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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.748 by gforget, Thu Nov 23 00:06:21 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 profiles: fix for multithreaded case
8    
9    o diagnostics: rename few diags:
10      s/'PRESSURE'/'RCENTER '/g
11      s/'TICE    '/'oceFreez'/g
12      s/'TAUX    '/'oceTAUX '/g
13      s/'TAUY    '/'oceTAUY '/g
14      s/'SWFLUX  '/'oceQsw  '/g
15      s/DIFx/DFxE/g
16      s/DIFy/DFyE/g
17      and add few ocean-forcing diagnostics:
18      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
19    o modifications to pkg/seaice/growth.F and budget.F, which change results of
20      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
21      as actual snow thickness.  It now refers everywhere to effective snow
22      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
23    
24    checkpoint58r_post
25    o modifications to pkg/seaice/growth.F, which change results of
26      lab_sea experiment: fixes pertain to melting snow over open water, to
27      masking EVAP under sea ice, and to using the correct AREA variable for
28      computations of EVAP, PRECIP, HSNOW, and GHEFF
29    o add ability to read bathy, salt, and theta using MNC (off by def)
30    o add flooding algorithm and advection of HSNOW for pkg/seaice;
31      both are turned off by default and do no change any results
32    o seaice advection with pkg/thsice: a step toward the use of non-linear
33      advection scheme, but #ifdef or commented out for now (requires more EXCH).
34    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
35      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
36      in natl_box (affects results @ truncation level: update output.txt)
37    o multi-threading and IO:
38      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
39      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
40        (needed to work with SingleCpuIO): tested in all verif. exp.
41    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
42      affects the results (but none of the verification test uses this scheme).
43    o Adding some pkg/diagnostics capability to pkg/seaice
44      (will certainly be subject to changes)
45    o ctrl: adding new control variables:
46      lwflux, lwdown, evap, snowprecip, apressure, runoff
47    
48    checkpoint58q_post
49    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
50      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
51      high_res_cube configuration by 4% on Columbia.
52    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
53      add (in global_with_exf/code) a version of EXF_INTERP_READ without
54      dynamical allocation (seems to work in multi-threaded).
55    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
56      single CPU io) so that TAF does not have to see EESUPPORT.h
57    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
58    
59    checkpoint58p_post
60    o obcs: stop if obcs is used with useCDscheme = .true.
61    o shelfice:
62     - fix a sign error so that no slip at shelfice interface works
63     - remove stop for combination non-hydrostatic code and shelfice. That does
64       not mean, that the results are correct, but at least they are numerically
65       stable
66    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
67    o added adjoint exch routined for all exch*3d* routines
68      and updated flow directives
69    
70    checkpoint58o_post
71    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
72      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
73    o change controling S/R for writing pickup file (new S/R do_write_pickup)
74      and clean-up reading/writing of pickup files.
75    o fix local version of read/write pickup (NH part) in rotating_tank/code
76    o simplify EXCH interface:
77     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
78     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
79    o added the regrid package
80    o shelfice:
81     - add a simple boundary layer scheme to reduce noise
82     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
83    
84    checkpoint58n_post
85    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
86       local variable (not in common block).
87    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
88      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
89      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
90        to work with SingleCpuIO.
91    o add "_d 0" to real constant of pkg/cfc subroutines ;
92       update exp. cfc_exemple & tutorial_cfc_offline output files.
93    o multi-threading and IO:
94      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
95        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
96      - barrier before and after reading.
97      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
98      - avoid using MDS_WRITELOCAL for LAND pkg output.
99      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
100        common-block variables ; Allows multi-threading with master-thread IO.
101    o change default MAX_NO_THREADS from 32 to 4 ;
102      and stop cleanly when MAX_NO_THREADS is too small.
103    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
104    
105    checkpoint58m_post
106    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
107       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
108    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
109       keep global_ocean.90x40x15 (for AD testing) with former secondary test
110       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
111    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
112        add MITgcm_tutorials (= code + all the tutorials)
113    o ecco, option to compute cost for total ssh (mean+anom)
114    o consistent with addition of ptracer and ssh in pkg/profiles
115    o profiles: adding ptracer and ssh
116    o testreport: change multi-test output-file name
117      (from output.txt.{name} to output.{name}.txt)
118    o profiles: now ok for mutli-tiles case
119    o seaice: add 4 parameters for different advection schemes for area,
120      (effective) seaice thickness, enthalphy, and snow height. Their default
121      is the standard parameter SEAICEadvScheme
122    o calc_gw:
123     - add cosFacU in zonal viscous flux (harmonic.visc.).
124     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
125       of tutorial_plume_on_slope.
126    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
127    o calc_gw: true flux-form, account for horizontal grid spacing.
128      update rotating_tank results, but not plume_on_slope (affected at
129      truncation level, 11 digits).
130    
131    checkpoint58l_post
132    o calc_gw:
133     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
134     - remove side-drag for now (need to fix it); update plume_on_slope results.
135     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
136    o commit code to make SST/SSS weights spatially variable
137      (based on either variable in-situ or variable initial T/S weights)
138    o pkg/ecco:
139      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
140        now based on horizontally varying weights wthetaLev, wsaltLev
141      * cost_averagesflags now returns year indices in addition to day, month
142      * sflux balance is performed on annual basis
143        (sflxumm, sfluxmm2, bal_sfluxmm)
144      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
145        including separate counting and multipliers
146    o pkg/rbcs
147      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
148    
149    checkpoint58k_post
150    o testreport:
151     - always build in dir. "build" (if not there, mkdir build instead of building
152       & running in input)
153     - run in dir run (if it exists), in build otherwise.
154     - call prepare_run (if input/prepare_run exists)
155     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
156    o pkg/exf modifications to interpolation and rotation routines for more
157       reasonable treatment of North Pole singularity: for tracers North Pole
158       value is set to northernmost zonal-mean value, for zonal velocity it is
159       set to zero, and for meridional velocity it is set to northernmost value.
160    o pkg/exf/exf_check_range.F
161     - add tile index to diagnostics and move stop statement to the very
162       end of the routine.
163    o pkg/diagnostics: (diagnostics_main_init.F)
164      define title of isomorphic variables according to the current config.
165    o pkg/thsice with pkg/seaice dynamics:
166    - fix domain of computation (interior only, required for exf) and do exchanges
167    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
168    o towards a standard way of dealing with multi-threading in MONITOR
169      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
170    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
171       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
172    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
173    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
174    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
175       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
176    o tracer advection:
177     - clean-up and simplify calc_common_factors.F
178     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
179       advection subroutine (but still not used within DST advection S/R)
180    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
181    
182    checkpoint58j_post
183    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
184      from file (collects calls previously in FORWARD_STEP)
185    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
186    o adjoint store dir. adjusted accordingly
187    o genmake2
188      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
189    
190    checkpoint58i_post
191    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
192      on wind stress (SEAICEstressFactor defaults to 1.)
193    o Total number of Timers is finite (<=40): comment out 2 non-essential one
194      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
195    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
196      on CS-grid: no longer loosing mass.
197    o exf & curvilinear-grid: no longer modify longitude xC & xG.
198    o pkg/ggl90: fix sloppy output and fix a bug
199    o pkg/seaice: added SEAICEuseEVPpickup parameter
200      - Set to false in order to start EVP solver with
201        non-EVP pickup files when using SEAICEuseEVP
202      - fix sign error in diffusion in seaice_calc_rhs
203    
204    checkpoint58h_post
205    * Modifications for bottom topography control
206      o replace hFacC by _hFacC at various places
207      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
208      o add non-self-adjoint cg2d_nsa
209      o update autodiff support routines
210      o re-initialise hfac after ctrl_depth_ini
211      o works for 5x5 box, doesnt work for global_ocean.90x40x15
212    * Adding verification for 5x5 box (4-layer) bottom topography control
213    
214    checkpoint58g_post
215    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
216       used for mean seasonal cycle, mean diurnal cycle); add an example
217       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
218    o pkg/ggl90:
219      - add parameter (minimum surface kinetic energy)
220      - fix bug (avoiding division by zero)
221    o couple pkg/thsice to pkg/seaice:
222      - modify advection in seaice to accomodate new scalar fields to be advected
223      - only muliDimAdection scheme work with seaice/thsice
224      - mapping of thsice-variables to seaice-variables, back and forth
225      - does not break the verification experiments, but does not give the
226        desired results either
227    o pkg/seaice
228      - make (default) second order advection a bit less confusing?
229    
230    checkpoint58f_post
231    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
232      to pkg/seaice):
233      - new routines thsice_map_exf and thsice_get_exf provide the interface
234      - add an additional formal parameter to thsice_solve4temp
235    o pkg/exf:
236      - add new fields wspeed, snowprecip (to be able to couple to thsice)
237      - correct Stefan-Boltzmann constant
238      - new parameter for longwave surface emittance
239      - separate some stuff from exf_bulkformulae into new routines  
240        exf_radiation, exf_wind
241      - add new parameters and constants: longwave emissivity for ocean, ice
242        and snow, evaporation parameters over ice
243      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
244        either wind from stress or stress from wind
245    o pkg/thSIce:
246    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
247    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
248       and THSICE_CALC_THICKN
249    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
250    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
251      to make debugging easier.
252    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
253    o pkg/bulk_force:
254      - clean-up comments and parameters ;
255      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
256    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
257      generate new output for test-experiment: aim.5l_cs.thSI
258    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
259      testreport accordingly
260    
261    checkpoint58e_post
262    o SEAICE_CGRID adjoint done
263    o R_STAR adjoint implemented.
264      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
265      * need to sort out init. of h0facc, etc.
266    o Make pkg/profile fully independent of ecco,cost, etc. stuff
267      to be able to use it in pure forward.
268    
269    checkpoint58d_post
270    o upgrade simple test-experiment to tutorial example:
271     step.1: duplicate the experiment and (step.2) will remove the old copy.
272      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
273      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
274      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
275      tutorial_global_oce_biogeo    <- copy of dic_example
276      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
277      tutorial_plume_on_slope       <- copy of plume_on_slope
278      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
279      tutorial_global_oce_optim     <- empty for now (David ?)
280      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
281     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
282    o correct a sign problem in cost_scat.F
283    o obcs and ptracers: fix boundary conditions for advections schemes
284      with larger stencil
285    o thsice adjoint: start
286    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
287      completeness
288    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
289      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
290    o ptracers adjoint:
291      * avoid extensive recomputatations
292      * fix missing re-init. of gptr (missed by TAF)
293    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
294      me to turn off the excessive output to STDOUT that this package produces
295    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
296      and add those terms in Vector-Invariant formulation.
297    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
298      if the control period (xx_hfluxperiod etc) is 0
299    o in profiles pkg, clean routines and fix details
300    o in ecco pkg, reading ssh data:
301      fix problem in case the model does not start at iter0=0
302    o fix mnc-pickup/restart for ptracers
303    o new package prifiles:
304      code to compute profile-based cost by Gael Forget
305      (modifs in ecco, ctrl, autodiff)
306    o Benign bug fix in initialization (spotted by M. Mazloff) of
307      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
308    
309    checkpoint58c_post
310    o adjoint: finish NLFS adjoint and provide reference output in
311      verification/global_ocean.90x40x15/results_ad_nlfs
312    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
313      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
314      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
315      with SEAICE_CGRID defined.
316    o move calendarDumps from "data" to "data.cal" and clean-up the code
317      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
318    o add useEXF & useCAL flags (for now, set in hard-coded way)
319    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
320      (were missing in NH mode, and wrong in quasihydrostatic mode).
321      waiting for Chris updated version of calc_gw to add those CALLs.
322    o fix bug in quasihydrostatic S/R ;
323      add a test for this option: global_ocean.90x40x15.qshyd
324    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
325      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
326    o add on/off flag useOffLine for package OFFLINE
327    o seaice:
328      - modify advection so that it works also on the C-grid
329      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
330        problem in multi-tile runs with C-grid
331      - add flags for clipping ice velocities and/or masking solver forcing
332      - fix drag (ocean on ice) formulation and a bug that caused noise in the
333        C-grid solver
334      - added a few comments to seaice_diffusion.F
335      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
336        are now exclusive)
337      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
338        required re-ordering the code a little:
339       + make DAIRN global variable (defined in SEAICE)
340       + move computation of the viscosities eta and zeta into a new separate
341         routine (because I need to recompute them in seaice_ocean_stress.F)
342    
343    checkpoint58b_post
344    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
345      update output.txt of exp. aim.5l_cs.thSI
346    o various mnc cleanups and improvements:
347      + shrink lookup tables by factor of ~4
348      + better error reporting when running out of lookup space
349      + able to handle longer path/file names (up to 500 chars)
350    o adjoint:
351      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
352      - TBD: "hidden" mom_vecinv recomp. in dynamics
353    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
354     (allow to differentiate between forcing components using new integer flags:
355      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
356     and add new flag to put Dissipation tendency out of Adams-Bashforth.
357    o ecco
358      - enable trend removal from SSH anomaly obs.
359    o adjoint
360      - a fix for PmEpR when #undef EXACT_CONSERV
361      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
362      - try to fix "hidden" recomp. in forward_step for NLFS
363        (NLFS seems broken sometimes after I checked it in)
364    o seaice:
365     - add c-grid version of the dynamic solver:
366       + three new routines that are the c-grid substitute lsr, dynsolver
367         and ostres
368       + put a few fields that were local to dynsolver into global common
369         blocks, so that I can move the computation of stresses etc into
370         seaice_lsr (saves coding but may break the adjoint).
371     - replace more hardwired parameters by runtime parameters
372     - add ice masks that mask the rhs of the implicit solvers where there
373       is no ice (commented out in seaice_dynsolver, because i am not sure
374       if this works properly), eventually this should replace the clipping
375       of ice velocities in seaice_dynsolver to +/-40cm/s.
376    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
377      include it only where its needed
378    o move balancing of fluxes before the call of external_forcing_surf
379    o seaice:
380      - correct units of turning angles (now they are really in degrees)
381      - move computation of GWATX/Y out of main routine into dynsolver
382      - initialize GWATX/Y in seaice_init
383    o Apply mask on Fresh-Water flux (needed for SSH forcing).
384      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
385    o seaice: add runtime flags for turning angles (default to zero)
386    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
387      and trend from exf forcing and ctrl control adjustments
388    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
389      (since checkpoint57x_post)
390    o change the default rotation period to 86164.s = the Earth rotation
391    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
392      and based on a reference stratification. Tested within hs94.cs-32x32x5.
393    o seaice advection: add code for choosing between the default (2nd order
394      central differences) and multiDim advection schemes provided by
395      pkg/generic_advdiff
396    o seaice:
397      - removed all references to SEAICE_GRID.h fields from
398        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
399        (cubed-sphere configuration will change a little)
400      - grid computations in seaice_init are obsolete now.
401      - cleaned up code a little so that is easier to read (hopefully).
402      - added new (better?) discretizations of default advection and diffusion
403        (turn on with SEAICEuseFluxForm)
404      - replace 1 in 3d global fields by kSurface in growth.F
405      
406    checkpoint58a_post
407    o seaice:
408      - bug fix in advect.F
409    o shelfice:
410      - separate shelfice load anomaly from pload (breaks with time
411        dependent forcing), => introduce constant field shelficeLoadAnomaly.
412        Its default is 0., but it may be computed more cleverly from (unknown)
413        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
414        done offline. A good approximation of the pressure load anomaly is
415        necessary to avoid large initial adjustment processes underneath
416        deep-reaching shelfice.
417      - small fix in ISOMIP shelfice_thermodynamics
418      - add more sophisticated thermodynamics of Hellmer (1989), this is
419        now the default
420      - give a few constants more intuitive names
421    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
422      if bulk formulae are used in long integration (especially EmPmR). Turn
423      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
424      if balancePrintMean, the imbalance that is substracted is printed to
425      STDOUT.
426    o fix bug (typo) in obcs_apply_eta.F
427    o add a new package shelfice which enables us to model the circulation
428      underneath shelf-ice with draughts of hundreds of meters.
429     - works
430     - to do: + include improved thermodynamics
431              + check whether kSurfC (from model/inc/SURFACE.h) can be used
432                instead of new field kTopC
433              + can we use topoFile, Ro_surf and existing code in ini_depth.F
434                instead of new field R_shelfIce and new code in ini_depth.F
435                and ini_mask_etc.F?
436              + adjust vertical mixing schemes?
437    o seaice pkg:
438     - add a cpp-flag to include a simple formula for a salinity dependent
439       freezing point of sea water at the surface
440     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
441       meridional stresses are now different (and hopefully correct)
442    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
443       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
444       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
445    o pkg/diagnostics: add options and parameters for regional-statistics
446       diagnostics ; define regions by reading a region-mask from a file
447       (might add other options later)
448    o pkg/bulk_force:
449     - add option and parameters to use AIM surface-flux formulae.
450     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
451       others forcing fields (defined in PARM05, parameter file "data") are loaded
452       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
453     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
454     - use the right EXCH call for uwind,vwind (to work on CS-grid).
455     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
456       and parameters (note: calcWindStress replaces .NOT.readwindstress).
457     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
458    
459    checkpoint58
460    o add "--embed-source" option to genmake2 which, when the supporting
461      tools can be compiled (as determined by genmake2) will turn on the
462      embed_files package which then embeds the entire MITgcm source code
463      (*.[fFhc] + Makefile) used for the build within the executable
464      - requested by CNH but off by default
465      - adds a paltry <9MB to the mitgcmuv executable in most cases
466      - only writes the output when useEMBEDSRC in eedata is true
467    o clean up 3-dim. relaxation codes:
468      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
469      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
470      * Thanks to Tom Haine for testing!
471    
472    checkpoint57z_post
473    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
474      affects output (@ truncation level) of exp. plume_on_slope ; updated.
475    o fix the pickup behavior for obcs in combination with ptracers
476    o fix a bug in ptracers_external_fields_load
477    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
478      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
479    o transfered surface NH pressure to eta field (if exactConserv).
480    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
481         and update lab_sea output.txt file.
482    o completing 3-dim. relaxation code: additional term
483         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
484      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
485      * At compile time, in "EXF_OPTIONS.h" set
486          #define  ALLOW_CLIMTEMP_RELAXATION
487          #define  ALLOW_CLIMSALT_RELAXATION
488      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
489          tauThetaClimRelax3Dim = 15552000.0,
490          tauSaltClimRelax3Dim  = 15552000.0,
491      * 3 cases:
492          1) Use a constant-in-time 3-dim. field
493          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
494          3) Real-time relax. to time-evolving prescribed field
495    o Adding Laplacian-type smoothness constraint on
496      initial and boundary (forcing) controls (ic, bc)
497      * enable at compile-time via
498        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
499      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
500      * Absolute scale somewhat unclear so far
501      * no area weighting was included since no other cost term does so far
502    
503    checkpoint57y_post
504    First step for a NLFS adjoint
505    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
506    o new init. routines for calc_r_star, calc_surf_dr
507    o still need to deal with ini_masks_etc
508    o testreport seemed happy
509    checkpoint57y_pre
510    
511    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
512    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
513    o add new offset feature to offline pkg (plus minor cleanup)
514    o cfc fixes for final year of integration
515    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
516      be in GCHEM_OPTIONS).
517    
518    checkpoint57x_post
519    o fix testreport Pb in multiple test experiment.
520    o cleanup our namelist syntax in verification:
521      - make it more F95 standards compliant (some work still needed)
522      - allows the vast majority of our tests to work with gfortran
523    o Non-Hydrostatic:
524     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
525     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
526    o Allow to apply AB on T,S rather than on AB(gT,gS):
527     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
528     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
529       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
530     - need a "clever" read_pickup to restart from the other AB formulation
531    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
532    o remove some unused variables (reduces number of compiler warnings)
533    o adjoint
534      * Disable useVariableViscosity for adjoint for time being
535        (there are a number of extensive recomputations)
536      * Initialize certain variables needed for adjoint
537    
538    checkpoint57w_post
539    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
540                 fix the singleCpuIO RS version of MDSWRITEFIELD
541       and add a WARNING if using globalFiles=T with multi-processors.
542    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
543      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
544    o tracer advection scheme:
545      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
546       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
547       was not very convenient).
548      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
549       (further tests needed for the implicit DST & Flux-Limiter schemes).
550    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
551      and sRef for convenience, handy, when you want to initialize
552      ptracers in a large domain with a constant non-zero value. Also,
553      untangle ptracers_init.F a little.
554    
555    checkpoint57v_post
556    o change dome exp. to use variable viscosity in side-drag terms.
557    o remove all the files from the cfc_offline test since they are now
558      incorporated into tutorial_cfc_offline which has been producing
559      identical results for a few days of testing
560    o add new parameter: sideDragFactor to enable half-slip-side BC
561      and change side-drag S/R to use viscosity from mom_calc_visc
562      (can switch back by setting sideDragFactor=0.); affects results at
563      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
564       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
565    o vorticity & strain are now computed without masking, to account for
566      no-slip-side BC in variable viscosity calculation ; mask is applied
567      anyway later on, before computing advection/coriolis terms.
568    o modify exp4 to test new obcs support for reading from external files
569      and for passive tracers
570    o fix behavior of ptracers_monitor when monitor output is written to a
571      netcdf-file; still not independent of monitor.F (writes in the same
572      file).
573    o change default value of tRef (put a uniform, meaningful value for ocean
574      & atmos) and initialize sRef (was missing, as Martin mentioned).
575    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
576      to be proportional to enstrophy dissipation length.  Thus,
577       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
578      This is now consistent with Smagorinsky and with the manual.
579    
580    checkpoint57u_post
581    o OBCS and PTRACERS: add open boundary support for passive tracers
582      - either use homogenous (pseudo) v.Neumann conditions or prescribe
583        OB-values from file; this is not different from the way theta and salinity
584        are treated
585      - however, Orlanski-radiation conditions are not supported, and the model
586        will stop if you use pTracers and Orlanski at the same time.
587      - beefed up the rountine obcs_external_fields_load: now only those open
588        boundary values are overwritten with values from files for which there
589        are really files, otherwise the OB-fields remain untouched. This makes
590        it possible to use different OBs at different ends of the domain (as
591        with EXF)
592    o reduce number of exch calls in shap_filt (s2).
593    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
594      truncation level) 4/5 MLAdjust test results (11&12 digits match).
595    
596    checkpoint57t_post
597    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
598    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
599      same truncation, independent of the face number: affects affects several
600      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
601    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
602      note that biharmonic viscosity + no-slip was not tested in any experiment.
603    o fix bug in non-linear free-surf side-drag ; generate new output for
604      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
605    o make mnc honor the writeBinaryPrec flag for most kinds of output
606    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
607    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
608      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
609    o add brackets in multi-terms sum to get same truncation, independent of
610      the face number (manage to get exactly same value of gU,gV at the cs-edge)
611      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
612    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
613      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
614      a maximum grid-scale Reynolds number.  Also, changes all length calculations
615      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
616      Suggested values of viscosity parameters found in mom_calc_visc.
617      Many new viscosity diagnostics available.
618    
619    checkpoint57s_post
620    o Add clearing-house for viscosity calculations, mom_calc_visc and
621      correct numerous bugs in LeithD and Smagorinsky discretizations.  
622      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
623      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
624      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
625      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
626      The Strain-Tension form is now called with useStrainTensonVisc=.true.
627      ViscAhStrain and viscAhTension are now retired.
628    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
629    o In response to JMC's bug report, genmake2 now ignores any soft-links
630      that it finds in the *current* directory when searching for files.
631      Soft-links found in any other source directories will still work as
632      they did before.
633    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
634      a C routine to unlimit the stack size
635    o mnc-ify pkg/aim snapshot vars
636    o mnc-ify pkg/land as requested by Daniel
637    o various changes to mnc including:
638      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
639      - output can now be grouped so that all files within a group
640          change the ITER portion of their names in lock-step together
641      - can now read ("global") PER-FACE (in addition to PER-TILE) files
642          and works with both EXCH1 and EXCH2 (but needs more testing)
643      - writing works for all verification test cases w/ g77 on Linux
644    
645    checkpoint57r_post
646    o make MNC variable initialization happen earlier
647    o add diagnostics for (almost) each term of the momentum Eq.
648    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
649    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
650    o remove MINIMAL_TAVE_OUTPUT option ;
651      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
652    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
653      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
654    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
655    o add time-dependent SST, SSS control
656    o cost terms in ecco/ modularized (new cost_generic.F)
657    o cost_averages routines are modularized (new cost_averagesgeneric.F)
658    o new infrastructure for seaice model vs. obs misfits in seaice/
659      * driver from the_main_loop.F is seaice_cost_driver.F
660      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
661      * gradient check in Exp. 6a of natl_box_adjoint/
662    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
663      (see README file)
664    
665    checkpoint57q_post
666    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
667    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
668      - bug was reported by Jean-Michel and Ian Fenty
669    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
670      update exp. cpl_aim+ocn output.
671    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
672      Needed for high-res. runs with large global files
673      to be able to limit tapelev size
674    o Changed some tests for adjoint:
675      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
676      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
677      * global_ocean.90x40x15/ back to default 3-level checkpointing
678    o Modifications to enable scripted COMMON to MODULE conversion
679      * verification/OpenAD/code/ has necessary scripts and description;
680      * converts, compiles and runs successfully;
681    
682    checkpoint57p_post
683    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
684    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
685      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
686    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
687    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
688      (was already the case for dissipation with mom_vecinv,
689       and also the case for grad.PhiHyd when staggered-timeStep)
690      This will allow to put dissipation out-off the AB time-stepping.
691     Unfortunately, affects truncation error. Update output of exp. that "fails"
692      (cg2d matching number) and leave the others for later: front_relax(10),
693      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
694      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
695    
696    checkpoint57o_post
697    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
698      (2) its ready to be documented during the 20050801 DocFest
699    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
700      for ideal_2D_oce and lab_sea on linux_ia32_g77
701    o set to #undef CTRL_SET_OLD_MAXCVARS_30
702      in global1x1_tot/code_seaice_adj to access indices 32, 33
703      (worth another tag)
704    
705    checkpoint57n_post
706    o adding precip control xx_precip 32
707    o adding swflux control xx_swflux 33
708    o Replacing 10 forcing penalty cost routines by 1 generic.
709    o Implementing partitioning in time-mean and variable adjustment
710      for atmos. state.
711    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
712    o in natl_box_adjoint:
713      * updated exp 1 to 10
714        (but does not have time-mean vs. variable split results yet)
715    o updated global1x1/*_seaice_adj/
716      to incorporate latest changes
717    o enable useSingleCpuIO for mdsio vector routines
718      (applies in particular to tapelev I/O)
719    o removed inefficient K-loop in all active_file*control*.F
720    
721    checkpoint57m_post
722    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
723      and advect_cs (use EXCH-2 and standard cs-32 grid files).
724    o pkg/exch2: filling of face-corner halo regions is optional
725      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
726    
727    checkpoint57l_post
728     tag before updating tutorials (pre-release-2)
729    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
730       for output and interpolation of input fields onto model grid)
731    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
732       Affects results of exp. rotating_tank ; update output.txt.
733    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
734          and taking the square quantity and/or using a fraction-weight field.
735    o fix aim_diagnostics_init.F mate numbers.
736    o add mnc output capability to diagnostics/diagstat and update
737      our cvsignore files for the ACSII output generated
738    
739    checkpoint57k_post
740    o lab_sea now uses diagnostics package and provides a suite of
741      new EXF diagnostics output.
742    
743    checkpoint57j_post
744    o exf
745      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
746        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
747        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
748      * extended diagnostics output
749        - now includes all EXF variables
750        - hs, hl moved to common block
751        - separate S/R for diagnostics, called after ctrl vector is added
752        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
753        - EXFqnet contains true Qnet (i.e. includes qsw)
754      * updated verif. lab_sea, global_with_exf
755      * Rearranging hflux (exf_mapfields -> exf_getforcing)
756        to ensure that diagnostics sees a true EXFqnet
757    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
758    o diagnostics pkg: change pointers so that 1 diagnostic can be used
759      several times with different frequencies.
760    o mnc-ify the thsice package as requested by Daniel Enderton
761      - the monitor--MNC output needs work
762      - many attributes need to be added (most are currently blank)
763    o mnc-ify theaim_v23 package as requested by Daniel Enderton
764      - many attributes need to be added (most are currently blank)
765    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
766    o add Sadourny like discretization to the 4th.O vorticity advection scheme
767    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
768      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
769         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
770    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
771     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
772    
773    checkpoint57i_post
774    o Diagnostics package was changed: diagnostic allocation is now deactivated
775      by setting an empty file name in the namelist (used to be by setting 0 frequency)
776    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
777      add 1rst Order upwind vertical Shear.
778    o add a quick fix for A/B checkpointing in OFFLINE mode
779    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
780      end-run around the C/Fortran linking horror in eesup/src/timers.F
781    o added pkg/runclock: allows user to terminate run based on wall clock
782    o added non-hydrostatic scaling parameter: nh_am2
783    o pkg/my82: futile attempt to make results compiler-independent by adding
784      some "_d 0", etc. no effect.
785    o for mnc output, fill the 'T' coordinate var with myTime and create a
786      separate 'iter' variable for iteration count
787    o pkg/diagnostics:
788      add new capability: output of Global/Regional & per-level statistics ;
789      tested against monitor output (including land & thSIce) on various exp.
790    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
791    
792    checkpoint57h_done
793      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
794      data.diagnostics, data.gchem, data.ptracers) is done.
795    
796    o pkg/diagnostics: prepare for Global/Regional statistics.
797      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
798    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
799      and rename it: DIFFERENT_MULTIPLE
800    
801    checkpoint57h_post
802    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
803    o pkg/diagnostics: change output frequency, now in seconds (instead
804      of Nb of iterations). This requires to change data.diagnostics.
805    checkpoint57h_pre
806    
807    o in mnc, let the user create the output dir if both mnc_outdir_date
808      and mnc_outdir_num are false
809    o add fflags() to pkg/diagnostics which allows one to specify, on a
810      per-file basis, the file precision [default behavior is unchanged]
811    o added diagnostics to pkg/kpp, including computation of mixed layer
812      depth based on a temperature/density criterion
813    o updated verification/natl_box to test the new pkg/kpp diagnostics
814    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
815    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
816    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
817      not mnc -- this mistake was found by JMC and is now corrected
818    
819    checkpoint57g_post
820    o add Adams-Bashforth 3rd Order time stepping:
821      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
822      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
823    checkpoint57g_pre
824    
825    o make lambda[Theta,Salt]ClimRelax spatially varying
826      (default remains spatially uniform constant based on tau)
827    o added new control variables
828      * init. uVel, vVel, etanN
829      * lambda[Theta,Salt]ClimRelax
830    o separate masks used for ctrl_pack/unpack 'from write_grid' output
831      (suggested by G. Forget)
832    
833    checkpoint57f_post
834    o add parameter "baseTime" = model base time = time at iteration zero
835      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
836      account for baseTime shift
837    o move Coriolis arrays from PARAMS.h to GRID.h
838    checkpoint57f_pre
839    
840    o mnc-ifying the seaice package
841    o introduced an alternative length scale calculation for use in the limiting
842      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
843    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
844    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
845      as well as grad(vort3).  Made it compatible with both approximate form
846      for the cubed sphere and full form of these gradients.  Added flag
847      useFullLeith to select between approximate and full form.  
848    o add "d0" in getcon.F to reduce differences between compilers/platforms
849      update output.txt of exp. fizhi-gridalt-hs
850    o change port_rand funtion to allow to set the seed.
851    o fix obscure MNC bug involving conversion between reals and integers
852      - it caused no problems with certain (eg. gcc, ifc) compilers but the
853        new version is now more standards-compliant
854    o adjoint-related modifications
855      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
856      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
857      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
858    
859    checkpoint57e_post
860    o Adding eddy stress controls a la Ferreira et al.
861    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
862    
863    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
864      update output.txt of exp. fizhi-gridalt-hs
865    o add more "Z" dimensions and associated coordinate vars to MNC
866    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
867    o parameter calendarDumps: when set, approximate months (30-31 days) and years
868      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
869      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
870      months and years.  Requires pkg/cal.
871    o diagnostics: add pickup functionality
872      - off by default for backwards compatibility
873      - current version only uses MDSIO -- MNC will be added
874    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
875    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
876    
877    checkpoint57d_post
878    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
879    o modify verification/ideal_2D_oce so that it tests the creation of mnc
880      output from the diagnostics package
881    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
882    o make genmake2 more portable by using ".$FS" instead of ".f" for more
883      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
884    o add coordinate variables to the MNC output from the diagnostics package
885    o change MNC-flags default value: true when useMNC=TRUE
886    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
887      the ability (off by default) to read the grid information using MNC
888    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
889    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
890    o do snap-shot diagnostics at the middle of the time-interval (instead of
891      at the end).
892    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
893      new test for AIM with thSIce + slab-ocean
894    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
895    o move state variable diagnostics to the beginning of the time step ;
896      (note: still needs some work specially for snap-shot diagnostics)
897      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
898    
899    checkpoint57c_post
900    o Change testing option (-ieee) to get closer agreement between g77 & ifort
901    o generate new output.txt files on faulks with g77 & the new -ieee option
902    checkpoint57c_pre
903    
904    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
905      update output.txt of exp. global_ocean.90x40x15
906    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
907      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
908    o add saltFlux(+File) forcing capability with periodicExternalForcing
909    o allow to use pkg diagnostics for GM-Redi & ThSIce output
910    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
911    o improvements for the MNC output from DIAGNOSTICS:
912      - correct handling of the unlimitied dimension
913      - all dims now have associated coordinate variables
914      - variables located at U, V, and Corner ("Z") points are now written
915        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
916        *all* data points are output
917    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
918    o added pkg/seaice/seaice_monitor.F
919    o mdsio_readfield.F can now read files visible only to master MPI process.
920    o pkg/seaice: some test code for ice-modified ocean stress
921    o exf_getffields interpolation defaults to bilinear for all scalar forcing
922      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
923      spurious negative numbers for precipitation and humidity.  Will cause
924      some small numerical differences for integrations using pkg/exf/exf_interp.F.
925    o pkg/ctrl/
926      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
927        May be enabled via doPackDiag
928      *  introduce z-scaling of
929         + gradient (doZscalePack) and
930         + control (doZscaleUnpack)
931    o pkg/mdsio/
932      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
933      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
934    
935    checkpoint57b_post
936    o simplify options in diagnostics_fill arguments (remove weird combinations)
937    o fix MNC coordinate variables so that they now contain per-face index
938      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
939      general, EXCH2 grids are only aligned to a "local" coordinate system
940    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
941    o Implement instantaneous output within pkg diagnostics:
942      setting a negative frequency in data.diagnostics produces
943     "snap-shot" output (as opposed to time-average if freq > 0)
944    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
945      NOTE: change ptracer diagnostics name: use 2 characters to work with
946            more than 9 tracers. Add also diagnostics of advect & diffus flux.
947    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
948      becomes the coordinate variable for the 'T' dimension
949    o add CF-style coordinate variables to MNC
950      - just a first cut:  numbers are meaningless on the cubesphere and
951        missing along the T axis but otherwise it works!
952    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
953    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
954    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
955      this is based directly on what the model compute, so that the content of
956      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
957    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
958    o clean up build options files for SunOS, in particular
959      - remove -traditional from xmakedepend
960      - change -xarch=v9 to -xarch=native for f77
961      - restore use of make (not gmake)
962      - add CC=gcc if using g77
963    o changes per discussion of AM, JMC, & EH3 today:
964      - move redundant "grid" variables out of "state" -- in preparation of
965        creating proper CF-style coordinate variables and in recognition
966        that any/all grid variables can be easily copied (eg. w/NCO) from
967        the grid files into any of the other NetCDF files
968      - *always* output grid variables with MDSIO (this will eventually be
969        changed)
970      - output MNC grid file if useMNC is true
971    o every instance of _END_MASTER() has been found and replaced with
972      _END_MASTER( myThid ) in order to satisfy certain picky Sun
973      preprocessors
974    o re-arrange diagnostics pkg initialisation:
975     - allow each package to extend the available diagnostics list
976     - add some checking and fix small problems (multi-threaded, ...)
977     - new S/R diagnostics_fill (replace fill_diagnostics):
978       look through the short list of active diag. (instead of the long list)
979       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
980    
981    checkpoint57a_post
982    o this set of changes restores TAMC compatibility
983      tested for global_ocean.90x40x15 adjoint on trough
984      (what a pain)
985    
986    checkpoint57a_pre
987    o some modifs in tools/build_options for sunos
988    o call ctrl_pack for ctrl at end for optimcycle=0
989    
990    checkpoint57
991    o add horizontal bi-harmonic viscosity for vertical velocity
992      - new parameter viscA4W (defaults to viscA4)
993      - affects only non-hydrostatic code
994      - to be done: no-slip lateral boundary conditions
995    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
996    o implement Implicit Vertical advection for pTracers
997    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
998      (implemented also for implicit vertical diffusion & advection)
999    o OBCS: extend application of tracer open boundary conditions
1000      to a strip beyond the boundary of width Olx/Oly
1001    o add call monitor to TAF set of required calls (flow directives)
1002      and include in natl_box_adjoint
1003    o untangle a few ifdefs related to cost, ctrl, autodiff
1004      untangel a few ALLOW_ECCO_OPTIMIZATION
1005    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1006      (theta2, salt2 in ecco_cost_weights)
1007    
1008    checkpoint56c_post
1009    o OBCS as control variables
1010      - update ctrl_ad_diff.list, obcs_ad_diff.list
1011      - remove balance of obcs controls from default
1012      - fix index bug nobcs in ctrl_init
1013      - fix dummy fields filen in ctrl_pack
1014      - add dummy weights for obcs
1015    o lsopt: comment out fort.94 output
1016    o optim:
1017      - remove unnecessary header files
1018      - adjusted namelists
1019      - add xerbla.F to Makefile
1020    o exf:
1021      - multiple modifications of exf_check_range
1022      - unit change in exf_init_runoff from [m/year] to [m/s]
1023    o mdsio:
1024      - i/o-vector change debugLevel from debLevA to debLevB
1025    
1026    checkpoint56b_post
1027    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1028      is called from DO_THE_MODEL_IO
1029      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1030      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1031      - clean up PTRACERS_WRITE_TIMEAVE a little
1032    o add another verification experiment that tests both the cfc-pkg and
1033      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1034      reactive tendencies treated inline with regular timestepping
1035    o testreport previously did a lousy job of comparing small numbers, so
1036      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1037      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1038      testreport.
1039    o ptracers_monitor: bug fix for MPI
1040    
1041    checkpoint56a_post
1042    o GCHEM: finish reorganizating the package
1043      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1044        (introduces another 3D-array for each passive tracer, but only if
1045        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1046        gchemTendency is not needed because the timestep is done separately)
1047      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1048      - GCHEM is now---more or less cleanly---separate from PTRACERS
1049      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1050        so clear to me how that should be done in a general way.
1051    o CFC: improve formatting of output in CFC_ATMOS
1052    o PTRACERS:
1053      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1054        that ALL experiments with ptracers enable can be checked. This makes
1055        GCHEM_MONITOR obsolete.
1056      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1057        monitorFreq
1058      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1059    o add PTRACERS (PTR0[1-5]) to testreport output
1060    o exf_check_range:
1061      * default changed to .TRUE.
1062      * will check values for niter0 if debLevA, every timestep if debLevB
1063      * STOP in exf_check_range if 'out of range'
1064      * range chosen generous to allow for potential extema
1065      TBD: a version with stricter range
1066           permitted range would be runtime parameters
1067    o GMredi:
1068      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1069      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1070      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1071    o GCHEM:
1072      - move call to GCHEM_FORCING_SEP, so that it is now called before
1073        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1074      - introduced a useGCHEM runtime flag and applied it everywhere.
1075      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1076        this flag is now only visible within GCHEM-pkg routines.
1077      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1078        be replaced by a 3D array that is computed before thermodynamics; for
1079        this, the tracer ID iTracer had to be included into the parameter list
1080        of ptracers_forcing
1081      - set up forward_step to call gchem_forcing, that will replace
1082        gchem_forcing_int in ptracers_forcing
1083      - cleaning up
1084    o small cleaning of exch2: remove files that are also in eesupp/src
1085    
1086    checkpoint56
1087    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1088    o mnc: cleanup "full" files--fixes out-of-memory problem
1089    o ECCO-GODAE
1090      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1091      * fully merged and updated from SIO code
1092        windstress sign change affects
1093        - exf_inscal_[u/v]stress
1094        - sign of xx_tau[u/v] adjustments
1095        - signs in cost_scat
1096      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1097      * natl_box_adjoint updated and compressed
1098      * 2-level checkpoint switch added
1099        (tested in EXP. 1 of natl_box_adjoint)
1100      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1101    o SVD
1102      * first complete, non-hacked version for SVD calculations
1103      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1104        performed via direct access files admtlm_vector.it????
1105        (via ctrl_[un]pack)
1106      * optimcycle is used for ARPACK iteration counter
1107        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1108      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1109        and add linear transforms where necessary
1110      * controls are initial/final SST, SSS (can be extended; need to check
1111        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1112    o mdsio: filename info to both stderr, stdout
1113    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1114      from sign change
1115    
1116    checkpoint55j_post
1117    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1118      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1119    o add consistent build directories and .cvsignore files to verification
1120    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1121    o make all subroutines 30 or less characters in length for certain older
1122      compilers to work (a thorough search only turns up two routines in
1123      pkg/ptracers)
1124    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1125      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1126    
1127    checkpoint55i_post
1128    o change arrays for total vertical diffusivity (2.D if explicit,
1129      3.D if implicit) ; each ptracer uses its own background value.
1130    o added mnc/NetCDF output capability to ocn_compon_interf
1131      - added bits to verification/cpl_aim+ocn so that it can run on
1132        ITRDA and other clusters without the mpirun "-wd" option
1133    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1134      configuration
1135    o give MNC the ability to create additional files rather than
1136      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1137      - the default is just less than 2GB which is a practical limit
1138        on many systems
1139    o Compute the non-local term using either KPP vertical diffusivity (=default)
1140       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1141    
1142    checkpoint55h_post
1143    o add verification test "vermix"
1144    o remove all the *_ioinc flags and replace with the single global
1145      outputTypesInclusive flag
1146    o allow to set a vertical profile of vertical diffusivity for T & S
1147    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1148    o useMNC moved from data.mnc to data.pkg
1149    
1150    checkpoint55g_post
1151    o Renaming carbon AD experiments to comply with testreport conventions
1152    o Updating adjoint of Held-Suarez hs94.1x64x5
1153    o Fixing directives for non-ECCO forward_step, after ECCO directives
1154      have been fixed to avoid recomp. of do_oceanic_phys
1155      Works well for global_ocean.90x40x15,
1156      but recomp. issue remains for carbon
1157    o Updating adjoint output for natl_box_adjoint after
1158      pkg/ecco has been modified (see taga c55d_post)
1159    
1160    checkpoint55f_post
1161    o rename to timeave_init_fixed
1162    
1163    checkpoint55e_post
1164    o some delicate re-shuffle of store directives to avoid one
1165      extra call of do_oceanic_physics
1166      affects ecco_the_main_loop.F, do_oceanic_physics.F
1167      checkpoint_lev1_directives.h
1168    o NB: this may break global_ocean adjoint temporarily,
1169      but it is clear how to fix it. Will do later, need this now.
1170    
1171    checkpoint55d_post
1172    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1173    o ecco_cost_weights is modified to 1x1 runs
1174    o modifs to allow observations to be read in as
1175      single file or yearly files
1176    o enable to read exf forcing fields as either
1177      single file or yearly files (flag useExfYearlyFields)
1178    checkpoint55d_pre
1179    
1180    o switch between 2-level and 3-level checkpointing
1181    o add ability of MNC to write local and "partial" (eg. 2D slices where
1182      the full 3D field is never actually stored) arrays to NetCDF files
1183      with the correct (that is, the complete multi-dimensional) set of
1184      array indicies
1185      - used in mom_vecinv() to write the diagFreq output
1186      - tested (demonstrated) in verification/aim.5l_cs
1187    o further mnc-ification
1188      - add verification/lab_sea to the list with mnc setups
1189      - fix undefined mnc v-names in cd_code
1190      - add kpp to mnc output (both snapshot and timeave)
1191    o non-hydrostatic code
1192      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1193        in calc_gw.F
1194      - defaults to viscAh
1195      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1196        friction or Leith) in non-hydrostatic mode, as long as there is
1197        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1198    o pkg/cost
1199      extend simple cost functions to treat time mean quantities
1200      (T,U,V) via cost_accumulate_state from cost_tile
1201    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1202        be 2 times larger than the minimum size the advection scheme requires.
1203        now get a perfect conservation of salt in advect_cs test-exp (updated)
1204    o GGL90 (Gaspar's TKE mixed layer)
1205      - add horizontal diffusion of TKE, requires exchanges in
1206        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1207        default. In OPA there is no horizontal diffusion of TKE but the
1208        mixing coefficients are computed from a horizontal average of TKE of
1209        6 points or so. I think that diffusion has a little more physical
1210        justification.
1211      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1212        was in vain)
1213      - mask tke-variable in ggl90_init
1214    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1215    o fix biharmonic diffusion on CS-grid.
1216    o more obcs stuff
1217      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1218        for reading boundary values. This routine is called from
1219        obcs_prescribe_read
1220      - updated obcs_check
1221      - changed sponge layer relaxation parameter units for days to seconds
1222      - turned off sponge layer by default
1223      - changed argument list of OBCS_CALC to myTime+deltaTclock
1224      - fixed about 35 bugs in obcs_external_fields_load
1225    
1226    checkpoint55c_post
1227    o obcs stuff
1228      - new runtime flags useOBCSprescribe, useOBCSbalance
1229      - re-arranged obcs_calc
1230      - moved exf_getobcs to obcs_prescibe_read
1231        obcs_prescibe_read is called after ORLANSKI stuff
1232        and independent of it (executable can contain all).
1233      - updated obcs_check
1234      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1235        These may be necessary only if tangential velocities are
1236        prescribed at OB, not sure, needs testing.
1237    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1238      which simplifies the calls and passes the ifc check-bounds test
1239    
1240    checkpoint55b_post
1241    o add a 2D scalar, Z location, exchange_2 routine.
1242    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1243      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1244      affects advect_cs results (for the wrong reason): update output.txt
1245    o use a more standard discretization for biharmonic viscosity ;
1246     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1247      affects results of dome set-up: update output.txt
1248    o fix gad_advection.F (CubedSphere part), back to version 1.23
1249    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1250    
1251    checkpoint55a_post
1252    o merged code to
1253      * prescribe/read time-dependent open boundaries
1254        (works in conjunction with exf, cal)
1255      * sponge layer code for open boundaries
1256      * each boundary N/S/E/W now has its own CPP option
1257        (healthy for the adjoint)
1258    
1259    checkpoint55
1260    o up-to-date adjoint of previous breaks
1261      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1262      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1263      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1264      - carbon: * remove tr1-related adjoint verification
1265                * add ptracer as control variable
1266    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1267      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1268    
1269    checkpoint54f_post
1270    o in verification/carbin/ remove experiment related to
1271      ALLOW_PASSIVE_TRACER (array tr1 etc)
1272      code_ad/ input_ad/ results_ad
1273    
1274    o add two new packages
1275      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1276        + subject to optimization (memory)
1277      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1278        + subject to reordering (many GOTOs in the original code)
1279        + so far opps is called for every (i,j) point, and then operates in
1280          the vertical; one may want to reorder the scheme in order operate in
1281          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1282          fields)
1283    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1284      - all verification tests compile and run with linux_ia32_g77
1285      - defaults are compatible with current input files--nothing
1286        should change if you were not previously using MNC
1287      - MNC output has been added in numerous places (eg. timeave)
1288        but there are still a few writes not yet do-able with MNC
1289        (this is in progress)
1290      - flags now allow for either/or/both use of MDSIO and MNC and
1291        documentation will soon follow
1292      - numerous small formatting cleanups for ProTeX
1293    o add version info (via BUILD_INFO.h) to MNC and stdout
1294    
1295    checkpoint54e_post
1296    o add two new packages
1297      - pp81 (Packanowski and Philander, 1981), Richardson number and
1298        stratification dependent mixing
1299      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1300      - these scheme operate in a similar manner as KPP (without ghat, of
1301        course), however there is only one diffusivity that is used for both
1302        temperature and salinity (and passive tracers)ç
1303    o add offline package
1304    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1305      provided by Stephanie Dutkiewicz
1306    o genmake2: add ability to search for C compilers and cleanup test output
1307      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1308    
1309    checkpoint54d_post
1310    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1311    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1312      leading to additional shift by 5 days each year of integration
1313       (i.e. leading to considerable offset over the years)
1314    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1315    o start with no AB and no initial filtering (staggerTimeStep):
1316      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1317    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1318      (external loading & cpl import/export stay in forward_step.F)
1319    o update coupling interface to work with new staggerTimeStep
1320    o change MDSIO ptracers_pickup.
1321    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1322    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1323    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1324    
1325    checkpoint54c_post
1326    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1327      this affects (truncation error) output.txt of test-exp:
1328       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1329    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1330    o change Qnet to always be the net heat flux, (+upward).
1331      affects (truncation error) output of natl_box exp.: updated
1332    o define the max number of passive tracers in PTRACERS_SIZE.h
1333    o start to test mnc routinely in exp0
1334    o add sea-ice loading (sIceLoad) as a new forcing field.
1335    
1336    checkpoint54b_post
1337    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1338       impressive on Altix and Opteron systems)
1339    o diagnostics can now write NetCDF files through the mnc package
1340    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1341    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1342    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1343      affects (truncation error) output of lab_sea & natl_box exp.: updated
1344    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1345    
1346    checkpoint54a_post
1347    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1348    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1349    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1350    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1351      + internal_wave (shift in writing cg2d_ini_res)
1352    checkpoint54a_pre
1353    
1354    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1355      - modified verification/lab_sea and natl_box_adjoint accordingly
1356    
1357    checkpoint54
1358    checkpoint53g_post
1359    o prepare splitting of thermodynamics: store convect.counter in common block
1360    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1361      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1362    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1363    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1364    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1365    o restore adjointability
1366    
1367    checkpoint53f_post
1368    o modifications that affect AIM experiment results (update output.txt):
1369      - no advection of S at top interface Nr (pkg/generic_advdiff)
1370      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1371    o AIM pkg:
1372      - include stability function into surf.Flux derivative relative to Tsurf
1373      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1374    
1375    checkpoint53e_post
1376    o merged cylindrical coord configuration
1377    o added rotating_tank experiment
1378    checkpoint53e_pre
1379    
1380    checkpoint53d_post
1381    o faulks upgraded: re-generate output.txt that have changed:
1382       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1383    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1384    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1385    o added Sadourny discretization of Coriolis
1386      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1387      - re-enabled use of omega3 (useAbsVorticity)
1388    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1389      vector-invariant equations
1390      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1391    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1392      hopefully without new bugs
1393      - still to do: biharmonic friction for non-hydrostatic w
1394    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1395    o regenerated output for global_ocean_ebm (using -ieee)
1396    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1397      of mom_common/
1398      - simple re-arrangement of instructions within computing loop
1399    checkpoint53d_pre
1400    
1401    checkpoint53c_post
1402    o new version of coupler for AIM+thSIce and Ocean models
1403     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1404     - land: change Evaporation of snow
1405     - aim with thSIce: fix bug in snow-precip.
1406    o changes to calc_gw.F
1407     - bug fix for w^2 term near the bottom boundary
1408     - (hopefully) improve the lateral slip boundary condtions for use with
1409        partial/looped cells
1410      - because the bug fix changes two verification experiments anyway (exp5
1411        and plume on slope), change the lateral boundary condition from half slip
1412        to the value of no_slip_sides
1413    o ebm package wasnt quite up to the parallel task. Fixed that.
1414    o Adjoint of EBM package + verification
1415      * TLM OK
1416      * ADM not sufficient accuracy yet (needs further testing)
1417    
1418    checkpoint53b_post
1419    o Commiting new energy balance model to repository
1420      * package is pkg/ebm
1421      * verif. is verification/global_ocean_ebm
1422      * references are in ebm_driver.F
1423    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1424    C        Global thermohaline circulation. Part I:
1425    C        Sensitivity to atmospheric moisture transport.
1426    C        J. Climate 12(1), 71-82
1427    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1428    C        Global thermohaline circulation. Part II:
1429    C        Sensitivity with interactive transport.
1430    C        J. Climate 12(1), 83-91
1431    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1432    C        Destabilization of the thermohaline circulation
1433    C        by atmospheric eddy transports.
1434    C        J. Climate 7(12), 1870-1882
1435    o Will need long integration testing.
1436    checkpoint53b_pre
1437    
1438    o created pkg/mom_common in preparation for variable viscosity code
1439    o renamed and split ini_mnc_io
1440    o pkg/land: only liquid water can diffuse or run-off
1441    o AIM using land: soil wetness availability account for snow
1442    o added printMapIncludesZeros to EEPARMS namelist
1443    
1444    checkpoint53a_post
1445    o restore TAMC compatiility for exf_constants.h
1446      (no usage of _d in .h)
1447    o Additional storing in KPP in an attempt to fix
1448      TAMC problem with adjoint of KPP code.
1449      (no success...)
1450      Identical code works fine with TAF.
1451    o Fixed verification/natl_box_adjoint experiments.
1452      Initial conditions for Experiments 4 and 5 are now
1453      set to "SEAICE_initialHEFF=0", which is more reasonable,
1454      and hence gives results closer to that of Experiment 2.
1455      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1456    
1457    checkpoint53
1458    o stable checkpoint with up to date adjoint
1459      TLM tests only run for 1st grdchk at the moment. Its unclear if
1460      this is a code problem or a problem with resetting code for g_
1461      variables that is being autogenerated wrong.
1462      Otherwise:
1463       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1464       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1465         are both still in chaos following their security messes.
1466    
1467    checkpoint52n_post
1468    o various build (mostly genmake2) changes including:
1469      - ability to build/run more easily within Cygwin and MacOS X
1470      - more complicated Makefiles with a stronger dependence on Gnu Make
1471    o pkg/seaice modifications
1472      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1473        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1474        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1475      - changed proxy for geostrophic velocity and updated
1476        verification/lab_sea/results/* accordingly
1477      - removed ADI dynamic solver from pkg/seaice
1478      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1479        they caused a segmentation fault under certain circumstances
1480      - removed unused field WATR
1481    o bug fix in exf-package:
1482      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1483         now reflect that.
1484    o small fixes in the cal-package:
1485      - set reference date to first of January for the 'model'-calendar
1486      - failing of cal_CheckDate in cal_FullDate now actually results in a
1487        warning
1488    o small modifications in exf-package to increase flexibility:
1489      - change climtempfreeze from a constant to a runtime parameter that
1490        is specified in data.exf_clim (default = -1.9)
1491      - introduce runtime parameter windstressmax (default = 2.0) that is
1492        specified in data.exf
1493    o fix in pkg/thsice:
1494      - update Evap (Tsf changes) to be consistent with Latent heat flux
1495      - maintain snow precipitation unchanged (even if Tsf >=0).
1496     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1497    
1498    checkpoint52m_post
1499    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1500      this does not change any of the results, because myIter=0 in swfrac always
1501      lead to jwtype=2 (the default anyway), but the call makes little sense
1502      as a default
1503    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1504    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1505      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1506    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1507    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1508    o extending useSingleCpuIO option to work with new exch2 I/O format
1509      - old-style, missing-tile I/O is still accessible by defining CPP
1510        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1511    o monitor package can write to NetCDF files and/or STDOUT
1512    o fix re-definition bug in MNC_GRID_INIT_ALL()
1513    o doc/api_reference added
1514      - a framework for building an API Reference Manual using all
1515        the "protex" comments embedded in the code
1516      - see pkg/generic_advdiff, pkg/mnc for examples
1517    o MNC:
1518      - make myThid the last argument for all subroutines
1519      - new default for the grid files: NO halos
1520      - add useMNC and other run-time flags
1521      - separate per-file-group handling of the unlimited dimension
1522      - early initialization of MNC w/ flags read at the eeboot stage
1523        and lookup tables set in initialize_fixed
1524      - write all MNC output to a freshly-created directory
1525    o thermodynamics sea-ice (thsice) is now tested with testreport.
1526    o test exp. advect_cs: use the standard cs32 grid ; update output.
1527    o Added functionality to grdchk:
1528      pick global i,j,k position (or nearest wet) where to perform check.
1529    
1530    checkpoint52l_post
1531    o new land formulation:
1532      a) use ground enthalpy as prognostic variable to ensure exact
1533         energy conservation.
1534      b) account for water temperature and for latent heat of freezing
1535         in all processes (rain, run-off, ground storage)
1536      c) compute surface and ground temperature implicitly.
1537    o aim_v23 modification for new land model:
1538      a) Treat separately land / ocean / sea-ice surface fluxes
1539         to allow implicit computation of land & sea-ice surface temp.
1540      b) add snow precipitation.
1541    checkpoint52l_pre
1542    
1543    o fix problem (when 1 tile is empty) in min/max monitor.
1544    o fix bug in timeAve (u,vZetatave in common block)
1545    o no restoring terms under ice for pkg/seaice
1546    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1547    o bug fix for pkg/seaice pickups
1548    o change MNC call locations and add coordinate attributes
1549    o mask vorticity at the corner ; affects global_ocean.cs output
1550    o fix ini_curvilinear_grid ; test CS experiments with mpi
1551    o aim.5l_cs: modify sea-ice fraction input file ; update output
1552    o exf: Adding simple range check routine for exf fields after read
1553    
1554    checkpoint52k_post
1555    o removed top-level directory "diags"
1556      - we migrated these functions to pkg/timeave a long time ago
1557    o fixed bug introduced in pkg/monitor
1558    o accuracy ctrlprec = 32 insuffient for gradient checks using
1559      averaged fields (I/O via cost_averages)
1560      -> use ctrl.h in active_file*.F to control I/O precision.
1561    o paramter list of CALL ADTHE_MAIN_LOOP
1562    o added initial do_the_model_io to ecco
1563    o set all ...Freq to zero after cost_final
1564      taveFreq, dumpFreq, pChkptFreq
1565    o MAIN and ECCO differentiability restored
1566    
1567    checkpoint52j_post
1568    o fix nchklev in tamc.h for global_ocean...
1569    o Bringing flow and store directives up-to-date
1570    o Really weird thing!
1571      call do_the_model_io from the_main_loop with parameters
1572      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1573      TAF places a faulty re-call of initialise_varia
1574      after cost_final call which should not be there!
1575    checkpoint52j_pre
1576    
1577    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1578      error messages
1579    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1580    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1581      debug output
1582    o modfied mdsio_writefield.F to handle non-global files under exch2
1583    o update AIM Cubed-Sphere exp (aim.5l_cs):
1584      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1585    o update AIM Equatorial Channel exp:
1586      use standard aim_v23 pkg and change the SST fields to be more realistic.
1587    o globalFile now works with exch2
1588    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1589      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1590    o limit timeave output for hi-res integrations
1591    
1592    checkpoint52i_post
1593    o removed CPP_EEOPTIONS.h from verification/*/code
1594    o updated the tiling for global_ocean_pressure
1595    checkpoint52i_pre
1596    
1597    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1598      the old pkg/aim).
1599    
1600    checkpoint52h_pre
1601    o shortened offending lines in exch2_send_rx?.template
1602    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1603    o genmake2: add build & execute test for NetCDF code
1604    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1605      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1606    o added useSingleCPUIO flag to monitor.F and mon_out.F
1607    o added temporary hack for sea-ice dynamics on the cube:
1608      metric terms are ignored and it is assumed that
1609      there is no sea-ice on cube faces 1, 2, 4, and 5.
1610    
1611    checkpoint52f_post
1612    o added exch2 cube routines to pkg/exch2
1613    o modified hs94.cs-32x32x5 to use it
1614    o added new grid files to hs94.cs-32x32x5
1615    checkpoint52f_pre
1616    
1617    checkpoint52e_post
1618    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1619      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1620    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1621      to work with implicit vertical advection and AB ;
1622    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1623    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1624     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1625    checkpoint52e_pre
1626    
1627    o fix bug in impldiff when Nr=1 or Nr=2.
1628    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1629    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1630    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1631      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1632    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1633    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1634    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1635    
1636    checkpoint52d_post
1637    o re-tiled many expts to allow comparison in multi-processor mode
1638      - updated output accordingly
1639      - changed hs94.128x64x5 to use intial T from file rather than use the
1640        random number generator
1641    o add infrastructure in model routines for fizhi and gridalt packages
1642    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1643    o changes to permit hi-res, cubed-sphere, configuration
1644      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1645      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1646      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1647        of surface winds for the cube
1648      (A verification experiment, based on global_ocean.cs32x15, but with
1649       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1650       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1651       complete with example surface forcing files and matlab scripts to look
1652       at the output and compare it with that of global_ocean.cs32x15.)
1653    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1654       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1655       to conform to the common rule.
1656    o check-in the first version of the coupler + interfaces for multi-components
1657       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1658       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1659       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1660       - ocean and atmos. share the same horizontal grid (no interpolation).
1661       - exchanges between component and coupler is done in forward_step
1662    o new verification experiment, cpl_aim+ocn:
1663       coupled ocean - AIM atmosphere on cs32 grid.
1664    
1665    checkpoint52d_pre
1666    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1667    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1668    
1669    checkpoint52c_post
1670    o Fixing OPTIONS files for use of exf:
1671      - ALLOW_ECCO not needed
1672      - ECCO_CPPOPTIONS.h should not be included from
1673        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1674        as has been the case in the past
1675      - All cal/exf related options are currently set in
1676        single header file. Should remain so until we
1677        agree on a consistent new policy.
1678    o Removed all CPP options for cal package.
1679      cal has no more CPP options.
1680    o modified STOREs in GAD_ADVECTION
1681    o corrected key comp. for passkey
1682    
1683    checkpoint52b_post
1684    o new version: "thsice" of thermodynamic sea-ice pkg:
1685     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1686     - modify fluxes but do not change theta directly;
1687     - light cleaning of bulk_force pkg (still needed with thsice).
1688     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1689       + output_thsice.txt to test thsice & bulk_force pkgs.
1690    o put back grid & coriolis monitor output.
1691    checkpoint52b_pre
1692    
1693    o call "do_the_model_io" at the beginning (=> dump initial state)
1694    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1695    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1696      (need info on NUMBER_OF_PTRACERS)
1697    o missing PTRACERS headers in some routines
1698    o default tamc.h in pkg/autodiff supposed to crash
1699      to ensure proper customization
1700    
1701    checkpoint52a_post
1702    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1703      - moved surfaceTendencyTice from pkg/seaice to main code
1704      - subroutine FREEZE_SURFACE now limits only surface temperature
1705        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1706        => new output.txt for global_ocean.cs32x15 & global_with_exf
1707      - keep the old version of FREEZE for backward compatibility;
1708        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1709      - corresponding modifs for TAF directives
1710    o added surface flux output variables to TIMEAVE_STATVARS
1711    o time-averaged output for pkg/ptracers
1712    o fix problem with ECCO-related divided adjoint
1713      snapshot file was missing some ad-variables,
1714      but no warning issued by TAF
1715    
1716    checkpoint52a_pre
1717    o some bug fixes for #undef REAL4_IS_SLOW
1718    
1719    checkpoint52 = ecco_c52_e35
1720    o after testing adjoints of checkpoint51u_post
1721    
1722    checkpoint51u_post
1723    o this is the post-merge tag of the ecco-branch
1724      (needs another clean checkout and re-testing)
1725    o various natl_box_adjoint configs and results
1726      but no input fields
1727    o obcs adjoint not yet merged!
1728    o adding ECCO global 1x1 and 2x2 degree configs
1729    o updated/extended some store directives for seaice
1730    o pkg/ecco now containes ecco-specific part of cost function
1731    o top level routines the_main_loop, forward_step
1732      supersede those in model/src/
1733      previous input data.cost now in data.ecco
1734      (new namelist ecco_cost_nml)
1735    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1736    
1737    checkpoint51t_post
1738    o this is the pre-merge tag of the ecco-branch
1739    
1740    checkpoint51s_post
1741    o cleanup: removed various obsolete #define-s
1742    o pkg/grdchk
1743      - renamed 'ph-grd 3' to 'grad-res'
1744      - merged from ecco-branch
1745        (remaining bug fixes for obcs gradient checks)
1746      - additional high-precision output for testreport
1747        (grep for 'precision_grdchk_result')
1748    
1749    checkpoint51r_post
1750    o cleaned up or removed CPP_OPTIONS.h files
1751    o updated results for some of the tests to reflect the new
1752      optfiles (-ieee: -O0 instead of -O3)
1753    
1754    checkpoint51q_post
1755    o cd_code:
1756      - moved cd_scheme.F -> cd_code_scheme.F
1757      - separate read_checkpoint from cd_code_ini_vars.F
1758      - separated cd_code part from write_checkpoint
1759      - updated AD_SOURCE, generated .flow
1760      - added CD_CODE_VARS.h to the_main_loop
1761      - Moving cd_code specific store dir.s to pkg/cd_code
1762    o ctrl package totally restructured
1763      - pack/unpack now optional and decoupled from
1764        xx_/adxx_ I/O
1765      - ctrl_pack/unpack cleaned
1766        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1767      - confined inclusion of AD_CONFIG.h to where necessary.
1768    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1769    
1770    checkpoint51p_post
1771    o create initial cd_code package
1772      - WARNING: the initialization of fields within packages
1773        is broken because INI_FIELDS (where READ_CHECKPOINT is
1774        called) is called *before* PACKAGES_INIT_VARIABLES.
1775        This seems to be backwards since
1776        1) its important to initially zero the entire field including
1777           the "halo" region
1778        2) zeroing needs to be done *before* reading pickup info
1779           and the pickup call might or might not happen in any
1780           particular run
1781      - this needs an overhaul for R2
1782    o cleanup verification/*/code/GMREDI_OPTIONS.h
1783    o cleanup testreport
1784    
1785    checkpoint51o_post
1786    o bringing AD-related verif's up to date with genmake2
1787      - carbon/
1788      - global_ocean.90x40x15/
1789      - hs.94.1x64x5/
1790      - (front_relax/ )
1791    o (more) consistent directory structure for AD-related verif.'s
1792    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1793    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1794    o bug fix in find_alpha.F for MDJWF:
1795      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1796        change rho -> rho-rhoConst
1797      - replace call find_rho to find_rhonum
1798    o initialisation of rFlx extended to full array (required by TAF)
1799      and shifted to thermodynamics
1800    o removed PTRACERS.h in ptracers routine
1801    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1802    o Correcting initialisations for fVerU, fVerV.
1803    o helping TAF to recognize dependency on kUp for
1804      fVerU, fVerV
1805    o Replacing delZ by delR in pkg/ctrl/
1806    checkpoint51o_pre
1807    
1808    o undid all of cp51 pending some cleanups and discussion
1809    o added the [#include "AD_CONFIG.h"] statement to all files that need
1810       it for adjoint/tl #defines
1811     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1812     o removed tools/genmake since it no longer works
1813    
1814    checkpoint51n_post
1815    o modifications to make FREEZE flux visible to pkg/kpp
1816      - moved surfaceTendencyTice from pkg/seaice to main code
1817      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1818      - subroutine FREEZE now limits only surface temperature
1819        (this means new output.txt for global_ocean.90x40x15,
1820         global_ocean.cs32x15, and global_with_exf)
1821    o added surface flux output variables to TIMEAVE_STATVARS
1822    
1823    checkpoint51n_pre
1824    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1825    o added [#include "AD_CONFIG.h"] to all files that use the following
1826      defines:
1827      - ALLOW_ADJOINT_RUN
1828      - ALLOW_TANGENTLINEAR_RUN
1829      - ALLOW_ECCO_OPTIMIZATION
1830    
1831    checkpoint51m_post
1832    o incorporating changes to get TAMC/TAF working in genmake2
1833      - added new TAMC/TAF targets to the Makefile
1834      - various cleanups related to package handling
1835      - these changes should have no impact on the forward model
1836    
1837    checkpoint51l_post
1838    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1839     - faster algorithm for cal_addtime.F
1840     - higher precision arithmetic, where needed
1841     - pkg/exf *startdate variables changed from calendar date to
1842       model integration time
1843    
1844    checkpoint51l_pre
1845    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1846    o enable to apply restoring on S & T only in a latitude band.
1847    o update output (external_forcing_surf modif. change truncation errors)
1848       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1849    
1850    checkpoint51k_post
1851    o change default to: useNHMTerms=.FALSE.
1852     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1853       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1854     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1855        exp1, ideal_2D_oce
1856     - change data file of oceanic exp (leave the results unchanged for now)
1857       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1858    o set gravitySign automatically according to the vertical coordinate used
1859      (and change sign: back to "logical" value: +1 when R increases downward)
1860    o added an include barrier to the default CPP_OPTIONS.h and
1861      removed the #include "PACKAGES_CONFIG.h" from it
1862    o fix a bug in mom_fluxform (from chk51j_post)
1863    
1864    checkpoint51j_post
1865    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1866    o adjusted some flow directives (dynamics, thermodynamics)
1867    o added cubed-sphere case to test cost function
1868    o heckpoint_lev?_directives.h now include
1869      pkg-specific directives, whenever those are enabled.
1870    o Moving pkg-specific flow directives to corresponding pkg
1871      Moving pkg-specific differentiation list to corresponding pkg
1872      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1873      ---> conventions are
1874           - pkg_ad.flow
1875           - pkg_ad_diff.list
1876           - pkg_ad_check_lev?_dir.h
1877    
1878    checkpoint51i_post
1879    o merge of the branch-genmake2
1880      - knowingly breaks the older genmake
1881      - automatic generation of all ALLOW_${PKG_NAME} defines
1882      - new testreport supersedes older testscript
1883    o large number of package inclusion and header cleanups
1884    checkpoint51i_pre
1885    
1886    o new output for adjoin of global ocean vector invariant
1887    o fix for checkpoint of thermodynamic seaice and bulk_force
1888    o Steph gchem various cleanups
1889    
1890    checkpoint 51h_pre
1891    o fixed some single quotes
1892    o modify gchem pkg to be more versatile
1893    o modifications to clean up dic pkg
1894    o add pkg/cfc
1895    
1896    checkpoint51g_post
1897    o provide links for ARPACK and ADM*TLM
1898    o start removing verification/vero/
1899    o update AD-related stuff
1900      (in particular some IF-statements in model/src/ routines)
1901    o adding to verification/global_ocean.90x40x15/ adjoint of
1902      vector invariant setup
1903    
1904    checkpoint51f_post
1905    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1906    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1907      of tracer Green's fucntions for ocean inversion project.
1908    
1909    checkpoint51f_pre
1910    o Added on-the-fly spatial interpolation capability
1911        "USE_EXF_INTERPOLATION" to pkg/exf.
1912      - This is a temporary Cartesian-grid hack until
1913        the super-duper ESMF coupler becomes available.
1914      - See verification/global_with_exf/README for usage example.
1915      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1916        flags and modified pkg/seaice accordingly.
1917    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1918        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1919        non-local transport term.
1920    
1921    checkpoint51e_post
1922    o pkg/mom_vecinv:
1923      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1924      - add time-ave diagnostic of vorticity advection.
1925    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1926    o atmospheric geopotential: - include water vapor effect;
1927                                - use p^kappa in p* scaling.
1928    o land pkg: read initial state from files.
1929    o AIM : add stratospheric drag in the upper level
1930    
1931    checkpoint51d_post
1932    o change function ILNBLNK (=> last non-blank char.) to return zero
1933      (instead of the string length) when the string. char is empty
1934    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1935    o modif's to restore TAMC compatibility
1936      - avoid "_d" constructs in PARAMETER declarations
1937      - avoid interrupting lines by comment lines
1938    o Use cluster local disks for purely local I/O
1939      vs. globally visible disks needed for ctrl stuff
1940      (merged from ecco-branch)
1941      - new active_file_loc... and mdsio_..._loc routines
1942      - affected packages: autodiff, ctrl, grdchk, mdsio
1943    
1944    checkpoint51c_post
1945    o introducing integer flag debugLevel
1946      - debLevZero: suppress all output
1947      - debLevA: standard
1948      - debLevB: equivalent to current debugMode=.TRUE.
1949    o introducing pathname variable mdsioLocalDir for mdsio
1950      that can be specified at runtime
1951      (relevant for cluster I/O to local disk)
1952    `
1953    >>>checkpoint51b_post
1954    adjoint of ptracers
1955    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1956    o extended state in checkpoint_lev?, etc.
1957    o alternative ctrl/cost with tr1 or ptracer
1958    o new comlev1_bibj_ptracers
1959    o new ptracers.flow
1960    o made ptracers_forcing same as external_forcing_s
1961    o added verification for adjoint with ptracers
1962      - adm. grdchk fail so far
1963      - tlm. grdchk OK
1964      - checked tapelev/comlev recomputations: OK
1965    <<<checkpoint51b_pre
1966    
1967    checkpoint51a_post
1968    o added code for biogeochemistry package
1969      - new pkgs: dic, gchem
1970      - new subroutine in ptracers
1971    o modify code for biogeo packages
1972      - in model/src and pkg/ptracers
1973    
1974    checkpoint51
1975    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1976      - autodiff, ctrl, exf, grdchk, seaice
1977      kept separate packages
1978      - cost, ecco, obcs
1979    o updating verification/internal_wave, verification/lab_sea
1980      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1981    
1982    checkpoint50i_post
1983    o Preparing next differentiable checkpoint and sync
1984      of MAIN vs. ecco-branch
1985      - 1st step: this one is differentiable
1986      - 2nd step: next(! not this) checkpoint will have updated packages
1987                  from ecco-branch)
1988    
1989    checkpoint50h_post
1990    o new package "land": provide surface BC for AIM.
1991    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1992    o AIM: use true log-P extrapolation for near surface temp (= as in
1993        F.Molteni paper) ; update aim.5l_cs output.
1994    o New variable in PARM03 for more flexible pickups
1995    o somewhat cleaned package initialisation sequence for
1996      ctrl/ cost/ ecco/ in packages_... routines
1997    
1998    checkpoint50g_post
1999    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2000      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2001      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2002        made the default because of faster convergence than ADI
2003    
2004    checkpoint50f_post
2005    o exf totally restructured
2006      - replaced all exf_set_ routines by one generic exf_set_gen.F
2007        and made sure it's still differentiable
2008      - split exf_getffields.F into new exf_bulkformulae.F
2009      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2010      - updated adjoint/makefile and relevant verif. accordingly
2011    
2012    checkpoint50f_pre
2013     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2014          + change Evap over land. (update aim.5l_cs output)
2015     o added missing .cvsignores and made uniform across expts
2016     o changed configuration of tidal_basin_2d expt
2017     o added pkg/debug functions for tracing code in fatal crashes
2018     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2019     o new fn in pkg/monitor to stop model if solution grows too big
2020     o removed lots of single quotes from comments
2021    
2022    checkpoint50e_post
2023    o make KPP work with PTRACERS
2024     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2025       nearly a copy of kpp_transport_s
2026     - there is no analogue to SurfaceTendencyS, so I have to use
2027       gPtr(of the surface layer) instead
2028    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2029    checkpoint50e_pre
2030    
2031    checkpoint50d_post
2032    o change kpp output from multiple-record state files to single-record state
2033      files analogous to write_state.F
2034    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2035      analogous to the cg2d-related output.
2036    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2037      so that writing to internal file fn (with length 512) fails.
2038    checkpoint50d_pre
2039    
2040    checkpoint50c_post
2041    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2042    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2043    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2044    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2045    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2046    
2047    checkpoint50c_pre
2048    Merging from release1_p13:
2049    o bug fix for pkg/seaice dynamic solver
2050    o Added SEAICE_initialHEFF to pkg/seaice
2051    
2052    checkpoint50b_post
2053    o store u*,v* in gU,V instead of in guNm1,gvNm1
2054    o in order to put the momForcing out of the Adams-Bashforth:
2055      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2056      to timestep.F
2057    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2058    o re-generate output for highly sensitive test-exp:
2059       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2060    
2061    checkpoint50b_pre
2062    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2063    o corrected CPP option mismatch in exf_Bulk... functions for case
2064      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2065    
2066    checkpoint50a_post
2067    o Bug fix for merging between c50 and KPP.
2068      ikey was passed from thermodynamics to kpp_calc via
2069      common block rather than being recomputed in kpp_calc,
2070      in contradiction with new key itdkey.
2071      New key ikppkey created, and tamc.h headers updated.
2072    
2073    checkpoint50
2074    - 2nd step of merge with ecco-branch:
2075      merge changes in ecco-branch back into main trunk
2076    - bug fix in find_alpha
2077    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2078    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2079    - merged some sliced AD support routines
2080    
2081    checkpoint49
2082    merged from ecco-branch:
2083    o exf:
2084      - Enable initialisation of forcing fields to constant
2085        (runtime) values.
2086      - in exf_getffields.F
2087        Reduce i-/j-loop to interior domain, discarding overlaps.
2088        That also fixes wrong TAF-key computations for key_1, key_2
2089        with bulf formulae.
2090      - exf_init.F modify #ifdef for exf_init_evap
2091      - exf_getffieldrec.F, ctrl_getrec.F
2092        The following INT-usages are not safe:
2093          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2094          fldcount = int(fldsecs/fldperiod) + 1
2095        and were modified.
2096    o autodiff: checkpoint_lev...
2097      - updated storing for bulk formulae (some arrays were missing)
2098      - added state for seaice package
2099      - synchronized with main branch
2100    o DIVA:
2101      Modif.s in
2102      - the_main_loop.F
2103      - the_model_main.F
2104      and added cost_final_restore.F cost_final_store.F
2105      o With these changes, it is possible to fully separate
2106        the first forward run to compute the cost function (mdthe_main_loop)
2107        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2108        into separate model executions.
2109        This enables better tuning of DIVA to given queue sizes.
2110      o Loss of cost function value in consecutive DIVA runs is
2111        fixed by storing to 'costfinal' file.
2112      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2113        beginning/end of adjoint integration is accounted for.
2114      The current changes apply to TAF-1.4.26.
2115      TAF has one remaining bug, requiring one manual change
2116      (see MITgcm manual).
2117    o cal: synchronized between MAIN and ecco-branch
2118    
2119    checkpoint48i_post
2120    o Changes to restore differentiability of code w.r.t. previous tag
2121      (mostly adding new routines to make list and replacing
2122      pressure by totPhiHyd).
2123    o Updated and merged grdchk package
2124      - has both ADM and TLM checks
2125      - works for single- and multi-proc.
2126      - output cleaned
2127      - worked successfully for parallel DIVA
2128    o genmake:
2129      - Adding -platform=SP4
2130      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2131    o Modif. for DIVA:
2132      ctrl_unpack should not be called in intermediate DIVA interval.
2133      (similar thing would apply for active files such as
2134      tbar, sbar, psbar, which should not be reinitialised;
2135      only relevant for ecco-branch)
2136    
2137    checkpoint48h_post
2138    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2139    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2140    o Added SEAICE_initialHEFF to pkg/seaice
2141    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2142    
2143    checkpoint48g_post
2144    --- EOS:
2145    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2146      store total Potential in totPhyHyd for diagnostics & EOS.
2147    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2148    --- Pressure/geopotential gradient:
2149    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2150    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2151      ( changes results of global_ocean_pressure )
2152    o NLFS + z-coord.: add eta*Rho' contribution.
2153    o accurate phiHyd when using interface-W at the middle between 2 centers
2154     ( changes results of ideal_2D_oce )
2155    o includes r* 2nd term in potential gradient.
2156    
2157    checkpoint48f_post
2158    Merging from release1_p12:
2159    o Modifications for using pkg/exf with pkg/seaice
2160      - improved description of the various forcing configurations
2161      - added basic radiation bulk formulae to pkg/exf
2162      - units/sign fix for evap computation in exf_getffields.F
2163      - updated verification/global_with_exf/results/output.txt
2164    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2165      (SBO) core products, including oceanic mass, center-of-mass,
2166      angular, and bottom pressure (see pkg/sbo/README.sbo).
2167    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2168      to avoid negative values in shallow regions.
2169      - updated verification/natl_box/results/output.txt
2170      - updated verification/lab_sea/results/output.txt
2171    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2172    o Added useSingleCpuIO option (see PARAMS.h).
2173    o Updated useSingleCpuIO option in mdsio_writefield.F to
2174      work with multi-field files, e.g., for single-file pickup.
2175    o pkg/seaice:
2176      - bug fix in growth.F: QNET for no shortwave case
2177      - added HeffFile for specifying initial sea-ice thickness
2178      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2179    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2180      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2181    o pkg/seaice:
2182      - adjoint-friendly modifications
2183      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2184    
2185    checkpoint48e_post
2186    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2187    o dynamics: change definition of computational domain & adapt mom_fluxform
2188      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2189    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2190        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2191        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2192        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2193        inverted_barometer solid-body.cs-32x32x1
2194      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2195    
2196    checkpoint48d_post
2197    o in preparation for r*:
2198     a) use pre-computed gradient of hydrostatic potential:
2199        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2200     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2201        => affects results of glob_oce_pressure (different truncation error)  
2202      update output.txt of ideal_2D_oce & global_ocean_pressure
2203    
2204    checkpoint48d_pre
2205    o in preparation for r*:
2206      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2207      pass the 2 comp. of the grad. as arguments to momentum S/R.
2208      but for the moment, only used if it does not change the results.
2209    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2210    
2211    checkpoint48c_post
2212    Modifications in treatment of initial flux forcing controls
2213    to avoid extra storing of flux fields.
2214    
2215    checkpoint48c_pre
2216    o Added tidal_basin_2d experiment (currently 1D!)
2217    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2218    
2219    checkpoint48b_post
2220    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2221     (modification to pressure gradient not yet implemented)
2222    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2223      (for U & V) that are used for vertical advection of momentum.
2224    
2225    checkpoint48a_post
2226    o In preparation for r*, use temp. array to compute vertical transport
2227       in flux-form momentum pkg. => change results of few test-exp.
2228      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2229                        lab_sea, natl_box & plume_on_slope
2230    
2231    checkpoint48
2232    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2233    
2234    checkpoint47j_post
2235    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2236    o moved adexch from forward_step to addummy_in_stepping
2237    o added exch in ctrl_map_...
2238    o aveFreq.=0. at end of cost_final to avoid overwrite in
2239      reverse checkpointing loop
2240    o Yet more changes in gmredi:
2241      * adgmredi_calc_tensor
2242        avoiding all recomputation of gmredi_slope_limit
2243      * adgmredi_x/y/rtransport
2244        added flag for excessive storing to avoid recomp. of
2245        u/v/rtans, dTdx/y/z
2246        -> this is not really necessary and very memory-consuming
2247      * adgmredi_slope_psi:
2248        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2249      * gmredi_slope_limit
2250        re-activated full calculation of taperfct for case 'ac02'
2251    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2252    
2253    checkpoint47i_post
2254    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2255    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2256      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2257    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2258    o gmredi: fix few bugs.
2259    
2260    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2261    This will be a good checkpoint to plug into the ecco-branch.
2262    o few modif.'s to get latest version adjointed
2263      (mainly kick out code in ini_linear_phisurf)
2264    o modif's to run adjoint with exactConserv
2265    o case GM_BOLUS_ADVEC should be cleaned
2266      S/R gmredi_slope_psi should be cleaned
2267    o verification/carbon now has exactConserv=.TRUE.
2268    
2269    checkpoint47g_post
2270    o time-average AIM output: becomes independent from statvars time-average
2271      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2272    o After TAF bug fix:
2273      Tested adjoint of gmredi package.
2274      Tests were done with checkpoint47 rather than with latest
2275      checkpoint47f_post since the latter is broken for the adjoint
2276      verification/carbon/ contains both ADM and TLM gradient checks.
2277    Here they are, before they get changed/lost/stolen.
2278    Mostly modif.'s to fix numerical sensitivities.
2279    Gradient checks OK for
2280    - GM_taper_scheme:
2281      * clipping
2282      * ac02
2283      * linear
2284      * glw91
2285      * dm95
2286      * ldd97
2287    - GMREDI_OPTIONS:
2288      * GM_VISBECK_VARIABLE_K
2289      * GM_NON_UNITY_DIAGONAL
2290      * GM_EXTRA_DIAGONAL
2291      * GM_BOLUS_ADVEC
2292    in conjunction with data.gmredi parameters to be checked in
2293    in a few minutes under verification/carbon/code/
2294    
2295    checkpoint47f_post
2296    Merging from release1_p10:
2297    o modifications for using pkg/exf with pkg/seaice
2298      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2299        and SEAICE_EXTERNAL_FLUXES
2300      - pkg/exf CPP options EXF_READ_EVAP and
2301        EXF_NO_BULK_COMPUTATIONS
2302      - usage examples are Experiments 8 and 9 in
2303        verification/lab_sea/README
2304      - verification/lab_sea default experiment now uses
2305        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2306    
2307    checkpoint47e_post
2308    o created a tag prior to creating a branch
2309    
2310    checkpoint47d_post
2311    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2312      at the bottom boundary had an erroneous half slip boundary condition
2313    o added bottom drag and no slip boundary condition capabilities to
2314      oceanic pressure coordinates code
2315    o added new verification experiment global_ocean_pressure, this experiment is
2316      also described in the tutorial section of the manual
2317    checkpoint47d_pre
2318    
2319    checkpoint47c_post
2320    o Added a verification experiment for a global cubed-sphere ocean run
2321      -  verification/global_ocean.cubed32x32x30
2322      -  uses pkg/therm_seaice and pkg/bulk_forcing
2323    
2324    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2325    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2326      when using P-coordinate; only implemented for atmospheric config.
2327    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2328      NOTES: requires option NONLIN_FRSURF to be "#define".
2329    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2330    
2331    checkpoint47b_post
2332    Merging from release1_p9:
2333    o pkg/seaice
2334      - removed GOTO's and added taf directives
2335      - double precision constants to reduce the g77 (Linux)
2336        to F77 (SGI) differences reported in release1_p8
2337    o tools/genmake
2338      - added SGI options
2339    o verification/testscript
2340      - updated to that of checkpoint47a_post
2341    o verification/global_ocean.90x40x15/input/eedata
2342      - modified for SGI f77 compatibility
2343    o verification/lab_sea
2344      - added description of sea-ice model
2345      - added missing matlab routines
2346      - added test of thermodynamics parallelization
2347    
2348    checkpoint47a_post
2349    o new pkg: aim_v23
2350     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2351       for now, keep the same surface forcing as before.
2352     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2353     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2354     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2355    o add diagnostic of surface correction term in monitor output
2356    
2357    o bulk_force and therm_seaice
2358    - Two packages:  bulk_force (Bulk forcing)
2359      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2360    - Earlier integration from Stephaine Dutkiewicz
2361      and Patrick Heimbach.
2362    - Two ifdef statements for compile time,
2363       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2364    
2365    checkpoint47
2366    differentiable version of checkpoint46n_post
2367    o bug fix in quasihydrostaticterms
2368    o * "clean" adjoint code (in terms of extensive recomputations)
2369        can now be obtained for all GMREDI options (i.e. for
2370        - GM_VISBECK_VARIABLE_K
2371        - GM_NON_UNITY_DIAGONAL
2372        - GM_EXTRA_DIAGONAL
2373        - GM_BOLUS_ADVEC )
2374      * However, wrong gradient check problem remains unsolved.
2375      * New CPP options have been introduced for different
2376        tapering schemes
2377    o external_fields_load now part of differentiation list
2378    o pressure needs multiple storing;
2379      would be nice to have store_pressure at beginning or
2380      end of forward_step, e.g. by having phiHyd global (5-dim.)
2381      (NB: pressure is needed for certain cases in find_rho,
2382      which is also invoked through convective_adjustment).
2383    o recomputations in find_rho for cases
2384     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2385    o #define ATMOSPHERIC_LOADING should be differentiable
2386    o ini_forcing shifted to begining of initialise_varia
2387    o Incorporating QNVS line search routines into MITgcm
2388      (this is separate code, and therefore not under pkg)
2389      lsopt/, optim/
2390    o Updated verification/carbon/
2391      - #define GM_VISBECK_VARIABLE_K
2392      - GM_taper_scheme    = 'ldd97'    
2393    
2394    checkpoint46n_post
2395    Merging from release1_p8:
2396    o verification/natl_box:
2397      updating new external_fields_load routine
2398    o New package: pkg/seaice
2399      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2400      The sea-ice code is based on Hibler (1979-1980).
2401      Two sea-ice dynamic solvers, ADI and LSR, are included.
2402      In addition to computing prognostic sea-ice variables and diagnosing
2403      the forcing/external data fields that drive the ocean model,
2404      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2405      The implied surface heat flux is then stored in variable
2406      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2407      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2408      non-local transport term.  Because this call precedes model
2409      thermodynamics, temperature under sea-ice may not be "exactly" at
2410      the freezing point by the time theta is dumped or time-averaged.
2411      N.B.: fairly large differences in accuracy occur across
2412            different platforms/compilers; comparison between
2413            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2414            generated output gives:
2415       T           S           U           V
2416      C D M    c        m  s        m  s        m  s        m  s
2417      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2418      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2419      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2420    
2421      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2422    o GAD:
2423      - generated new common blocks to account for call of
2424        same gad routines with differing traceridentities
2425        (needed to modify tracerIdentity indices in GAD.h)
2426      - generated separate common blocks for case useCubedSphereExchange
2427        (Department of Futurology)
2428      - parameter lists to gmredi_?transport: added tracerIdentity
2429      - added new key indices to tamc.h
2430    o external_fields_load:
2431      - added this routine to TAF list
2432      - needed to make some common blocks global and additional storing
2433        along the same lines as exf package (checkpoint_lev?_directives.h)
2434    o exf:
2435      updated external forcing package
2436      - bug fixes carried over from ecco-branch
2437        (missing OBCS_OPTIONS.h in two routines)
2438      - enable easy to use "no forcing".
2439      - added exf I/O for atmospheric loading
2440      - added exf I/O for runoff data
2441      - transfered scaling between exf <-> MITgcm to exf namelist
2442    o Adding new verification experiment global_with_exf.
2443      This verification experiment is almost identical to the
2444      global_ocean.90x40x15 experiment, except that it uses
2445      the exf (and cal) package instead of the
2446      external_fields_load routine (cf README file).
2447    
2448    checkpoint46m_post
2449    o modified testscript to return -- when there are no lines of "%MON" output
2450    o added new flag "quasiHydrostatic" for QH mode
2451      and new routine quasihydrostaticterms()
2452    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2453      New routine: mom_u_coriolis_nh()
2454    o fixed sign of non-hydrostatic metric terms in u and v equations.
2455      Depend on correct sign of gravitySign.
2456    o added work.pc* to .cvsignore in aim directories using ifc
2457    o introduced flag for controllin non-hydrostatic metric terms
2458    o removed gravitySign from PARM04
2459    o switched to g77/ifc from pgf77 in aim experiments
2460    
2461    checkpoint46l_post
2462    o made convective adjustment work with pressure coordinates:
2463     - changed the direction of k-loop in convective_adjustment.F for the
2464       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2465     - adjusted the reference pressure k-index in convective_adjustment.F
2466     - adjusted the convection condition in convect.F (in analogy to
2467       calc_ivdc.F)
2468     - convective_adjustment no longer computes anything on the halos
2469     - removed the warnings about negative salinity from find_rho.F and
2470       find_alpha.F; instead the new routine look_for_neg_salinity, called
2471       at the beginning of find_rho, find_alpha, and find_beta, does a
2472       check of the entire slice, if CPP-option
2473       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2474    checkpoint46l_pre
2475    
2476    checkpoint46k_post
2477    o fixed the verification/global_ocean.90x40x15 experiment:
2478     - new bathymetry (the world according to A., JMC, and M.)
2479     - new initial fields and forcing fields (*.bin files)
2480     - new POLY3.COEFFS (for the next release one should switch to a full
2481       equation of state: JMD95P or MDJWF)
2482     - fixed several errors and redundancies in the data file
2483     - experiment uses looped cells
2484     - added matlab directory with diagnostic scripts for plotting of output
2485    
2486    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2487     - read AIM physics parameters from a file (data.aimphys)
2488     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2489    
2490    checkpoint46j_post
2491    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2492    o move wVel computation at the end of the time step, in S/R integr_continuity
2493    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2494    o update timeave pkg for wVel diagnostic.
2495    checkpoint46j_pre
2496    
2497    checkpoint46i_post
2498    o Clean up AIM package (and keep the results unchanged):
2499      include CPP_OPTION and use IMPLICT NONE in all routines ;
2500      declare all the variables _RL ; use _d 0 for all numerical constants.
2501      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2502    
2503    checkpoint46h_post
2504    o cleaned up the use of rhoNil and rhoConst.
2505      - rhoNil should only appear in the LINEAR equation of state, everywhere
2506        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2507        and the dynamical equations are all divided by rhoConst
2508    o introduced new parameter rhoConstFresh, a reference density of fresh
2509      water, to remove the fresh water flux's dependence on rhoNil. The default
2510      value is 999.8 kg/m^3
2511    o cleanup up external_forcing.F and external_forcing_surf.F
2512      - can now be used by both OCEANIC and OCEANICP
2513    checkpoint46h_pre
2514    
2515     Added code to convert surface volume flux (fresh water) into
2516     a mass flux when using P coordinates in the ocean (OCEANICP).
2517     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2518    
2519    checkpoint46g_post
2520    o Include a new diagnostic variable phiHydLow for the ocean model
2521      - in z-coordinates, it is the bottom pressure anomaly
2522      - in p-coordinates, it is the sea surface elevation
2523      - in both cases, these variable have global drift, reflecting the mass
2524        drift in z-coordinates and the volume drift in p-coordinates
2525      - included time averaging for phiHydLow, be aware of the drift!
2526    o depth-dependent computation of Bo_surf for pressure coordinates
2527      in the ocean (buoyancyRelation='OCEANICP')
2528      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2529        Theta, Salinity, and Pressure in the parameter list. This routine is
2530        presently contained in find_rho.F. This routine does not give the
2531        correct density for 'POLY3', which would be a z-dependent reference
2532        density.
2533    o cleaned up find_rho
2534      - removed obsolete 'eqn' from the parameter list.
2535    o added two new verification experiments: gop and goz
2536      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2537    checkpoint46g_pre
2538    
2539    checkpoint46f_post
2540    o Enable tangent linear (forward mode) gradient checks:
2541      - extended active file handling to g_... files
2542      - added TANGENT_SIMULATION to theSimulationMode
2543      - extended grdchk package accordingly
2544    o added tangent linear setup in verification/carbon/code_ftl
2545    o added adjoint setup in verification/front_relax/code_ad
2546    
2547    checkpoint46e_post
2548    o Added new equation of state -> MDJWF
2549      - EOS of McDougall et al., 2002, JAOT, submitted
2550      - caveat: the equation of state is only valid for a smaller (more
2551        realistic?) range of values than JMD95P/Z and UNESCO
2552      - added masks to the calculation of pressure in store_pressure
2553      - added more check values for density in check_eos (ini_eos.F), some of
2554        the old check values are out of the range of the MDJWF-eos, so don't
2555        expect perfect matches for those
2556    checkpoint46e_pre
2557    
2558    checkpoint46d_post
2559    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2560      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2561      case of pressure coordinates. eosType='JMD95Z' in
2562      combination with buoyancyRelation='OCEANICP' now causes an error.
2563    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2564      in find_alpha/beta.
2565    checkpoint46d_pre
2566    
2567    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2568      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2569    
2570    checkpoint46c_post
2571    o Changes necessary for ocean in p-coordinates
2572     -  Added new buoyancy relation = 'OCEANICP'
2573     -  Added new parameters = gravitySign (this used to be contained inside
2574        the factor dRdZ which I added when we first switched to R coordinates).
2575     X GM/Redi is not compatible (yet)
2576     X bottom drag and no-slip need to be debugged.
2577    checkpoint46c_pre
2578    
2579    checkpoint46b_post
2580    o Added new equation of state -> JMD95Z and JMD95P
2581      - EOS of Jackett and McDougall, 1995, JAOT
2582      - moved all EOS parameters into EOS.h
2583      - new routines ini_eos.F, store_pressure.F
2584    o Added UNESCO EOS, but not recommended because it requires
2585      in-situ temperature (see JMD95)
2586    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2587      unesco.f to be used with POLY3
2588    checkpoint46b_pre
2589    
2590    checkpoint46a_post
2591    o Added (atmospheric) pressure loading
2592      - new field in FFIELDS.h, etc...
2593      - new cpp flag ATMOSPHERIC_LOADING
2594    o Changed hFacC to _hFacC in calc_phi_hyd.F
2595    o Added SHORTWAVE_HEATING to some files for consistency
2596    checkpoint46a_pre
2597    
2598    checkpoint46
2599    further merges from release1_p5
2600    o new ctrl package
2601      - adopted from ECCO environment to enable optimization
2602      - added Eliassen Palm fluxes to controls
2603    o added Eliassen Palm flux controls to gradient check package
2604    o cost package
2605      - Compatible with new ctrl package
2606      - added Eliassen Palm cost hooks
2607      - modif's of existing cost functions
2608    o Adjoint-related bug fixes in kpp:
2609      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2610      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2611    o autodiff package
2612      - flow directives:
2613        + new for S/R do_the_model_io
2614        + enhanced for S/R checkpoint
2615        + new gmredi.flow
2616      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2617        disable adcommon.h/g_common.h by default.
2618      - fixed problem for adjoint of global_max
2619    o modified verification/carbon/
2620    o New setup for adjoint of global_ocean
2621    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2622    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2623    o incorporated hooks for sponge layer code (external_forcing.F)
2624    
2625    checkpoint45d_post
2626    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2627    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2628      (affects plume_on_slope "cg2d" output)
2629    o add new parameter deltaTfreesurf for free-surface time stepping
2630    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2631    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2632    o change phiMin in exp1 (to agree with documentation)
2633    o add new flags:
2634     - T,S forcing inside/outside Adams-Bashforth
2635     - turn off temp,salt advection and/or forcing
2636     - for each tracer, define internal flag for multiDimAdvection & A-B
2637    o monitor: change definition of KE to check conservation of Energy
2638    
2639    checkpoint45c_post
2640    o Removed f90 comments ("!")
2641    o Modified initialisations to enable exf package for MITgcm
2642      (without invoking ECCO_PACKAGE).
2643    o modifications to gradient check package (Martin Losch)
2644      - enable centered differences
2645      - modified format of standard output
2646    
2647    checkpoint45b_post
2648    o cleaned exchange calls in cg2d
2649    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2650    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2651      to configure barotropic setup (Martin Losch)
2652    o moved some initialisations within bi,bj loop in dynamics
2653      (TAF flow dependency)
2654    o in initialise_varia, moved call packages_init_variables
2655      before convective_adjustment_init
2656      (corresponding adjustment of TAF tape initialisation).
2657    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2658    
2659    checkpoint45a_post
2660    o compute Rho over the whole domain (extend iMin,jMin indices)
2661    o specific exchange for X-slice domain (case Ny=1)
2662    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2663    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2664    
2665    checkpoint44h_post = checkpoint45
2666    o Fix to restore differentiability:
2667      place at which packages_init_variables is called in
2668      initialise_varia is crucial for reverse control flow.
2669    o modifications in GMRedi to enable stable adjoint
2670      (corresponding modif's in thermodynamics, dynamics)
2671    o added missing hook for sponge layer code in external_forcing
2672    o modified test cost functions
2673    o storing in gad_advection (plus removal of write(0,*)!
2674    o missing headers TR1.h added in convective_adjustment routines
2675    o errorMessageUnit set non-equal zero in eeboot
2676      (conflict on some platforms, e.g. IBM SP3)
2677    o modified carbon verif.
2678    
2679    checkpoint44h_pre
2680    o vertical grid option: allow to put the Interface at the middle between
2681      2 cell-centers ; replace delZ in pkg/kpp by drF.
2682    o GM Advective form: Tracers are advected using the residual transport (=
2683      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2684    
2685    checkpoint44g_post
2686    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2687      results) ; ifdef missing in thermodynamics.F
2688    
2689    checkpoint44f_pre,checkpoint44f_post
2690    o added PTRACERS package
2691      This allows an arbitrary number of passive tracers to be integrated
2692      forward simultaneously with the dynamicaly model.
2693      + Implemented so far:
2694        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2695        - I/O and checkpointing
2696        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2697      + Not implemented so far:
2698        - KPP
2699        - OBCS
2700      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2701        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2702        line in data.pkg.
2703      + This package is disabled by default since it increases storage.
2704    
2705    
2706    o testscript: added -cleanup option
2707    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2708                 b) enable to filter 2D fields.
2709    
2710    checkpoint44e_pre,post
2711    o re-wrote convective adjustment to use pre-calculated weights
2712      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2713      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2714      Original calls to convect() still in place.
2715    
2716    chkpt44d_pre,post
2717    o added missing EXCLUDE_MONITOR flags
2718    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2719      (incompatible typ in MIN/MAX expressions caused problems
2720      on IBM SP3)
2721    o in genmake added variable MAKEDEPEND
2722      plus resetting for case SunOS
2723    o added timer_stats.c routine for IBM SP3
2724    o removed variables in dynamics
2725    !!! I forgot to create tag chkpt44d_pre !!!
2726    !!! But chkpt44d_pre = chkpt44c_post    !!!
2727    
2728    o real fresh water flux implemented with non-linear free-surface.
2729    
2730    chkpt44c_pre,post
2731    o few fix (mask in shap_s2, EmPmR in external_field_load,
2732      USE_NATURAL_BCS in solve_for_P);
2733    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2734    
2735    checkpoint44b_pre/_post
2736    o merge of relevant stuff from the ecco-branch:
2737      - genmake: removed $S64 overwrite for case SunOS
2738      - pkg/exf: update and corrections for field swapping and obcs
2739      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2740                  harmonized between ECCO and MITgcm
2741      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2742                      updated checkpointing_lev... lists for obcs
2743      - model/src: minor changes in forward_step, plot_field
2744                   added directive for divided adjoint in the_main_loop
2745      - pkg/mdsio: added mdsio_gl_slice
2746    
2747    o check parameters & config (chkpt44a_pre,post)
2748    o OBC and NonLin_FrSurf.
2749    
2750    checkpoint44
2751    o fix bug in mom_vi_del2uv
2752    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2753    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2754    o update AIM experiments (NCEP input files)
2755    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2756    o added some stuff for AD
2757    
2758    checkpoint43
2759    o added two new advection tests
2760    o added global 4x4 degree ocean test
2761    o added test of H&S94 with free surface on cube
2762    o some final mods for gradient check, adjoint,...
2763    
2764    checkpoint42
2765      Fixed AD-related problems:
2766    o Store directives up-to-date with re-arranged Adams-Bashforth
2767      (mainly thermodynamics.F)
2768    o New store directives for multi-dim. advection schemes
2769      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2770      * new common block and key passkey
2771      (mainly gad_advection.F)
2772    o Modified store directives for split of dynamics/thermodynamics
2773      for the case ALLOW_KPP
2774    o Cleaned argument list for timestep_tracer.F
2775    
2776    checkpoint41
2777    o re-formatted/added comments in prologues of key subroutines
2778      to work with protex
2779    
2780    checkpoint40
2781    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2782    o added FLT (floats) package from Arne along with demo. experiment
2783    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2784      implementation of forward-in-time forcing terms
2785    o more mods for non-linear free-surface including new variable
2786    o modified multi-dim method to work on cube
2787    o bug fix in KPP (from DM)
2788    
2789    checkpoint40pre9
2790    o added DST advection schemes
2791    o fix MPI bug on SGI's
2792    o modifications for non-linear free-surface
2793    o fixed conditionals for fixed flow/passive tracer only mode
2794    o added tension/strain form of stress tensor
2795    o changes to commenting of arguments for TAF/TAMC
2796    o added/updated many matlab scripts
2797    o added multi-dimensional advection method for tracers
2798      
2799    checkpoint40pre8
2800    o new package rw/
2801      Added method for dumping intermediate local arrays:
2802      mdsio_writetile - same as mdsio_writefield except works from inside
2803                        bi,bj loop
2804      mdsio_writelocal - same as mdsio_writetile except works for local
2805                         arrays
2806      write_local_r? - higher-level wrapper for mdsio_writelocal
2807      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2808      Example given at end of mom_vecinv.F that dumps some local arrays.
2809    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2810      control flux-form versus vector invariant code.
2811      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2812      or genmake -DISABLE ...
2813    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2814      (additional storing is now needed for case vecinv;
2815      currently nothing implemented to switch this storing off
2816      in case fluxform is used since no CPP flag available).
2817    
2818    checkpoint40pre7
2819    o bug fix in dynamics.F
2820      calc_viscosity called before k=1,Nr loop.
2821    o added some #ifdef's ALLOW_PASSIVE_TRACER
2822    o cleaned initialisations in ctrl_map_ini
2823      related to TAF
2824    
2825    checkpoint40pre6
2826    o split dynamics into thermodynamics & dynamics
2827    o corresponding split of calc_diffusivity into
2828      calc_diffusivity, calc_viscosity
2829      (kpp_calc_diff, kpp_calc_visc).
2830    o Added diffkr, kapgm to control variables
2831    o bug fix in gmredi_slope_limit for ldd97
2832    
2833    checkpoint40pre5
2834    o proper initialization of Adams-Bashforth time stepping
2835      + uses forward step for very first step of model (iter=0)
2836    o re-generated *all* output since almost all output is modified by this
2837      change (sorry but we've been putting this one off for about 2 years)
2838      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2839        *not* regenerated since they are already out of date and I don't
2840        want to create the impression that they are suddenly working.
2841    o removed KAP stuff for DEC's
2842    o modified/added many .cvsignore files in */code and */input
2843    o added new expt "solid-body.cs-32x32x1"
2844      + this uses an alternative form of ini_curvilinear_grid.F which
2845        is not necessarily any better than the current one...
2846    
2847    checkpoint40pre4
2848    o added re-initialisations of utrans,vtrans,rtrans in
2849      calc_common_factors which are crucial for TAF.
2850    o extended iMin,jMin range for calc_common_factors,
2851      calc_diffusivity
2852    o added option ALLOW_PASSIVE_TRACER
2853    o a few minor updates and fixes
2854    
2855    checkpoint40pre3
2856    o created calc_gtr1.F for gad package
2857    o split the_main_loop and re-introduced forward_step
2858    o some recomputations of nIter0 for TAMC
2859    
2860    checkpoint40pre2
2861    o Updated to latest branch of AJA, JMC
2862    o Added gradient check package
2863    o Added routines for passive tracer handling
2864    o Added carbon sequestration sensitivity experiment
2865    
2866    checkpoint39
2867     o Modifications and fixes to support TAMC
2868       (mainly missing or wrong directives)
2869     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2870       in addummy_in_stepping
2871     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2872     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2873     o Included following packages:
2874       cal: calendar
2875       exf: external forcing
2876       ecco: essential routines to control use of cal, exf
2877             (NB: this is not the full ECCO environment)
2878     o disabled some packages by default in genmake
2879    
2880    checkpoint38
2881     o see notes_c37_adj.txt
2882     o corrected wrong layer index in external_forcing_t
2883     o replaced the_main_loop/forward_step by the_main_loop
2884     o removed forceoutput from write_state
2885       (replaced criteria for initial/final state)
2886     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2887    
2888    checkpoint37
2889     o mdsio.F routine split and packaged in pkg/mdsio
2890       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2891        used unless genmake -disable=mdsio)
2892     o allow a more precise surface-geopotential gradient for the atmosphere
2893       taking into account the change in space of Alpha (=1/rho) at the surface.
2894     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2895       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2896     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2897       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2898       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2899     o Time-Average diagnostics defined as a pseudo package "timeave".
2900     o pickup files : old pickup (before c35) did not work with new code (c35
2901       and after) unless activating 2 commented lines in initialise-varia.
2902     o Non-Hydrostatic pickup file Pb fixed.
2903     o bug with Rigid-lid version (since c35) fixed.  
2904    
2905    checkpoint36
2906     o implement Crank-Nickelson barotropic time-stepping
2907     o recover Time-Average diagnostics
2908     o fix Pb in checkpoint (PR#19)
2909     o AIM become a standard package ; clean unused CPP_kees
2910    
2911    checkpoint35
2912     o subtantial rewrite of dynamics.f
2913     o allows staggered time-stepping
2914     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2915     o added bottom drag (linear + quadratic)
2916    
2917    checkpoint34
2918     o Modified exchange routines for correct reverse simulation.
2919     o Added verification output to comply with bug fix in impldiff.F
2920       as of c33 (exp2, natl_box).
2921     o Corrected store directives in dynamics.F
2922     o Corrected array boundaries in impldiff.F
2923     o Corrected array dimensions in gmredi.
2924       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2925     o Added routine GLOBAL_SUM_INT to global_sum.F
2926     o Added mdsio_gl.F for ECCO purposes.
2927    
2928  checkpoint33  checkpoint33
2929   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
2930   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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