for pkg/seaice pickups
1383    o change MNC call locations and add coordinate attributes
1384    o mask vorticity at the corner ; affects global_ocean.cs output
1385    o fix ini_curvilinear_grid ; test CS experiments with mpi
1386    o aim.5l_cs: modify sea-ice fraction input file ; update output
1387    o exf: Adding simple range check routine for exf fields after read
1388    
1389    checkpoint52k_post
1390    o removed top-level directory "diags"
1391      - we migrated these functions to pkg/timeave a long time ago
1392    o fixed bug introduced in pkg/monitor
1393    o accuracy ctrlprec = 32 insuffient for gradient checks using
1394      averaged fields (I/O via cost_averages)
1395      -> use ctrl.h in active_file*.F to control I/O precision.
1396    o paramter list of CALL ADTHE_MAIN_LOOP
1397    o added initial do_the_model_io to ecco
1398    o set all ...Freq to zero after cost_final
1399      taveFreq, dumpFreq, pChkptFreq
1400    o MAIN and ECCO differentiability restored
1401    
1402    checkpoint52j_post
1403    o fix nchklev in tamc.h for global_ocean...
1404    o Bringing flow and store directives up-to-date
1405    o Really weird thing!
1406      call do_the_model_io from the_main_loop with parameters
1407      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1408      TAF places a faulty re-call of initialise_varia
1409      after cost_final call which should not be there!
1410    checkpoint52j_pre
1411    
1412    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1413      error messages
1414    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1415    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1416      debug output
1417    o modfied mdsio_writefield.F to handle non-global files under exch2
1418    o update AIM Cubed-Sphere exp (aim.5l_cs):
1419      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1420    o update AIM Equatorial Channel exp:
1421      use standard aim_v23 pkg and change the SST fields to be more realistic.
1422    o globalFile now works with exch2
1423    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1424      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1425    o limit timeave output for hi-res integrations
1426    
1427    checkpoint52i_post
1428    o removed CPP_EEOPTIONS.h from verification/*/code
1429    o updated the tiling for global_ocean_pressure
1430    checkpoint52i_pre
1431    
1432    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1433      the old pkg/aim).
1434    
1435    checkpoint52h_pre
1436    o shortened offending lines in exch2_send_rx?.template
1437    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1438    o genmake2: add build & execute test for NetCDF code
1439    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1440      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1441    o added useSingleCPUIO flag to monitor.F and mon_out.F
1442    o added temporary hack for sea-ice dynamics on the cube:
1443      metric terms are ignored and it is assumed that
1444      there is no sea-ice on cube faces 1, 2, 4, and 5.
1445    
1446    checkpoint52f_post
1447    o added exch2 cube routines to pkg/exch2
1448    o modified hs94.cs-32x32x5 to use it
1449    o added new grid files to hs94.cs-32x32x5
1450    checkpoint52f_pre
1451    
1452    checkpoint52e_post
1453    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1454      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1455    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1456      to work with implicit vertical advection and AB ;
1457    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1458    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1459     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1460    checkpoint52e_pre
1461    
1462    o fix bug in impldiff when Nr=1 or Nr=2.
1463    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1464    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1465    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1466      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1467    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1468    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1469    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1470    
1471    checkpoint52d_post
1472    o re-tiled many expts to allow comparison in multi-processor mode
1473      - updated output accordingly
1474      - changed hs94.128x64x5 to use intial T from file rather than use the
1475        random number generator
1476    o add infrastructure in model routines for fizhi and gridalt packages
1477    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1478    o changes to permit hi-res, cubed-sphere, configuration
1479      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1480      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1481      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1482        of surface winds for the cube
1483      (A verification experiment, based on global_ocean.cs32x15, but with
1484       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1485       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1486       complete with example surface forcing files and matlab scripts to look
1487       at the output and compare it with that of global_ocean.cs32x15.)
1488    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1489       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1490       to conform to the common rule.
1491    o check-in the first version of the coupler + interfaces for multi-components
1492       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1493       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1494       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1495       - ocean and atmos. share the same horizontal grid (no interpolation).
1496       - exchanges between component and coupler is done in forward_step
1497    o new verification experiment, cpl_aim+ocn:
1498       coupled ocean - AIM atmosphere on cs32 grid.
1499    
1500    checkpoint52d_pre
1501    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1502    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1503    
1504    checkpoint52c_post
1505    o Fixing OPTIONS files for use of exf:
1506      - ALLOW_ECCO not needed
1507      - ECCO_CPPOPTIONS.h should not be included from
1508        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1509        as has been the case in the past
1510      - All cal/exf related options are currently set in
1511        single header file. Should remain so until we
1512        agree on a consistent new policy.
1513    o Removed all CPP options for cal package.
1514      cal has no more CPP options.
1515    o modified STOREs in GAD_ADVECTION
1516    o corrected key comp. for passkey
1517    
1518    checkpoint52b_post
1519    o new version: "thsice" of thermodynamic sea-ice pkg:
1520     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1521     - modify fluxes but do not change theta directly;
1522     - light cleaning of bulk_force pkg (still needed with thsice).
1523     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1524       + output_thsice.txt to test thsice & bulk_force pkgs.
1525    o put back grid & coriolis monitor output.
1526    checkpoint52b_pre
1527    
1528    o call "do_the_model_io" at the beginning (=> dump initial state)
1529    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1530    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1531      (need info on NUMBER_OF_PTRACERS)
1532    o missing PTRACERS headers in some routines
1533    o default tamc.h in pkg/autodiff supposed to crash
1534      to ensure proper customization
1535    
1536    checkpoint52a_post
1537    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1538      - moved surfaceTendencyTice from pkg/seaice to main code
1539      - subroutine FREEZE_SURFACE now limits only surface temperature
1540        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1541        => new output.txt for global_ocean.cs32x15 & global_with_exf
1542      - keep the old version of FREEZE for backward compatibility;
1543        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1544      - corresponding modifs for TAF directives
1545    o added surface flux output variables to TIMEAVE_STATVARS
1546    o time-averaged output for pkg/ptracers
1547    o fix problem with ECCO-related divided adjoint
1548      snapshot file was missing some ad-variables,
1549      but no warning issued by TAF
1550    
1551    checkpoint52a_pre
1552    o some bug fixes for #undef REAL4_IS_SLOW
1553    
1554    checkpoint52 = ecco_c52_e35
1555    o after testing adjoints of checkpoint51u_post
1556    
1557    checkpoint51u_post
1558    o this is the post-merge tag of the ecco-branch
1559      (needs another clean checkout and re-testing)
1560    o various natl_box_adjoint configs and results
1561      but no input fields
1562    o obcs adjoint not yet merged!
1563    o adding ECCO global 1x1 and 2x2 degree configs
1564    o updated/extended some store directives for seaice
1565    o pkg/ecco now containes ecco-specific part of cost function
1566    o top level routines the_main_loop, forward_step
1567      supersede those in model/src/
1568      previous input data.cost now in data.ecco
1569      (new namelist ecco_cost_nml)
1570    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1571    
1572    checkpoint51t_post
1573    o this is the pre-merge tag of the ecco-branch
1574    
1575    checkpoint51s_post
1576    o cleanup: removed various obsolete #define-s
1577    o pkg/grdchk
1578      - renamed 'ph-grd 3' to 'grad-res'
1579      - merged from ecco-branch
1580        (remaining bug fixes for obcs gradient checks)
1581      - additional high-precision output for testreport
1582        (grep for 'precision_grdchk_result')
1583    
1584    checkpoint51r_post
1585    o cleaned up or removed CPP_OPTIONS.h files
1586    o updated results for some of the tests to reflect the new
1587      optfiles (-ieee: -O0 instead of -O3)
1588    
1589    checkpoint51q_post
1590    o cd_code:
1591      - moved cd_scheme.F -> cd_code_scheme.F
1592      - separate read_checkpoint from cd_code_ini_vars.F
1593      - separated cd_code part from write_checkpoint
1594      - updated AD_SOURCE, generated .flow
1595      - added CD_CODE_VARS.h to the_main_loop
1596      - Moving cd_code specific store dir.s to pkg/cd_code
1597    o ctrl package totally restructured
1598      - pack/unpack now optional and decoupled from
1599        xx_/adxx_ I/O
1600      - ctrl_pack/unpack cleaned
1601        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1602      - confined inclusion of AD_CONFIG.h to where necessary.
1603    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1604    
1605    checkpoint51p_post
1606    o create initial cd_code package
1607      - WARNING: the initialization of fields within packages
1608        is broken because INI_FIELDS (where READ_CHECKPOINT is
1609        called) is called *before* PACKAGES_INIT_VARIABLES.
1610        This seems to be backwards since
1611        1) its important to initially zero the entire field including
1612           the "halo" region
1613        2) zeroing needs to be done *before* reading pickup info
1614           and the pickup call might or might not happen in any
1615           particular run
1616      - this needs an overhaul for R2
1617    o cleanup verification/*/code/GMREDI_OPTIONS.h
1618    o cleanup testreport
1619    
1620    checkpoint51o_post
1621    o bringing AD-related verif's up to date with genmake2
1622      - carbon/
1623      - global_ocean.90x40x15/
1624      - hs.94.1x64x5/
1625      - (front_relax/ )
1626    o (more) consistent directory structure for AD-related verif.'s
1627    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1628    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1629    o bug fix in find_alpha.F for MDJWF:
1630      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1631        change rho -> rho-rhoConst
1632      - replace call find_rho to find_rhonum
1633    o initialisation of rFlx extended to full array (required by TAF)
1634      and shifted to thermodynamics
1635    o removed PTRACERS.h in ptracers routine
1636    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1637    o Correcting initialisations for fVerU, fVerV.
1638    o helping TAF to recognize dependency on kUp for
1639      fVerU, fVerV
1640    o Replacing delZ by delR in pkg/ctrl/
1641    checkpoint51o_pre
1642    
1643    o undid all of cp51 pending some cleanups and discussion
1644    o added the [#include "AD_CONFIG.h"] statement to all files that need
1645       it for adjoint/tl #defines
1646     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1647     o removed tools/genmake since it no longer works
1648    
1649    checkpoint51n_post
1650    o modifications to make FREEZE flux visible to pkg/kpp
1651      - moved surfaceTendencyTice from pkg/seaice to main code
1652      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1653      - subroutine FREEZE now limits only surface temperature
1654        (this means new output.txt for global_ocean.90x40x15,
1655         global_ocean.cs32x15, and global_with_exf)
1656    o added surface flux output variables to TIMEAVE_STATVARS
1657    
1658    checkpoint51n_pre
1659    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1660    o added [#include "AD_CONFIG.h"] to all files that use the following
1661      defines:
1662      - ALLOW_ADJOINT_RUN
1663      - ALLOW_TANGENTLINEAR_RUN
1664      - ALLOW_ECCO_OPTIMIZATION
1665    
1666    checkpoint51m_post
1667    o incorporating changes to get TAMC/TAF working in genmake2
1668      - added new TAMC/TAF targets to the Makefile
1669      - various cleanups related to package handling
1670      - these changes should have no impact on the forward model
1671    
1672    checkpoint51l_post
1673    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1674     - faster algorithm for cal_addtime.F
1675     - higher precision arithmetic, where needed
1676     - pkg/exf *startdate variables changed from calendar date to
1677       model integration time
1678    
1679    checkpoint51l_pre
1680    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1681    o enable to apply restoring on S & T only in a latitude band.
1682    o update output (external_forcing_surf modif. change truncation errors)
1683       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1684    
1685    checkpoint51k_post
1686    o change default to: useNHMTerms=.FALSE.
1687     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1688       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1689     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1690        exp1, ideal_2D_oce
1691     - change data file of oceanic exp (leave the results unchanged for now)
1692       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1693    o set gravitySign automatically according to the vertical coordinate used
1694      (and change sign: back to "logical" value: +1 when R increases downward)
1695    o added an include barrier to the default CPP_OPTIONS.h and
1696      removed the #include "PACKAGES_CONFIG.h" from it
1697    o fix a bug in mom_fluxform (from chk51j_post)
1698    
1699    checkpoint51j_post
1700    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1701    o adjusted some flow directives (dynamics, thermodynamics)
1702    o added cubed-sphere case to test cost function
1703    o heckpoint_lev?_directives.h now include
1704      pkg-specific directives, whenever those are enabled.
1705    o Moving pkg-specific flow directives to corresponding pkg
1706      Moving pkg-specific differentiation list to corresponding pkg
1707      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1708      ---> conventions are
1709           - pkg_ad.flow
1710           - pkg_ad_diff.list
1711           - pkg_ad_check_lev?_dir.h
1712    
1713    checkpoint51i_post
1714    o merge of the branch-genmake2
1715      - knowingly breaks the older genmake
1716      - automatic generation of all ALLOW_${PKG_NAME} defines
1717      - new testreport supersedes older testscript
1718    o large number of package inclusion and header cleanups
1719    checkpoint51i_pre
1720    
1721    o new output for adjoin of global ocean vector invariant
1722    o fix for checkpoint of thermodynamic seaice and bulk_force
1723    o Steph gchem various cleanups
1724    
1725    checkpoint 51h_pre
1726    o fixed some single quotes
1727    o modify gchem pkg to be more versatile
1728    o modifications to clean up dic pkg
1729    o add pkg/cfc
1730    
1731    checkpoint51g_post
1732    o provide links for ARPACK and ADM*TLM
1733    o start removing verification/vero/
1734    o update AD-related stuff
1735      (in particular some IF-statements in model/src/ routines)
1736    o adding to verification/global_ocean.90x40x15/ adjoint of
1737      vector invariant setup
1738    
1739    checkpoint51f_post
1740    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1741    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1742      of tracer Green's fucntions for ocean inversion project.
1743    
1744    checkpoint51f_pre
1745    o Added on-the-fly spatial interpolation capability
1746        "USE_EXF_INTERPOLATION" to pkg/exf.
1747      - This is a temporary Cartesian-grid hack until
1748        the super-duper ESMF coupler becomes available.
1749      - See verification/global_with_exf/README for usage example.
1750      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1751        flags and modified pkg/seaice accordingly.
1752    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1753        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1754        non-local transport term.
1755    
1756    checkpoint51e_post
1757    o pkg/mom_vecinv:
1758      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1759      - add time-ave diagnostic of vorticity advection.
1760    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1761    o atmospheric geopotential: - include water vapor effect;
1762                                - use p^kappa in p* scaling.
1763    o land pkg: read initial state from files.
1764    o AIM : add stratospheric drag in the upper level
1765    
1766    checkpoint51d_post
1767    o change function ILNBLNK (=> last non-blank char.) to return zero
1768      (instead of the string length) when the string. char is empty
1769    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1770    o modif's to restore TAMC compatibility
1771      - avoid "_d" constructs in PARAMETER declarations
1772      - avoid interrupting lines by comment lines
1773    o Use cluster local disks for purely local I/O
1774      vs. globally visible disks needed for ctrl stuff
1775      (merged from ecco-branch)
1776      - new active_file_loc... and mdsio_..._loc routines
1777      - affected packages: autodiff, ctrl, grdchk, mdsio
1778    
1779    checkpoint51c_post
1780    o introducing integer flag debugLevel
1781      - debLevZero: suppress all output
1782      - debLevA: standard
1783      - debLevB: equivalent to current debugMode=.TRUE.
1784    o introducing pathname variable mdsioLocalDir for mdsio
1785      that can be specified at runtime
1786      (relevant for cluster I/O to local disk)
1787    `
1788    >>>checkpoint51b_post
1789    adjoint of ptracers
1790    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1791    o extended state in checkpoint_lev?, etc.
1792    o alternative ctrl/cost with tr1 or ptracer
1793    o new comlev1_bibj_ptracers
1794    o new ptracers.flow
1795    o made ptracers_forcing same as external_forcing_s
1796    o added verification for adjoint with ptracers
1797      - adm. grdchk fail so far
1798      - tlm. grdchk OK
1799      - checked tapelev/comlev recomputations: OK
1800    <<<checkpoint51b_pre
1801    
1802    checkpoint51a_post
1803    o added code for biogeochemistry package
1804      - new pkgs: dic, gchem
1805      - new subroutine in ptracers
1806    o modify code for biogeo packages
1807      - in model/src and pkg/ptracers
1808    
1809    checkpoint51
1810    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1811      - autodiff, ctrl, exf, grdchk, seaice
1812      kept separate packages
1813      - cost, ecco, obcs
1814    o updating verification/internal_wave, verification/lab_sea
1815      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1816    
1817    checkpoint50i_post
1818    o Preparing next differentiable checkpoint and sync
1819      of MAIN vs. ecco-branch
1820      - 1st step: this one is differentiable
1821      - 2nd step: next(! not this) checkpoint will have updated packages
1822                  from ecco-branch)
1823    
1824    checkpoint50h_post
1825    o new package "land": provide surface BC for AIM.
1826    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1827    o AIM: use true log-P extrapolation for near surface temp (= as in
1828        F.Molteni paper) ; update aim.5l_cs output.
1829    o New variable in PARM03 for more flexible pickups
1830    o somewhat cleaned package initialisation sequence for
1831      ctrl/ cost/ ecco/ in packages_... routines
1832    
1833    checkpoint50g_post
1834    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1835      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1836      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1837        made the default because of faster convergence than ADI
1838    
1839    checkpoint50f_post
1840    o exf totally restructured
1841      - replaced all exf_set_ routines by one generic exf_set_gen.F
1842        and made sure it's still differentiable
1843      - split exf_getffields.F into new exf_bulkformulae.F
1844      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1845      - updated adjoint/makefile and relevant verif. accordingly
1846    
1847    checkpoint50f_pre
1848     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1849          + change Evap over land. (update aim.5l_cs output)
1850     o added missing .cvsignores and made uniform across expts
1851     o changed configuration of tidal_basin_2d expt
1852     o added pkg/debug functions for tracing code in fatal crashes
1853     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1854     o new fn in pkg/monitor to stop model if solution grows too big
1855     o removed lots of single quotes from comments
1856    
1857    checkpoint50e_post
1858    o make KPP work with PTRACERS
1859     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1860       nearly a copy of kpp_transport_s
1861     - there is no analogue to SurfaceTendencyS, so I have to use
1862       gPtr(of the surface layer) instead
1863    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1864    checkpoint50e_pre
1865    
1866    checkpoint50d_post
1867    o change kpp output from multiple-record state files to single-record state
1868      files analogous to write_state.F
1869    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1870      analogous to the cg2d-related output.
1871    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1872      so that writing to internal file fn (with length 512) fails.
1873    checkpoint50d_pre
1874    
1875    checkpoint50c_post
1876    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1877    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1878    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1879    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1880    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1881    
1882    checkpoint50c_pre
1883    Merging from release1_p13:
1884    o bug fix for pkg/seaice dynamic solver
1885    o Added SEAICE_initialHEFF to pkg/seaice
1886    
1887    checkpoint50b_post
1888    o store u*,v* in gU,V instead of in guNm1,gvNm1
1889    o in order to put the momForcing out of the Adams-Bashforth:
1890      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1891      to timestep.F
1892    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1893    o re-generate output for highly sensitive test-exp:
1894       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1895    
1896    checkpoint50b_pre
1897    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1898    o corrected CPP option mismatch in exf_Bulk... functions for case
1899      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1900    
1901    checkpoint50a_post
1902    o Bug fix for merging between c50 and KPP.
1903      ikey was passed from thermodynamics to kpp_calc via
1904      common block rather than being recomputed in kpp_calc,
1905      in contradiction with new key itdkey.
1906      New key ikppkey created, and tamc.h headers updated.
1907    
1908    checkpoint50
1909    - 2nd step of merge with ecco-branch:
1910      merge changes in ecco-branch back into main trunk
1911    - bug fix in find_alpha
1912    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1913    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1914    - merged some sliced AD support routines
1915    
1916    checkpoint49
1917    merged from ecco-branch:
1918    o exf:
1919      - Enable initialisation of forcing fields to constant
1920        (runtime) values.
1921      - in exf_getffields.F
1922        Reduce i-/j-loop to interior domain, discarding overlaps.
1923        That also fixes wrong TAF-key computations for key_1, key_2
1924        with bulf formulae.
1925      - exf_init.F modify #ifdef for exf_init_evap
1926      - exf_getffieldrec.F, ctrl_getrec.F
1927        The following INT-usages are not safe:
1928          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1929          fldcount = int(fldsecs/fldperiod) + 1
1930        and were modified.
1931    o autodiff: checkpoint_lev...
1932      - updated storing for bulk formulae (some arrays were missing)
1933      - added state for seaice package
1934      - synchronized with main branch
1935    o DIVA:
1936      Modif.s in
1937      - the_main_loop.F
1938      - the_model_main.F
1939      and added cost_final_restore.F cost_final_store.F
1940      o With these changes, it is possible to fully separate
1941        the first forward run to compute the cost function (mdthe_main_loop)
1942        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1943        into separate model executions.
1944        This enables better tuning of DIVA to given queue sizes.
1945      o Loss of cost function value in consecutive DIVA runs is
1946        fixed by storing to 'costfinal' file.
1947      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1948        beginning/end of adjoint integration is accounted for.
1949      The current changes apply to TAF-1.4.26.
1950      TAF has one remaining bug, requiring one manual change
1951      (see MITgcm manual).
1952    o cal: synchronized between MAIN and ecco-branch
1953    
1954    checkpoint48i_post
1955    o Changes to restore differentiability of code w.r.t. previous tag
1956      (mostly adding new routines to make list and replacing
1957      pressure by totPhiHyd).
1958    o Updated and merged grdchk package
1959      - has both ADM and TLM checks
1960      - works for single- and multi-proc.
1961      - output cleaned
1962      - worked successfully for parallel DIVA
1963    o genmake:
1964      - Adding -platform=SP4
1965      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1966    o Modif. for DIVA:
1967      ctrl_unpack should not be called in intermediate DIVA interval.
1968      (similar thing would apply for active files such as
1969      tbar, sbar, psbar, which should not be reinitialised;
1970      only relevant for ecco-branch)
1971    
1972    checkpoint48h_post
1973    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1974    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1975    o Added SEAICE_initialHEFF to pkg/seaice
1976    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1977    
1978    checkpoint48g_post
1979    --- EOS:
1980    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1981      store total Potential in totPhyHyd for diagnostics & EOS.
1982    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1983    --- Pressure/geopotential gradient:
1984    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1985    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1986      ( changes results of global_ocean_pressure )
1987    o NLFS + z-coord.: add eta*Rho' contribution.
1988    o accurate phiHyd when using interface-W at the middle between 2 centers
1989     ( changes results of ideal_2D_oce )
1990    o includes r* 2nd term in potential gradient.
1991    
1992    checkpoint48f_post
1993    Merging from release1_p12:
1994    o Modifications for using pkg/exf with pkg/seaice
1995      - improved description of the various forcing configurations
1996      - added basic radiation bulk formulae to pkg/exf
1997      - units/sign fix for evap computation in exf_getffields.F
1998      - updated verification/global_with_exf/results/output.txt
1999    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2000      (SBO) core products, including oceanic mass, center-of-mass,
2001      angular, and bottom pressure (see pkg/sbo/README.sbo).
2002    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2003      to avoid negative values in shallow regions.
2004      - updated verification/natl_box/results/output.txt
2005      - updated verification/lab_sea/results/output.txt
2006    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2007    o Added useSingleCpuIO option (see PARAMS.h).
2008    o Updated useSingleCpuIO option in mdsio_writefield.F to
2009      work with multi-field files, e.g., for single-file pickup.
2010    o pkg/seaice:
2011      - bug fix in growth.F: QNET for no shortwave case
2012      - added HeffFile for specifying initial sea-ice thickness
2013      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2014    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2015      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2016    o pkg/seaice:
2017      - adjoint-friendly modifications
2018      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2019    
2020    checkpoint48e_post
2021    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2022    o dynamics: change definition of computational domain & adapt mom_fluxform
2023      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2024    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2025        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2026        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2027        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2028        inverted_barometer solid-body.cs-32x32x1
2029      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2030    
2031    checkpoint48d_post
2032    o in preparation for r*:
2033     a) use pre-computed gradient of hydrostatic potential:
2034        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2035     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2036        => affects results of glob_oce_pressure (different truncation error)  
2037      update output.txt of ideal_2D_oce & global_ocean_pressure
2038    
2039    checkpoint48d_pre
2040    o in preparation for r*:
2041      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2042      pass the 2 comp. of the grad. as arguments to momentum S/R.
2043      but for the moment, only used if it does not change the results.
2044    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2045    
2046    checkpoint48c_post
2047    Modifications in treatment of initial flux forcing controls
2048    to avoid extra storing of flux fields.
2049    
2050    checkpoint48c_pre
2051    o Added tidal_basin_2d experiment (currently 1D!)
2052    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2053    
2054  checkpoint48b_post  checkpoint48b_post
2055  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
2056   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)

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