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revision 1.62 by adcroft, Wed Feb 27 21:19:59 2002 UTC revision 1.690 by mlosch, Thu Jun 29 15:42:14 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 real fresh water flux implemented with non-linear free-surface.  o pkg/exf/exf_check_range.F
8     - add tile index to diagnostics and move stop statement to the very
9       end of the routine.
10    o pkg/diagnostics: (diagnostics_main_init.F)
11      define title of isomorphic variables according to the current config.
12    o pkg/thsice with pkg/seaice dynamics:
13    - fix domain of computation (interior only, required for exf) and do exchanges
14    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
15    o towards a standard way of dealing with multi-threading in MONITOR
16      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
17    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
18       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
19    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
20    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
21    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
22       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
23    o tracer advection:
24     - clean-up and simplify calc_common_factors.F
25     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
26       advection subroutine (but still not used within DST advection S/R)
27    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
28    
29    checkpoint58j_post
30    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
31      from file (collects calls previously in FORWARD_STEP)
32    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
33    o adjoint store dir. adjusted accordingly
34    o genmake2
35      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
36    
37    checkpoint58i_post
38    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
39      on wind stress (SEAICEstressFactor defaults to 1.)
40    o Total number of Timers is finite (<=40): comment out 2 non-essential one
41      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
42    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
43      on CS-grid: no longer loosing mass.
44    o exf & curvilinear-grid: no longer modify longitude xC & xG.
45    o pkg/ggl90: fix sloppy output and fix a bug
46    o pkg/seaice: added SEAICEuseEVPpickup parameter
47      - Set to false in order to start EVP solver with
48        non-EVP pickup files when using SEAICEuseEVP
49      - fix sign error in diffusion in seaice_calc_rhs
50    
51    checkpoint58h_post
52    * Modifications for bottom topography control
53      o replace hFacC by _hFacC at various places
54      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
55      o add non-self-adjoint cg2d_nsa
56      o update autodiff support routines
57      o re-initialise hfac after ctrl_depth_ini
58      o works for 5x5 box, doesnt work for global_ocean.90x40x15
59    * Adding verification for 5x5 box (4-layer) bottom topography control
60    
61    checkpoint58g_post
62    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
63       used for mean seasonal cycle, mean diurnal cycle); add an example
64       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
65    o pkg/ggl90:
66      - add parameter (minimum surface kinetic energy)
67      - fix bug (avoiding division by zero)
68    o couple pkg/thsice to pkg/seaice:
69      - modify advection in seaice to accomodate new scalar fields to be advected
70      - only muliDimAdection scheme work with seaice/thsice
71      - mapping of thsice-variables to seaice-variables, back and forth
72      - does not break the verification experiments, but does not give the
73        desired results either
74    o pkg/seaice
75      - make (default) second order advection a bit less confusing?
76    
77    checkpoint58f_post
78    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
79      to pkg/seaice):
80      - new routines thsice_map_exf and thsice_get_exf provide the interface
81      - add an additional formal parameter to thsice_solve4temp
82    o pkg/exf:
83      - add new fields wspeed, snowprecip (to be able to couple to thsice)
84      - correct Stefan-Boltzmann constant
85      - new parameter for longwave surface emittance
86      - separate some stuff from exf_bulkformulae into new routines  
87        exf_radiation, exf_wind
88      - add new parameters and constants: longwave emissivity for ocean, ice
89        and snow, evaporation parameters over ice
90      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
91        either wind from stress or stress from wind
92    o pkg/thSIce:
93    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
94    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
95       and THSICE_CALC_THICKN
96    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
97    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
98      to make debugging easier.
99    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
100    o pkg/bulk_force:
101      - clean-up comments and parameters ;
102      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
103    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
104      generate new output for test-experiment: aim.5l_cs.thSI
105    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
106      testreport accordingly
107    
108    checkpoint58e_post
109    o SEAICE_CGRID adjoint done
110    o R_STAR adjoint implemented.
111      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
112      * need to sort out init. of h0facc, etc.
113    o Make pkg/profile fully independent of ecco,cost, etc. stuff
114      to be able to use it in pure forward.
115    
116    checkpoint58d_post
117    o upgrade simple test-experiment to tutorial example:
118     step.1: duplicate the experiment and (step.2) will remove the old copy.
119      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
120      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
121      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
122      tutorial_global_oce_biogeo    <- copy of dic_example
123      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
124      tutorial_plume_on_slope       <- copy of plume_on_slope
125      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
126      tutorial_global_oce_optim     <- empty for now (David ?)
127      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
128     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
129    o correct a sign problem in cost_scat.F
130    o obcs and ptracers: fix boundary conditions for advections schemes
131      with larger stencil
132    o thsice adjoint: start
133    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
134      completeness
135    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
136      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
137    o ptracers adjoint:
138      * avoid extensive recomputatations
139      * fix missing re-init. of gptr (missed by TAF)
140    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
141      me to turn off the excessive output to STDOUT that this package produces
142    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
143      and add those terms in Vector-Invariant formulation.
144    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
145      if the control period (xx_hfluxperiod etc) is 0
146    o in profiles pkg, clean routines and fix details
147    o in ecco pkg, reading ssh data:
148      fix problem in case the model does not start at iter0=0
149    o fix mnc-pickup/restart for ptracers
150    o new package prifiles:
151      code to compute profile-based cost by Gael Forget
152      (modifs in ecco, ctrl, autodiff)
153    o Benign bug fix in initialization (spotted by M. Mazloff) of
154      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
155    
156    checkpoint58c_post
157    o adjoint: finish NLFS adjoint and provide reference output in
158      verification/global_ocean.90x40x15/results_ad_nlfs
159    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
160      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
161      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
162      with SEAICE_CGRID defined.
163    o move calendarDumps from "data" to "data.cal" and clean-up the code
164      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
165    o add useEXF & useCAL flags (for now, set in hard-coded way)
166    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
167      (were missing in NH mode, and wrong in quasihydrostatic mode).
168      waiting for Chris updated version of calc_gw to add those CALLs.
169    o fix bug in quasihydrostatic S/R ;
170      add a test for this option: global_ocean.90x40x15.qshyd
171    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
172      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
173    o add on/off flag useOffLine for package OFFLINE
174    o seaice:
175      - modify advection so that it works also on the C-grid
176      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
177        problem in multi-tile runs with C-grid
178      - add flags for clipping ice velocities and/or masking solver forcing
179      - fix drag (ocean on ice) formulation and a bug that caused noise in the
180        C-grid solver
181      - added a few comments to seaice_diffusion.F
182      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
183        are now exclusive)
184      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
185        required re-ordering the code a little:
186       + make DAIRN global variable (defined in SEAICE)
187       + move computation of the viscosities eta and zeta into a new separate
188         routine (because I need to recompute them in seaice_ocean_stress.F)
189    
190    checkpoint58b_post
191    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
192      update output.txt of exp. aim.5l_cs.thSI
193    o various mnc cleanups and improvements:
194      + shrink lookup tables by factor of ~4
195      + better error reporting when running out of lookup space
196      + able to handle longer path/file names (up to 500 chars)
197    o adjoint:
198      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
199      - TBD: "hidden" mom_vecinv recomp. in dynamics
200    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
201     (allow to differentiate between forcing components using new integer flags:
202      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
203     and add new flag to put Dissipation tendency out of Adams-Bashforth.
204    o ecco
205      - enable trend removal from SSH anomaly obs.
206    o adjoint
207      - a fix for PmEpR when #undef EXACT_CONSERV
208      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
209      - try to fix "hidden" recomp. in forward_step for NLFS
210        (NLFS seems broken sometimes after I checked it in)
211    o seaice:
212     - add c-grid version of the dynamic solver:
213       + three new routines that are the c-grid substitute lsr, dynsolver
214         and ostres
215       + put a few fields that were local to dynsolver into global common
216         blocks, so that I can move the computation of stresses etc into
217         seaice_lsr (saves coding but may break the adjoint).
218     - replace more hardwired parameters by runtime parameters
219     - add ice masks that mask the rhs of the implicit solvers where there
220       is no ice (commented out in seaice_dynsolver, because i am not sure
221       if this works properly), eventually this should replace the clipping
222       of ice velocities in seaice_dynsolver to +/-40cm/s.
223    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
224      include it only where its needed
225    o move balancing of fluxes before the call of external_forcing_surf
226    o seaice:
227      - correct units of turning angles (now they are really in degrees)
228      - move computation of GWATX/Y out of main routine into dynsolver
229      - initialize GWATX/Y in seaice_init
230    o Apply mask on Fresh-Water flux (needed for SSH forcing).
231      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
232    o seaice: add runtime flags for turning angles (default to zero)
233    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
234      and trend from exf forcing and ctrl control adjustments
235    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
236      (since checkpoint57x_post)
237    o change the default rotation period to 86164.s = the Earth rotation
238    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
239      and based on a reference stratification. Tested within hs94.cs-32x32x5.
240    o seaice advection: add code for choosing between the default (2nd order
241      central differences) and multiDim advection schemes provided by
242      pkg/generic_advdiff
243    o seaice:
244      - removed all references to SEAICE_GRID.h fields from
245        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
246        (cubed-sphere configuration will change a little)
247      - grid computations in seaice_init are obsolete now.
248      - cleaned up code a little so that is easier to read (hopefully).
249      - added new (better?) discretizations of default advection and diffusion
250        (turn on with SEAICEuseFluxForm)
251      - replace 1 in 3d global fields by kSurface in growth.F
252      
253    checkpoint58a_post
254    o seaice:
255      - bug fix in advect.F
256    o shelfice:
257      - separate shelfice load anomaly from pload (breaks with time
258        dependent forcing), => introduce constant field shelficeLoadAnomaly.
259        Its default is 0., but it may be computed more cleverly from (unknown)
260        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
261        done offline. A good approximation of the pressure load anomaly is
262        necessary to avoid large initial adjustment processes underneath
263        deep-reaching shelfice.
264      - small fix in ISOMIP shelfice_thermodynamics
265      - add more sophisticated thermodynamics of Hellmer (1989), this is
266        now the default
267      - give a few constants more intuitive names
268    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
269      if bulk formulae are used in long integration (especially EmPmR). Turn
270      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
271      if balancePrintMean, the imbalance that is substracted is printed to
272      STDOUT.
273    o fix bug (typo) in obcs_apply_eta.F
274    o add a new package shelfice which enables us to model the circulation
275      underneath shelf-ice with draughts of hundreds of meters.
276     - works
277     - to do: + include improved thermodynamics
278              + check whether kSurfC (from model/inc/SURFACE.h) can be used
279                instead of new field kTopC
280              + can we use topoFile, Ro_surf and existing code in ini_depth.F
281                instead of new field R_shelfIce and new code in ini_depth.F
282                and ini_mask_etc.F?
283              + adjust vertical mixing schemes?
284    o seaice pkg:
285     - add a cpp-flag to include a simple formula for a salinity dependent
286       freezing point of sea water at the surface
287     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
288       meridional stresses are now different (and hopefully correct)
289    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
290       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
291       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
292    o pkg/diagnostics: add options and parameters for regional-statistics
293       diagnostics ; define regions by reading a region-mask from a file
294       (might add other options later)
295    o pkg/bulk_force:
296     - add option and parameters to use AIM surface-flux formulae.
297     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
298       others forcing fields (defined in PARM05, parameter file "data") are loaded
299       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
300     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
301     - use the right EXCH call for uwind,vwind (to work on CS-grid).
302     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
303       and parameters (note: calcWindStress replaces .NOT.readwindstress).
304     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
305    
306    checkpoint58
307    o add "--embed-source" option to genmake2 which, when the supporting
308      tools can be compiled (as determined by genmake2) will turn on the
309      embed_files package which then embeds the entire MITgcm source code
310      (*.[fFhc] + Makefile) used for the build within the executable
311      - requested by CNH but off by default
312      - adds a paltry <9MB to the mitgcmuv executable in most cases
313      - only writes the output when useEMBEDSRC in eedata is true
314    o clean up 3-dim. relaxation codes:
315      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
316      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
317      * Thanks to Tom Haine for testing!
318    
319    checkpoint57z_post
320    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
321      affects output (@ truncation level) of exp. plume_on_slope ; updated.
322    o fix the pickup behavior for obcs in combination with ptracers
323    o fix a bug in ptracers_external_fields_load
324    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
325      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
326    o transfered surface NH pressure to eta field (if exactConserv).
327    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
328         and update lab_sea output.txt file.
329    o completing 3-dim. relaxation code: additional term
330         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
331      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
332      * At compile time, in "EXF_OPTIONS.h" set
333          #define  ALLOW_CLIMTEMP_RELAXATION
334          #define  ALLOW_CLIMSALT_RELAXATION
335      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
336          tauThetaClimRelax3Dim = 15552000.0,
337          tauSaltClimRelax3Dim  = 15552000.0,
338      * 3 cases:
339          1) Use a constant-in-time 3-dim. field
340          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
341          3) Real-time relax. to time-evolving prescribed field
342    o Adding Laplacian-type smoothness constraint on
343      initial and boundary (forcing) controls (ic, bc)
344      * enable at compile-time via
345        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
346      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
347      * Absolute scale somewhat unclear so far
348      * no area weighting was included since no other cost term does so far
349    
350    checkpoint57y_post
351    First step for a NLFS adjoint
352    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
353    o new init. routines for calc_r_star, calc_surf_dr
354    o still need to deal with ini_masks_etc
355    o testreport seemed happy
356    checkpoint57y_pre
357    
358    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
359    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
360    o add new offset feature to offline pkg (plus minor cleanup)
361    o cfc fixes for final year of integration
362    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
363      be in GCHEM_OPTIONS).
364    
365    checkpoint57x_post
366    o fix testreport Pb in multiple test experiment.
367    o cleanup our namelist syntax in verification:
368      - make it more F95 standards compliant (some work still needed)
369      - allows the vast majority of our tests to work with gfortran
370    o Non-Hydrostatic:
371     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
372     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
373    o Allow to apply AB on T,S rather than on AB(gT,gS):
374     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
375     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
376       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
377     - need a "clever" read_pickup to restart from the other AB formulation
378    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
379    o remove some unused variables (reduces number of compiler warnings)
380    o adjoint
381      * Disable useVariableViscosity for adjoint for time being
382        (there are a number of extensive recomputations)
383      * Initialize certain variables needed for adjoint
384    
385    checkpoint57w_post
386    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
387                 fix the singleCpuIO RS version of MDSWRITEFIELD
388       and add a WARNING if using globalFiles=T with multi-processors.
389    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
390      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
391    o tracer advection scheme:
392      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
393       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
394       was not very convenient).
395      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
396       (further tests needed for the implicit DST & Flux-Limiter schemes).
397    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
398      and sRef for convenience, handy, when you want to initialize
399      ptracers in a large domain with a constant non-zero value. Also,
400      untangle ptracers_init.F a little.
401    
402    checkpoint57v_post
403    o change dome exp. to use variable viscosity in side-drag terms.
404    o remove all the files from the cfc_offline test since they are now
405      incorporated into tutorial_cfc_offline which has been producing
406      identical results for a few days of testing
407    o add new parameter: sideDragFactor to enable half-slip-side BC
408      and change side-drag S/R to use viscosity from mom_calc_visc
409      (can switch back by setting sideDragFactor=0.); affects results at
410      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
411       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
412    o vorticity & strain are now computed without masking, to account for
413      no-slip-side BC in variable viscosity calculation ; mask is applied
414      anyway later on, before computing advection/coriolis terms.
415    o modify exp4 to test new obcs support for reading from external files
416      and for passive tracers
417    o fix behavior of ptracers_monitor when monitor output is written to a
418      netcdf-file; still not independent of monitor.F (writes in the same
419      file).
420    o change default value of tRef (put a uniform, meaningful value for ocean
421      & atmos) and initialize sRef (was missing, as Martin mentioned).
422    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
423      to be proportional to enstrophy dissipation length.  Thus,
424       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
425      This is now consistent with Smagorinsky and with the manual.
426    
427    checkpoint57u_post
428    o OBCS and PTRACERS: add open boundary support for passive tracers
429      - either use homogenous (pseudo) v.Neumann conditions or prescribe
430        OB-values from file; this is not different from the way theta and salinity
431        are treated
432      - however, Orlanski-radiation conditions are not supported, and the model
433        will stop if you use pTracers and Orlanski at the same time.
434      - beefed up the rountine obcs_external_fields_load: now only those open
435        boundary values are overwritten with values from files for which there
436        are really files, otherwise the OB-fields remain untouched. This makes
437        it possible to use different OBs at different ends of the domain (as
438        with EXF)
439    o reduce number of exch calls in shap_filt (s2).
440    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
441      truncation level) 4/5 MLAdjust test results (11&12 digits match).
442    
443    checkpoint57t_post
444    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
445    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
446      same truncation, independent of the face number: affects affects several
447      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
448    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
449      note that biharmonic viscosity + no-slip was not tested in any experiment.
450    o fix bug in non-linear free-surf side-drag ; generate new output for
451      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
452    o make mnc honor the writeBinaryPrec flag for most kinds of output
453    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
454    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
455      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
456    o add brackets in multi-terms sum to get same truncation, independent of
457      the face number (manage to get exactly same value of gU,gV at the cs-edge)
458      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
459    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
460      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
461      a maximum grid-scale Reynolds number.  Also, changes all length calculations
462      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
463      Suggested values of viscosity parameters found in mom_calc_visc.
464      Many new viscosity diagnostics available.
465    
466    checkpoint57s_post
467    o Add clearing-house for viscosity calculations, mom_calc_visc and
468      correct numerous bugs in LeithD and Smagorinsky discretizations.  
469      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
470      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
471      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
472      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
473      The Strain-Tension form is now called with useStrainTensonVisc=.true.
474      ViscAhStrain and viscAhTension are now retired.
475    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
476    o In response to JMC's bug report, genmake2 now ignores any soft-links
477      that it finds in the *current* directory when searching for files.
478      Soft-links found in any other source directories will still work as
479      they did before.
480    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
481      a C routine to unlimit the stack size
482    o mnc-ify pkg/aim snapshot vars
483    o mnc-ify pkg/land as requested by Daniel
484    o various changes to mnc including:
485      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
486      - output can now be grouped so that all files within a group
487          change the ITER portion of their names in lock-step together
488      - can now read ("global") PER-FACE (in addition to PER-TILE) files
489          and works with both EXCH1 and EXCH2 (but needs more testing)
490      - writing works for all verification test cases w/ g77 on Linux
491    
492    checkpoint57r_post
493    o make MNC variable initialization happen earlier
494    o add diagnostics for (almost) each term of the momentum Eq.
495    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
496    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
497    o remove MINIMAL_TAVE_OUTPUT option ;
498      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
499    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
500      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
501    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
502    o add time-dependent SST, SSS control
503    o cost terms in ecco/ modularized (new cost_generic.F)
504    o cost_averages routines are modularized (new cost_averagesgeneric.F)
505    o new infrastructure for seaice model vs. obs misfits in seaice/
506      * driver from the_main_loop.F is seaice_cost_driver.F
507      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
508      * gradient check in Exp. 6a of natl_box_adjoint/
509    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
510      (see README file)
511    
512    checkpoint57q_post
513    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
514    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
515      - bug was reported by Jean-Michel and Ian Fenty
516    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
517      update exp. cpl_aim+ocn output.
518    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
519      Needed for high-res. runs with large global files
520      to be able to limit tapelev size
521    o Changed some tests for adjoint:
522      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
523      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
524      * global_ocean.90x40x15/ back to default 3-level checkpointing
525    o Modifications to enable scripted COMMON to MODULE conversion
526      * verification/OpenAD/code/ has necessary scripts and description;
527      * converts, compiles and runs successfully;
528    
529    checkpoint57p_post
530    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
531    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
532      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
533    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
534    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
535      (was already the case for dissipation with mom_vecinv,
536       and also the case for grad.PhiHyd when staggered-timeStep)
537      This will allow to put dissipation out-off the AB time-stepping.
538     Unfortunately, affects truncation error. Update output of exp. that "fails"
539      (cg2d matching number) and leave the others for later: front_relax(10),
540      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
541      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
542    
543    checkpoint57o_post
544    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
545      (2) its ready to be documented during the 20050801 DocFest
546    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
547      for ideal_2D_oce and lab_sea on linux_ia32_g77
548    o set to #undef CTRL_SET_OLD_MAXCVARS_30
549      in global1x1_tot/code_seaice_adj to access indices 32, 33
550      (worth another tag)
551    
552    checkpoint57n_post
553    o adding precip control xx_precip 32
554    o adding swflux control xx_swflux 33
555    o Replacing 10 forcing penalty cost routines by 1 generic.
556    o Implementing partitioning in time-mean and variable adjustment
557      for atmos. state.
558    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
559    o in natl_box_adjoint:
560      * updated exp 1 to 10
561        (but does not have time-mean vs. variable split results yet)
562    o updated global1x1/*_seaice_adj/
563      to incorporate latest changes
564    o enable useSingleCpuIO for mdsio vector routines
565      (applies in particular to tapelev I/O)
566    o removed inefficient K-loop in all active_file*control*.F
567    
568    checkpoint57m_post
569    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
570      and advect_cs (use EXCH-2 and standard cs-32 grid files).
571    o pkg/exch2: filling of face-corner halo regions is optional
572      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
573    
574    checkpoint57l_post
575     tag before updating tutorials (pre-release-2)
576    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
577       for output and interpolation of input fields onto model grid)
578    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
579       Affects results of exp. rotating_tank ; update output.txt.
580    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
581          and taking the square quantity and/or using a fraction-weight field.
582    o fix aim_diagnostics_init.F mate numbers.
583    o add mnc output capability to diagnostics/diagstat and update
584      our cvsignore files for the ACSII output generated
585    
586    checkpoint57k_post
587    o lab_sea now uses diagnostics package and provides a suite of
588      new EXF diagnostics output.
589    
590    checkpoint57j_post
591    o exf
592      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
593        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
594        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
595      * extended diagnostics output
596        - now includes all EXF variables
597        - hs, hl moved to common block
598        - separate S/R for diagnostics, called after ctrl vector is added
599        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
600        - EXFqnet contains true Qnet (i.e. includes qsw)
601      * updated verif. lab_sea, global_with_exf
602      * Rearranging hflux (exf_mapfields -> exf_getforcing)
603        to ensure that diagnostics sees a true EXFqnet
604    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
605    o diagnostics pkg: change pointers so that 1 diagnostic can be used
606      several times with different frequencies.
607    o mnc-ify the thsice package as requested by Daniel Enderton
608      - the monitor--MNC output needs work
609      - many attributes need to be added (most are currently blank)
610    o mnc-ify theaim_v23 package as requested by Daniel Enderton
611      - many attributes need to be added (most are currently blank)
612    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
613    o add Sadourny like discretization to the 4th.O vorticity advection scheme
614    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
615      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
616         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
617    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
618     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
619    
620    checkpoint57i_post
621    o Diagnostics package was changed: diagnostic allocation is now deactivated
622      by setting an empty file name in the namelist (used to be by setting 0 frequency)
623    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
624      add 1rst Order upwind vertical Shear.
625    o add a quick fix for A/B checkpointing in OFFLINE mode
626    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
627      end-run around the C/Fortran linking horror in eesup/src/timers.F
628    o added pkg/runclock: allows user to terminate run based on wall clock
629    o added non-hydrostatic scaling parameter: nh_am2
630    o pkg/my82: futile attempt to make results compiler-independent by adding
631      some "_d 0", etc. no effect.
632    o for mnc output, fill the 'T' coordinate var with myTime and create a
633      separate 'iter' variable for iteration count
634    o pkg/diagnostics:
635      add new capability: output of Global/Regional & per-level statistics ;
636      tested against monitor output (including land & thSIce) on various exp.
637    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
638    
639    checkpoint57h_done
640      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
641      data.diagnostics, data.gchem, data.ptracers) is done.
642    
643    o pkg/diagnostics: prepare for Global/Regional statistics.
644      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
645    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
646      and rename it: DIFFERENT_MULTIPLE
647    
648    checkpoint57h_post
649    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
650    o pkg/diagnostics: change output frequency, now in seconds (instead
651      of Nb of iterations). This requires to change data.diagnostics.
652    checkpoint57h_pre
653    
654    o in mnc, let the user create the output dir if both mnc_outdir_date
655      and mnc_outdir_num are false
656    o add fflags() to pkg/diagnostics which allows one to specify, on a
657      per-file basis, the file precision [default behavior is unchanged]
658    o added diagnostics to pkg/kpp, including computation of mixed layer
659      depth based on a temperature/density criterion
660    o updated verification/natl_box to test the new pkg/kpp diagnostics
661    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
662    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
663    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
664      not mnc -- this mistake was found by JMC and is now corrected
665    
666    checkpoint57g_post
667    o add Adams-Bashforth 3rd Order time stepping:
668      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
669      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
670    checkpoint57g_pre
671    
672    o make lambda[Theta,Salt]ClimRelax spatially varying
673      (default remains spatially uniform constant based on tau)
674    o added new control variables
675      * init. uVel, vVel, etanN
676      * lambda[Theta,Salt]ClimRelax
677    o separate masks used for ctrl_pack/unpack 'from write_grid' output
678      (suggested by G. Forget)
679    
680    checkpoint57f_post
681    o add parameter "baseTime" = model base time = time at iteration zero
682      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
683      account for baseTime shift
684    o move Coriolis arrays from PARAMS.h to GRID.h
685    checkpoint57f_pre
686    
687    o mnc-ifying the seaice package
688    o introduced an alternative length scale calculation for use in the limiting
689      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
690    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
691    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
692      as well as grad(vort3).  Made it compatible with both approximate form
693      for the cubed sphere and full form of these gradients.  Added flag
694      useFullLeith to select between approximate and full form.  
695    o add "d0" in getcon.F to reduce differences between compilers/platforms
696      update output.txt of exp. fizhi-gridalt-hs
697    o change port_rand funtion to allow to set the seed.
698    o fix obscure MNC bug involving conversion between reals and integers
699      - it caused no problems with certain (eg. gcc, ifc) compilers but the
700        new version is now more standards-compliant
701    o adjoint-related modifications
702      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
703      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
704      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
705    
706    checkpoint57e_post
707    o Adding eddy stress controls a la Ferreira et al.
708    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
709    
710    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
711      update output.txt of exp. fizhi-gridalt-hs
712    o add more "Z" dimensions and associated coordinate vars to MNC
713    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
714    o parameter calendarDumps: when set, approximate months (30-31 days) and years
715      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
716      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
717      months and years.  Requires pkg/cal.
718    o diagnostics: add pickup functionality
719      - off by default for backwards compatibility
720      - current version only uses MDSIO -- MNC will be added
721    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
722    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
723    
724    checkpoint57d_post
725    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
726    o modify verification/ideal_2D_oce so that it tests the creation of mnc
727      output from the diagnostics package
728    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
729    o make genmake2 more portable by using ".$FS" instead of ".f" for more
730      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
731    o add coordinate variables to the MNC output from the diagnostics package
732    o change MNC-flags default value: true when useMNC=TRUE
733    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
734      the ability (off by default) to read the grid information using MNC
735    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
736    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
737    o do snap-shot diagnostics at the middle of the time-interval (instead of
738      at the end).
739    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
740      new test for AIM with thSIce + slab-ocean
741    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
742    o move state variable diagnostics to the beginning of the time step ;
743      (note: still needs some work specially for snap-shot diagnostics)
744      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
745    
746    checkpoint57c_post
747    o Change testing option (-ieee) to get closer agreement between g77 & ifort
748    o generate new output.txt files on faulks with g77 & the new -ieee option
749    checkpoint57c_pre
750    
751    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
752      update output.txt of exp. global_ocean.90x40x15
753    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
754      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
755    o add saltFlux(+File) forcing capability with periodicExternalForcing
756    o allow to use pkg diagnostics for GM-Redi & ThSIce output
757    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
758    o improvements for the MNC output from DIAGNOSTICS:
759      - correct handling of the unlimitied dimension
760      - all dims now have associated coordinate variables
761      - variables located at U, V, and Corner ("Z") points are now written
762        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
763        *all* data points are output
764    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
765    o added pkg/seaice/seaice_monitor.F
766    o mdsio_readfield.F can now read files visible only to master MPI process.
767    o pkg/seaice: some test code for ice-modified ocean stress
768    o exf_getffields interpolation defaults to bilinear for all scalar forcing
769      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
770      spurious negative numbers for precipitation and humidity.  Will cause
771      some small numerical differences for integrations using pkg/exf/exf_interp.F.
772    o pkg/ctrl/
773      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
774        May be enabled via doPackDiag
775      *  introduce z-scaling of
776         + gradient (doZscalePack) and
777         + control (doZscaleUnpack)
778    o pkg/mdsio/
779      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
780      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
781    
782    checkpoint57b_post
783    o simplify options in diagnostics_fill arguments (remove weird combinations)
784    o fix MNC coordinate variables so that they now contain per-face index
785      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
786      general, EXCH2 grids are only aligned to a "local" coordinate system
787    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
788    o Implement instantaneous output within pkg diagnostics:
789      setting a negative frequency in data.diagnostics produces
790     "snap-shot" output (as opposed to time-average if freq > 0)
791    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
792      NOTE: change ptracer diagnostics name: use 2 characters to work with
793            more than 9 tracers. Add also diagnostics of advect & diffus flux.
794    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
795      becomes the coordinate variable for the 'T' dimension
796    o add CF-style coordinate variables to MNC
797      - just a first cut:  numbers are meaningless on the cubesphere and
798        missing along the T axis but otherwise it works!
799    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
800    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
801    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
802      this is based directly on what the model compute, so that the content of
803      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
804    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
805    o clean up build options files for SunOS, in particular
806      - remove -traditional from xmakedepend
807      - change -xarch=v9 to -xarch=native for f77
808      - restore use of make (not gmake)
809      - add CC=gcc if using g77
810    o changes per discussion of AM, JMC, & EH3 today:
811      - move redundant "grid" variables out of "state" -- in preparation of
812        creating proper CF-style coordinate variables and in recognition
813        that any/all grid variables can be easily copied (eg. w/NCO) from
814        the grid files into any of the other NetCDF files
815      - *always* output grid variables with MDSIO (this will eventually be
816        changed)
817      - output MNC grid file if useMNC is true
818    o every instance of _END_MASTER() has been found and replaced with
819      _END_MASTER( myThid ) in order to satisfy certain picky Sun
820      preprocessors
821    o re-arrange diagnostics pkg initialisation:
822     - allow each package to extend the available diagnostics list
823     - add some checking and fix small problems (multi-threaded, ...)
824     - new S/R diagnostics_fill (replace fill_diagnostics):
825       look through the short list of active diag. (instead of the long list)
826       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
827    
828    checkpoint57a_post
829    o this set of changes restores TAMC compatibility
830      tested for global_ocean.90x40x15 adjoint on trough
831      (what a pain)
832    
833    checkpoint57a_pre
834    o some modifs in tools/build_options for sunos
835    o call ctrl_pack for ctrl at end for optimcycle=0
836    
837    checkpoint57
838    o add horizontal bi-harmonic viscosity for vertical velocity
839      - new parameter viscA4W (defaults to viscA4)
840      - affects only non-hydrostatic code
841      - to be done: no-slip lateral boundary conditions
842    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
843    o implement Implicit Vertical advection for pTracers
844    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
845      (implemented also for implicit vertical diffusion & advection)
846    o OBCS: extend application of tracer open boundary conditions
847      to a strip beyond the boundary of width Olx/Oly
848    o add call monitor to TAF set of required calls (flow directives)
849      and include in natl_box_adjoint
850    o untangle a few ifdefs related to cost, ctrl, autodiff
851      untangel a few ALLOW_ECCO_OPTIMIZATION
852    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
853      (theta2, salt2 in ecco_cost_weights)
854    
855    checkpoint56c_post
856    o OBCS as control variables
857      - update ctrl_ad_diff.list, obcs_ad_diff.list
858      - remove balance of obcs controls from default
859      - fix index bug nobcs in ctrl_init
860      - fix dummy fields filen in ctrl_pack
861      - add dummy weights for obcs
862    o lsopt: comment out fort.94 output
863    o optim:
864      - remove unnecessary header files
865      - adjusted namelists
866      - add xerbla.F to Makefile
867    o exf:
868      - multiple modifications of exf_check_range
869      - unit change in exf_init_runoff from [m/year] to [m/s]
870    o mdsio:
871      - i/o-vector change debugLevel from debLevA to debLevB
872    
873    checkpoint56b_post
874    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
875      is called from DO_THE_MODEL_IO
876      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
877      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
878      - clean up PTRACERS_WRITE_TIMEAVE a little
879    o add another verification experiment that tests both the cfc-pkg and
880      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
881      reactive tendencies treated inline with regular timestepping
882    o testreport previously did a lousy job of comparing small numbers, so
883      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
884      implemented in the little c-progam tmp_cmpnum.c which is embedded in
885      testreport.
886    o ptracers_monitor: bug fix for MPI
887    
888    checkpoint56a_post
889    o GCHEM: finish reorganizating the package
890      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
891        (introduces another 3D-array for each passive tracer, but only if
892        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
893        gchemTendency is not needed because the timestep is done separately)
894      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
895      - GCHEM is now---more or less cleanly---separate from PTRACERS
896      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
897        so clear to me how that should be done in a general way.
898    o CFC: improve formatting of output in CFC_ATMOS
899    o PTRACERS:
900      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
901        that ALL experiments with ptracers enable can be checked. This makes
902        GCHEM_MONITOR obsolete.
903      - include a runtime parameter PTRACERS_monitorFreq that defaults to
904        monitorFreq
905      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
906    o add PTRACERS (PTR0[1-5]) to testreport output
907    o exf_check_range:
908      * default changed to .TRUE.
909      * will check values for niter0 if debLevA, every timestep if debLevB
910      * STOP in exf_check_range if 'out of range'
911      * range chosen generous to allow for potential extema
912      TBD: a version with stricter range
913           permitted range would be runtime parameters
914    o GMredi:
915      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
916      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
917      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
918    o GCHEM:
919      - move call to GCHEM_FORCING_SEP, so that it is now called before
920        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
921      - introduced a useGCHEM runtime flag and applied it everywhere.
922      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
923        this flag is now only visible within GCHEM-pkg routines.
924      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
925        be replaced by a 3D array that is computed before thermodynamics; for
926        this, the tracer ID iTracer had to be included into the parameter list
927        of ptracers_forcing
928      - set up forward_step to call gchem_forcing, that will replace
929        gchem_forcing_int in ptracers_forcing
930      - cleaning up
931    o small cleaning of exch2: remove files that are also in eesupp/src
932    
933    checkpoint56
934    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
935    o mnc: cleanup "full" files--fixes out-of-memory problem
936    o ECCO-GODAE
937      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
938      * fully merged and updated from SIO code
939        windstress sign change affects
940        - exf_inscal_[u/v]stress
941        - sign of xx_tau[u/v] adjustments
942        - signs in cost_scat
943      * ctrl_get_gen: avoid update of tau[u/v] for first few days
944      * natl_box_adjoint updated and compressed
945      * 2-level checkpoint switch added
946        (tested in EXP. 1 of natl_box_adjoint)
947      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
948    o SVD
949      * first complete, non-hacked version for SVD calculations
950      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
951        performed via direct access files admtlm_vector.it????
952        (via ctrl_[un]pack)
953      * optimcycle is used for ARPACK iteration counter
954        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
955      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
956        and add linear transforms where necessary
957      * controls are initial/final SST, SSS (can be extended; need to check
958        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
959    o mdsio: filename info to both stderr, stdout
960    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
961      from sign change
962    
963    checkpoint55j_post
964    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
965      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
966    o add consistent build directories and .cvsignore files to verification
967    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
968    o make all subroutines 30 or less characters in length for certain older
969      compilers to work (a thorough search only turns up two routines in
970      pkg/ptracers)
971    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
972      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
973    
974    checkpoint55i_post
975    o change arrays for total vertical diffusivity (2.D if explicit,
976      3.D if implicit) ; each ptracer uses its own background value.
977    o added mnc/NetCDF output capability to ocn_compon_interf
978      - added bits to verification/cpl_aim+ocn so that it can run on
979        ITRDA and other clusters without the mpirun "-wd" option
980    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
981      configuration
982    o give MNC the ability to create additional files rather than
983      exceeding a specified file size limit "MNC_MAX_FILESIZE"
984      - the default is just less than 2GB which is a practical limit
985        on many systems
986    o Compute the non-local term using either KPP vertical diffusivity (=default)
987       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
988    
989    checkpoint55h_post
990    o add verification test "vermix"
991    o remove all the *_ioinc flags and replace with the single global
992      outputTypesInclusive flag
993    o allow to set a vertical profile of vertical diffusivity for T & S
994    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
995    o useMNC moved from data.mnc to data.pkg
996    
997    checkpoint55g_post
998    o Renaming carbon AD experiments to comply with testreport conventions
999    o Updating adjoint of Held-Suarez hs94.1x64x5
1000    o Fixing directives for non-ECCO forward_step, after ECCO directives
1001      have been fixed to avoid recomp. of do_oceanic_phys
1002      Works well for global_ocean.90x40x15,
1003      but recomp. issue remains for carbon
1004    o Updating adjoint output for natl_box_adjoint after
1005      pkg/ecco has been modified (see taga c55d_post)
1006    
1007    checkpoint55f_post
1008    o rename to timeave_init_fixed
1009    
1010    checkpoint55e_post
1011    o some delicate re-shuffle of store directives to avoid one
1012      extra call of do_oceanic_physics
1013      affects ecco_the_main_loop.F, do_oceanic_physics.F
1014      checkpoint_lev1_directives.h
1015    o NB: this may break global_ocean adjoint temporarily,
1016      but it is clear how to fix it. Will do later, need this now.
1017    
1018    checkpoint55d_post
1019    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1020    o ecco_cost_weights is modified to 1x1 runs
1021    o modifs to allow observations to be read in as
1022      single file or yearly files
1023    o enable to read exf forcing fields as either
1024      single file or yearly files (flag useExfYearlyFields)
1025    checkpoint55d_pre
1026    
1027    o switch between 2-level and 3-level checkpointing
1028    o add ability of MNC to write local and "partial" (eg. 2D slices where
1029      the full 3D field is never actually stored) arrays to NetCDF files
1030      with the correct (that is, the complete multi-dimensional) set of
1031      array indicies
1032      - used in mom_vecinv() to write the diagFreq output
1033      - tested (demonstrated) in verification/aim.5l_cs
1034    o further mnc-ification
1035      - add verification/lab_sea to the list with mnc setups
1036      - fix undefined mnc v-names in cd_code
1037      - add kpp to mnc output (both snapshot and timeave)
1038    o non-hydrostatic code
1039      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1040        in calc_gw.F
1041      - defaults to viscAh
1042      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1043        friction or Leith) in non-hydrostatic mode, as long as there is
1044        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1045    o pkg/cost
1046      extend simple cost functions to treat time mean quantities
1047      (T,U,V) via cost_accumulate_state from cost_tile
1048    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1049        be 2 times larger than the minimum size the advection scheme requires.
1050        now get a perfect conservation of salt in advect_cs test-exp (updated)
1051    o GGL90 (Gaspar's TKE mixed layer)
1052      - add horizontal diffusion of TKE, requires exchanges in
1053        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1054        default. In OPA there is no horizontal diffusion of TKE but the
1055        mixing coefficients are computed from a horizontal average of TKE of
1056        6 points or so. I think that diffusion has a little more physical
1057        justification.
1058      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1059        was in vain)
1060      - mask tke-variable in ggl90_init
1061    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1062    o fix biharmonic diffusion on CS-grid.
1063    o more obcs stuff
1064      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1065        for reading boundary values. This routine is called from
1066        obcs_prescribe_read
1067      - updated obcs_check
1068      - changed sponge layer relaxation parameter units for days to seconds
1069      - turned off sponge layer by default
1070      - changed argument list of OBCS_CALC to myTime+deltaTclock
1071      - fixed about 35 bugs in obcs_external_fields_load
1072    
1073    checkpoint55c_post
1074    o obcs stuff
1075      - new runtime flags useOBCSprescribe, useOBCSbalance
1076      - re-arranged obcs_calc
1077      - moved exf_getobcs to obcs_prescibe_read
1078        obcs_prescibe_read is called after ORLANSKI stuff
1079        and independent of it (executable can contain all).
1080      - updated obcs_check
1081      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1082        These may be necessary only if tangential velocities are
1083        prescribed at OB, not sure, needs testing.
1084    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1085      which simplifies the calls and passes the ifc check-bounds test
1086    
1087    checkpoint55b_post
1088    o add a 2D scalar, Z location, exchange_2 routine.
1089    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1090      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1091      affects advect_cs results (for the wrong reason): update output.txt
1092    o use a more standard discretization for biharmonic viscosity ;
1093     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1094      affects results of dome set-up: update output.txt
1095    o fix gad_advection.F (CubedSphere part), back to version 1.23
1096    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1097    
1098    checkpoint55a_post
1099    o merged code to
1100      * prescribe/read time-dependent open boundaries
1101        (works in conjunction with exf, cal)
1102      * sponge layer code for open boundaries
1103      * each boundary N/S/E/W now has its own CPP option
1104        (healthy for the adjoint)
1105    
1106    checkpoint55
1107    o up-to-date adjoint of previous breaks
1108      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1109      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1110      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1111      - carbon: * remove tr1-related adjoint verification
1112                * add ptracer as control variable
1113    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1114      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1115    
1116    checkpoint54f_post
1117    o in verification/carbin/ remove experiment related to
1118      ALLOW_PASSIVE_TRACER (array tr1 etc)
1119      code_ad/ input_ad/ results_ad
1120    
1121    o add two new packages
1122      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1123        + subject to optimization (memory)
1124      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1125        + subject to reordering (many GOTOs in the original code)
1126        + so far opps is called for every (i,j) point, and then operates in
1127          the vertical; one may want to reorder the scheme in order operate in
1128          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1129          fields)
1130    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1131      - all verification tests compile and run with linux_ia32_g77
1132      - defaults are compatible with current input files--nothing
1133        should change if you were not previously using MNC
1134      - MNC output has been added in numerous places (eg. timeave)
1135        but there are still a few writes not yet do-able with MNC
1136        (this is in progress)
1137      - flags now allow for either/or/both use of MDSIO and MNC and
1138        documentation will soon follow
1139      - numerous small formatting cleanups for ProTeX
1140    o add version info (via BUILD_INFO.h) to MNC and stdout
1141    
1142    checkpoint54e_post
1143    o add two new packages
1144      - pp81 (Packanowski and Philander, 1981), Richardson number and
1145        stratification dependent mixing
1146      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1147      - these scheme operate in a similar manner as KPP (without ghat, of
1148        course), however there is only one diffusivity that is used for both
1149        temperature and salinity (and passive tracers)ç
1150    o add offline package
1151    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1152      provided by Stephanie Dutkiewicz
1153    o genmake2: add ability to search for C compilers and cleanup test output
1154      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1155    
1156    checkpoint54d_post
1157    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1158    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1159      leading to additional shift by 5 days each year of integration
1160       (i.e. leading to considerable offset over the years)
1161    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1162    o start with no AB and no initial filtering (staggerTimeStep):
1163      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1164    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1165      (external loading & cpl import/export stay in forward_step.F)
1166    o update coupling interface to work with new staggerTimeStep
1167    o change MDSIO ptracers_pickup.
1168    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1169    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1170    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1171    
1172    checkpoint54c_post
1173    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1174      this affects (truncation error) output.txt of test-exp:
1175       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1176    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1177    o change Qnet to always be the net heat flux, (+upward).
1178      affects (truncation error) output of natl_box exp.: updated
1179    o define the max number of passive tracers in PTRACERS_SIZE.h
1180    o start to test mnc routinely in exp0
1181    o add sea-ice loading (sIceLoad) as a new forcing field.
1182    
1183    checkpoint54b_post
1184    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1185       impressive on Altix and Opteron systems)
1186    o diagnostics can now write NetCDF files through the mnc package
1187    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1188    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1189    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1190      affects (truncation error) output of lab_sea & natl_box exp.: updated
1191    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1192    
1193    checkpoint54a_post
1194    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1195    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1196    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1197    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1198      + internal_wave (shift in writing cg2d_ini_res)
1199    checkpoint54a_pre
1200    
1201    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1202      - modified verification/lab_sea and natl_box_adjoint accordingly
1203    
1204    checkpoint54
1205    checkpoint53g_post
1206    o prepare splitting of thermodynamics: store convect.counter in common block
1207    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1208      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1209    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1210    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1211    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1212    o restore adjointability
1213    
1214    checkpoint53f_post
1215    o modifications that affect AIM experiment results (update output.txt):
1216      - no advection of S at top interface Nr (pkg/generic_advdiff)
1217      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1218    o AIM pkg:
1219      - include stability function into surf.Flux derivative relative to Tsurf
1220      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1221    
1222    checkpoint53e_post
1223    o merged cylindrical coord configuration
1224    o added rotating_tank experiment
1225    checkpoint53e_pre
1226    
1227    checkpoint53d_post
1228    o faulks upgraded: re-generate output.txt that have changed:
1229       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1230    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1231    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1232    o added Sadourny discretization of Coriolis
1233      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1234      - re-enabled use of omega3 (useAbsVorticity)
1235    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1236      vector-invariant equations
1237      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1238    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1239      hopefully without new bugs
1240      - still to do: biharmonic friction for non-hydrostatic w
1241    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1242    o regenerated output for global_ocean_ebm (using -ieee)
1243    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1244      of mom_common/
1245      - simple re-arrangement of instructions within computing loop
1246    checkpoint53d_pre
1247    
1248    checkpoint53c_post
1249    o new version of coupler for AIM+thSIce and Ocean models
1250     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1251     - land: change Evaporation of snow
1252     - aim with thSIce: fix bug in snow-precip.
1253    o changes to calc_gw.F
1254     - bug fix for w^2 term near the bottom boundary
1255     - (hopefully) improve the lateral slip boundary condtions for use with
1256        partial/looped cells
1257      - because the bug fix changes two verification experiments anyway (exp5
1258        and plume on slope), change the lateral boundary condition from half slip
1259        to the value of no_slip_sides
1260    o ebm package wasnt quite up to the parallel task. Fixed that.
1261    o Adjoint of EBM package + verification
1262      * TLM OK
1263      * ADM not sufficient accuracy yet (needs further testing)
1264    
1265    checkpoint53b_post
1266    o Commiting new energy balance model to repository
1267      * package is pkg/ebm
1268      * verif. is verification/global_ocean_ebm
1269      * references are in ebm_driver.F
1270    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1271    C        Global thermohaline circulation. Part I:
1272    C        Sensitivity to atmospheric moisture transport.
1273    C        J. Climate 12(1), 71-82
1274    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1275    C        Global thermohaline circulation. Part II:
1276    C        Sensitivity with interactive transport.
1277    C        J. Climate 12(1), 83-91
1278    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1279    C        Destabilization of the thermohaline circulation
1280    C        by atmospheric eddy transports.
1281    C        J. Climate 7(12), 1870-1882
1282    o Will need long integration testing.
1283    checkpoint53b_pre
1284    
1285    o created pkg/mom_common in preparation for variable viscosity code
1286    o renamed and split ini_mnc_io
1287    o pkg/land: only liquid water can diffuse or run-off
1288    o AIM using land: soil wetness availability account for snow
1289    o added printMapIncludesZeros to EEPARMS namelist
1290    
1291    checkpoint53a_post
1292    o restore TAMC compatiility for exf_constants.h
1293      (no usage of _d in .h)
1294    o Additional storing in KPP in an attempt to fix
1295      TAMC problem with adjoint of KPP code.
1296      (no success...)
1297      Identical code works fine with TAF.
1298    o Fixed verification/natl_box_adjoint experiments.
1299      Initial conditions for Experiments 4 and 5 are now
1300      set to "SEAICE_initialHEFF=0", which is more reasonable,
1301      and hence gives results closer to that of Experiment 2.
1302      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1303    
1304    checkpoint53
1305    o stable checkpoint with up to date adjoint
1306      TLM tests only run for 1st grdchk at the moment. Its unclear if
1307      this is a code problem or a problem with resetting code for g_
1308      variables that is being autogenerated wrong.
1309      Otherwise:
1310       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1311       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1312         are both still in chaos following their security messes.
1313    
1314    checkpoint52n_post
1315    o various build (mostly genmake2) changes including:
1316      - ability to build/run more easily within Cygwin and MacOS X
1317      - more complicated Makefiles with a stronger dependence on Gnu Make
1318    o pkg/seaice modifications
1319      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1320        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1321        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1322      - changed proxy for geostrophic velocity and updated
1323        verification/lab_sea/results/* accordingly
1324      - removed ADI dynamic solver from pkg/seaice
1325      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1326        they caused a segmentation fault under certain circumstances
1327      - removed unused field WATR
1328    o bug fix in exf-package:
1329      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1330         now reflect that.
1331    o small fixes in the cal-package:
1332      - set reference date to first of January for the 'model'-calendar
1333      - failing of cal_CheckDate in cal_FullDate now actually results in a
1334        warning
1335    o small modifications in exf-package to increase flexibility:
1336      - change climtempfreeze from a constant to a runtime parameter that
1337        is specified in data.exf_clim (default = -1.9)
1338      - introduce runtime parameter windstressmax (default = 2.0) that is
1339        specified in data.exf
1340    o fix in pkg/thsice:
1341      - update Evap (Tsf changes) to be consistent with Latent heat flux
1342      - maintain snow precipitation unchanged (even if Tsf >=0).
1343     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1344    
1345    checkpoint52m_post
1346    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1347      this does not change any of the results, because myIter=0 in swfrac always
1348      lead to jwtype=2 (the default anyway), but the call makes little sense
1349      as a default
1350    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1351    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1352      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1353    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1354    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1355    o extending useSingleCpuIO option to work with new exch2 I/O format
1356      - old-style, missing-tile I/O is still accessible by defining CPP
1357        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1358    o monitor package can write to NetCDF files and/or STDOUT
1359    o fix re-definition bug in MNC_GRID_INIT_ALL()
1360    o doc/api_reference added
1361      - a framework for building an API Reference Manual using all
1362        the "protex" comments embedded in the code
1363      - see pkg/generic_advdiff, pkg/mnc for examples
1364    o MNC:
1365      - make myThid the last argument for all subroutines
1366      - new default for the grid files: NO halos
1367      - add useMNC and other run-time flags
1368      - separate per-file-group handling of the unlimited dimension
1369      - early initialization of MNC w/ flags read at the eeboot stage
1370        and lookup tables set in initialize_fixed
1371      - write all MNC output to a freshly-created directory
1372    o thermodynamics sea-ice (thsice) is now tested with testreport.
1373    o test exp. advect_cs: use the standard cs32 grid ; update output.
1374    o Added functionality to grdchk:
1375      pick global i,j,k position (or nearest wet) where to perform check.
1376    
1377    checkpoint52l_post
1378    o new land formulation:
1379      a) use ground enthalpy as prognostic variable to ensure exact
1380         energy conservation.
1381      b) account for water temperature and for latent heat of freezing
1382         in all processes (rain, run-off, ground storage)
1383      c) compute surface and ground temperature implicitly.
1384    o aim_v23 modification for new land model:
1385      a) Treat separately land / ocean / sea-ice surface fluxes
1386         to allow implicit computation of land & sea-ice surface temp.
1387      b) add snow precipitation.
1388    checkpoint52l_pre
1389    
1390    o fix problem (when 1 tile is empty) in min/max monitor.
1391    o fix bug in timeAve (u,vZetatave in common block)
1392    o no restoring terms under ice for pkg/seaice
1393    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1394    o bug fix for pkg/seaice pickups
1395    o change MNC call locations and add coordinate attributes
1396    o mask vorticity at the corner ; affects global_ocean.cs output
1397    o fix ini_curvilinear_grid ; test CS experiments with mpi
1398    o aim.5l_cs: modify sea-ice fraction input file ; update output
1399    o exf: Adding simple range check routine for exf fields after read
1400    
1401    checkpoint52k_post
1402    o removed top-level directory "diags"
1403      - we migrated these functions to pkg/timeave a long time ago
1404    o fixed bug introduced in pkg/monitor
1405    o accuracy ctrlprec = 32 insuffient for gradient checks using
1406      averaged fields (I/O via cost_averages)
1407      -> use ctrl.h in active_file*.F to control I/O precision.
1408    o paramter list of CALL ADTHE_MAIN_LOOP
1409    o added initial do_the_model_io to ecco
1410    o set all ...Freq to zero after cost_final
1411      taveFreq, dumpFreq, pChkptFreq
1412    o MAIN and ECCO differentiability restored
1413    
1414    checkpoint52j_post
1415    o fix nchklev in tamc.h for global_ocean...
1416    o Bringing flow and store directives up-to-date
1417    o Really weird thing!
1418      call do_the_model_io from the_main_loop with parameters
1419      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1420      TAF places a faulty re-call of initialise_varia
1421      after cost_final call which should not be there!
1422    checkpoint52j_pre
1423    
1424    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1425      error messages
1426    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1427    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1428      debug output
1429    o modfied mdsio_writefield.F to handle non-global files under exch2
1430    o update AIM Cubed-Sphere exp (aim.5l_cs):
1431      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1432    o update AIM Equatorial Channel exp:
1433      use standard aim_v23 pkg and change the SST fields to be more realistic.
1434    o globalFile now works with exch2
1435    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1436      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1437    o limit timeave output for hi-res integrations
1438    
1439    checkpoint52i_post
1440    o removed CPP_EEOPTIONS.h from verification/*/code
1441    o updated the tiling for global_ocean_pressure
1442    checkpoint52i_pre
1443    
1444    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1445      the old pkg/aim).
1446    
1447    checkpoint52h_pre
1448    o shortened offending lines in exch2_send_rx?.template
1449    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1450    o genmake2: add build & execute test for NetCDF code
1451    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1452      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1453    o added useSingleCPUIO flag to monitor.F and mon_out.F
1454    o added temporary hack for sea-ice dynamics on the cube:
1455      metric terms are ignored and it is assumed that
1456      there is no sea-ice on cube faces 1, 2, 4, and 5.
1457    
1458    checkpoint52f_post
1459    o added exch2 cube routines to pkg/exch2
1460    o modified hs94.cs-32x32x5 to use it
1461    o added new grid files to hs94.cs-32x32x5
1462    checkpoint52f_pre
1463    
1464    checkpoint52e_post
1465    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1466      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1467    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1468      to work with implicit vertical advection and AB ;
1469    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1470    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1471     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1472    checkpoint52e_pre
1473    
1474    o fix bug in impldiff when Nr=1 or Nr=2.
1475    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1476    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1477    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1478      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1479    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1480    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1481    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1482    
1483    checkpoint52d_post
1484    o re-tiled many expts to allow comparison in multi-processor mode
1485      - updated output accordingly
1486      - changed hs94.128x64x5 to use intial T from file rather than use the
1487        random number generator
1488    o add infrastructure in model routines for fizhi and gridalt packages
1489    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1490    o changes to permit hi-res, cubed-sphere, configuration
1491      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1492      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1493      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1494        of surface winds for the cube
1495      (A verification experiment, based on global_ocean.cs32x15, but with
1496       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1497       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1498       complete with example surface forcing files and matlab scripts to look
1499       at the output and compare it with that of global_ocean.cs32x15.)
1500    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1501       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1502       to conform to the common rule.
1503    o check-in the first version of the coupler + interfaces for multi-components
1504       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1505       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1506       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1507       - ocean and atmos. share the same horizontal grid (no interpolation).
1508       - exchanges between component and coupler is done in forward_step
1509    o new verification experiment, cpl_aim+ocn:
1510       coupled ocean - AIM atmosphere on cs32 grid.
1511    
1512    checkpoint52d_pre
1513    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1514    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1515    
1516    checkpoint52c_post
1517    o Fixing OPTIONS files for use of exf:
1518      - ALLOW_ECCO not needed
1519      - ECCO_CPPOPTIONS.h should not be included from
1520        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1521        as has been the case in the past
1522      - All cal/exf related options are currently set in
1523        single header file. Should remain so until we
1524        agree on a consistent new policy.
1525    o Removed all CPP options for cal package.
1526      cal has no more CPP options.
1527    o modified STOREs in GAD_ADVECTION
1528    o corrected key comp. for passkey
1529    
1530    checkpoint52b_post
1531    o new version: "thsice" of thermodynamic sea-ice pkg:
1532     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1533     - modify fluxes but do not change theta directly;
1534     - light cleaning of bulk_force pkg (still needed with thsice).
1535     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1536       + output_thsice.txt to test thsice & bulk_force pkgs.
1537    o put back grid & coriolis monitor output.
1538    checkpoint52b_pre
1539    
1540    o call "do_the_model_io" at the beginning (=> dump initial state)
1541    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1542    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1543      (need info on NUMBER_OF_PTRACERS)
1544    o missing PTRACERS headers in some routines
1545    o default tamc.h in pkg/autodiff supposed to crash
1546      to ensure proper customization
1547    
1548    checkpoint52a_post
1549    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1550      - moved surfaceTendencyTice from pkg/seaice to main code
1551      - subroutine FREEZE_SURFACE now limits only surface temperature
1552        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1553        => new output.txt for global_ocean.cs32x15 & global_with_exf
1554      - keep the old version of FREEZE for backward compatibility;
1555        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1556      - corresponding modifs for TAF directives
1557    o added surface flux output variables to TIMEAVE_STATVARS
1558    o time-averaged output for pkg/ptracers
1559    o fix problem with ECCO-related divided adjoint
1560      snapshot file was missing some ad-variables,
1561      but no warning issued by TAF
1562    
1563    checkpoint52a_pre
1564    o some bug fixes for #undef REAL4_IS_SLOW
1565    
1566    checkpoint52 = ecco_c52_e35
1567    o after testing adjoints of checkpoint51u_post
1568    
1569    checkpoint51u_post
1570    o this is the post-merge tag of the ecco-branch
1571      (needs another clean checkout and re-testing)
1572    o various natl_box_adjoint configs and results
1573      but no input fields
1574    o obcs adjoint not yet merged!
1575    o adding ECCO global 1x1 and 2x2 degree configs
1576    o updated/extended some store directives for seaice
1577    o pkg/ecco now containes ecco-specific part of cost function
1578    o top level routines the_main_loop, forward_step
1579      supersede those in model/src/
1580      previous input data.cost now in data.ecco
1581      (new namelist ecco_cost_nml)
1582    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1583    
1584    checkpoint51t_post
1585    o this is the pre-merge tag of the ecco-branch
1586    
1587    checkpoint51s_post
1588    o cleanup: removed various obsolete #define-s
1589    o pkg/grdchk
1590      - renamed 'ph-grd 3' to 'grad-res'
1591      - merged from ecco-branch
1592        (remaining bug fixes for obcs gradient checks)
1593      - additional high-precision output for testreport
1594        (grep for 'precision_grdchk_result')
1595    
1596    checkpoint51r_post
1597    o cleaned up or removed CPP_OPTIONS.h files
1598    o updated results for some of the tests to reflect the new
1599      optfiles (-ieee: -O0 instead of -O3)
1600    
1601    checkpoint51q_post
1602    o cd_code:
1603      - moved cd_scheme.F -> cd_code_scheme.F
1604      - separate read_checkpoint from cd_code_ini_vars.F
1605      - separated cd_code part from write_checkpoint
1606      - updated AD_SOURCE, generated .flow
1607      - added CD_CODE_VARS.h to the_main_loop
1608      - Moving cd_code specific store dir.s to pkg/cd_code
1609    o ctrl package totally restructured
1610      - pack/unpack now optional and decoupled from
1611        xx_/adxx_ I/O
1612      - ctrl_pack/unpack cleaned
1613        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1614      - confined inclusion of AD_CONFIG.h to where necessary.
1615    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1616    
1617    checkpoint51p_post
1618    o create initial cd_code package
1619      - WARNING: the initialization of fields within packages
1620        is broken because INI_FIELDS (where READ_CHECKPOINT is
1621        called) is called *before* PACKAGES_INIT_VARIABLES.
1622        This seems to be backwards since
1623        1) its important to initially zero the entire field including
1624           the "halo" region
1625        2) zeroing needs to be done *before* reading pickup info
1626           and the pickup call might or might not happen in any
1627           particular run
1628      - this needs an overhaul for R2
1629    o cleanup verification/*/code/GMREDI_OPTIONS.h
1630    o cleanup testreport
1631    
1632    checkpoint51o_post
1633    o bringing AD-related verif's up to date with genmake2
1634      - carbon/
1635      - global_ocean.90x40x15/
1636      - hs.94.1x64x5/
1637      - (front_relax/ )
1638    o (more) consistent directory structure for AD-related verif.'s
1639    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1640    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1641    o bug fix in find_alpha.F for MDJWF:
1642      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1643        change rho -> rho-rhoConst
1644      - replace call find_rho to find_rhonum
1645    o initialisation of rFlx extended to full array (required by TAF)
1646      and shifted to thermodynamics
1647    o removed PTRACERS.h in ptracers routine
1648    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1649    o Correcting initialisations for fVerU, fVerV.
1650    o helping TAF to recognize dependency on kUp for
1651      fVerU, fVerV
1652    o Replacing delZ by delR in pkg/ctrl/
1653    checkpoint51o_pre
1654    
1655    o undid all of cp51 pending some cleanups and discussion
1656    o added the [#include "AD_CONFIG.h"] statement to all files that need
1657       it for adjoint/tl #defines
1658     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1659     o removed tools/genmake since it no longer works
1660    
1661    checkpoint51n_post
1662    o modifications to make FREEZE flux visible to pkg/kpp
1663      - moved surfaceTendencyTice from pkg/seaice to main code
1664      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1665      - subroutine FREEZE now limits only surface temperature
1666        (this means new output.txt for global_ocean.90x40x15,
1667         global_ocean.cs32x15, and global_with_exf)
1668    o added surface flux output variables to TIMEAVE_STATVARS
1669    
1670    checkpoint51n_pre
1671    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1672    o added [#include "AD_CONFIG.h"] to all files that use the following
1673      defines:
1674      - ALLOW_ADJOINT_RUN
1675      - ALLOW_TANGENTLINEAR_RUN
1676      - ALLOW_ECCO_OPTIMIZATION
1677    
1678    checkpoint51m_post
1679    o incorporating changes to get TAMC/TAF working in genmake2
1680      - added new TAMC/TAF targets to the Makefile
1681      - various cleanups related to package handling
1682      - these changes should have no impact on the forward model
1683    
1684    checkpoint51l_post
1685    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1686     - faster algorithm for cal_addtime.F
1687     - higher precision arithmetic, where needed
1688     - pkg/exf *startdate variables changed from calendar date to
1689       model integration time
1690    
1691    checkpoint51l_pre
1692    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1693    o enable to apply restoring on S & T only in a latitude band.
1694    o update output (external_forcing_surf modif. change truncation errors)
1695       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1696    
1697    checkpoint51k_post
1698    o change default to: useNHMTerms=.FALSE.
1699     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1700       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1701     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1702        exp1, ideal_2D_oce
1703     - change data file of oceanic exp (leave the results unchanged for now)
1704       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1705    o set gravitySign automatically according to the vertical coordinate used
1706      (and change sign: back to "logical" value: +1 when R increases downward)
1707    o added an include barrier to the default CPP_OPTIONS.h and
1708      removed the #include "PACKAGES_CONFIG.h" from it
1709    o fix a bug in mom_fluxform (from chk51j_post)
1710    
1711    checkpoint51j_post
1712    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1713    o adjusted some flow directives (dynamics, thermodynamics)
1714    o added cubed-sphere case to test cost function
1715    o heckpoint_lev?_directives.h now include
1716      pkg-specific directives, whenever those are enabled.
1717    o Moving pkg-specific flow directives to corresponding pkg
1718      Moving pkg-specific differentiation list to corresponding pkg
1719      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1720      ---> conventions are
1721           - pkg_ad.flow
1722           - pkg_ad_diff.list
1723           - pkg_ad_check_lev?_dir.h
1724    
1725    checkpoint51i_post
1726    o merge of the branch-genmake2
1727      - knowingly breaks the older genmake
1728      - automatic generation of all ALLOW_${PKG_NAME} defines
1729      - new testreport supersedes older testscript
1730    o large number of package inclusion and header cleanups
1731    checkpoint51i_pre
1732    
1733    o new output for adjoin of global ocean vector invariant
1734    o fix for checkpoint of thermodynamic seaice and bulk_force
1735    o Steph gchem various cleanups
1736    
1737    checkpoint 51h_pre
1738    o fixed some single quotes
1739    o modify gchem pkg to be more versatile
1740    o modifications to clean up dic pkg
1741    o add pkg/cfc
1742    
1743    checkpoint51g_post
1744    o provide links for ARPACK and ADM*TLM
1745    o start removing verification/vero/
1746    o update AD-related stuff
1747      (in particular some IF-statements in model/src/ routines)
1748    o adding to verification/global_ocean.90x40x15/ adjoint of
1749      vector invariant setup
1750    
1751    checkpoint51f_post
1752    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1753    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1754      of tracer Green's fucntions for ocean inversion project.
1755    
1756    checkpoint51f_pre
1757    o Added on-the-fly spatial interpolation capability
1758        "USE_EXF_INTERPOLATION" to pkg/exf.
1759      - This is a temporary Cartesian-grid hack until
1760        the super-duper ESMF coupler becomes available.
1761      - See verification/global_with_exf/README for usage example.
1762      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1763        flags and modified pkg/seaice accordingly.
1764    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1765        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1766        non-local transport term.
1767    
1768    checkpoint51e_post
1769    o pkg/mom_vecinv:
1770      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1771      - add time-ave diagnostic of vorticity advection.
1772    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1773    o atmospheric geopotential: - include water vapor effect;
1774                                - use p^kappa in p* scaling.
1775    o land pkg: read initial state from files.
1776    o AIM : add stratospheric drag in the upper level
1777    
1778    checkpoint51d_post
1779    o change function ILNBLNK (=> last non-blank char.) to return zero
1780      (instead of the string length) when the string. char is empty
1781    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1782    o modif's to restore TAMC compatibility
1783      - avoid "_d" constructs in PARAMETER declarations
1784      - avoid interrupting lines by comment lines
1785    o Use cluster local disks for purely local I/O
1786      vs. globally visible disks needed for ctrl stuff
1787      (merged from ecco-branch)
1788      - new active_file_loc... and mdsio_..._loc routines
1789      - affected packages: autodiff, ctrl, grdchk, mdsio
1790    
1791    checkpoint51c_post
1792    o introducing integer flag debugLevel
1793      - debLevZero: suppress all output
1794      - debLevA: standard
1795      - debLevB: equivalent to current debugMode=.TRUE.
1796    o introducing pathname variable mdsioLocalDir for mdsio
1797      that can be specified at runtime
1798      (relevant for cluster I/O to local disk)
1799    `
1800    >>>checkpoint51b_post
1801    adjoint of ptracers
1802    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1803    o extended state in checkpoint_lev?, etc.
1804    o alternative ctrl/cost with tr1 or ptracer
1805    o new comlev1_bibj_ptracers
1806    o new ptracers.flow
1807    o made ptracers_forcing same as external_forcing_s
1808    o added verification for adjoint with ptracers
1809      - adm. grdchk fail so far
1810      - tlm. grdchk OK
1811      - checked tapelev/comlev recomputations: OK
1812    <<<checkpoint51b_pre
1813    
1814    checkpoint51a_post
1815    o added code for biogeochemistry package
1816      - new pkgs: dic, gchem
1817      - new subroutine in ptracers
1818    o modify code for biogeo packages
1819      - in model/src and pkg/ptracers
1820    
1821    checkpoint51
1822    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1823      - autodiff, ctrl, exf, grdchk, seaice
1824      kept separate packages
1825      - cost, ecco, obcs
1826    o updating verification/internal_wave, verification/lab_sea
1827      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1828    
1829    checkpoint50i_post
1830    o Preparing next differentiable checkpoint and sync
1831      of MAIN vs. ecco-branch
1832      - 1st step: this one is differentiable
1833      - 2nd step: next(! not this) checkpoint will have updated packages
1834                  from ecco-branch)
1835    
1836    checkpoint50h_post
1837    o new package "land": provide surface BC for AIM.
1838    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1839    o AIM: use true log-P extrapolation for near surface temp (= as in
1840        F.Molteni paper) ; update aim.5l_cs output.
1841    o New variable in PARM03 for more flexible pickups
1842    o somewhat cleaned package initialisation sequence for
1843      ctrl/ cost/ ecco/ in packages_... routines
1844    
1845    checkpoint50g_post
1846    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1847      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1848      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1849        made the default because of faster convergence than ADI
1850    
1851    checkpoint50f_post
1852    o exf totally restructured
1853      - replaced all exf_set_ routines by one generic exf_set_gen.F
1854        and made sure it's still differentiable
1855      - split exf_getffields.F into new exf_bulkformulae.F
1856      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1857      - updated adjoint/makefile and relevant verif. accordingly
1858    
1859    checkpoint50f_pre
1860     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1861          + change Evap over land. (update aim.5l_cs output)
1862     o added missing .cvsignores and made uniform across expts
1863     o changed configuration of tidal_basin_2d expt
1864     o added pkg/debug functions for tracing code in fatal crashes
1865     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1866     o new fn in pkg/monitor to stop model if solution grows too big
1867     o removed lots of single quotes from comments
1868    
1869    checkpoint50e_post
1870    o make KPP work with PTRACERS
1871     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1872       nearly a copy of kpp_transport_s
1873     - there is no analogue to SurfaceTendencyS, so I have to use
1874       gPtr(of the surface layer) instead
1875    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1876    checkpoint50e_pre
1877    
1878    checkpoint50d_post
1879    o change kpp output from multiple-record state files to single-record state
1880      files analogous to write_state.F
1881    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1882      analogous to the cg2d-related output.
1883    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1884      so that writing to internal file fn (with length 512) fails.
1885    checkpoint50d_pre
1886    
1887    checkpoint50c_post
1888    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1889    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1890    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1891    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1892    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1893    
1894    checkpoint50c_pre
1895    Merging from release1_p13:
1896    o bug fix for pkg/seaice dynamic solver
1897    o Added SEAICE_initialHEFF to pkg/seaice
1898    
1899    checkpoint50b_post
1900    o store u*,v* in gU,V instead of in guNm1,gvNm1
1901    o in order to put the momForcing out of the Adams-Bashforth:
1902      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1903      to timestep.F
1904    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1905    o re-generate output for highly sensitive test-exp:
1906       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1907    
1908    checkpoint50b_pre
1909    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1910    o corrected CPP option mismatch in exf_Bulk... functions for case
1911      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1912    
1913    checkpoint50a_post
1914    o Bug fix for merging between c50 and KPP.
1915      ikey was passed from thermodynamics to kpp_calc via
1916      common block rather than being recomputed in kpp_calc,
1917      in contradiction with new key itdkey.
1918      New key ikppkey created, and tamc.h headers updated.
1919    
1920    checkpoint50
1921    - 2nd step of merge with ecco-branch:
1922      merge changes in ecco-branch back into main trunk
1923    - bug fix in find_alpha
1924    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1925    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1926    - merged some sliced AD support routines
1927    
1928    checkpoint49
1929    merged from ecco-branch:
1930    o exf:
1931      - Enable initialisation of forcing fields to constant
1932        (runtime) values.
1933      - in exf_getffields.F
1934        Reduce i-/j-loop to interior domain, discarding overlaps.
1935        That also fixes wrong TAF-key computations for key_1, key_2
1936        with bulf formulae.
1937      - exf_init.F modify #ifdef for exf_init_evap
1938      - exf_getffieldrec.F, ctrl_getrec.F
1939        The following INT-usages are not safe:
1940          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1941          fldcount = int(fldsecs/fldperiod) + 1
1942        and were modified.
1943    o autodiff: checkpoint_lev...
1944      - updated storing for bulk formulae (some arrays were missing)
1945      - added state for seaice package
1946      - synchronized with main branch
1947    o DIVA:
1948      Modif.s in
1949      - the_main_loop.F
1950      - the_model_main.F
1951      and added cost_final_restore.F cost_final_store.F
1952      o With these changes, it is possible to fully separate
1953        the first forward run to compute the cost function (mdthe_main_loop)
1954        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1955        into separate model executions.
1956        This enables better tuning of DIVA to given queue sizes.
1957      o Loss of cost function value in consecutive DIVA runs is
1958        fixed by storing to 'costfinal' file.
1959      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1960        beginning/end of adjoint integration is accounted for.
1961      The current changes apply to TAF-1.4.26.
1962      TAF has one remaining bug, requiring one manual change
1963      (see MITgcm manual).
1964    o cal: synchronized between MAIN and ecco-branch
1965    
1966    checkpoint48i_post
1967    o Changes to restore differentiability of code w.r.t. previous tag
1968      (mostly adding new routines to make list and replacing
1969      pressure by totPhiHyd).
1970    o Updated and merged grdchk package
1971      - has both ADM and TLM checks
1972      - works for single- and multi-proc.
1973      - output cleaned
1974      - worked successfully for parallel DIVA
1975    o genmake:
1976      - Adding -platform=SP4
1977      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1978    o Modif. for DIVA:
1979      ctrl_unpack should not be called in intermediate DIVA interval.
1980      (similar thing would apply for active files such as
1981      tbar, sbar, psbar, which should not be reinitialised;
1982      only relevant for ecco-branch)
1983    
1984    checkpoint48h_post
1985    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1986    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1987    o Added SEAICE_initialHEFF to pkg/seaice
1988    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1989    
1990    checkpoint48g_post
1991    --- EOS:
1992    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1993      store total Potential in totPhyHyd for diagnostics & EOS.
1994    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1995    --- Pressure/geopotential gradient:
1996    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1997    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1998      ( changes results of global_ocean_pressure )
1999    o NLFS + z-coord.: add eta*Rho' contribution.
2000    o accurate phiHyd when using interface-W at the middle between 2 centers
2001     ( changes results of ideal_2D_oce )
2002    o includes r* 2nd term in potential gradient.
2003    
2004    checkpoint48f_post
2005    Merging from release1_p12:
2006    o Modifications for using pkg/exf with pkg/seaice
2007      - improved description of the various forcing configurations
2008      - added basic radiation bulk formulae to pkg/exf
2009      - units/sign fix for evap computation in exf_getffields.F
2010      - updated verification/global_with_exf/results/output.txt
2011    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2012      (SBO) core products, including oceanic mass, center-of-mass,
2013      angular, and bottom pressure (see pkg/sbo/README.sbo).
2014    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2015      to avoid negative values in shallow regions.
2016      - updated verification/natl_box/results/output.txt
2017      - updated verification/lab_sea/results/output.txt
2018    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2019    o Added useSingleCpuIO option (see PARAMS.h).
2020    o Updated useSingleCpuIO option in mdsio_writefield.F to
2021      work with multi-field files, e.g., for single-file pickup.
2022    o pkg/seaice:
2023      - bug fix in growth.F: QNET for no shortwave case
2024      - added HeffFile for specifying initial sea-ice thickness
2025      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2026    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2027      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2028    o pkg/seaice:
2029      - adjoint-friendly modifications
2030      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2031    
2032    checkpoint48e_post
2033    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2034    o dynamics: change definition of computational domain & adapt mom_fluxform
2035      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2036    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2037        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2038        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2039        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2040        inverted_barometer solid-body.cs-32x32x1
2041      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2042    
2043    checkpoint48d_post
2044    o in preparation for r*:
2045     a) use pre-computed gradient of hydrostatic potential:
2046        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2047     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2048        => affects results of glob_oce_pressure (different truncation error)  
2049      update output.txt of ideal_2D_oce & global_ocean_pressure
2050    
2051    checkpoint48d_pre
2052    o in preparation for r*:
2053      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2054      pass the 2 comp. of the grad. as arguments to momentum S/R.
2055      but for the moment, only used if it does not change the results.
2056    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2057    
2058    checkpoint48c_post
2059    Modifications in treatment of initial flux forcing controls
2060    to avoid extra storing of flux fields.
2061    
2062    checkpoint48c_pre
2063    o Added tidal_basin_2d experiment (currently 1D!)
2064    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2065    
2066    checkpoint48b_post
2067    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2068     (modification to pressure gradient not yet implemented)
2069    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2070      (for U & V) that are used for vertical advection of momentum.
2071    
2072    checkpoint48a_post
2073    o In preparation for r*, use temp. array to compute vertical transport
2074       in flux-form momentum pkg. => change results of few test-exp.
2075      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2076                        lab_sea, natl_box & plume_on_slope
2077    
2078    checkpoint48
2079    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2080    
2081    checkpoint47j_post
2082    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2083    o moved adexch from forward_step to addummy_in_stepping
2084    o added exch in ctrl_map_...
2085    o aveFreq.=0. at end of cost_final to avoid overwrite in
2086      reverse checkpointing loop
2087    o Yet more changes in gmredi:
2088      * adgmredi_calc_tensor
2089        avoiding all recomputation of gmredi_slope_limit
2090      * adgmredi_x/y/rtransport
2091        added flag for excessive storing to avoid recomp. of
2092        u/v/rtans, dTdx/y/z
2093        -> this is not really necessary and very memory-consuming
2094      * adgmredi_slope_psi:
2095        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2096      * gmredi_slope_limit
2097        re-activated full calculation of taperfct for case 'ac02'
2098    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2099    
2100    checkpoint47i_post
2101    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2102    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2103      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2104    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2105    o gmredi: fix few bugs.
2106    
2107    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2108    This will be a good checkpoint to plug into the ecco-branch.
2109    o few modif.'s to get latest version adjointed
2110      (mainly kick out code in ini_linear_phisurf)
2111    o modif's to run adjoint with exactConserv
2112    o case GM_BOLUS_ADVEC should be cleaned
2113      S/R gmredi_slope_psi should be cleaned
2114    o verification/carbon now has exactConserv=.TRUE.
2115    
2116    checkpoint47g_post
2117    o time-average AIM output: becomes independent from statvars time-average
2118      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2119    o After TAF bug fix:
2120      Tested adjoint of gmredi package.
2121      Tests were done with checkpoint47 rather than with latest
2122      checkpoint47f_post since the latter is broken for the adjoint
2123      verification/carbon/ contains both ADM and TLM gradient checks.
2124    Here they are, before they get changed/lost/stolen.
2125    Mostly modif.'s to fix numerical sensitivities.
2126    Gradient checks OK for
2127    - GM_taper_scheme:
2128      * clipping
2129      * ac02
2130      * linear
2131      * glw91
2132      * dm95
2133      * ldd97
2134    - GMREDI_OPTIONS:
2135      * GM_VISBECK_VARIABLE_K
2136      * GM_NON_UNITY_DIAGONAL
2137      * GM_EXTRA_DIAGONAL
2138      * GM_BOLUS_ADVEC
2139    in conjunction with data.gmredi parameters to be checked in
2140    in a few minutes under verification/carbon/code/
2141    
2142    checkpoint47f_post
2143    Merging from release1_p10:
2144    o modifications for using pkg/exf with pkg/seaice
2145      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2146        and SEAICE_EXTERNAL_FLUXES
2147      - pkg/exf CPP options EXF_READ_EVAP and
2148        EXF_NO_BULK_COMPUTATIONS
2149      - usage examples are Experiments 8 and 9 in
2150        verification/lab_sea/README
2151      - verification/lab_sea default experiment now uses
2152        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2153    
2154    checkpoint47e_post
2155    o created a tag prior to creating a branch
2156    
2157    checkpoint47d_post
2158    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2159      at the bottom boundary had an erroneous half slip boundary condition
2160    o added bottom drag and no slip boundary condition capabilities to
2161      oceanic pressure coordinates code
2162    o added new verification experiment global_ocean_pressure, this experiment is
2163      also described in the tutorial section of the manual
2164    checkpoint47d_pre
2165    
2166    checkpoint47c_post
2167    o Added a verification experiment for a global cubed-sphere ocean run
2168      -  verification/global_ocean.cubed32x32x30
2169      -  uses pkg/therm_seaice and pkg/bulk_forcing
2170    
2171    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2172    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2173      when using P-coordinate; only implemented for atmospheric config.
2174    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2175      NOTES: requires option NONLIN_FRSURF to be "#define".
2176    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2177    
2178    checkpoint47b_post
2179    Merging from release1_p9:
2180    o pkg/seaice
2181      - removed GOTO's and added taf directives
2182      - double precision constants to reduce the g77 (Linux)
2183        to F77 (SGI) differences reported in release1_p8
2184    o tools/genmake
2185      - added SGI options
2186    o verification/testscript
2187      - updated to that of checkpoint47a_post
2188    o verification/global_ocean.90x40x15/input/eedata
2189      - modified for SGI f77 compatibility
2190    o verification/lab_sea
2191      - added description of sea-ice model
2192      - added missing matlab routines
2193      - added test of thermodynamics parallelization
2194    
2195    checkpoint47a_post
2196    o new pkg: aim_v23
2197     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2198       for now, keep the same surface forcing as before.
2199     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2200     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2201     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2202    o add diagnostic of surface correction term in monitor output
2203    
2204    o bulk_force and therm_seaice
2205    - Two packages:  bulk_force (Bulk forcing)
2206      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2207    - Earlier integration from Stephaine Dutkiewicz
2208      and Patrick Heimbach.
2209    - Two ifdef statements for compile time,
2210       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2211    
2212    checkpoint47
2213    differentiable version of checkpoint46n_post
2214    o bug fix in quasihydrostaticterms
2215    o * "clean" adjoint code (in terms of extensive recomputations)
2216        can now be obtained for all GMREDI options (i.e. for
2217        - GM_VISBECK_VARIABLE_K
2218        - GM_NON_UNITY_DIAGONAL
2219        - GM_EXTRA_DIAGONAL
2220        - GM_BOLUS_ADVEC )
2221      * However, wrong gradient check problem remains unsolved.
2222      * New CPP options have been introduced for different
2223        tapering schemes
2224    o external_fields_load now part of differentiation list
2225    o pressure needs multiple storing;
2226      would be nice to have store_pressure at beginning or
2227      end of forward_step, e.g. by having phiHyd global (5-dim.)
2228      (NB: pressure is needed for certain cases in find_rho,
2229      which is also invoked through convective_adjustment).
2230    o recomputations in find_rho for cases
2231     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2232    o #define ATMOSPHERIC_LOADING should be differentiable
2233    o ini_forcing shifted to begining of initialise_varia
2234    o Incorporating QNVS line search routines into MITgcm
2235      (this is separate code, and therefore not under pkg)
2236      lsopt/, optim/
2237    o Updated verification/carbon/
2238      - #define GM_VISBECK_VARIABLE_K
2239      - GM_taper_scheme    = 'ldd97'    
2240    
2241    checkpoint46n_post
2242    Merging from release1_p8:
2243    o verification/natl_box:
2244      updating new external_fields_load routine
2245    o New package: pkg/seaice
2246      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2247      The sea-ice code is based on Hibler (1979-1980).
2248      Two sea-ice dynamic solvers, ADI and LSR, are included.
2249      In addition to computing prognostic sea-ice variables and diagnosing
2250      the forcing/external data fields that drive the ocean model,
2251      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2252      The implied surface heat flux is then stored in variable
2253      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2254      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2255      non-local transport term.  Because this call precedes model
2256      thermodynamics, temperature under sea-ice may not be "exactly" at
2257      the freezing point by the time theta is dumped or time-averaged.
2258      N.B.: fairly large differences in accuracy occur across
2259            different platforms/compilers; comparison between
2260            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2261            generated output gives:
2262       T           S           U           V
2263      C D M    c        m  s        m  s        m  s        m  s
2264      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2265      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2266      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2267    
2268      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2269    o GAD:
2270      - generated new common blocks to account for call of
2271        same gad routines with differing traceridentities
2272        (needed to modify tracerIdentity indices in GAD.h)
2273      - generated separate common blocks for case useCubedSphereExchange
2274        (Department of Futurology)
2275      - parameter lists to gmredi_?transport: added tracerIdentity
2276      - added new key indices to tamc.h
2277    o external_fields_load:
2278      - added this routine to TAF list
2279      - needed to make some common blocks global and additional storing
2280        along the same lines as exf package (checkpoint_lev?_directives.h)
2281    o exf:
2282      updated external forcing package
2283      - bug fixes carried over from ecco-branch
2284        (missing OBCS_OPTIONS.h in two routines)
2285      - enable easy to use "no forcing".
2286      - added exf I/O for atmospheric loading
2287      - added exf I/O for runoff data
2288      - transfered scaling between exf <-> MITgcm to exf namelist
2289    o Adding new verification experiment global_with_exf.
2290      This verification experiment is almost identical to the
2291      global_ocean.90x40x15 experiment, except that it uses
2292      the exf (and cal) package instead of the
2293      external_fields_load routine (cf README file).
2294    
2295    checkpoint46m_post
2296    o modified testscript to return -- when there are no lines of "%MON" output
2297    o added new flag "quasiHydrostatic" for QH mode
2298      and new routine quasihydrostaticterms()
2299    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2300      New routine: mom_u_coriolis_nh()
2301    o fixed sign of non-hydrostatic metric terms in u and v equations.
2302      Depend on correct sign of gravitySign.
2303    o added work.pc* to .cvsignore in aim directories using ifc
2304    o introduced flag for controllin non-hydrostatic metric terms
2305    o removed gravitySign from PARM04
2306    o switched to g77/ifc from pgf77 in aim experiments
2307    
2308    checkpoint46l_post
2309    o made convective adjustment work with pressure coordinates:
2310     - changed the direction of k-loop in convective_adjustment.F for the
2311       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2312     - adjusted the reference pressure k-index in convective_adjustment.F
2313     - adjusted the convection condition in convect.F (in analogy to
2314       calc_ivdc.F)
2315     - convective_adjustment no longer computes anything on the halos
2316     - removed the warnings about negative salinity from find_rho.F and
2317       find_alpha.F; instead the new routine look_for_neg_salinity, called
2318       at the beginning of find_rho, find_alpha, and find_beta, does a
2319       check of the entire slice, if CPP-option
2320       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2321    checkpoint46l_pre
2322    
2323    checkpoint46k_post
2324    o fixed the verification/global_ocean.90x40x15 experiment:
2325     - new bathymetry (the world according to A., JMC, and M.)
2326     - new initial fields and forcing fields (*.bin files)
2327     - new POLY3.COEFFS (for the next release one should switch to a full
2328       equation of state: JMD95P or MDJWF)
2329     - fixed several errors and redundancies in the data file
2330     - experiment uses looped cells
2331     - added matlab directory with diagnostic scripts for plotting of output
2332    
2333    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2334     - read AIM physics parameters from a file (data.aimphys)
2335     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2336    
2337    checkpoint46j_post
2338    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2339    o move wVel computation at the end of the time step, in S/R integr_continuity
2340    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2341    o update timeave pkg for wVel diagnostic.
2342    checkpoint46j_pre
2343    
2344    checkpoint46i_post
2345    o Clean up AIM package (and keep the results unchanged):
2346      include CPP_OPTION and use IMPLICT NONE in all routines ;
2347      declare all the variables _RL ; use _d 0 for all numerical constants.
2348      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2349    
2350    checkpoint46h_post
2351    o cleaned up the use of rhoNil and rhoConst.
2352      - rhoNil should only appear in the LINEAR equation of state, everywhere
2353        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2354        and the dynamical equations are all divided by rhoConst
2355    o introduced new parameter rhoConstFresh, a reference density of fresh
2356      water, to remove the fresh water flux's dependence on rhoNil. The default
2357      value is 999.8 kg/m^3
2358    o cleanup up external_forcing.F and external_forcing_surf.F
2359      - can now be used by both OCEANIC and OCEANICP
2360    checkpoint46h_pre
2361    
2362     Added code to convert surface volume flux (fresh water) into
2363     a mass flux when using P coordinates in the ocean (OCEANICP).
2364     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2365    
2366    checkpoint46g_post
2367    o Include a new diagnostic variable phiHydLow for the ocean model
2368      - in z-coordinates, it is the bottom pressure anomaly
2369      - in p-coordinates, it is the sea surface elevation
2370      - in both cases, these variable have global drift, reflecting the mass
2371        drift in z-coordinates and the volume drift in p-coordinates
2372      - included time averaging for phiHydLow, be aware of the drift!
2373    o depth-dependent computation of Bo_surf for pressure coordinates
2374      in the ocean (buoyancyRelation='OCEANICP')
2375      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2376        Theta, Salinity, and Pressure in the parameter list. This routine is
2377        presently contained in find_rho.F. This routine does not give the
2378        correct density for 'POLY3', which would be a z-dependent reference
2379        density.
2380    o cleaned up find_rho
2381      - removed obsolete 'eqn' from the parameter list.
2382    o added two new verification experiments: gop and goz
2383      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2384    checkpoint46g_pre
2385    
2386    checkpoint46f_post
2387    o Enable tangent linear (forward mode) gradient checks:
2388      - extended active file handling to g_... files
2389      - added TANGENT_SIMULATION to theSimulationMode
2390      - extended grdchk package accordingly
2391    o added tangent linear setup in verification/carbon/code_ftl
2392    o added adjoint setup in verification/front_relax/code_ad
2393    
2394    checkpoint46e_post
2395    o Added new equation of state -> MDJWF
2396      - EOS of McDougall et al., 2002, JAOT, submitted
2397      - caveat: the equation of state is only valid for a smaller (more
2398        realistic?) range of values than JMD95P/Z and UNESCO
2399      - added masks to the calculation of pressure in store_pressure
2400      - added more check values for density in check_eos (ini_eos.F), some of
2401        the old check values are out of the range of the MDJWF-eos, so don't
2402        expect perfect matches for those
2403    checkpoint46e_pre
2404    
2405    checkpoint46d_post
2406    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2407      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2408      case of pressure coordinates. eosType='JMD95Z' in
2409      combination with buoyancyRelation='OCEANICP' now causes an error.
2410    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2411      in find_alpha/beta.
2412    checkpoint46d_pre
2413    
2414    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2415      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2416    
2417    checkpoint46c_post
2418    o Changes necessary for ocean in p-coordinates
2419     -  Added new buoyancy relation = 'OCEANICP'
2420     -  Added new parameters = gravitySign (this used to be contained inside
2421        the factor dRdZ which I added when we first switched to R coordinates).
2422     X GM/Redi is not compatible (yet)
2423     X bottom drag and no-slip need to be debugged.
2424    checkpoint46c_pre
2425    
2426    checkpoint46b_post
2427    o Added new equation of state -> JMD95Z and JMD95P
2428      - EOS of Jackett and McDougall, 1995, JAOT
2429      - moved all EOS parameters into EOS.h
2430      - new routines ini_eos.F, store_pressure.F
2431    o Added UNESCO EOS, but not recommended because it requires
2432      in-situ temperature (see JMD95)
2433    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2434      unesco.f to be used with POLY3
2435    checkpoint46b_pre
2436    
2437    checkpoint46a_post
2438    o Added (atmospheric) pressure loading
2439      - new field in FFIELDS.h, etc...
2440      - new cpp flag ATMOSPHERIC_LOADING
2441    o Changed hFacC to _hFacC in calc_phi_hyd.F
2442    o Added SHORTWAVE_HEATING to some files for consistency
2443    checkpoint46a_pre
2444    
2445    checkpoint46
2446    further merges from release1_p5
2447    o new ctrl package
2448      - adopted from ECCO environment to enable optimization
2449      - added Eliassen Palm fluxes to controls
2450    o added Eliassen Palm flux controls to gradient check package
2451    o cost package
2452      - Compatible with new ctrl package
2453      - added Eliassen Palm cost hooks
2454      - modif's of existing cost functions
2455    o Adjoint-related bug fixes in kpp:
2456      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2457      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2458    o autodiff package
2459      - flow directives:
2460        + new for S/R do_the_model_io
2461        + enhanced for S/R checkpoint
2462        + new gmredi.flow
2463      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2464        disable adcommon.h/g_common.h by default.
2465      - fixed problem for adjoint of global_max
2466    o modified verification/carbon/
2467    o New setup for adjoint of global_ocean
2468    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2469    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2470    o incorporated hooks for sponge layer code (external_forcing.F)
2471    
2472    checkpoint45d_post
2473    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2474    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2475      (affects plume_on_slope "cg2d" output)
2476    o add new parameter deltaTfreesurf for free-surface time stepping
2477    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2478    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2479    o change phiMin in exp1 (to agree with documentation)
2480    o add new flags:
2481     - T,S forcing inside/outside Adams-Bashforth
2482     - turn off temp,salt advection and/or forcing
2483     - for each tracer, define internal flag for multiDimAdvection & A-B
2484    o monitor: change definition of KE to check conservation of Energy
2485    
2486    checkpoint45c_post
2487    o Removed f90 comments ("!")
2488    o Modified initialisations to enable exf package for MITgcm
2489      (without invoking ECCO_PACKAGE).
2490    o modifications to gradient check package (Martin Losch)
2491      - enable centered differences
2492      - modified format of standard output
2493    
2494    checkpoint45b_post
2495    o cleaned exchange calls in cg2d
2496    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2497    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2498      to configure barotropic setup (Martin Losch)
2499    o moved some initialisations within bi,bj loop in dynamics
2500      (TAF flow dependency)
2501    o in initialise_varia, moved call packages_init_variables
2502      before convective_adjustment_init
2503      (corresponding adjustment of TAF tape initialisation).
2504    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2505    
2506    checkpoint45a_post
2507    o compute Rho over the whole domain (extend iMin,jMin indices)
2508    o specific exchange for X-slice domain (case Ny=1)
2509    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2510    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2511    
2512    checkpoint44h_post = checkpoint45
2513    o Fix to restore differentiability:
2514      place at which packages_init_variables is called in
2515      initialise_varia is crucial for reverse control flow.
2516    o modifications in GMRedi to enable stable adjoint
2517      (corresponding modif's in thermodynamics, dynamics)
2518    o added missing hook for sponge layer code in external_forcing
2519    o modified test cost functions
2520    o storing in gad_advection (plus removal of write(0,*)!
2521    o missing headers TR1.h added in convective_adjustment routines
2522    o errorMessageUnit set non-equal zero in eeboot
2523      (conflict on some platforms, e.g. IBM SP3)
2524    o modified carbon verif.
2525    
2526    checkpoint44h_pre
2527    o vertical grid option: allow to put the Interface at the middle between
2528      2 cell-centers ; replace delZ in pkg/kpp by drF.
2529    o GM Advective form: Tracers are advected using the residual transport (=
2530      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2531    
2532    checkpoint44g_post
2533    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2534      results) ; ifdef missing in thermodynamics.F
2535    
2536    checkpoint44f_pre,checkpoint44f_post
2537    o added PTRACERS package
2538      This allows an arbitrary number of passive tracers to be integrated
2539      forward simultaneously with the dynamicaly model.
2540      + Implemented so far:
2541        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2542        - I/O and checkpointing
2543        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2544      + Not implemented so far:
2545        - KPP
2546        - OBCS
2547      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2548        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2549        line in data.pkg.
2550      + This package is disabled by default since it increases storage.
2551    
2552    
2553    o testscript: added -cleanup option
2554    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2555                 b) enable to filter 2D fields.
2556    
2557  checkpoint44e_pre,post  checkpoint44e_pre,post
2558  o re-wrote convective adjustment to use pre-calculated weights  o re-wrote convective adjustment to use pre-calculated weights
# Line 23  o removed variables in dynamics Line 2572  o removed variables in dynamics
2572  !!! I forgot to create tag chkpt44d_pre !!!  !!! I forgot to create tag chkpt44d_pre !!!
2573  !!! But chkpt44d_pre = chkpt44c_post    !!!  !!! But chkpt44d_pre = chkpt44c_post    !!!
2574    
2575    o real fresh water flux implemented with non-linear free-surface.
2576    
2577  chkpt44c_pre,post  chkpt44c_pre,post
2578  o few fix (mask in shap_s2, EmPmR in external_field_load,  o few fix (mask in shap_s2, EmPmR in external_field_load,
2579    USE_NATURAL_BCS in solve_for_P);    USE_NATURAL_BCS in solve_for_P);

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