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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.762 by jmc, Sat Dec 30 22:15:37 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    checkpoint58t_post
8    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
9    o pkg/mdsio:
10     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
11       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
12       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
13     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
14     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
15       either MDS_READ_FIELD or MDS_WRITE_FIELD )
16     - new S/R (to replace MDSWRITEMETA), which allows to write more
17       informations (variable names, time ...) to meta files.
18     - modify rdmds.m to give back the meta file content.
19    o pkg/diagnostics: change vertical interpolation to be safer, and more
20       flexible (define p-levels to interpolate to in data.diagnostics);
21      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
22       diagnostic pointer.
23    o pkg/seaice: more cleaning up of seaice_growth, added many comments
24    o pkg/exf: put runoff0 and runoff into the appropriate common block
25    o fix multi-category seaice:
26     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
27       SEAICE_MULTICATEGORY
28     - fix short wave heat flux
29    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
30       and allow to use EVP solver. Change forward lab_sea: test both EVP
31       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
32    o Initial check-in of lab_sea adjoint
33      (very similar to natl_box_adjoint/code_seaice)
34      * used C-grid and EVP solver
35      * used KPP, GM/Redi
36      * uses inAdExact=.TRUE.
37      * gradient checks fail for both ADM and TLM
38        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
39        f.d. gradients actually seem more problematic than ADM, TLM gradients;
40        issue is related to forward mismatch between g77 an ifort
41    o pkg/seaice: overhaul of thermodynamics
42     - growth.F and groatb.F are replaced by new routine seaice_growth.F
43     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
44     - move a few global fields out of SEAICE.h into seaice_growth.F and
45       make them 2D (FICE/QNETO/ ...)
46     - remove FO (it is the same as QNETO)
47     - introduce a few local fields to avoid modifying external fields such
48       as atemp, etc.
49    
50    checkpoint58s_post
51    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
52      changed exf_set_gen.F so that
53        genperiod=0 means input file is one time-constant field and
54        genperiod=-12 means input file contains 12 monthly means
55    o CG2D: use pre-computed solver main-diagonal (stored in common block);
56      this affects truncation error ; generate new output file for exp. which
57      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
58        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
59        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
60        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
61        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
62        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
63    o start implementation of deep-atmosphere and anelastic formulation
64    o verification: remove 2nd copy of input files and use script "prepare_run"
65      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
66    o mom_common/vecinv/fluxform: fix a few initialisation isssues
67    o profiles: fix for multithreaded case
68    
69    o diagnostics: rename few diags:
70      s/'PRESSURE'/'RCENTER '/g
71      s/'TICE    '/'oceFreez'/g
72      s/'TAUX    '/'oceTAUX '/g
73      s/'TAUY    '/'oceTAUY '/g
74      s/'SWFLUX  '/'oceQsw  '/g
75      s/DIFx/DFxE/g
76      s/DIFy/DFyE/g
77      and add few ocean-forcing diagnostics:
78      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
79    o modifications to pkg/seaice/growth.F and budget.F, which change results of
80      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
81      as actual snow thickness.  It now refers everywhere to effective snow
82      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
83    
84    checkpoint58r_post
85    o modifications to pkg/seaice/growth.F, which change results of
86      lab_sea experiment: fixes pertain to melting snow over open water, to
87      masking EVAP under sea ice, and to using the correct AREA variable for
88      computations of EVAP, PRECIP, HSNOW, and GHEFF
89    o add ability to read bathy, salt, and theta using MNC (off by def)
90    o add flooding algorithm and advection of HSNOW for pkg/seaice;
91      both are turned off by default and do no change any results
92    o seaice advection with pkg/thsice: a step toward the use of non-linear
93      advection scheme, but #ifdef or commented out for now (requires more EXCH).
94    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
95      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
96      in natl_box (affects results @ truncation level: update output.txt)
97    o multi-threading and IO:
98      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
99      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
100        (needed to work with SingleCpuIO): tested in all verif. exp.
101    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
102      affects the results (but none of the verification test uses this scheme).
103    o Adding some pkg/diagnostics capability to pkg/seaice
104      (will certainly be subject to changes)
105    o ctrl: adding new control variables:
106      lwflux, lwdown, evap, snowprecip, apressure, runoff
107    
108    checkpoint58q_post
109    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
110      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
111      high_res_cube configuration by 4% on Columbia.
112    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
113      add (in global_with_exf/code) a version of EXF_INTERP_READ without
114      dynamical allocation (seems to work in multi-threaded).
115    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
116      single CPU io) so that TAF does not have to see EESUPPORT.h
117    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
118    
119    checkpoint58p_post
120    o obcs: stop if obcs is used with useCDscheme = .true.
121    o shelfice:
122     - fix a sign error so that no slip at shelfice interface works
123     - remove stop for combination non-hydrostatic code and shelfice. That does
124       not mean, that the results are correct, but at least they are numerically
125       stable
126    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
127    o added adjoint exch routined for all exch*3d* routines
128      and updated flow directives
129    
130    checkpoint58o_post
131    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
132      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
133    o change controling S/R for writing pickup file (new S/R do_write_pickup)
134      and clean-up reading/writing of pickup files.
135    o fix local version of read/write pickup (NH part) in rotating_tank/code
136    o simplify EXCH interface:
137     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
138     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
139    o added the regrid package
140    o shelfice:
141     - add a simple boundary layer scheme to reduce noise
142     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
143    
144    checkpoint58n_post
145    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
146       local variable (not in common block).
147    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
148      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
149      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
150        to work with SingleCpuIO.
151    o add "_d 0" to real constant of pkg/cfc subroutines ;
152       update exp. cfc_exemple & tutorial_cfc_offline output files.
153    o multi-threading and IO:
154      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
155        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
156      - barrier before and after reading.
157      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
158      - avoid using MDS_WRITELOCAL for LAND pkg output.
159      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
160        common-block variables ; Allows multi-threading with master-thread IO.
161    o change default MAX_NO_THREADS from 32 to 4 ;
162      and stop cleanly when MAX_NO_THREADS is too small.
163    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
164    
165    checkpoint58m_post
166    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
167       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
168    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
169       keep global_ocean.90x40x15 (for AD testing) with former secondary test
170       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
171    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
172        add MITgcm_tutorials (= code + all the tutorials)
173    o ecco, option to compute cost for total ssh (mean+anom)
174    o consistent with addition of ptracer and ssh in pkg/profiles
175    o profiles: adding ptracer and ssh
176    o testreport: change multi-test output-file name
177      (from output.txt.{name} to output.{name}.txt)
178    o profiles: now ok for mutli-tiles case
179    o seaice: add 4 parameters for different advection schemes for area,
180      (effective) seaice thickness, enthalphy, and snow height. Their default
181      is the standard parameter SEAICEadvScheme
182    o calc_gw:
183     - add cosFacU in zonal viscous flux (harmonic.visc.).
184     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
185       of tutorial_plume_on_slope.
186    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
187    o calc_gw: true flux-form, account for horizontal grid spacing.
188      update rotating_tank results, but not plume_on_slope (affected at
189      truncation level, 11 digits).
190    
191    checkpoint58l_post
192    o calc_gw:
193     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
194     - remove side-drag for now (need to fix it); update plume_on_slope results.
195     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
196    o commit code to make SST/SSS weights spatially variable
197      (based on either variable in-situ or variable initial T/S weights)
198    o pkg/ecco:
199      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
200        now based on horizontally varying weights wthetaLev, wsaltLev
201      * cost_averagesflags now returns year indices in addition to day, month
202      * sflux balance is performed on annual basis
203        (sflxumm, sfluxmm2, bal_sfluxmm)
204      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
205        including separate counting and multipliers
206    o pkg/rbcs
207      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
208    
209    checkpoint58k_post
210    o testreport:
211     - always build in dir. "build" (if not there, mkdir build instead of building
212       & running in input)
213     - run in dir run (if it exists), in build otherwise.
214     - call prepare_run (if input/prepare_run exists)
215     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
216    o pkg/exf modifications to interpolation and rotation routines for more
217       reasonable treatment of North Pole singularity: for tracers North Pole
218       value is set to northernmost zonal-mean value, for zonal velocity it is
219       set to zero, and for meridional velocity it is set to northernmost value.
220    o pkg/exf/exf_check_range.F
221     - add tile index to diagnostics and move stop statement to the very
222       end of the routine.
223    o pkg/diagnostics: (diagnostics_main_init.F)
224      define title of isomorphic variables according to the current config.
225    o pkg/thsice with pkg/seaice dynamics:
226    - fix domain of computation (interior only, required for exf) and do exchanges
227    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
228    o towards a standard way of dealing with multi-threading in MONITOR
229      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
230    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
231       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
232    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
233    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
234    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
235       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
236    o tracer advection:
237     - clean-up and simplify calc_common_factors.F
238     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
239       advection subroutine (but still not used within DST advection S/R)
240    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
241    
242    checkpoint58j_post
243    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
244      from file (collects calls previously in FORWARD_STEP)
245    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
246    o adjoint store dir. adjusted accordingly
247    o genmake2
248      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
249    
250    checkpoint58i_post
251    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
252      on wind stress (SEAICEstressFactor defaults to 1.)
253    o Total number of Timers is finite (<=40): comment out 2 non-essential one
254      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
255    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
256      on CS-grid: no longer loosing mass.
257    o exf & curvilinear-grid: no longer modify longitude xC & xG.
258    o pkg/ggl90: fix sloppy output and fix a bug
259    o pkg/seaice: added SEAICEuseEVPpickup parameter
260      - Set to false in order to start EVP solver with
261        non-EVP pickup files when using SEAICEuseEVP
262      - fix sign error in diffusion in seaice_calc_rhs
263    
264    checkpoint58h_post
265    * Modifications for bottom topography control
266      o replace hFacC by _hFacC at various places
267      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
268      o add non-self-adjoint cg2d_nsa
269      o update autodiff support routines
270      o re-initialise hfac after ctrl_depth_ini
271      o works for 5x5 box, doesnt work for global_ocean.90x40x15
272    * Adding verification for 5x5 box (4-layer) bottom topography control
273    
274    checkpoint58g_post
275    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
276       used for mean seasonal cycle, mean diurnal cycle); add an example
277       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
278    o pkg/ggl90:
279      - add parameter (minimum surface kinetic energy)
280      - fix bug (avoiding division by zero)
281    o couple pkg/thsice to pkg/seaice:
282      - modify advection in seaice to accomodate new scalar fields to be advected
283      - only muliDimAdection scheme work with seaice/thsice
284      - mapping of thsice-variables to seaice-variables, back and forth
285      - does not break the verification experiments, but does not give the
286        desired results either
287    o pkg/seaice
288      - make (default) second order advection a bit less confusing?
289    
290    checkpoint58f_post
291    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
292      to pkg/seaice):
293      - new routines thsice_map_exf and thsice_get_exf provide the interface
294      - add an additional formal parameter to thsice_solve4temp
295    o pkg/exf:
296      - add new fields wspeed, snowprecip (to be able to couple to thsice)
297      - correct Stefan-Boltzmann constant
298      - new parameter for longwave surface emittance
299      - separate some stuff from exf_bulkformulae into new routines  
300        exf_radiation, exf_wind
301      - add new parameters and constants: longwave emissivity for ocean, ice
302        and snow, evaporation parameters over ice
303      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
304        either wind from stress or stress from wind
305    o pkg/thSIce:
306    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
307    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
308       and THSICE_CALC_THICKN
309    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
310    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
311      to make debugging easier.
312    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
313    o pkg/bulk_force:
314      - clean-up comments and parameters ;
315      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
316    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
317      generate new output for test-experiment: aim.5l_cs.thSI
318    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
319      testreport accordingly
320    
321    checkpoint58e_post
322    o SEAICE_CGRID adjoint done
323    o R_STAR adjoint implemented.
324      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
325      * need to sort out init. of h0facc, etc.
326    o Make pkg/profile fully independent of ecco,cost, etc. stuff
327      to be able to use it in pure forward.
328    
329    checkpoint58d_post
330    o upgrade simple test-experiment to tutorial example:
331     step.1: duplicate the experiment and (step.2) will remove the old copy.
332      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
333      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
334      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
335      tutorial_global_oce_biogeo    <- copy of dic_example
336      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
337      tutorial_plume_on_slope       <- copy of plume_on_slope
338      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
339      tutorial_global_oce_optim     <- empty for now (David ?)
340      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
341     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
342    o correct a sign problem in cost_scat.F
343    o obcs and ptracers: fix boundary conditions for advections schemes
344      with larger stencil
345    o thsice adjoint: start
346    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
347      completeness
348    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
349      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
350    o ptracers adjoint:
351      * avoid extensive recomputatations
352      * fix missing re-init. of gptr (missed by TAF)
353    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
354      me to turn off the excessive output to STDOUT that this package produces
355    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
356      and add those terms in Vector-Invariant formulation.
357    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
358      if the control period (xx_hfluxperiod etc) is 0
359    o in profiles pkg, clean routines and fix details
360    o in ecco pkg, reading ssh data:
361      fix problem in case the model does not start at iter0=0
362    o fix mnc-pickup/restart for ptracers
363    o new package prifiles:
364      code to compute profile-based cost by Gael Forget
365      (modifs in ecco, ctrl, autodiff)
366    o Benign bug fix in initialization (spotted by M. Mazloff) of
367      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
368    
369    checkpoint58c_post
370    o adjoint: finish NLFS adjoint and provide reference output in
371      verification/global_ocean.90x40x15/results_ad_nlfs
372    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
373      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
374      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
375      with SEAICE_CGRID defined.
376    o move calendarDumps from "data" to "data.cal" and clean-up the code
377      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
378    o add useEXF & useCAL flags (for now, set in hard-coded way)
379    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
380      (were missing in NH mode, and wrong in quasihydrostatic mode).
381      waiting for Chris updated version of calc_gw to add those CALLs.
382    o fix bug in quasihydrostatic S/R ;
383      add a test for this option: global_ocean.90x40x15.qshyd
384    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
385      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
386    o add on/off flag useOffLine for package OFFLINE
387    o seaice:
388      - modify advection so that it works also on the C-grid
389      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
390        problem in multi-tile runs with C-grid
391      - add flags for clipping ice velocities and/or masking solver forcing
392      - fix drag (ocean on ice) formulation and a bug that caused noise in the
393        C-grid solver
394      - added a few comments to seaice_diffusion.F
395      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
396        are now exclusive)
397      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
398        required re-ordering the code a little:
399       + make DAIRN global variable (defined in SEAICE)
400       + move computation of the viscosities eta and zeta into a new separate
401         routine (because I need to recompute them in seaice_ocean_stress.F)
402    
403    checkpoint58b_post
404    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
405      update output.txt of exp. aim.5l_cs.thSI
406    o various mnc cleanups and improvements:
407      + shrink lookup tables by factor of ~4
408      + better error reporting when running out of lookup space
409      + able to handle longer path/file names (up to 500 chars)
410    o adjoint:
411      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
412      - TBD: "hidden" mom_vecinv recomp. in dynamics
413    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
414     (allow to differentiate between forcing components using new integer flags:
415      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
416     and add new flag to put Dissipation tendency out of Adams-Bashforth.
417    o ecco
418      - enable trend removal from SSH anomaly obs.
419    o adjoint
420      - a fix for PmEpR when #undef EXACT_CONSERV
421      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
422      - try to fix "hidden" recomp. in forward_step for NLFS
423        (NLFS seems broken sometimes after I checked it in)
424    o seaice:
425     - add c-grid version of the dynamic solver:
426       + three new routines that are the c-grid substitute lsr, dynsolver
427         and ostres
428       + put a few fields that were local to dynsolver into global common
429         blocks, so that I can move the computation of stresses etc into
430         seaice_lsr (saves coding but may break the adjoint).
431     - replace more hardwired parameters by runtime parameters
432     - add ice masks that mask the rhs of the implicit solvers where there
433       is no ice (commented out in seaice_dynsolver, because i am not sure
434       if this works properly), eventually this should replace the clipping
435       of ice velocities in seaice_dynsolver to +/-40cm/s.
436    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
437      include it only where its needed
438    o move balancing of fluxes before the call of external_forcing_surf
439    o seaice:
440      - correct units of turning angles (now they are really in degrees)
441      - move computation of GWATX/Y out of main routine into dynsolver
442      - initialize GWATX/Y in seaice_init
443    o Apply mask on Fresh-Water flux (needed for SSH forcing).
444      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
445    o seaice: add runtime flags for turning angles (default to zero)
446    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
447      and trend from exf forcing and ctrl control adjustments
448    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
449      (since checkpoint57x_post)
450    o change the default rotation period to 86164.s = the Earth rotation
451    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
452      and based on a reference stratification. Tested within hs94.cs-32x32x5.
453    o seaice advection: add code for choosing between the default (2nd order
454      central differences) and multiDim advection schemes provided by
455      pkg/generic_advdiff
456    o seaice:
457      - removed all references to SEAICE_GRID.h fields from
458        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
459        (cubed-sphere configuration will change a little)
460      - grid computations in seaice_init are obsolete now.
461      - cleaned up code a little so that is easier to read (hopefully).
462      - added new (better?) discretizations of default advection and diffusion
463        (turn on with SEAICEuseFluxForm)
464      - replace 1 in 3d global fields by kSurface in growth.F
465      
466    checkpoint58a_post
467    o seaice:
468      - bug fix in advect.F
469    o shelfice:
470      - separate shelfice load anomaly from pload (breaks with time
471        dependent forcing), => introduce constant field shelficeLoadAnomaly.
472        Its default is 0., but it may be computed more cleverly from (unknown)
473        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
474        done offline. A good approximation of the pressure load anomaly is
475        necessary to avoid large initial adjustment processes underneath
476        deep-reaching shelfice.
477      - small fix in ISOMIP shelfice_thermodynamics
478      - add more sophisticated thermodynamics of Hellmer (1989), this is
479        now the default
480      - give a few constants more intuitive names
481    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
482      if bulk formulae are used in long integration (especially EmPmR). Turn
483      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
484      if balancePrintMean, the imbalance that is substracted is printed to
485      STDOUT.
486    o fix bug (typo) in obcs_apply_eta.F
487    o add a new package shelfice which enables us to model the circulation
488      underneath shelf-ice with draughts of hundreds of meters.
489     - works
490     - to do: + include improved thermodynamics
491              + check whether kSurfC (from model/inc/SURFACE.h) can be used
492                instead of new field kTopC
493              + can we use topoFile, Ro_surf and existing code in ini_depth.F
494                instead of new field R_shelfIce and new code in ini_depth.F
495                and ini_mask_etc.F?
496              + adjust vertical mixing schemes?
497    o seaice pkg:
498     - add a cpp-flag to include a simple formula for a salinity dependent
499       freezing point of sea water at the surface
500     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
501       meridional stresses are now different (and hopefully correct)
502    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
503       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
504       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
505    o pkg/diagnostics: add options and parameters for regional-statistics
506       diagnostics ; define regions by reading a region-mask from a file
507       (might add other options later)
508    o pkg/bulk_force:
509     - add option and parameters to use AIM surface-flux formulae.
510     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
511       others forcing fields (defined in PARM05, parameter file "data") are loaded
512       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
513     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
514     - use the right EXCH call for uwind,vwind (to work on CS-grid).
515     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
516       and parameters (note: calcWindStress replaces .NOT.readwindstress).
517     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
518    
519    checkpoint58
520    o add "--embed-source" option to genmake2 which, when the supporting
521      tools can be compiled (as determined by genmake2) will turn on the
522      embed_files package which then embeds the entire MITgcm source code
523      (*.[fFhc] + Makefile) used for the build within the executable
524      - requested by CNH but off by default
525      - adds a paltry <9MB to the mitgcmuv executable in most cases
526      - only writes the output when useEMBEDSRC in eedata is true
527    o clean up 3-dim. relaxation codes:
528      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
529      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
530      * Thanks to Tom Haine for testing!
531    
532    checkpoint57z_post
533    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
534      affects output (@ truncation level) of exp. plume_on_slope ; updated.
535    o fix the pickup behavior for obcs in combination with ptracers
536    o fix a bug in ptracers_external_fields_load
537    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
538      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
539    o transfered surface NH pressure to eta field (if exactConserv).
540    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
541         and update lab_sea output.txt file.
542    o completing 3-dim. relaxation code: additional term
543         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
544      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
545      * At compile time, in "EXF_OPTIONS.h" set
546          #define  ALLOW_CLIMTEMP_RELAXATION
547          #define  ALLOW_CLIMSALT_RELAXATION
548      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
549          tauThetaClimRelax3Dim = 15552000.0,
550          tauSaltClimRelax3Dim  = 15552000.0,
551      * 3 cases:
552          1) Use a constant-in-time 3-dim. field
553          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
554          3) Real-time relax. to time-evolving prescribed field
555    o Adding Laplacian-type smoothness constraint on
556      initial and boundary (forcing) controls (ic, bc)
557      * enable at compile-time via
558        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
559      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
560      * Absolute scale somewhat unclear so far
561      * no area weighting was included since no other cost term does so far
562    
563    checkpoint57y_post
564    First step for a NLFS adjoint
565    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
566    o new init. routines for calc_r_star, calc_surf_dr
567    o still need to deal with ini_masks_etc
568    o testreport seemed happy
569    checkpoint57y_pre
570    
571    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
572    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
573    o add new offset feature to offline pkg (plus minor cleanup)
574    o cfc fixes for final year of integration
575    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
576      be in GCHEM_OPTIONS).
577    
578    checkpoint57x_post
579    o fix testreport Pb in multiple test experiment.
580    o cleanup our namelist syntax in verification:
581      - make it more F95 standards compliant (some work still needed)
582      - allows the vast majority of our tests to work with gfortran
583    o Non-Hydrostatic:
584     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
585     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
586    o Allow to apply AB on T,S rather than on AB(gT,gS):
587     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
588     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
589       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
590     - need a "clever" read_pickup to restart from the other AB formulation
591    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
592    o remove some unused variables (reduces number of compiler warnings)
593    o adjoint
594      * Disable useVariableViscosity for adjoint for time being
595        (there are a number of extensive recomputations)
596      * Initialize certain variables needed for adjoint
597    
598    checkpoint57w_post
599    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
600                 fix the singleCpuIO RS version of MDSWRITEFIELD
601       and add a WARNING if using globalFiles=T with multi-processors.
602    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
603      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
604    o tracer advection scheme:
605      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
606       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
607       was not very convenient).
608      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
609       (further tests needed for the implicit DST & Flux-Limiter schemes).
610    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
611      and sRef for convenience, handy, when you want to initialize
612      ptracers in a large domain with a constant non-zero value. Also,
613      untangle ptracers_init.F a little.
614    
615    checkpoint57v_post
616    o change dome exp. to use variable viscosity in side-drag terms.
617    o remove all the files from the cfc_offline test since they are now
618      incorporated into tutorial_cfc_offline which has been producing
619      identical results for a few days of testing
620    o add new parameter: sideDragFactor to enable half-slip-side BC
621      and change side-drag S/R to use viscosity from mom_calc_visc
622      (can switch back by setting sideDragFactor=0.); affects results at
623      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
624       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
625    o vorticity & strain are now computed without masking, to account for
626      no-slip-side BC in variable viscosity calculation ; mask is applied
627      anyway later on, before computing advection/coriolis terms.
628    o modify exp4 to test new obcs support for reading from external files
629      and for passive tracers
630    o fix behavior of ptracers_monitor when monitor output is written to a
631      netcdf-file; still not independent of monitor.F (writes in the same
632      file).
633    o change default value of tRef (put a uniform, meaningful value for ocean
634      & atmos) and initialize sRef (was missing, as Martin mentioned).
635    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
636      to be proportional to enstrophy dissipation length.  Thus,
637       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
638      This is now consistent with Smagorinsky and with the manual.
639    
640    checkpoint57u_post
641    o OBCS and PTRACERS: add open boundary support for passive tracers
642      - either use homogenous (pseudo) v.Neumann conditions or prescribe
643        OB-values from file; this is not different from the way theta and salinity
644        are treated
645      - however, Orlanski-radiation conditions are not supported, and the model
646        will stop if you use pTracers and Orlanski at the same time.
647      - beefed up the rountine obcs_external_fields_load: now only those open
648        boundary values are overwritten with values from files for which there
649        are really files, otherwise the OB-fields remain untouched. This makes
650        it possible to use different OBs at different ends of the domain (as
651        with EXF)
652    o reduce number of exch calls in shap_filt (s2).
653    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
654      truncation level) 4/5 MLAdjust test results (11&12 digits match).
655    
656    checkpoint57t_post
657    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
658    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
659      same truncation, independent of the face number: affects affects several
660      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
661    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
662      note that biharmonic viscosity + no-slip was not tested in any experiment.
663    o fix bug in non-linear free-surf side-drag ; generate new output for
664      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
665    o make mnc honor the writeBinaryPrec flag for most kinds of output
666    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
667    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
668      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
669    o add brackets in multi-terms sum to get same truncation, independent of
670      the face number (manage to get exactly same value of gU,gV at the cs-edge)
671      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
672    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
673      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
674      a maximum grid-scale Reynolds number.  Also, changes all length calculations
675      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
676      Suggested values of viscosity parameters found in mom_calc_visc.
677      Many new viscosity diagnostics available.
678    
679    checkpoint57s_post
680    o Add clearing-house for viscosity calculations, mom_calc_visc and
681      correct numerous bugs in LeithD and Smagorinsky discretizations.  
682      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
683      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
684      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
685      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
686      The Strain-Tension form is now called with useStrainTensonVisc=.true.
687      ViscAhStrain and viscAhTension are now retired.
688    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
689    o In response to JMC's bug report, genmake2 now ignores any soft-links
690      that it finds in the *current* directory when searching for files.
691      Soft-links found in any other source directories will still work as
692      they did before.
693    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
694      a C routine to unlimit the stack size
695    o mnc-ify pkg/aim snapshot vars
696    o mnc-ify pkg/land as requested by Daniel
697    o various changes to mnc including:
698      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
699      - output can now be grouped so that all files within a group
700          change the ITER portion of their names in lock-step together
701      - can now read ("global") PER-FACE (in addition to PER-TILE) files
702          and works with both EXCH1 and EXCH2 (but needs more testing)
703      - writing works for all verification test cases w/ g77 on Linux
704    
705    checkpoint57r_post
706    o make MNC variable initialization happen earlier
707    o add diagnostics for (almost) each term of the momentum Eq.
708    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
709    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
710    o remove MINIMAL_TAVE_OUTPUT option ;
711      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
712    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
713      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
714    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
715    o add time-dependent SST, SSS control
716    o cost terms in ecco/ modularized (new cost_generic.F)
717    o cost_averages routines are modularized (new cost_averagesgeneric.F)
718    o new infrastructure for seaice model vs. obs misfits in seaice/
719      * driver from the_main_loop.F is seaice_cost_driver.F
720      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
721      * gradient check in Exp. 6a of natl_box_adjoint/
722    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
723      (see README file)
724    
725    checkpoint57q_post
726    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
727    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
728      - bug was reported by Jean-Michel and Ian Fenty
729    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
730      update exp. cpl_aim+ocn output.
731    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
732      Needed for high-res. runs with large global files
733      to be able to limit tapelev size
734    o Changed some tests for adjoint:
735      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
736      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
737      * global_ocean.90x40x15/ back to default 3-level checkpointing
738    o Modifications to enable scripted COMMON to MODULE conversion
739      * verification/OpenAD/code/ has necessary scripts and description;
740      * converts, compiles and runs successfully;
741    
742    checkpoint57p_post
743    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
744    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
745      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
746    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
747    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
748      (was already the case for dissipation with mom_vecinv,
749       and also the case for grad.PhiHyd when staggered-timeStep)
750      This will allow to put dissipation out-off the AB time-stepping.
751     Unfortunately, affects truncation error. Update output of exp. that "fails"
752      (cg2d matching number) and leave the others for later: front_relax(10),
753      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
754      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
755    
756    checkpoint57o_post
757    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
758      (2) its ready to be documented during the 20050801 DocFest
759    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
760      for ideal_2D_oce and lab_sea on linux_ia32_g77
761    o set to #undef CTRL_SET_OLD_MAXCVARS_30
762      in global1x1_tot/code_seaice_adj to access indices 32, 33
763      (worth another tag)
764    
765    checkpoint57n_post
766    o adding precip control xx_precip 32
767    o adding swflux control xx_swflux 33
768    o Replacing 10 forcing penalty cost routines by 1 generic.
769    o Implementing partitioning in time-mean and variable adjustment
770      for atmos. state.
771    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
772    o in natl_box_adjoint:
773      * updated exp 1 to 10
774        (but does not have time-mean vs. variable split results yet)
775    o updated global1x1/*_seaice_adj/
776      to incorporate latest changes
777    o enable useSingleCpuIO for mdsio vector routines
778      (applies in particular to tapelev I/O)
779    o removed inefficient K-loop in all active_file*control*.F
780    
781    checkpoint57m_post
782    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
783      and advect_cs (use EXCH-2 and standard cs-32 grid files).
784    o pkg/exch2: filling of face-corner halo regions is optional
785      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
786    
787    checkpoint57l_post
788     tag before updating tutorials (pre-release-2)
789    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
790       for output and interpolation of input fields onto model grid)
791    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
792       Affects results of exp. rotating_tank ; update output.txt.
793    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
794          and taking the square quantity and/or using a fraction-weight field.
795    o fix aim_diagnostics_init.F mate numbers.
796    o add mnc output capability to diagnostics/diagstat and update
797      our cvsignore files for the ACSII output generated
798    
799    checkpoint57k_post
800    o lab_sea now uses diagnostics package and provides a suite of
801      new EXF diagnostics output.
802    
803    checkpoint57j_post
804    o exf
805      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
806        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
807        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
808      * extended diagnostics output
809        - now includes all EXF variables
810        - hs, hl moved to common block
811        - separate S/R for diagnostics, called after ctrl vector is added
812        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
813        - EXFqnet contains true Qnet (i.e. includes qsw)
814      * updated verif. lab_sea, global_with_exf
815      * Rearranging hflux (exf_mapfields -> exf_getforcing)
816        to ensure that diagnostics sees a true EXFqnet
817    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
818    o diagnostics pkg: change pointers so that 1 diagnostic can be used
819      several times with different frequencies.
820    o mnc-ify the thsice package as requested by Daniel Enderton
821      - the monitor--MNC output needs work
822      - many attributes need to be added (most are currently blank)
823    o mnc-ify theaim_v23 package as requested by Daniel Enderton
824      - many attributes need to be added (most are currently blank)
825    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
826    o add Sadourny like discretization to the 4th.O vorticity advection scheme
827    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
828      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
829         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
830    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
831     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
832    
833    checkpoint57i_post
834    o Diagnostics package was changed: diagnostic allocation is now deactivated
835      by setting an empty file name in the namelist (used to be by setting 0 frequency)
836    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
837      add 1rst Order upwind vertical Shear.
838    o add a quick fix for A/B checkpointing in OFFLINE mode
839    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
840      end-run around the C/Fortran linking horror in eesup/src/timers.F
841    o added pkg/runclock: allows user to terminate run based on wall clock
842    o added non-hydrostatic scaling parameter: nh_am2
843    o pkg/my82: futile attempt to make results compiler-independent by adding
844      some "_d 0", etc. no effect.
845    o for mnc output, fill the 'T' coordinate var with myTime and create a
846      separate 'iter' variable for iteration count
847    o pkg/diagnostics:
848      add new capability: output of Global/Regional & per-level statistics ;
849      tested against monitor output (including land & thSIce) on various exp.
850    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
851    
852    checkpoint57h_done
853      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
854      data.diagnostics, data.gchem, data.ptracers) is done.
855    
856    o pkg/diagnostics: prepare for Global/Regional statistics.
857      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
858    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
859      and rename it: DIFFERENT_MULTIPLE
860    
861    checkpoint57h_post
862    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
863    o pkg/diagnostics: change output frequency, now in seconds (instead
864      of Nb of iterations). This requires to change data.diagnostics.
865    checkpoint57h_pre
866    
867    o in mnc, let the user create the output dir if both mnc_outdir_date
868      and mnc_outdir_num are false
869    o add fflags() to pkg/diagnostics which allows one to specify, on a
870      per-file basis, the file precision [default behavior is unchanged]
871    o added diagnostics to pkg/kpp, including computation of mixed layer
872      depth based on a temperature/density criterion
873    o updated verification/natl_box to test the new pkg/kpp diagnostics
874    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
875    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
876    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
877      not mnc -- this mistake was found by JMC and is now corrected
878    
879    checkpoint57g_post
880    o add Adams-Bashforth 3rd Order time stepping:
881      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
882      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
883    checkpoint57g_pre
884    
885    o make lambda[Theta,Salt]ClimRelax spatially varying
886      (default remains spatially uniform constant based on tau)
887    o added new control variables
888      * init. uVel, vVel, etanN
889      * lambda[Theta,Salt]ClimRelax
890    o separate masks used for ctrl_pack/unpack 'from write_grid' output
891      (suggested by G. Forget)
892    
893    checkpoint57f_post
894    o add parameter "baseTime" = model base time = time at iteration zero
895      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
896      account for baseTime shift
897    o move Coriolis arrays from PARAMS.h to GRID.h
898    checkpoint57f_pre
899    
900    o mnc-ifying the seaice package
901    o introduced an alternative length scale calculation for use in the limiting
902      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
903    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
904    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
905      as well as grad(vort3).  Made it compatible with both approximate form
906      for the cubed sphere and full form of these gradients.  Added flag
907      useFullLeith to select between approximate and full form.  
908    o add "d0" in getcon.F to reduce differences between compilers/platforms
909      update output.txt of exp. fizhi-gridalt-hs
910    o change port_rand funtion to allow to set the seed.
911    o fix obscure MNC bug involving conversion between reals and integers
912      - it caused no problems with certain (eg. gcc, ifc) compilers but the
913        new version is now more standards-compliant
914    o adjoint-related modifications
915      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
916      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
917      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
918    
919    checkpoint57e_post
920    o Adding eddy stress controls a la Ferreira et al.
921    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
922    
923    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
924      update output.txt of exp. fizhi-gridalt-hs
925    o add more "Z" dimensions and associated coordinate vars to MNC
926    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
927    o parameter calendarDumps: when set, approximate months (30-31 days) and years
928      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
929      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
930      months and years.  Requires pkg/cal.
931    o diagnostics: add pickup functionality
932      - off by default for backwards compatibility
933      - current version only uses MDSIO -- MNC will be added
934    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
935    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
936    
937    checkpoint57d_post
938    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
939    o modify verification/ideal_2D_oce so that it tests the creation of mnc
940      output from the diagnostics package
941    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
942    o make genmake2 more portable by using ".$FS" instead of ".f" for more
943      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
944    o add coordinate variables to the MNC output from the diagnostics package
945    o change MNC-flags default value: true when useMNC=TRUE
946    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
947      the ability (off by default) to read the grid information using MNC
948    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
949    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
950    o do snap-shot diagnostics at the middle of the time-interval (instead of
951      at the end).
952    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
953      new test for AIM with thSIce + slab-ocean
954    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
955    o move state variable diagnostics to the beginning of the time step ;
956      (note: still needs some work specially for snap-shot diagnostics)
957      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
958    
959    checkpoint57c_post
960    o Change testing option (-ieee) to get closer agreement between g77 & ifort
961    o generate new output.txt files on faulks with g77 & the new -ieee option
962    checkpoint57c_pre
963    
964    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
965      update output.txt of exp. global_ocean.90x40x15
966    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
967      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
968    o add saltFlux(+File) forcing capability with periodicExternalForcing
969    o allow to use pkg diagnostics for GM-Redi & ThSIce output
970    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
971    o improvements for the MNC output from DIAGNOSTICS:
972      - correct handling of the unlimitied dimension
973      - all dims now have associated coordinate variables
974      - variables located at U, V, and Corner ("Z") points are now written
975        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
976        *all* data points are output
977    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
978    o added pkg/seaice/seaice_monitor.F
979    o mdsio_readfield.F can now read files visible only to master MPI process.
980    o pkg/seaice: some test code for ice-modified ocean stress
981    o exf_getffields interpolation defaults to bilinear for all scalar forcing
982      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
983      spurious negative numbers for precipitation and humidity.  Will cause
984      some small numerical differences for integrations using pkg/exf/exf_interp.F.
985    o pkg/ctrl/
986      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
987        May be enabled via doPackDiag
988      *  introduce z-scaling of
989         + gradient (doZscalePack) and
990         + control (doZscaleUnpack)
991    o pkg/mdsio/
992      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
993      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
994    
995    checkpoint57b_post
996    o simplify options in diagnostics_fill arguments (remove weird combinations)
997    o fix MNC coordinate variables so that they now contain per-face index
998      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
999      general, EXCH2 grids are only aligned to a "local" coordinate system
1000    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1001    o Implement instantaneous output within pkg diagnostics:
1002      setting a negative frequency in data.diagnostics produces
1003     "snap-shot" output (as opposed to time-average if freq > 0)
1004    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1005      NOTE: change ptracer diagnostics name: use 2 characters to work with
1006            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1007    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1008      becomes the coordinate variable for the 'T' dimension
1009    o add CF-style coordinate variables to MNC
1010      - just a first cut:  numbers are meaningless on the cubesphere and
1011        missing along the T axis but otherwise it works!
1012    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1013    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1014    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1015      this is based directly on what the model compute, so that the content of
1016      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1017    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1018    o clean up build options files for SunOS, in particular
1019      - remove -traditional from xmakedepend
1020      - change -xarch=v9 to -xarch=native for f77
1021      - restore use of make (not gmake)
1022      - add CC=gcc if using g77
1023    o changes per discussion of AM, JMC, & EH3 today:
1024      - move redundant "grid" variables out of "state" -- in preparation of
1025        creating proper CF-style coordinate variables and in recognition
1026        that any/all grid variables can be easily copied (eg. w/NCO) from
1027        the grid files into any of the other NetCDF files
1028      - *always* output grid variables with MDSIO (this will eventually be
1029        changed)
1030      - output MNC grid file if useMNC is true
1031    o every instance of _END_MASTER() has been found and replaced with
1032      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1033      preprocessors
1034    o re-arrange diagnostics pkg initialisation:
1035     - allow each package to extend the available diagnostics list
1036     - add some checking and fix small problems (multi-threaded, ...)
1037     - new S/R diagnostics_fill (replace fill_diagnostics):
1038       look through the short list of active diag. (instead of the long list)
1039       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1040    
1041    checkpoint57a_post
1042    o this set of changes restores TAMC compatibility
1043      tested for global_ocean.90x40x15 adjoint on trough
1044      (what a pain)
1045    
1046    checkpoint57a_pre
1047    o some modifs in tools/build_options for sunos
1048    o call ctrl_pack for ctrl at end for optimcycle=0
1049    
1050    checkpoint57
1051    o add horizontal bi-harmonic viscosity for vertical velocity
1052      - new parameter viscA4W (defaults to viscA4)
1053      - affects only non-hydrostatic code
1054      - to be done: no-slip lateral boundary conditions
1055    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1056    o implement Implicit Vertical advection for pTracers
1057    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1058      (implemented also for implicit vertical diffusion & advection)
1059    o OBCS: extend application of tracer open boundary conditions
1060      to a strip beyond the boundary of width Olx/Oly
1061    o add call monitor to TAF set of required calls (flow directives)
1062      and include in natl_box_adjoint
1063    o untangle a few ifdefs related to cost, ctrl, autodiff
1064      untangel a few ALLOW_ECCO_OPTIMIZATION
1065    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1066      (theta2, salt2 in ecco_cost_weights)
1067    
1068    checkpoint56c_post
1069    o OBCS as control variables
1070      - update ctrl_ad_diff.list, obcs_ad_diff.list
1071      - remove balance of obcs controls from default
1072      - fix index bug nobcs in ctrl_init
1073      - fix dummy fields filen in ctrl_pack
1074      - add dummy weights for obcs
1075    o lsopt: comment out fort.94 output
1076    o optim:
1077      - remove unnecessary header files
1078      - adjusted namelists
1079      - add xerbla.F to Makefile
1080    o exf:
1081      - multiple modifications of exf_check_range
1082      - unit change in exf_init_runoff from [m/year] to [m/s]
1083    o mdsio:
1084      - i/o-vector change debugLevel from debLevA to debLevB
1085    
1086    checkpoint56b_post
1087    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1088      is called from DO_THE_MODEL_IO
1089      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1090      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1091      - clean up PTRACERS_WRITE_TIMEAVE a little
1092    o add another verification experiment that tests both the cfc-pkg and
1093      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1094      reactive tendencies treated inline with regular timestepping
1095    o testreport previously did a lousy job of comparing small numbers, so
1096      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1097      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1098      testreport.
1099    o ptracers_monitor: bug fix for MPI
1100    
1101    checkpoint56a_post
1102    o GCHEM: finish reorganizating the package
1103      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1104        (introduces another 3D-array for each passive tracer, but only if
1105        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1106        gchemTendency is not needed because the timestep is done separately)
1107      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1108      - GCHEM is now---more or less cleanly---separate from PTRACERS
1109      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1110        so clear to me how that should be done in a general way.
1111    o CFC: improve formatting of output in CFC_ATMOS
1112    o PTRACERS:
1113      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1114        that ALL experiments with ptracers enable can be checked. This makes
1115        GCHEM_MONITOR obsolete.
1116      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1117        monitorFreq
1118      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1119    o add PTRACERS (PTR0[1-5]) to testreport output
1120    o exf_check_range:
1121      * default changed to .TRUE.
1122      * will check values for niter0 if debLevA, every timestep if debLevB
1123      * STOP in exf_check_range if 'out of range'
1124      * range chosen generous to allow for potential extema
1125      TBD: a version with stricter range
1126           permitted range would be runtime parameters
1127    o GMredi:
1128      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1129      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1130      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1131    o GCHEM:
1132      - move call to GCHEM_FORCING_SEP, so that it is now called before
1133        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1134      - introduced a useGCHEM runtime flag and applied it everywhere.
1135      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1136        this flag is now only visible within GCHEM-pkg routines.
1137      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1138        be replaced by a 3D array that is computed before thermodynamics; for
1139        this, the tracer ID iTracer had to be included into the parameter list
1140        of ptracers_forcing
1141      - set up forward_step to call gchem_forcing, that will replace
1142        gchem_forcing_int in ptracers_forcing
1143      - cleaning up
1144    o small cleaning of exch2: remove files that are also in eesupp/src
1145    
1146    checkpoint56
1147    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1148    o mnc: cleanup "full" files--fixes out-of-memory problem
1149    o ECCO-GODAE
1150      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1151      * fully merged and updated from SIO code
1152        windstress sign change affects
1153        - exf_inscal_[u/v]stress
1154        - sign of xx_tau[u/v] adjustments
1155        - signs in cost_scat
1156      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1157      * natl_box_adjoint updated and compressed
1158      * 2-level checkpoint switch added
1159        (tested in EXP. 1 of natl_box_adjoint)
1160      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1161    o SVD
1162      * first complete, non-hacked version for SVD calculations
1163      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1164        performed via direct access files admtlm_vector.it????
1165        (via ctrl_[un]pack)
1166      * optimcycle is used for ARPACK iteration counter
1167        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1168      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1169        and add linear transforms where necessary
1170      * controls are initial/final SST, SSS (can be extended; need to check
1171        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1172    o mdsio: filename info to both stderr, stdout
1173    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1174      from sign change
1175    
1176    checkpoint55j_post
1177    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1178      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1179    o add consistent build directories and .cvsignore files to verification
1180    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1181    o make all subroutines 30 or less characters in length for certain older
1182      compilers to work (a thorough search only turns up two routines in
1183      pkg/ptracers)
1184    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1185      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1186    
1187    checkpoint55i_post
1188    o change arrays for total vertical diffusivity (2.D if explicit,
1189      3.D if implicit) ; each ptracer uses its own background value.
1190    o added mnc/NetCDF output capability to ocn_compon_interf
1191      - added bits to verification/cpl_aim+ocn so that it can run on
1192        ITRDA and other clusters without the mpirun "-wd" option
1193    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1194      configuration
1195    o give MNC the ability to create additional files rather than
1196      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1197      - the default is just less than 2GB which is a practical limit
1198        on many systems
1199    o Compute the non-local term using either KPP vertical diffusivity (=default)
1200       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1201    
1202    checkpoint55h_post
1203    o add verification test "vermix"
1204    o remove all the *_ioinc flags and replace with the single global
1205      outputTypesInclusive flag
1206    o allow to set a vertical profile of vertical diffusivity for T & S
1207    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1208    o useMNC moved from data.mnc to data.pkg
1209    
1210    checkpoint55g_post
1211    o Renaming carbon AD experiments to comply with testreport conventions
1212    o Updating adjoint of Held-Suarez hs94.1x64x5
1213    o Fixing directives for non-ECCO forward_step, after ECCO directives
1214      have been fixed to avoid recomp. of do_oceanic_phys
1215      Works well for global_ocean.90x40x15,
1216      but recomp. issue remains for carbon
1217    o Updating adjoint output for natl_box_adjoint after
1218      pkg/ecco has been modified (see taga c55d_post)
1219    
1220    checkpoint55f_post
1221    o rename to timeave_init_fixed
1222    
1223    checkpoint55e_post
1224    o some delicate re-shuffle of store directives to avoid one
1225      extra call of do_oceanic_physics
1226      affects ecco_the_main_loop.F, do_oceanic_physics.F
1227      checkpoint_lev1_directives.h
1228    o NB: this may break global_ocean adjoint temporarily,
1229      but it is clear how to fix it. Will do later, need this now.
1230    
1231    checkpoint55d_post
1232    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1233    o ecco_cost_weights is modified to 1x1 runs
1234    o modifs to allow observations to be read in as
1235      single file or yearly files
1236    o enable to read exf forcing fields as either
1237      single file or yearly files (flag useExfYearlyFields)
1238    checkpoint55d_pre
1239    
1240    o switch between 2-level and 3-level checkpointing
1241    o add ability of MNC to write local and "partial" (eg. 2D slices where
1242      the full 3D field is never actually stored) arrays to NetCDF files
1243      with the correct (that is, the complete multi-dimensional) set of
1244      array indicies
1245      - used in mom_vecinv() to write the diagFreq output
1246      - tested (demonstrated) in verification/aim.5l_cs
1247    o further mnc-ification
1248      - add verification/lab_sea to the list with mnc setups
1249      - fix undefined mnc v-names in cd_code
1250      - add kpp to mnc output (both snapshot and timeave)
1251    o non-hydrostatic code
1252      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1253        in calc_gw.F
1254      - defaults to viscAh
1255      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1256        friction or Leith) in non-hydrostatic mode, as long as there is
1257        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1258    o pkg/cost
1259      extend simple cost functions to treat time mean quantities
1260      (T,U,V) via cost_accumulate_state from cost_tile
1261    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1262        be 2 times larger than the minimum size the advection scheme requires.
1263        now get a perfect conservation of salt in advect_cs test-exp (updated)
1264    o GGL90 (Gaspar's TKE mixed layer)
1265      - add horizontal diffusion of TKE, requires exchanges in
1266        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1267        default. In OPA there is no horizontal diffusion of TKE but the
1268        mixing coefficients are computed from a horizontal average of TKE of
1269        6 points or so. I think that diffusion has a little more physical
1270        justification.
1271      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1272        was in vain)
1273      - mask tke-variable in ggl90_init
1274    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1275    o fix biharmonic diffusion on CS-grid.
1276    o more obcs stuff
1277      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1278        for reading boundary values. This routine is called from
1279        obcs_prescribe_read
1280      - updated obcs_check
1281      - changed sponge layer relaxation parameter units for days to seconds
1282      - turned off sponge layer by default
1283      - changed argument list of OBCS_CALC to myTime+deltaTclock
1284      - fixed about 35 bugs in obcs_external_fields_load
1285    
1286    checkpoint55c_post
1287    o obcs stuff
1288      - new runtime flags useOBCSprescribe, useOBCSbalance
1289      - re-arranged obcs_calc
1290      - moved exf_getobcs to obcs_prescibe_read
1291        obcs_prescibe_read is called after ORLANSKI stuff
1292        and independent of it (executable can contain all).
1293      - updated obcs_check
1294      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1295        These may be necessary only if tangential velocities are
1296        prescribed at OB, not sure, needs testing.
1297    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1298      which simplifies the calls and passes the ifc check-bounds test
1299    
1300    checkpoint55b_post
1301    o add a 2D scalar, Z location, exchange_2 routine.
1302    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1303      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1304      affects advect_cs results (for the wrong reason): update output.txt
1305    o use a more standard discretization for biharmonic viscosity ;
1306     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1307      affects results of dome set-up: update output.txt
1308    o fix gad_advection.F (CubedSphere part), back to version 1.23
1309    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1310    
1311    checkpoint55a_post
1312    o merged code to
1313      * prescribe/read time-dependent open boundaries
1314        (works in conjunction with exf, cal)
1315      * sponge layer code for open boundaries
1316      * each boundary N/S/E/W now has its own CPP option
1317        (healthy for the adjoint)
1318    
1319    checkpoint55
1320    o up-to-date adjoint of previous breaks
1321      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1322      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1323      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1324      - carbon: * remove tr1-related adjoint verification
1325                * add ptracer as control variable
1326    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1327      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1328    
1329    checkpoint54f_post
1330    o in verification/carbin/ remove experiment related to
1331      ALLOW_PASSIVE_TRACER (array tr1 etc)
1332      code_ad/ input_ad/ results_ad
1333    
1334    o add two new packages
1335      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1336        + subject to optimization (memory)
1337      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1338        + subject to reordering (many GOTOs in the original code)
1339        + so far opps is called for every (i,j) point, and then operates in
1340          the vertical; one may want to reorder the scheme in order operate in
1341          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1342          fields)
1343    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1344      - all verification tests compile and run with linux_ia32_g77
1345      - defaults are compatible with current input files--nothing
1346        should change if you were not previously using MNC
1347      - MNC output has been added in numerous places (eg. timeave)
1348        but there are still a few writes not yet do-able with MNC
1349        (this is in progress)
1350      - flags now allow for either/or/both use of MDSIO and MNC and
1351        documentation will soon follow
1352      - numerous small formatting cleanups for ProTeX
1353    o add version info (via BUILD_INFO.h) to MNC and stdout
1354    
1355    checkpoint54e_post
1356    o add two new packages
1357      - pp81 (Packanowski and Philander, 1981), Richardson number and
1358        stratification dependent mixing
1359      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1360      - these scheme operate in a similar manner as KPP (without ghat, of
1361        course), however there is only one diffusivity that is used for both
1362        temperature and salinity (and passive tracers)ç
1363    o add offline package
1364    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1365      provided by Stephanie Dutkiewicz
1366    o genmake2: add ability to search for C compilers and cleanup test output
1367      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1368    
1369    checkpoint54d_post
1370    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1371    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1372      leading to additional shift by 5 days each year of integration
1373       (i.e. leading to considerable offset over the years)
1374    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1375    o start with no AB and no initial filtering (staggerTimeStep):
1376      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1377    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1378      (external loading & cpl import/export stay in forward_step.F)
1379    o update coupling interface to work with new staggerTimeStep
1380    o change MDSIO ptracers_pickup.
1381    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1382    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1383    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1384    
1385    checkpoint54c_post
1386    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1387      this affects (truncation error) output.txt of test-exp:
1388       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1389    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1390    o change Qnet to always be the net heat flux, (+upward).
1391      affects (truncation error) output of natl_box exp.: updated
1392    o define the max number of passive tracers in PTRACERS_SIZE.h
1393    o start to test mnc routinely in exp0
1394    o add sea-ice loading (sIceLoad) as a new forcing field.
1395    
1396    checkpoint54b_post
1397    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1398       impressive on Altix and Opteron systems)
1399    o diagnostics can now write NetCDF files through the mnc package
1400    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1401    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1402    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1403      affects (truncation error) output of lab_sea & natl_box exp.: updated
1404    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1405    
1406    checkpoint54a_post
1407    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1408    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1409    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1410    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1411      + internal_wave (shift in writing cg2d_ini_res)
1412    checkpoint54a_pre
1413    
1414    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1415      - modified verification/lab_sea and natl_box_adjoint accordingly
1416    
1417    checkpoint54
1418    checkpoint53g_post
1419    o prepare splitting of thermodynamics: store convect.counter in common block
1420    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1421      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1422    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1423    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1424    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1425    o restore adjointability
1426    
1427    checkpoint53f_post
1428    o modifications that affect AIM experiment results (update output.txt):
1429      - no advection of S at top interface Nr (pkg/generic_advdiff)
1430      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1431    o AIM pkg:
1432      - include stability function into surf.Flux derivative relative to Tsurf
1433      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1434    
1435    checkpoint53e_post
1436    o merged cylindrical coord configuration
1437    o added rotating_tank experiment
1438    checkpoint53e_pre
1439    
1440    checkpoint53d_post
1441    o faulks upgraded: re-generate output.txt that have changed:
1442       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1443    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1444    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1445    o added Sadourny discretization of Coriolis
1446      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1447      - re-enabled use of omega3 (useAbsVorticity)
1448    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1449      vector-invariant equations
1450      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1451    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1452      hopefully without new bugs
1453      - still to do: biharmonic friction for non-hydrostatic w
1454    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1455    o regenerated output for global_ocean_ebm (using -ieee)
1456    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1457      of mom_common/
1458      - simple re-arrangement of instructions within computing loop
1459    checkpoint53d_pre
1460    
1461    checkpoint53c_post
1462    o new version of coupler for AIM+thSIce and Ocean models
1463     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1464     - land: change Evaporation of snow
1465     - aim with thSIce: fix bug in snow-precip.
1466    o changes to calc_gw.F
1467     - bug fix for w^2 term near the bottom boundary
1468     - (hopefully) improve the lateral slip boundary condtions for use with
1469        partial/looped cells
1470      - because the bug fix changes two verification experiments anyway (exp5
1471        and plume on slope), change the lateral boundary condition from half slip
1472        to the value of no_slip_sides
1473    o ebm package wasnt quite up to the parallel task. Fixed that.
1474    o Adjoint of EBM package + verification
1475      * TLM OK
1476      * ADM not sufficient accuracy yet (needs further testing)
1477    
1478    checkpoint53b_post
1479    o Commiting new energy balance model to repository
1480      * package is pkg/ebm
1481      * verif. is verification/global_ocean_ebm
1482      * references are in ebm_driver.F
1483    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1484    C        Global thermohaline circulation. Part I:
1485    C        Sensitivity to atmospheric moisture transport.
1486    C        J. Climate 12(1), 71-82
1487    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1488    C        Global thermohaline circulation. Part II:
1489    C        Sensitivity with interactive transport.
1490    C        J. Climate 12(1), 83-91
1491    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1492    C        Destabilization of the thermohaline circulation
1493    C        by atmospheric eddy transports.
1494    C        J. Climate 7(12), 1870-1882
1495    o Will need long integration testing.
1496    checkpoint53b_pre
1497    
1498    o created pkg/mom_common in preparation for variable viscosity code
1499    o renamed and split ini_mnc_io
1500    o pkg/land: only liquid water can diffuse or run-off
1501    o AIM using land: soil wetness availability account for snow
1502    o added printMapIncludesZeros to EEPARMS namelist
1503    
1504    checkpoint53a_post
1505    o restore TAMC compatiility for exf_constants.h
1506      (no usage of _d in .h)
1507    o Additional storing in KPP in an attempt to fix
1508      TAMC problem with adjoint of KPP code.
1509      (no success...)
1510      Identical code works fine with TAF.
1511    o Fixed verification/natl_box_adjoint experiments.
1512      Initial conditions for Experiments 4 and 5 are now
1513      set to "SEAICE_initialHEFF=0", which is more reasonable,
1514      and hence gives results closer to that of Experiment 2.
1515      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1516    
1517    checkpoint53
1518    o stable checkpoint with up to date adjoint
1519      TLM tests only run for 1st grdchk at the moment. Its unclear if
1520      this is a code problem or a problem with resetting code for g_
1521      variables that is being autogenerated wrong.
1522      Otherwise:
1523       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1524       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1525         are both still in chaos following their security messes.
1526    
1527    checkpoint52n_post
1528    o various build (mostly genmake2) changes including:
1529      - ability to build/run more easily within Cygwin and MacOS X
1530      - more complicated Makefiles with a stronger dependence on Gnu Make
1531    o pkg/seaice modifications
1532      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1533        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1534        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1535      - changed proxy for geostrophic velocity and updated
1536        verification/lab_sea/results/* accordingly
1537      - removed ADI dynamic solver from pkg/seaice
1538      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1539        they caused a segmentation fault under certain circumstances
1540      - removed unused field WATR
1541    o bug fix in exf-package:
1542      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1543         now reflect that.
1544    o small fixes in the cal-package:
1545      - set reference date to first of January for the 'model'-calendar
1546      - failing of cal_CheckDate in cal_FullDate now actually results in a
1547        warning
1548    o small modifications in exf-package to increase flexibility:
1549      - change climtempfreeze from a constant to a runtime parameter that
1550        is specified in data.exf_clim (default = -1.9)
1551      - introduce runtime parameter windstressmax (default = 2.0) that is
1552        specified in data.exf
1553    o fix in pkg/thsice:
1554      - update Evap (Tsf changes) to be consistent with Latent heat flux
1555      - maintain snow precipitation unchanged (even if Tsf >=0).
1556     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1557    
1558    checkpoint52m_post
1559    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1560      this does not change any of the results, because myIter=0 in swfrac always
1561      lead to jwtype=2 (the default anyway), but the call makes little sense
1562      as a default
1563    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1564    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1565      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1566    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1567    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1568    o extending useSingleCpuIO option to work with new exch2 I/O format
1569      - old-style, missing-tile I/O is still accessible by defining CPP
1570        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1571    o monitor package can write to NetCDF files and/or STDOUT
1572    o fix re-definition bug in MNC_GRID_INIT_ALL()
1573    o doc/api_reference added
1574      - a framework for building an API Reference Manual using all
1575        the "protex" comments embedded in the code
1576      - see pkg/generic_advdiff, pkg/mnc for examples
1577    o MNC:
1578      - make myThid the last argument for all subroutines
1579      - new default for the grid files: NO halos
1580      - add useMNC and other run-time flags
1581      - separate per-file-group handling of the unlimited dimension
1582      - early initialization of MNC w/ flags read at the eeboot stage
1583        and lookup tables set in initialize_fixed
1584      - write all MNC output to a freshly-created directory
1585    o thermodynamics sea-ice (thsice) is now tested with testreport.
1586    o test exp. advect_cs: use the standard cs32 grid ; update output.
1587    o Added functionality to grdchk:
1588      pick global i,j,k position (or nearest wet) where to perform check.
1589    
1590    checkpoint52l_post
1591    o new land formulation:
1592      a) use ground enthalpy as prognostic variable to ensure exact
1593         energy conservation.
1594      b) account for water temperature and for latent heat of freezing
1595         in all processes (rain, run-off, ground storage)
1596      c) compute surface and ground temperature implicitly.
1597    o aim_v23 modification for new land model:
1598      a) Treat separately land / ocean / sea-ice surface fluxes
1599         to allow implicit computation of land & sea-ice surface temp.
1600      b) add snow precipitation.
1601    checkpoint52l_pre
1602    
1603    o fix problem (when 1 tile is empty) in min/max monitor.
1604    o fix bug in timeAve (u,vZetatave in common block)
1605    o no restoring terms under ice for pkg/seaice
1606    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1607    o bug fix for pkg/seaice pickups
1608    o change MNC call locations and add coordinate attributes
1609    o mask vorticity at the corner ; affects global_ocean.cs output
1610    o fix ini_curvilinear_grid ; test CS experiments with mpi
1611    o aim.5l_cs: modify sea-ice fraction input file ; update output
1612    o exf: Adding simple range check routine for exf fields after read
1613    
1614    checkpoint52k_post
1615    o removed top-level directory "diags"
1616      - we migrated these functions to pkg/timeave a long time ago
1617    o fixed bug introduced in pkg/monitor
1618    o accuracy ctrlprec = 32 insuffient for gradient checks using
1619      averaged fields (I/O via cost_averages)
1620      -> use ctrl.h in active_file*.F to control I/O precision.
1621    o paramter list of CALL ADTHE_MAIN_LOOP
1622    o added initial do_the_model_io to ecco
1623    o set all ...Freq to zero after cost_final
1624      taveFreq, dumpFreq, pChkptFreq
1625    o MAIN and ECCO differentiability restored
1626    
1627    checkpoint52j_post
1628    o fix nchklev in tamc.h for global_ocean...
1629    o Bringing flow and store directives up-to-date
1630    o Really weird thing!
1631      call do_the_model_io from the_main_loop with parameters
1632      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1633      TAF places a faulty re-call of initialise_varia
1634      after cost_final call which should not be there!
1635    checkpoint52j_pre
1636    
1637    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1638      error messages
1639    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1640    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1641      debug output
1642    o modfied mdsio_writefield.F to handle non-global files under exch2
1643    o update AIM Cubed-Sphere exp (aim.5l_cs):
1644      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1645    o update AIM Equatorial Channel exp:
1646      use standard aim_v23 pkg and change the SST fields to be more realistic.
1647    o globalFile now works with exch2
1648    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1649      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1650    o limit timeave output for hi-res integrations
1651    
1652    checkpoint52i_post
1653    o removed CPP_EEOPTIONS.h from verification/*/code
1654    o updated the tiling for global_ocean_pressure
1655    checkpoint52i_pre
1656    
1657    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1658      the old pkg/aim).
1659    
1660    checkpoint52h_pre
1661    o shortened offending lines in exch2_send_rx?.template
1662    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1663    o genmake2: add build & execute test for NetCDF code
1664    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1665      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1666    o added useSingleCPUIO flag to monitor.F and mon_out.F
1667    o added temporary hack for sea-ice dynamics on the cube:
1668      metric terms are ignored and it is assumed that
1669      there is no sea-ice on cube faces 1, 2, 4, and 5.
1670    
1671    checkpoint52f_post
1672    o added exch2 cube routines to pkg/exch2
1673    o modified hs94.cs-32x32x5 to use it
1674    o added new grid files to hs94.cs-32x32x5
1675    checkpoint52f_pre
1676    
1677    checkpoint52e_post
1678    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1679      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1680    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1681      to work with implicit vertical advection and AB ;
1682    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1683    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1684     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1685    checkpoint52e_pre
1686    
1687    o fix bug in impldiff when Nr=1 or Nr=2.
1688    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1689    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1690    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1691      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1692    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1693    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1694    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1695    
1696    checkpoint52d_post
1697    o re-tiled many expts to allow comparison in multi-processor mode
1698      - updated output accordingly
1699      - changed hs94.128x64x5 to use intial T from file rather than use the
1700        random number generator
1701    o add infrastructure in model routines for fizhi and gridalt packages
1702    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1703    o changes to permit hi-res, cubed-sphere, configuration
1704      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1705      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1706      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1707        of surface winds for the cube
1708      (A verification experiment, based on global_ocean.cs32x15, but with
1709       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1710       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1711       complete with example surface forcing files and matlab scripts to look
1712       at the output and compare it with that of global_ocean.cs32x15.)
1713    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1714       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1715       to conform to the common rule.
1716    o check-in the first version of the coupler + interfaces for multi-components
1717       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1718       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1719       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1720       - ocean and atmos. share the same horizontal grid (no interpolation).
1721       - exchanges between component and coupler is done in forward_step
1722    o new verification experiment, cpl_aim+ocn:
1723       coupled ocean - AIM atmosphere on cs32 grid.
1724    
1725    checkpoint52d_pre
1726    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1727    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1728    
1729    checkpoint52c_post
1730    o Fixing OPTIONS files for use of exf:
1731      - ALLOW_ECCO not needed
1732      - ECCO_CPPOPTIONS.h should not be included from
1733        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1734        as has been the case in the past
1735      - All cal/exf related options are currently set in
1736        single header file. Should remain so until we
1737        agree on a consistent new policy.
1738    o Removed all CPP options for cal package.
1739      cal has no more CPP options.
1740    o modified STOREs in GAD_ADVECTION
1741    o corrected key comp. for passkey
1742    
1743    checkpoint52b_post
1744    o new version: "thsice" of thermodynamic sea-ice pkg:
1745     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1746     - modify fluxes but do not change theta directly;
1747     - light cleaning of bulk_force pkg (still needed with thsice).
1748     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1749       + output_thsice.txt to test thsice & bulk_force pkgs.
1750    o put back grid & coriolis monitor output.
1751    checkpoint52b_pre
1752    
1753    o call "do_the_model_io" at the beginning (=> dump initial state)
1754    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1755    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1756      (need info on NUMBER_OF_PTRACERS)
1757    o missing PTRACERS headers in some routines
1758    o default tamc.h in pkg/autodiff supposed to crash
1759      to ensure proper customization
1760    
1761    checkpoint52a_post
1762    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1763      - moved surfaceTendencyTice from pkg/seaice to main code
1764      - subroutine FREEZE_SURFACE now limits only surface temperature
1765        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1766        => new output.txt for global_ocean.cs32x15 & global_with_exf
1767      - keep the old version of FREEZE for backward compatibility;
1768        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1769      - corresponding modifs for TAF directives
1770    o added surface flux output variables to TIMEAVE_STATVARS
1771    o time-averaged output for pkg/ptracers
1772    o fix problem with ECCO-related divided adjoint
1773      snapshot file was missing some ad-variables,
1774      but no warning issued by TAF
1775    
1776    checkpoint52a_pre
1777    o some bug fixes for #undef REAL4_IS_SLOW
1778    
1779    checkpoint52 = ecco_c52_e35
1780    o after testing adjoints of checkpoint51u_post
1781    
1782    checkpoint51u_post
1783    o this is the post-merge tag of the ecco-branch
1784      (needs another clean checkout and re-testing)
1785    o various natl_box_adjoint configs and results
1786      but no input fields
1787    o obcs adjoint not yet merged!
1788    o adding ECCO global 1x1 and 2x2 degree configs
1789    o updated/extended some store directives for seaice
1790    o pkg/ecco now containes ecco-specific part of cost function
1791    o top level routines the_main_loop, forward_step
1792      supersede those in model/src/
1793      previous input data.cost now in data.ecco
1794      (new namelist ecco_cost_nml)
1795    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1796    
1797    checkpoint51t_post
1798    o this is the pre-merge tag of the ecco-branch
1799    
1800    checkpoint51s_post
1801    o cleanup: removed various obsolete #define-s
1802    o pkg/grdchk
1803      - renamed 'ph-grd 3' to 'grad-res'
1804      - merged from ecco-branch
1805        (remaining bug fixes for obcs gradient checks)
1806      - additional high-precision output for testreport
1807        (grep for 'precision_grdchk_result')
1808    
1809    checkpoint51r_post
1810    o cleaned up or removed CPP_OPTIONS.h files
1811    o updated results for some of the tests to reflect the new
1812      optfiles (-ieee: -O0 instead of -O3)
1813    
1814    checkpoint51q_post
1815    o cd_code:
1816      - moved cd_scheme.F -> cd_code_scheme.F
1817      - separate read_checkpoint from cd_code_ini_vars.F
1818      - separated cd_code part from write_checkpoint
1819      - updated AD_SOURCE, generated .flow
1820      - added CD_CODE_VARS.h to the_main_loop
1821      - Moving cd_code specific store dir.s to pkg/cd_code
1822    o ctrl package totally restructured
1823      - pack/unpack now optional and decoupled from
1824        xx_/adxx_ I/O
1825      - ctrl_pack/unpack cleaned
1826        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1827      - confined inclusion of AD_CONFIG.h to where necessary.
1828    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1829    
1830    checkpoint51p_post
1831    o create initial cd_code package
1832      - WARNING: the initialization of fields within packages
1833        is broken because INI_FIELDS (where READ_CHECKPOINT is
1834        called) is called *before* PACKAGES_INIT_VARIABLES.
1835        This seems to be backwards since
1836        1) its important to initially zero the entire field including
1837           the "halo" region
1838        2) zeroing needs to be done *before* reading pickup info
1839           and the pickup call might or might not happen in any
1840           particular run
1841      - this needs an overhaul for R2
1842    o cleanup verification/*/code/GMREDI_OPTIONS.h
1843    o cleanup testreport
1844    
1845    checkpoint51o_post
1846    o bringing AD-related verif's up to date with genmake2
1847      - carbon/
1848      - global_ocean.90x40x15/
1849      - hs.94.1x64x5/
1850      - (front_relax/ )
1851    o (more) consistent directory structure for AD-related verif.'s
1852    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1853    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1854    o bug fix in find_alpha.F for MDJWF:
1855      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1856        change rho -> rho-rhoConst
1857      - replace call find_rho to find_rhonum
1858    o initialisation of rFlx extended to full array (required by TAF)
1859      and shifted to thermodynamics
1860    o removed PTRACERS.h in ptracers routine
1861    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1862    o Correcting initialisations for fVerU, fVerV.
1863    o helping TAF to recognize dependency on kUp for
1864      fVerU, fVerV
1865    o Replacing delZ by delR in pkg/ctrl/
1866    checkpoint51o_pre
1867    
1868    o undid all of cp51 pending some cleanups and discussion
1869    o added the [#include "AD_CONFIG.h"] statement to all files that need
1870       it for adjoint/tl #defines
1871     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1872     o removed tools/genmake since it no longer works
1873    
1874    checkpoint51n_post
1875    o modifications to make FREEZE flux visible to pkg/kpp
1876      - moved surfaceTendencyTice from pkg/seaice to main code
1877      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1878      - subroutine FREEZE now limits only surface temperature
1879        (this means new output.txt for global_ocean.90x40x15,
1880         global_ocean.cs32x15, and global_with_exf)
1881    o added surface flux output variables to TIMEAVE_STATVARS
1882    
1883    checkpoint51n_pre
1884    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1885    o added [#include "AD_CONFIG.h"] to all files that use the following
1886      defines:
1887      - ALLOW_ADJOINT_RUN
1888      - ALLOW_TANGENTLINEAR_RUN
1889      - ALLOW_ECCO_OPTIMIZATION
1890    
1891    checkpoint51m_post
1892    o incorporating changes to get TAMC/TAF working in genmake2
1893      - added new TAMC/TAF targets to the Makefile
1894      - various cleanups related to package handling
1895      - these changes should have no impact on the forward model
1896    
1897    checkpoint51l_post
1898    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1899     - faster algorithm for cal_addtime.F
1900     - higher precision arithmetic, where needed
1901     - pkg/exf *startdate variables changed from calendar date to
1902       model integration time
1903    
1904    checkpoint51l_pre
1905    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1906    o enable to apply restoring on S & T only in a latitude band.
1907    o update output (external_forcing_surf modif. change truncation errors)
1908       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1909    
1910    checkpoint51k_post
1911    o change default to: useNHMTerms=.FALSE.
1912     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1913       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1914     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1915        exp1, ideal_2D_oce
1916     - change data file of oceanic exp (leave the results unchanged for now)
1917       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1918    o set gravitySign automatically according to the vertical coordinate used
1919      (and change sign: back to "logical" value: +1 when R increases downward)
1920    o added an include barrier to the default CPP_OPTIONS.h and
1921      removed the #include "PACKAGES_CONFIG.h" from it
1922    o fix a bug in mom_fluxform (from chk51j_post)
1923    
1924    checkpoint51j_post
1925    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1926    o adjusted some flow directives (dynamics, thermodynamics)
1927    o added cubed-sphere case to test cost function
1928    o heckpoint_lev?_directives.h now include
1929      pkg-specific directives, whenever those are enabled.
1930    o Moving pkg-specific flow directives to corresponding pkg
1931      Moving pkg-specific differentiation list to corresponding pkg
1932      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1933      ---> conventions are
1934           - pkg_ad.flow
1935           - pkg_ad_diff.list
1936           - pkg_ad_check_lev?_dir.h
1937    
1938    checkpoint51i_post
1939    o merge of the branch-genmake2
1940      - knowingly breaks the older genmake
1941      - automatic generation of all ALLOW_${PKG_NAME} defines
1942      - new testreport supersedes older testscript
1943    o large number of package inclusion and header cleanups
1944    checkpoint51i_pre
1945    
1946    o new output for adjoin of global ocean vector invariant
1947    o fix for checkpoint of thermodynamic seaice and bulk_force
1948    o Steph gchem various cleanups
1949    
1950    checkpoint 51h_pre
1951    o fixed some single quotes
1952    o modify gchem pkg to be more versatile
1953    o modifications to clean up dic pkg
1954    o add pkg/cfc
1955    
1956    checkpoint51g_post
1957    o provide links for ARPACK and ADM*TLM
1958    o start removing verification/vero/
1959    o update AD-related stuff
1960      (in particular some IF-statements in model/src/ routines)
1961    o adding to verification/global_ocean.90x40x15/ adjoint of
1962      vector invariant setup
1963    
1964    checkpoint51f_post
1965    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1966    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1967      of tracer Green's fucntions for ocean inversion project.
1968    
1969    checkpoint51f_pre
1970    o Added on-the-fly spatial interpolation capability
1971        "USE_EXF_INTERPOLATION" to pkg/exf.
1972      - This is a temporary Cartesian-grid hack until
1973        the super-duper ESMF coupler becomes available.
1974      - See verification/global_with_exf/README for usage example.
1975      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1976        flags and modified pkg/seaice accordingly.
1977    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1978        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1979        non-local transport term.
1980    
1981    checkpoint51e_post
1982    o pkg/mom_vecinv:
1983      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1984      - add time-ave diagnostic of vorticity advection.
1985    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1986    o atmospheric geopotential: - include water vapor effect;
1987                                - use p^kappa in p* scaling.
1988    o land pkg: read initial state from files.
1989    o AIM : add stratospheric drag in the upper level
1990    
1991    checkpoint51d_post
1992    o change function ILNBLNK (=> last non-blank char.) to return zero
1993      (instead of the string length) when the string. char is empty
1994    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1995    o modif's to restore TAMC compatibility
1996      - avoid "_d" constructs in PARAMETER declarations
1997      - avoid interrupting lines by comment lines
1998    o Use cluster local disks for purely local I/O
1999      vs. globally visible disks needed for ctrl stuff
2000      (merged from ecco-branch)
2001      - new active_file_loc... and mdsio_..._loc routines
2002      - affected packages: autodiff, ctrl, grdchk, mdsio
2003    
2004    checkpoint51c_post
2005    o introducing integer flag debugLevel
2006      - debLevZero: suppress all output
2007      - debLevA: standard
2008      - debLevB: equivalent to current debugMode=.TRUE.
2009    o introducing pathname variable mdsioLocalDir for mdsio
2010      that can be specified at runtime
2011      (relevant for cluster I/O to local disk)
2012    `
2013    >>>checkpoint51b_post
2014    adjoint of ptracers
2015    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2016    o extended state in checkpoint_lev?, etc.
2017    o alternative ctrl/cost with tr1 or ptracer
2018    o new comlev1_bibj_ptracers
2019    o new ptracers.flow
2020    o made ptracers_forcing same as external_forcing_s
2021    o added verification for adjoint with ptracers
2022      - adm. grdchk fail so far
2023      - tlm. grdchk OK
2024      - checked tapelev/comlev recomputations: OK
2025    <<<checkpoint51b_pre
2026    
2027    checkpoint51a_post
2028    o added code for biogeochemistry package
2029      - new pkgs: dic, gchem
2030      - new subroutine in ptracers
2031    o modify code for biogeo packages
2032      - in model/src and pkg/ptracers
2033    
2034    checkpoint51
2035    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2036      - autodiff, ctrl, exf, grdchk, seaice
2037      kept separate packages
2038      - cost, ecco, obcs
2039    o updating verification/internal_wave, verification/lab_sea
2040      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2041    
2042    checkpoint50i_post
2043    o Preparing next differentiable checkpoint and sync
2044      of MAIN vs. ecco-branch
2045      - 1st step: this one is differentiable
2046      - 2nd step: next(! not this) checkpoint will have updated packages
2047                  from ecco-branch)
2048    
2049    checkpoint50h_post
2050    o new package "land": provide surface BC for AIM.
2051    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2052    o AIM: use true log-P extrapolation for near surface temp (= as in
2053        F.Molteni paper) ; update aim.5l_cs output.
2054    o New variable in PARM03 for more flexible pickups
2055    o somewhat cleaned package initialisation sequence for
2056      ctrl/ cost/ ecco/ in packages_... routines
2057    
2058    checkpoint50g_post
2059    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2060      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2061      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2062        made the default because of faster convergence than ADI
2063    
2064    checkpoint50f_post
2065    o exf totally restructured
2066      - replaced all exf_set_ routines by one generic exf_set_gen.F
2067        and made sure it's still differentiable
2068      - split exf_getffields.F into new exf_bulkformulae.F
2069      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2070      - updated adjoint/makefile and relevant verif. accordingly
2071    
2072    checkpoint50f_pre
2073     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2074          + change Evap over land. (update aim.5l_cs output)
2075     o added missing .cvsignores and made uniform across expts
2076     o changed configuration of tidal_basin_2d expt
2077     o added pkg/debug functions for tracing code in fatal crashes
2078     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2079     o new fn in pkg/monitor to stop model if solution grows too big
2080     o removed lots of single quotes from comments
2081    
2082    checkpoint50e_post
2083    o make KPP work with PTRACERS
2084     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2085       nearly a copy of kpp_transport_s
2086     - there is no analogue to SurfaceTendencyS, so I have to use
2087       gPtr(of the surface layer) instead
2088    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2089    checkpoint50e_pre
2090    
2091    checkpoint50d_post
2092    o change kpp output from multiple-record state files to single-record state
2093      files analogous to write_state.F
2094    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2095      analogous to the cg2d-related output.
2096    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2097      so that writing to internal file fn (with length 512) fails.
2098    checkpoint50d_pre
2099    
2100    checkpoint50c_post
2101    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2102    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2103    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2104    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2105    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2106    
2107    checkpoint50c_pre
2108    Merging from release1_p13:
2109    o bug fix for pkg/seaice dynamic solver
2110    o Added SEAICE_initialHEFF to pkg/seaice
2111    
2112    checkpoint50b_post
2113    o store u*,v* in gU,V instead of in guNm1,gvNm1
2114    o in order to put the momForcing out of the Adams-Bashforth:
2115      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2116      to timestep.F
2117    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2118    o re-generate output for highly sensitive test-exp:
2119       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2120    
2121    checkpoint50b_pre
2122    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2123    o corrected CPP option mismatch in exf_Bulk... functions for case
2124      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2125    
2126    checkpoint50a_post
2127    o Bug fix for merging between c50 and KPP.
2128      ikey was passed from thermodynamics to kpp_calc via
2129      common block rather than being recomputed in kpp_calc,
2130      in contradiction with new key itdkey.
2131      New key ikppkey created, and tamc.h headers updated.
2132    
2133    checkpoint50
2134    - 2nd step of merge with ecco-branch:
2135      merge changes in ecco-branch back into main trunk
2136    - bug fix in find_alpha
2137    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2138    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2139    - merged some sliced AD support routines
2140    
2141    checkpoint49
2142    merged from ecco-branch:
2143    o exf:
2144      - Enable initialisation of forcing fields to constant
2145        (runtime) values.
2146      - in exf_getffields.F
2147        Reduce i-/j-loop to interior domain, discarding overlaps.
2148        That also fixes wrong TAF-key computations for key_1, key_2
2149        with bulf formulae.
2150      - exf_init.F modify #ifdef for exf_init_evap
2151      - exf_getffieldrec.F, ctrl_getrec.F
2152        The following INT-usages are not safe:
2153          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2154          fldcount = int(fldsecs/fldperiod) + 1
2155        and were modified.
2156    o autodiff: checkpoint_lev...
2157      - updated storing for bulk formulae (some arrays were missing)
2158      - added state for seaice package
2159      - synchronized with main branch
2160    o DIVA:
2161      Modif.s in
2162      - the_main_loop.F
2163      - the_model_main.F
2164      and added cost_final_restore.F cost_final_store.F
2165      o With these changes, it is possible to fully separate
2166        the first forward run to compute the cost function (mdthe_main_loop)
2167        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2168        into separate model executions.
2169        This enables better tuning of DIVA to given queue sizes.
2170      o Loss of cost function value in consecutive DIVA runs is
2171        fixed by storing to 'costfinal' file.
2172      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2173        beginning/end of adjoint integration is accounted for.
2174      The current changes apply to TAF-1.4.26.
2175      TAF has one remaining bug, requiring one manual change
2176      (see MITgcm manual).
2177    o cal: synchronized between MAIN and ecco-branch
2178    
2179    checkpoint48i_post
2180    o Changes to restore differentiability of code w.r.t. previous tag
2181      (mostly adding new routines to make list and replacing
2182      pressure by totPhiHyd).
2183    o Updated and merged grdchk package
2184      - has both ADM and TLM checks
2185      - works for single- and multi-proc.
2186      - output cleaned
2187      - worked successfully for parallel DIVA
2188    o genmake:
2189      - Adding -platform=SP4
2190      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2191    o Modif. for DIVA:
2192      ctrl_unpack should not be called in intermediate DIVA interval.
2193      (similar thing would apply for active files such as
2194      tbar, sbar, psbar, which should not be reinitialised;
2195      only relevant for ecco-branch)
2196    
2197    checkpoint48h_post
2198    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2199    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2200    o Added SEAICE_initialHEFF to pkg/seaice
2201    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2202    
2203    checkpoint48g_post
2204    --- EOS:
2205    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2206      store total Potential in totPhyHyd for diagnostics & EOS.
2207    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2208    --- Pressure/geopotential gradient:
2209    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2210    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2211      ( changes results of global_ocean_pressure )
2212    o NLFS + z-coord.: add eta*Rho' contribution.
2213    o accurate phiHyd when using interface-W at the middle between 2 centers
2214     ( changes results of ideal_2D_oce )
2215    o includes r* 2nd term in potential gradient.
2216    
2217    checkpoint48f_post
2218    Merging from release1_p12:
2219    o Modifications for using pkg/exf with pkg/seaice
2220      - improved description of the various forcing configurations
2221      - added basic radiation bulk formulae to pkg/exf
2222      - units/sign fix for evap computation in exf_getffields.F
2223      - updated verification/global_with_exf/results/output.txt
2224    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2225      (SBO) core products, including oceanic mass, center-of-mass,
2226      angular, and bottom pressure (see pkg/sbo/README.sbo).
2227    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2228      to avoid negative values in shallow regions.
2229      - updated verification/natl_box/results/output.txt
2230      - updated verification/lab_sea/results/output.txt
2231    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2232    o Added useSingleCpuIO option (see PARAMS.h).
2233    o Updated useSingleCpuIO option in mdsio_writefield.F to
2234      work with multi-field files, e.g., for single-file pickup.
2235    o pkg/seaice:
2236      - bug fix in growth.F: QNET for no shortwave case
2237      - added HeffFile for specifying initial sea-ice thickness
2238      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2239    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2240      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2241    o pkg/seaice:
2242      - adjoint-friendly modifications
2243      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2244    
2245    checkpoint48e_post
2246    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2247    o dynamics: change definition of computational domain & adapt mom_fluxform
2248      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2249    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2250        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2251        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2252        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2253        inverted_barometer solid-body.cs-32x32x1
2254      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2255    
2256    checkpoint48d_post
2257    o in preparation for r*:
2258     a) use pre-computed gradient of hydrostatic potential:
2259        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2260     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2261        => affects results of glob_oce_pressure (different truncation error)  
2262      update output.txt of ideal_2D_oce & global_ocean_pressure
2263    
2264    checkpoint48d_pre
2265    o in preparation for r*:
2266      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2267      pass the 2 comp. of the grad. as arguments to momentum S/R.
2268      but for the moment, only used if it does not change the results.
2269    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2270    
2271    checkpoint48c_post
2272    Modifications in treatment of initial flux forcing controls
2273    to avoid extra storing of flux fields.
2274    
2275    checkpoint48c_pre
2276    o Added tidal_basin_2d experiment (currently 1D!)
2277    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2278    
2279    checkpoint48b_post
2280    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2281     (modification to pressure gradient not yet implemented)
2282    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2283      (for U & V) that are used for vertical advection of momentum.
2284    
2285    checkpoint48a_post
2286    o In preparation for r*, use temp. array to compute vertical transport
2287       in flux-form momentum pkg. => change results of few test-exp.
2288      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2289                        lab_sea, natl_box & plume_on_slope
2290    
2291    checkpoint48
2292    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2293    
2294    checkpoint47j_post
2295    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2296    o moved adexch from forward_step to addummy_in_stepping
2297    o added exch in ctrl_map_...
2298    o aveFreq.=0. at end of cost_final to avoid overwrite in
2299      reverse checkpointing loop
2300    o Yet more changes in gmredi:
2301      * adgmredi_calc_tensor
2302        avoiding all recomputation of gmredi_slope_limit
2303      * adgmredi_x/y/rtransport
2304        added flag for excessive storing to avoid recomp. of
2305        u/v/rtans, dTdx/y/z
2306        -> this is not really necessary and very memory-consuming
2307      * adgmredi_slope_psi:
2308        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2309      * gmredi_slope_limit
2310        re-activated full calculation of taperfct for case 'ac02'
2311    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2312    
2313    checkpoint47i_post
2314    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2315    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2316      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2317    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2318    o gmredi: fix few bugs.
2319    
2320    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2321    This will be a good checkpoint to plug into the ecco-branch.
2322    o few modif.'s to get latest version adjointed
2323      (mainly kick out code in ini_linear_phisurf)
2324    o modif's to run adjoint with exactConserv
2325    o case GM_BOLUS_ADVEC should be cleaned
2326      S/R gmredi_slope_psi should be cleaned
2327    o verification/carbon now has exactConserv=.TRUE.
2328    
2329    checkpoint47g_post
2330    o time-average AIM output: becomes independent from statvars time-average
2331      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2332    o After TAF bug fix:
2333      Tested adjoint of gmredi package.
2334      Tests were done with checkpoint47 rather than with latest
2335      checkpoint47f_post since the latter is broken for the adjoint
2336      verification/carbon/ contains both ADM and TLM gradient checks.
2337    Here they are, before they get changed/lost/stolen.
2338    Mostly modif.'s to fix numerical sensitivities.
2339    Gradient checks OK for
2340    - GM_taper_scheme:
2341      * clipping
2342      * ac02
2343      * linear
2344      * glw91
2345      * dm95
2346      * ldd97
2347    - GMREDI_OPTIONS:
2348      * GM_VISBECK_VARIABLE_K
2349      * GM_NON_UNITY_DIAGONAL
2350      * GM_EXTRA_DIAGONAL
2351      * GM_BOLUS_ADVEC
2352    in conjunction with data.gmredi parameters to be checked in
2353    in a few minutes under verification/carbon/code/
2354    
2355    checkpoint47f_post
2356    Merging from release1_p10:
2357    o modifications for using pkg/exf with pkg/seaice
2358      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2359        and SEAICE_EXTERNAL_FLUXES
2360      - pkg/exf CPP options EXF_READ_EVAP and
2361        EXF_NO_BULK_COMPUTATIONS
2362      - usage examples are Experiments 8 and 9 in
2363        verification/lab_sea/README
2364      - verification/lab_sea default experiment now uses
2365        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2366    
2367    checkpoint47e_post
2368    o created a tag prior to creating a branch
2369    
2370    checkpoint47d_post
2371    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2372      at the bottom boundary had an erroneous half slip boundary condition
2373    o added bottom drag and no slip boundary condition capabilities to
2374      oceanic pressure coordinates code
2375    o added new verification experiment global_ocean_pressure, this experiment is
2376      also described in the tutorial section of the manual
2377    checkpoint47d_pre
2378    
2379    checkpoint47c_post
2380    o Added a verification experiment for a global cubed-sphere ocean run
2381      -  verification/global_ocean.cubed32x32x30
2382      -  uses pkg/therm_seaice and pkg/bulk_forcing
2383    
2384    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2385    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2386      when using P-coordinate; only implemented for atmospheric config.
2387    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2388      NOTES: requires option NONLIN_FRSURF to be "#define".
2389    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2390    
2391    checkpoint47b_post
2392    Merging from release1_p9:
2393    o pkg/seaice
2394      - removed GOTO's and added taf directives
2395      - double precision constants to reduce the g77 (Linux)
2396        to F77 (SGI) differences reported in release1_p8
2397    o tools/genmake
2398      - added SGI options
2399    o verification/testscript
2400      - updated to that of checkpoint47a_post
2401    o verification/global_ocean.90x40x15/input/eedata
2402      - modified for SGI f77 compatibility
2403    o verification/lab_sea
2404      - added description of sea-ice model
2405      - added missing matlab routines
2406      - added test of thermodynamics parallelization
2407    
2408    checkpoint47a_post
2409    o new pkg: aim_v23
2410     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2411       for now, keep the same surface forcing as before.
2412     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2413     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2414     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2415    o add diagnostic of surface correction term in monitor output
2416    
2417    o bulk_force and therm_seaice
2418    - Two packages:  bulk_force (Bulk forcing)
2419      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2420    - Earlier integration from Stephaine Dutkiewicz
2421      and Patrick Heimbach.
2422    - Two ifdef statements for compile time,
2423       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2424    
2425    checkpoint47
2426    differentiable version of checkpoint46n_post
2427    o bug fix in quasihydrostaticterms
2428    o * "clean" adjoint code (in terms of extensive recomputations)
2429        can now be obtained for all GMREDI options (i.e. for
2430        - GM_VISBECK_VARIABLE_K
2431        - GM_NON_UNITY_DIAGONAL
2432        - GM_EXTRA_DIAGONAL
2433        - GM_BOLUS_ADVEC )
2434      * However, wrong gradient check problem remains unsolved.
2435      * New CPP options have been introduced for different
2436        tapering schemes
2437    o external_fields_load now part of differentiation list
2438    o pressure needs multiple storing;
2439      would be nice to have store_pressure at beginning or
2440      end of forward_step, e.g. by having phiHyd global (5-dim.)
2441      (NB: pressure is needed for certain cases in find_rho,
2442      which is also invoked through convective_adjustment).
2443    o recomputations in find_rho for cases
2444     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2445    o #define ATMOSPHERIC_LOADING should be differentiable
2446    o ini_forcing shifted to begining of initialise_varia
2447    o Incorporating QNVS line search routines into MITgcm
2448      (this is separate code, and therefore not under pkg)
2449      lsopt/, optim/
2450    o Updated verification/carbon/
2451      - #define GM_VISBECK_VARIABLE_K
2452      - GM_taper_scheme    = 'ldd97'    
2453    
2454    checkpoint46n_post
2455    Merging from release1_p8:
2456    o verification/natl_box:
2457      updating new external_fields_load routine
2458    o New package: pkg/seaice
2459      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2460      The sea-ice code is based on Hibler (1979-1980).
2461      Two sea-ice dynamic solvers, ADI and LSR, are included.
2462      In addition to computing prognostic sea-ice variables and diagnosing
2463      the forcing/external data fields that drive the ocean model,
2464      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2465      The implied surface heat flux is then stored in variable
2466      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2467      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2468      non-local transport term.  Because this call precedes model
2469      thermodynamics, temperature under sea-ice may not be "exactly" at
2470      the freezing point by the time theta is dumped or time-averaged.
2471      N.B.: fairly large differences in accuracy occur across
2472            different platforms/compilers; comparison between
2473            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2474            generated output gives:
2475       T           S           U           V
2476      C D M    c        m  s        m  s        m  s        m  s
2477      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2478      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2479      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2480    
2481      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2482    o GAD:
2483      - generated new common blocks to account for call of
2484        same gad routines with differing traceridentities
2485        (needed to modify tracerIdentity indices in GAD.h)
2486      - generated separate common blocks for case useCubedSphereExchange
2487        (Department of Futurology)
2488      - parameter lists to gmredi_?transport: added tracerIdentity
2489      - added new key indices to tamc.h
2490    o external_fields_load:
2491      - added this routine to TAF list
2492      - needed to make some common blocks global and additional storing
2493        along the same lines as exf package (checkpoint_lev?_directives.h)
2494    o exf:
2495      updated external forcing package
2496      - bug fixes carried over from ecco-branch
2497        (missing OBCS_OPTIONS.h in two routines)
2498      - enable easy to use "no forcing".
2499      - added exf I/O for atmospheric loading
2500      - added exf I/O for runoff data
2501      - transfered scaling between exf <-> MITgcm to exf namelist
2502    o Adding new verification experiment global_with_exf.
2503      This verification experiment is almost identical to the
2504      global_ocean.90x40x15 experiment, except that it uses
2505      the exf (and cal) package instead of the
2506      external_fields_load routine (cf README file).
2507    
2508    checkpoint46m_post
2509    o modified testscript to return -- when there are no lines of "%MON" output
2510    o added new flag "quasiHydrostatic" for QH mode
2511      and new routine quasihydrostaticterms()
2512    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2513      New routine: mom_u_coriolis_nh()
2514    o fixed sign of non-hydrostatic metric terms in u and v equations.
2515      Depend on correct sign of gravitySign.
2516    o added work.pc* to .cvsignore in aim directories using ifc
2517    o introduced flag for controllin non-hydrostatic metric terms
2518    o removed gravitySign from PARM04
2519    o switched to g77/ifc from pgf77 in aim experiments
2520    
2521    checkpoint46l_post
2522    o made convective adjustment work with pressure coordinates:
2523     - changed the direction of k-loop in convective_adjustment.F for the
2524       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2525     - adjusted the reference pressure k-index in convective_adjustment.F
2526     - adjusted the convection condition in convect.F (in analogy to
2527       calc_ivdc.F)
2528     - convective_adjustment no longer computes anything on the halos
2529     - removed the warnings about negative salinity from find_rho.F and
2530       find_alpha.F; instead the new routine look_for_neg_salinity, called
2531       at the beginning of find_rho, find_alpha, and find_beta, does a
2532       check of the entire slice, if CPP-option
2533       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2534    checkpoint46l_pre
2535    
2536    checkpoint46k_post
2537    o fixed the verification/global_ocean.90x40x15 experiment:
2538     - new bathymetry (the world according to A., JMC, and M.)
2539     - new initial fields and forcing fields (*.bin files)
2540     - new POLY3.COEFFS (for the next release one should switch to a full
2541       equation of state: JMD95P or MDJWF)
2542     - fixed several errors and redundancies in the data file
2543     - experiment uses looped cells
2544     - added matlab directory with diagnostic scripts for plotting of output
2545    
2546    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2547     - read AIM physics parameters from a file (data.aimphys)
2548     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2549    
2550    checkpoint46j_post
2551    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2552    o move wVel computation at the end of the time step, in S/R integr_continuity
2553    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2554    o update timeave pkg for wVel diagnostic.
2555    checkpoint46j_pre
2556    
2557    checkpoint46i_post
2558    o Clean up AIM package (and keep the results unchanged):
2559      include CPP_OPTION and use IMPLICT NONE in all routines ;
2560      declare all the variables _RL ; use _d 0 for all numerical constants.
2561      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2562    
2563    checkpoint46h_post
2564    o cleaned up the use of rhoNil and rhoConst.
2565      - rhoNil should only appear in the LINEAR equation of state, everywhere
2566        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2567        and the dynamical equations are all divided by rhoConst
2568    o introduced new parameter rhoConstFresh, a reference density of fresh
2569      water, to remove the fresh water flux's dependence on rhoNil. The default
2570      value is 999.8 kg/m^3
2571    o cleanup up external_forcing.F and external_forcing_surf.F
2572      - can now be used by both OCEANIC and OCEANICP
2573    checkpoint46h_pre
2574    
2575     Added code to convert surface volume flux (fresh water) into
2576     a mass flux when using P coordinates in the ocean (OCEANICP).
2577     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2578    
2579    checkpoint46g_post
2580    o Include a new diagnostic variable phiHydLow for the ocean model
2581      - in z-coordinates, it is the bottom pressure anomaly
2582      - in p-coordinates, it is the sea surface elevation
2583      - in both cases, these variable have global drift, reflecting the mass
2584        drift in z-coordinates and the volume drift in p-coordinates
2585      - included time averaging for phiHydLow, be aware of the drift!
2586    o depth-dependent computation of Bo_surf for pressure coordinates
2587      in the ocean (buoyancyRelation='OCEANICP')
2588      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2589        Theta, Salinity, and Pressure in the parameter list. This routine is
2590        presently contained in find_rho.F. This routine does not give the
2591        correct density for 'POLY3', which would be a z-dependent reference
2592        density.
2593    o cleaned up find_rho
2594      - removed obsolete 'eqn' from the parameter list.
2595    o added two new verification experiments: gop and goz
2596      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2597    checkpoint46g_pre
2598    
2599    checkpoint46f_post
2600    o Enable tangent linear (forward mode) gradient checks:
2601      - extended active file handling to g_... files
2602      - added TANGENT_SIMULATION to theSimulationMode
2603      - extended grdchk package accordingly
2604    o added tangent linear setup in verification/carbon/code_ftl
2605    o added adjoint setup in verification/front_relax/code_ad
2606    
2607    checkpoint46e_post
2608    o Added new equation of state -> MDJWF
2609      - EOS of McDougall et al., 2002, JAOT, submitted
2610      - caveat: the equation of state is only valid for a smaller (more
2611        realistic?) range of values than JMD95P/Z and UNESCO
2612      - added masks to the calculation of pressure in store_pressure
2613      - added more check values for density in check_eos (ini_eos.F), some of
2614        the old check values are out of the range of the MDJWF-eos, so don't
2615        expect perfect matches for those
2616    checkpoint46e_pre
2617    
2618    checkpoint46d_post
2619    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2620      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2621      case of pressure coordinates. eosType='JMD95Z' in
2622      combination with buoyancyRelation='OCEANICP' now causes an error.
2623    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2624      in find_alpha/beta.
2625    checkpoint46d_pre
2626    
2627    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2628      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2629    
2630    checkpoint46c_post
2631    o Changes necessary for ocean in p-coordinates
2632     -  Added new buoyancy relation = 'OCEANICP'
2633     -  Added new parameters = gravitySign (this used to be contained inside
2634        the factor dRdZ which I added when we first switched to R coordinates).
2635     X GM/Redi is not compatible (yet)
2636     X bottom drag and no-slip need to be debugged.
2637    checkpoint46c_pre
2638    
2639    checkpoint46b_post
2640    o Added new equation of state -> JMD95Z and JMD95P
2641      - EOS of Jackett and McDougall, 1995, JAOT
2642      - moved all EOS parameters into EOS.h
2643      - new routines ini_eos.F, store_pressure.F
2644    o Added UNESCO EOS, but not recommended because it requires
2645      in-situ temperature (see JMD95)
2646    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2647      unesco.f to be used with POLY3
2648    checkpoint46b_pre
2649    
2650    checkpoint46a_post
2651    o Added (atmospheric) pressure loading
2652      - new field in FFIELDS.h, etc...
2653      - new cpp flag ATMOSPHERIC_LOADING
2654    o Changed hFacC to _hFacC in calc_phi_hyd.F
2655    o Added SHORTWAVE_HEATING to some files for consistency
2656    checkpoint46a_pre
2657    
2658    checkpoint46
2659    further merges from release1_p5
2660    o new ctrl package
2661      - adopted from ECCO environment to enable optimization
2662      - added Eliassen Palm fluxes to controls
2663    o added Eliassen Palm flux controls to gradient check package
2664    o cost package
2665      - Compatible with new ctrl package
2666      - added Eliassen Palm cost hooks
2667      - modif's of existing cost functions
2668    o Adjoint-related bug fixes in kpp:
2669      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2670      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2671    o autodiff package
2672      - flow directives:
2673        + new for S/R do_the_model_io
2674        + enhanced for S/R checkpoint
2675        + new gmredi.flow
2676      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2677        disable adcommon.h/g_common.h by default.
2678      - fixed problem for adjoint of global_max
2679    o modified verification/carbon/
2680    o New setup for adjoint of global_ocean
2681    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2682    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2683    o incorporated hooks for sponge layer code (external_forcing.F)
2684    
2685    checkpoint45d_post
2686    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2687    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2688      (affects plume_on_slope "cg2d" output)
2689    o add new parameter deltaTfreesurf for free-surface time stepping
2690    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2691    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2692    o change phiMin in exp1 (to agree with documentation)
2693    o add new flags:
2694     - T,S forcing inside/outside Adams-Bashforth
2695     - turn off temp,salt advection and/or forcing
2696     - for each tracer, define internal flag for multiDimAdvection & A-B
2697    o monitor: change definition of KE to check conservation of Energy
2698    
2699    checkpoint45c_post
2700    o Removed f90 comments ("!")
2701    o Modified initialisations to enable exf package for MITgcm
2702      (without invoking ECCO_PACKAGE).
2703    o modifications to gradient check package (Martin Losch)
2704      - enable centered differences
2705      - modified format of standard output
2706    
2707    checkpoint45b_post
2708    o cleaned exchange calls in cg2d
2709    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2710    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2711      to configure barotropic setup (Martin Losch)
2712    o moved some initialisations within bi,bj loop in dynamics
2713      (TAF flow dependency)
2714    o in initialise_varia, moved call packages_init_variables
2715      before convective_adjustment_init
2716      (corresponding adjustment of TAF tape initialisation).
2717    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2718    
2719    checkpoint45a_post
2720    o compute Rho over the whole domain (extend iMin,jMin indices)
2721    o specific exchange for X-slice domain (case Ny=1)
2722    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2723    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2724    
2725    checkpoint44h_post = checkpoint45
2726    o Fix to restore differentiability:
2727      place at which packages_init_variables is called in
2728      initialise_varia is crucial for reverse control flow.
2729    o modifications in GMRedi to enable stable adjoint
2730      (corresponding modif's in thermodynamics, dynamics)
2731    o added missing hook for sponge layer code in external_forcing
2732    o modified test cost functions
2733    o storing in gad_advection (plus removal of write(0,*)!
2734    o missing headers TR1.h added in convective_adjustment routines
2735    o errorMessageUnit set non-equal zero in eeboot
2736      (conflict on some platforms, e.g. IBM SP3)
2737    o modified carbon verif.
2738    
2739    checkpoint44h_pre
2740    o vertical grid option: allow to put the Interface at the middle between
2741      2 cell-centers ; replace delZ in pkg/kpp by drF.
2742    o GM Advective form: Tracers are advected using the residual transport (=
2743      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2744    
2745    checkpoint44g_post
2746    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2747      results) ; ifdef missing in thermodynamics.F
2748    
2749    checkpoint44f_pre,checkpoint44f_post
2750    o added PTRACERS package
2751      This allows an arbitrary number of passive tracers to be integrated
2752      forward simultaneously with the dynamicaly model.
2753      + Implemented so far:
2754        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2755        - I/O and checkpointing
2756        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2757      + Not implemented so far:
2758        - KPP
2759        - OBCS
2760      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2761        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2762        line in data.pkg.
2763      + This package is disabled by default since it increases storage.
2764    
2765    
2766    o testscript: added -cleanup option
2767    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2768                 b) enable to filter 2D fields.
2769    
2770    checkpoint44e_pre,post
2771    o re-wrote convective adjustment to use pre-calculated weights
2772      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2773      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2774      Original calls to convect() still in place.
2775    
2776    chkpt44d_pre,post
2777    o added missing EXCLUDE_MONITOR flags
2778    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2779      (incompatible typ in MIN/MAX expressions caused problems
2780      on IBM SP3)
2781    o in genmake added variable MAKEDEPEND
2782      plus resetting for case SunOS
2783    o added timer_stats.c routine for IBM SP3
2784    o removed variables in dynamics
2785    !!! I forgot to create tag chkpt44d_pre !!!
2786    !!! But chkpt44d_pre = chkpt44c_post    !!!
2787    
2788    o real fresh water flux implemented with non-linear free-surface.
2789    
2790    chkpt44c_pre,post
2791    o few fix (mask in shap_s2, EmPmR in external_field_load,
2792      USE_NATURAL_BCS in solve_for_P);
2793    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2794    
2795    checkpoint44b_pre/_post
2796    o merge of relevant stuff from the ecco-branch:
2797      - genmake: removed $S64 overwrite for case SunOS
2798      - pkg/exf: update and corrections for field swapping and obcs
2799      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2800                  harmonized between ECCO and MITgcm
2801      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2802                      updated checkpointing_lev... lists for obcs
2803      - model/src: minor changes in forward_step, plot_field
2804                   added directive for divided adjoint in the_main_loop
2805      - pkg/mdsio: added mdsio_gl_slice
2806    
2807    o check parameters & config (chkpt44a_pre,post)
2808    o OBC and NonLin_FrSurf.
2809    
2810    checkpoint44
2811    o fix bug in mom_vi_del2uv
2812    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2813    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2814    o update AIM experiments (NCEP input files)
2815    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2816    o added some stuff for AD
2817    
2818    checkpoint43
2819    o added two new advection tests
2820    o added global 4x4 degree ocean test
2821    o added test of H&S94 with free surface on cube
2822    o some final mods for gradient check, adjoint,...
2823    
2824    checkpoint42
2825      Fixed AD-related problems:
2826    o Store directives up-to-date with re-arranged Adams-Bashforth
2827      (mainly thermodynamics.F)
2828    o New store directives for multi-dim. advection schemes
2829      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2830      * new common block and key passkey
2831      (mainly gad_advection.F)
2832    o Modified store directives for split of dynamics/thermodynamics
2833      for the case ALLOW_KPP
2834    o Cleaned argument list for timestep_tracer.F
2835    
2836    checkpoint41
2837    o re-formatted/added comments in prologues of key subroutines
2838      to work with protex
2839    
2840    checkpoint40
2841    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2842    o added FLT (floats) package from Arne along with demo. experiment
2843    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2844      implementation of forward-in-time forcing terms
2845    o more mods for non-linear free-surface including new variable
2846    o modified multi-dim method to work on cube
2847    o bug fix in KPP (from DM)
2848    
2849    checkpoint40pre9
2850    o added DST advection schemes
2851    o fix MPI bug on SGI's
2852    o modifications for non-linear free-surface
2853    o fixed conditionals for fixed flow/passive tracer only mode
2854    o added tension/strain form of stress tensor
2855    o changes to commenting of arguments for TAF/TAMC
2856    o added/updated many matlab scripts
2857    o added multi-dimensional advection method for tracers
2858      
2859    checkpoint40pre8
2860    o new package rw/
2861      Added method for dumping intermediate local arrays:
2862      mdsio_writetile - same as mdsio_writefield except works from inside
2863                        bi,bj loop
2864      mdsio_writelocal - same as mdsio_writetile except works for local
2865                         arrays
2866      write_local_r? - higher-level wrapper for mdsio_writelocal
2867      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2868      Example given at end of mom_vecinv.F that dumps some local arrays.
2869    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2870      control flux-form versus vector invariant code.
2871      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2872      or genmake -DISABLE ...
2873    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2874      (additional storing is now needed for case vecinv;
2875      currently nothing implemented to switch this storing off
2876      in case fluxform is used since no CPP flag available).
2877    
2878    checkpoint40pre7
2879    o bug fix in dynamics.F
2880      calc_viscosity called before k=1,Nr loop.
2881    o added some #ifdef's ALLOW_PASSIVE_TRACER
2882    o cleaned initialisations in ctrl_map_ini
2883      related to TAF
2884    
2885    checkpoint40pre6
2886    o split dynamics into thermodynamics & dynamics
2887    o corresponding split of calc_diffusivity into
2888      calc_diffusivity, calc_viscosity
2889      (kpp_calc_diff, kpp_calc_visc).
2890    o Added diffkr, kapgm to control variables
2891    o bug fix in gmredi_slope_limit for ldd97
2892    
2893    checkpoint40pre5
2894    o proper initialization of Adams-Bashforth time stepping
2895      + uses forward step for very first step of model (iter=0)
2896    o re-generated *all* output since almost all output is modified by this
2897      change (sorry but we've been putting this one off for about 2 years)
2898      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2899        *not* regenerated since they are already out of date and I don't
2900        want to create the impression that they are suddenly working.
2901    o removed KAP stuff for DEC's
2902    o modified/added many .cvsignore files in */code and */input
2903    o added new expt "solid-body.cs-32x32x1"
2904      + this uses an alternative form of ini_curvilinear_grid.F which
2905        is not necessarily any better than the current one...
2906    
2907    checkpoint40pre4
2908    o added re-initialisations of utrans,vtrans,rtrans in
2909      calc_common_factors which are crucial for TAF.
2910    o extended iMin,jMin range for calc_common_factors,
2911      calc_diffusivity
2912    o added option ALLOW_PASSIVE_TRACER
2913    o a few minor updates and fixes
2914    
2915    checkpoint40pre3
2916    o created calc_gtr1.F for gad package
2917    o split the_main_loop and re-introduced forward_step
2918    o some recomputations of nIter0 for TAMC
2919    
2920    checkpoint40pre2
2921    o Updated to latest branch of AJA, JMC
2922    o Added gradient check package
2923    o Added routines for passive tracer handling
2924    o Added carbon sequestration sensitivity experiment
2925    
2926    checkpoint39
2927     o Modifications and fixes to support TAMC
2928       (mainly missing or wrong directives)
2929     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2930       in addummy_in_stepping
2931     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2932     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2933     o Included following packages:
2934       cal: calendar
2935       exf: external forcing
2936       ecco: essential routines to control use of cal, exf
2937             (NB: this is not the full ECCO environment)
2938     o disabled some packages by default in genmake
2939    
2940    checkpoint38
2941     o see notes_c37_adj.txt
2942     o corrected wrong layer index in external_forcing_t
2943     o replaced the_main_loop/forward_step by the_main_loop
2944     o removed forceoutput from write_state
2945       (replaced criteria for initial/final state)
2946     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2947    
2948    checkpoint37
2949     o mdsio.F routine split and packaged in pkg/mdsio
2950       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2951        used unless genmake -disable=mdsio)
2952     o allow a more precise surface-geopotential gradient for the atmosphere
2953       taking into account the change in space of Alpha (=1/rho) at the surface.
2954     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2955       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2956     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2957       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2958       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2959     o Time-Average diagnostics defined as a pseudo package "timeave".
2960     o pickup files : old pickup (before c35) did not work with new code (c35
2961       and after) unless activating 2 commented lines in initialise-varia.
2962     o Non-Hydrostatic pickup file Pb fixed.
2963     o bug with Rigid-lid version (since c35) fixed.  
2964    
2965    checkpoint36
2966     o implement Crank-Nickelson barotropic time-stepping
2967     o recover Time-Average diagnostics
2968     o fix Pb in checkpoint (PR#19)
2969     o AIM become a standard package ; clean unused CPP_kees
2970    
2971    checkpoint35
2972     o subtantial rewrite of dynamics.f
2973     o allows staggered time-stepping
2974     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2975     o added bottom drag (linear + quadratic)
2976    
2977    checkpoint34
2978     o Modified exchange routines for correct reverse simulation.
2979     o Added verification output to comply with bug fix in impldiff.F
2980       as of c33 (exp2, natl_box).
2981     o Corrected store directives in dynamics.F
2982     o Corrected array boundaries in impldiff.F
2983     o Corrected array dimensions in gmredi.
2984       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2985     o Added routine GLOBAL_SUM_INT to global_sum.F
2986     o Added mdsio_gl.F for ECCO purposes.
2987    
2988    checkpoint33
2989     o Fixed bug in lower BC in impldiff.F
2990     o Fixed confusion about units of forcing arrays in FFIELDS.h
2991       namely Fu,Fv,Qnet,Qsw,EmPmR:
2992       - Removed verification/natl_box/code/external_fields_scale.F
2993         (did not differ from that in model/src)
2994       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2995         (see FFIELDS.h for description)
2996       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2997         kpp_calc.F and kpp_transport_t.F
2998       - Removed model/src/external_fields_scale.F and calls to it
2999       - verification/natl_box uses flux data with "atmospheric" sign so
3000         a special version of external_fields_load.F is used to
3001         change the data as it's read in. This way, the arrays
3002         have the right units and signs at all times tha a user could
3003         possibly use them.
3004     o Corrected genmake to delete a temporary file during configuration
3005    
3006    checkpoint32
3007     o Scaling of forcing fields moved from external_forcing.F to
3008       external_fields_scale.F, called directly after loading fields.
3009     o Surface relaxation terms added to surface tendency fields in
3010       extra subroutine.
3011     o impldiff.F changed to avoid storing by TAMC of huge intermediate
3012       fields.
3013     o Changes in GMRedi to comply with packaging structure.
3014     o Modifications and bug fixes in KPP package.
3015     o Verification experiment for KPP added (verification/nat_box/)
3016    
3017    checkpoint31
3018     o Packages interface brought in line with defined standard
3019       -> new routines packages_...F
3020       -> changes in initialise_fixed.F, initialise_varia.F
3021       -> enables initialisation interface for ECCO package
3022     o Rescaling of external forcing fields immediately after read
3023       (removed from external_forcing.F)
3024       -> new: surface_fields_scale.F
3025       -> affects ini_foorcing.F, external_fields_load.F
3026     o Computation of surface tendencies before tendency updates.
3027       -> new: external_forcing_surf.F
3028     o Change of variable names useGMRedi, useKPP, useECCO
3029     o Further changes in dynamics.F, impldiff.F for TAMC
3030     o Tested for experiments 0, 2, 4.
3031       - not yet tested for GMRedi.
3032       - not yet tested for KPP.
3033    
3034    checkpoint30
3035     o Updates for OBCs
3036     o New experiment for test OBCs (internal_wave)
3037     o New output.txt in verification/exp4/results/
3038     o Updates for KPP: calculation of viscosity corrected, new variables
3039       kpp_dumpFreq and kpp_taveFreq
3040     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
3041       and entry for T90 in genmake
3042    
3043    checkpoint29
3044     o packaged KPP and GM/Redi
3045    
3046    checkpoint28
3047     o Corrected initialization of hFacMin for difference vertical coordinates
3048     o Modified calculation of partial cell thickness to more robust algorithm
3049     o config_summary.F: replaced write_1D_... by write_0D_...
3050       read_write.F: added subroutines write_0D_...
3051     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
3052       included some initialisations required for TAMC.
3053     o routine calc_isoslopes: modified sqrt computation to make it
3054       differentiable for zero argument.
3055     o routines dynamics, impldiff:
3056       included store directives and tape key computations required for TAMC.
3057     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
3058    
3059    checkpoint27
3060     o fixed calc_isoslopes() to so that cancellation of terms in tensor
3061       formulation works properly with variable resolution.
3062     o restructured the calling tree between the_model_main() and dynamics()
3063     o split initialise() into initialise_fixed() and initialise_varia()
3064     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
3065       in new routine ini_psurf()
3066    
3067    checkpoint26
3068     o moved some #ifdef in optional routines to encompass everything
3069       except the argument declarations. This was using up some memory.
3070     o fixed macros like _ADT to work with both versions of Linux cpp
3071     o cleaned up some unused and uninitialized variables
3072       (helps when debugging with strict compile options)
3073     o split up CPP_EEOPTIONS.h into options and macros
3074       (macros are now in eesupp/inc/CPP_EEMACROS.h)
3075     o patch for 2 processor JAM mode
3076    
3077    checkpoint25
3078     o updates for OBCs and NH
3079     o dramatically reduced memory usage
3080     o added "JAM" routines for use on Artic network
3081     o parameterization of convection by implicit vertical diffusion
3082     o added a diagnostic of convective index
3083     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
3084       (this is was partly for OBCs and NH but also in anticipation of
3085        an explicit free-surface option)
3086     o initial state input files for U and V
3087    
3088    checkpoint24
3089     o Removed some spurious "REAL"s
3090     o Updated KPP to latest version from JPL
3091     o Added a COS(latitude) in horizontal viscosity
3092    
3093    checkpoint23
3094     o Added del^4 diffusion for salt and temperature
3095     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
3096    
3097    checkpoint22
3098     o Made many small changes: implicit none, format(i5), etc...
3099     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
3100    
3101    checkpoint21
3102     o Introduced new I/O package that supports direct-access records (mdsio.F)
3103     o Split-up mid-level I/O routines
3104     o Updated input data for experiments 0,1,2,4 and 5
3105     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
3106    
3107    checkpoint20
3108     o Tidied up open-boundaries some more
3109     o Added non-hydrostatic code
3110     o Fixed some input data
3111     o Modified MPI start-up to work in "coupled" context.
3112    
3113    checkpoint19
3114     o Tidied up directory structure for verification experiments.
3115     o Added new code for open boundaries.
3116     o Corrected advective terms near boundaries.
3117     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
3118     o Implemented free-slip/no-slip BCs and del^4 dissipation.
3119     o Split default parameters out of ini_parms.F into set_defaults.F.
3120    
3121    checkpoint18
3122     o Further changes for optional code generation with
3123       CPP - ugh!
3124    
3125  checkpoint17  checkpoint17
3126   o Beginning to incorporating modularity   o Beginning to incorporating modularity
3127     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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