/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.681 by jmc, Thu Jun 15 23:36:48 2006 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
8    
9    checkpoint58j_post
10    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
11      from file (collects calls previously in FORWARD_STEP)
12    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
13    o adjoint store dir. adjusted accordingly
14    o genmake2
15      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
16    
17    checkpoint58i_post
18    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
19      on wind stress (SEAICEstressFactor defaults to 1.)
20    o Total number of Timers is finite (<=40): comment out 2 non-essential one
21      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
22    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
23      on CS-grid: no longer loosing mass.
24    o exf & curvilinear-grid: no longer modify longitude xC & xG.
25    o pkg/ggl90: fix sloppy output and fix a bug
26    o pkg/seaice: added SEAICEuseEVPpickup parameter
27      - Set to false in order to start EVP solver with
28        non-EVP pickup files when using SEAICEuseEVP
29      - fix sign error in diffusion in seaice_calc_rhs
30    
31    checkpoint58h_post
32    * Modifications for bottom topography control
33      o replace hFacC by _hFacC at various places
34      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
35      o add non-self-adjoint cg2d_nsa
36      o update autodiff support routines
37      o re-initialise hfac after ctrl_depth_ini
38      o works for 5x5 box, doesnt work for global_ocean.90x40x15
39    * Adding verification for 5x5 box (4-layer) bottom topography control
40    
41    checkpoint58g_post
42    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
43       used for mean seasonal cycle, mean diurnal cycle); add an example
44       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
45    o pkg/ggl90:
46      - add parameter (minimum surface kinetic energy)
47      - fix bug (avoiding division by zero)
48    o couple pkg/thsice to pkg/seaice:
49      - modify advection in seaice to accomodate new scalar fields to be advected
50      - only muliDimAdection scheme work with seaice/thsice
51      - mapping of thsice-variables to seaice-variables, back and forth
52      - does not break the verification experiments, but does not give the
53        desired results either
54    o pkg/seaice
55      - make (default) second order advection a bit less confusing?
56    
57    checkpoint58f_post
58    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
59      to pkg/seaice):
60      - new routines thsice_map_exf and thsice_get_exf provide the interface
61      - add an additional formal parameter to thsice_solve4temp
62    o pkg/exf:
63      - add new fields wspeed, snowprecip (to be able to couple to thsice)
64      - correct Stefan-Boltzmann constant
65      - new parameter for longwave surface emittance
66      - separate some stuff from exf_bulkformulae into new routines  
67        exf_radiation, exf_wind
68      - add new parameters and constants: longwave emissivity for ocean, ice
69        and snow, evaporation parameters over ice
70      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
71        either wind from stress or stress from wind
72    o pkg/thSIce:
73    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
74    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
75       and THSICE_CALC_THICKN
76    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
77    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
78      to make debugging easier.
79    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
80    o pkg/bulk_force:
81      - clean-up comments and parameters ;
82      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
83    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
84      generate new output for test-experiment: aim.5l_cs.thSI
85    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
86      testreport accordingly
87    
88    checkpoint58e_post
89    o SEAICE_CGRID adjoint done
90    o R_STAR adjoint implemented.
91      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
92      * need to sort out init. of h0facc, etc.
93    o Make pkg/profile fully independent of ecco,cost, etc. stuff
94      to be able to use it in pure forward.
95    
96    checkpoint58d_post
97    o upgrade simple test-experiment to tutorial example:
98     step.1: duplicate the experiment and (step.2) will remove the old copy.
99      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
100      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
101      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
102      tutorial_global_oce_biogeo    <- copy of dic_example
103      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
104      tutorial_plume_on_slope       <- copy of plume_on_slope
105      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
106      tutorial_global_oce_optim     <- empty for now (David ?)
107      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
108     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
109    o correct a sign problem in cost_scat.F
110    o obcs and ptracers: fix boundary conditions for advections schemes
111      with larger stencil
112    o thsice adjoint: start
113    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
114      completeness
115    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
116      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
117    o ptracers adjoint:
118      * avoid extensive recomputatations
119      * fix missing re-init. of gptr (missed by TAF)
120    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
121      me to turn off the excessive output to STDOUT that this package produces
122    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
123      and add those terms in Vector-Invariant formulation.
124    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
125      if the control period (xx_hfluxperiod etc) is 0
126    o in profiles pkg, clean routines and fix details
127    o in ecco pkg, reading ssh data:
128      fix problem in case the model does not start at iter0=0
129    o fix mnc-pickup/restart for ptracers
130    o new package prifiles:
131      code to compute profile-based cost by Gael Forget
132      (modifs in ecco, ctrl, autodiff)
133    o Benign bug fix in initialization (spotted by M. Mazloff) of
134      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
135    
136    checkpoint58c_post
137    o adjoint: finish NLFS adjoint and provide reference output in
138      verification/global_ocean.90x40x15/results_ad_nlfs
139    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
140      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
141      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
142      with SEAICE_CGRID defined.
143    o move calendarDumps from "data" to "data.cal" and clean-up the code
144      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
145    o add useEXF & useCAL flags (for now, set in hard-coded way)
146    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
147      (were missing in NH mode, and wrong in quasihydrostatic mode).
148      waiting for Chris updated version of calc_gw to add those CALLs.
149    o fix bug in quasihydrostatic S/R ;
150      add a test for this option: global_ocean.90x40x15.qshyd
151    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
152      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
153    o add on/off flag useOffLine for package OFFLINE
154    o seaice:
155      - modify advection so that it works also on the C-grid
156      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
157        problem in multi-tile runs with C-grid
158      - add flags for clipping ice velocities and/or masking solver forcing
159      - fix drag (ocean on ice) formulation and a bug that caused noise in the
160        C-grid solver
161      - added a few comments to seaice_diffusion.F
162      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
163        are now exclusive)
164      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
165        required re-ordering the code a little:
166       + make DAIRN global variable (defined in SEAICE)
167       + move computation of the viscosities eta and zeta into a new separate
168         routine (because I need to recompute them in seaice_ocean_stress.F)
169    
170    checkpoint58b_post
171    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
172      update output.txt of exp. aim.5l_cs.thSI
173    o various mnc cleanups and improvements:
174      + shrink lookup tables by factor of ~4
175      + better error reporting when running out of lookup space
176      + able to handle longer path/file names (up to 500 chars)
177    o adjoint:
178      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
179      - TBD: "hidden" mom_vecinv recomp. in dynamics
180    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
181     (allow to differentiate between forcing components using new integer flags:
182      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
183     and add new flag to put Dissipation tendency out of Adams-Bashforth.
184    o ecco
185      - enable trend removal from SSH anomaly obs.
186    o adjoint
187      - a fix for PmEpR when #undef EXACT_CONSERV
188      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
189      - try to fix "hidden" recomp. in forward_step for NLFS
190        (NLFS seems broken sometimes after I checked it in)
191    o seaice:
192     - add c-grid version of the dynamic solver:
193       + three new routines that are the c-grid substitute lsr, dynsolver
194         and ostres
195       + put a few fields that were local to dynsolver into global common
196         blocks, so that I can move the computation of stresses etc into
197         seaice_lsr (saves coding but may break the adjoint).
198     - replace more hardwired parameters by runtime parameters
199     - add ice masks that mask the rhs of the implicit solvers where there
200       is no ice (commented out in seaice_dynsolver, because i am not sure
201       if this works properly), eventually this should replace the clipping
202       of ice velocities in seaice_dynsolver to +/-40cm/s.
203    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
204      include it only where its needed
205    o move balancing of fluxes before the call of external_forcing_surf
206    o seaice:
207      - correct units of turning angles (now they are really in degrees)
208      - move computation of GWATX/Y out of main routine into dynsolver
209      - initialize GWATX/Y in seaice_init
210    o Apply mask on Fresh-Water flux (needed for SSH forcing).
211      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
212    o seaice: add runtime flags for turning angles (default to zero)
213    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
214      and trend from exf forcing and ctrl control adjustments
215    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
216      (since checkpoint57x_post)
217    o change the default rotation period to 86164.s = the Earth rotation
218    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
219      and based on a reference stratification. Tested within hs94.cs-32x32x5.
220    o seaice advection: add code for choosing between the default (2nd order
221      central differences) and multiDim advection schemes provided by
222      pkg/generic_advdiff
223    o seaice:
224      - removed all references to SEAICE_GRID.h fields from
225        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
226        (cubed-sphere configuration will change a little)
227      - grid computations in seaice_init are obsolete now.
228      - cleaned up code a little so that is easier to read (hopefully).
229      - added new (better?) discretizations of default advection and diffusion
230        (turn on with SEAICEuseFluxForm)
231      - replace 1 in 3d global fields by kSurface in growth.F
232      
233    checkpoint58a_post
234    o seaice:
235      - bug fix in advect.F
236    o shelfice:
237      - separate shelfice load anomaly from pload (breaks with time
238        dependent forcing), => introduce constant field shelficeLoadAnomaly.
239        Its default is 0., but it may be computed more cleverly from (unknown)
240        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
241        done offline. A good approximation of the pressure load anomaly is
242        necessary to avoid large initial adjustment processes underneath
243        deep-reaching shelfice.
244      - small fix in ISOMIP shelfice_thermodynamics
245      - add more sophisticated thermodynamics of Hellmer (1989), this is
246        now the default
247      - give a few constants more intuitive names
248    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
249      if bulk formulae are used in long integration (especially EmPmR). Turn
250      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
251      if balancePrintMean, the imbalance that is substracted is printed to
252      STDOUT.
253    o fix bug (typo) in obcs_apply_eta.F
254    o add a new package shelfice which enables us to model the circulation
255      underneath shelf-ice with draughts of hundreds of meters.
256     - works
257     - to do: + include improved thermodynamics
258              + check whether kSurfC (from model/inc/SURFACE.h) can be used
259                instead of new field kTopC
260              + can we use topoFile, Ro_surf and existing code in ini_depth.F
261                instead of new field R_shelfIce and new code in ini_depth.F
262                and ini_mask_etc.F?
263              + adjust vertical mixing schemes?
264    o seaice pkg:
265     - add a cpp-flag to include a simple formula for a salinity dependent
266       freezing point of sea water at the surface
267     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
268       meridional stresses are now different (and hopefully correct)
269    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
270       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
271       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
272    o pkg/diagnostics: add options and parameters for regional-statistics
273       diagnostics ; define regions by reading a region-mask from a file
274       (might add other options later)
275    o pkg/bulk_force:
276     - add option and parameters to use AIM surface-flux formulae.
277     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
278       others forcing fields (defined in PARM05, parameter file "data") are loaded
279       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
280     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
281     - use the right EXCH call for uwind,vwind (to work on CS-grid).
282     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
283       and parameters (note: calcWindStress replaces .NOT.readwindstress).
284     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
285    
286    checkpoint58
287    o add "--embed-source" option to genmake2 which, when the supporting
288      tools can be compiled (as determined by genmake2) will turn on the
289      embed_files package which then embeds the entire MITgcm source code
290      (*.[fFhc] + Makefile) used for the build within the executable
291      - requested by CNH but off by default
292      - adds a paltry <9MB to the mitgcmuv executable in most cases
293      - only writes the output when useEMBEDSRC in eedata is true
294    o clean up 3-dim. relaxation codes:
295      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
296      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
297      * Thanks to Tom Haine for testing!
298    
299    checkpoint57z_post
300    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
301      affects output (@ truncation level) of exp. plume_on_slope ; updated.
302    o fix the pickup behavior for obcs in combination with ptracers
303    o fix a bug in ptracers_external_fields_load
304    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
305      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
306    o transfered surface NH pressure to eta field (if exactConserv).
307    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
308         and update lab_sea output.txt file.
309    o completing 3-dim. relaxation code: additional term
310         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
311      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
312      * At compile time, in "EXF_OPTIONS.h" set
313          #define  ALLOW_CLIMTEMP_RELAXATION
314          #define  ALLOW_CLIMSALT_RELAXATION
315      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
316          tauThetaClimRelax3Dim = 15552000.0,
317          tauSaltClimRelax3Dim  = 15552000.0,
318      * 3 cases:
319          1) Use a constant-in-time 3-dim. field
320          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
321          3) Real-time relax. to time-evolving prescribed field
322    o Adding Laplacian-type smoothness constraint on
323      initial and boundary (forcing) controls (ic, bc)
324      * enable at compile-time via
325        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
326      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
327      * Absolute scale somewhat unclear so far
328      * no area weighting was included since no other cost term does so far
329    
330    checkpoint57y_post
331    First step for a NLFS adjoint
332    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
333    o new init. routines for calc_r_star, calc_surf_dr
334    o still need to deal with ini_masks_etc
335    o testreport seemed happy
336    checkpoint57y_pre
337    
338    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
339    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
340    o add new offset feature to offline pkg (plus minor cleanup)
341    o cfc fixes for final year of integration
342    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
343      be in GCHEM_OPTIONS).
344    
345    checkpoint57x_post
346    o fix testreport Pb in multiple test experiment.
347    o cleanup our namelist syntax in verification:
348      - make it more F95 standards compliant (some work still needed)
349      - allows the vast majority of our tests to work with gfortran
350    o Non-Hydrostatic:
351     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
352     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
353    o Allow to apply AB on T,S rather than on AB(gT,gS):
354     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
355     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
356       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
357     - need a "clever" read_pickup to restart from the other AB formulation
358    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
359    o remove some unused variables (reduces number of compiler warnings)
360    o adjoint
361      * Disable useVariableViscosity for adjoint for time being
362        (there are a number of extensive recomputations)
363      * Initialize certain variables needed for adjoint
364    
365    checkpoint57w_post
366    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
367                 fix the singleCpuIO RS version of MDSWRITEFIELD
368       and add a WARNING if using globalFiles=T with multi-processors.
369    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
370      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
371    o tracer advection scheme:
372      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
373       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
374       was not very convenient).
375      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
376       (further tests needed for the implicit DST & Flux-Limiter schemes).
377    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
378      and sRef for convenience, handy, when you want to initialize
379      ptracers in a large domain with a constant non-zero value. Also,
380      untangle ptracers_init.F a little.
381    
382    checkpoint57v_post
383    o change dome exp. to use variable viscosity in side-drag terms.
384    o remove all the files from the cfc_offline test since they are now
385      incorporated into tutorial_cfc_offline which has been producing
386      identical results for a few days of testing
387    o add new parameter: sideDragFactor to enable half-slip-side BC
388      and change side-drag S/R to use viscosity from mom_calc_visc
389      (can switch back by setting sideDragFactor=0.); affects results at
390      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
391       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
392    o vorticity & strain are now computed without masking, to account for
393      no-slip-side BC in variable viscosity calculation ; mask is applied
394      anyway later on, before computing advection/coriolis terms.
395    o modify exp4 to test new obcs support for reading from external files
396      and for passive tracers
397    o fix behavior of ptracers_monitor when monitor output is written to a
398      netcdf-file; still not independent of monitor.F (writes in the same
399      file).
400    o change default value of tRef (put a uniform, meaningful value for ocean
401      & atmos) and initialize sRef (was missing, as Martin mentioned).
402    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
403      to be proportional to enstrophy dissipation length.  Thus,
404       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
405      This is now consistent with Smagorinsky and with the manual.
406    
407    checkpoint57u_post
408    o OBCS and PTRACERS: add open boundary support for passive tracers
409      - either use homogenous (pseudo) v.Neumann conditions or prescribe
410        OB-values from file; this is not different from the way theta and salinity
411        are treated
412      - however, Orlanski-radiation conditions are not supported, and the model
413        will stop if you use pTracers and Orlanski at the same time.
414      - beefed up the rountine obcs_external_fields_load: now only those open
415        boundary values are overwritten with values from files for which there
416        are really files, otherwise the OB-fields remain untouched. This makes
417        it possible to use different OBs at different ends of the domain (as
418        with EXF)
419    o reduce number of exch calls in shap_filt (s2).
420    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
421      truncation level) 4/5 MLAdjust test results (11&12 digits match).
422    
423    checkpoint57t_post
424    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
425    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
426      same truncation, independent of the face number: affects affects several
427      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
428    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
429      note that biharmonic viscosity + no-slip was not tested in any experiment.
430    o fix bug in non-linear free-surf side-drag ; generate new output for
431      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
432    o make mnc honor the writeBinaryPrec flag for most kinds of output
433    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
434    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
435      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
436    o add brackets in multi-terms sum to get same truncation, independent of
437      the face number (manage to get exactly same value of gU,gV at the cs-edge)
438      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
439    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
440      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
441      a maximum grid-scale Reynolds number.  Also, changes all length calculations
442      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
443      Suggested values of viscosity parameters found in mom_calc_visc.
444      Many new viscosity diagnostics available.
445    
446    checkpoint57s_post
447    o Add clearing-house for viscosity calculations, mom_calc_visc and
448      correct numerous bugs in LeithD and Smagorinsky discretizations.  
449      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
450      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
451      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
452      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
453      The Strain-Tension form is now called with useStrainTensonVisc=.true.
454      ViscAhStrain and viscAhTension are now retired.
455    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
456    o In response to JMC's bug report, genmake2 now ignores any soft-links
457      that it finds in the *current* directory when searching for files.
458      Soft-links found in any other source directories will still work as
459      they did before.
460    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
461      a C routine to unlimit the stack size
462    o mnc-ify pkg/aim snapshot vars
463    o mnc-ify pkg/land as requested by Daniel
464    o various changes to mnc including:
465      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
466      - output can now be grouped so that all files within a group
467          change the ITER portion of their names in lock-step together
468      - can now read ("global") PER-FACE (in addition to PER-TILE) files
469          and works with both EXCH1 and EXCH2 (but needs more testing)
470      - writing works for all verification test cases w/ g77 on Linux
471    
472    checkpoint57r_post
473    o make MNC variable initialization happen earlier
474    o add diagnostics for (almost) each term of the momentum Eq.
475    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
476    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
477    o remove MINIMAL_TAVE_OUTPUT option ;
478      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
479    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
480      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
481    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
482    o add time-dependent SST, SSS control
483    o cost terms in ecco/ modularized (new cost_generic.F)
484    o cost_averages routines are modularized (new cost_averagesgeneric.F)
485    o new infrastructure for seaice model vs. obs misfits in seaice/
486      * driver from the_main_loop.F is seaice_cost_driver.F
487      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
488      * gradient check in Exp. 6a of natl_box_adjoint/
489    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
490      (see README file)
491    
492    checkpoint57q_post
493    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
494    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
495      - bug was reported by Jean-Michel and Ian Fenty
496    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
497      update exp. cpl_aim+ocn output.
498    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
499      Needed for high-res. runs with large global files
500      to be able to limit tapelev size
501    o Changed some tests for adjoint:
502      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
503      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
504      * global_ocean.90x40x15/ back to default 3-level checkpointing
505    o Modifications to enable scripted COMMON to MODULE conversion
506      * verification/OpenAD/code/ has necessary scripts and description;
507      * converts, compiles and runs successfully;
508    
509    checkpoint57p_post
510    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
511    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
512      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
513    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
514    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
515      (was already the case for dissipation with mom_vecinv,
516       and also the case for grad.PhiHyd when staggered-timeStep)
517      This will allow to put dissipation out-off the AB time-stepping.
518     Unfortunately, affects truncation error. Update output of exp. that "fails"
519      (cg2d matching number) and leave the others for later: front_relax(10),
520      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
521      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
522    
523    checkpoint57o_post
524    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
525      (2) its ready to be documented during the 20050801 DocFest
526    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
527      for ideal_2D_oce and lab_sea on linux_ia32_g77
528    o set to #undef CTRL_SET_OLD_MAXCVARS_30
529      in global1x1_tot/code_seaice_adj to access indices 32, 33
530      (worth another tag)
531    
532    checkpoint57n_post
533    o adding precip control xx_precip 32
534    o adding swflux control xx_swflux 33
535    o Replacing 10 forcing penalty cost routines by 1 generic.
536    o Implementing partitioning in time-mean and variable adjustment
537      for atmos. state.
538    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
539    o in natl_box_adjoint:
540      * updated exp 1 to 10
541        (but does not have time-mean vs. variable split results yet)
542    o updated global1x1/*_seaice_adj/
543      to incorporate latest changes
544    o enable useSingleCpuIO for mdsio vector routines
545      (applies in particular to tapelev I/O)
546    o removed inefficient K-loop in all active_file*control*.F
547    
548    checkpoint57m_post
549    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
550      and advect_cs (use EXCH-2 and standard cs-32 grid files).
551    o pkg/exch2: filling of face-corner halo regions is optional
552      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
553    
554    checkpoint57l_post
555     tag before updating tutorials (pre-release-2)
556    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
557       for output and interpolation of input fields onto model grid)
558    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
559       Affects results of exp. rotating_tank ; update output.txt.
560    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
561          and taking the square quantity and/or using a fraction-weight field.
562    o fix aim_diagnostics_init.F mate numbers.
563    o add mnc output capability to diagnostics/diagstat and update
564      our cvsignore files for the ACSII output generated
565    
566    checkpoint57k_post
567    o lab_sea now uses diagnostics package and provides a suite of
568      new EXF diagnostics output.
569    
570    checkpoint57j_post
571    o exf
572      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
573        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
574        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
575      * extended diagnostics output
576        - now includes all EXF variables
577        - hs, hl moved to common block
578        - separate S/R for diagnostics, called after ctrl vector is added
579        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
580        - EXFqnet contains true Qnet (i.e. includes qsw)
581      * updated verif. lab_sea, global_with_exf
582      * Rearranging hflux (exf_mapfields -> exf_getforcing)
583        to ensure that diagnostics sees a true EXFqnet
584    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
585    o diagnostics pkg: change pointers so that 1 diagnostic can be used
586      several times with different frequencies.
587    o mnc-ify the thsice package as requested by Daniel Enderton
588      - the monitor--MNC output needs work
589      - many attributes need to be added (most are currently blank)
590    o mnc-ify theaim_v23 package as requested by Daniel Enderton
591      - many attributes need to be added (most are currently blank)
592    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
593    o add Sadourny like discretization to the 4th.O vorticity advection scheme
594    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
595      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
596         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
597    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
598     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
599    
600    checkpoint57i_post
601    o Diagnostics package was changed: diagnostic allocation is now deactivated
602      by setting an empty file name in the namelist (used to be by setting 0 frequency)
603    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
604      add 1rst Order upwind vertical Shear.
605    o add a quick fix for A/B checkpointing in OFFLINE mode
606    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
607      end-run around the C/Fortran linking horror in eesup/src/timers.F
608    o added pkg/runclock: allows user to terminate run based on wall clock
609    o added non-hydrostatic scaling parameter: nh_am2
610    o pkg/my82: futile attempt to make results compiler-independent by adding
611      some "_d 0", etc. no effect.
612    o for mnc output, fill the 'T' coordinate var with myTime and create a
613      separate 'iter' variable for iteration count
614    o pkg/diagnostics:
615      add new capability: output of Global/Regional & per-level statistics ;
616      tested against monitor output (including land & thSIce) on various exp.
617    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
618    
619    checkpoint57h_done
620      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
621      data.diagnostics, data.gchem, data.ptracers) is done.
622    
623    o pkg/diagnostics: prepare for Global/Regional statistics.
624      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
625    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
626      and rename it: DIFFERENT_MULTIPLE
627    
628    checkpoint57h_post
629    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
630    o pkg/diagnostics: change output frequency, now in seconds (instead
631      of Nb of iterations). This requires to change data.diagnostics.
632    checkpoint57h_pre
633    
634    o in mnc, let the user create the output dir if both mnc_outdir_date
635      and mnc_outdir_num are false
636    o add fflags() to pkg/diagnostics which allows one to specify, on a
637      per-file basis, the file precision [default behavior is unchanged]
638    o added diagnostics to pkg/kpp, including computation of mixed layer
639      depth based on a temperature/density criterion
640    o updated verification/natl_box to test the new pkg/kpp diagnostics
641    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
642    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
643    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
644      not mnc -- this mistake was found by JMC and is now corrected
645    
646    checkpoint57g_post
647    o add Adams-Bashforth 3rd Order time stepping:
648      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
649      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
650    checkpoint57g_pre
651    
652    o make lambda[Theta,Salt]ClimRelax spatially varying
653      (default remains spatially uniform constant based on tau)
654    o added new control variables
655      * init. uVel, vVel, etanN
656      * lambda[Theta,Salt]ClimRelax
657    o separate masks used for ctrl_pack/unpack 'from write_grid' output
658      (suggested by G. Forget)
659    
660    checkpoint57f_post
661    o add parameter "baseTime" = model base time = time at iteration zero
662      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
663      account for baseTime shift
664    o move Coriolis arrays from PARAMS.h to GRID.h
665    checkpoint57f_pre
666    
667    o mnc-ifying the seaice package
668    o introduced an alternative length scale calculation for use in the limiting
669      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
670    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
671    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
672      as well as grad(vort3).  Made it compatible with both approximate form
673      for the cubed sphere and full form of these gradients.  Added flag
674      useFullLeith to select between approximate and full form.  
675    o add "d0" in getcon.F to reduce differences between compilers/platforms
676      update output.txt of exp. fizhi-gridalt-hs
677    o change port_rand funtion to allow to set the seed.
678    o fix obscure MNC bug involving conversion between reals and integers
679      - it caused no problems with certain (eg. gcc, ifc) compilers but the
680        new version is now more standards-compliant
681    o adjoint-related modifications
682      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
683      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
684      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
685    
686    checkpoint57e_post
687    o Adding eddy stress controls a la Ferreira et al.
688    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
689    
690    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
691      update output.txt of exp. fizhi-gridalt-hs
692    o add more "Z" dimensions and associated coordinate vars to MNC
693    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
694    o parameter calendarDumps: when set, approximate months (30-31 days) and years
695      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
696      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
697      months and years.  Requires pkg/cal.
698    o diagnostics: add pickup functionality
699      - off by default for backwards compatibility
700      - current version only uses MDSIO -- MNC will be added
701    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
702    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
703    
704    checkpoint57d_post
705    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
706    o modify verification/ideal_2D_oce so that it tests the creation of mnc
707      output from the diagnostics package
708    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
709    o make genmake2 more portable by using ".$FS" instead of ".f" for more
710      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
711    o add coordinate variables to the MNC output from the diagnostics package
712    o change MNC-flags default value: true when useMNC=TRUE
713    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
714      the ability (off by default) to read the grid information using MNC
715    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
716    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
717    o do snap-shot diagnostics at the middle of the time-interval (instead of
718      at the end).
719    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
720      new test for AIM with thSIce + slab-ocean
721    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
722    o move state variable diagnostics to the beginning of the time step ;
723      (note: still needs some work specially for snap-shot diagnostics)
724      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
725    
726    checkpoint57c_post
727    o Change testing option (-ieee) to get closer agreement between g77 & ifort
728    o generate new output.txt files on faulks with g77 & the new -ieee option
729    checkpoint57c_pre
730    
731    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
732      update output.txt of exp. global_ocean.90x40x15
733    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
734      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
735    o add saltFlux(+File) forcing capability with periodicExternalForcing
736    o allow to use pkg diagnostics for GM-Redi & ThSIce output
737    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
738    o improvements for the MNC output from DIAGNOSTICS:
739      - correct handling of the unlimitied dimension
740      - all dims now have associated coordinate variables
741      - variables located at U, V, and Corner ("Z") points are now written
742        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
743        *all* data points are output
744    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
745    o added pkg/seaice/seaice_monitor.F
746    o mdsio_readfield.F can now read files visible only to master MPI process.
747    o pkg/seaice: some test code for ice-modified ocean stress
748    o exf_getffields interpolation defaults to bilinear for all scalar forcing
749      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
750      spurious negative numbers for precipitation and humidity.  Will cause
751      some small numerical differences for integrations using pkg/exf/exf_interp.F.
752    o pkg/ctrl/
753      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
754        May be enabled via doPackDiag
755      *  introduce z-scaling of
756         + gradient (doZscalePack) and
757         + control (doZscaleUnpack)
758    o pkg/mdsio/
759      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
760      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
761    
762    checkpoint57b_post
763    o simplify options in diagnostics_fill arguments (remove weird combinations)
764    o fix MNC coordinate variables so that they now contain per-face index
765      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
766      general, EXCH2 grids are only aligned to a "local" coordinate system
767    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
768    o Implement instantaneous output within pkg diagnostics:
769      setting a negative frequency in data.diagnostics produces
770     "snap-shot" output (as opposed to time-average if freq > 0)
771    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
772      NOTE: change ptracer diagnostics name: use 2 characters to work with
773            more than 9 tracers. Add also diagnostics of advect & diffus flux.
774    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
775      becomes the coordinate variable for the 'T' dimension
776    o add CF-style coordinate variables to MNC
777      - just a first cut:  numbers are meaningless on the cubesphere and
778        missing along the T axis but otherwise it works!
779    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
780    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
781    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
782      this is based directly on what the model compute, so that the content of
783      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
784    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
785    o clean up build options files for SunOS, in particular
786      - remove -traditional from xmakedepend
787      - change -xarch=v9 to -xarch=native for f77
788      - restore use of make (not gmake)
789      - add CC=gcc if using g77
790    o changes per discussion of AM, JMC, & EH3 today:
791      - move redundant "grid" variables out of "state" -- in preparation of
792        creating proper CF-style coordinate variables and in recognition
793        that any/all grid variables can be easily copied (eg. w/NCO) from
794        the grid files into any of the other NetCDF files
795      - *always* output grid variables with MDSIO (this will eventually be
796        changed)
797      - output MNC grid file if useMNC is true
798    o every instance of _END_MASTER() has been found and replaced with
799      _END_MASTER( myThid ) in order to satisfy certain picky Sun
800      preprocessors
801    o re-arrange diagnostics pkg initialisation:
802     - allow each package to extend the available diagnostics list
803     - add some checking and fix small problems (multi-threaded, ...)
804     - new S/R diagnostics_fill (replace fill_diagnostics):
805       look through the short list of active diag. (instead of the long list)
806       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
807    
808    checkpoint57a_post
809    o this set of changes restores TAMC compatibility
810      tested for global_ocean.90x40x15 adjoint on trough
811      (what a pain)
812    
813    checkpoint57a_pre
814    o some modifs in tools/build_options for sunos
815    o call ctrl_pack for ctrl at end for optimcycle=0
816    
817    checkpoint57
818    o add horizontal bi-harmonic viscosity for vertical velocity
819      - new parameter viscA4W (defaults to viscA4)
820      - affects only non-hydrostatic code
821      - to be done: no-slip lateral boundary conditions
822    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
823    o implement Implicit Vertical advection for pTracers
824    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
825      (implemented also for implicit vertical diffusion & advection)
826    o OBCS: extend application of tracer open boundary conditions
827      to a strip beyond the boundary of width Olx/Oly
828    o add call monitor to TAF set of required calls (flow directives)
829      and include in natl_box_adjoint
830    o untangle a few ifdefs related to cost, ctrl, autodiff
831      untangel a few ALLOW_ECCO_OPTIMIZATION
832    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
833      (theta2, salt2 in ecco_cost_weights)
834    
835    checkpoint56c_post
836    o OBCS as control variables
837      - update ctrl_ad_diff.list, obcs_ad_diff.list
838      - remove balance of obcs controls from default
839      - fix index bug nobcs in ctrl_init
840      - fix dummy fields filen in ctrl_pack
841      - add dummy weights for obcs
842    o lsopt: comment out fort.94 output
843    o optim:
844      - remove unnecessary header files
845      - adjusted namelists
846      - add xerbla.F to Makefile
847    o exf:
848      - multiple modifications of exf_check_range
849      - unit change in exf_init_runoff from [m/year] to [m/s]
850    o mdsio:
851      - i/o-vector change debugLevel from debLevA to debLevB
852    
853    checkpoint56b_post
854    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
855      is called from DO_THE_MODEL_IO
856      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
857      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
858      - clean up PTRACERS_WRITE_TIMEAVE a little
859    o add another verification experiment that tests both the cfc-pkg and
860      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
861      reactive tendencies treated inline with regular timestepping
862    o testreport previously did a lousy job of comparing small numbers, so
863      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
864      implemented in the little c-progam tmp_cmpnum.c which is embedded in
865      testreport.
866    o ptracers_monitor: bug fix for MPI
867    
868    checkpoint56a_post
869    o GCHEM: finish reorganizating the package
870      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
871        (introduces another 3D-array for each passive tracer, but only if
872        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
873        gchemTendency is not needed because the timestep is done separately)
874      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
875      - GCHEM is now---more or less cleanly---separate from PTRACERS
876      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
877        so clear to me how that should be done in a general way.
878    o CFC: improve formatting of output in CFC_ATMOS
879    o PTRACERS:
880      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
881        that ALL experiments with ptracers enable can be checked. This makes
882        GCHEM_MONITOR obsolete.
883      - include a runtime parameter PTRACERS_monitorFreq that defaults to
884        monitorFreq
885      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
886    o add PTRACERS (PTR0[1-5]) to testreport output
887    o exf_check_range:
888      * default changed to .TRUE.
889      * will check values for niter0 if debLevA, every timestep if debLevB
890      * STOP in exf_check_range if 'out of range'
891      * range chosen generous to allow for potential extema
892      TBD: a version with stricter range
893           permitted range would be runtime parameters
894    o GMredi:
895      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
896      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
897      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
898    o GCHEM:
899      - move call to GCHEM_FORCING_SEP, so that it is now called before
900        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
901      - introduced a useGCHEM runtime flag and applied it everywhere.
902      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
903        this flag is now only visible within GCHEM-pkg routines.
904      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
905        be replaced by a 3D array that is computed before thermodynamics; for
906        this, the tracer ID iTracer had to be included into the parameter list
907        of ptracers_forcing
908      - set up forward_step to call gchem_forcing, that will replace
909        gchem_forcing_int in ptracers_forcing
910      - cleaning up
911    o small cleaning of exch2: remove files that are also in eesupp/src
912    
913    checkpoint56
914    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
915    o mnc: cleanup "full" files--fixes out-of-memory problem
916    o ECCO-GODAE
917      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
918      * fully merged and updated from SIO code
919        windstress sign change affects
920        - exf_inscal_[u/v]stress
921        - sign of xx_tau[u/v] adjustments
922        - signs in cost_scat
923      * ctrl_get_gen: avoid update of tau[u/v] for first few days
924      * natl_box_adjoint updated and compressed
925      * 2-level checkpoint switch added
926        (tested in EXP. 1 of natl_box_adjoint)
927      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
928    o SVD
929      * first complete, non-hacked version for SVD calculations
930      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
931        performed via direct access files admtlm_vector.it????
932        (via ctrl_[un]pack)
933      * optimcycle is used for ARPACK iteration counter
934        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
935      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
936        and add linear transforms where necessary
937      * controls are initial/final SST, SSS (can be extended; need to check
938        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
939    o mdsio: filename info to both stderr, stdout
940    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
941      from sign change
942    
943    checkpoint55j_post
944    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
945      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
946    o add consistent build directories and .cvsignore files to verification
947    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
948    o make all subroutines 30 or less characters in length for certain older
949      compilers to work (a thorough search only turns up two routines in
950      pkg/ptracers)
951    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
952      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
953    
954    checkpoint55i_post
955    o change arrays for total vertical diffusivity (2.D if explicit,
956      3.D if implicit) ; each ptracer uses its own background value.
957    o added mnc/NetCDF output capability to ocn_compon_interf
958      - added bits to verification/cpl_aim+ocn so that it can run on
959        ITRDA and other clusters without the mpirun "-wd" option
960    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
961      configuration
962    o give MNC the ability to create additional files rather than
963      exceeding a specified file size limit "MNC_MAX_FILESIZE"
964      - the default is just less than 2GB which is a practical limit
965        on many systems
966    o Compute the non-local term using either KPP vertical diffusivity (=default)
967       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
968    
969    checkpoint55h_post
970    o add verification test "vermix"
971    o remove all the *_ioinc flags and replace with the single global
972      outputTypesInclusive flag
973    o allow to set a vertical profile of vertical diffusivity for T & S
974    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
975    o useMNC moved from data.mnc to data.pkg
976    
977    checkpoint55g_post
978    o Renaming carbon AD experiments to comply with testreport conventions
979    o Updating adjoint of Held-Suarez hs94.1x64x5
980    o Fixing directives for non-ECCO forward_step, after ECCO directives
981      have been fixed to avoid recomp. of do_oceanic_phys
982      Works well for global_ocean.90x40x15,
983      but recomp. issue remains for carbon
984    o Updating adjoint output for natl_box_adjoint after
985      pkg/ecco has been modified (see taga c55d_post)
986    
987    checkpoint55f_post
988    o rename to timeave_init_fixed
989    
990    checkpoint55e_post
991    o some delicate re-shuffle of store directives to avoid one
992      extra call of do_oceanic_physics
993      affects ecco_the_main_loop.F, do_oceanic_physics.F
994      checkpoint_lev1_directives.h
995    o NB: this may break global_ocean adjoint temporarily,
996      but it is clear how to fix it. Will do later, need this now.
997    
998    checkpoint55d_post
999    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1000    o ecco_cost_weights is modified to 1x1 runs
1001    o modifs to allow observations to be read in as
1002      single file or yearly files
1003    o enable to read exf forcing fields as either
1004      single file or yearly files (flag useExfYearlyFields)
1005    checkpoint55d_pre
1006    
1007    o switch between 2-level and 3-level checkpointing
1008    o add ability of MNC to write local and "partial" (eg. 2D slices where
1009      the full 3D field is never actually stored) arrays to NetCDF files
1010      with the correct (that is, the complete multi-dimensional) set of
1011      array indicies
1012      - used in mom_vecinv() to write the diagFreq output
1013      - tested (demonstrated) in verification/aim.5l_cs
1014    o further mnc-ification
1015      - add verification/lab_sea to the list with mnc setups
1016      - fix undefined mnc v-names in cd_code
1017      - add kpp to mnc output (both snapshot and timeave)
1018    o non-hydrostatic code
1019      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1020        in calc_gw.F
1021      - defaults to viscAh
1022      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1023        friction or Leith) in non-hydrostatic mode, as long as there is
1024        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1025    o pkg/cost
1026      extend simple cost functions to treat time mean quantities
1027      (T,U,V) via cost_accumulate_state from cost_tile
1028    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1029        be 2 times larger than the minimum size the advection scheme requires.
1030        now get a perfect conservation of salt in advect_cs test-exp (updated)
1031    o GGL90 (Gaspar's TKE mixed layer)
1032      - add horizontal diffusion of TKE, requires exchanges in
1033        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1034        default. In OPA there is no horizontal diffusion of TKE but the
1035        mixing coefficients are computed from a horizontal average of TKE of
1036        6 points or so. I think that diffusion has a little more physical
1037        justification.
1038      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1039        was in vain)
1040      - mask tke-variable in ggl90_init
1041    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1042    o fix biharmonic diffusion on CS-grid.
1043    o more obcs stuff
1044      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1045        for reading boundary values. This routine is called from
1046        obcs_prescribe_read
1047      - updated obcs_check
1048      - changed sponge layer relaxation parameter units for days to seconds
1049      - turned off sponge layer by default
1050      - changed argument list of OBCS_CALC to myTime+deltaTclock
1051      - fixed about 35 bugs in obcs_external_fields_load
1052    
1053    checkpoint55c_post
1054    o obcs stuff
1055      - new runtime flags useOBCSprescribe, useOBCSbalance
1056      - re-arranged obcs_calc
1057      - moved exf_getobcs to obcs_prescibe_read
1058        obcs_prescibe_read is called after ORLANSKI stuff
1059        and independent of it (executable can contain all).
1060      - updated obcs_check
1061      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1062        These may be necessary only if tangential velocities are
1063        prescribed at OB, not sure, needs testing.
1064    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1065      which simplifies the calls and passes the ifc check-bounds test
1066    
1067    checkpoint55b_post
1068    o add a 2D scalar, Z location, exchange_2 routine.
1069    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1070      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1071      affects advect_cs results (for the wrong reason): update output.txt
1072    o use a more standard discretization for biharmonic viscosity ;
1073     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1074      affects results of dome set-up: update output.txt
1075    o fix gad_advection.F (CubedSphere part), back to version 1.23
1076    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1077    
1078    checkpoint55a_post
1079    o merged code to
1080      * prescribe/read time-dependent open boundaries
1081        (works in conjunction with exf, cal)
1082      * sponge layer code for open boundaries
1083      * each boundary N/S/E/W now has its own CPP option
1084        (healthy for the adjoint)
1085    
1086    checkpoint55
1087    o up-to-date adjoint of previous breaks
1088      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1089      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1090      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1091      - carbon: * remove tr1-related adjoint verification
1092                * add ptracer as control variable
1093    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1094      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1095    
1096    checkpoint54f_post
1097    o in verification/carbin/ remove experiment related to
1098      ALLOW_PASSIVE_TRACER (array tr1 etc)
1099      code_ad/ input_ad/ results_ad
1100    
1101    o add two new packages
1102      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1103        + subject to optimization (memory)
1104      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1105        + subject to reordering (many GOTOs in the original code)
1106        + so far opps is called for every (i,j) point, and then operates in
1107          the vertical; one may want to reorder the scheme in order operate in
1108          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1109          fields)
1110    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1111      - all verification tests compile and run with linux_ia32_g77
1112      - defaults are compatible with current input files--nothing
1113        should change if you were not previously using MNC
1114      - MNC output has been added in numerous places (eg. timeave)
1115        but there are still a few writes not yet do-able with MNC
1116        (this is in progress)
1117      - flags now allow for either/or/both use of MDSIO and MNC and
1118        documentation will soon follow
1119      - numerous small formatting cleanups for ProTeX
1120    o add version info (via BUILD_INFO.h) to MNC and stdout
1121    
1122    checkpoint54e_post
1123    o add two new packages
1124      - pp81 (Packanowski and Philander, 1981), Richardson number and
1125        stratification dependent mixing
1126      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1127      - these scheme operate in a similar manner as KPP (without ghat, of
1128        course), however there is only one diffusivity that is used for both
1129        temperature and salinity (and passive tracers)ç
1130    o add offline package
1131    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1132      provided by Stephanie Dutkiewicz
1133    o genmake2: add ability to search for C compilers and cleanup test output
1134      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1135    
1136    checkpoint54d_post
1137    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1138    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1139      leading to additional shift by 5 days each year of integration
1140       (i.e. leading to considerable offset over the years)
1141    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1142    o start with no AB and no initial filtering (staggerTimeStep):
1143      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1144    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1145      (external loading & cpl import/export stay in forward_step.F)
1146    o update coupling interface to work with new staggerTimeStep
1147    o change MDSIO ptracers_pickup.
1148    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1149    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1150    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1151    
1152    checkpoint54c_post
1153    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1154      this affects (truncation error) output.txt of test-exp:
1155       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1156    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1157    o change Qnet to always be the net heat flux, (+upward).
1158      affects (truncation error) output of natl_box exp.: updated
1159    o define the max number of passive tracers in PTRACERS_SIZE.h
1160    o start to test mnc routinely in exp0
1161    o add sea-ice loading (sIceLoad) as a new forcing field.
1162    
1163    checkpoint54b_post
1164    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1165       impressive on Altix and Opteron systems)
1166    o diagnostics can now write NetCDF files through the mnc package
1167    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1168    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1169    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1170      affects (truncation error) output of lab_sea & natl_box exp.: updated
1171    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1172    
1173    checkpoint54a_post
1174    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1175    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1176    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1177    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1178      + internal_wave (shift in writing cg2d_ini_res)
1179    checkpoint54a_pre
1180    
1181    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1182      - modified verification/lab_sea and natl_box_adjoint accordingly
1183    
1184    checkpoint54
1185    checkpoint53g_post
1186    o prepare splitting of thermodynamics: store convect.counter in common block
1187    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1188      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1189    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1190    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1191    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1192    o restore adjointability
1193    
1194    checkpoint53f_post
1195    o modifications that affect AIM experiment results (update output.txt):
1196      - no advection of S at top interface Nr (pkg/generic_advdiff)
1197      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1198    o AIM pkg:
1199      - include stability function into surf.Flux derivative relative to Tsurf
1200      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1201    
1202    checkpoint53e_post
1203    o merged cylindrical coord configuration
1204    o added rotating_tank experiment
1205    checkpoint53e_pre
1206    
1207    checkpoint53d_post
1208    o faulks upgraded: re-generate output.txt that have changed:
1209       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1210    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1211    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1212    o added Sadourny discretization of Coriolis
1213      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1214      - re-enabled use of omega3 (useAbsVorticity)
1215    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1216      vector-invariant equations
1217      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1218    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1219      hopefully without new bugs
1220      - still to do: biharmonic friction for non-hydrostatic w
1221    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1222    o regenerated output for global_ocean_ebm (using -ieee)
1223    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1224      of mom_common/
1225      - simple re-arrangement of instructions within computing loop
1226    checkpoint53d_pre
1227    
1228    checkpoint53c_post
1229    o new version of coupler for AIM+thSIce and Ocean models
1230     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1231     - land: change Evaporation of snow
1232     - aim with thSIce: fix bug in snow-precip.
1233    o changes to calc_gw.F
1234     - bug fix for w^2 term near the bottom boundary
1235     - (hopefully) improve the lateral slip boundary condtions for use with
1236        partial/looped cells
1237      - because the bug fix changes two verification experiments anyway (exp5
1238        and plume on slope), change the lateral boundary condition from half slip
1239        to the value of no_slip_sides
1240    o ebm package wasnt quite up to the parallel task. Fixed that.
1241    o Adjoint of EBM package + verification
1242      * TLM OK
1243      * ADM not sufficient accuracy yet (needs further testing)
1244    
1245    checkpoint53b_post
1246    o Commiting new energy balance model to repository
1247      * package is pkg/ebm
1248      * verif. is verification/global_ocean_ebm
1249      * references are in ebm_driver.F
1250    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1251    C        Global thermohaline circulation. Part I:
1252    C        Sensitivity to atmospheric moisture transport.
1253    C        J. Climate 12(1), 71-82
1254    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1255    C        Global thermohaline circulation. Part II:
1256    C        Sensitivity with interactive transport.
1257    C        J. Climate 12(1), 83-91
1258    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1259    C        Destabilization of the thermohaline circulation
1260    C        by atmospheric eddy transports.
1261    C        J. Climate 7(12), 1870-1882
1262    o Will need long integration testing.
1263    checkpoint53b_pre
1264    
1265    o created pkg/mom_common in preparation for variable viscosity code
1266    o renamed and split ini_mnc_io
1267    o pkg/land: only liquid water can diffuse or run-off
1268    o AIM using land: soil wetness availability account for snow
1269    o added printMapIncludesZeros to EEPARMS namelist
1270    
1271    checkpoint53a_post
1272    o restore TAMC compatiility for exf_constants.h
1273      (no usage of _d in .h)
1274    o Additional storing in KPP in an attempt to fix
1275      TAMC problem with adjoint of KPP code.
1276      (no success...)
1277      Identical code works fine with TAF.
1278    o Fixed verification/natl_box_adjoint experiments.
1279      Initial conditions for Experiments 4 and 5 are now
1280      set to "SEAICE_initialHEFF=0", which is more reasonable,
1281      and hence gives results closer to that of Experiment 2.
1282      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1283    
1284    checkpoint53
1285    o stable checkpoint with up to date adjoint
1286      TLM tests only run for 1st grdchk at the moment. Its unclear if
1287      this is a code problem or a problem with resetting code for g_
1288      variables that is being autogenerated wrong.
1289      Otherwise:
1290       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1291       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1292         are both still in chaos following their security messes.
1293    
1294    checkpoint52n_post
1295    o various build (mostly genmake2) changes including:
1296      - ability to build/run more easily within Cygwin and MacOS X
1297      - more complicated Makefiles with a stronger dependence on Gnu Make
1298    o pkg/seaice modifications
1299      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1300        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1301        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1302      - changed proxy for geostrophic velocity and updated
1303        verification/lab_sea/results/* accordingly
1304      - removed ADI dynamic solver from pkg/seaice
1305      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1306        they caused a segmentation fault under certain circumstances
1307      - removed unused field WATR
1308    o bug fix in exf-package:
1309      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1310         now reflect that.
1311    o small fixes in the cal-package:
1312      - set reference date to first of January for the 'model'-calendar
1313      - failing of cal_CheckDate in cal_FullDate now actually results in a
1314        warning
1315    o small modifications in exf-package to increase flexibility:
1316      - change climtempfreeze from a constant to a runtime parameter that
1317        is specified in data.exf_clim (default = -1.9)
1318      - introduce runtime parameter windstressmax (default = 2.0) that is
1319        specified in data.exf
1320    o fix in pkg/thsice:
1321      - update Evap (Tsf changes) to be consistent with Latent heat flux
1322      - maintain snow precipitation unchanged (even if Tsf >=0).
1323     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1324    
1325    checkpoint52m_post
1326    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1327      this does not change any of the results, because myIter=0 in swfrac always
1328      lead to jwtype=2 (the default anyway), but the call makes little sense
1329      as a default
1330    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1331    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1332      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1333    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1334    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1335    o extending useSingleCpuIO option to work with new exch2 I/O format
1336      - old-style, missing-tile I/O is still accessible by defining CPP
1337        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1338    o monitor package can write to NetCDF files and/or STDOUT
1339    o fix re-definition bug in MNC_GRID_INIT_ALL()
1340    o doc/api_reference added
1341      - a framework for building an API Reference Manual using all
1342        the "protex" comments embedded in the code
1343      - see pkg/generic_advdiff, pkg/mnc for examples
1344    o MNC:
1345      - make myThid the last argument for all subroutines
1346      - new default for the grid files: NO halos
1347      - add useMNC and other run-time flags
1348      - separate per-file-group handling of the unlimited dimension
1349      - early initialization of MNC w/ flags read at the eeboot stage
1350        and lookup tables set in initialize_fixed
1351      - write all MNC output to a freshly-created directory
1352    o thermodynamics sea-ice (thsice) is now tested with testreport.
1353    o test exp. advect_cs: use the standard cs32 grid ; update output.
1354    o Added functionality to grdchk:
1355      pick global i,j,k position (or nearest wet) where to perform check.
1356    
1357    checkpoint52l_post
1358    o new land formulation:
1359      a) use ground enthalpy as prognostic variable to ensure exact
1360         energy conservation.
1361      b) account for water temperature and for latent heat of freezing
1362         in all processes (rain, run-off, ground storage)
1363      c) compute surface and ground temperature implicitly.
1364    o aim_v23 modification for new land model:
1365      a) Treat separately land / ocean / sea-ice surface fluxes
1366         to allow implicit computation of land & sea-ice surface temp.
1367      b) add snow precipitation.
1368    checkpoint52l_pre
1369    
1370    o fix problem (when 1 tile is empty) in min/max monitor.
1371    o fix bug in timeAve (u,vZetatave in common block)
1372    o no restoring terms under ice for pkg/seaice
1373    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1374    o bug fix for pkg/seaice pickups
1375    o change MNC call locations and add coordinate attributes
1376    o mask vorticity at the corner ; affects global_ocean.cs output
1377    o fix ini_curvilinear_grid ; test CS experiments with mpi
1378    o aim.5l_cs: modify sea-ice fraction input file ; update output
1379    o exf: Adding simple range check routine for exf fields after read
1380    
1381    checkpoint52k_post
1382    o removed top-level directory "diags"
1383      - we migrated these functions to pkg/timeave a long time ago
1384    o fixed bug introduced in pkg/monitor
1385    o accuracy ctrlprec = 32 insuffient for gradient checks using
1386      averaged fields (I/O via cost_averages)
1387      -> use ctrl.h in active_file*.F to control I/O precision.
1388    o paramter list of CALL ADTHE_MAIN_LOOP
1389    o added initial do_the_model_io to ecco
1390    o set all ...Freq to zero after cost_final
1391      taveFreq, dumpFreq, pChkptFreq
1392    o MAIN and ECCO differentiability restored
1393    
1394    checkpoint52j_post
1395    o fix nchklev in tamc.h for global_ocean...
1396    o Bringing flow and store directives up-to-date
1397    o Really weird thing!
1398      call do_the_model_io from the_main_loop with parameters
1399      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1400      TAF places a faulty re-call of initialise_varia
1401      after cost_final call which should not be there!
1402    checkpoint52j_pre
1403    
1404    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1405      error messages
1406    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1407    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1408      debug output
1409    o modfied mdsio_writefield.F to handle non-global files under exch2
1410    o update AIM Cubed-Sphere exp (aim.5l_cs):
1411      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1412    o update AIM Equatorial Channel exp:
1413      use standard aim_v23 pkg and change the SST fields to be more realistic.
1414    o globalFile now works with exch2
1415    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1416      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1417    o limit timeave output for hi-res integrations
1418    
1419    checkpoint52i_post
1420    o removed CPP_EEOPTIONS.h from verification/*/code
1421    o updated the tiling for global_ocean_pressure
1422    checkpoint52i_pre
1423    
1424    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1425      the old pkg/aim).
1426    
1427    checkpoint52h_pre
1428    o shortened offending lines in exch2_send_rx?.template
1429    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1430    o genmake2: add build & execute test for NetCDF code
1431    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1432      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1433    o added useSingleCPUIO flag to monitor.F and mon_out.F
1434    o added temporary hack for sea-ice dynamics on the cube:
1435      metric terms are ignored and it is assumed that
1436      there is no sea-ice on cube faces 1, 2, 4, and 5.
1437    
1438    checkpoint52f_post
1439    o added exch2 cube routines to pkg/exch2
1440    o modified hs94.cs-32x32x5 to use it
1441    o added new grid files to hs94.cs-32x32x5
1442    checkpoint52f_pre
1443    
1444    checkpoint52e_post
1445    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1446      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1447    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1448      to work with implicit vertical advection and AB ;
1449    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1450    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1451     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1452    checkpoint52e_pre
1453    
1454    o fix bug in impldiff when Nr=1 or Nr=2.
1455    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1456    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1457    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1458      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1459    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1460    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1461    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1462    
1463    checkpoint52d_post
1464    o re-tiled many expts to allow comparison in multi-processor mode
1465      - updated output accordingly
1466      - changed hs94.128x64x5 to use intial T from file rather than use the
1467        random number generator
1468    o add infrastructure in model routines for fizhi and gridalt packages
1469    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1470    o changes to permit hi-res, cubed-sphere, configuration
1471      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1472      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1473      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1474        of surface winds for the cube
1475      (A verification experiment, based on global_ocean.cs32x15, but with
1476       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1477       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1478       complete with example surface forcing files and matlab scripts to look
1479       at the output and compare it with that of global_ocean.cs32x15.)
1480    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1481       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1482       to conform to the common rule.
1483    o check-in the first version of the coupler + interfaces for multi-components
1484       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1485       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1486       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1487       - ocean and atmos. share the same horizontal grid (no interpolation).
1488       - exchanges between component and coupler is done in forward_step
1489    o new verification experiment, cpl_aim+ocn:
1490       coupled ocean - AIM atmosphere on cs32 grid.
1491    
1492    checkpoint52d_pre
1493    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1494    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1495    
1496    checkpoint52c_post
1497    o Fixing OPTIONS files for use of exf:
1498      - ALLOW_ECCO not needed
1499      - ECCO_CPPOPTIONS.h should not be included from
1500        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1501        as has been the case in the past
1502      - All cal/exf related options are currently set in
1503        single header file. Should remain so until we
1504        agree on a consistent new policy.
1505    o Removed all CPP options for cal package.
1506      cal has no more CPP options.
1507    o modified STOREs in GAD_ADVECTION
1508    o corrected key comp. for passkey
1509    
1510    checkpoint52b_post
1511    o new version: "thsice" of thermodynamic sea-ice pkg:
1512     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1513     - modify fluxes but do not change theta directly;
1514     - light cleaning of bulk_force pkg (still needed with thsice).
1515     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1516       + output_thsice.txt to test thsice & bulk_force pkgs.
1517    o put back grid & coriolis monitor output.
1518    checkpoint52b_pre
1519    
1520    o call "do_the_model_io" at the beginning (=> dump initial state)
1521    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1522    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1523      (need info on NUMBER_OF_PTRACERS)
1524    o missing PTRACERS headers in some routines
1525    o default tamc.h in pkg/autodiff supposed to crash
1526      to ensure proper customization
1527    
1528    checkpoint52a_post
1529    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1530      - moved surfaceTendencyTice from pkg/seaice to main code
1531      - subroutine FREEZE_SURFACE now limits only surface temperature
1532        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1533        => new output.txt for global_ocean.cs32x15 & global_with_exf
1534      - keep the old version of FREEZE for backward compatibility;
1535        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1536      - corresponding modifs for TAF directives
1537    o added surface flux output variables to TIMEAVE_STATVARS
1538    o time-averaged output for pkg/ptracers
1539    o fix problem with ECCO-related divided adjoint
1540      snapshot file was missing some ad-variables,
1541      but no warning issued by TAF
1542    
1543    checkpoint52a_pre
1544    o some bug fixes for #undef REAL4_IS_SLOW
1545    
1546    checkpoint52 = ecco_c52_e35
1547    o after testing adjoints of checkpoint51u_post
1548    
1549    checkpoint51u_post
1550    o this is the post-merge tag of the ecco-branch
1551      (needs another clean checkout and re-testing)
1552    o various natl_box_adjoint configs and results
1553      but no input fields
1554    o obcs adjoint not yet merged!
1555    o adding ECCO global 1x1 and 2x2 degree configs
1556    o updated/extended some store directives for seaice
1557    o pkg/ecco now containes ecco-specific part of cost function
1558    o top level routines the_main_loop, forward_step
1559      supersede those in model/src/
1560      previous input data.cost now in data.ecco
1561      (new namelist ecco_cost_nml)
1562    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1563    
1564    checkpoint51t_post
1565    o this is the pre-merge tag of the ecco-branch
1566    
1567    checkpoint51s_post
1568    o cleanup: removed various obsolete #define-s
1569    o pkg/grdchk
1570      - renamed 'ph-grd 3' to 'grad-res'
1571      - merged from ecco-branch
1572        (remaining bug fixes for obcs gradient checks)
1573      - additional high-precision output for testreport
1574        (grep for 'precision_grdchk_result')
1575    
1576    checkpoint51r_post
1577    o cleaned up or removed CPP_OPTIONS.h files
1578    o updated results for some of the tests to reflect the new
1579      optfiles (-ieee: -O0 instead of -O3)
1580    
1581    checkpoint51q_post
1582    o cd_code:
1583      - moved cd_scheme.F -> cd_code_scheme.F
1584      - separate read_checkpoint from cd_code_ini_vars.F
1585      - separated cd_code part from write_checkpoint
1586      - updated AD_SOURCE, generated .flow
1587      - added CD_CODE_VARS.h to the_main_loop
1588      - Moving cd_code specific store dir.s to pkg/cd_code
1589    o ctrl package totally restructured
1590      - pack/unpack now optional and decoupled from
1591        xx_/adxx_ I/O
1592      - ctrl_pack/unpack cleaned
1593        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1594      - confined inclusion of AD_CONFIG.h to where necessary.
1595    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1596    
1597    checkpoint51p_post
1598    o create initial cd_code package
1599      - WARNING: the initialization of fields within packages
1600        is broken because INI_FIELDS (where READ_CHECKPOINT is
1601        called) is called *before* PACKAGES_INIT_VARIABLES.
1602        This seems to be backwards since
1603        1) its important to initially zero the entire field including
1604           the "halo" region
1605        2) zeroing needs to be done *before* reading pickup info
1606           and the pickup call might or might not happen in any
1607           particular run
1608      - this needs an overhaul for R2
1609    o cleanup verification/*/code/GMREDI_OPTIONS.h
1610    o cleanup testreport
1611    
1612    checkpoint51o_post
1613    o bringing AD-related verif's up to date with genmake2
1614      - carbon/
1615      - global_ocean.90x40x15/
1616      - hs.94.1x64x5/
1617      - (front_relax/ )
1618    o (more) consistent directory structure for AD-related verif.'s
1619    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1620    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1621    o bug fix in find_alpha.F for MDJWF:
1622      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1623        change rho -> rho-rhoConst
1624      - replace call find_rho to find_rhonum
1625    o initialisation of rFlx extended to full array (required by TAF)
1626      and shifted to thermodynamics
1627    o removed PTRACERS.h in ptracers routine
1628    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1629    o Correcting initialisations for fVerU, fVerV.
1630    o helping TAF to recognize dependency on kUp for
1631      fVerU, fVerV
1632    o Replacing delZ by delR in pkg/ctrl/
1633    checkpoint51o_pre
1634    
1635    o undid all of cp51 pending some cleanups and discussion
1636    o added the [#include "AD_CONFIG.h"] statement to all files that need
1637       it for adjoint/tl #defines
1638     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1639     o removed tools/genmake since it no longer works
1640    
1641    checkpoint51n_post
1642    o modifications to make FREEZE flux visible to pkg/kpp
1643      - moved surfaceTendencyTice from pkg/seaice to main code
1644      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1645      - subroutine FREEZE now limits only surface temperature
1646        (this means new output.txt for global_ocean.90x40x15,
1647         global_ocean.cs32x15, and global_with_exf)
1648    o added surface flux output variables to TIMEAVE_STATVARS
1649    
1650    checkpoint51n_pre
1651    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1652    o added [#include "AD_CONFIG.h"] to all files that use the following
1653      defines:
1654      - ALLOW_ADJOINT_RUN
1655      - ALLOW_TANGENTLINEAR_RUN
1656      - ALLOW_ECCO_OPTIMIZATION
1657    
1658    checkpoint51m_post
1659    o incorporating changes to get TAMC/TAF working in genmake2
1660      - added new TAMC/TAF targets to the Makefile
1661      - various cleanups related to package handling
1662      - these changes should have no impact on the forward model
1663    
1664    checkpoint51l_post
1665    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1666     - faster algorithm for cal_addtime.F
1667     - higher precision arithmetic, where needed
1668     - pkg/exf *startdate variables changed from calendar date to
1669       model integration time
1670    
1671    checkpoint51l_pre
1672    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1673    o enable to apply restoring on S & T only in a latitude band.
1674    o update output (external_forcing_surf modif. change truncation errors)
1675       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1676    
1677    checkpoint51k_post
1678    o change default to: useNHMTerms=.FALSE.
1679     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1680       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1681     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1682        exp1, ideal_2D_oce
1683     - change data file of oceanic exp (leave the results unchanged for now)
1684       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1685    o set gravitySign automatically according to the vertical coordinate used
1686      (and change sign: back to "logical" value: +1 when R increases downward)
1687    o added an include barrier to the default CPP_OPTIONS.h and
1688      removed the #include "PACKAGES_CONFIG.h" from it
1689    o fix a bug in mom_fluxform (from chk51j_post)
1690    
1691    checkpoint51j_post
1692    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1693    o adjusted some flow directives (dynamics, thermodynamics)
1694    o added cubed-sphere case to test cost function
1695    o heckpoint_lev?_directives.h now include
1696      pkg-specific directives, whenever those are enabled.
1697    o Moving pkg-specific flow directives to corresponding pkg
1698      Moving pkg-specific differentiation list to corresponding pkg
1699      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1700      ---> conventions are
1701           - pkg_ad.flow
1702           - pkg_ad_diff.list
1703           - pkg_ad_check_lev?_dir.h
1704    
1705    checkpoint51i_post
1706    o merge of the branch-genmake2
1707      - knowingly breaks the older genmake
1708      - automatic generation of all ALLOW_${PKG_NAME} defines
1709      - new testreport supersedes older testscript
1710    o large number of package inclusion and header cleanups
1711    checkpoint51i_pre
1712    
1713    o new output for adjoin of global ocean vector invariant
1714    o fix for checkpoint of thermodynamic seaice and bulk_force
1715    o Steph gchem various cleanups
1716    
1717    checkpoint 51h_pre
1718    o fixed some single quotes
1719    o modify gchem pkg to be more versatile
1720    o modifications to clean up dic pkg
1721    o add pkg/cfc
1722    
1723    checkpoint51g_post
1724    o provide links for ARPACK and ADM*TLM
1725    o start removing verification/vero/
1726    o update AD-related stuff
1727      (in particular some IF-statements in model/src/ routines)
1728    o adding to verification/global_ocean.90x40x15/ adjoint of
1729      vector invariant setup
1730    
1731    checkpoint51f_post
1732    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1733    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1734      of tracer Green's fucntions for ocean inversion project.
1735    
1736    checkpoint51f_pre
1737    o Added on-the-fly spatial interpolation capability
1738        "USE_EXF_INTERPOLATION" to pkg/exf.
1739      - This is a temporary Cartesian-grid hack until
1740        the super-duper ESMF coupler becomes available.
1741      - See verification/global_with_exf/README for usage example.
1742      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1743        flags and modified pkg/seaice accordingly.
1744    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1745        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1746        non-local transport term.
1747    
1748    checkpoint51e_post
1749    o pkg/mom_vecinv:
1750      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1751      - add time-ave diagnostic of vorticity advection.
1752    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1753    o atmospheric geopotential: - include water vapor effect;
1754                                - use p^kappa in p* scaling.
1755    o land pkg: read initial state from files.
1756    o AIM : add stratospheric drag in the upper level
1757    
1758    checkpoint51d_post
1759    o change function ILNBLNK (=> last non-blank char.) to return zero
1760      (instead of the string length) when the string. char is empty
1761    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1762    o modif's to restore TAMC compatibility
1763      - avoid "_d" constructs in PARAMETER declarations
1764      - avoid interrupting lines by comment lines
1765    o Use cluster local disks for purely local I/O
1766      vs. globally visible disks needed for ctrl stuff
1767      (merged from ecco-branch)
1768      - new active_file_loc... and mdsio_..._loc routines
1769      - affected packages: autodiff, ctrl, grdchk, mdsio
1770    
1771    checkpoint51c_post
1772    o introducing integer flag debugLevel
1773      - debLevZero: suppress all output
1774      - debLevA: standard
1775      - debLevB: equivalent to current debugMode=.TRUE.
1776    o introducing pathname variable mdsioLocalDir for mdsio
1777      that can be specified at runtime
1778      (relevant for cluster I/O to local disk)
1779    `
1780    >>>checkpoint51b_post
1781    adjoint of ptracers
1782    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1783    o extended state in checkpoint_lev?, etc.
1784    o alternative ctrl/cost with tr1 or ptracer
1785    o new comlev1_bibj_ptracers
1786    o new ptracers.flow
1787    o made ptracers_forcing same as external_forcing_s
1788    o added verification for adjoint with ptracers
1789      - adm. grdchk fail so far
1790      - tlm. grdchk OK
1791      - checked tapelev/comlev recomputations: OK
1792    <<<checkpoint51b_pre
1793    
1794    checkpoint51a_post
1795    o added code for biogeochemistry package
1796      - new pkgs: dic, gchem
1797      - new subroutine in ptracers
1798    o modify code for biogeo packages
1799      - in model/src and pkg/ptracers
1800    
1801    checkpoint51
1802    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1803      - autodiff, ctrl, exf, grdchk, seaice
1804      kept separate packages
1805      - cost, ecco, obcs
1806    o updating verification/internal_wave, verification/lab_sea
1807      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1808    
1809    checkpoint50i_post
1810    o Preparing next differentiable checkpoint and sync
1811      of MAIN vs. ecco-branch
1812      - 1st step: this one is differentiable
1813      - 2nd step: next(! not this) checkpoint will have updated packages
1814                  from ecco-branch)
1815    
1816    checkpoint50h_post
1817    o new package "land": provide surface BC for AIM.
1818    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1819    o AIM: use true log-P extrapolation for near surface temp (= as in
1820        F.Molteni paper) ; update aim.5l_cs output.
1821    o New variable in PARM03 for more flexible pickups
1822    o somewhat cleaned package initialisation sequence for
1823      ctrl/ cost/ ecco/ in packages_... routines
1824    
1825    checkpoint50g_post
1826    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1827      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1828      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1829        made the default because of faster convergence than ADI
1830    
1831    checkpoint50f_post
1832    o exf totally restructured
1833      - replaced all exf_set_ routines by one generic exf_set_gen.F
1834        and made sure it's still differentiable
1835      - split exf_getffields.F into new exf_bulkformulae.F
1836      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1837      - updated adjoint/makefile and relevant verif. accordingly
1838    
1839    checkpoint50f_pre
1840     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1841          + change Evap over land. (update aim.5l_cs output)
1842     o added missing .cvsignores and made uniform across expts
1843     o changed configuration of tidal_basin_2d expt
1844     o added pkg/debug functions for tracing code in fatal crashes
1845     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1846     o new fn in pkg/monitor to stop model if solution grows too big
1847     o removed lots of single quotes from comments
1848    
1849    checkpoint50e_post
1850    o make KPP work with PTRACERS
1851     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1852       nearly a copy of kpp_transport_s
1853     - there is no analogue to SurfaceTendencyS, so I have to use
1854       gPtr(of the surface layer) instead
1855    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1856    checkpoint50e_pre
1857    
1858    checkpoint50d_post
1859    o change kpp output from multiple-record state files to single-record state
1860      files analogous to write_state.F
1861    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1862      analogous to the cg2d-related output.
1863    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1864      so that writing to internal file fn (with length 512) fails.
1865    checkpoint50d_pre
1866    
1867    checkpoint50c_post
1868    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1869    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1870    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1871    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1872    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1873    
1874    checkpoint50c_pre
1875    Merging from release1_p13:
1876    o bug fix for pkg/seaice dynamic solver
1877    o Added SEAICE_initialHEFF to pkg/seaice
1878    
1879    checkpoint50b_post
1880    o store u*,v* in gU,V instead of in guNm1,gvNm1
1881    o in order to put the momForcing out of the Adams-Bashforth:
1882      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1883      to timestep.F
1884    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1885    o re-generate output for highly sensitive test-exp:
1886       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1887    
1888    checkpoint50b_pre
1889    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1890    o corrected CPP option mismatch in exf_Bulk... functions for case
1891      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1892    
1893    checkpoint50a_post
1894    o Bug fix for merging between c50 and KPP.
1895      ikey was passed from thermodynamics to kpp_calc via
1896      common block rather than being recomputed in kpp_calc,
1897      in contradiction with new key itdkey.
1898      New key ikppkey created, and tamc.h headers updated.
1899    
1900    checkpoint50
1901    - 2nd step of merge with ecco-branch:
1902      merge changes in ecco-branch back into main trunk
1903    - bug fix in find_alpha
1904    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1905    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1906    - merged some sliced AD support routines
1907    
1908    checkpoint49
1909    merged from ecco-branch:
1910    o exf:
1911      - Enable initialisation of forcing fields to constant
1912        (runtime) values.
1913      - in exf_getffields.F
1914        Reduce i-/j-loop to interior domain, discarding overlaps.
1915        That also fixes wrong TAF-key computations for key_1, key_2
1916        with bulf formulae.
1917      - exf_init.F modify #ifdef for exf_init_evap
1918      - exf_getffieldrec.F, ctrl_getrec.F
1919        The following INT-usages are not safe:
1920          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1921          fldcount = int(fldsecs/fldperiod) + 1
1922        and were modified.
1923    o autodiff: checkpoint_lev...
1924      - updated storing for bulk formulae (some arrays were missing)
1925      - added state for seaice package
1926      - synchronized with main branch
1927    o DIVA:
1928      Modif.s in
1929      - the_main_loop.F
1930      - the_model_main.F
1931      and added cost_final_restore.F cost_final_store.F
1932      o With these changes, it is possible to fully separate
1933        the first forward run to compute the cost function (mdthe_main_loop)
1934        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1935        into separate model executions.
1936        This enables better tuning of DIVA to given queue sizes.
1937      o Loss of cost function value in consecutive DIVA runs is
1938        fixed by storing to 'costfinal' file.
1939      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1940        beginning/end of adjoint integration is accounted for.
1941      The current changes apply to TAF-1.4.26.
1942      TAF has one remaining bug, requiring one manual change
1943      (see MITgcm manual).
1944    o cal: synchronized between MAIN and ecco-branch
1945    
1946    checkpoint48i_post
1947    o Changes to restore differentiability of code w.r.t. previous tag
1948      (mostly adding new routines to make list and replacing
1949      pressure by totPhiHyd).
1950    o Updated and merged grdchk package
1951      - has both ADM and TLM checks
1952      - works for single- and multi-proc.
1953      - output cleaned
1954      - worked successfully for parallel DIVA
1955    o genmake:
1956      - Adding -platform=SP4
1957      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1958    o Modif. for DIVA:
1959      ctrl_unpack should not be called in intermediate DIVA interval.
1960      (similar thing would apply for active files such as
1961      tbar, sbar, psbar, which should not be reinitialised;
1962      only relevant for ecco-branch)
1963    
1964    checkpoint48h_post
1965    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1966    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1967    o Added SEAICE_initialHEFF to pkg/seaice
1968    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1969    
1970    checkpoint48g_post
1971    --- EOS:
1972    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1973      store total Potential in totPhyHyd for diagnostics & EOS.
1974    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1975    --- Pressure/geopotential gradient:
1976    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1977    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1978      ( changes results of global_ocean_pressure )
1979    o NLFS + z-coord.: add eta*Rho' contribution.
1980    o accurate phiHyd when using interface-W at the middle between 2 centers
1981     ( changes results of ideal_2D_oce )
1982    o includes r* 2nd term in potential gradient.
1983    
1984    checkpoint48f_post
1985    Merging from release1_p12:
1986    o Modifications for using pkg/exf with pkg/seaice
1987      - improved description of the various forcing configurations
1988      - added basic radiation bulk formulae to pkg/exf
1989      - units/sign fix for evap computation in exf_getffields.F
1990      - updated verification/global_with_exf/results/output.txt
1991    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1992      (SBO) core products, including oceanic mass, center-of-mass,
1993      angular, and bottom pressure (see pkg/sbo/README.sbo).
1994    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1995      to avoid negative values in shallow regions.
1996      - updated verification/natl_box/results/output.txt
1997      - updated verification/lab_sea/results/output.txt
1998    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1999    o Added useSingleCpuIO option (see PARAMS.h).
2000    o Updated useSingleCpuIO option in mdsio_writefield.F to
2001      work with multi-field files, e.g., for single-file pickup.
2002    o pkg/seaice:
2003      - bug fix in growth.F: QNET for no shortwave case
2004      - added HeffFile for specifying initial sea-ice thickness
2005      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2006    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2007      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2008    o pkg/seaice:
2009      - adjoint-friendly modifications
2010      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2011    
2012    checkpoint48e_post
2013    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2014    o dynamics: change definition of computational domain & adapt mom_fluxform
2015      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2016    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2017        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2018        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2019        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2020        inverted_barometer solid-body.cs-32x32x1
2021      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2022    
2023    checkpoint48d_post
2024    o in preparation for r*:
2025     a) use pre-computed gradient of hydrostatic potential:
2026        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2027     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2028        => affects results of glob_oce_pressure (different truncation error)  
2029      update output.txt of ideal_2D_oce & global_ocean_pressure
2030    
2031    checkpoint48d_pre
2032    o in preparation for r*:
2033      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2034      pass the 2 comp. of the grad. as arguments to momentum S/R.
2035      but for the moment, only used if it does not change the results.
2036    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2037    
2038    checkpoint48c_post
2039    Modifications in treatment of initial flux forcing controls
2040    to avoid extra storing of flux fields.
2041    
2042    checkpoint48c_pre
2043    o Added tidal_basin_2d experiment (currently 1D!)
2044    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2045    
2046    checkpoint48b_post
2047    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2048     (modification to pressure gradient not yet implemented)
2049    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2050      (for U & V) that are used for vertical advection of momentum.
2051    
2052    checkpoint48a_post
2053    o In preparation for r*, use temp. array to compute vertical transport
2054       in flux-form momentum pkg. => change results of few test-exp.
2055      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2056                        lab_sea, natl_box & plume_on_slope
2057    
2058    checkpoint48
2059    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2060    
2061    checkpoint47j_post
2062    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2063    o moved adexch from forward_step to addummy_in_stepping
2064    o added exch in ctrl_map_...
2065    o aveFreq.=0. at end of cost_final to avoid overwrite in
2066      reverse checkpointing loop
2067    o Yet more changes in gmredi:
2068      * adgmredi_calc_tensor
2069        avoiding all recomputation of gmredi_slope_limit
2070      * adgmredi_x/y/rtransport
2071        added flag for excessive storing to avoid recomp. of
2072        u/v/rtans, dTdx/y/z
2073        -> this is not really necessary and very memory-consuming
2074      * adgmredi_slope_psi:
2075        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2076      * gmredi_slope_limit
2077        re-activated full calculation of taperfct for case 'ac02'
2078    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2079    
2080    checkpoint47i_post
2081    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2082    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2083      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2084    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2085    o gmredi: fix few bugs.
2086    
2087    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2088    This will be a good checkpoint to plug into the ecco-branch.
2089    o few modif.'s to get latest version adjointed
2090      (mainly kick out code in ini_linear_phisurf)
2091    o modif's to run adjoint with exactConserv
2092    o case GM_BOLUS_ADVEC should be cleaned
2093      S/R gmredi_slope_psi should be cleaned
2094    o verification/carbon now has exactConserv=.TRUE.
2095    
2096    checkpoint47g_post
2097    o time-average AIM output: becomes independent from statvars time-average
2098      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2099    o After TAF bug fix:
2100      Tested adjoint of gmredi package.
2101      Tests were done with checkpoint47 rather than with latest
2102      checkpoint47f_post since the latter is broken for the adjoint
2103      verification/carbon/ contains both ADM and TLM gradient checks.
2104    Here they are, before they get changed/lost/stolen.
2105    Mostly modif.'s to fix numerical sensitivities.
2106    Gradient checks OK for
2107    - GM_taper_scheme:
2108      * clipping
2109      * ac02
2110      * linear
2111      * glw91
2112      * dm95
2113      * ldd97
2114    - GMREDI_OPTIONS:
2115      * GM_VISBECK_VARIABLE_K
2116      * GM_NON_UNITY_DIAGONAL
2117      * GM_EXTRA_DIAGONAL
2118      * GM_BOLUS_ADVEC
2119    in conjunction with data.gmredi parameters to be checked in
2120    in a few minutes under verification/carbon/code/
2121    
2122    checkpoint47f_post
2123    Merging from release1_p10:
2124    o modifications for using pkg/exf with pkg/seaice
2125      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2126        and SEAICE_EXTERNAL_FLUXES
2127      - pkg/exf CPP options EXF_READ_EVAP and
2128        EXF_NO_BULK_COMPUTATIONS
2129      - usage examples are Experiments 8 and 9 in
2130        verification/lab_sea/README
2131      - verification/lab_sea default experiment now uses
2132        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2133    
2134    checkpoint47e_post
2135    o created a tag prior to creating a branch
2136    
2137    checkpoint47d_post
2138    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2139      at the bottom boundary had an erroneous half slip boundary condition
2140    o added bottom drag and no slip boundary condition capabilities to
2141      oceanic pressure coordinates code
2142    o added new verification experiment global_ocean_pressure, this experiment is
2143      also described in the tutorial section of the manual
2144    checkpoint47d_pre
2145    
2146    checkpoint47c_post
2147    o Added a verification experiment for a global cubed-sphere ocean run
2148      -  verification/global_ocean.cubed32x32x30
2149      -  uses pkg/therm_seaice and pkg/bulk_forcing
2150    
2151    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2152    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2153      when using P-coordinate; only implemented for atmospheric config.
2154    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2155      NOTES: requires option NONLIN_FRSURF to be "#define".
2156    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2157    
2158    checkpoint47b_post
2159    Merging from release1_p9:
2160    o pkg/seaice
2161      - removed GOTO's and added taf directives
2162      - double precision constants to reduce the g77 (Linux)
2163        to F77 (SGI) differences reported in release1_p8
2164    o tools/genmake
2165      - added SGI options
2166    o verification/testscript
2167      - updated to that of checkpoint47a_post
2168    o verification/global_ocean.90x40x15/input/eedata
2169      - modified for SGI f77 compatibility
2170    o verification/lab_sea
2171      - added description of sea-ice model
2172      - added missing matlab routines
2173      - added test of thermodynamics parallelization
2174    
2175    checkpoint47a_post
2176    o new pkg: aim_v23
2177     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2178       for now, keep the same surface forcing as before.
2179     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2180     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2181     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2182    o add diagnostic of surface correction term in monitor output
2183    
2184    o bulk_force and therm_seaice
2185    - Two packages:  bulk_force (Bulk forcing)
2186      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2187    - Earlier integration from Stephaine Dutkiewicz
2188      and Patrick Heimbach.
2189    - Two ifdef statements for compile time,
2190       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2191    
2192    checkpoint47
2193    differentiable version of checkpoint46n_post
2194    o bug fix in quasihydrostaticterms
2195    o * "clean" adjoint code (in terms of extensive recomputations)
2196        can now be obtained for all GMREDI options (i.e. for
2197        - GM_VISBECK_VARIABLE_K
2198        - GM_NON_UNITY_DIAGONAL
2199        - GM_EXTRA_DIAGONAL
2200        - GM_BOLUS_ADVEC )
2201      * However, wrong gradient check problem remains unsolved.
2202      * New CPP options have been introduced for different
2203        tapering schemes
2204    o external_fields_load now part of differentiation list
2205    o pressure needs multiple storing;
2206      would be nice to have store_pressure at beginning or
2207      end of forward_step, e.g. by having phiHyd global (5-dim.)
2208      (NB: pressure is needed for certain cases in find_rho,
2209      which is also invoked through convective_adjustment).
2210    o recomputations in find_rho for cases
2211     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2212    o #define ATMOSPHERIC_LOADING should be differentiable
2213    o ini_forcing shifted to begining of initialise_varia
2214    o Incorporating QNVS line search routines into MITgcm
2215      (this is separate code, and therefore not under pkg)
2216      lsopt/, optim/
2217    o Updated verification/carbon/
2218      - #define GM_VISBECK_VARIABLE_K
2219      - GM_taper_scheme    = 'ldd97'    
2220    
2221    checkpoint46n_post
2222    Merging from release1_p8:
2223    o verification/natl_box:
2224      updating new external_fields_load routine
2225    o New package: pkg/seaice
2226      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2227      The sea-ice code is based on Hibler (1979-1980).
2228      Two sea-ice dynamic solvers, ADI and LSR, are included.
2229      In addition to computing prognostic sea-ice variables and diagnosing
2230      the forcing/external data fields that drive the ocean model,
2231      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2232      The implied surface heat flux is then stored in variable
2233      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2234      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2235      non-local transport term.  Because this call precedes model
2236      thermodynamics, temperature under sea-ice may not be "exactly" at
2237      the freezing point by the time theta is dumped or time-averaged.
2238      N.B.: fairly large differences in accuracy occur across
2239            different platforms/compilers; comparison between
2240            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2241            generated output gives:
2242       T           S           U           V
2243      C D M    c        m  s        m  s        m  s        m  s
2244      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2245      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2246      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2247    
2248      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2249    o GAD:
2250      - generated new common blocks to account for call of
2251        same gad routines with differing traceridentities
2252        (needed to modify tracerIdentity indices in GAD.h)
2253      - generated separate common blocks for case useCubedSphereExchange
2254        (Department of Futurology)
2255      - parameter lists to gmredi_?transport: added tracerIdentity
2256      - added new key indices to tamc.h
2257    o external_fields_load:
2258      - added this routine to TAF list
2259      - needed to make some common blocks global and additional storing
2260        along the same lines as exf package (checkpoint_lev?_directives.h)
2261    o exf:
2262      updated external forcing package
2263      - bug fixes carried over from ecco-branch
2264        (missing OBCS_OPTIONS.h in two routines)
2265      - enable easy to use "no forcing".
2266      - added exf I/O for atmospheric loading
2267      - added exf I/O for runoff data
2268      - transfered scaling between exf <-> MITgcm to exf namelist
2269    o Adding new verification experiment global_with_exf.
2270      This verification experiment is almost identical to the
2271      global_ocean.90x40x15 experiment, except that it uses
2272      the exf (and cal) package instead of the
2273      external_fields_load routine (cf README file).
2274    
2275    checkpoint46m_post
2276    o modified testscript to return -- when there are no lines of "%MON" output
2277    o added new flag "quasiHydrostatic" for QH mode
2278      and new routine quasihydrostaticterms()
2279    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2280      New routine: mom_u_coriolis_nh()
2281    o fixed sign of non-hydrostatic metric terms in u and v equations.
2282      Depend on correct sign of gravitySign.
2283    o added work.pc* to .cvsignore in aim directories using ifc
2284    o introduced flag for controllin non-hydrostatic metric terms
2285    o removed gravitySign from PARM04
2286    o switched to g77/ifc from pgf77 in aim experiments
2287    
2288    checkpoint46l_post
2289    o made convective adjustment work with pressure coordinates:
2290     - changed the direction of k-loop in convective_adjustment.F for the
2291       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2292     - adjusted the reference pressure k-index in convective_adjustment.F
2293     - adjusted the convection condition in convect.F (in analogy to
2294       calc_ivdc.F)
2295     - convective_adjustment no longer computes anything on the halos
2296     - removed the warnings about negative salinity from find_rho.F and
2297       find_alpha.F; instead the new routine look_for_neg_salinity, called
2298       at the beginning of find_rho, find_alpha, and find_beta, does a
2299       check of the entire slice, if CPP-option
2300       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2301    checkpoint46l_pre
2302    
2303    checkpoint46k_post
2304    o fixed the verification/global_ocean.90x40x15 experiment:
2305     - new bathymetry (the world according to A., JMC, and M.)
2306     - new initial fields and forcing fields (*.bin files)
2307     - new POLY3.COEFFS (for the next release one should switch to a full
2308       equation of state: JMD95P or MDJWF)
2309     - fixed several errors and redundancies in the data file
2310     - experiment uses looped cells
2311     - added matlab directory with diagnostic scripts for plotting of output
2312    
2313    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2314     - read AIM physics parameters from a file (data.aimphys)
2315     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2316    
2317    checkpoint46j_post
2318    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2319    o move wVel computation at the end of the time step, in S/R integr_continuity
2320    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2321    o update timeave pkg for wVel diagnostic.
2322    checkpoint46j_pre
2323    
2324    checkpoint46i_post
2325    o Clean up AIM package (and keep the results unchanged):
2326      include CPP_OPTION and use IMPLICT NONE in all routines ;
2327      declare all the variables _RL ; use _d 0 for all numerical constants.
2328      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2329    
2330    checkpoint46h_post
2331    o cleaned up the use of rhoNil and rhoConst.
2332      - rhoNil should only appear in the LINEAR equation of state, everywhere
2333        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2334        and the dynamical equations are all divided by rhoConst
2335    o introduced new parameter rhoConstFresh, a reference density of fresh
2336      water, to remove the fresh water flux's dependence on rhoNil. The default
2337      value is 999.8 kg/m^3
2338    o cleanup up external_forcing.F and external_forcing_surf.F
2339      - can now be used by both OCEANIC and OCEANICP
2340    checkpoint46h_pre
2341    
2342     Added code to convert surface volume flux (fresh water) into
2343     a mass flux when using P coordinates in the ocean (OCEANICP).
2344     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2345    
2346    checkpoint46g_post
2347    o Include a new diagnostic variable phiHydLow for the ocean model
2348      - in z-coordinates, it is the bottom pressure anomaly
2349      - in p-coordinates, it is the sea surface elevation
2350      - in both cases, these variable have global drift, reflecting the mass
2351        drift in z-coordinates and the volume drift in p-coordinates
2352      - included time averaging for phiHydLow, be aware of the drift!
2353    o depth-dependent computation of Bo_surf for pressure coordinates
2354      in the ocean (buoyancyRelation='OCEANICP')
2355      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2356        Theta, Salinity, and Pressure in the parameter list. This routine is
2357        presently contained in find_rho.F. This routine does not give the
2358        correct density for 'POLY3', which would be a z-dependent reference
2359        density.
2360    o cleaned up find_rho
2361      - removed obsolete 'eqn' from the parameter list.
2362    o added two new verification experiments: gop and goz
2363      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2364    checkpoint46g_pre
2365    
2366    checkpoint46f_post
2367    o Enable tangent linear (forward mode) gradient checks:
2368      - extended active file handling to g_... files
2369      - added TANGENT_SIMULATION to theSimulationMode
2370      - extended grdchk package accordingly
2371    o added tangent linear setup in verification/carbon/code_ftl
2372    o added adjoint setup in verification/front_relax/code_ad
2373    
2374    checkpoint46e_post
2375    o Added new equation of state -> MDJWF
2376      - EOS of McDougall et al., 2002, JAOT, submitted
2377      - caveat: the equation of state is only valid for a smaller (more
2378        realistic?) range of values than JMD95P/Z and UNESCO
2379      - added masks to the calculation of pressure in store_pressure
2380      - added more check values for density in check_eos (ini_eos.F), some of
2381        the old check values are out of the range of the MDJWF-eos, so don't
2382        expect perfect matches for those
2383    checkpoint46e_pre
2384    
2385    checkpoint46d_post
2386    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2387      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2388      case of pressure coordinates. eosType='JMD95Z' in
2389      combination with buoyancyRelation='OCEANICP' now causes an error.
2390    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2391      in find_alpha/beta.
2392    checkpoint46d_pre
2393    
2394    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2395      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2396    
2397    checkpoint46c_post
2398    o Changes necessary for ocean in p-coordinates
2399     -  Added new buoyancy relation = 'OCEANICP'
2400     -  Added new parameters = gravitySign (this used to be contained inside
2401        the factor dRdZ which I added when we first switched to R coordinates).
2402     X GM/Redi is not compatible (yet)
2403     X bottom drag and no-slip need to be debugged.
2404    checkpoint46c_pre
2405    
2406    checkpoint46b_post
2407    o Added new equation of state -> JMD95Z and JMD95P
2408      - EOS of Jackett and McDougall, 1995, JAOT
2409      - moved all EOS parameters into EOS.h
2410      - new routines ini_eos.F, store_pressure.F
2411    o Added UNESCO EOS, but not recommended because it requires
2412      in-situ temperature (see JMD95)
2413    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2414      unesco.f to be used with POLY3
2415    checkpoint46b_pre
2416    
2417    checkpoint46a_post
2418    o Added (atmospheric) pressure loading
2419      - new field in FFIELDS.h, etc...
2420      - new cpp flag ATMOSPHERIC_LOADING
2421    o Changed hFacC to _hFacC in calc_phi_hyd.F
2422    o Added SHORTWAVE_HEATING to some files for consistency
2423    checkpoint46a_pre
2424    
2425    checkpoint46
2426    further merges from release1_p5
2427    o new ctrl package
2428      - adopted from ECCO environment to enable optimization
2429      - added Eliassen Palm fluxes to controls
2430    o added Eliassen Palm flux controls to gradient check package
2431    o cost package
2432      - Compatible with new ctrl package
2433      - added Eliassen Palm cost hooks
2434      - modif's of existing cost functions
2435    o Adjoint-related bug fixes in kpp:
2436      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2437      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2438    o autodiff package
2439      - flow directives:
2440        + new for S/R do_the_model_io
2441        + enhanced for S/R checkpoint
2442        + new gmredi.flow
2443      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2444        disable adcommon.h/g_common.h by default.
2445      - fixed problem for adjoint of global_max
2446    o modified verification/carbon/
2447    o New setup for adjoint of global_ocean
2448    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2449    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2450    o incorporated hooks for sponge layer code (external_forcing.F)
2451    
2452    checkpoint45d_post
2453    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2454    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2455      (affects plume_on_slope "cg2d" output)
2456    o add new parameter deltaTfreesurf for free-surface time stepping
2457    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2458    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2459    o change phiMin in exp1 (to agree with documentation)
2460    o add new flags:
2461     - T,S forcing inside/outside Adams-Bashforth
2462     - turn off temp,salt advection and/or forcing
2463     - for each tracer, define internal flag for multiDimAdvection & A-B
2464    o monitor: change definition of KE to check conservation of Energy
2465    
2466    checkpoint45c_post
2467    o Removed f90 comments ("!")
2468    o Modified initialisations to enable exf package for MITgcm
2469      (without invoking ECCO_PACKAGE).
2470    o modifications to gradient check package (Martin Losch)
2471      - enable centered differences
2472      - modified format of standard output
2473    
2474    checkpoint45b_post
2475    o cleaned exchange calls in cg2d
2476    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2477    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2478      to configure barotropic setup (Martin Losch)
2479    o moved some initialisations within bi,bj loop in dynamics
2480      (TAF flow dependency)
2481    o in initialise_varia, moved call packages_init_variables
2482      before convective_adjustment_init
2483      (corresponding adjustment of TAF tape initialisation).
2484    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2485    
2486    checkpoint45a_post
2487    o compute Rho over the whole domain (extend iMin,jMin indices)
2488    o specific exchange for X-slice domain (case Ny=1)
2489    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2490    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2491    
2492    checkpoint44h_post = checkpoint45
2493    o Fix to restore differentiability:
2494      place at which packages_init_variables is called in
2495      initialise_varia is crucial for reverse control flow.
2496    o modifications in GMRedi to enable stable adjoint
2497      (corresponding modif's in thermodynamics, dynamics)
2498    o added missing hook for sponge layer code in external_forcing
2499    o modified test cost functions
2500    o storing in gad_advection (plus removal of write(0,*)!
2501    o missing headers TR1.h added in convective_adjustment routines
2502    o errorMessageUnit set non-equal zero in eeboot
2503      (conflict on some platforms, e.g. IBM SP3)
2504    o modified carbon verif.
2505    
2506    checkpoint44h_pre
2507    o vertical grid option: allow to put the Interface at the middle between
2508      2 cell-centers ; replace delZ in pkg/kpp by drF.
2509    o GM Advective form: Tracers are advected using the residual transport (=
2510      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2511    
2512    checkpoint44g_post
2513    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2514      results) ; ifdef missing in thermodynamics.F
2515    
2516    checkpoint44f_pre,checkpoint44f_post
2517    o added PTRACERS package
2518      This allows an arbitrary number of passive tracers to be integrated
2519      forward simultaneously with the dynamicaly model.
2520      + Implemented so far:
2521        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2522        - I/O and checkpointing
2523        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2524      + Not implemented so far:
2525        - KPP
2526        - OBCS
2527      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2528        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2529        line in data.pkg.
2530      + This package is disabled by default since it increases storage.
2531    
2532    
2533    o testscript: added -cleanup option
2534    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2535                 b) enable to filter 2D fields.
2536    
2537    checkpoint44e_pre,post
2538    o re-wrote convective adjustment to use pre-calculated weights
2539      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2540      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2541      Original calls to convect() still in place.
2542    
2543    chkpt44d_pre,post
2544    o added missing EXCLUDE_MONITOR flags
2545    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2546      (incompatible typ in MIN/MAX expressions caused problems
2547      on IBM SP3)
2548    o in genmake added variable MAKEDEPEND
2549      plus resetting for case SunOS
2550    o added timer_stats.c routine for IBM SP3
2551    o removed variables in dynamics
2552    !!! I forgot to create tag chkpt44d_pre !!!
2553    !!! But chkpt44d_pre = chkpt44c_post    !!!
2554    
2555    o real fresh water flux implemented with non-linear free-surface.
2556    
2557    chkpt44c_pre,post
2558    o few fix (mask in shap_s2, EmPmR in external_field_load,
2559      USE_NATURAL_BCS in solve_for_P);
2560    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2561    
2562    checkpoint44b_pre/_post
2563    o merge of relevant stuff from the ecco-branch:
2564      - genmake: removed $S64 overwrite for case SunOS
2565      - pkg/exf: update and corrections for field swapping and obcs
2566      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2567                  harmonized between ECCO and MITgcm
2568      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2569                      updated checkpointing_lev... lists for obcs
2570      - model/src: minor changes in forward_step, plot_field
2571                   added directive for divided adjoint in the_main_loop
2572      - pkg/mdsio: added mdsio_gl_slice
2573    
2574    o check parameters & config (chkpt44a_pre,post)
2575    o OBC and NonLin_FrSurf.
2576    
2577    checkpoint44
2578    o fix bug in mom_vi_del2uv
2579    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2580    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2581    o update AIM experiments (NCEP input files)
2582    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2583    o added some stuff for AD
2584    
2585    checkpoint43
2586    o added two new advection tests
2587    o added global 4x4 degree ocean test
2588    o added test of H&S94 with free surface on cube
2589    o some final mods for gradient check, adjoint,...
2590    
2591    checkpoint42
2592      Fixed AD-related problems:
2593    o Store directives up-to-date with re-arranged Adams-Bashforth
2594      (mainly thermodynamics.F)
2595    o New store directives for multi-dim. advection schemes
2596      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2597      * new common block and key passkey
2598      (mainly gad_advection.F)
2599    o Modified store directives for split of dynamics/thermodynamics
2600      for the case ALLOW_KPP
2601    o Cleaned argument list for timestep_tracer.F
2602    
2603    checkpoint41
2604    o re-formatted/added comments in prologues of key subroutines
2605      to work with protex
2606    
2607    checkpoint40
2608    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2609    o added FLT (floats) package from Arne along with demo. experiment
2610    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2611      implementation of forward-in-time forcing terms
2612    o more mods for non-linear free-surface including new variable
2613    o modified multi-dim method to work on cube
2614    o bug fix in KPP (from DM)
2615    
2616    checkpoint40pre9
2617    o added DST advection schemes
2618    o fix MPI bug on SGI's
2619    o modifications for non-linear free-surface
2620    o fixed conditionals for fixed flow/passive tracer only mode
2621    o added tension/strain form of stress tensor
2622    o changes to commenting of arguments for TAF/TAMC
2623    o added/updated many matlab scripts
2624    o added multi-dimensional advection method for tracers
2625      
2626    checkpoint40pre8
2627    o new package rw/
2628      Added method for dumping intermediate local arrays:
2629      mdsio_writetile - same as mdsio_writefield except works from inside
2630                        bi,bj loop
2631      mdsio_writelocal - same as mdsio_writetile except works for local
2632                         arrays
2633      write_local_r? - higher-level wrapper for mdsio_writelocal
2634      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2635      Example given at end of mom_vecinv.F that dumps some local arrays.
2636    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2637      control flux-form versus vector invariant code.
2638      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2639      or genmake -DISABLE ...
2640    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2641      (additional storing is now needed for case vecinv;
2642      currently nothing implemented to switch this storing off
2643      in case fluxform is used since no CPP flag available).
2644    
2645    checkpoint40pre7
2646    o bug fix in dynamics.F
2647      calc_viscosity called before k=1,Nr loop.
2648    o added some #ifdef's ALLOW_PASSIVE_TRACER
2649    o cleaned initialisations in ctrl_map_ini
2650      related to TAF
2651    
2652    checkpoint40pre6
2653    o split dynamics into thermodynamics & dynamics
2654    o corresponding split of calc_diffusivity into
2655      calc_diffusivity, calc_viscosity
2656      (kpp_calc_diff, kpp_calc_visc).
2657    o Added diffkr, kapgm to control variables
2658    o bug fix in gmredi_slope_limit for ldd97
2659    
2660    checkpoint40pre5
2661    o proper initialization of Adams-Bashforth time stepping
2662      + uses forward step for very first step of model (iter=0)
2663    o re-generated *all* output since almost all output is modified by this
2664      change (sorry but we've been putting this one off for about 2 years)
2665      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2666        *not* regenerated since they are already out of date and I don't
2667        want to create the impression that they are suddenly working.
2668    o removed KAP stuff for DEC's
2669    o modified/added many .cvsignore files in */code and */input
2670    o added new expt "solid-body.cs-32x32x1"
2671      + this uses an alternative form of ini_curvilinear_grid.F which
2672        is not necessarily any better than the current one...
2673    
2674    checkpoint40pre4
2675    o added re-initialisations of utrans,vtrans,rtrans in
2676      calc_common_factors which are crucial for TAF.
2677    o extended iMin,jMin range for calc_common_factors,
2678      calc_diffusivity
2679    o added option ALLOW_PASSIVE_TRACER
2680    o a few minor updates and fixes
2681    
2682    checkpoint40pre3
2683    o created calc_gtr1.F for gad package
2684    o split the_main_loop and re-introduced forward_step
2685    o some recomputations of nIter0 for TAMC
2686    
2687    checkpoint40pre2
2688    o Updated to latest branch of AJA, JMC
2689    o Added gradient check package
2690    o Added routines for passive tracer handling
2691    o Added carbon sequestration sensitivity experiment
2692    
2693    checkpoint39
2694     o Modifications and fixes to support TAMC
2695       (mainly missing or wrong directives)
2696     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2697       in addummy_in_stepping
2698     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2699     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2700     o Included following packages:
2701       cal: calendar
2702       exf: external forcing
2703       ecco: essential routines to control use of cal, exf
2704             (NB: this is not the full ECCO environment)
2705     o disabled some packages by default in genmake
2706    
2707    checkpoint38
2708     o see notes_c37_adj.txt
2709     o corrected wrong layer index in external_forcing_t
2710     o replaced the_main_loop/forward_step by the_main_loop
2711     o removed forceoutput from write_state
2712       (replaced criteria for initial/final state)
2713     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2714    
2715    checkpoint37
2716     o mdsio.F routine split and packaged in pkg/mdsio
2717       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2718        used unless genmake -disable=mdsio)
2719     o allow a more precise surface-geopotential gradient for the atmosphere
2720       taking into account the change in space of Alpha (=1/rho) at the surface.
2721     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2722       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2723     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2724       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2725       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2726     o Time-Average diagnostics defined as a pseudo package "timeave".
2727     o pickup files : old pickup (before c35) did not work with new code (c35
2728       and after) unless activating 2 commented lines in initialise-varia.
2729     o Non-Hydrostatic pickup file Pb fixed.
2730     o bug with Rigid-lid version (since c35) fixed.  
2731    
2732    checkpoint36
2733     o implement Crank-Nickelson barotropic time-stepping
2734     o recover Time-Average diagnostics
2735     o fix Pb in checkpoint (PR#19)
2736     o AIM become a standard package ; clean unused CPP_kees
2737    
2738    checkpoint35
2739     o subtantial rewrite of dynamics.f
2740     o allows staggered time-stepping
2741     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2742     o added bottom drag (linear + quadratic)
2743    
2744    checkpoint34
2745     o Modified exchange routines for correct reverse simulation.
2746     o Added verification output to comply with bug fix in impldiff.F
2747       as of c33 (exp2, natl_box).
2748     o Corrected store directives in dynamics.F
2749     o Corrected array boundaries in impldiff.F
2750     o Corrected array dimensions in gmredi.
2751       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2752     o Added routine GLOBAL_SUM_INT to global_sum.F
2753     o Added mdsio_gl.F for ECCO purposes.
2754    
2755    checkpoint33
2756     o Fixed bug in lower BC in impldiff.F
2757     o Fixed confusion about units of forcing arrays in FFIELDS.h
2758       namely Fu,Fv,Qnet,Qsw,EmPmR:
2759       - Removed verification/natl_box/code/external_fields_scale.F
2760         (did not differ from that in model/src)
2761       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2762         (see FFIELDS.h for description)
2763       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2764         kpp_calc.F and kpp_transport_t.F
2765       - Removed model/src/external_fields_scale.F and calls to it
2766       - verification/natl_box uses flux data with "atmospheric" sign so
2767         a special version of external_fields_load.F is used to
2768         change the data as it's read in. This way, the arrays
2769         have the right units and signs at all times tha a user could
2770         possibly use them.
2771     o Corrected genmake to delete a temporary file during configuration
2772    
2773    checkpoint32
2774     o Scaling of forcing fields moved from external_forcing.F to
2775       external_fields_scale.F, called directly after loading fields.
2776     o Surface relaxation terms added to surface tendency fields in
2777       extra subroutine.
2778     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2779       fields.
2780     o Changes in GMRedi to comply with packaging structure.
2781     o Modifications and bug fixes in KPP package.
2782     o Verification experiment for KPP added (verification/nat_box/)
2783    
2784    checkpoint31
2785     o Packages interface brought in line with defined standard
2786       -> new routines packages_...F
2787       -> changes in initialise_fixed.F, initialise_varia.F
2788       -> enables initialisation interface for ECCO package
2789     o Rescaling of external forcing fields immediately after read
2790       (removed from external_forcing.F)
2791       -> new: surface_fields_scale.F
2792       -> affects ini_foorcing.F, external_fields_load.F
2793     o Computation of surface tendencies before tendency updates.
2794       -> new: external_forcing_surf.F
2795     o Change of variable names useGMRedi, useKPP, useECCO
2796     o Further changes in dynamics.F, impldiff.F for TAMC
2797     o Tested for experiments 0, 2, 4.
2798       - not yet tested for GMRedi.
2799       - not yet tested for KPP.
2800    
2801    checkpoint30
2802     o Updates for OBCs
2803     o New experiment for test OBCs (internal_wave)
2804     o New output.txt in verification/exp4/results/
2805     o Updates for KPP: calculation of viscosity corrected, new variables
2806       kpp_dumpFreq and kpp_taveFreq
2807     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2808       and entry for T90 in genmake
2809    
2810    checkpoint29
2811     o packaged KPP and GM/Redi
2812    
2813    checkpoint28
2814     o Corrected initialization of hFacMin for difference vertical coordinates
2815     o Modified calculation of partial cell thickness to more robust algorithm
2816     o config_summary.F: replaced write_1D_... by write_0D_...
2817       read_write.F: added subroutines write_0D_...
2818     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2819       included some initialisations required for TAMC.
2820     o routine calc_isoslopes: modified sqrt computation to make it
2821       differentiable for zero argument.
2822     o routines dynamics, impldiff:
2823       included store directives and tape key computations required for TAMC.
2824     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2825    
2826    checkpoint27
2827     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2828       formulation works properly with variable resolution.
2829     o restructured the calling tree between the_model_main() and dynamics()
2830     o split initialise() into initialise_fixed() and initialise_varia()
2831     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2832       in new routine ini_psurf()
2833    
2834    checkpoint26
2835     o moved some #ifdef in optional routines to encompass everything
2836       except the argument declarations. This was using up some memory.
2837     o fixed macros like _ADT to work with both versions of Linux cpp
2838     o cleaned up some unused and uninitialized variables
2839       (helps when debugging with strict compile options)
2840     o split up CPP_EEOPTIONS.h into options and macros
2841       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2842     o patch for 2 processor JAM mode
2843    
2844    checkpoint25
2845     o updates for OBCs and NH
2846     o dramatically reduced memory usage
2847     o added "JAM" routines for use on Artic network
2848     o parameterization of convection by implicit vertical diffusion
2849     o added a diagnostic of convective index
2850     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2851       (this is was partly for OBCs and NH but also in anticipation of
2852        an explicit free-surface option)
2853     o initial state input files for U and V
2854    
2855    checkpoint24
2856     o Removed some spurious "REAL"s
2857     o Updated KPP to latest version from JPL
2858     o Added a COS(latitude) in horizontal viscosity
2859    
2860    checkpoint23
2861     o Added del^4 diffusion for salt and temperature
2862     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2863    
2864    checkpoint22
2865     o Made many small changes: implicit none, format(i5), etc...
2866     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2867    
2868    checkpoint21
2869     o Introduced new I/O package that supports direct-access records (mdsio.F)
2870     o Split-up mid-level I/O routines
2871     o Updated input data for experiments 0,1,2,4 and 5
2872     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2873    
2874    checkpoint20
2875     o Tidied up open-boundaries some more
2876     o Added non-hydrostatic code
2877     o Fixed some input data
2878     o Modified MPI start-up to work in "coupled" context.
2879    
2880    checkpoint19
2881     o Tidied up directory structure for verification experiments.
2882     o Added new code for open boundaries.
2883     o Corrected advective terms near boundaries.
2884     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2885     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2886     o Split default parameters out of ini_parms.F into set_defaults.F.
2887    
2888    checkpoint18
2889     o Further changes for optional code generation with
2890       CPP - ugh!
2891    
2892  checkpoint17  checkpoint17
2893   o Beginning to incorporating modularity   o Beginning to incorporating modularity
2894     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

Legend:
Removed from v.1.16  
changed lines
  Added in v.1.681

  ViewVC Help
Powered by ViewVC 1.1.22