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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.693 by jmc, Thu Jul 6 00:33:33 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    checkpoint58k_post
8    o testreport:
9     - always build in dir. "build" (if not there, mkdir build instead of building
10       & running in input)
11     - run in dir run (if it exists), in build otherwise.
12     - call prepare_run (if input/prepare_run exists)
13     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
14    o pkg/exf modifications to interpolation and rotation routines for more
15       reasonable treatment of North Pole singularity: for tracers North Pole
16       value is set to northernmost zonal-mean value, for zonal velocity it is
17       set to zero, and for meridional velocity it is set to northernmost value.
18    o pkg/exf/exf_check_range.F
19     - add tile index to diagnostics and move stop statement to the very
20       end of the routine.
21    o pkg/diagnostics: (diagnostics_main_init.F)
22      define title of isomorphic variables according to the current config.
23    o pkg/thsice with pkg/seaice dynamics:
24    - fix domain of computation (interior only, required for exf) and do exchanges
25    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
26    o towards a standard way of dealing with multi-threading in MONITOR
27      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
28    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
29       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
30    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
31    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
32    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
33       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
34    o tracer advection:
35     - clean-up and simplify calc_common_factors.F
36     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
37       advection subroutine (but still not used within DST advection S/R)
38    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
39    
40    checkpoint58j_post
41    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
42      from file (collects calls previously in FORWARD_STEP)
43    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
44    o adjoint store dir. adjusted accordingly
45    o genmake2
46      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
47    
48    checkpoint58i_post
49    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
50      on wind stress (SEAICEstressFactor defaults to 1.)
51    o Total number of Timers is finite (<=40): comment out 2 non-essential one
52      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
53    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
54      on CS-grid: no longer loosing mass.
55    o exf & curvilinear-grid: no longer modify longitude xC & xG.
56    o pkg/ggl90: fix sloppy output and fix a bug
57    o pkg/seaice: added SEAICEuseEVPpickup parameter
58      - Set to false in order to start EVP solver with
59        non-EVP pickup files when using SEAICEuseEVP
60      - fix sign error in diffusion in seaice_calc_rhs
61    
62    checkpoint58h_post
63    * Modifications for bottom topography control
64      o replace hFacC by _hFacC at various places
65      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
66      o add non-self-adjoint cg2d_nsa
67      o update autodiff support routines
68      o re-initialise hfac after ctrl_depth_ini
69      o works for 5x5 box, doesnt work for global_ocean.90x40x15
70    * Adding verification for 5x5 box (4-layer) bottom topography control
71    
72    checkpoint58g_post
73    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
74       used for mean seasonal cycle, mean diurnal cycle); add an example
75       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
76    o pkg/ggl90:
77      - add parameter (minimum surface kinetic energy)
78      - fix bug (avoiding division by zero)
79    o couple pkg/thsice to pkg/seaice:
80      - modify advection in seaice to accomodate new scalar fields to be advected
81      - only muliDimAdection scheme work with seaice/thsice
82      - mapping of thsice-variables to seaice-variables, back and forth
83      - does not break the verification experiments, but does not give the
84        desired results either
85    o pkg/seaice
86      - make (default) second order advection a bit less confusing?
87    
88    checkpoint58f_post
89    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
90      to pkg/seaice):
91      - new routines thsice_map_exf and thsice_get_exf provide the interface
92      - add an additional formal parameter to thsice_solve4temp
93    o pkg/exf:
94      - add new fields wspeed, snowprecip (to be able to couple to thsice)
95      - correct Stefan-Boltzmann constant
96      - new parameter for longwave surface emittance
97      - separate some stuff from exf_bulkformulae into new routines  
98        exf_radiation, exf_wind
99      - add new parameters and constants: longwave emissivity for ocean, ice
100        and snow, evaporation parameters over ice
101      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
102        either wind from stress or stress from wind
103    o pkg/thSIce:
104    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
105    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
106       and THSICE_CALC_THICKN
107    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
108    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
109      to make debugging easier.
110    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
111    o pkg/bulk_force:
112      - clean-up comments and parameters ;
113      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
114    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
115      generate new output for test-experiment: aim.5l_cs.thSI
116    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
117      testreport accordingly
118    
119    checkpoint58e_post
120    o SEAICE_CGRID adjoint done
121    o R_STAR adjoint implemented.
122      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
123      * need to sort out init. of h0facc, etc.
124    o Make pkg/profile fully independent of ecco,cost, etc. stuff
125      to be able to use it in pure forward.
126    
127    checkpoint58d_post
128    o upgrade simple test-experiment to tutorial example:
129     step.1: duplicate the experiment and (step.2) will remove the old copy.
130      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
131      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
132      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
133      tutorial_global_oce_biogeo    <- copy of dic_example
134      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
135      tutorial_plume_on_slope       <- copy of plume_on_slope
136      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
137      tutorial_global_oce_optim     <- empty for now (David ?)
138      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
139     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
140    o correct a sign problem in cost_scat.F
141    o obcs and ptracers: fix boundary conditions for advections schemes
142      with larger stencil
143    o thsice adjoint: start
144    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
145      completeness
146    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
147      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
148    o ptracers adjoint:
149      * avoid extensive recomputatations
150      * fix missing re-init. of gptr (missed by TAF)
151    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
152      me to turn off the excessive output to STDOUT that this package produces
153    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
154      and add those terms in Vector-Invariant formulation.
155    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
156      if the control period (xx_hfluxperiod etc) is 0
157    o in profiles pkg, clean routines and fix details
158    o in ecco pkg, reading ssh data:
159      fix problem in case the model does not start at iter0=0
160    o fix mnc-pickup/restart for ptracers
161    o new package prifiles:
162      code to compute profile-based cost by Gael Forget
163      (modifs in ecco, ctrl, autodiff)
164    o Benign bug fix in initialization (spotted by M. Mazloff) of
165      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
166    
167    checkpoint58c_post
168    o adjoint: finish NLFS adjoint and provide reference output in
169      verification/global_ocean.90x40x15/results_ad_nlfs
170    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
171      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
172      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
173      with SEAICE_CGRID defined.
174    o move calendarDumps from "data" to "data.cal" and clean-up the code
175      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
176    o add useEXF & useCAL flags (for now, set in hard-coded way)
177    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
178      (were missing in NH mode, and wrong in quasihydrostatic mode).
179      waiting for Chris updated version of calc_gw to add those CALLs.
180    o fix bug in quasihydrostatic S/R ;
181      add a test for this option: global_ocean.90x40x15.qshyd
182    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
183      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
184    o add on/off flag useOffLine for package OFFLINE
185    o seaice:
186      - modify advection so that it works also on the C-grid
187      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
188        problem in multi-tile runs with C-grid
189      - add flags for clipping ice velocities and/or masking solver forcing
190      - fix drag (ocean on ice) formulation and a bug that caused noise in the
191        C-grid solver
192      - added a few comments to seaice_diffusion.F
193      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
194        are now exclusive)
195      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
196        required re-ordering the code a little:
197       + make DAIRN global variable (defined in SEAICE)
198       + move computation of the viscosities eta and zeta into a new separate
199         routine (because I need to recompute them in seaice_ocean_stress.F)
200    
201    checkpoint58b_post
202    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
203      update output.txt of exp. aim.5l_cs.thSI
204    o various mnc cleanups and improvements:
205      + shrink lookup tables by factor of ~4
206      + better error reporting when running out of lookup space
207      + able to handle longer path/file names (up to 500 chars)
208    o adjoint:
209      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
210      - TBD: "hidden" mom_vecinv recomp. in dynamics
211    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
212     (allow to differentiate between forcing components using new integer flags:
213      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
214     and add new flag to put Dissipation tendency out of Adams-Bashforth.
215    o ecco
216      - enable trend removal from SSH anomaly obs.
217    o adjoint
218      - a fix for PmEpR when #undef EXACT_CONSERV
219      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
220      - try to fix "hidden" recomp. in forward_step for NLFS
221        (NLFS seems broken sometimes after I checked it in)
222    o seaice:
223     - add c-grid version of the dynamic solver:
224       + three new routines that are the c-grid substitute lsr, dynsolver
225         and ostres
226       + put a few fields that were local to dynsolver into global common
227         blocks, so that I can move the computation of stresses etc into
228         seaice_lsr (saves coding but may break the adjoint).
229     - replace more hardwired parameters by runtime parameters
230     - add ice masks that mask the rhs of the implicit solvers where there
231       is no ice (commented out in seaice_dynsolver, because i am not sure
232       if this works properly), eventually this should replace the clipping
233       of ice velocities in seaice_dynsolver to +/-40cm/s.
234    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
235      include it only where its needed
236    o move balancing of fluxes before the call of external_forcing_surf
237    o seaice:
238      - correct units of turning angles (now they are really in degrees)
239      - move computation of GWATX/Y out of main routine into dynsolver
240      - initialize GWATX/Y in seaice_init
241    o Apply mask on Fresh-Water flux (needed for SSH forcing).
242      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
243    o seaice: add runtime flags for turning angles (default to zero)
244    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
245      and trend from exf forcing and ctrl control adjustments
246    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
247      (since checkpoint57x_post)
248    o change the default rotation period to 86164.s = the Earth rotation
249    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
250      and based on a reference stratification. Tested within hs94.cs-32x32x5.
251    o seaice advection: add code for choosing between the default (2nd order
252      central differences) and multiDim advection schemes provided by
253      pkg/generic_advdiff
254    o seaice:
255      - removed all references to SEAICE_GRID.h fields from
256        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
257        (cubed-sphere configuration will change a little)
258      - grid computations in seaice_init are obsolete now.
259      - cleaned up code a little so that is easier to read (hopefully).
260      - added new (better?) discretizations of default advection and diffusion
261        (turn on with SEAICEuseFluxForm)
262      - replace 1 in 3d global fields by kSurface in growth.F
263      
264    checkpoint58a_post
265    o seaice:
266      - bug fix in advect.F
267    o shelfice:
268      - separate shelfice load anomaly from pload (breaks with time
269        dependent forcing), => introduce constant field shelficeLoadAnomaly.
270        Its default is 0., but it may be computed more cleverly from (unknown)
271        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
272        done offline. A good approximation of the pressure load anomaly is
273        necessary to avoid large initial adjustment processes underneath
274        deep-reaching shelfice.
275      - small fix in ISOMIP shelfice_thermodynamics
276      - add more sophisticated thermodynamics of Hellmer (1989), this is
277        now the default
278      - give a few constants more intuitive names
279    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
280      if bulk formulae are used in long integration (especially EmPmR). Turn
281      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
282      if balancePrintMean, the imbalance that is substracted is printed to
283      STDOUT.
284    o fix bug (typo) in obcs_apply_eta.F
285    o add a new package shelfice which enables us to model the circulation
286      underneath shelf-ice with draughts of hundreds of meters.
287     - works
288     - to do: + include improved thermodynamics
289              + check whether kSurfC (from model/inc/SURFACE.h) can be used
290                instead of new field kTopC
291              + can we use topoFile, Ro_surf and existing code in ini_depth.F
292                instead of new field R_shelfIce and new code in ini_depth.F
293                and ini_mask_etc.F?
294              + adjust vertical mixing schemes?
295    o seaice pkg:
296     - add a cpp-flag to include a simple formula for a salinity dependent
297       freezing point of sea water at the surface
298     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
299       meridional stresses are now different (and hopefully correct)
300    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
301       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
302       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
303    o pkg/diagnostics: add options and parameters for regional-statistics
304       diagnostics ; define regions by reading a region-mask from a file
305       (might add other options later)
306    o pkg/bulk_force:
307     - add option and parameters to use AIM surface-flux formulae.
308     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
309       others forcing fields (defined in PARM05, parameter file "data") are loaded
310       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
311     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
312     - use the right EXCH call for uwind,vwind (to work on CS-grid).
313     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
314       and parameters (note: calcWindStress replaces .NOT.readwindstress).
315     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
316    
317    checkpoint58
318    o add "--embed-source" option to genmake2 which, when the supporting
319      tools can be compiled (as determined by genmake2) will turn on the
320      embed_files package which then embeds the entire MITgcm source code
321      (*.[fFhc] + Makefile) used for the build within the executable
322      - requested by CNH but off by default
323      - adds a paltry <9MB to the mitgcmuv executable in most cases
324      - only writes the output when useEMBEDSRC in eedata is true
325    o clean up 3-dim. relaxation codes:
326      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
327      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
328      * Thanks to Tom Haine for testing!
329    
330    checkpoint57z_post
331    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
332      affects output (@ truncation level) of exp. plume_on_slope ; updated.
333    o fix the pickup behavior for obcs in combination with ptracers
334    o fix a bug in ptracers_external_fields_load
335    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
336      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
337    o transfered surface NH pressure to eta field (if exactConserv).
338    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
339         and update lab_sea output.txt file.
340    o completing 3-dim. relaxation code: additional term
341         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
342      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
343      * At compile time, in "EXF_OPTIONS.h" set
344          #define  ALLOW_CLIMTEMP_RELAXATION
345          #define  ALLOW_CLIMSALT_RELAXATION
346      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
347          tauThetaClimRelax3Dim = 15552000.0,
348          tauSaltClimRelax3Dim  = 15552000.0,
349      * 3 cases:
350          1) Use a constant-in-time 3-dim. field
351          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
352          3) Real-time relax. to time-evolving prescribed field
353    o Adding Laplacian-type smoothness constraint on
354      initial and boundary (forcing) controls (ic, bc)
355      * enable at compile-time via
356        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
357      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
358      * Absolute scale somewhat unclear so far
359      * no area weighting was included since no other cost term does so far
360    
361    checkpoint57y_post
362    First step for a NLFS adjoint
363    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
364    o new init. routines for calc_r_star, calc_surf_dr
365    o still need to deal with ini_masks_etc
366    o testreport seemed happy
367    checkpoint57y_pre
368    
369    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
370    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
371    o add new offset feature to offline pkg (plus minor cleanup)
372    o cfc fixes for final year of integration
373    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
374      be in GCHEM_OPTIONS).
375    
376    checkpoint57x_post
377    o fix testreport Pb in multiple test experiment.
378    o cleanup our namelist syntax in verification:
379      - make it more F95 standards compliant (some work still needed)
380      - allows the vast majority of our tests to work with gfortran
381    o Non-Hydrostatic:
382     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
383     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
384    o Allow to apply AB on T,S rather than on AB(gT,gS):
385     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
386     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
387       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
388     - need a "clever" read_pickup to restart from the other AB formulation
389    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
390    o remove some unused variables (reduces number of compiler warnings)
391    o adjoint
392      * Disable useVariableViscosity for adjoint for time being
393        (there are a number of extensive recomputations)
394      * Initialize certain variables needed for adjoint
395    
396    checkpoint57w_post
397    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
398                 fix the singleCpuIO RS version of MDSWRITEFIELD
399       and add a WARNING if using globalFiles=T with multi-processors.
400    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
401      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
402    o tracer advection scheme:
403      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
404       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
405       was not very convenient).
406      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
407       (further tests needed for the implicit DST & Flux-Limiter schemes).
408    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
409      and sRef for convenience, handy, when you want to initialize
410      ptracers in a large domain with a constant non-zero value. Also,
411      untangle ptracers_init.F a little.
412    
413    checkpoint57v_post
414    o change dome exp. to use variable viscosity in side-drag terms.
415    o remove all the files from the cfc_offline test since they are now
416      incorporated into tutorial_cfc_offline which has been producing
417      identical results for a few days of testing
418    o add new parameter: sideDragFactor to enable half-slip-side BC
419      and change side-drag S/R to use viscosity from mom_calc_visc
420      (can switch back by setting sideDragFactor=0.); affects results at
421      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
422       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
423    o vorticity & strain are now computed without masking, to account for
424      no-slip-side BC in variable viscosity calculation ; mask is applied
425      anyway later on, before computing advection/coriolis terms.
426    o modify exp4 to test new obcs support for reading from external files
427      and for passive tracers
428    o fix behavior of ptracers_monitor when monitor output is written to a
429      netcdf-file; still not independent of monitor.F (writes in the same
430      file).
431    o change default value of tRef (put a uniform, meaningful value for ocean
432      & atmos) and initialize sRef (was missing, as Martin mentioned).
433    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
434      to be proportional to enstrophy dissipation length.  Thus,
435       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
436      This is now consistent with Smagorinsky and with the manual.
437    
438    checkpoint57u_post
439    o OBCS and PTRACERS: add open boundary support for passive tracers
440      - either use homogenous (pseudo) v.Neumann conditions or prescribe
441        OB-values from file; this is not different from the way theta and salinity
442        are treated
443      - however, Orlanski-radiation conditions are not supported, and the model
444        will stop if you use pTracers and Orlanski at the same time.
445      - beefed up the rountine obcs_external_fields_load: now only those open
446        boundary values are overwritten with values from files for which there
447        are really files, otherwise the OB-fields remain untouched. This makes
448        it possible to use different OBs at different ends of the domain (as
449        with EXF)
450    o reduce number of exch calls in shap_filt (s2).
451    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
452      truncation level) 4/5 MLAdjust test results (11&12 digits match).
453    
454    checkpoint57t_post
455    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
456    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
457      same truncation, independent of the face number: affects affects several
458      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
459    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
460      note that biharmonic viscosity + no-slip was not tested in any experiment.
461    o fix bug in non-linear free-surf side-drag ; generate new output for
462      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
463    o make mnc honor the writeBinaryPrec flag for most kinds of output
464    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
465    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
466      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
467    o add brackets in multi-terms sum to get same truncation, independent of
468      the face number (manage to get exactly same value of gU,gV at the cs-edge)
469      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
470    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
471      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
472      a maximum grid-scale Reynolds number.  Also, changes all length calculations
473      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
474      Suggested values of viscosity parameters found in mom_calc_visc.
475      Many new viscosity diagnostics available.
476    
477    checkpoint57s_post
478    o Add clearing-house for viscosity calculations, mom_calc_visc and
479      correct numerous bugs in LeithD and Smagorinsky discretizations.  
480      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
481      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
482      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
483      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
484      The Strain-Tension form is now called with useStrainTensonVisc=.true.
485      ViscAhStrain and viscAhTension are now retired.
486    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
487    o In response to JMC's bug report, genmake2 now ignores any soft-links
488      that it finds in the *current* directory when searching for files.
489      Soft-links found in any other source directories will still work as
490      they did before.
491    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
492      a C routine to unlimit the stack size
493    o mnc-ify pkg/aim snapshot vars
494    o mnc-ify pkg/land as requested by Daniel
495    o various changes to mnc including:
496      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
497      - output can now be grouped so that all files within a group
498          change the ITER portion of their names in lock-step together
499      - can now read ("global") PER-FACE (in addition to PER-TILE) files
500          and works with both EXCH1 and EXCH2 (but needs more testing)
501      - writing works for all verification test cases w/ g77 on Linux
502    
503    checkpoint57r_post
504    o make MNC variable initialization happen earlier
505    o add diagnostics for (almost) each term of the momentum Eq.
506    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
507    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
508    o remove MINIMAL_TAVE_OUTPUT option ;
509      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
510    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
511      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
512    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
513    o add time-dependent SST, SSS control
514    o cost terms in ecco/ modularized (new cost_generic.F)
515    o cost_averages routines are modularized (new cost_averagesgeneric.F)
516    o new infrastructure for seaice model vs. obs misfits in seaice/
517      * driver from the_main_loop.F is seaice_cost_driver.F
518      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
519      * gradient check in Exp. 6a of natl_box_adjoint/
520    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
521      (see README file)
522    
523    checkpoint57q_post
524    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
525    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
526      - bug was reported by Jean-Michel and Ian Fenty
527    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
528      update exp. cpl_aim+ocn output.
529    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
530      Needed for high-res. runs with large global files
531      to be able to limit tapelev size
532    o Changed some tests for adjoint:
533      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
534      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
535      * global_ocean.90x40x15/ back to default 3-level checkpointing
536    o Modifications to enable scripted COMMON to MODULE conversion
537      * verification/OpenAD/code/ has necessary scripts and description;
538      * converts, compiles and runs successfully;
539    
540    checkpoint57p_post
541    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
542    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
543      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
544    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
545    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
546      (was already the case for dissipation with mom_vecinv,
547       and also the case for grad.PhiHyd when staggered-timeStep)
548      This will allow to put dissipation out-off the AB time-stepping.
549     Unfortunately, affects truncation error. Update output of exp. that "fails"
550      (cg2d matching number) and leave the others for later: front_relax(10),
551      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
552      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
553    
554    checkpoint57o_post
555    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
556      (2) its ready to be documented during the 20050801 DocFest
557    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
558      for ideal_2D_oce and lab_sea on linux_ia32_g77
559    o set to #undef CTRL_SET_OLD_MAXCVARS_30
560      in global1x1_tot/code_seaice_adj to access indices 32, 33
561      (worth another tag)
562    
563    checkpoint57n_post
564    o adding precip control xx_precip 32
565    o adding swflux control xx_swflux 33
566    o Replacing 10 forcing penalty cost routines by 1 generic.
567    o Implementing partitioning in time-mean and variable adjustment
568      for atmos. state.
569    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
570    o in natl_box_adjoint:
571      * updated exp 1 to 10
572        (but does not have time-mean vs. variable split results yet)
573    o updated global1x1/*_seaice_adj/
574      to incorporate latest changes
575    o enable useSingleCpuIO for mdsio vector routines
576      (applies in particular to tapelev I/O)
577    o removed inefficient K-loop in all active_file*control*.F
578    
579    checkpoint57m_post
580    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
581      and advect_cs (use EXCH-2 and standard cs-32 grid files).
582    o pkg/exch2: filling of face-corner halo regions is optional
583      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
584    
585    checkpoint57l_post
586     tag before updating tutorials (pre-release-2)
587    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
588       for output and interpolation of input fields onto model grid)
589    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
590       Affects results of exp. rotating_tank ; update output.txt.
591    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
592          and taking the square quantity and/or using a fraction-weight field.
593    o fix aim_diagnostics_init.F mate numbers.
594    o add mnc output capability to diagnostics/diagstat and update
595      our cvsignore files for the ACSII output generated
596    
597    checkpoint57k_post
598    o lab_sea now uses diagnostics package and provides a suite of
599      new EXF diagnostics output.
600    
601    checkpoint57j_post
602    o exf
603      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
604        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
605        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
606      * extended diagnostics output
607        - now includes all EXF variables
608        - hs, hl moved to common block
609        - separate S/R for diagnostics, called after ctrl vector is added
610        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
611        - EXFqnet contains true Qnet (i.e. includes qsw)
612      * updated verif. lab_sea, global_with_exf
613      * Rearranging hflux (exf_mapfields -> exf_getforcing)
614        to ensure that diagnostics sees a true EXFqnet
615    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
616    o diagnostics pkg: change pointers so that 1 diagnostic can be used
617      several times with different frequencies.
618    o mnc-ify the thsice package as requested by Daniel Enderton
619      - the monitor--MNC output needs work
620      - many attributes need to be added (most are currently blank)
621    o mnc-ify theaim_v23 package as requested by Daniel Enderton
622      - many attributes need to be added (most are currently blank)
623    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
624    o add Sadourny like discretization to the 4th.O vorticity advection scheme
625    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
626      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
627         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
628    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
629     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
630    
631    checkpoint57i_post
632    o Diagnostics package was changed: diagnostic allocation is now deactivated
633      by setting an empty file name in the namelist (used to be by setting 0 frequency)
634    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
635      add 1rst Order upwind vertical Shear.
636    o add a quick fix for A/B checkpointing in OFFLINE mode
637    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
638      end-run around the C/Fortran linking horror in eesup/src/timers.F
639    o added pkg/runclock: allows user to terminate run based on wall clock
640    o added non-hydrostatic scaling parameter: nh_am2
641    o pkg/my82: futile attempt to make results compiler-independent by adding
642      some "_d 0", etc. no effect.
643    o for mnc output, fill the 'T' coordinate var with myTime and create a
644      separate 'iter' variable for iteration count
645    o pkg/diagnostics:
646      add new capability: output of Global/Regional & per-level statistics ;
647      tested against monitor output (including land & thSIce) on various exp.
648    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
649    
650    checkpoint57h_done
651      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
652      data.diagnostics, data.gchem, data.ptracers) is done.
653    
654    o pkg/diagnostics: prepare for Global/Regional statistics.
655      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
656    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
657      and rename it: DIFFERENT_MULTIPLE
658    
659    checkpoint57h_post
660    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
661    o pkg/diagnostics: change output frequency, now in seconds (instead
662      of Nb of iterations). This requires to change data.diagnostics.
663    checkpoint57h_pre
664    
665    o in mnc, let the user create the output dir if both mnc_outdir_date
666      and mnc_outdir_num are false
667    o add fflags() to pkg/diagnostics which allows one to specify, on a
668      per-file basis, the file precision [default behavior is unchanged]
669    o added diagnostics to pkg/kpp, including computation of mixed layer
670      depth based on a temperature/density criterion
671    o updated verification/natl_box to test the new pkg/kpp diagnostics
672    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
673    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
674    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
675      not mnc -- this mistake was found by JMC and is now corrected
676    
677    checkpoint57g_post
678    o add Adams-Bashforth 3rd Order time stepping:
679      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
680      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
681    checkpoint57g_pre
682    
683    o make lambda[Theta,Salt]ClimRelax spatially varying
684      (default remains spatially uniform constant based on tau)
685    o added new control variables
686      * init. uVel, vVel, etanN
687      * lambda[Theta,Salt]ClimRelax
688    o separate masks used for ctrl_pack/unpack 'from write_grid' output
689      (suggested by G. Forget)
690    
691    checkpoint57f_post
692    o add parameter "baseTime" = model base time = time at iteration zero
693      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
694      account for baseTime shift
695    o move Coriolis arrays from PARAMS.h to GRID.h
696    checkpoint57f_pre
697    
698    o mnc-ifying the seaice package
699    o introduced an alternative length scale calculation for use in the limiting
700      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
701    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
702    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
703      as well as grad(vort3).  Made it compatible with both approximate form
704      for the cubed sphere and full form of these gradients.  Added flag
705      useFullLeith to select between approximate and full form.  
706    o add "d0" in getcon.F to reduce differences between compilers/platforms
707      update output.txt of exp. fizhi-gridalt-hs
708    o change port_rand funtion to allow to set the seed.
709    o fix obscure MNC bug involving conversion between reals and integers
710      - it caused no problems with certain (eg. gcc, ifc) compilers but the
711        new version is now more standards-compliant
712    o adjoint-related modifications
713      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
714      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
715      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
716    
717    checkpoint57e_post
718    o Adding eddy stress controls a la Ferreira et al.
719    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
720    
721    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
722      update output.txt of exp. fizhi-gridalt-hs
723    o add more "Z" dimensions and associated coordinate vars to MNC
724    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
725    o parameter calendarDumps: when set, approximate months (30-31 days) and years
726      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
727      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
728      months and years.  Requires pkg/cal.
729    o diagnostics: add pickup functionality
730      - off by default for backwards compatibility
731      - current version only uses MDSIO -- MNC will be added
732    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
733    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
734    
735    checkpoint57d_post
736    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
737    o modify verification/ideal_2D_oce so that it tests the creation of mnc
738      output from the diagnostics package
739    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
740    o make genmake2 more portable by using ".$FS" instead of ".f" for more
741      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
742    o add coordinate variables to the MNC output from the diagnostics package
743    o change MNC-flags default value: true when useMNC=TRUE
744    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
745      the ability (off by default) to read the grid information using MNC
746    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
747    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
748    o do snap-shot diagnostics at the middle of the time-interval (instead of
749      at the end).
750    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
751      new test for AIM with thSIce + slab-ocean
752    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
753    o move state variable diagnostics to the beginning of the time step ;
754      (note: still needs some work specially for snap-shot diagnostics)
755      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
756    
757    checkpoint57c_post
758    o Change testing option (-ieee) to get closer agreement between g77 & ifort
759    o generate new output.txt files on faulks with g77 & the new -ieee option
760    checkpoint57c_pre
761    
762    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
763      update output.txt of exp. global_ocean.90x40x15
764    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
765      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
766    o add saltFlux(+File) forcing capability with periodicExternalForcing
767    o allow to use pkg diagnostics for GM-Redi & ThSIce output
768    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
769    o improvements for the MNC output from DIAGNOSTICS:
770      - correct handling of the unlimitied dimension
771      - all dims now have associated coordinate variables
772      - variables located at U, V, and Corner ("Z") points are now written
773        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
774        *all* data points are output
775    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
776    o added pkg/seaice/seaice_monitor.F
777    o mdsio_readfield.F can now read files visible only to master MPI process.
778    o pkg/seaice: some test code for ice-modified ocean stress
779    o exf_getffields interpolation defaults to bilinear for all scalar forcing
780      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
781      spurious negative numbers for precipitation and humidity.  Will cause
782      some small numerical differences for integrations using pkg/exf/exf_interp.F.
783    o pkg/ctrl/
784      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
785        May be enabled via doPackDiag
786      *  introduce z-scaling of
787         + gradient (doZscalePack) and
788         + control (doZscaleUnpack)
789    o pkg/mdsio/
790      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
791      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
792    
793    checkpoint57b_post
794    o simplify options in diagnostics_fill arguments (remove weird combinations)
795    o fix MNC coordinate variables so that they now contain per-face index
796      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
797      general, EXCH2 grids are only aligned to a "local" coordinate system
798    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
799    o Implement instantaneous output within pkg diagnostics:
800      setting a negative frequency in data.diagnostics produces
801     "snap-shot" output (as opposed to time-average if freq > 0)
802    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
803      NOTE: change ptracer diagnostics name: use 2 characters to work with
804            more than 9 tracers. Add also diagnostics of advect & diffus flux.
805    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
806      becomes the coordinate variable for the 'T' dimension
807    o add CF-style coordinate variables to MNC
808      - just a first cut:  numbers are meaningless on the cubesphere and
809        missing along the T axis but otherwise it works!
810    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
811    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
812    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
813      this is based directly on what the model compute, so that the content of
814      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
815    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
816    o clean up build options files for SunOS, in particular
817      - remove -traditional from xmakedepend
818      - change -xarch=v9 to -xarch=native for f77
819      - restore use of make (not gmake)
820      - add CC=gcc if using g77
821    o changes per discussion of AM, JMC, & EH3 today:
822      - move redundant "grid" variables out of "state" -- in preparation of
823        creating proper CF-style coordinate variables and in recognition
824        that any/all grid variables can be easily copied (eg. w/NCO) from
825        the grid files into any of the other NetCDF files
826      - *always* output grid variables with MDSIO (this will eventually be
827        changed)
828      - output MNC grid file if useMNC is true
829    o every instance of _END_MASTER() has been found and replaced with
830      _END_MASTER( myThid ) in order to satisfy certain picky Sun
831      preprocessors
832    o re-arrange diagnostics pkg initialisation:
833     - allow each package to extend the available diagnostics list
834     - add some checking and fix small problems (multi-threaded, ...)
835     - new S/R diagnostics_fill (replace fill_diagnostics):
836       look through the short list of active diag. (instead of the long list)
837       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
838    
839    checkpoint57a_post
840    o this set of changes restores TAMC compatibility
841      tested for global_ocean.90x40x15 adjoint on trough
842      (what a pain)
843    
844    checkpoint57a_pre
845    o some modifs in tools/build_options for sunos
846    o call ctrl_pack for ctrl at end for optimcycle=0
847    
848    checkpoint57
849    o add horizontal bi-harmonic viscosity for vertical velocity
850      - new parameter viscA4W (defaults to viscA4)
851      - affects only non-hydrostatic code
852      - to be done: no-slip lateral boundary conditions
853    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
854    o implement Implicit Vertical advection for pTracers
855    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
856      (implemented also for implicit vertical diffusion & advection)
857    o OBCS: extend application of tracer open boundary conditions
858      to a strip beyond the boundary of width Olx/Oly
859    o add call monitor to TAF set of required calls (flow directives)
860      and include in natl_box_adjoint
861    o untangle a few ifdefs related to cost, ctrl, autodiff
862      untangel a few ALLOW_ECCO_OPTIMIZATION
863    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
864      (theta2, salt2 in ecco_cost_weights)
865    
866    checkpoint56c_post
867    o OBCS as control variables
868      - update ctrl_ad_diff.list, obcs_ad_diff.list
869      - remove balance of obcs controls from default
870      - fix index bug nobcs in ctrl_init
871      - fix dummy fields filen in ctrl_pack
872      - add dummy weights for obcs
873    o lsopt: comment out fort.94 output
874    o optim:
875      - remove unnecessary header files
876      - adjusted namelists
877      - add xerbla.F to Makefile
878    o exf:
879      - multiple modifications of exf_check_range
880      - unit change in exf_init_runoff from [m/year] to [m/s]
881    o mdsio:
882      - i/o-vector change debugLevel from debLevA to debLevB
883    
884    checkpoint56b_post
885    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
886      is called from DO_THE_MODEL_IO
887      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
888      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
889      - clean up PTRACERS_WRITE_TIMEAVE a little
890    o add another verification experiment that tests both the cfc-pkg and
891      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
892      reactive tendencies treated inline with regular timestepping
893    o testreport previously did a lousy job of comparing small numbers, so
894      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
895      implemented in the little c-progam tmp_cmpnum.c which is embedded in
896      testreport.
897    o ptracers_monitor: bug fix for MPI
898    
899    checkpoint56a_post
900    o GCHEM: finish reorganizating the package
901      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
902        (introduces another 3D-array for each passive tracer, but only if
903        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
904        gchemTendency is not needed because the timestep is done separately)
905      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
906      - GCHEM is now---more or less cleanly---separate from PTRACERS
907      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
908        so clear to me how that should be done in a general way.
909    o CFC: improve formatting of output in CFC_ATMOS
910    o PTRACERS:
911      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
912        that ALL experiments with ptracers enable can be checked. This makes
913        GCHEM_MONITOR obsolete.
914      - include a runtime parameter PTRACERS_monitorFreq that defaults to
915        monitorFreq
916      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
917    o add PTRACERS (PTR0[1-5]) to testreport output
918    o exf_check_range:
919      * default changed to .TRUE.
920      * will check values for niter0 if debLevA, every timestep if debLevB
921      * STOP in exf_check_range if 'out of range'
922      * range chosen generous to allow for potential extema
923      TBD: a version with stricter range
924           permitted range would be runtime parameters
925    o GMredi:
926      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
927      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
928      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
929    o GCHEM:
930      - move call to GCHEM_FORCING_SEP, so that it is now called before
931        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
932      - introduced a useGCHEM runtime flag and applied it everywhere.
933      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
934        this flag is now only visible within GCHEM-pkg routines.
935      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
936        be replaced by a 3D array that is computed before thermodynamics; for
937        this, the tracer ID iTracer had to be included into the parameter list
938        of ptracers_forcing
939      - set up forward_step to call gchem_forcing, that will replace
940        gchem_forcing_int in ptracers_forcing
941      - cleaning up
942    o small cleaning of exch2: remove files that are also in eesupp/src
943    
944    checkpoint56
945    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
946    o mnc: cleanup "full" files--fixes out-of-memory problem
947    o ECCO-GODAE
948      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
949      * fully merged and updated from SIO code
950        windstress sign change affects
951        - exf_inscal_[u/v]stress
952        - sign of xx_tau[u/v] adjustments
953        - signs in cost_scat
954      * ctrl_get_gen: avoid update of tau[u/v] for first few days
955      * natl_box_adjoint updated and compressed
956      * 2-level checkpoint switch added
957        (tested in EXP. 1 of natl_box_adjoint)
958      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
959    o SVD
960      * first complete, non-hacked version for SVD calculations
961      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
962        performed via direct access files admtlm_vector.it????
963        (via ctrl_[un]pack)
964      * optimcycle is used for ARPACK iteration counter
965        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
966      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
967        and add linear transforms where necessary
968      * controls are initial/final SST, SSS (can be extended; need to check
969        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
970    o mdsio: filename info to both stderr, stdout
971    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
972      from sign change
973    
974    checkpoint55j_post
975    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
976      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
977    o add consistent build directories and .cvsignore files to verification
978    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
979    o make all subroutines 30 or less characters in length for certain older
980      compilers to work (a thorough search only turns up two routines in
981      pkg/ptracers)
982    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
983      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
984    
985    checkpoint55i_post
986    o change arrays for total vertical diffusivity (2.D if explicit,
987      3.D if implicit) ; each ptracer uses its own background value.
988    o added mnc/NetCDF output capability to ocn_compon_interf
989      - added bits to verification/cpl_aim+ocn so that it can run on
990        ITRDA and other clusters without the mpirun "-wd" option
991    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
992      configuration
993    o give MNC the ability to create additional files rather than
994      exceeding a specified file size limit "MNC_MAX_FILESIZE"
995      - the default is just less than 2GB which is a practical limit
996        on many systems
997    o Compute the non-local term using either KPP vertical diffusivity (=default)
998       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
999    
1000    checkpoint55h_post
1001    o add verification test "vermix"
1002    o remove all the *_ioinc flags and replace with the single global
1003      outputTypesInclusive flag
1004    o allow to set a vertical profile of vertical diffusivity for T & S
1005    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1006    o useMNC moved from data.mnc to data.pkg
1007    
1008    checkpoint55g_post
1009    o Renaming carbon AD experiments to comply with testreport conventions
1010    o Updating adjoint of Held-Suarez hs94.1x64x5
1011    o Fixing directives for non-ECCO forward_step, after ECCO directives
1012      have been fixed to avoid recomp. of do_oceanic_phys
1013      Works well for global_ocean.90x40x15,
1014      but recomp. issue remains for carbon
1015    o Updating adjoint output for natl_box_adjoint after
1016      pkg/ecco has been modified (see taga c55d_post)
1017    
1018    checkpoint55f_post
1019    o rename to timeave_init_fixed
1020    
1021    checkpoint55e_post
1022    o some delicate re-shuffle of store directives to avoid one
1023      extra call of do_oceanic_physics
1024      affects ecco_the_main_loop.F, do_oceanic_physics.F
1025      checkpoint_lev1_directives.h
1026    o NB: this may break global_ocean adjoint temporarily,
1027      but it is clear how to fix it. Will do later, need this now.
1028    
1029    checkpoint55d_post
1030    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1031    o ecco_cost_weights is modified to 1x1 runs
1032    o modifs to allow observations to be read in as
1033      single file or yearly files
1034    o enable to read exf forcing fields as either
1035      single file or yearly files (flag useExfYearlyFields)
1036    checkpoint55d_pre
1037    
1038    o switch between 2-level and 3-level checkpointing
1039    o add ability of MNC to write local and "partial" (eg. 2D slices where
1040      the full 3D field is never actually stored) arrays to NetCDF files
1041      with the correct (that is, the complete multi-dimensional) set of
1042      array indicies
1043      - used in mom_vecinv() to write the diagFreq output
1044      - tested (demonstrated) in verification/aim.5l_cs
1045    o further mnc-ification
1046      - add verification/lab_sea to the list with mnc setups
1047      - fix undefined mnc v-names in cd_code
1048      - add kpp to mnc output (both snapshot and timeave)
1049    o non-hydrostatic code
1050      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1051        in calc_gw.F
1052      - defaults to viscAh
1053      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1054        friction or Leith) in non-hydrostatic mode, as long as there is
1055        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1056    o pkg/cost
1057      extend simple cost functions to treat time mean quantities
1058      (T,U,V) via cost_accumulate_state from cost_tile
1059    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1060        be 2 times larger than the minimum size the advection scheme requires.
1061        now get a perfect conservation of salt in advect_cs test-exp (updated)
1062    o GGL90 (Gaspar's TKE mixed layer)
1063      - add horizontal diffusion of TKE, requires exchanges in
1064        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1065        default. In OPA there is no horizontal diffusion of TKE but the
1066        mixing coefficients are computed from a horizontal average of TKE of
1067        6 points or so. I think that diffusion has a little more physical
1068        justification.
1069      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1070        was in vain)
1071      - mask tke-variable in ggl90_init
1072    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1073    o fix biharmonic diffusion on CS-grid.
1074    o more obcs stuff
1075      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1076        for reading boundary values. This routine is called from
1077        obcs_prescribe_read
1078      - updated obcs_check
1079      - changed sponge layer relaxation parameter units for days to seconds
1080      - turned off sponge layer by default
1081      - changed argument list of OBCS_CALC to myTime+deltaTclock
1082      - fixed about 35 bugs in obcs_external_fields_load
1083    
1084    checkpoint55c_post
1085    o obcs stuff
1086      - new runtime flags useOBCSprescribe, useOBCSbalance
1087      - re-arranged obcs_calc
1088      - moved exf_getobcs to obcs_prescibe_read
1089        obcs_prescibe_read is called after ORLANSKI stuff
1090        and independent of it (executable can contain all).
1091      - updated obcs_check
1092      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1093        These may be necessary only if tangential velocities are
1094        prescribed at OB, not sure, needs testing.
1095    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1096      which simplifies the calls and passes the ifc check-bounds test
1097    
1098    checkpoint55b_post
1099    o add a 2D scalar, Z location, exchange_2 routine.
1100    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1101      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1102      affects advect_cs results (for the wrong reason): update output.txt
1103    o use a more standard discretization for biharmonic viscosity ;
1104     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1105      affects results of dome set-up: update output.txt
1106    o fix gad_advection.F (CubedSphere part), back to version 1.23
1107    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1108    
1109    checkpoint55a_post
1110    o merged code to
1111      * prescribe/read time-dependent open boundaries
1112        (works in conjunction with exf, cal)
1113      * sponge layer code for open boundaries
1114      * each boundary N/S/E/W now has its own CPP option
1115        (healthy for the adjoint)
1116    
1117    checkpoint55
1118    o up-to-date adjoint of previous breaks
1119      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1120      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1121      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1122      - carbon: * remove tr1-related adjoint verification
1123                * add ptracer as control variable
1124    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1125      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1126    
1127    checkpoint54f_post
1128    o in verification/carbin/ remove experiment related to
1129      ALLOW_PASSIVE_TRACER (array tr1 etc)
1130      code_ad/ input_ad/ results_ad
1131    
1132    o add two new packages
1133      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1134        + subject to optimization (memory)
1135      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1136        + subject to reordering (many GOTOs in the original code)
1137        + so far opps is called for every (i,j) point, and then operates in
1138          the vertical; one may want to reorder the scheme in order operate in
1139          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1140          fields)
1141    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1142      - all verification tests compile and run with linux_ia32_g77
1143      - defaults are compatible with current input files--nothing
1144        should change if you were not previously using MNC
1145      - MNC output has been added in numerous places (eg. timeave)
1146        but there are still a few writes not yet do-able with MNC
1147        (this is in progress)
1148      - flags now allow for either/or/both use of MDSIO and MNC and
1149        documentation will soon follow
1150      - numerous small formatting cleanups for ProTeX
1151    o add version info (via BUILD_INFO.h) to MNC and stdout
1152    
1153    checkpoint54e_post
1154    o add two new packages
1155      - pp81 (Packanowski and Philander, 1981), Richardson number and
1156        stratification dependent mixing
1157      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1158      - these scheme operate in a similar manner as KPP (without ghat, of
1159        course), however there is only one diffusivity that is used for both
1160        temperature and salinity (and passive tracers)ç
1161    o add offline package
1162    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1163      provided by Stephanie Dutkiewicz
1164    o genmake2: add ability to search for C compilers and cleanup test output
1165      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1166    
1167    checkpoint54d_post
1168    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1169    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1170      leading to additional shift by 5 days each year of integration
1171       (i.e. leading to considerable offset over the years)
1172    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1173    o start with no AB and no initial filtering (staggerTimeStep):
1174      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1175    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1176      (external loading & cpl import/export stay in forward_step.F)
1177    o update coupling interface to work with new staggerTimeStep
1178    o change MDSIO ptracers_pickup.
1179    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1180    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1181    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1182    
1183    checkpoint54c_post
1184    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1185      this affects (truncation error) output.txt of test-exp:
1186       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1187    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1188    o change Qnet to always be the net heat flux, (+upward).
1189      affects (truncation error) output of natl_box exp.: updated
1190    o define the max number of passive tracers in PTRACERS_SIZE.h
1191    o start to test mnc routinely in exp0
1192    o add sea-ice loading (sIceLoad) as a new forcing field.
1193    
1194    checkpoint54b_post
1195    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1196       impressive on Altix and Opteron systems)
1197    o diagnostics can now write NetCDF files through the mnc package
1198    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1199    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1200    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1201      affects (truncation error) output of lab_sea & natl_box exp.: updated
1202    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1203    
1204    checkpoint54a_post
1205    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1206    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1207    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1208    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1209      + internal_wave (shift in writing cg2d_ini_res)
1210    checkpoint54a_pre
1211    
1212    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1213      - modified verification/lab_sea and natl_box_adjoint accordingly
1214    
1215    checkpoint54
1216    checkpoint53g_post
1217    o prepare splitting of thermodynamics: store convect.counter in common block
1218    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1219      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1220    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1221    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1222    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1223    o restore adjointability
1224    
1225    checkpoint53f_post
1226    o modifications that affect AIM experiment results (update output.txt):
1227      - no advection of S at top interface Nr (pkg/generic_advdiff)
1228      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1229    o AIM pkg:
1230      - include stability function into surf.Flux derivative relative to Tsurf
1231      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1232    
1233    checkpoint53e_post
1234    o merged cylindrical coord configuration
1235    o added rotating_tank experiment
1236    checkpoint53e_pre
1237    
1238    checkpoint53d_post
1239    o faulks upgraded: re-generate output.txt that have changed:
1240       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1241    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1242    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1243    o added Sadourny discretization of Coriolis
1244      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1245      - re-enabled use of omega3 (useAbsVorticity)
1246    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1247      vector-invariant equations
1248      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1249    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1250      hopefully without new bugs
1251      - still to do: biharmonic friction for non-hydrostatic w
1252    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1253    o regenerated output for global_ocean_ebm (using -ieee)
1254    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1255      of mom_common/
1256      - simple re-arrangement of instructions within computing loop
1257    checkpoint53d_pre
1258    
1259    checkpoint53c_post
1260    o new version of coupler for AIM+thSIce and Ocean models
1261     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1262     - land: change Evaporation of snow
1263     - aim with thSIce: fix bug in snow-precip.
1264    o changes to calc_gw.F
1265     - bug fix for w^2 term near the bottom boundary
1266     - (hopefully) improve the lateral slip boundary condtions for use with
1267        partial/looped cells
1268      - because the bug fix changes two verification experiments anyway (exp5
1269        and plume on slope), change the lateral boundary condition from half slip
1270        to the value of no_slip_sides
1271    o ebm package wasnt quite up to the parallel task. Fixed that.
1272    o Adjoint of EBM package + verification
1273      * TLM OK
1274      * ADM not sufficient accuracy yet (needs further testing)
1275    
1276    checkpoint53b_post
1277    o Commiting new energy balance model to repository
1278      * package is pkg/ebm
1279      * verif. is verification/global_ocean_ebm
1280      * references are in ebm_driver.F
1281    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1282    C        Global thermohaline circulation. Part I:
1283    C        Sensitivity to atmospheric moisture transport.
1284    C        J. Climate 12(1), 71-82
1285    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1286    C        Global thermohaline circulation. Part II:
1287    C        Sensitivity with interactive transport.
1288    C        J. Climate 12(1), 83-91
1289    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1290    C        Destabilization of the thermohaline circulation
1291    C        by atmospheric eddy transports.
1292    C        J. Climate 7(12), 1870-1882
1293    o Will need long integration testing.
1294    checkpoint53b_pre
1295    
1296    o created pkg/mom_common in preparation for variable viscosity code
1297    o renamed and split ini_mnc_io
1298    o pkg/land: only liquid water can diffuse or run-off
1299    o AIM using land: soil wetness availability account for snow
1300    o added printMapIncludesZeros to EEPARMS namelist
1301    
1302    checkpoint53a_post
1303    o restore TAMC compatiility for exf_constants.h
1304      (no usage of _d in .h)
1305    o Additional storing in KPP in an attempt to fix
1306      TAMC problem with adjoint of KPP code.
1307      (no success...)
1308      Identical code works fine with TAF.
1309    o Fixed verification/natl_box_adjoint experiments.
1310      Initial conditions for Experiments 4 and 5 are now
1311      set to "SEAICE_initialHEFF=0", which is more reasonable,
1312      and hence gives results closer to that of Experiment 2.
1313      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1314    
1315    checkpoint53
1316    o stable checkpoint with up to date adjoint
1317      TLM tests only run for 1st grdchk at the moment. Its unclear if
1318      this is a code problem or a problem with resetting code for g_
1319      variables that is being autogenerated wrong.
1320      Otherwise:
1321       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1322       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1323         are both still in chaos following their security messes.
1324    
1325    checkpoint52n_post
1326    o various build (mostly genmake2) changes including:
1327      - ability to build/run more easily within Cygwin and MacOS X
1328      - more complicated Makefiles with a stronger dependence on Gnu Make
1329    o pkg/seaice modifications
1330      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1331        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1332        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1333      - changed proxy for geostrophic velocity and updated
1334        verification/lab_sea/results/* accordingly
1335      - removed ADI dynamic solver from pkg/seaice
1336      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1337        they caused a segmentation fault under certain circumstances
1338      - removed unused field WATR
1339    o bug fix in exf-package:
1340      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1341         now reflect that.
1342    o small fixes in the cal-package:
1343      - set reference date to first of January for the 'model'-calendar
1344      - failing of cal_CheckDate in cal_FullDate now actually results in a
1345        warning
1346    o small modifications in exf-package to increase flexibility:
1347      - change climtempfreeze from a constant to a runtime parameter that
1348        is specified in data.exf_clim (default = -1.9)
1349      - introduce runtime parameter windstressmax (default = 2.0) that is
1350        specified in data.exf
1351    o fix in pkg/thsice:
1352      - update Evap (Tsf changes) to be consistent with Latent heat flux
1353      - maintain snow precipitation unchanged (even if Tsf >=0).
1354     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1355    
1356    checkpoint52m_post
1357    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1358      this does not change any of the results, because myIter=0 in swfrac always
1359      lead to jwtype=2 (the default anyway), but the call makes little sense
1360      as a default
1361    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1362    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1363      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1364    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1365    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1366    o extending useSingleCpuIO option to work with new exch2 I/O format
1367      - old-style, missing-tile I/O is still accessible by defining CPP
1368        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1369    o monitor package can write to NetCDF files and/or STDOUT
1370    o fix re-definition bug in MNC_GRID_INIT_ALL()
1371    o doc/api_reference added
1372      - a framework for building an API Reference Manual using all
1373        the "protex" comments embedded in the code
1374      - see pkg/generic_advdiff, pkg/mnc for examples
1375    o MNC:
1376      - make myThid the last argument for all subroutines
1377      - new default for the grid files: NO halos
1378      - add useMNC and other run-time flags
1379      - separate per-file-group handling of the unlimited dimension
1380      - early initialization of MNC w/ flags read at the eeboot stage
1381        and lookup tables set in initialize_fixed
1382      - write all MNC output to a freshly-created directory
1383    o thermodynamics sea-ice (thsice) is now tested with testreport.
1384    o test exp. advect_cs: use the standard cs32 grid ; update output.
1385    o Added functionality to grdchk:
1386      pick global i,j,k position (or nearest wet) where to perform check.
1387    
1388    checkpoint52l_post
1389    o new land formulation:
1390      a) use ground enthalpy as prognostic variable to ensure exact
1391         energy conservation.
1392      b) account for water temperature and for latent heat of freezing
1393         in all processes (rain, run-off, ground storage)
1394      c) compute surface and ground temperature implicitly.
1395    o aim_v23 modification for new land model:
1396      a) Treat separately land / ocean / sea-ice surface fluxes
1397         to allow implicit computation of land & sea-ice surface temp.
1398      b) add snow precipitation.
1399    checkpoint52l_pre
1400    
1401    o fix problem (when 1 tile is empty) in min/max monitor.
1402    o fix bug in timeAve (u,vZetatave in common block)
1403    o no restoring terms under ice for pkg/seaice
1404    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1405    o bug fix for pkg/seaice pickups
1406    o change MNC call locations and add coordinate attributes
1407    o mask vorticity at the corner ; affects global_ocean.cs output
1408    o fix ini_curvilinear_grid ; test CS experiments with mpi
1409    o aim.5l_cs: modify sea-ice fraction input file ; update output
1410    o exf: Adding simple range check routine for exf fields after read
1411    
1412    checkpoint52k_post
1413    o removed top-level directory "diags"
1414      - we migrated these functions to pkg/timeave a long time ago
1415    o fixed bug introduced in pkg/monitor
1416    o accuracy ctrlprec = 32 insuffient for gradient checks using
1417      averaged fields (I/O via cost_averages)
1418      -> use ctrl.h in active_file*.F to control I/O precision.
1419    o paramter list of CALL ADTHE_MAIN_LOOP
1420    o added initial do_the_model_io to ecco
1421    o set all ...Freq to zero after cost_final
1422      taveFreq, dumpFreq, pChkptFreq
1423    o MAIN and ECCO differentiability restored
1424    
1425    checkpoint52j_post
1426    o fix nchklev in tamc.h for global_ocean...
1427    o Bringing flow and store directives up-to-date
1428    o Really weird thing!
1429      call do_the_model_io from the_main_loop with parameters
1430      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1431      TAF places a faulty re-call of initialise_varia
1432      after cost_final call which should not be there!
1433    checkpoint52j_pre
1434    
1435    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1436      error messages
1437    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1438    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1439      debug output
1440    o modfied mdsio_writefield.F to handle non-global files under exch2
1441    o update AIM Cubed-Sphere exp (aim.5l_cs):
1442      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1443    o update AIM Equatorial Channel exp:
1444      use standard aim_v23 pkg and change the SST fields to be more realistic.
1445    o globalFile now works with exch2
1446    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1447      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1448    o limit timeave output for hi-res integrations
1449    
1450    checkpoint52i_post
1451    o removed CPP_EEOPTIONS.h from verification/*/code
1452    o updated the tiling for global_ocean_pressure
1453    checkpoint52i_pre
1454    
1455    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1456      the old pkg/aim).
1457    
1458    checkpoint52h_pre
1459    o shortened offending lines in exch2_send_rx?.template
1460    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1461    o genmake2: add build & execute test for NetCDF code
1462    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1463      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1464    o added useSingleCPUIO flag to monitor.F and mon_out.F
1465    o added temporary hack for sea-ice dynamics on the cube:
1466      metric terms are ignored and it is assumed that
1467      there is no sea-ice on cube faces 1, 2, 4, and 5.
1468    
1469    checkpoint52f_post
1470    o added exch2 cube routines to pkg/exch2
1471    o modified hs94.cs-32x32x5 to use it
1472    o added new grid files to hs94.cs-32x32x5
1473    checkpoint52f_pre
1474    
1475    checkpoint52e_post
1476    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1477      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1478    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1479      to work with implicit vertical advection and AB ;
1480    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1481    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1482     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1483    checkpoint52e_pre
1484    
1485    o fix bug in impldiff when Nr=1 or Nr=2.
1486    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1487    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1488    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1489      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1490    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1491    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1492    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1493    
1494    checkpoint52d_post
1495    o re-tiled many expts to allow comparison in multi-processor mode
1496      - updated output accordingly
1497      - changed hs94.128x64x5 to use intial T from file rather than use the
1498        random number generator
1499    o add infrastructure in model routines for fizhi and gridalt packages
1500    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1501    o changes to permit hi-res, cubed-sphere, configuration
1502      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1503      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1504      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1505        of surface winds for the cube
1506      (A verification experiment, based on global_ocean.cs32x15, but with
1507       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1508       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1509       complete with example surface forcing files and matlab scripts to look
1510       at the output and compare it with that of global_ocean.cs32x15.)
1511    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1512       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1513       to conform to the common rule.
1514    o check-in the first version of the coupler + interfaces for multi-components
1515       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1516       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1517       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1518       - ocean and atmos. share the same horizontal grid (no interpolation).
1519       - exchanges between component and coupler is done in forward_step
1520    o new verification experiment, cpl_aim+ocn:
1521       coupled ocean - AIM atmosphere on cs32 grid.
1522    
1523    checkpoint52d_pre
1524    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1525    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1526    
1527    checkpoint52c_post
1528    o Fixing OPTIONS files for use of exf:
1529      - ALLOW_ECCO not needed
1530      - ECCO_CPPOPTIONS.h should not be included from
1531        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1532        as has been the case in the past
1533      - All cal/exf related options are currently set in
1534        single header file. Should remain so until we
1535        agree on a consistent new policy.
1536    o Removed all CPP options for cal package.
1537      cal has no more CPP options.
1538    o modified STOREs in GAD_ADVECTION
1539    o corrected key comp. for passkey
1540    
1541    checkpoint52b_post
1542    o new version: "thsice" of thermodynamic sea-ice pkg:
1543     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1544     - modify fluxes but do not change theta directly;
1545     - light cleaning of bulk_force pkg (still needed with thsice).
1546     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1547       + output_thsice.txt to test thsice & bulk_force pkgs.
1548    o put back grid & coriolis monitor output.
1549    checkpoint52b_pre
1550    
1551    o call "do_the_model_io" at the beginning (=> dump initial state)
1552    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1553    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1554      (need info on NUMBER_OF_PTRACERS)
1555    o missing PTRACERS headers in some routines
1556    o default tamc.h in pkg/autodiff supposed to crash
1557      to ensure proper customization
1558    
1559    checkpoint52a_post
1560    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1561      - moved surfaceTendencyTice from pkg/seaice to main code
1562      - subroutine FREEZE_SURFACE now limits only surface temperature
1563        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1564        => new output.txt for global_ocean.cs32x15 & global_with_exf
1565      - keep the old version of FREEZE for backward compatibility;
1566        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1567      - corresponding modifs for TAF directives
1568    o added surface flux output variables to TIMEAVE_STATVARS
1569    o time-averaged output for pkg/ptracers
1570    o fix problem with ECCO-related divided adjoint
1571      snapshot file was missing some ad-variables,
1572      but no warning issued by TAF
1573    
1574    checkpoint52a_pre
1575    o some bug fixes for #undef REAL4_IS_SLOW
1576    
1577    checkpoint52 = ecco_c52_e35
1578    o after testing adjoints of checkpoint51u_post
1579    
1580    checkpoint51u_post
1581    o this is the post-merge tag of the ecco-branch
1582      (needs another clean checkout and re-testing)
1583    o various natl_box_adjoint configs and results
1584      but no input fields
1585    o obcs adjoint not yet merged!
1586    o adding ECCO global 1x1 and 2x2 degree configs
1587    o updated/extended some store directives for seaice
1588    o pkg/ecco now containes ecco-specific part of cost function
1589    o top level routines the_main_loop, forward_step
1590      supersede those in model/src/
1591      previous input data.cost now in data.ecco
1592      (new namelist ecco_cost_nml)
1593    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1594    
1595    checkpoint51t_post
1596    o this is the pre-merge tag of the ecco-branch
1597    
1598    checkpoint51s_post
1599    o cleanup: removed various obsolete #define-s
1600    o pkg/grdchk
1601      - renamed 'ph-grd 3' to 'grad-res'
1602      - merged from ecco-branch
1603        (remaining bug fixes for obcs gradient checks)
1604      - additional high-precision output for testreport
1605        (grep for 'precision_grdchk_result')
1606    
1607    checkpoint51r_post
1608    o cleaned up or removed CPP_OPTIONS.h files
1609    o updated results for some of the tests to reflect the new
1610      optfiles (-ieee: -O0 instead of -O3)
1611    
1612    checkpoint51q_post
1613    o cd_code:
1614      - moved cd_scheme.F -> cd_code_scheme.F
1615      - separate read_checkpoint from cd_code_ini_vars.F
1616      - separated cd_code part from write_checkpoint
1617      - updated AD_SOURCE, generated .flow
1618      - added CD_CODE_VARS.h to the_main_loop
1619      - Moving cd_code specific store dir.s to pkg/cd_code
1620    o ctrl package totally restructured
1621      - pack/unpack now optional and decoupled from
1622        xx_/adxx_ I/O
1623      - ctrl_pack/unpack cleaned
1624        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1625      - confined inclusion of AD_CONFIG.h to where necessary.
1626    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1627    
1628    checkpoint51p_post
1629    o create initial cd_code package
1630      - WARNING: the initialization of fields within packages
1631        is broken because INI_FIELDS (where READ_CHECKPOINT is
1632        called) is called *before* PACKAGES_INIT_VARIABLES.
1633        This seems to be backwards since
1634        1) its important to initially zero the entire field including
1635           the "halo" region
1636        2) zeroing needs to be done *before* reading pickup info
1637           and the pickup call might or might not happen in any
1638           particular run
1639      - this needs an overhaul for R2
1640    o cleanup verification/*/code/GMREDI_OPTIONS.h
1641    o cleanup testreport
1642    
1643    checkpoint51o_post
1644    o bringing AD-related verif's up to date with genmake2
1645      - carbon/
1646      - global_ocean.90x40x15/
1647      - hs.94.1x64x5/
1648      - (front_relax/ )
1649    o (more) consistent directory structure for AD-related verif.'s
1650    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1651    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1652    o bug fix in find_alpha.F for MDJWF:
1653      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1654        change rho -> rho-rhoConst
1655      - replace call find_rho to find_rhonum
1656    o initialisation of rFlx extended to full array (required by TAF)
1657      and shifted to thermodynamics
1658    o removed PTRACERS.h in ptracers routine
1659    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1660    o Correcting initialisations for fVerU, fVerV.
1661    o helping TAF to recognize dependency on kUp for
1662      fVerU, fVerV
1663    o Replacing delZ by delR in pkg/ctrl/
1664    checkpoint51o_pre
1665    
1666    o undid all of cp51 pending some cleanups and discussion
1667    o added the [#include "AD_CONFIG.h"] statement to all files that need
1668       it for adjoint/tl #defines
1669     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1670     o removed tools/genmake since it no longer works
1671    
1672    checkpoint51n_post
1673    o modifications to make FREEZE flux visible to pkg/kpp
1674      - moved surfaceTendencyTice from pkg/seaice to main code
1675      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1676      - subroutine FREEZE now limits only surface temperature
1677        (this means new output.txt for global_ocean.90x40x15,
1678         global_ocean.cs32x15, and global_with_exf)
1679    o added surface flux output variables to TIMEAVE_STATVARS
1680    
1681    checkpoint51n_pre
1682    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1683    o added [#include "AD_CONFIG.h"] to all files that use the following
1684      defines:
1685      - ALLOW_ADJOINT_RUN
1686      - ALLOW_TANGENTLINEAR_RUN
1687      - ALLOW_ECCO_OPTIMIZATION
1688    
1689    checkpoint51m_post
1690    o incorporating changes to get TAMC/TAF working in genmake2
1691      - added new TAMC/TAF targets to the Makefile
1692      - various cleanups related to package handling
1693      - these changes should have no impact on the forward model
1694    
1695    checkpoint51l_post
1696    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1697     - faster algorithm for cal_addtime.F
1698     - higher precision arithmetic, where needed
1699     - pkg/exf *startdate variables changed from calendar date to
1700       model integration time
1701    
1702    checkpoint51l_pre
1703    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1704    o enable to apply restoring on S & T only in a latitude band.
1705    o update output (external_forcing_surf modif. change truncation errors)
1706       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1707    
1708    checkpoint51k_post
1709    o change default to: useNHMTerms=.FALSE.
1710     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1711       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1712     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1713        exp1, ideal_2D_oce
1714     - change data file of oceanic exp (leave the results unchanged for now)
1715       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1716    o set gravitySign automatically according to the vertical coordinate used
1717      (and change sign: back to "logical" value: +1 when R increases downward)
1718    o added an include barrier to the default CPP_OPTIONS.h and
1719      removed the #include "PACKAGES_CONFIG.h" from it
1720    o fix a bug in mom_fluxform (from chk51j_post)
1721    
1722    checkpoint51j_post
1723    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1724    o adjusted some flow directives (dynamics, thermodynamics)
1725    o added cubed-sphere case to test cost function
1726    o heckpoint_lev?_directives.h now include
1727      pkg-specific directives, whenever those are enabled.
1728    o Moving pkg-specific flow directives to corresponding pkg
1729      Moving pkg-specific differentiation list to corresponding pkg
1730      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1731      ---> conventions are
1732           - pkg_ad.flow
1733           - pkg_ad_diff.list
1734           - pkg_ad_check_lev?_dir.h
1735    
1736    checkpoint51i_post
1737    o merge of the branch-genmake2
1738      - knowingly breaks the older genmake
1739      - automatic generation of all ALLOW_${PKG_NAME} defines
1740      - new testreport supersedes older testscript
1741    o large number of package inclusion and header cleanups
1742    checkpoint51i_pre
1743    
1744    o new output for adjoin of global ocean vector invariant
1745    o fix for checkpoint of thermodynamic seaice and bulk_force
1746    o Steph gchem various cleanups
1747    
1748    checkpoint 51h_pre
1749    o fixed some single quotes
1750    o modify gchem pkg to be more versatile
1751    o modifications to clean up dic pkg
1752    o add pkg/cfc
1753    
1754    checkpoint51g_post
1755    o provide links for ARPACK and ADM*TLM
1756    o start removing verification/vero/
1757    o update AD-related stuff
1758      (in particular some IF-statements in model/src/ routines)
1759    o adding to verification/global_ocean.90x40x15/ adjoint of
1760      vector invariant setup
1761    
1762    checkpoint51f_post
1763    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1764    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1765      of tracer Green's fucntions for ocean inversion project.
1766    
1767    checkpoint51f_pre
1768    o Added on-the-fly spatial interpolation capability
1769        "USE_EXF_INTERPOLATION" to pkg/exf.
1770      - This is a temporary Cartesian-grid hack until
1771        the super-duper ESMF coupler becomes available.
1772      - See verification/global_with_exf/README for usage example.
1773      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1774        flags and modified pkg/seaice accordingly.
1775    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1776        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1777        non-local transport term.
1778    
1779    checkpoint51e_post
1780    o pkg/mom_vecinv:
1781      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1782      - add time-ave diagnostic of vorticity advection.
1783    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1784    o atmospheric geopotential: - include water vapor effect;
1785                                - use p^kappa in p* scaling.
1786    o land pkg: read initial state from files.
1787    o AIM : add stratospheric drag in the upper level
1788    
1789    checkpoint51d_post
1790    o change function ILNBLNK (=> last non-blank char.) to return zero
1791      (instead of the string length) when the string. char is empty
1792    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1793    o modif's to restore TAMC compatibility
1794      - avoid "_d" constructs in PARAMETER declarations
1795      - avoid interrupting lines by comment lines
1796    o Use cluster local disks for purely local I/O
1797      vs. globally visible disks needed for ctrl stuff
1798      (merged from ecco-branch)
1799      - new active_file_loc... and mdsio_..._loc routines
1800      - affected packages: autodiff, ctrl, grdchk, mdsio
1801    
1802    checkpoint51c_post
1803    o introducing integer flag debugLevel
1804      - debLevZero: suppress all output
1805      - debLevA: standard
1806      - debLevB: equivalent to current debugMode=.TRUE.
1807    o introducing pathname variable mdsioLocalDir for mdsio
1808      that can be specified at runtime
1809      (relevant for cluster I/O to local disk)
1810    `
1811    >>>checkpoint51b_post
1812    adjoint of ptracers
1813    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1814    o extended state in checkpoint_lev?, etc.
1815    o alternative ctrl/cost with tr1 or ptracer
1816    o new comlev1_bibj_ptracers
1817    o new ptracers.flow
1818    o made ptracers_forcing same as external_forcing_s
1819    o added verification for adjoint with ptracers
1820      - adm. grdchk fail so far
1821      - tlm. grdchk OK
1822      - checked tapelev/comlev recomputations: OK
1823    <<<checkpoint51b_pre
1824    
1825    checkpoint51a_post
1826    o added code for biogeochemistry package
1827      - new pkgs: dic, gchem
1828      - new subroutine in ptracers
1829    o modify code for biogeo packages
1830      - in model/src and pkg/ptracers
1831    
1832    checkpoint51
1833    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1834      - autodiff, ctrl, exf, grdchk, seaice
1835      kept separate packages
1836      - cost, ecco, obcs
1837    o updating verification/internal_wave, verification/lab_sea
1838      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1839    
1840    checkpoint50i_post
1841    o Preparing next differentiable checkpoint and sync
1842      of MAIN vs. ecco-branch
1843      - 1st step: this one is differentiable
1844      - 2nd step: next(! not this) checkpoint will have updated packages
1845                  from ecco-branch)
1846    
1847    checkpoint50h_post
1848    o new package "land": provide surface BC for AIM.
1849    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1850    o AIM: use true log-P extrapolation for near surface temp (= as in
1851        F.Molteni paper) ; update aim.5l_cs output.
1852    o New variable in PARM03 for more flexible pickups
1853    o somewhat cleaned package initialisation sequence for
1854      ctrl/ cost/ ecco/ in packages_... routines
1855    
1856    checkpoint50g_post
1857    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1858      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1859      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1860        made the default because of faster convergence than ADI
1861    
1862    checkpoint50f_post
1863    o exf totally restructured
1864      - replaced all exf_set_ routines by one generic exf_set_gen.F
1865        and made sure it's still differentiable
1866      - split exf_getffields.F into new exf_bulkformulae.F
1867      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1868      - updated adjoint/makefile and relevant verif. accordingly
1869    
1870    checkpoint50f_pre
1871     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1872          + change Evap over land. (update aim.5l_cs output)
1873     o added missing .cvsignores and made uniform across expts
1874     o changed configuration of tidal_basin_2d expt
1875     o added pkg/debug functions for tracing code in fatal crashes
1876     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1877     o new fn in pkg/monitor to stop model if solution grows too big
1878     o removed lots of single quotes from comments
1879    
1880    checkpoint50e_post
1881    o make KPP work with PTRACERS
1882     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1883       nearly a copy of kpp_transport_s
1884     - there is no analogue to SurfaceTendencyS, so I have to use
1885       gPtr(of the surface layer) instead
1886    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1887    checkpoint50e_pre
1888    
1889    checkpoint50d_post
1890    o change kpp output from multiple-record state files to single-record state
1891      files analogous to write_state.F
1892    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1893      analogous to the cg2d-related output.
1894    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1895      so that writing to internal file fn (with length 512) fails.
1896    checkpoint50d_pre
1897    
1898    checkpoint50c_post
1899    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1900    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1901    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1902    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1903    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1904    
1905    checkpoint50c_pre
1906    Merging from release1_p13:
1907    o bug fix for pkg/seaice dynamic solver
1908    o Added SEAICE_initialHEFF to pkg/seaice
1909    
1910    checkpoint50b_post
1911    o store u*,v* in gU,V instead of in guNm1,gvNm1
1912    o in order to put the momForcing out of the Adams-Bashforth:
1913      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1914      to timestep.F
1915    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1916    o re-generate output for highly sensitive test-exp:
1917       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1918    
1919    checkpoint50b_pre
1920    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1921    o corrected CPP option mismatch in exf_Bulk... functions for case
1922      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1923    
1924    checkpoint50a_post
1925    o Bug fix for merging between c50 and KPP.
1926      ikey was passed from thermodynamics to kpp_calc via
1927      common block rather than being recomputed in kpp_calc,
1928      in contradiction with new key itdkey.
1929      New key ikppkey created, and tamc.h headers updated.
1930    
1931    checkpoint50
1932    - 2nd step of merge with ecco-branch:
1933      merge changes in ecco-branch back into main trunk
1934    - bug fix in find_alpha
1935    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1936    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1937    - merged some sliced AD support routines
1938    
1939    checkpoint49
1940    merged from ecco-branch:
1941    o exf:
1942      - Enable initialisation of forcing fields to constant
1943        (runtime) values.
1944      - in exf_getffields.F
1945        Reduce i-/j-loop to interior domain, discarding overlaps.
1946        That also fixes wrong TAF-key computations for key_1, key_2
1947        with bulf formulae.
1948      - exf_init.F modify #ifdef for exf_init_evap
1949      - exf_getffieldrec.F, ctrl_getrec.F
1950        The following INT-usages are not safe:
1951          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1952          fldcount = int(fldsecs/fldperiod) + 1
1953        and were modified.
1954    o autodiff: checkpoint_lev...
1955      - updated storing for bulk formulae (some arrays were missing)
1956      - added state for seaice package
1957      - synchronized with main branch
1958    o DIVA:
1959      Modif.s in
1960      - the_main_loop.F
1961      - the_model_main.F
1962      and added cost_final_restore.F cost_final_store.F
1963      o With these changes, it is possible to fully separate
1964        the first forward run to compute the cost function (mdthe_main_loop)
1965        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1966        into separate model executions.
1967        This enables better tuning of DIVA to given queue sizes.
1968      o Loss of cost function value in consecutive DIVA runs is
1969        fixed by storing to 'costfinal' file.
1970      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1971        beginning/end of adjoint integration is accounted for.
1972      The current changes apply to TAF-1.4.26.
1973      TAF has one remaining bug, requiring one manual change
1974      (see MITgcm manual).
1975    o cal: synchronized between MAIN and ecco-branch
1976    
1977    checkpoint48i_post
1978    o Changes to restore differentiability of code w.r.t. previous tag
1979      (mostly adding new routines to make list and replacing
1980      pressure by totPhiHyd).
1981    o Updated and merged grdchk package
1982      - has both ADM and TLM checks
1983      - works for single- and multi-proc.
1984      - output cleaned
1985      - worked successfully for parallel DIVA
1986    o genmake:
1987      - Adding -platform=SP4
1988      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1989    o Modif. for DIVA:
1990      ctrl_unpack should not be called in intermediate DIVA interval.
1991      (similar thing would apply for active files such as
1992      tbar, sbar, psbar, which should not be reinitialised;
1993      only relevant for ecco-branch)
1994    
1995    checkpoint48h_post
1996    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1997    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1998    o Added SEAICE_initialHEFF to pkg/seaice
1999    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2000    
2001    checkpoint48g_post
2002    --- EOS:
2003    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2004      store total Potential in totPhyHyd for diagnostics & EOS.
2005    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2006    --- Pressure/geopotential gradient:
2007    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2008    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2009      ( changes results of global_ocean_pressure )
2010    o NLFS + z-coord.: add eta*Rho' contribution.
2011    o accurate phiHyd when using interface-W at the middle between 2 centers
2012     ( changes results of ideal_2D_oce )
2013    o includes r* 2nd term in potential gradient.
2014    
2015    checkpoint48f_post
2016    Merging from release1_p12:
2017    o Modifications for using pkg/exf with pkg/seaice
2018      - improved description of the various forcing configurations
2019      - added basic radiation bulk formulae to pkg/exf
2020      - units/sign fix for evap computation in exf_getffields.F
2021      - updated verification/global_with_exf/results/output.txt
2022    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2023      (SBO) core products, including oceanic mass, center-of-mass,
2024      angular, and bottom pressure (see pkg/sbo/README.sbo).
2025    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2026      to avoid negative values in shallow regions.
2027      - updated verification/natl_box/results/output.txt
2028      - updated verification/lab_sea/results/output.txt
2029    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2030    o Added useSingleCpuIO option (see PARAMS.h).
2031    o Updated useSingleCpuIO option in mdsio_writefield.F to
2032      work with multi-field files, e.g., for single-file pickup.
2033    o pkg/seaice:
2034      - bug fix in growth.F: QNET for no shortwave case
2035      - added HeffFile for specifying initial sea-ice thickness
2036      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2037    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2038      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2039    o pkg/seaice:
2040      - adjoint-friendly modifications
2041      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2042    
2043    checkpoint48e_post
2044    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2045    o dynamics: change definition of computational domain & adapt mom_fluxform
2046      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2047    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2048        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2049        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2050        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2051        inverted_barometer solid-body.cs-32x32x1
2052      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2053    
2054    checkpoint48d_post
2055    o in preparation for r*:
2056     a) use pre-computed gradient of hydrostatic potential:
2057        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2058     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2059        => affects results of glob_oce_pressure (different truncation error)  
2060      update output.txt of ideal_2D_oce & global_ocean_pressure
2061    
2062    checkpoint48d_pre
2063    o in preparation for r*:
2064      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2065      pass the 2 comp. of the grad. as arguments to momentum S/R.
2066      but for the moment, only used if it does not change the results.
2067    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2068    
2069    checkpoint48c_post
2070    Modifications in treatment of initial flux forcing controls
2071    to avoid extra storing of flux fields.
2072    
2073    checkpoint48c_pre
2074    o Added tidal_basin_2d experiment (currently 1D!)
2075    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2076    
2077    checkpoint48b_post
2078    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2079     (modification to pressure gradient not yet implemented)
2080    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2081      (for U & V) that are used for vertical advection of momentum.
2082    
2083    checkpoint48a_post
2084    o In preparation for r*, use temp. array to compute vertical transport
2085       in flux-form momentum pkg. => change results of few test-exp.
2086      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2087                        lab_sea, natl_box & plume_on_slope
2088    
2089    checkpoint48
2090    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2091    
2092    checkpoint47j_post
2093    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2094    o moved adexch from forward_step to addummy_in_stepping
2095    o added exch in ctrl_map_...
2096    o aveFreq.=0. at end of cost_final to avoid overwrite in
2097      reverse checkpointing loop
2098    o Yet more changes in gmredi:
2099      * adgmredi_calc_tensor
2100        avoiding all recomputation of gmredi_slope_limit
2101      * adgmredi_x/y/rtransport
2102        added flag for excessive storing to avoid recomp. of
2103        u/v/rtans, dTdx/y/z
2104        -> this is not really necessary and very memory-consuming
2105      * adgmredi_slope_psi:
2106        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2107      * gmredi_slope_limit
2108        re-activated full calculation of taperfct for case 'ac02'
2109    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2110    
2111    checkpoint47i_post
2112    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2113    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2114      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2115    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2116    o gmredi: fix few bugs.
2117    
2118    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2119    This will be a good checkpoint to plug into the ecco-branch.
2120    o few modif.'s to get latest version adjointed
2121      (mainly kick out code in ini_linear_phisurf)
2122    o modif's to run adjoint with exactConserv
2123    o case GM_BOLUS_ADVEC should be cleaned
2124      S/R gmredi_slope_psi should be cleaned
2125    o verification/carbon now has exactConserv=.TRUE.
2126    
2127    checkpoint47g_post
2128    o time-average AIM output: becomes independent from statvars time-average
2129      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2130    o After TAF bug fix:
2131      Tested adjoint of gmredi package.
2132      Tests were done with checkpoint47 rather than with latest
2133      checkpoint47f_post since the latter is broken for the adjoint
2134      verification/carbon/ contains both ADM and TLM gradient checks.
2135    Here they are, before they get changed/lost/stolen.
2136    Mostly modif.'s to fix numerical sensitivities.
2137    Gradient checks OK for
2138    - GM_taper_scheme:
2139      * clipping
2140      * ac02
2141      * linear
2142      * glw91
2143      * dm95
2144      * ldd97
2145    - GMREDI_OPTIONS:
2146      * GM_VISBECK_VARIABLE_K
2147      * GM_NON_UNITY_DIAGONAL
2148      * GM_EXTRA_DIAGONAL
2149      * GM_BOLUS_ADVEC
2150    in conjunction with data.gmredi parameters to be checked in
2151    in a few minutes under verification/carbon/code/
2152    
2153    checkpoint47f_post
2154    Merging from release1_p10:
2155    o modifications for using pkg/exf with pkg/seaice
2156      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2157        and SEAICE_EXTERNAL_FLUXES
2158      - pkg/exf CPP options EXF_READ_EVAP and
2159        EXF_NO_BULK_COMPUTATIONS
2160      - usage examples are Experiments 8 and 9 in
2161        verification/lab_sea/README
2162      - verification/lab_sea default experiment now uses
2163        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2164    
2165    checkpoint47e_post
2166    o created a tag prior to creating a branch
2167    
2168    checkpoint47d_post
2169    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2170      at the bottom boundary had an erroneous half slip boundary condition
2171    o added bottom drag and no slip boundary condition capabilities to
2172      oceanic pressure coordinates code
2173    o added new verification experiment global_ocean_pressure, this experiment is
2174      also described in the tutorial section of the manual
2175    checkpoint47d_pre
2176    
2177    checkpoint47c_post
2178    o Added a verification experiment for a global cubed-sphere ocean run
2179      -  verification/global_ocean.cubed32x32x30
2180      -  uses pkg/therm_seaice and pkg/bulk_forcing
2181    
2182    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2183    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2184      when using P-coordinate; only implemented for atmospheric config.
2185    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2186      NOTES: requires option NONLIN_FRSURF to be "#define".
2187    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2188    
2189    checkpoint47b_post
2190    Merging from release1_p9:
2191    o pkg/seaice
2192      - removed GOTO's and added taf directives
2193      - double precision constants to reduce the g77 (Linux)
2194        to F77 (SGI) differences reported in release1_p8
2195    o tools/genmake
2196      - added SGI options
2197    o verification/testscript
2198      - updated to that of checkpoint47a_post
2199    o verification/global_ocean.90x40x15/input/eedata
2200      - modified for SGI f77 compatibility
2201    o verification/lab_sea
2202      - added description of sea-ice model
2203      - added missing matlab routines
2204      - added test of thermodynamics parallelization
2205    
2206    checkpoint47a_post
2207    o new pkg: aim_v23
2208     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2209       for now, keep the same surface forcing as before.
2210     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2211     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2212     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2213    o add diagnostic of surface correction term in monitor output
2214    
2215    o bulk_force and therm_seaice
2216    - Two packages:  bulk_force (Bulk forcing)
2217      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2218    - Earlier integration from Stephaine Dutkiewicz
2219      and Patrick Heimbach.
2220    - Two ifdef statements for compile time,
2221       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2222    
2223    checkpoint47
2224    differentiable version of checkpoint46n_post
2225    o bug fix in quasihydrostaticterms
2226    o * "clean" adjoint code (in terms of extensive recomputations)
2227        can now be obtained for all GMREDI options (i.e. for
2228        - GM_VISBECK_VARIABLE_K
2229        - GM_NON_UNITY_DIAGONAL
2230        - GM_EXTRA_DIAGONAL
2231        - GM_BOLUS_ADVEC )
2232      * However, wrong gradient check problem remains unsolved.
2233      * New CPP options have been introduced for different
2234        tapering schemes
2235    o external_fields_load now part of differentiation list
2236    o pressure needs multiple storing;
2237      would be nice to have store_pressure at beginning or
2238      end of forward_step, e.g. by having phiHyd global (5-dim.)
2239      (NB: pressure is needed for certain cases in find_rho,
2240      which is also invoked through convective_adjustment).
2241    o recomputations in find_rho for cases
2242     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2243    o #define ATMOSPHERIC_LOADING should be differentiable
2244    o ini_forcing shifted to begining of initialise_varia
2245    o Incorporating QNVS line search routines into MITgcm
2246      (this is separate code, and therefore not under pkg)
2247      lsopt/, optim/
2248    o Updated verification/carbon/
2249      - #define GM_VISBECK_VARIABLE_K
2250      - GM_taper_scheme    = 'ldd97'    
2251    
2252    checkpoint46n_post
2253    Merging from release1_p8:
2254    o verification/natl_box:
2255      updating new external_fields_load routine
2256    o New package: pkg/seaice
2257      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2258      The sea-ice code is based on Hibler (1979-1980).
2259      Two sea-ice dynamic solvers, ADI and LSR, are included.
2260      In addition to computing prognostic sea-ice variables and diagnosing
2261      the forcing/external data fields that drive the ocean model,
2262      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2263      The implied surface heat flux is then stored in variable
2264      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2265      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2266      non-local transport term.  Because this call precedes model
2267      thermodynamics, temperature under sea-ice may not be "exactly" at
2268      the freezing point by the time theta is dumped or time-averaged.
2269      N.B.: fairly large differences in accuracy occur across
2270            different platforms/compilers; comparison between
2271            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2272            generated output gives:
2273       T           S           U           V
2274      C D M    c        m  s        m  s        m  s        m  s
2275      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2276      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2277      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2278    
2279      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2280    o GAD:
2281      - generated new common blocks to account for call of
2282        same gad routines with differing traceridentities
2283        (needed to modify tracerIdentity indices in GAD.h)
2284      - generated separate common blocks for case useCubedSphereExchange
2285        (Department of Futurology)
2286      - parameter lists to gmredi_?transport: added tracerIdentity
2287      - added new key indices to tamc.h
2288    o external_fields_load:
2289      - added this routine to TAF list
2290      - needed to make some common blocks global and additional storing
2291        along the same lines as exf package (checkpoint_lev?_directives.h)
2292    o exf:
2293      updated external forcing package
2294      - bug fixes carried over from ecco-branch
2295        (missing OBCS_OPTIONS.h in two routines)
2296      - enable easy to use "no forcing".
2297      - added exf I/O for atmospheric loading
2298      - added exf I/O for runoff data
2299      - transfered scaling between exf <-> MITgcm to exf namelist
2300    o Adding new verification experiment global_with_exf.
2301      This verification experiment is almost identical to the
2302      global_ocean.90x40x15 experiment, except that it uses
2303      the exf (and cal) package instead of the
2304      external_fields_load routine (cf README file).
2305    
2306    checkpoint46m_post
2307    o modified testscript to return -- when there are no lines of "%MON" output
2308    o added new flag "quasiHydrostatic" for QH mode
2309      and new routine quasihydrostaticterms()
2310    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2311      New routine: mom_u_coriolis_nh()
2312    o fixed sign of non-hydrostatic metric terms in u and v equations.
2313      Depend on correct sign of gravitySign.
2314    o added work.pc* to .cvsignore in aim directories using ifc
2315    o introduced flag for controllin non-hydrostatic metric terms
2316    o removed gravitySign from PARM04
2317    o switched to g77/ifc from pgf77 in aim experiments
2318    
2319    checkpoint46l_post
2320    o made convective adjustment work with pressure coordinates:
2321     - changed the direction of k-loop in convective_adjustment.F for the
2322       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2323     - adjusted the reference pressure k-index in convective_adjustment.F
2324     - adjusted the convection condition in convect.F (in analogy to
2325       calc_ivdc.F)
2326     - convective_adjustment no longer computes anything on the halos
2327     - removed the warnings about negative salinity from find_rho.F and
2328       find_alpha.F; instead the new routine look_for_neg_salinity, called
2329       at the beginning of find_rho, find_alpha, and find_beta, does a
2330       check of the entire slice, if CPP-option
2331       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2332    checkpoint46l_pre
2333    
2334    checkpoint46k_post
2335    o fixed the verification/global_ocean.90x40x15 experiment:
2336     - new bathymetry (the world according to A., JMC, and M.)
2337     - new initial fields and forcing fields (*.bin files)
2338     - new POLY3.COEFFS (for the next release one should switch to a full
2339       equation of state: JMD95P or MDJWF)
2340     - fixed several errors and redundancies in the data file
2341     - experiment uses looped cells
2342     - added matlab directory with diagnostic scripts for plotting of output
2343    
2344    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2345     - read AIM physics parameters from a file (data.aimphys)
2346     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2347    
2348    checkpoint46j_post
2349    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2350    o move wVel computation at the end of the time step, in S/R integr_continuity
2351    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2352    o update timeave pkg for wVel diagnostic.
2353    checkpoint46j_pre
2354    
2355    checkpoint46i_post
2356    o Clean up AIM package (and keep the results unchanged):
2357      include CPP_OPTION and use IMPLICT NONE in all routines ;
2358      declare all the variables _RL ; use _d 0 for all numerical constants.
2359      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2360    
2361    checkpoint46h_post
2362    o cleaned up the use of rhoNil and rhoConst.
2363      - rhoNil should only appear in the LINEAR equation of state, everywhere
2364        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2365        and the dynamical equations are all divided by rhoConst
2366    o introduced new parameter rhoConstFresh, a reference density of fresh
2367      water, to remove the fresh water flux's dependence on rhoNil. The default
2368      value is 999.8 kg/m^3
2369    o cleanup up external_forcing.F and external_forcing_surf.F
2370      - can now be used by both OCEANIC and OCEANICP
2371    checkpoint46h_pre
2372    
2373     Added code to convert surface volume flux (fresh water) into
2374     a mass flux when using P coordinates in the ocean (OCEANICP).
2375     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2376    
2377    checkpoint46g_post
2378    o Include a new diagnostic variable phiHydLow for the ocean model
2379      - in z-coordinates, it is the bottom pressure anomaly
2380      - in p-coordinates, it is the sea surface elevation
2381      - in both cases, these variable have global drift, reflecting the mass
2382        drift in z-coordinates and the volume drift in p-coordinates
2383      - included time averaging for phiHydLow, be aware of the drift!
2384    o depth-dependent computation of Bo_surf for pressure coordinates
2385      in the ocean (buoyancyRelation='OCEANICP')
2386      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2387        Theta, Salinity, and Pressure in the parameter list. This routine is
2388        presently contained in find_rho.F. This routine does not give the
2389        correct density for 'POLY3', which would be a z-dependent reference
2390        density.
2391    o cleaned up find_rho
2392      - removed obsolete 'eqn' from the parameter list.
2393    o added two new verification experiments: gop and goz
2394      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2395    checkpoint46g_pre
2396    
2397    checkpoint46f_post
2398    o Enable tangent linear (forward mode) gradient checks:
2399      - extended active file handling to g_... files
2400      - added TANGENT_SIMULATION to theSimulationMode
2401      - extended grdchk package accordingly
2402    o added tangent linear setup in verification/carbon/code_ftl
2403    o added adjoint setup in verification/front_relax/code_ad
2404    
2405    checkpoint46e_post
2406    o Added new equation of state -> MDJWF
2407      - EOS of McDougall et al., 2002, JAOT, submitted
2408      - caveat: the equation of state is only valid for a smaller (more
2409        realistic?) range of values than JMD95P/Z and UNESCO
2410      - added masks to the calculation of pressure in store_pressure
2411      - added more check values for density in check_eos (ini_eos.F), some of
2412        the old check values are out of the range of the MDJWF-eos, so don't
2413        expect perfect matches for those
2414    checkpoint46e_pre
2415    
2416    checkpoint46d_post
2417    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2418      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2419      case of pressure coordinates. eosType='JMD95Z' in
2420      combination with buoyancyRelation='OCEANICP' now causes an error.
2421    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2422      in find_alpha/beta.
2423    checkpoint46d_pre
2424    
2425    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2426      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2427    
2428    checkpoint46c_post
2429    o Changes necessary for ocean in p-coordinates
2430     -  Added new buoyancy relation = 'OCEANICP'
2431     -  Added new parameters = gravitySign (this used to be contained inside
2432        the factor dRdZ which I added when we first switched to R coordinates).
2433     X GM/Redi is not compatible (yet)
2434     X bottom drag and no-slip need to be debugged.
2435    checkpoint46c_pre
2436    
2437    checkpoint46b_post
2438    o Added new equation of state -> JMD95Z and JMD95P
2439      - EOS of Jackett and McDougall, 1995, JAOT
2440      - moved all EOS parameters into EOS.h
2441      - new routines ini_eos.F, store_pressure.F
2442    o Added UNESCO EOS, but not recommended because it requires
2443      in-situ temperature (see JMD95)
2444    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2445      unesco.f to be used with POLY3
2446    checkpoint46b_pre
2447    
2448    checkpoint46a_post
2449    o Added (atmospheric) pressure loading
2450      - new field in FFIELDS.h, etc...
2451      - new cpp flag ATMOSPHERIC_LOADING
2452    o Changed hFacC to _hFacC in calc_phi_hyd.F
2453    o Added SHORTWAVE_HEATING to some files for consistency
2454    checkpoint46a_pre
2455    
2456    checkpoint46
2457    further merges from release1_p5
2458    o new ctrl package
2459      - adopted from ECCO environment to enable optimization
2460      - added Eliassen Palm fluxes to controls
2461    o added Eliassen Palm flux controls to gradient check package
2462    o cost package
2463      - Compatible with new ctrl package
2464      - added Eliassen Palm cost hooks
2465      - modif's of existing cost functions
2466    o Adjoint-related bug fixes in kpp:
2467      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2468      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2469    o autodiff package
2470      - flow directives:
2471        + new for S/R do_the_model_io
2472        + enhanced for S/R checkpoint
2473        + new gmredi.flow
2474      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2475        disable adcommon.h/g_common.h by default.
2476      - fixed problem for adjoint of global_max
2477    o modified verification/carbon/
2478    o New setup for adjoint of global_ocean
2479    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2480    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2481    o incorporated hooks for sponge layer code (external_forcing.F)
2482    
2483    checkpoint45d_post
2484    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2485    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2486      (affects plume_on_slope "cg2d" output)
2487    o add new parameter deltaTfreesurf for free-surface time stepping
2488    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2489    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2490    o change phiMin in exp1 (to agree with documentation)
2491    o add new flags:
2492     - T,S forcing inside/outside Adams-Bashforth
2493     - turn off temp,salt advection and/or forcing
2494     - for each tracer, define internal flag for multiDimAdvection & A-B
2495    o monitor: change definition of KE to check conservation of Energy
2496    
2497    checkpoint45c_post
2498    o Removed f90 comments ("!")
2499    o Modified initialisations to enable exf package for MITgcm
2500      (without invoking ECCO_PACKAGE).
2501    o modifications to gradient check package (Martin Losch)
2502      - enable centered differences
2503      - modified format of standard output
2504    
2505    checkpoint45b_post
2506    o cleaned exchange calls in cg2d
2507    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2508    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2509      to configure barotropic setup (Martin Losch)
2510    o moved some initialisations within bi,bj loop in dynamics
2511      (TAF flow dependency)
2512    o in initialise_varia, moved call packages_init_variables
2513      before convective_adjustment_init
2514      (corresponding adjustment of TAF tape initialisation).
2515    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2516    
2517    checkpoint45a_post
2518    o compute Rho over the whole domain (extend iMin,jMin indices)
2519    o specific exchange for X-slice domain (case Ny=1)
2520    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2521    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2522    
2523    checkpoint44h_post = checkpoint45
2524    o Fix to restore differentiability:
2525      place at which packages_init_variables is called in
2526      initialise_varia is crucial for reverse control flow.
2527    o modifications in GMRedi to enable stable adjoint
2528      (corresponding modif's in thermodynamics, dynamics)
2529    o added missing hook for sponge layer code in external_forcing
2530    o modified test cost functions
2531    o storing in gad_advection (plus removal of write(0,*)!
2532    o missing headers TR1.h added in convective_adjustment routines
2533    o errorMessageUnit set non-equal zero in eeboot
2534      (conflict on some platforms, e.g. IBM SP3)
2535    o modified carbon verif.
2536    
2537    checkpoint44h_pre
2538    o vertical grid option: allow to put the Interface at the middle between
2539      2 cell-centers ; replace delZ in pkg/kpp by drF.
2540    o GM Advective form: Tracers are advected using the residual transport (=
2541      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2542    
2543    checkpoint44g_post
2544    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2545      results) ; ifdef missing in thermodynamics.F
2546    
2547    checkpoint44f_pre,checkpoint44f_post
2548    o added PTRACERS package
2549      This allows an arbitrary number of passive tracers to be integrated
2550      forward simultaneously with the dynamicaly model.
2551      + Implemented so far:
2552        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2553        - I/O and checkpointing
2554        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2555      + Not implemented so far:
2556        - KPP
2557        - OBCS
2558      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2559        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2560        line in data.pkg.
2561      + This package is disabled by default since it increases storage.
2562    
2563    
2564    o testscript: added -cleanup option
2565    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2566                 b) enable to filter 2D fields.
2567    
2568    checkpoint44e_pre,post
2569    o re-wrote convective adjustment to use pre-calculated weights
2570      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2571      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2572      Original calls to convect() still in place.
2573    
2574    chkpt44d_pre,post
2575    o added missing EXCLUDE_MONITOR flags
2576    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2577      (incompatible typ in MIN/MAX expressions caused problems
2578      on IBM SP3)
2579    o in genmake added variable MAKEDEPEND
2580      plus resetting for case SunOS
2581    o added timer_stats.c routine for IBM SP3
2582    o removed variables in dynamics
2583    !!! I forgot to create tag chkpt44d_pre !!!
2584    !!! But chkpt44d_pre = chkpt44c_post    !!!
2585    
2586    o real fresh water flux implemented with non-linear free-surface.
2587    
2588    chkpt44c_pre,post
2589    o few fix (mask in shap_s2, EmPmR in external_field_load,
2590      USE_NATURAL_BCS in solve_for_P);
2591    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2592    
2593    checkpoint44b_pre/_post
2594    o merge of relevant stuff from the ecco-branch:
2595      - genmake: removed $S64 overwrite for case SunOS
2596      - pkg/exf: update and corrections for field swapping and obcs
2597      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2598                  harmonized between ECCO and MITgcm
2599      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2600                      updated checkpointing_lev... lists for obcs
2601      - model/src: minor changes in forward_step, plot_field
2602                   added directive for divided adjoint in the_main_loop
2603      - pkg/mdsio: added mdsio_gl_slice
2604    
2605    o check parameters & config (chkpt44a_pre,post)
2606    o OBC and NonLin_FrSurf.
2607    
2608    checkpoint44
2609    o fix bug in mom_vi_del2uv
2610    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2611    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2612    o update AIM experiments (NCEP input files)
2613    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2614    o added some stuff for AD
2615    
2616    checkpoint43
2617    o added two new advection tests
2618    o added global 4x4 degree ocean test
2619    o added test of H&S94 with free surface on cube
2620    o some final mods for gradient check, adjoint,...
2621    
2622    checkpoint42
2623      Fixed AD-related problems:
2624    o Store directives up-to-date with re-arranged Adams-Bashforth
2625      (mainly thermodynamics.F)
2626    o New store directives for multi-dim. advection schemes
2627      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2628      * new common block and key passkey
2629      (mainly gad_advection.F)
2630    o Modified store directives for split of dynamics/thermodynamics
2631      for the case ALLOW_KPP
2632    o Cleaned argument list for timestep_tracer.F
2633    
2634    checkpoint41
2635    o re-formatted/added comments in prologues of key subroutines
2636      to work with protex
2637    
2638    checkpoint40
2639    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2640    o added FLT (floats) package from Arne along with demo. experiment
2641    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2642      implementation of forward-in-time forcing terms
2643    o more mods for non-linear free-surface including new variable
2644    o modified multi-dim method to work on cube
2645    o bug fix in KPP (from DM)
2646    
2647    checkpoint40pre9
2648    o added DST advection schemes
2649    o fix MPI bug on SGI's
2650    o modifications for non-linear free-surface
2651    o fixed conditionals for fixed flow/passive tracer only mode
2652    o added tension/strain form of stress tensor
2653    o changes to commenting of arguments for TAF/TAMC
2654    o added/updated many matlab scripts
2655    o added multi-dimensional advection method for tracers
2656      
2657    checkpoint40pre8
2658    o new package rw/
2659      Added method for dumping intermediate local arrays:
2660      mdsio_writetile - same as mdsio_writefield except works from inside
2661                        bi,bj loop
2662      mdsio_writelocal - same as mdsio_writetile except works for local
2663                         arrays
2664      write_local_r? - higher-level wrapper for mdsio_writelocal
2665      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2666      Example given at end of mom_vecinv.F that dumps some local arrays.
2667    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2668      control flux-form versus vector invariant code.
2669      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2670      or genmake -DISABLE ...
2671    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2672      (additional storing is now needed for case vecinv;
2673      currently nothing implemented to switch this storing off
2674      in case fluxform is used since no CPP flag available).
2675    
2676    checkpoint40pre7
2677    o bug fix in dynamics.F
2678      calc_viscosity called before k=1,Nr loop.
2679    o added some #ifdef's ALLOW_PASSIVE_TRACER
2680    o cleaned initialisations in ctrl_map_ini
2681      related to TAF
2682    
2683    checkpoint40pre6
2684    o split dynamics into thermodynamics & dynamics
2685    o corresponding split of calc_diffusivity into
2686      calc_diffusivity, calc_viscosity
2687      (kpp_calc_diff, kpp_calc_visc).
2688    o Added diffkr, kapgm to control variables
2689    o bug fix in gmredi_slope_limit for ldd97
2690    
2691    checkpoint40pre5
2692    o proper initialization of Adams-Bashforth time stepping
2693      + uses forward step for very first step of model (iter=0)
2694    o re-generated *all* output since almost all output is modified by this
2695      change (sorry but we've been putting this one off for about 2 years)
2696      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2697        *not* regenerated since they are already out of date and I don't
2698        want to create the impression that they are suddenly working.
2699    o removed KAP stuff for DEC's
2700    o modified/added many .cvsignore files in */code and */input
2701    o added new expt "solid-body.cs-32x32x1"
2702      + this uses an alternative form of ini_curvilinear_grid.F which
2703        is not necessarily any better than the current one...
2704    
2705    checkpoint40pre4
2706    o added re-initialisations of utrans,vtrans,rtrans in
2707      calc_common_factors which are crucial for TAF.
2708    o extended iMin,jMin range for calc_common_factors,
2709      calc_diffusivity
2710    o added option ALLOW_PASSIVE_TRACER
2711    o a few minor updates and fixes
2712    
2713    checkpoint40pre3
2714    o created calc_gtr1.F for gad package
2715    o split the_main_loop and re-introduced forward_step
2716    o some recomputations of nIter0 for TAMC
2717    
2718    checkpoint40pre2
2719    o Updated to latest branch of AJA, JMC
2720    o Added gradient check package
2721    o Added routines for passive tracer handling
2722    o Added carbon sequestration sensitivity experiment
2723    
2724    checkpoint39
2725     o Modifications and fixes to support TAMC
2726       (mainly missing or wrong directives)
2727     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2728       in addummy_in_stepping
2729     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2730     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2731     o Included following packages:
2732       cal: calendar
2733       exf: external forcing
2734       ecco: essential routines to control use of cal, exf
2735             (NB: this is not the full ECCO environment)
2736     o disabled some packages by default in genmake
2737    
2738    checkpoint38
2739     o see notes_c37_adj.txt
2740     o corrected wrong layer index in external_forcing_t
2741     o replaced the_main_loop/forward_step by the_main_loop
2742     o removed forceoutput from write_state
2743       (replaced criteria for initial/final state)
2744     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2745    
2746    checkpoint37
2747     o mdsio.F routine split and packaged in pkg/mdsio
2748       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2749        used unless genmake -disable=mdsio)
2750     o allow a more precise surface-geopotential gradient for the atmosphere
2751       taking into account the change in space of Alpha (=1/rho) at the surface.
2752     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2753       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2754     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2755       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2756       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2757     o Time-Average diagnostics defined as a pseudo package "timeave".
2758     o pickup files : old pickup (before c35) did not work with new code (c35
2759       and after) unless activating 2 commented lines in initialise-varia.
2760     o Non-Hydrostatic pickup file Pb fixed.
2761     o bug with Rigid-lid version (since c35) fixed.  
2762    
2763    checkpoint36
2764     o implement Crank-Nickelson barotropic time-stepping
2765     o recover Time-Average diagnostics
2766     o fix Pb in checkpoint (PR#19)
2767     o AIM become a standard package ; clean unused CPP_kees
2768    
2769    checkpoint35
2770     o subtantial rewrite of dynamics.f
2771     o allows staggered time-stepping
2772     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2773     o added bottom drag (linear + quadratic)
2774    
2775    checkpoint34
2776     o Modified exchange routines for correct reverse simulation.
2777     o Added verification output to comply with bug fix in impldiff.F
2778       as of c33 (exp2, natl_box).
2779     o Corrected store directives in dynamics.F
2780     o Corrected array boundaries in impldiff.F
2781     o Corrected array dimensions in gmredi.
2782       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2783     o Added routine GLOBAL_SUM_INT to global_sum.F
2784     o Added mdsio_gl.F for ECCO purposes.
2785    
2786    checkpoint33
2787     o Fixed bug in lower BC in impldiff.F
2788     o Fixed confusion about units of forcing arrays in FFIELDS.h
2789       namely Fu,Fv,Qnet,Qsw,EmPmR:
2790       - Removed verification/natl_box/code/external_fields_scale.F
2791         (did not differ from that in model/src)
2792       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2793         (see FFIELDS.h for description)
2794       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2795         kpp_calc.F and kpp_transport_t.F
2796       - Removed model/src/external_fields_scale.F and calls to it
2797       - verification/natl_box uses flux data with "atmospheric" sign so
2798         a special version of external_fields_load.F is used to
2799         change the data as it's read in. This way, the arrays
2800         have the right units and signs at all times tha a user could
2801         possibly use them.
2802     o Corrected genmake to delete a temporary file during configuration
2803    
2804    checkpoint32
2805     o Scaling of forcing fields moved from external_forcing.F to
2806       external_fields_scale.F, called directly after loading fields.
2807     o Surface relaxation terms added to surface tendency fields in
2808       extra subroutine.
2809     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2810       fields.
2811     o Changes in GMRedi to comply with packaging structure.
2812     o Modifications and bug fixes in KPP package.
2813     o Verification experiment for KPP added (verification/nat_box/)
2814    
2815    checkpoint31
2816     o Packages interface brought in line with defined standard
2817       -> new routines packages_...F
2818       -> changes in initialise_fixed.F, initialise_varia.F
2819       -> enables initialisation interface for ECCO package
2820     o Rescaling of external forcing fields immediately after read
2821       (removed from external_forcing.F)
2822       -> new: surface_fields_scale.F
2823       -> affects ini_foorcing.F, external_fields_load.F
2824     o Computation of surface tendencies before tendency updates.
2825       -> new: external_forcing_surf.F
2826     o Change of variable names useGMRedi, useKPP, useECCO
2827     o Further changes in dynamics.F, impldiff.F for TAMC
2828     o Tested for experiments 0, 2, 4.
2829       - not yet tested for GMRedi.
2830       - not yet tested for KPP.
2831    
2832    checkpoint30
2833     o Updates for OBCs
2834     o New experiment for test OBCs (internal_wave)
2835     o New output.txt in verification/exp4/results/
2836     o Updates for KPP: calculation of viscosity corrected, new variables
2837       kpp_dumpFreq and kpp_taveFreq
2838     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2839       and entry for T90 in genmake
2840    
2841    checkpoint29
2842     o packaged KPP and GM/Redi
2843    
2844    checkpoint28
2845     o Corrected initialization of hFacMin for difference vertical coordinates
2846     o Modified calculation of partial cell thickness to more robust algorithm
2847     o config_summary.F: replaced write_1D_... by write_0D_...
2848       read_write.F: added subroutines write_0D_...
2849     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2850       included some initialisations required for TAMC.
2851     o routine calc_isoslopes: modified sqrt computation to make it
2852       differentiable for zero argument.
2853     o routines dynamics, impldiff:
2854       included store directives and tape key computations required for TAMC.
2855     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2856    
2857    checkpoint27
2858     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2859       formulation works properly with variable resolution.
2860     o restructured the calling tree between the_model_main() and dynamics()
2861     o split initialise() into initialise_fixed() and initialise_varia()
2862     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2863       in new routine ini_psurf()
2864    
2865    checkpoint26
2866     o moved some #ifdef in optional routines to encompass everything
2867       except the argument declarations. This was using up some memory.
2868     o fixed macros like _ADT to work with both versions of Linux cpp
2869     o cleaned up some unused and uninitialized variables
2870       (helps when debugging with strict compile options)
2871     o split up CPP_EEOPTIONS.h into options and macros
2872       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2873     o patch for 2 processor JAM mode
2874    
2875    checkpoint25
2876     o updates for OBCs and NH
2877     o dramatically reduced memory usage
2878     o added "JAM" routines for use on Artic network
2879     o parameterization of convection by implicit vertical diffusion
2880     o added a diagnostic of convective index
2881     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2882       (this is was partly for OBCs and NH but also in anticipation of
2883        an explicit free-surface option)
2884     o initial state input files for U and V
2885    
2886    checkpoint24
2887     o Removed some spurious "REAL"s
2888     o Updated KPP to latest version from JPL
2889     o Added a COS(latitude) in horizontal viscosity
2890    
2891    checkpoint23
2892     o Added del^4 diffusion for salt and temperature
2893     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2894    
2895    checkpoint22
2896     o Made many small changes: implicit none, format(i5), etc...
2897     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2898    
2899    checkpoint21
2900     o Introduced new I/O package that supports direct-access records (mdsio.F)
2901     o Split-up mid-level I/O routines
2902     o Updated input data for experiments 0,1,2,4 and 5
2903     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2904    
2905    checkpoint20
2906     o Tidied up open-boundaries some more
2907     o Added non-hydrostatic code
2908     o Fixed some input data
2909     o Modified MPI start-up to work in "coupled" context.
2910    
2911    checkpoint19
2912     o Tidied up directory structure for verification experiments.
2913     o Added new code for open boundaries.
2914     o Corrected advective terms near boundaries.
2915     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2916     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2917     o Split default parameters out of ini_parms.F into set_defaults.F.
2918    
2919    checkpoint18
2920     o Further changes for optional code generation with
2921       CPP - ugh!
2922    
2923  checkpoint17  checkpoint17
2924   o Beginning to incorporating modularity   o Beginning to incorporating modularity
2925     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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