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

Diff of /MITgcm/doc/tag-index

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

revision 1.31 by heimbach, Mon Nov 13 16:49:41 2000 UTC revision 1.807 by mlosch, Thu May 3 14:51:33 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/kpp
8     - move computation of surface related input fields to KPP into a new
9       subroutine kpp_forcing_surf.F
10    o pkg/seaice
11     - check for inconsistent evp parameter/cpp-flag combination
12     - remove leftover errIO flat for obsolete name list error handling
13    
14    checkpoint59a
15    o pkg/seaice: some parameter clarifications and a little bit of clean up
16    o pkg/thsice: rename run-time parameters:
17       himin       -> hIceMin
18       himin0      -> hThinIce
19       hihig       -> hThickIce
20       i0          -> i0swFrac
21       transCoef   -> bMeltCoef
22       frac_energy -> fracMelting
23      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
24       with default values (for now) that do not change the results.
25      remove old version of thsice vars advection in pkg/seaice.
26    o in FFIELDS.h:
27      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
28      - make pLoad & sIceLoad always available (but still only used if
29         ATMOSPHERIC_LOADING is #define).
30    o pkg/kpp: replaced _KPP_RL with _RL
31    o bug fixes for vertical diffusivity computations when both KPP and
32        3D diffusivity arrays are used.
33    o pkg/seaice: fix bug in evp solver, while doing that
34      - change (improve?) discretization of stress computations for both
35        cgrid-lsr and evp solver
36      - add a new routine to compute strain rates
37      - the above changes lab_sea results
38      - add no slip conditions for evp solver (off by default), lsr-version
39        may follow
40      - fix exchange for shear at Z-points (does not change lab_sea)
41      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
42        (to force the user to pick a time step since there is not "safe" way
43        of choosing it)
44      - add principal stress diagnostics
45      - rearrange fields for evp a little to avoid having to call a: too many
46        exchanges and b: exchanges for stress trensor components which we do
47        not have.
48      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
49        of evp, complete rewrite for lsr case (latter is does not yet work
50        in all cases)
51    o pkg/kpp: add code to have mixing in shelf ice caverns
52      - add myThid to all kpp routines (long overdue)
53    
54    checkpoint59
55    o pkg/exf:
56      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
57        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
58      - move exf header files from lower_case.h to UPPER_CASE.h ;
59        add missing cvs Header & Name
60      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
61      - add namelist param. selectStressGridPosition, exf_monFreq
62      - retire many _CLIM routines, and remove data.exf_clim
63        + params moved to data.exf
64        + climsst, climsss now handled by exf_set_gen, i.e.
65          climss?period=0 refers to constant field,
66          climss?period=-12 to monthly forcing
67      - split up namelists in data.exf
68    o pkg/seaice:
69      - remove seaice_exch and seaice_exch_uv
70      - remove superfluous exchange of theta
71      - add myThid to seaice_budget_ocean/ice
72      - add new interface for atmospheric wind forcing (C-grid only)
73        + new routine
74        + two new field (taux, tauy for stress over ice)
75        + removed one global field (DAIRN) for C-grid case only
76    o pkg/thsise
77      - 2nd set of modifs for thsice adjoint in conjunction with exf
78    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
79    
80    checkpoint58y_post
81    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
82      vertical diffusivity, similar to that in MOM4; turned on using
83      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
84      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
85    o Added capability for 3D specification of background vertical diffusion
86      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
87      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
88      "data" file that contains the 3D vertical diffusivity coefficients.
89    o ice dynamics (pkg/seaice) with thsice thermodynamics:
90      - add code within pkg thsice to advect & diffuse sea-ice fields
91      similar to (and will replace) what has been added in  seaice_advdiff.F,
92      but: - conserving Mass, Heat & Salt.
93           - better when using non-linear advection scheme (not yet fully tested)
94           - can also be used in atmospheric set-up (for now, only the diffusion).
95    
96    checkpoint58x_post
97    o IO option for global-file compact format:
98      - add options when generating topology (utils/exch2/matlab-topology-generator)
99      - add I/O capability (pkg/mdsio).
100      - adapt utils/matlab/rdmds.m to read this format.
101      for now long-line format not yet supported by pkg/mdsio (& exch2).
102    o shelfice: add a few diagnostics
103    
104    checkpoint58w_post
105    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
106      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
107      (and replace horiVertRatio in NH code).
108      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
109                         and tutorial_plume_on_slope (sensitive to truncation)
110    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
111      directly to drive seaice model (C-grid only)
112    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
113     - reintroduce computation of wind from stress,
114     - compute tau (in exf_bulkformulae.F) from windstress averaged to
115       mass points to avoid tau = 0
116     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
117    o rdmnc.m: make it work with "global" files created with gluemnc
118    o rdmnc.m : some improvements in dealing with singleton dimension
119      (tested on all testreport mnc output files).
120    o genmake2: disable pkg/profiles if netcdf test fails.
121    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
122    o move call to cal_readparms up to make calendar parameters/variable available
123      to all packages
124    
125    checkpoint58v_post
126    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
127      useDynP_inEos_Zc tested.
128    o pkg/exf: changes to properly interpolate/mask/scale initial fields
129    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
130      and portions thereof.  See read_cs.txt for description and examples.
131    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
132      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
133      following the great-circle arc between those 2 points.
134    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
135      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
136    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
137     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
138     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
139     - still needs work (not working with some options ; efficiency to improve)
140       and serious testing.
141     - use this scheme for temperature & salinity in 2 advection test exp.:
142       advect_xy & advect_xz, respectively.
143    
144    checkpoint58u_post
145    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
146    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
147    o testreport: add option "-skipdir" to skip some test.
148    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
149      momentum calculation.
150    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
151    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
152      remove checkpoint.F and the_correction_step.F (no longer used);
153      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
154    o add option (linFSConserveTr) to correct for tracer source/sink due to
155      Linear Free surface
156    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
157    o pkg/thsice: fix reading mnc-pickups
158    
159    checkpoint58t_post
160    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
161    o pkg/mdsio:
162     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
163       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
164       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
165     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
166     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
167       either MDS_READ_FIELD or MDS_WRITE_FIELD )
168     - new S/R (to replace MDSWRITEMETA), which allows to write more
169       informations (variable names, time ...) to meta files.
170     - modify rdmds.m to give back the meta file content.
171    o pkg/diagnostics: change vertical interpolation to be safer, and more
172       flexible (define p-levels to interpolate to in data.diagnostics);
173      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
174       diagnostic pointer.
175    o pkg/seaice: more cleaning up of seaice_growth, added many comments
176    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
177    o fix multi-category seaice:
178     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
179       SEAICE_MULTICATEGORY
180     - fix short wave heat flux
181    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
182       and allow to use EVP solver. Change forward lab_sea: test both EVP
183       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
184    o Initial check-in of lab_sea adjoint
185      (very similar to natl_box_adjoint/code_seaice)
186      * used C-grid and EVP solver
187      * used KPP, GM/Redi
188      * uses inAdExact=.TRUE.
189      * gradient checks fail for both ADM and TLM
190        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
191        f.d. gradients actually seem more problematic than ADM, TLM gradients;
192        issue is related to forward mismatch between g77 an ifort
193    o pkg/seaice: overhaul of thermodynamics
194     - growth.F and groatb.F are replaced by new routine seaice_growth.F
195     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
196     - move a few global fields out of SEAICE.h into seaice_growth.F and
197       make them 2D (FICE/QNETO/ ...)
198     - remove FO (it is the same as QNETO)
199     - introduce a few local fields to avoid modifying external fields such
200       as atemp, etc.
201    
202    checkpoint58s_post
203    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
204      changed exf_set_gen.F so that
205        genperiod=0 means input file is one time-constant field and
206        genperiod=-12 means input file contains 12 monthly means
207    o CG2D: use pre-computed solver main-diagonal (stored in common block);
208      this affects truncation error ; generate new output file for exp. which
209      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
210        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
211        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
212        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
213        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
214        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
215    o start implementation of deep-atmosphere and anelastic formulation
216    o verification: remove 2nd copy of input files and use script "prepare_run"
217      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
218    o mom_common/vecinv/fluxform: fix a few initialisation isssues
219    o profiles: fix for multithreaded case
220    
221    o diagnostics: rename few diags:
222      s/'PRESSURE'/'RCENTER '/g
223      s/'TICE    '/'oceFreez'/g
224      s/'TAUX    '/'oceTAUX '/g
225      s/'TAUY    '/'oceTAUY '/g
226      s/'SWFLUX  '/'oceQsw  '/g
227      s/DIFx/DFxE/g
228      s/DIFy/DFyE/g
229      and add few ocean-forcing diagnostics:
230      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
231    o modifications to pkg/seaice/growth.F and budget.F, which change results of
232      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
233      as actual snow thickness.  It now refers everywhere to effective snow
234      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
235    
236    checkpoint58r_post
237    o modifications to pkg/seaice/growth.F, which change results of
238      lab_sea experiment: fixes pertain to melting snow over open water, to
239      masking EVAP under sea ice, and to using the correct AREA variable for
240      computations of EVAP, PRECIP, HSNOW, and GHEFF
241    o add ability to read bathy, salt, and theta using MNC (off by def)
242    o add flooding algorithm and advection of HSNOW for pkg/seaice;
243      both are turned off by default and do no change any results
244    o seaice advection with pkg/thsice: a step toward the use of non-linear
245      advection scheme, but #ifdef or commented out for now (requires more EXCH).
246    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
247      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
248      in natl_box (affects results @ truncation level: update output.txt)
249    o multi-threading and IO:
250      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
251      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
252        (needed to work with SingleCpuIO): tested in all verif. exp.
253    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
254      affects the results (but none of the verification test uses this scheme).
255    o Adding some pkg/diagnostics capability to pkg/seaice
256      (will certainly be subject to changes)
257    o ctrl: adding new control variables:
258      lwflux, lwdown, evap, snowprecip, apressure, runoff
259    
260    checkpoint58q_post
261    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
262      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
263      high_res_cube configuration by 4% on Columbia.
264    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
265      add (in global_with_exf/code) a version of EXF_INTERP_READ without
266      dynamical allocation (seems to work in multi-threaded).
267    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
268      single CPU io) so that TAF does not have to see EESUPPORT.h
269    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
270    
271    checkpoint58p_post
272    o obcs: stop if obcs is used with useCDscheme = .true.
273    o shelfice:
274     - fix a sign error so that no slip at shelfice interface works
275     - remove stop for combination non-hydrostatic code and shelfice. That does
276       not mean, that the results are correct, but at least they are numerically
277       stable
278    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
279    o added adjoint exch routined for all exch*3d* routines
280      and updated flow directives
281    
282    checkpoint58o_post
283    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
284      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
285    o change controling S/R for writing pickup file (new S/R do_write_pickup)
286      and clean-up reading/writing of pickup files.
287    o fix local version of read/write pickup (NH part) in rotating_tank/code
288    o simplify EXCH interface:
289     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
290     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
291    o added the regrid package
292    o shelfice:
293     - add a simple boundary layer scheme to reduce noise
294     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
295    
296    checkpoint58n_post
297    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
298       local variable (not in common block).
299    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
300      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
301      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
302        to work with SingleCpuIO.
303    o add "_d 0" to real constant of pkg/cfc subroutines ;
304       update exp. cfc_exemple & tutorial_cfc_offline output files.
305    o multi-threading and IO:
306      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
307        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
308      - barrier before and after reading.
309      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
310      - avoid using MDS_WRITELOCAL for LAND pkg output.
311      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
312        common-block variables ; Allows multi-threading with master-thread IO.
313    o change default MAX_NO_THREADS from 32 to 4 ;
314      and stop cleanly when MAX_NO_THREADS is too small.
315    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
316    
317    checkpoint58m_post
318    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
319       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
320    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
321       keep global_ocean.90x40x15 (for AD testing) with former secondary test
322       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
323    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
324        add MITgcm_tutorials (= code + all the tutorials)
325    o ecco, option to compute cost for total ssh (mean+anom)
326    o consistent with addition of ptracer and ssh in pkg/profiles
327    o profiles: adding ptracer and ssh
328    o testreport: change multi-test output-file name
329      (from output.txt.{name} to output.{name}.txt)
330    o profiles: now ok for mutli-tiles case
331    o seaice: add 4 parameters for different advection schemes for area,
332      (effective) seaice thickness, enthalphy, and snow height. Their default
333      is the standard parameter SEAICEadvScheme
334    o calc_gw:
335     - add cosFacU in zonal viscous flux (harmonic.visc.).
336     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
337       of tutorial_plume_on_slope.
338    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
339    o calc_gw: true flux-form, account for horizontal grid spacing.
340      update rotating_tank results, but not plume_on_slope (affected at
341      truncation level, 11 digits).
342    
343    checkpoint58l_post
344    o calc_gw:
345     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
346     - remove side-drag for now (need to fix it); update plume_on_slope results.
347     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
348    o commit code to make SST/SSS weights spatially variable
349      (based on either variable in-situ or variable initial T/S weights)
350    o pkg/ecco:
351      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
352        now based on horizontally varying weights wthetaLev, wsaltLev
353      * cost_averagesflags now returns year indices in addition to day, month
354      * sflux balance is performed on annual basis
355        (sflxumm, sfluxmm2, bal_sfluxmm)
356      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
357        including separate counting and multipliers
358    o pkg/rbcs
359      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
360    
361    checkpoint58k_post
362    o testreport:
363     - always build in dir. "build" (if not there, mkdir build instead of building
364       & running in input)
365     - run in dir run (if it exists), in build otherwise.
366     - call prepare_run (if input/prepare_run exists)
367     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
368    o pkg/exf modifications to interpolation and rotation routines for more
369       reasonable treatment of North Pole singularity: for tracers North Pole
370       value is set to northernmost zonal-mean value, for zonal velocity it is
371       set to zero, and for meridional velocity it is set to northernmost value.
372    o pkg/exf/exf_check_range.F
373     - add tile index to diagnostics and move stop statement to the very
374       end of the routine.
375    o pkg/diagnostics: (diagnostics_main_init.F)
376      define title of isomorphic variables according to the current config.
377    o pkg/thsice with pkg/seaice dynamics:
378    - fix domain of computation (interior only, required for exf) and do exchanges
379    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
380    o towards a standard way of dealing with multi-threading in MONITOR
381      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
382    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
383       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
384    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
385    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
386    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
387       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
388    o tracer advection:
389     - clean-up and simplify calc_common_factors.F
390     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
391       advection subroutine (but still not used within DST advection S/R)
392    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
393    
394    checkpoint58j_post
395    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
396      from file (collects calls previously in FORWARD_STEP)
397    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
398    o adjoint store dir. adjusted accordingly
399    o genmake2
400      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
401    
402    checkpoint58i_post
403    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
404      on wind stress (SEAICEstressFactor defaults to 1.)
405    o Total number of Timers is finite (<=40): comment out 2 non-essential one
406      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
407    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
408      on CS-grid: no longer loosing mass.
409    o exf & curvilinear-grid: no longer modify longitude xC & xG.
410    o pkg/ggl90: fix sloppy output and fix a bug
411    o pkg/seaice: added SEAICEuseEVPpickup parameter
412      - Set to false in order to start EVP solver with
413        non-EVP pickup files when using SEAICEuseEVP
414      - fix sign error in diffusion in seaice_calc_rhs
415    
416    checkpoint58h_post
417    * Modifications for bottom topography control
418      o replace hFacC by _hFacC at various places
419      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
420      o add non-self-adjoint cg2d_nsa
421      o update autodiff support routines
422      o re-initialise hfac after ctrl_depth_ini
423      o works for 5x5 box, doesnt work for global_ocean.90x40x15
424    * Adding verification for 5x5 box (4-layer) bottom topography control
425    
426    checkpoint58g_post
427    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
428       used for mean seasonal cycle, mean diurnal cycle); add an example
429       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
430    o pkg/ggl90:
431      - add parameter (minimum surface kinetic energy)
432      - fix bug (avoiding division by zero)
433    o couple pkg/thsice to pkg/seaice:
434      - modify advection in seaice to accomodate new scalar fields to be advected
435      - only muliDimAdection scheme work with seaice/thsice
436      - mapping of thsice-variables to seaice-variables, back and forth
437      - does not break the verification experiments, but does not give the
438        desired results either
439    o pkg/seaice
440      - make (default) second order advection a bit less confusing?
441    
442    checkpoint58f_post
443    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
444      to pkg/seaice):
445      - new routines thsice_map_exf and thsice_get_exf provide the interface
446      - add an additional formal parameter to thsice_solve4temp
447    o pkg/exf:
448      - add new fields wspeed, snowprecip (to be able to couple to thsice)
449      - correct Stefan-Boltzmann constant
450      - new parameter for longwave surface emittance
451      - separate some stuff from exf_bulkformulae into new routines  
452        exf_radiation, exf_wind
453      - add new parameters and constants: longwave emissivity for ocean, ice
454        and snow, evaporation parameters over ice
455      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
456        either wind from stress or stress from wind
457    o pkg/thSIce:
458    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
459    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
460       and THSICE_CALC_THICKN
461    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
462    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
463      to make debugging easier.
464    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
465    o pkg/bulk_force:
466      - clean-up comments and parameters ;
467      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
468    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
469      generate new output for test-experiment: aim.5l_cs.thSI
470    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
471      testreport accordingly
472    
473    checkpoint58e_post
474    o SEAICE_CGRID adjoint done
475    o R_STAR adjoint implemented.
476      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
477      * need to sort out init. of h0facc, etc.
478    o Make pkg/profile fully independent of ecco,cost, etc. stuff
479      to be able to use it in pure forward.
480    
481    checkpoint58d_post
482    o upgrade simple test-experiment to tutorial example:
483     step.1: duplicate the experiment and (step.2) will remove the old copy.
484      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
485      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
486      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
487      tutorial_global_oce_biogeo    <- copy of dic_example
488      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
489      tutorial_plume_on_slope       <- copy of plume_on_slope
490      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
491      tutorial_global_oce_optim     <- empty for now (David ?)
492      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
493     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
494    o correct a sign problem in cost_scat.F
495    o obcs and ptracers: fix boundary conditions for advections schemes
496      with larger stencil
497    o thsice adjoint: start
498    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
499      completeness
500    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
501      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
502    o ptracers adjoint:
503      * avoid extensive recomputatations
504      * fix missing re-init. of gptr (missed by TAF)
505    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
506      me to turn off the excessive output to STDOUT that this package produces
507    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
508      and add those terms in Vector-Invariant formulation.
509    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
510      if the control period (xx_hfluxperiod etc) is 0
511    o in profiles pkg, clean routines and fix details
512    o in ecco pkg, reading ssh data:
513      fix problem in case the model does not start at iter0=0
514    o fix mnc-pickup/restart for ptracers
515    o new package prifiles:
516      code to compute profile-based cost by Gael Forget
517      (modifs in ecco, ctrl, autodiff)
518    o Benign bug fix in initialization (spotted by M. Mazloff) of
519      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
520    
521    checkpoint58c_post
522    o adjoint: finish NLFS adjoint and provide reference output in
523      verification/global_ocean.90x40x15/results_ad_nlfs
524    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
525      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
526      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
527      with SEAICE_CGRID defined.
528    o move calendarDumps from "data" to "data.cal" and clean-up the code
529      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
530    o add useEXF & useCAL flags (for now, set in hard-coded way)
531    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
532      (were missing in NH mode, and wrong in quasihydrostatic mode).
533      waiting for Chris updated version of calc_gw to add those CALLs.
534    o fix bug in quasihydrostatic S/R ;
535      add a test for this option: global_ocean.90x40x15.qshyd
536    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
537      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
538    o add on/off flag useOffLine for package OFFLINE
539    o seaice:
540      - modify advection so that it works also on the C-grid
541      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
542        problem in multi-tile runs with C-grid
543      - add flags for clipping ice velocities and/or masking solver forcing
544      - fix drag (ocean on ice) formulation and a bug that caused noise in the
545        C-grid solver
546      - added a few comments to seaice_diffusion.F
547      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
548        are now exclusive)
549      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
550        required re-ordering the code a little:
551       + make DAIRN global variable (defined in SEAICE)
552       + move computation of the viscosities eta and zeta into a new separate
553         routine (because I need to recompute them in seaice_ocean_stress.F)
554    
555    checkpoint58b_post
556    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
557      update output.txt of exp. aim.5l_cs.thSI
558    o various mnc cleanups and improvements:
559      + shrink lookup tables by factor of ~4
560      + better error reporting when running out of lookup space
561      + able to handle longer path/file names (up to 500 chars)
562    o adjoint:
563      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
564      - TBD: "hidden" mom_vecinv recomp. in dynamics
565    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
566     (allow to differentiate between forcing components using new integer flags:
567      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
568     and add new flag to put Dissipation tendency out of Adams-Bashforth.
569    o ecco
570      - enable trend removal from SSH anomaly obs.
571    o adjoint
572      - a fix for PmEpR when #undef EXACT_CONSERV
573      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
574      - try to fix "hidden" recomp. in forward_step for NLFS
575        (NLFS seems broken sometimes after I checked it in)
576    o seaice:
577     - add c-grid version of the dynamic solver:
578       + three new routines that are the c-grid substitute lsr, dynsolver
579         and ostres
580       + put a few fields that were local to dynsolver into global common
581         blocks, so that I can move the computation of stresses etc into
582         seaice_lsr (saves coding but may break the adjoint).
583     - replace more hardwired parameters by runtime parameters
584     - add ice masks that mask the rhs of the implicit solvers where there
585       is no ice (commented out in seaice_dynsolver, because i am not sure
586       if this works properly), eventually this should replace the clipping
587       of ice velocities in seaice_dynsolver to +/-40cm/s.
588    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
589      include it only where its needed
590    o move balancing of fluxes before the call of external_forcing_surf
591    o seaice:
592      - correct units of turning angles (now they are really in degrees)
593      - move computation of GWATX/Y out of main routine into dynsolver
594      - initialize GWATX/Y in seaice_init
595    o Apply mask on Fresh-Water flux (needed for SSH forcing).
596      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
597    o seaice: add runtime flags for turning angles (default to zero)
598    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
599      and trend from exf forcing and ctrl control adjustments
600    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
601      (since checkpoint57x_post)
602    o change the default rotation period to 86164.s = the Earth rotation
603    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
604      and based on a reference stratification. Tested within hs94.cs-32x32x5.
605    o seaice advection: add code for choosing between the default (2nd order
606      central differences) and multiDim advection schemes provided by
607      pkg/generic_advdiff
608    o seaice:
609      - removed all references to SEAICE_GRID.h fields from
610        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
611        (cubed-sphere configuration will change a little)
612      - grid computations in seaice_init are obsolete now.
613      - cleaned up code a little so that is easier to read (hopefully).
614      - added new (better?) discretizations of default advection and diffusion
615        (turn on with SEAICEuseFluxForm)
616      - replace 1 in 3d global fields by kSurface in growth.F
617      
618    checkpoint58a_post
619    o seaice:
620      - bug fix in advect.F
621    o shelfice:
622      - separate shelfice load anomaly from pload (breaks with time
623        dependent forcing), => introduce constant field shelficeLoadAnomaly.
624        Its default is 0., but it may be computed more cleverly from (unknown)
625        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
626        done offline. A good approximation of the pressure load anomaly is
627        necessary to avoid large initial adjustment processes underneath
628        deep-reaching shelfice.
629      - small fix in ISOMIP shelfice_thermodynamics
630      - add more sophisticated thermodynamics of Hellmer (1989), this is
631        now the default
632      - give a few constants more intuitive names
633    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
634      if bulk formulae are used in long integration (especially EmPmR). Turn
635      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
636      if balancePrintMean, the imbalance that is substracted is printed to
637      STDOUT.
638    o fix bug (typo) in obcs_apply_eta.F
639    o add a new package shelfice which enables us to model the circulation
640      underneath shelf-ice with draughts of hundreds of meters.
641     - works
642     - to do: + include improved thermodynamics
643              + check whether kSurfC (from model/inc/SURFACE.h) can be used
644                instead of new field kTopC
645              + can we use topoFile, Ro_surf and existing code in ini_depth.F
646                instead of new field R_shelfIce and new code in ini_depth.F
647                and ini_mask_etc.F?
648              + adjust vertical mixing schemes?
649    o seaice pkg:
650     - add a cpp-flag to include a simple formula for a salinity dependent
651       freezing point of sea water at the surface
652     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
653       meridional stresses are now different (and hopefully correct)
654    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
655       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
656       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
657    o pkg/diagnostics: add options and parameters for regional-statistics
658       diagnostics ; define regions by reading a region-mask from a file
659       (might add other options later)
660    o pkg/bulk_force:
661     - add option and parameters to use AIM surface-flux formulae.
662     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
663       others forcing fields (defined in PARM05, parameter file "data") are loaded
664       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
665     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
666     - use the right EXCH call for uwind,vwind (to work on CS-grid).
667     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
668       and parameters (note: calcWindStress replaces .NOT.readwindstress).
669     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
670    
671    checkpoint58
672    o add "--embed-source" option to genmake2 which, when the supporting
673      tools can be compiled (as determined by genmake2) will turn on the
674      embed_files package which then embeds the entire MITgcm source code
675      (*.[fFhc] + Makefile) used for the build within the executable
676      - requested by CNH but off by default
677      - adds a paltry <9MB to the mitgcmuv executable in most cases
678      - only writes the output when useEMBEDSRC in eedata is true
679    o clean up 3-dim. relaxation codes:
680      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
681      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
682      * Thanks to Tom Haine for testing!
683    
684    checkpoint57z_post
685    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
686      affects output (@ truncation level) of exp. plume_on_slope ; updated.
687    o fix the pickup behavior for obcs in combination with ptracers
688    o fix a bug in ptracers_external_fields_load
689    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
690      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
691    o transfered surface NH pressure to eta field (if exactConserv).
692    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
693         and update lab_sea output.txt file.
694    o completing 3-dim. relaxation code: additional term
695         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
696      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
697      * At compile time, in "EXF_OPTIONS.h" set
698          #define  ALLOW_CLIMTEMP_RELAXATION
699          #define  ALLOW_CLIMSALT_RELAXATION
700      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
701          tauThetaClimRelax3Dim = 15552000.0,
702          tauSaltClimRelax3Dim  = 15552000.0,
703      * 3 cases:
704          1) Use a constant-in-time 3-dim. field
705          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
706          3) Real-time relax. to time-evolving prescribed field
707    o Adding Laplacian-type smoothness constraint on
708      initial and boundary (forcing) controls (ic, bc)
709      * enable at compile-time via
710        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
711      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
712      * Absolute scale somewhat unclear so far
713      * no area weighting was included since no other cost term does so far
714    
715    checkpoint57y_post
716    First step for a NLFS adjoint
717    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
718    o new init. routines for calc_r_star, calc_surf_dr
719    o still need to deal with ini_masks_etc
720    o testreport seemed happy
721    checkpoint57y_pre
722    
723    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
724    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
725    o add new offset feature to offline pkg (plus minor cleanup)
726    o cfc fixes for final year of integration
727    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
728      be in GCHEM_OPTIONS).
729    
730    checkpoint57x_post
731    o fix testreport Pb in multiple test experiment.
732    o cleanup our namelist syntax in verification:
733      - make it more F95 standards compliant (some work still needed)
734      - allows the vast majority of our tests to work with gfortran
735    o Non-Hydrostatic:
736     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
737     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
738    o Allow to apply AB on T,S rather than on AB(gT,gS):
739     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
740     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
741       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
742     - need a "clever" read_pickup to restart from the other AB formulation
743    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
744    o remove some unused variables (reduces number of compiler warnings)
745    o adjoint
746      * Disable useVariableViscosity for adjoint for time being
747        (there are a number of extensive recomputations)
748      * Initialize certain variables needed for adjoint
749    
750    checkpoint57w_post
751    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
752                 fix the singleCpuIO RS version of MDSWRITEFIELD
753       and add a WARNING if using globalFiles=T with multi-processors.
754    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
755      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
756    o tracer advection scheme:
757      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
758       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
759       was not very convenient).
760      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
761       (further tests needed for the implicit DST & Flux-Limiter schemes).
762    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
763      and sRef for convenience, handy, when you want to initialize
764      ptracers in a large domain with a constant non-zero value. Also,
765      untangle ptracers_init.F a little.
766    
767    checkpoint57v_post
768    o change dome exp. to use variable viscosity in side-drag terms.
769    o remove all the files from the cfc_offline test since they are now
770      incorporated into tutorial_cfc_offline which has been producing
771      identical results for a few days of testing
772    o add new parameter: sideDragFactor to enable half-slip-side BC
773      and change side-drag S/R to use viscosity from mom_calc_visc
774      (can switch back by setting sideDragFactor=0.); affects results at
775      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
776       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
777    o vorticity & strain are now computed without masking, to account for
778      no-slip-side BC in variable viscosity calculation ; mask is applied
779      anyway later on, before computing advection/coriolis terms.
780    o modify exp4 to test new obcs support for reading from external files
781      and for passive tracers
782    o fix behavior of ptracers_monitor when monitor output is written to a
783      netcdf-file; still not independent of monitor.F (writes in the same
784      file).
785    o change default value of tRef (put a uniform, meaningful value for ocean
786      & atmos) and initialize sRef (was missing, as Martin mentioned).
787    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
788      to be proportional to enstrophy dissipation length.  Thus,
789       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
790      This is now consistent with Smagorinsky and with the manual.
791    
792    checkpoint57u_post
793    o OBCS and PTRACERS: add open boundary support for passive tracers
794      - either use homogenous (pseudo) v.Neumann conditions or prescribe
795        OB-values from file; this is not different from the way theta and salinity
796        are treated
797      - however, Orlanski-radiation conditions are not supported, and the model
798        will stop if you use pTracers and Orlanski at the same time.
799      - beefed up the rountine obcs_external_fields_load: now only those open
800        boundary values are overwritten with values from files for which there
801        are really files, otherwise the OB-fields remain untouched. This makes
802        it possible to use different OBs at different ends of the domain (as
803        with EXF)
804    o reduce number of exch calls in shap_filt (s2).
805    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
806      truncation level) 4/5 MLAdjust test results (11&12 digits match).
807    
808    checkpoint57t_post
809    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
810    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
811      same truncation, independent of the face number: affects affects several
812      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
813    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
814      note that biharmonic viscosity + no-slip was not tested in any experiment.
815    o fix bug in non-linear free-surf side-drag ; generate new output for
816      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
817    o make mnc honor the writeBinaryPrec flag for most kinds of output
818    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
819    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
820      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
821    o add brackets in multi-terms sum to get same truncation, independent of
822      the face number (manage to get exactly same value of gU,gV at the cs-edge)
823      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
824    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
825      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
826      a maximum grid-scale Reynolds number.  Also, changes all length calculations
827      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
828      Suggested values of viscosity parameters found in mom_calc_visc.
829      Many new viscosity diagnostics available.
830    
831    checkpoint57s_post
832    o Add clearing-house for viscosity calculations, mom_calc_visc and
833      correct numerous bugs in LeithD and Smagorinsky discretizations.  
834      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
835      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
836      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
837      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
838      The Strain-Tension form is now called with useStrainTensonVisc=.true.
839      ViscAhStrain and viscAhTension are now retired.
840    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
841    o In response to JMC's bug report, genmake2 now ignores any soft-links
842      that it finds in the *current* directory when searching for files.
843      Soft-links found in any other source directories will still work as
844      they did before.
845    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
846      a C routine to unlimit the stack size
847    o mnc-ify pkg/aim snapshot vars
848    o mnc-ify pkg/land as requested by Daniel
849    o various changes to mnc including:
850      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
851      - output can now be grouped so that all files within a group
852          change the ITER portion of their names in lock-step together
853      - can now read ("global") PER-FACE (in addition to PER-TILE) files
854          and works with both EXCH1 and EXCH2 (but needs more testing)
855      - writing works for all verification test cases w/ g77 on Linux
856    
857    checkpoint57r_post
858    o make MNC variable initialization happen earlier
859    o add diagnostics for (almost) each term of the momentum Eq.
860    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
861    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
862    o remove MINIMAL_TAVE_OUTPUT option ;
863      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
864    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
865      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
866    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
867    o add time-dependent SST, SSS control
868    o cost terms in ecco/ modularized (new cost_generic.F)
869    o cost_averages routines are modularized (new cost_averagesgeneric.F)
870    o new infrastructure for seaice model vs. obs misfits in seaice/
871      * driver from the_main_loop.F is seaice_cost_driver.F
872      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
873      * gradient check in Exp. 6a of natl_box_adjoint/
874    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
875      (see README file)
876    
877    checkpoint57q_post
878    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
879    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
880      - bug was reported by Jean-Michel and Ian Fenty
881    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
882      update exp. cpl_aim+ocn output.
883    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
884      Needed for high-res. runs with large global files
885      to be able to limit tapelev size
886    o Changed some tests for adjoint:
887      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
888      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
889      * global_ocean.90x40x15/ back to default 3-level checkpointing
890    o Modifications to enable scripted COMMON to MODULE conversion
891      * verification/OpenAD/code/ has necessary scripts and description;
892      * converts, compiles and runs successfully;
893    
894    checkpoint57p_post
895    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
896    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
897      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
898    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
899    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
900      (was already the case for dissipation with mom_vecinv,
901       and also the case for grad.PhiHyd when staggered-timeStep)
902      This will allow to put dissipation out-off the AB time-stepping.
903     Unfortunately, affects truncation error. Update output of exp. that "fails"
904      (cg2d matching number) and leave the others for later: front_relax(10),
905      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
906      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
907    
908    checkpoint57o_post
909    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
910      (2) its ready to be documented during the 20050801 DocFest
911    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
912      for ideal_2D_oce and lab_sea on linux_ia32_g77
913    o set to #undef CTRL_SET_OLD_MAXCVARS_30
914      in global1x1_tot/code_seaice_adj to access indices 32, 33
915      (worth another tag)
916    
917    checkpoint57n_post
918    o adding precip control xx_precip 32
919    o adding swflux control xx_swflux 33
920    o Replacing 10 forcing penalty cost routines by 1 generic.
921    o Implementing partitioning in time-mean and variable adjustment
922      for atmos. state.
923    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
924    o in natl_box_adjoint:
925      * updated exp 1 to 10
926        (but does not have time-mean vs. variable split results yet)
927    o updated global1x1/*_seaice_adj/
928      to incorporate latest changes
929    o enable useSingleCpuIO for mdsio vector routines
930      (applies in particular to tapelev I/O)
931    o removed inefficient K-loop in all active_file*control*.F
932    
933    checkpoint57m_post
934    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
935      and advect_cs (use EXCH-2 and standard cs-32 grid files).
936    o pkg/exch2: filling of face-corner halo regions is optional
937      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
938    
939    checkpoint57l_post
940     tag before updating tutorials (pre-release-2)
941    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
942       for output and interpolation of input fields onto model grid)
943    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
944       Affects results of exp. rotating_tank ; update output.txt.
945    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
946          and taking the square quantity and/or using a fraction-weight field.
947    o fix aim_diagnostics_init.F mate numbers.
948    o add mnc output capability to diagnostics/diagstat and update
949      our cvsignore files for the ACSII output generated
950    
951    checkpoint57k_post
952    o lab_sea now uses diagnostics package and provides a suite of
953      new EXF diagnostics output.
954    
955    checkpoint57j_post
956    o exf
957      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
958        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
959        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
960      * extended diagnostics output
961        - now includes all EXF variables
962        - hs, hl moved to common block
963        - separate S/R for diagnostics, called after ctrl vector is added
964        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
965        - EXFqnet contains true Qnet (i.e. includes qsw)
966      * updated verif. lab_sea, global_with_exf
967      * Rearranging hflux (exf_mapfields -> exf_getforcing)
968        to ensure that diagnostics sees a true EXFqnet
969    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
970    o diagnostics pkg: change pointers so that 1 diagnostic can be used
971      several times with different frequencies.
972    o mnc-ify the thsice package as requested by Daniel Enderton
973      - the monitor--MNC output needs work
974      - many attributes need to be added (most are currently blank)
975    o mnc-ify theaim_v23 package as requested by Daniel Enderton
976      - many attributes need to be added (most are currently blank)
977    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
978    o add Sadourny like discretization to the 4th.O vorticity advection scheme
979    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
980      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
981         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
982    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
983     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
984    
985    checkpoint57i_post
986    o Diagnostics package was changed: diagnostic allocation is now deactivated
987      by setting an empty file name in the namelist (used to be by setting 0 frequency)
988    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
989      add 1rst Order upwind vertical Shear.
990    o add a quick fix for A/B checkpointing in OFFLINE mode
991    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
992      end-run around the C/Fortran linking horror in eesup/src/timers.F
993    o added pkg/runclock: allows user to terminate run based on wall clock
994    o added non-hydrostatic scaling parameter: nh_am2
995    o pkg/my82: futile attempt to make results compiler-independent by adding
996      some "_d 0", etc. no effect.
997    o for mnc output, fill the 'T' coordinate var with myTime and create a
998      separate 'iter' variable for iteration count
999    o pkg/diagnostics:
1000      add new capability: output of Global/Regional & per-level statistics ;
1001      tested against monitor output (including land & thSIce) on various exp.
1002    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1003    
1004    checkpoint57h_done
1005      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1006      data.diagnostics, data.gchem, data.ptracers) is done.
1007    
1008    o pkg/diagnostics: prepare for Global/Regional statistics.
1009      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1010    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1011      and rename it: DIFFERENT_MULTIPLE
1012    
1013    checkpoint57h_post
1014    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1015    o pkg/diagnostics: change output frequency, now in seconds (instead
1016      of Nb of iterations). This requires to change data.diagnostics.
1017    checkpoint57h_pre
1018    
1019    o in mnc, let the user create the output dir if both mnc_outdir_date
1020      and mnc_outdir_num are false
1021    o add fflags() to pkg/diagnostics which allows one to specify, on a
1022      per-file basis, the file precision [default behavior is unchanged]
1023    o added diagnostics to pkg/kpp, including computation of mixed layer
1024      depth based on a temperature/density criterion
1025    o updated verification/natl_box to test the new pkg/kpp diagnostics
1026    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1027    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1028    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1029      not mnc -- this mistake was found by JMC and is now corrected
1030    
1031    checkpoint57g_post
1032    o add Adams-Bashforth 3rd Order time stepping:
1033      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1034      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1035    checkpoint57g_pre
1036    
1037    o make lambda[Theta,Salt]ClimRelax spatially varying
1038      (default remains spatially uniform constant based on tau)
1039    o added new control variables
1040      * init. uVel, vVel, etanN
1041      * lambda[Theta,Salt]ClimRelax
1042    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1043      (suggested by G. Forget)
1044    
1045    checkpoint57f_post
1046    o add parameter "baseTime" = model base time = time at iteration zero
1047      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1048      account for baseTime shift
1049    o move Coriolis arrays from PARAMS.h to GRID.h
1050    checkpoint57f_pre
1051    
1052    o mnc-ifying the seaice package
1053    o introduced an alternative length scale calculation for use in the limiting
1054      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1055    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1056    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1057      as well as grad(vort3).  Made it compatible with both approximate form
1058      for the cubed sphere and full form of these gradients.  Added flag
1059      useFullLeith to select between approximate and full form.  
1060    o add "d0" in getcon.F to reduce differences between compilers/platforms
1061      update output.txt of exp. fizhi-gridalt-hs
1062    o change port_rand funtion to allow to set the seed.
1063    o fix obscure MNC bug involving conversion between reals and integers
1064      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1065        new version is now more standards-compliant
1066    o adjoint-related modifications
1067      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1068      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1069      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1070    
1071    checkpoint57e_post
1072    o Adding eddy stress controls a la Ferreira et al.
1073    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1074    
1075    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1076      update output.txt of exp. fizhi-gridalt-hs
1077    o add more "Z" dimensions and associated coordinate vars to MNC
1078    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1079    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1080      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1081      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1082      months and years.  Requires pkg/cal.
1083    o diagnostics: add pickup functionality
1084      - off by default for backwards compatibility
1085      - current version only uses MDSIO -- MNC will be added
1086    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1087    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1088    
1089    checkpoint57d_post
1090    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1091    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1092      output from the diagnostics package
1093    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1094    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1095      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1096    o add coordinate variables to the MNC output from the diagnostics package
1097    o change MNC-flags default value: true when useMNC=TRUE
1098    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1099      the ability (off by default) to read the grid information using MNC
1100    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1101    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1102    o do snap-shot diagnostics at the middle of the time-interval (instead of
1103      at the end).
1104    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1105      new test for AIM with thSIce + slab-ocean
1106    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1107    o move state variable diagnostics to the beginning of the time step ;
1108      (note: still needs some work specially for snap-shot diagnostics)
1109      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1110    
1111    checkpoint57c_post
1112    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1113    o generate new output.txt files on faulks with g77 & the new -ieee option
1114    checkpoint57c_pre
1115    
1116    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1117      update output.txt of exp. global_ocean.90x40x15
1118    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1119      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1120    o add saltFlux(+File) forcing capability with periodicExternalForcing
1121    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1122    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1123    o improvements for the MNC output from DIAGNOSTICS:
1124      - correct handling of the unlimitied dimension
1125      - all dims now have associated coordinate variables
1126      - variables located at U, V, and Corner ("Z") points are now written
1127        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1128        *all* data points are output
1129    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1130    o added pkg/seaice/seaice_monitor.F
1131    o mdsio_readfield.F can now read files visible only to master MPI process.
1132    o pkg/seaice: some test code for ice-modified ocean stress
1133    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1134      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1135      spurious negative numbers for precipitation and humidity.  Will cause
1136      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1137    o pkg/ctrl/
1138      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1139        May be enabled via doPackDiag
1140      *  introduce z-scaling of
1141         + gradient (doZscalePack) and
1142         + control (doZscaleUnpack)
1143    o pkg/mdsio/
1144      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1145      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1146    
1147    checkpoint57b_post
1148    o simplify options in diagnostics_fill arguments (remove weird combinations)
1149    o fix MNC coordinate variables so that they now contain per-face index
1150      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1151      general, EXCH2 grids are only aligned to a "local" coordinate system
1152    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1153    o Implement instantaneous output within pkg diagnostics:
1154      setting a negative frequency in data.diagnostics produces
1155     "snap-shot" output (as opposed to time-average if freq > 0)
1156    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1157      NOTE: change ptracer diagnostics name: use 2 characters to work with
1158            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1159    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1160      becomes the coordinate variable for the 'T' dimension
1161    o add CF-style coordinate variables to MNC
1162      - just a first cut:  numbers are meaningless on the cubesphere and
1163        missing along the T axis but otherwise it works!
1164    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1165    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1166    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1167      this is based directly on what the model compute, so that the content of
1168      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1169    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1170    o clean up build options files for SunOS, in particular
1171      - remove -traditional from xmakedepend
1172      - change -xarch=v9 to -xarch=native for f77
1173      - restore use of make (not gmake)
1174      - add CC=gcc if using g77
1175    o changes per discussion of AM, JMC, & EH3 today:
1176      - move redundant "grid" variables out of "state" -- in preparation of
1177        creating proper CF-style coordinate variables and in recognition
1178        that any/all grid variables can be easily copied (eg. w/NCO) from
1179        the grid files into any of the other NetCDF files
1180      - *always* output grid variables with MDSIO (this will eventually be
1181        changed)
1182      - output MNC grid file if useMNC is true
1183    o every instance of _END_MASTER() has been found and replaced with
1184      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1185      preprocessors
1186    o re-arrange diagnostics pkg initialisation:
1187     - allow each package to extend the available diagnostics list
1188     - add some checking and fix small problems (multi-threaded, ...)
1189     - new S/R diagnostics_fill (replace fill_diagnostics):
1190       look through the short list of active diag. (instead of the long list)
1191       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1192    
1193    checkpoint57a_post
1194    o this set of changes restores TAMC compatibility
1195      tested for global_ocean.90x40x15 adjoint on trough
1196      (what a pain)
1197    
1198    checkpoint57a_pre
1199    o some modifs in tools/build_options for sunos
1200    o call ctrl_pack for ctrl at end for optimcycle=0
1201    
1202    checkpoint57
1203    o add horizontal bi-harmonic viscosity for vertical velocity
1204      - new parameter viscA4W (defaults to viscA4)
1205      - affects only non-hydrostatic code
1206      - to be done: no-slip lateral boundary conditions
1207    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1208    o implement Implicit Vertical advection for pTracers
1209    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1210      (implemented also for implicit vertical diffusion & advection)
1211    o OBCS: extend application of tracer open boundary conditions
1212      to a strip beyond the boundary of width Olx/Oly
1213    o add call monitor to TAF set of required calls (flow directives)
1214      and include in natl_box_adjoint
1215    o untangle a few ifdefs related to cost, ctrl, autodiff
1216      untangel a few ALLOW_ECCO_OPTIMIZATION
1217    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1218      (theta2, salt2 in ecco_cost_weights)
1219    
1220    checkpoint56c_post
1221    o OBCS as control variables
1222      - update ctrl_ad_diff.list, obcs_ad_diff.list
1223      - remove balance of obcs controls from default
1224      - fix index bug nobcs in ctrl_init
1225      - fix dummy fields filen in ctrl_pack
1226      - add dummy weights for obcs
1227    o lsopt: comment out fort.94 output
1228    o optim:
1229      - remove unnecessary header files
1230      - adjusted namelists
1231      - add xerbla.F to Makefile
1232    o exf:
1233      - multiple modifications of exf_check_range
1234      - unit change in exf_init_runoff from [m/year] to [m/s]
1235    o mdsio:
1236      - i/o-vector change debugLevel from debLevA to debLevB
1237    
1238    checkpoint56b_post
1239    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1240      is called from DO_THE_MODEL_IO
1241      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1242      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1243      - clean up PTRACERS_WRITE_TIMEAVE a little
1244    o add another verification experiment that tests both the cfc-pkg and
1245      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1246      reactive tendencies treated inline with regular timestepping
1247    o testreport previously did a lousy job of comparing small numbers, so
1248      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1249      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1250      testreport.
1251    o ptracers_monitor: bug fix for MPI
1252    
1253    checkpoint56a_post
1254    o GCHEM: finish reorganizating the package
1255      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1256        (introduces another 3D-array for each passive tracer, but only if
1257        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1258        gchemTendency is not needed because the timestep is done separately)
1259      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1260      - GCHEM is now---more or less cleanly---separate from PTRACERS
1261      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1262        so clear to me how that should be done in a general way.
1263    o CFC: improve formatting of output in CFC_ATMOS
1264    o PTRACERS:
1265      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1266        that ALL experiments with ptracers enable can be checked. This makes
1267        GCHEM_MONITOR obsolete.
1268      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1269        monitorFreq
1270      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1271    o add PTRACERS (PTR0[1-5]) to testreport output
1272    o exf_check_range:
1273      * default changed to .TRUE.
1274      * will check values for niter0 if debLevA, every timestep if debLevB
1275      * STOP in exf_check_range if 'out of range'
1276      * range chosen generous to allow for potential extema
1277      TBD: a version with stricter range
1278           permitted range would be runtime parameters
1279    o GMredi:
1280      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1281      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1282      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1283    o GCHEM:
1284      - move call to GCHEM_FORCING_SEP, so that it is now called before
1285        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1286      - introduced a useGCHEM runtime flag and applied it everywhere.
1287      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1288        this flag is now only visible within GCHEM-pkg routines.
1289      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1290        be replaced by a 3D array that is computed before thermodynamics; for
1291        this, the tracer ID iTracer had to be included into the parameter list
1292        of ptracers_forcing
1293      - set up forward_step to call gchem_forcing, that will replace
1294        gchem_forcing_int in ptracers_forcing
1295      - cleaning up
1296    o small cleaning of exch2: remove files that are also in eesupp/src
1297    
1298    checkpoint56
1299    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1300    o mnc: cleanup "full" files--fixes out-of-memory problem
1301    o ECCO-GODAE
1302      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1303      * fully merged and updated from SIO code
1304        windstress sign change affects
1305        - exf_inscal_[u/v]stress
1306        - sign of xx_tau[u/v] adjustments
1307        - signs in cost_scat
1308      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1309      * natl_box_adjoint updated and compressed
1310      * 2-level checkpoint switch added
1311        (tested in EXP. 1 of natl_box_adjoint)
1312      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1313    o SVD
1314      * first complete, non-hacked version for SVD calculations
1315      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1316        performed via direct access files admtlm_vector.it????
1317        (via ctrl_[un]pack)
1318      * optimcycle is used for ARPACK iteration counter
1319        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1320      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1321        and add linear transforms where necessary
1322      * controls are initial/final SST, SSS (can be extended; need to check
1323        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1324    o mdsio: filename info to both stderr, stdout
1325    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1326      from sign change
1327    
1328    checkpoint55j_post
1329    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1330      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1331    o add consistent build directories and .cvsignore files to verification
1332    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1333    o make all subroutines 30 or less characters in length for certain older
1334      compilers to work (a thorough search only turns up two routines in
1335      pkg/ptracers)
1336    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1337      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1338    
1339    checkpoint55i_post
1340    o change arrays for total vertical diffusivity (2.D if explicit,
1341      3.D if implicit) ; each ptracer uses its own background value.
1342    o added mnc/NetCDF output capability to ocn_compon_interf
1343      - added bits to verification/cpl_aim+ocn so that it can run on
1344        ITRDA and other clusters without the mpirun "-wd" option
1345    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1346      configuration
1347    o give MNC the ability to create additional files rather than
1348      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1349      - the default is just less than 2GB which is a practical limit
1350        on many systems
1351    o Compute the non-local term using either KPP vertical diffusivity (=default)
1352       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1353    
1354    checkpoint55h_post
1355    o add verification test "vermix"
1356    o remove all the *_ioinc flags and replace with the single global
1357      outputTypesInclusive flag
1358    o allow to set a vertical profile of vertical diffusivity for T & S
1359    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1360    o useMNC moved from data.mnc to data.pkg
1361    
1362    checkpoint55g_post
1363    o Renaming carbon AD experiments to comply with testreport conventions
1364    o Updating adjoint of Held-Suarez hs94.1x64x5
1365    o Fixing directives for non-ECCO forward_step, after ECCO directives
1366      have been fixed to avoid recomp. of do_oceanic_phys
1367      Works well for global_ocean.90x40x15,
1368      but recomp. issue remains for carbon
1369    o Updating adjoint output for natl_box_adjoint after
1370      pkg/ecco has been modified (see taga c55d_post)
1371    
1372    checkpoint55f_post
1373    o rename to timeave_init_fixed
1374    
1375    checkpoint55e_post
1376    o some delicate re-shuffle of store directives to avoid one
1377      extra call of do_oceanic_physics
1378      affects ecco_the_main_loop.F, do_oceanic_physics.F
1379      checkpoint_lev1_directives.h
1380    o NB: this may break global_ocean adjoint temporarily,
1381      but it is clear how to fix it. Will do later, need this now.
1382    
1383    checkpoint55d_post
1384    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1385    o ecco_cost_weights is modified to 1x1 runs
1386    o modifs to allow observations to be read in as
1387      single file or yearly files
1388    o enable to read exf forcing fields as either
1389      single file or yearly files (flag useExfYearlyFields)
1390    checkpoint55d_pre
1391    
1392    o switch between 2-level and 3-level checkpointing
1393    o add ability of MNC to write local and "partial" (eg. 2D slices where
1394      the full 3D field is never actually stored) arrays to NetCDF files
1395      with the correct (that is, the complete multi-dimensional) set of
1396      array indicies
1397      - used in mom_vecinv() to write the diagFreq output
1398      - tested (demonstrated) in verification/aim.5l_cs
1399    o further mnc-ification
1400      - add verification/lab_sea to the list with mnc setups
1401      - fix undefined mnc v-names in cd_code
1402      - add kpp to mnc output (both snapshot and timeave)
1403    o non-hydrostatic code
1404      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1405        in calc_gw.F
1406      - defaults to viscAh
1407      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1408        friction or Leith) in non-hydrostatic mode, as long as there is
1409        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1410    o pkg/cost
1411      extend simple cost functions to treat time mean quantities
1412      (T,U,V) via cost_accumulate_state from cost_tile
1413    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1414        be 2 times larger than the minimum size the advection scheme requires.
1415        now get a perfect conservation of salt in advect_cs test-exp (updated)
1416    o GGL90 (Gaspar's TKE mixed layer)
1417      - add horizontal diffusion of TKE, requires exchanges in
1418        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1419        default. In OPA there is no horizontal diffusion of TKE but the
1420        mixing coefficients are computed from a horizontal average of TKE of
1421        6 points or so. I think that diffusion has a little more physical
1422        justification.
1423      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1424        was in vain)
1425      - mask tke-variable in ggl90_init
1426    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1427    o fix biharmonic diffusion on CS-grid.
1428    o more obcs stuff
1429      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1430        for reading boundary values. This routine is called from
1431        obcs_prescribe_read
1432      - updated obcs_check
1433      - changed sponge layer relaxation parameter units for days to seconds
1434      - turned off sponge layer by default
1435      - changed argument list of OBCS_CALC to myTime+deltaTclock
1436      - fixed about 35 bugs in obcs_external_fields_load
1437    
1438    checkpoint55c_post
1439    o obcs stuff
1440      - new runtime flags useOBCSprescribe, useOBCSbalance
1441      - re-arranged obcs_calc
1442      - moved exf_getobcs to obcs_prescibe_read
1443        obcs_prescibe_read is called after ORLANSKI stuff
1444        and independent of it (executable can contain all).
1445      - updated obcs_check
1446      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1447        These may be necessary only if tangential velocities are
1448        prescribed at OB, not sure, needs testing.
1449    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1450      which simplifies the calls and passes the ifc check-bounds test
1451    
1452    checkpoint55b_post
1453    o add a 2D scalar, Z location, exchange_2 routine.
1454    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1455      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1456      affects advect_cs results (for the wrong reason): update output.txt
1457    o use a more standard discretization for biharmonic viscosity ;
1458     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1459      affects results of dome set-up: update output.txt
1460    o fix gad_advection.F (CubedSphere part), back to version 1.23
1461    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1462    
1463    checkpoint55a_post
1464    o merged code to
1465      * prescribe/read time-dependent open boundaries
1466        (works in conjunction with exf, cal)
1467      * sponge layer code for open boundaries
1468      * each boundary N/S/E/W now has its own CPP option
1469        (healthy for the adjoint)
1470    
1471    checkpoint55
1472    o up-to-date adjoint of previous breaks
1473      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1474      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1475      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1476      - carbon: * remove tr1-related adjoint verification
1477                * add ptracer as control variable
1478    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1479      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1480    
1481    checkpoint54f_post
1482    o in verification/carbin/ remove experiment related to
1483      ALLOW_PASSIVE_TRACER (array tr1 etc)
1484      code_ad/ input_ad/ results_ad
1485    
1486    o add two new packages
1487      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1488        + subject to optimization (memory)
1489      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1490        + subject to reordering (many GOTOs in the original code)
1491        + so far opps is called for every (i,j) point, and then operates in
1492          the vertical; one may want to reorder the scheme in order operate in
1493          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1494          fields)
1495    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1496      - all verification tests compile and run with linux_ia32_g77
1497      - defaults are compatible with current input files--nothing
1498        should change if you were not previously using MNC
1499      - MNC output has been added in numerous places (eg. timeave)
1500        but there are still a few writes not yet do-able with MNC
1501        (this is in progress)
1502      - flags now allow for either/or/both use of MDSIO and MNC and
1503        documentation will soon follow
1504      - numerous small formatting cleanups for ProTeX
1505    o add version info (via BUILD_INFO.h) to MNC and stdout
1506    
1507    checkpoint54e_post
1508    o add two new packages
1509      - pp81 (Packanowski and Philander, 1981), Richardson number and
1510        stratification dependent mixing
1511      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1512      - these scheme operate in a similar manner as KPP (without ghat, of
1513        course), however there is only one diffusivity that is used for both
1514        temperature and salinity (and passive tracers)ç
1515    o add offline package
1516    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1517      provided by Stephanie Dutkiewicz
1518    o genmake2: add ability to search for C compilers and cleanup test output
1519      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1520    
1521    checkpoint54d_post
1522    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1523    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1524      leading to additional shift by 5 days each year of integration
1525       (i.e. leading to considerable offset over the years)
1526    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1527    o start with no AB and no initial filtering (staggerTimeStep):
1528      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1529    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1530      (external loading & cpl import/export stay in forward_step.F)
1531    o update coupling interface to work with new staggerTimeStep
1532    o change MDSIO ptracers_pickup.
1533    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1534    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1535    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1536    
1537    checkpoint54c_post
1538    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1539      this affects (truncation error) output.txt of test-exp:
1540       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1541    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1542    o change Qnet to always be the net heat flux, (+upward).
1543      affects (truncation error) output of natl_box exp.: updated
1544    o define the max number of passive tracers in PTRACERS_SIZE.h
1545    o start to test mnc routinely in exp0
1546    o add sea-ice loading (sIceLoad) as a new forcing field.
1547    
1548    checkpoint54b_post
1549    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1550       impressive on Altix and Opteron systems)
1551    o diagnostics can now write NetCDF files through the mnc package
1552    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1553    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1554    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1555      affects (truncation error) output of lab_sea & natl_box exp.: updated
1556    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1557    
1558    checkpoint54a_post
1559    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1560    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1561    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1562    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1563      + internal_wave (shift in writing cg2d_ini_res)
1564    checkpoint54a_pre
1565    
1566    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1567      - modified verification/lab_sea and natl_box_adjoint accordingly
1568    
1569    checkpoint54
1570    checkpoint53g_post
1571    o prepare splitting of thermodynamics: store convect.counter in common block
1572    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1573      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1574    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1575    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1576    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1577    o restore adjointability
1578    
1579    checkpoint53f_post
1580    o modifications that affect AIM experiment results (update output.txt):
1581      - no advection of S at top interface Nr (pkg/generic_advdiff)
1582      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1583    o AIM pkg:
1584      - include stability function into surf.Flux derivative relative to Tsurf
1585      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1586    
1587    checkpoint53e_post
1588    o merged cylindrical coord configuration
1589    o added rotating_tank experiment
1590    checkpoint53e_pre
1591    
1592    checkpoint53d_post
1593    o faulks upgraded: re-generate output.txt that have changed:
1594       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1595    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1596    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1597    o added Sadourny discretization of Coriolis
1598      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1599      - re-enabled use of omega3 (useAbsVorticity)
1600    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1601      vector-invariant equations
1602      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1603    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1604      hopefully without new bugs
1605      - still to do: biharmonic friction for non-hydrostatic w
1606    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1607    o regenerated output for global_ocean_ebm (using -ieee)
1608    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1609      of mom_common/
1610      - simple re-arrangement of instructions within computing loop
1611    checkpoint53d_pre
1612    
1613    checkpoint53c_post
1614    o new version of coupler for AIM+thSIce and Ocean models
1615     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1616     - land: change Evaporation of snow
1617     - aim with thSIce: fix bug in snow-precip.
1618    o changes to calc_gw.F
1619     - bug fix for w^2 term near the bottom boundary
1620     - (hopefully) improve the lateral slip boundary condtions for use with
1621        partial/looped cells
1622      - because the bug fix changes two verification experiments anyway (exp5
1623        and plume on slope), change the lateral boundary condition from half slip
1624        to the value of no_slip_sides
1625    o ebm package wasnt quite up to the parallel task. Fixed that.
1626    o Adjoint of EBM package + verification
1627      * TLM OK
1628      * ADM not sufficient accuracy yet (needs further testing)
1629    
1630    checkpoint53b_post
1631    o Commiting new energy balance model to repository
1632      * package is pkg/ebm
1633      * verif. is verification/global_ocean_ebm
1634      * references are in ebm_driver.F
1635    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1636    C        Global thermohaline circulation. Part I:
1637    C        Sensitivity to atmospheric moisture transport.
1638    C        J. Climate 12(1), 71-82
1639    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1640    C        Global thermohaline circulation. Part II:
1641    C        Sensitivity with interactive transport.
1642    C        J. Climate 12(1), 83-91
1643    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1644    C        Destabilization of the thermohaline circulation
1645    C        by atmospheric eddy transports.
1646    C        J. Climate 7(12), 1870-1882
1647    o Will need long integration testing.
1648    checkpoint53b_pre
1649    
1650    o created pkg/mom_common in preparation for variable viscosity code
1651    o renamed and split ini_mnc_io
1652    o pkg/land: only liquid water can diffuse or run-off
1653    o AIM using land: soil wetness availability account for snow
1654    o added printMapIncludesZeros to EEPARMS namelist
1655    
1656    checkpoint53a_post
1657    o restore TAMC compatiility for exf_constants.h
1658      (no usage of _d in .h)
1659    o Additional storing in KPP in an attempt to fix
1660      TAMC problem with adjoint of KPP code.
1661      (no success...)
1662      Identical code works fine with TAF.
1663    o Fixed verification/natl_box_adjoint experiments.
1664      Initial conditions for Experiments 4 and 5 are now
1665      set to "SEAICE_initialHEFF=0", which is more reasonable,
1666      and hence gives results closer to that of Experiment 2.
1667      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1668    
1669    checkpoint53
1670    o stable checkpoint with up to date adjoint
1671      TLM tests only run for 1st grdchk at the moment. Its unclear if
1672      this is a code problem or a problem with resetting code for g_
1673      variables that is being autogenerated wrong.
1674      Otherwise:
1675       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1676       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1677         are both still in chaos following their security messes.
1678    
1679    checkpoint52n_post
1680    o various build (mostly genmake2) changes including:
1681      - ability to build/run more easily within Cygwin and MacOS X
1682      - more complicated Makefiles with a stronger dependence on Gnu Make
1683    o pkg/seaice modifications
1684      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1685        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1686        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1687      - changed proxy for geostrophic velocity and updated
1688        verification/lab_sea/results/* accordingly
1689      - removed ADI dynamic solver from pkg/seaice
1690      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1691        they caused a segmentation fault under certain circumstances
1692      - removed unused field WATR
1693    o bug fix in exf-package:
1694      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1695         now reflect that.
1696    o small fixes in the cal-package:
1697      - set reference date to first of January for the 'model'-calendar
1698      - failing of cal_CheckDate in cal_FullDate now actually results in a
1699        warning
1700    o small modifications in exf-package to increase flexibility:
1701      - change climtempfreeze from a constant to a runtime parameter that
1702        is specified in data.exf_clim (default = -1.9)
1703      - introduce runtime parameter windstressmax (default = 2.0) that is
1704        specified in data.exf
1705    o fix in pkg/thsice:
1706      - update Evap (Tsf changes) to be consistent with Latent heat flux
1707      - maintain snow precipitation unchanged (even if Tsf >=0).
1708     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1709    
1710    checkpoint52m_post
1711    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1712      this does not change any of the results, because myIter=0 in swfrac always
1713      lead to jwtype=2 (the default anyway), but the call makes little sense
1714      as a default
1715    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1716    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1717      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1718    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1719    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1720    o extending useSingleCpuIO option to work with new exch2 I/O format
1721      - old-style, missing-tile I/O is still accessible by defining CPP
1722        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1723    o monitor package can write to NetCDF files and/or STDOUT
1724    o fix re-definition bug in MNC_GRID_INIT_ALL()
1725    o doc/api_reference added
1726      - a framework for building an API Reference Manual using all
1727        the "protex" comments embedded in the code
1728      - see pkg/generic_advdiff, pkg/mnc for examples
1729    o MNC:
1730      - make myThid the last argument for all subroutines
1731      - new default for the grid files: NO halos
1732      - add useMNC and other run-time flags
1733      - separate per-file-group handling of the unlimited dimension
1734      - early initialization of MNC w/ flags read at the eeboot stage
1735        and lookup tables set in initialize_fixed
1736      - write all MNC output to a freshly-created directory
1737    o thermodynamics sea-ice (thsice) is now tested with testreport.
1738    o test exp. advect_cs: use the standard cs32 grid ; update output.
1739    o Added functionality to grdchk:
1740      pick global i,j,k position (or nearest wet) where to perform check.
1741    
1742    checkpoint52l_post
1743    o new land formulation:
1744      a) use ground enthalpy as prognostic variable to ensure exact
1745         energy conservation.
1746      b) account for water temperature and for latent heat of freezing
1747         in all processes (rain, run-off, ground storage)
1748      c) compute surface and ground temperature implicitly.
1749    o aim_v23 modification for new land model:
1750      a) Treat separately land / ocean / sea-ice surface fluxes
1751         to allow implicit computation of land & sea-ice surface temp.
1752      b) add snow precipitation.
1753    checkpoint52l_pre
1754    
1755    o fix problem (when 1 tile is empty) in min/max monitor.
1756    o fix bug in timeAve (u,vZetatave in common block)
1757    o no restoring terms under ice for pkg/seaice
1758    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1759    o bug fix for pkg/seaice pickups
1760    o change MNC call locations and add coordinate attributes
1761    o mask vorticity at the corner ; affects global_ocean.cs output
1762    o fix ini_curvilinear_grid ; test CS experiments with mpi
1763    o aim.5l_cs: modify sea-ice fraction input file ; update output
1764    o exf: Adding simple range check routine for exf fields after read
1765    
1766    checkpoint52k_post
1767    o removed top-level directory "diags"
1768      - we migrated these functions to pkg/timeave a long time ago
1769    o fixed bug introduced in pkg/monitor
1770    o accuracy ctrlprec = 32 insuffient for gradient checks using
1771      averaged fields (I/O via cost_averages)
1772      -> use ctrl.h in active_file*.F to control I/O precision.
1773    o paramter list of CALL ADTHE_MAIN_LOOP
1774    o added initial do_the_model_io to ecco
1775    o set all ...Freq to zero after cost_final
1776      taveFreq, dumpFreq, pChkptFreq
1777    o MAIN and ECCO differentiability restored
1778    
1779    checkpoint52j_post
1780    o fix nchklev in tamc.h for global_ocean...
1781    o Bringing flow and store directives up-to-date
1782    o Really weird thing!
1783      call do_the_model_io from the_main_loop with parameters
1784      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1785      TAF places a faulty re-call of initialise_varia
1786      after cost_final call which should not be there!
1787    checkpoint52j_pre
1788    
1789    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1790      error messages
1791    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1792    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1793      debug output
1794    o modfied mdsio_writefield.F to handle non-global files under exch2
1795    o update AIM Cubed-Sphere exp (aim.5l_cs):
1796      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1797    o update AIM Equatorial Channel exp:
1798      use standard aim_v23 pkg and change the SST fields to be more realistic.
1799    o globalFile now works with exch2
1800    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1801      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1802    o limit timeave output for hi-res integrations
1803    
1804    checkpoint52i_post
1805    o removed CPP_EEOPTIONS.h from verification/*/code
1806    o updated the tiling for global_ocean_pressure
1807    checkpoint52i_pre
1808    
1809    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1810      the old pkg/aim).
1811    
1812    checkpoint52h_pre
1813    o shortened offending lines in exch2_send_rx?.template
1814    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1815    o genmake2: add build & execute test for NetCDF code
1816    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1817      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1818    o added useSingleCPUIO flag to monitor.F and mon_out.F
1819    o added temporary hack for sea-ice dynamics on the cube:
1820      metric terms are ignored and it is assumed that
1821      there is no sea-ice on cube faces 1, 2, 4, and 5.
1822    
1823    checkpoint52f_post
1824    o added exch2 cube routines to pkg/exch2
1825    o modified hs94.cs-32x32x5 to use it
1826    o added new grid files to hs94.cs-32x32x5
1827    checkpoint52f_pre
1828    
1829    checkpoint52e_post
1830    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1831      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1832    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1833      to work with implicit vertical advection and AB ;
1834    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1835    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1836     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1837    checkpoint52e_pre
1838    
1839    o fix bug in impldiff when Nr=1 or Nr=2.
1840    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1841    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1842    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1843      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1844    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1845    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1846    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1847    
1848    checkpoint52d_post
1849    o re-tiled many expts to allow comparison in multi-processor mode
1850      - updated output accordingly
1851      - changed hs94.128x64x5 to use intial T from file rather than use the
1852        random number generator
1853    o add infrastructure in model routines for fizhi and gridalt packages
1854    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1855    o changes to permit hi-res, cubed-sphere, configuration
1856      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1857      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1858      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1859        of surface winds for the cube
1860      (A verification experiment, based on global_ocean.cs32x15, but with
1861       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1862       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1863       complete with example surface forcing files and matlab scripts to look
1864       at the output and compare it with that of global_ocean.cs32x15.)
1865    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1866       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1867       to conform to the common rule.
1868    o check-in the first version of the coupler + interfaces for multi-components
1869       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1870       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1871       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1872       - ocean and atmos. share the same horizontal grid (no interpolation).
1873       - exchanges between component and coupler is done in forward_step
1874    o new verification experiment, cpl_aim+ocn:
1875       coupled ocean - AIM atmosphere on cs32 grid.
1876    
1877    checkpoint52d_pre
1878    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1879    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1880    
1881    checkpoint52c_post
1882    o Fixing OPTIONS files for use of exf:
1883      - ALLOW_ECCO not needed
1884      - ECCO_CPPOPTIONS.h should not be included from
1885        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1886        as has been the case in the past
1887      - All cal/exf related options are currently set in
1888        single header file. Should remain so until we
1889        agree on a consistent new policy.
1890    o Removed all CPP options for cal package.
1891      cal has no more CPP options.
1892    o modified STOREs in GAD_ADVECTION
1893    o corrected key comp. for passkey
1894    
1895    checkpoint52b_post
1896    o new version: "thsice" of thermodynamic sea-ice pkg:
1897     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1898     - modify fluxes but do not change theta directly;
1899     - light cleaning of bulk_force pkg (still needed with thsice).
1900     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1901       + output_thsice.txt to test thsice & bulk_force pkgs.
1902    o put back grid & coriolis monitor output.
1903    checkpoint52b_pre
1904    
1905    o call "do_the_model_io" at the beginning (=> dump initial state)
1906    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1907    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1908      (need info on NUMBER_OF_PTRACERS)
1909    o missing PTRACERS headers in some routines
1910    o default tamc.h in pkg/autodiff supposed to crash
1911      to ensure proper customization
1912    
1913    checkpoint52a_post
1914    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1915      - moved surfaceTendencyTice from pkg/seaice to main code
1916      - subroutine FREEZE_SURFACE now limits only surface temperature
1917        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1918        => new output.txt for global_ocean.cs32x15 & global_with_exf
1919      - keep the old version of FREEZE for backward compatibility;
1920        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1921      - corresponding modifs for TAF directives
1922    o added surface flux output variables to TIMEAVE_STATVARS
1923    o time-averaged output for pkg/ptracers
1924    o fix problem with ECCO-related divided adjoint
1925      snapshot file was missing some ad-variables,
1926      but no warning issued by TAF
1927    
1928    checkpoint52a_pre
1929    o some bug fixes for #undef REAL4_IS_SLOW
1930    
1931    checkpoint52 = ecco_c52_e35
1932    o after testing adjoints of checkpoint51u_post
1933    
1934    checkpoint51u_post
1935    o this is the post-merge tag of the ecco-branch
1936      (needs another clean checkout and re-testing)
1937    o various natl_box_adjoint configs and results
1938      but no input fields
1939    o obcs adjoint not yet merged!
1940    o adding ECCO global 1x1 and 2x2 degree configs
1941    o updated/extended some store directives for seaice
1942    o pkg/ecco now containes ecco-specific part of cost function
1943    o top level routines the_main_loop, forward_step
1944      supersede those in model/src/
1945      previous input data.cost now in data.ecco
1946      (new namelist ecco_cost_nml)
1947    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1948    
1949    checkpoint51t_post
1950    o this is the pre-merge tag of the ecco-branch
1951    
1952    checkpoint51s_post
1953    o cleanup: removed various obsolete #define-s
1954    o pkg/grdchk
1955      - renamed 'ph-grd 3' to 'grad-res'
1956      - merged from ecco-branch
1957        (remaining bug fixes for obcs gradient checks)
1958      - additional high-precision output for testreport
1959        (grep for 'precision_grdchk_result')
1960    
1961    checkpoint51r_post
1962    o cleaned up or removed CPP_OPTIONS.h files
1963    o updated results for some of the tests to reflect the new
1964      optfiles (-ieee: -O0 instead of -O3)
1965    
1966    checkpoint51q_post
1967    o cd_code:
1968      - moved cd_scheme.F -> cd_code_scheme.F
1969      - separate read_checkpoint from cd_code_ini_vars.F
1970      - separated cd_code part from write_checkpoint
1971      - updated AD_SOURCE, generated .flow
1972      - added CD_CODE_VARS.h to the_main_loop
1973      - Moving cd_code specific store dir.s to pkg/cd_code
1974    o ctrl package totally restructured
1975      - pack/unpack now optional and decoupled from
1976        xx_/adxx_ I/O
1977      - ctrl_pack/unpack cleaned
1978        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1979      - confined inclusion of AD_CONFIG.h to where necessary.
1980    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1981    
1982    checkpoint51p_post
1983    o create initial cd_code package
1984      - WARNING: the initialization of fields within packages
1985        is broken because INI_FIELDS (where READ_CHECKPOINT is
1986        called) is called *before* PACKAGES_INIT_VARIABLES.
1987        This seems to be backwards since
1988        1) its important to initially zero the entire field including
1989           the "halo" region
1990        2) zeroing needs to be done *before* reading pickup info
1991           and the pickup call might or might not happen in any
1992           particular run
1993      - this needs an overhaul for R2
1994    o cleanup verification/*/code/GMREDI_OPTIONS.h
1995    o cleanup testreport
1996    
1997    checkpoint51o_post
1998    o bringing AD-related verif's up to date with genmake2
1999      - carbon/
2000      - global_ocean.90x40x15/
2001      - hs.94.1x64x5/
2002      - (front_relax/ )
2003    o (more) consistent directory structure for AD-related verif.'s
2004    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2005    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2006    o bug fix in find_alpha.F for MDJWF:
2007      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2008        change rho -> rho-rhoConst
2009      - replace call find_rho to find_rhonum
2010    o initialisation of rFlx extended to full array (required by TAF)
2011      and shifted to thermodynamics
2012    o removed PTRACERS.h in ptracers routine
2013    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2014    o Correcting initialisations for fVerU, fVerV.
2015    o helping TAF to recognize dependency on kUp for
2016      fVerU, fVerV
2017    o Replacing delZ by delR in pkg/ctrl/
2018    checkpoint51o_pre
2019    
2020    o undid all of cp51 pending some cleanups and discussion
2021    o added the [#include "AD_CONFIG.h"] statement to all files that need
2022       it for adjoint/tl #defines
2023     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2024     o removed tools/genmake since it no longer works
2025    
2026    checkpoint51n_post
2027    o modifications to make FREEZE flux visible to pkg/kpp
2028      - moved surfaceTendencyTice from pkg/seaice to main code
2029      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2030      - subroutine FREEZE now limits only surface temperature
2031        (this means new output.txt for global_ocean.90x40x15,
2032         global_ocean.cs32x15, and global_with_exf)
2033    o added surface flux output variables to TIMEAVE_STATVARS
2034    
2035    checkpoint51n_pre
2036    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2037    o added [#include "AD_CONFIG.h"] to all files that use the following
2038      defines:
2039      - ALLOW_ADJOINT_RUN
2040      - ALLOW_TANGENTLINEAR_RUN
2041      - ALLOW_ECCO_OPTIMIZATION
2042    
2043    checkpoint51m_post
2044    o incorporating changes to get TAMC/TAF working in genmake2
2045      - added new TAMC/TAF targets to the Makefile
2046      - various cleanups related to package handling
2047      - these changes should have no impact on the forward model
2048    
2049    checkpoint51l_post
2050    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2051     - faster algorithm for cal_addtime.F
2052     - higher precision arithmetic, where needed
2053     - pkg/exf *startdate variables changed from calendar date to
2054       model integration time
2055    
2056    checkpoint51l_pre
2057    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2058    o enable to apply restoring on S & T only in a latitude band.
2059    o update output (external_forcing_surf modif. change truncation errors)
2060       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2061    
2062    checkpoint51k_post
2063    o change default to: useNHMTerms=.FALSE.
2064     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2065       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2066     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2067        exp1, ideal_2D_oce
2068     - change data file of oceanic exp (leave the results unchanged for now)
2069       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2070    o set gravitySign automatically according to the vertical coordinate used
2071      (and change sign: back to "logical" value: +1 when R increases downward)
2072    o added an include barrier to the default CPP_OPTIONS.h and
2073      removed the #include "PACKAGES_CONFIG.h" from it
2074    o fix a bug in mom_fluxform (from chk51j_post)
2075    
2076    checkpoint51j_post
2077    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2078    o adjusted some flow directives (dynamics, thermodynamics)
2079    o added cubed-sphere case to test cost function
2080    o heckpoint_lev?_directives.h now include
2081      pkg-specific directives, whenever those are enabled.
2082    o Moving pkg-specific flow directives to corresponding pkg
2083      Moving pkg-specific differentiation list to corresponding pkg
2084      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2085      ---> conventions are
2086           - pkg_ad.flow
2087           - pkg_ad_diff.list
2088           - pkg_ad_check_lev?_dir.h
2089    
2090    checkpoint51i_post
2091    o merge of the branch-genmake2
2092      - knowingly breaks the older genmake
2093      - automatic generation of all ALLOW_${PKG_NAME} defines
2094      - new testreport supersedes older testscript
2095    o large number of package inclusion and header cleanups
2096    checkpoint51i_pre
2097    
2098    o new output for adjoin of global ocean vector invariant
2099    o fix for checkpoint of thermodynamic seaice and bulk_force
2100    o Steph gchem various cleanups
2101    
2102    checkpoint 51h_pre
2103    o fixed some single quotes
2104    o modify gchem pkg to be more versatile
2105    o modifications to clean up dic pkg
2106    o add pkg/cfc
2107    
2108    checkpoint51g_post
2109    o provide links for ARPACK and ADM*TLM
2110    o start removing verification/vero/
2111    o update AD-related stuff
2112      (in particular some IF-statements in model/src/ routines)
2113    o adding to verification/global_ocean.90x40x15/ adjoint of
2114      vector invariant setup
2115    
2116    checkpoint51f_post
2117    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2118    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2119      of tracer Green's fucntions for ocean inversion project.
2120    
2121    checkpoint51f_pre
2122    o Added on-the-fly spatial interpolation capability
2123        "USE_EXF_INTERPOLATION" to pkg/exf.
2124      - This is a temporary Cartesian-grid hack until
2125        the super-duper ESMF coupler becomes available.
2126      - See verification/global_with_exf/README for usage example.
2127      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2128        flags and modified pkg/seaice accordingly.
2129    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2130        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2131        non-local transport term.
2132    
2133    checkpoint51e_post
2134    o pkg/mom_vecinv:
2135      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2136      - add time-ave diagnostic of vorticity advection.
2137    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2138    o atmospheric geopotential: - include water vapor effect;
2139                                - use p^kappa in p* scaling.
2140    o land pkg: read initial state from files.
2141    o AIM : add stratospheric drag in the upper level
2142    
2143    checkpoint51d_post
2144    o change function ILNBLNK (=> last non-blank char.) to return zero
2145      (instead of the string length) when the string. char is empty
2146    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2147    o modif's to restore TAMC compatibility
2148      - avoid "_d" constructs in PARAMETER declarations
2149      - avoid interrupting lines by comment lines
2150    o Use cluster local disks for purely local I/O
2151      vs. globally visible disks needed for ctrl stuff
2152      (merged from ecco-branch)
2153      - new active_file_loc... and mdsio_..._loc routines
2154      - affected packages: autodiff, ctrl, grdchk, mdsio
2155    
2156    checkpoint51c_post
2157    o introducing integer flag debugLevel
2158      - debLevZero: suppress all output
2159      - debLevA: standard
2160      - debLevB: equivalent to current debugMode=.TRUE.
2161    o introducing pathname variable mdsioLocalDir for mdsio
2162      that can be specified at runtime
2163      (relevant for cluster I/O to local disk)
2164    `
2165    >>>checkpoint51b_post
2166    adjoint of ptracers
2167    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2168    o extended state in checkpoint_lev?, etc.
2169    o alternative ctrl/cost with tr1 or ptracer
2170    o new comlev1_bibj_ptracers
2171    o new ptracers.flow
2172    o made ptracers_forcing same as external_forcing_s
2173    o added verification for adjoint with ptracers
2174      - adm. grdchk fail so far
2175      - tlm. grdchk OK
2176      - checked tapelev/comlev recomputations: OK
2177    <<<checkpoint51b_pre
2178    
2179    checkpoint51a_post
2180    o added code for biogeochemistry package
2181      - new pkgs: dic, gchem
2182      - new subroutine in ptracers
2183    o modify code for biogeo packages
2184      - in model/src and pkg/ptracers
2185    
2186    checkpoint51
2187    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2188      - autodiff, ctrl, exf, grdchk, seaice
2189      kept separate packages
2190      - cost, ecco, obcs
2191    o updating verification/internal_wave, verification/lab_sea
2192      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2193    
2194    checkpoint50i_post
2195    o Preparing next differentiable checkpoint and sync
2196      of MAIN vs. ecco-branch
2197      - 1st step: this one is differentiable
2198      - 2nd step: next(! not this) checkpoint will have updated packages
2199                  from ecco-branch)
2200    
2201    checkpoint50h_post
2202    o new package "land": provide surface BC for AIM.
2203    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2204    o AIM: use true log-P extrapolation for near surface temp (= as in
2205        F.Molteni paper) ; update aim.5l_cs output.
2206    o New variable in PARM03 for more flexible pickups
2207    o somewhat cleaned package initialisation sequence for
2208      ctrl/ cost/ ecco/ in packages_... routines
2209    
2210    checkpoint50g_post
2211    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2212      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2213      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2214        made the default because of faster convergence than ADI
2215    
2216    checkpoint50f_post
2217    o exf totally restructured
2218      - replaced all exf_set_ routines by one generic exf_set_gen.F
2219        and made sure it's still differentiable
2220      - split exf_getffields.F into new exf_bulkformulae.F
2221      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2222      - updated adjoint/makefile and relevant verif. accordingly
2223    
2224    checkpoint50f_pre
2225     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2226          + change Evap over land. (update aim.5l_cs output)
2227     o added missing .cvsignores and made uniform across expts
2228     o changed configuration of tidal_basin_2d expt
2229     o added pkg/debug functions for tracing code in fatal crashes
2230     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2231     o new fn in pkg/monitor to stop model if solution grows too big
2232     o removed lots of single quotes from comments
2233    
2234    checkpoint50e_post
2235    o make KPP work with PTRACERS
2236     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2237       nearly a copy of kpp_transport_s
2238     - there is no analogue to SurfaceTendencyS, so I have to use
2239       gPtr(of the surface layer) instead
2240    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2241    checkpoint50e_pre
2242    
2243    checkpoint50d_post
2244    o change kpp output from multiple-record state files to single-record state
2245      files analogous to write_state.F
2246    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2247      analogous to the cg2d-related output.
2248    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2249      so that writing to internal file fn (with length 512) fails.
2250    checkpoint50d_pre
2251    
2252    checkpoint50c_post
2253    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2254    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2255    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2256    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2257    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2258    
2259    checkpoint50c_pre
2260    Merging from release1_p13:
2261    o bug fix for pkg/seaice dynamic solver
2262    o Added SEAICE_initialHEFF to pkg/seaice
2263    
2264    checkpoint50b_post
2265    o store u*,v* in gU,V instead of in guNm1,gvNm1
2266    o in order to put the momForcing out of the Adams-Bashforth:
2267      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2268      to timestep.F
2269    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2270    o re-generate output for highly sensitive test-exp:
2271       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2272    
2273    checkpoint50b_pre
2274    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2275    o corrected CPP option mismatch in exf_Bulk... functions for case
2276      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2277    
2278    checkpoint50a_post
2279    o Bug fix for merging between c50 and KPP.
2280      ikey was passed from thermodynamics to kpp_calc via
2281      common block rather than being recomputed in kpp_calc,
2282      in contradiction with new key itdkey.
2283      New key ikppkey created, and tamc.h headers updated.
2284    
2285    checkpoint50
2286    - 2nd step of merge with ecco-branch:
2287      merge changes in ecco-branch back into main trunk
2288    - bug fix in find_alpha
2289    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2290    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2291    - merged some sliced AD support routines
2292    
2293    checkpoint49
2294    merged from ecco-branch:
2295    o exf:
2296      - Enable initialisation of forcing fields to constant
2297        (runtime) values.
2298      - in exf_getffields.F
2299        Reduce i-/j-loop to interior domain, discarding overlaps.
2300        That also fixes wrong TAF-key computations for key_1, key_2
2301        with bulf formulae.
2302      - exf_init.F modify #ifdef for exf_init_evap
2303      - exf_getffieldrec.F, ctrl_getrec.F
2304        The following INT-usages are not safe:
2305          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2306          fldcount = int(fldsecs/fldperiod) + 1
2307        and were modified.
2308    o autodiff: checkpoint_lev...
2309      - updated storing for bulk formulae (some arrays were missing)
2310      - added state for seaice package
2311      - synchronized with main branch
2312    o DIVA:
2313      Modif.s in
2314      - the_main_loop.F
2315      - the_model_main.F
2316      and added cost_final_restore.F cost_final_store.F
2317      o With these changes, it is possible to fully separate
2318        the first forward run to compute the cost function (mdthe_main_loop)
2319        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2320        into separate model executions.
2321        This enables better tuning of DIVA to given queue sizes.
2322      o Loss of cost function value in consecutive DIVA runs is
2323        fixed by storing to 'costfinal' file.
2324      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2325        beginning/end of adjoint integration is accounted for.
2326      The current changes apply to TAF-1.4.26.
2327      TAF has one remaining bug, requiring one manual change
2328      (see MITgcm manual).
2329    o cal: synchronized between MAIN and ecco-branch
2330    
2331    checkpoint48i_post
2332    o Changes to restore differentiability of code w.r.t. previous tag
2333      (mostly adding new routines to make list and replacing
2334      pressure by totPhiHyd).
2335    o Updated and merged grdchk package
2336      - has both ADM and TLM checks
2337      - works for single- and multi-proc.
2338      - output cleaned
2339      - worked successfully for parallel DIVA
2340    o genmake:
2341      - Adding -platform=SP4
2342      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2343    o Modif. for DIVA:
2344      ctrl_unpack should not be called in intermediate DIVA interval.
2345      (similar thing would apply for active files such as
2346      tbar, sbar, psbar, which should not be reinitialised;
2347      only relevant for ecco-branch)
2348    
2349    checkpoint48h_post
2350    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2351    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2352    o Added SEAICE_initialHEFF to pkg/seaice
2353    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2354    
2355    checkpoint48g_post
2356    --- EOS:
2357    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2358      store total Potential in totPhyHyd for diagnostics & EOS.
2359    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2360    --- Pressure/geopotential gradient:
2361    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2362    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2363      ( changes results of global_ocean_pressure )
2364    o NLFS + z-coord.: add eta*Rho' contribution.
2365    o accurate phiHyd when using interface-W at the middle between 2 centers
2366     ( changes results of ideal_2D_oce )
2367    o includes r* 2nd term in potential gradient.
2368    
2369    checkpoint48f_post
2370    Merging from release1_p12:
2371    o Modifications for using pkg/exf with pkg/seaice
2372      - improved description of the various forcing configurations
2373      - added basic radiation bulk formulae to pkg/exf
2374      - units/sign fix for evap computation in exf_getffields.F
2375      - updated verification/global_with_exf/results/output.txt
2376    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2377      (SBO) core products, including oceanic mass, center-of-mass,
2378      angular, and bottom pressure (see pkg/sbo/README.sbo).
2379    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2380      to avoid negative values in shallow regions.
2381      - updated verification/natl_box/results/output.txt
2382      - updated verification/lab_sea/results/output.txt
2383    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2384    o Added useSingleCpuIO option (see PARAMS.h).
2385    o Updated useSingleCpuIO option in mdsio_writefield.F to
2386      work with multi-field files, e.g., for single-file pickup.
2387    o pkg/seaice:
2388      - bug fix in growth.F: QNET for no shortwave case
2389      - added HeffFile for specifying initial sea-ice thickness
2390      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2391    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2392      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2393    o pkg/seaice:
2394      - adjoint-friendly modifications
2395      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2396    
2397    checkpoint48e_post
2398    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2399    o dynamics: change definition of computational domain & adapt mom_fluxform
2400      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2401    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2402        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2403        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2404        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2405        inverted_barometer solid-body.cs-32x32x1
2406      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2407    
2408    checkpoint48d_post
2409    o in preparation for r*:
2410     a) use pre-computed gradient of hydrostatic potential:
2411        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2412     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2413        => affects results of glob_oce_pressure (different truncation error)  
2414      update output.txt of ideal_2D_oce & global_ocean_pressure
2415    
2416    checkpoint48d_pre
2417    o in preparation for r*:
2418      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2419      pass the 2 comp. of the grad. as arguments to momentum S/R.
2420      but for the moment, only used if it does not change the results.
2421    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2422    
2423    checkpoint48c_post
2424    Modifications in treatment of initial flux forcing controls
2425    to avoid extra storing of flux fields.
2426    
2427    checkpoint48c_pre
2428    o Added tidal_basin_2d experiment (currently 1D!)
2429    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2430    
2431    checkpoint48b_post
2432    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2433     (modification to pressure gradient not yet implemented)
2434    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2435      (for U & V) that are used for vertical advection of momentum.
2436    
2437    checkpoint48a_post
2438    o In preparation for r*, use temp. array to compute vertical transport
2439       in flux-form momentum pkg. => change results of few test-exp.
2440      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2441                        lab_sea, natl_box & plume_on_slope
2442    
2443    checkpoint48
2444    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2445    
2446    checkpoint47j_post
2447    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2448    o moved adexch from forward_step to addummy_in_stepping
2449    o added exch in ctrl_map_...
2450    o aveFreq.=0. at end of cost_final to avoid overwrite in
2451      reverse checkpointing loop
2452    o Yet more changes in gmredi:
2453      * adgmredi_calc_tensor
2454        avoiding all recomputation of gmredi_slope_limit
2455      * adgmredi_x/y/rtransport
2456        added flag for excessive storing to avoid recomp. of
2457        u/v/rtans, dTdx/y/z
2458        -> this is not really necessary and very memory-consuming
2459      * adgmredi_slope_psi:
2460        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2461      * gmredi_slope_limit
2462        re-activated full calculation of taperfct for case 'ac02'
2463    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2464    
2465    checkpoint47i_post
2466    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2467    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2468      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2469    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2470    o gmredi: fix few bugs.
2471    
2472    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2473    This will be a good checkpoint to plug into the ecco-branch.
2474    o few modif.'s to get latest version adjointed
2475      (mainly kick out code in ini_linear_phisurf)
2476    o modif's to run adjoint with exactConserv
2477    o case GM_BOLUS_ADVEC should be cleaned
2478      S/R gmredi_slope_psi should be cleaned
2479    o verification/carbon now has exactConserv=.TRUE.
2480    
2481    checkpoint47g_post
2482    o time-average AIM output: becomes independent from statvars time-average
2483      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2484    o After TAF bug fix:
2485      Tested adjoint of gmredi package.
2486      Tests were done with checkpoint47 rather than with latest
2487      checkpoint47f_post since the latter is broken for the adjoint
2488      verification/carbon/ contains both ADM and TLM gradient checks.
2489    Here they are, before they get changed/lost/stolen.
2490    Mostly modif.'s to fix numerical sensitivities.
2491    Gradient checks OK for
2492    - GM_taper_scheme:
2493      * clipping
2494      * ac02
2495      * linear
2496      * glw91
2497      * dm95
2498      * ldd97
2499    - GMREDI_OPTIONS:
2500      * GM_VISBECK_VARIABLE_K
2501      * GM_NON_UNITY_DIAGONAL
2502      * GM_EXTRA_DIAGONAL
2503      * GM_BOLUS_ADVEC
2504    in conjunction with data.gmredi parameters to be checked in
2505    in a few minutes under verification/carbon/code/
2506    
2507    checkpoint47f_post
2508    Merging from release1_p10:
2509    o modifications for using pkg/exf with pkg/seaice
2510      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2511        and SEAICE_EXTERNAL_FLUXES
2512      - pkg/exf CPP options EXF_READ_EVAP and
2513        EXF_NO_BULK_COMPUTATIONS
2514      - usage examples are Experiments 8 and 9 in
2515        verification/lab_sea/README
2516      - verification/lab_sea default experiment now uses
2517        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2518    
2519    checkpoint47e_post
2520    o created a tag prior to creating a branch
2521    
2522    checkpoint47d_post
2523    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2524      at the bottom boundary had an erroneous half slip boundary condition
2525    o added bottom drag and no slip boundary condition capabilities to
2526      oceanic pressure coordinates code
2527    o added new verification experiment global_ocean_pressure, this experiment is
2528      also described in the tutorial section of the manual
2529    checkpoint47d_pre
2530    
2531    checkpoint47c_post
2532    o Added a verification experiment for a global cubed-sphere ocean run
2533      -  verification/global_ocean.cubed32x32x30
2534      -  uses pkg/therm_seaice and pkg/bulk_forcing
2535    
2536    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2537    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2538      when using P-coordinate; only implemented for atmospheric config.
2539    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2540      NOTES: requires option NONLIN_FRSURF to be "#define".
2541    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2542    
2543    checkpoint47b_post
2544    Merging from release1_p9:
2545    o pkg/seaice
2546      - removed GOTO's and added taf directives
2547      - double precision constants to reduce the g77 (Linux)
2548        to F77 (SGI) differences reported in release1_p8
2549    o tools/genmake
2550      - added SGI options
2551    o verification/testscript
2552      - updated to that of checkpoint47a_post
2553    o verification/global_ocean.90x40x15/input/eedata
2554      - modified for SGI f77 compatibility
2555    o verification/lab_sea
2556      - added description of sea-ice model
2557      - added missing matlab routines
2558      - added test of thermodynamics parallelization
2559    
2560    checkpoint47a_post
2561    o new pkg: aim_v23
2562     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2563       for now, keep the same surface forcing as before.
2564     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2565     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2566     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2567    o add diagnostic of surface correction term in monitor output
2568    
2569    o bulk_force and therm_seaice
2570    - Two packages:  bulk_force (Bulk forcing)
2571      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2572    - Earlier integration from Stephaine Dutkiewicz
2573      and Patrick Heimbach.
2574    - Two ifdef statements for compile time,
2575       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2576    
2577    checkpoint47
2578    differentiable version of checkpoint46n_post
2579    o bug fix in quasihydrostaticterms
2580    o * "clean" adjoint code (in terms of extensive recomputations)
2581        can now be obtained for all GMREDI options (i.e. for
2582        - GM_VISBECK_VARIABLE_K
2583        - GM_NON_UNITY_DIAGONAL
2584        - GM_EXTRA_DIAGONAL
2585        - GM_BOLUS_ADVEC )
2586      * However, wrong gradient check problem remains unsolved.
2587      * New CPP options have been introduced for different
2588        tapering schemes
2589    o external_fields_load now part of differentiation list
2590    o pressure needs multiple storing;
2591      would be nice to have store_pressure at beginning or
2592      end of forward_step, e.g. by having phiHyd global (5-dim.)
2593      (NB: pressure is needed for certain cases in find_rho,
2594      which is also invoked through convective_adjustment).
2595    o recomputations in find_rho for cases
2596     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2597    o #define ATMOSPHERIC_LOADING should be differentiable
2598    o ini_forcing shifted to begining of initialise_varia
2599    o Incorporating QNVS line search routines into MITgcm
2600      (this is separate code, and therefore not under pkg)
2601      lsopt/, optim/
2602    o Updated verification/carbon/
2603      - #define GM_VISBECK_VARIABLE_K
2604      - GM_taper_scheme    = 'ldd97'    
2605    
2606    checkpoint46n_post
2607    Merging from release1_p8:
2608    o verification/natl_box:
2609      updating new external_fields_load routine
2610    o New package: pkg/seaice
2611      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2612      The sea-ice code is based on Hibler (1979-1980).
2613      Two sea-ice dynamic solvers, ADI and LSR, are included.
2614      In addition to computing prognostic sea-ice variables and diagnosing
2615      the forcing/external data fields that drive the ocean model,
2616      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2617      The implied surface heat flux is then stored in variable
2618      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2619      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2620      non-local transport term.  Because this call precedes model
2621      thermodynamics, temperature under sea-ice may not be "exactly" at
2622      the freezing point by the time theta is dumped or time-averaged.
2623      N.B.: fairly large differences in accuracy occur across
2624            different platforms/compilers; comparison between
2625            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2626            generated output gives:
2627       T           S           U           V
2628      C D M    c        m  s        m  s        m  s        m  s
2629      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2630      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2631      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2632    
2633      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2634    o GAD:
2635      - generated new common blocks to account for call of
2636        same gad routines with differing traceridentities
2637        (needed to modify tracerIdentity indices in GAD.h)
2638      - generated separate common blocks for case useCubedSphereExchange
2639        (Department of Futurology)
2640      - parameter lists to gmredi_?transport: added tracerIdentity
2641      - added new key indices to tamc.h
2642    o external_fields_load:
2643      - added this routine to TAF list
2644      - needed to make some common blocks global and additional storing
2645        along the same lines as exf package (checkpoint_lev?_directives.h)
2646    o exf:
2647      updated external forcing package
2648      - bug fixes carried over from ecco-branch
2649        (missing OBCS_OPTIONS.h in two routines)
2650      - enable easy to use "no forcing".
2651      - added exf I/O for atmospheric loading
2652      - added exf I/O for runoff data
2653      - transfered scaling between exf <-> MITgcm to exf namelist
2654    o Adding new verification experiment global_with_exf.
2655      This verification experiment is almost identical to the
2656      global_ocean.90x40x15 experiment, except that it uses
2657      the exf (and cal) package instead of the
2658      external_fields_load routine (cf README file).
2659    
2660    checkpoint46m_post
2661    o modified testscript to return -- when there are no lines of "%MON" output
2662    o added new flag "quasiHydrostatic" for QH mode
2663      and new routine quasihydrostaticterms()
2664    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2665      New routine: mom_u_coriolis_nh()
2666    o fixed sign of non-hydrostatic metric terms in u and v equations.
2667      Depend on correct sign of gravitySign.
2668    o added work.pc* to .cvsignore in aim directories using ifc
2669    o introduced flag for controllin non-hydrostatic metric terms
2670    o removed gravitySign from PARM04
2671    o switched to g77/ifc from pgf77 in aim experiments
2672    
2673    checkpoint46l_post
2674    o made convective adjustment work with pressure coordinates:
2675     - changed the direction of k-loop in convective_adjustment.F for the
2676       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2677     - adjusted the reference pressure k-index in convective_adjustment.F
2678     - adjusted the convection condition in convect.F (in analogy to
2679       calc_ivdc.F)
2680     - convective_adjustment no longer computes anything on the halos
2681     - removed the warnings about negative salinity from find_rho.F and
2682       find_alpha.F; instead the new routine look_for_neg_salinity, called
2683       at the beginning of find_rho, find_alpha, and find_beta, does a
2684       check of the entire slice, if CPP-option
2685       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2686    checkpoint46l_pre
2687    
2688    checkpoint46k_post
2689    o fixed the verification/global_ocean.90x40x15 experiment:
2690     - new bathymetry (the world according to A., JMC, and M.)
2691     - new initial fields and forcing fields (*.bin files)
2692     - new POLY3.COEFFS (for the next release one should switch to a full
2693       equation of state: JMD95P or MDJWF)
2694     - fixed several errors and redundancies in the data file
2695     - experiment uses looped cells
2696     - added matlab directory with diagnostic scripts for plotting of output
2697    
2698    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2699     - read AIM physics parameters from a file (data.aimphys)
2700     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2701    
2702    checkpoint46j_post
2703    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2704    o move wVel computation at the end of the time step, in S/R integr_continuity
2705    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2706    o update timeave pkg for wVel diagnostic.
2707    checkpoint46j_pre
2708    
2709    checkpoint46i_post
2710    o Clean up AIM package (and keep the results unchanged):
2711      include CPP_OPTION and use IMPLICT NONE in all routines ;
2712      declare all the variables _RL ; use _d 0 for all numerical constants.
2713      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2714    
2715    checkpoint46h_post
2716    o cleaned up the use of rhoNil and rhoConst.
2717      - rhoNil should only appear in the LINEAR equation of state, everywhere
2718        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2719        and the dynamical equations are all divided by rhoConst
2720    o introduced new parameter rhoConstFresh, a reference density of fresh
2721      water, to remove the fresh water flux's dependence on rhoNil. The default
2722      value is 999.8 kg/m^3
2723    o cleanup up external_forcing.F and external_forcing_surf.F
2724      - can now be used by both OCEANIC and OCEANICP
2725    checkpoint46h_pre
2726    
2727     Added code to convert surface volume flux (fresh water) into
2728     a mass flux when using P coordinates in the ocean (OCEANICP).
2729     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2730    
2731    checkpoint46g_post
2732    o Include a new diagnostic variable phiHydLow for the ocean model
2733      - in z-coordinates, it is the bottom pressure anomaly
2734      - in p-coordinates, it is the sea surface elevation
2735      - in both cases, these variable have global drift, reflecting the mass
2736        drift in z-coordinates and the volume drift in p-coordinates
2737      - included time averaging for phiHydLow, be aware of the drift!
2738    o depth-dependent computation of Bo_surf for pressure coordinates
2739      in the ocean (buoyancyRelation='OCEANICP')
2740      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2741        Theta, Salinity, and Pressure in the parameter list. This routine is
2742        presently contained in find_rho.F. This routine does not give the
2743        correct density for 'POLY3', which would be a z-dependent reference
2744        density.
2745    o cleaned up find_rho
2746      - removed obsolete 'eqn' from the parameter list.
2747    o added two new verification experiments: gop and goz
2748      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2749    checkpoint46g_pre
2750    
2751    checkpoint46f_post
2752    o Enable tangent linear (forward mode) gradient checks:
2753      - extended active file handling to g_... files
2754      - added TANGENT_SIMULATION to theSimulationMode
2755      - extended grdchk package accordingly
2756    o added tangent linear setup in verification/carbon/code_ftl
2757    o added adjoint setup in verification/front_relax/code_ad
2758    
2759    checkpoint46e_post
2760    o Added new equation of state -> MDJWF
2761      - EOS of McDougall et al., 2002, JAOT, submitted
2762      - caveat: the equation of state is only valid for a smaller (more
2763        realistic?) range of values than JMD95P/Z and UNESCO
2764      - added masks to the calculation of pressure in store_pressure
2765      - added more check values for density in check_eos (ini_eos.F), some of
2766        the old check values are out of the range of the MDJWF-eos, so don't
2767        expect perfect matches for those
2768    checkpoint46e_pre
2769    
2770    checkpoint46d_post
2771    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2772      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2773      case of pressure coordinates. eosType='JMD95Z' in
2774      combination with buoyancyRelation='OCEANICP' now causes an error.
2775    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2776      in find_alpha/beta.
2777    checkpoint46d_pre
2778    
2779    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2780      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2781    
2782    checkpoint46c_post
2783    o Changes necessary for ocean in p-coordinates
2784     -  Added new buoyancy relation = 'OCEANICP'
2785     -  Added new parameters = gravitySign (this used to be contained inside
2786        the factor dRdZ which I added when we first switched to R coordinates).
2787     X GM/Redi is not compatible (yet)
2788     X bottom drag and no-slip need to be debugged.
2789    checkpoint46c_pre
2790    
2791    checkpoint46b_post
2792    o Added new equation of state -> JMD95Z and JMD95P
2793      - EOS of Jackett and McDougall, 1995, JAOT
2794      - moved all EOS parameters into EOS.h
2795      - new routines ini_eos.F, store_pressure.F
2796    o Added UNESCO EOS, but not recommended because it requires
2797      in-situ temperature (see JMD95)
2798    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2799      unesco.f to be used with POLY3
2800    checkpoint46b_pre
2801    
2802    checkpoint46a_post
2803    o Added (atmospheric) pressure loading
2804      - new field in FFIELDS.h, etc...
2805      - new cpp flag ATMOSPHERIC_LOADING
2806    o Changed hFacC to _hFacC in calc_phi_hyd.F
2807    o Added SHORTWAVE_HEATING to some files for consistency
2808    checkpoint46a_pre
2809    
2810    checkpoint46
2811    further merges from release1_p5
2812    o new ctrl package
2813      - adopted from ECCO environment to enable optimization
2814      - added Eliassen Palm fluxes to controls
2815    o added Eliassen Palm flux controls to gradient check package
2816    o cost package
2817      - Compatible with new ctrl package
2818      - added Eliassen Palm cost hooks
2819      - modif's of existing cost functions
2820    o Adjoint-related bug fixes in kpp:
2821      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2822      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2823    o autodiff package
2824      - flow directives:
2825        + new for S/R do_the_model_io
2826        + enhanced for S/R checkpoint
2827        + new gmredi.flow
2828      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2829        disable adcommon.h/g_common.h by default.
2830      - fixed problem for adjoint of global_max
2831    o modified verification/carbon/
2832    o New setup for adjoint of global_ocean
2833    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2834    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2835    o incorporated hooks for sponge layer code (external_forcing.F)
2836    
2837    checkpoint45d_post
2838    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2839    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2840      (affects plume_on_slope "cg2d" output)
2841    o add new parameter deltaTfreesurf for free-surface time stepping
2842    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2843    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2844    o change phiMin in exp1 (to agree with documentation)
2845    o add new flags:
2846     - T,S forcing inside/outside Adams-Bashforth
2847     - turn off temp,salt advection and/or forcing
2848     - for each tracer, define internal flag for multiDimAdvection & A-B
2849    o monitor: change definition of KE to check conservation of Energy
2850    
2851    checkpoint45c_post
2852    o Removed f90 comments ("!")
2853    o Modified initialisations to enable exf package for MITgcm
2854      (without invoking ECCO_PACKAGE).
2855    o modifications to gradient check package (Martin Losch)
2856      - enable centered differences
2857      - modified format of standard output
2858    
2859    checkpoint45b_post
2860    o cleaned exchange calls in cg2d
2861    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2862    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2863      to configure barotropic setup (Martin Losch)
2864    o moved some initialisations within bi,bj loop in dynamics
2865      (TAF flow dependency)
2866    o in initialise_varia, moved call packages_init_variables
2867      before convective_adjustment_init
2868      (corresponding adjustment of TAF tape initialisation).
2869    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2870    
2871    checkpoint45a_post
2872    o compute Rho over the whole domain (extend iMin,jMin indices)
2873    o specific exchange for X-slice domain (case Ny=1)
2874    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2875    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2876    
2877    checkpoint44h_post = checkpoint45
2878    o Fix to restore differentiability:
2879      place at which packages_init_variables is called in
2880      initialise_varia is crucial for reverse control flow.
2881    o modifications in GMRedi to enable stable adjoint
2882      (corresponding modif's in thermodynamics, dynamics)
2883    o added missing hook for sponge layer code in external_forcing
2884    o modified test cost functions
2885    o storing in gad_advection (plus removal of write(0,*)!
2886    o missing headers TR1.h added in convective_adjustment routines
2887    o errorMessageUnit set non-equal zero in eeboot
2888      (conflict on some platforms, e.g. IBM SP3)
2889    o modified carbon verif.
2890    
2891    checkpoint44h_pre
2892    o vertical grid option: allow to put the Interface at the middle between
2893      2 cell-centers ; replace delZ in pkg/kpp by drF.
2894    o GM Advective form: Tracers are advected using the residual transport (=
2895      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2896    
2897    checkpoint44g_post
2898    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2899      results) ; ifdef missing in thermodynamics.F
2900    
2901    checkpoint44f_pre,checkpoint44f_post
2902    o added PTRACERS package
2903      This allows an arbitrary number of passive tracers to be integrated
2904      forward simultaneously with the dynamicaly model.
2905      + Implemented so far:
2906        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2907        - I/O and checkpointing
2908        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2909      + Not implemented so far:
2910        - KPP
2911        - OBCS
2912      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2913        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2914        line in data.pkg.
2915      + This package is disabled by default since it increases storage.
2916    
2917    
2918    o testscript: added -cleanup option
2919    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2920                 b) enable to filter 2D fields.
2921    
2922    checkpoint44e_pre,post
2923    o re-wrote convective adjustment to use pre-calculated weights
2924      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2925      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2926      Original calls to convect() still in place.
2927    
2928    chkpt44d_pre,post
2929    o added missing EXCLUDE_MONITOR flags
2930    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2931      (incompatible typ in MIN/MAX expressions caused problems
2932      on IBM SP3)
2933    o in genmake added variable MAKEDEPEND
2934      plus resetting for case SunOS
2935    o added timer_stats.c routine for IBM SP3
2936    o removed variables in dynamics
2937    !!! I forgot to create tag chkpt44d_pre !!!
2938    !!! But chkpt44d_pre = chkpt44c_post    !!!
2939    
2940    o real fresh water flux implemented with non-linear free-surface.
2941    
2942    chkpt44c_pre,post
2943    o few fix (mask in shap_s2, EmPmR in external_field_load,
2944      USE_NATURAL_BCS in solve_for_P);
2945    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2946    
2947    checkpoint44b_pre/_post
2948    o merge of relevant stuff from the ecco-branch:
2949      - genmake: removed $S64 overwrite for case SunOS
2950      - pkg/exf: update and corrections for field swapping and obcs
2951      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2952                  harmonized between ECCO and MITgcm
2953      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2954                      updated checkpointing_lev... lists for obcs
2955      - model/src: minor changes in forward_step, plot_field
2956                   added directive for divided adjoint in the_main_loop
2957      - pkg/mdsio: added mdsio_gl_slice
2958    
2959    o check parameters & config (chkpt44a_pre,post)
2960    o OBC and NonLin_FrSurf.
2961    
2962    checkpoint44
2963    o fix bug in mom_vi_del2uv
2964    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2965    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2966    o update AIM experiments (NCEP input files)
2967    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2968    o added some stuff for AD
2969    
2970    checkpoint43
2971    o added two new advection tests
2972    o added global 4x4 degree ocean test
2973    o added test of H&S94 with free surface on cube
2974    o some final mods for gradient check, adjoint,...
2975    
2976    checkpoint42
2977      Fixed AD-related problems:
2978    o Store directives up-to-date with re-arranged Adams-Bashforth
2979      (mainly thermodynamics.F)
2980    o New store directives for multi-dim. advection schemes
2981      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2982      * new common block and key passkey
2983      (mainly gad_advection.F)
2984    o Modified store directives for split of dynamics/thermodynamics
2985      for the case ALLOW_KPP
2986    o Cleaned argument list for timestep_tracer.F
2987    
2988    checkpoint41
2989    o re-formatted/added comments in prologues of key subroutines
2990      to work with protex
2991    
2992    checkpoint40
2993    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2994    o added FLT (floats) package from Arne along with demo. experiment
2995    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2996      implementation of forward-in-time forcing terms
2997    o more mods for non-linear free-surface including new variable
2998    o modified multi-dim method to work on cube
2999    o bug fix in KPP (from DM)
3000    
3001    checkpoint40pre9
3002    o added DST advection schemes
3003    o fix MPI bug on SGI's
3004    o modifications for non-linear free-surface
3005    o fixed conditionals for fixed flow/passive tracer only mode
3006    o added tension/strain form of stress tensor
3007    o changes to commenting of arguments for TAF/TAMC
3008    o added/updated many matlab scripts
3009    o added multi-dimensional advection method for tracers
3010      
3011    checkpoint40pre8
3012    o new package rw/
3013      Added method for dumping intermediate local arrays:
3014      mdsio_writetile - same as mdsio_writefield except works from inside
3015                        bi,bj loop
3016      mdsio_writelocal - same as mdsio_writetile except works for local
3017                         arrays
3018      write_local_r? - higher-level wrapper for mdsio_writelocal
3019      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3020      Example given at end of mom_vecinv.F that dumps some local arrays.
3021    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3022      control flux-form versus vector invariant code.
3023      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3024      or genmake -DISABLE ...
3025    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3026      (additional storing is now needed for case vecinv;
3027      currently nothing implemented to switch this storing off
3028      in case fluxform is used since no CPP flag available).
3029    
3030    checkpoint40pre7
3031    o bug fix in dynamics.F
3032      calc_viscosity called before k=1,Nr loop.
3033    o added some #ifdef's ALLOW_PASSIVE_TRACER
3034    o cleaned initialisations in ctrl_map_ini
3035      related to TAF
3036    
3037    checkpoint40pre6
3038    o split dynamics into thermodynamics & dynamics
3039    o corresponding split of calc_diffusivity into
3040      calc_diffusivity, calc_viscosity
3041      (kpp_calc_diff, kpp_calc_visc).
3042    o Added diffkr, kapgm to control variables
3043    o bug fix in gmredi_slope_limit for ldd97
3044    
3045    checkpoint40pre5
3046    o proper initialization of Adams-Bashforth time stepping
3047      + uses forward step for very first step of model (iter=0)
3048    o re-generated *all* output since almost all output is modified by this
3049      change (sorry but we've been putting this one off for about 2 years)
3050      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3051        *not* regenerated since they are already out of date and I don't
3052        want to create the impression that they are suddenly working.
3053    o removed KAP stuff for DEC's
3054    o modified/added many .cvsignore files in */code and */input
3055    o added new expt "solid-body.cs-32x32x1"
3056      + this uses an alternative form of ini_curvilinear_grid.F which
3057        is not necessarily any better than the current one...
3058    
3059    checkpoint40pre4
3060    o added re-initialisations of utrans,vtrans,rtrans in
3061      calc_common_factors which are crucial for TAF.
3062    o extended iMin,jMin range for calc_common_factors,
3063      calc_diffusivity
3064    o added option ALLOW_PASSIVE_TRACER
3065    o a few minor updates and fixes
3066    
3067    checkpoint40pre3
3068    o created calc_gtr1.F for gad package
3069    o split the_main_loop and re-introduced forward_step
3070    o some recomputations of nIter0 for TAMC
3071    
3072    checkpoint40pre2
3073    o Updated to latest branch of AJA, JMC
3074    o Added gradient check package
3075    o Added routines for passive tracer handling
3076    o Added carbon sequestration sensitivity experiment
3077    
3078    checkpoint39
3079     o Modifications and fixes to support TAMC
3080       (mainly missing or wrong directives)
3081     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3082       in addummy_in_stepping
3083     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3084     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3085     o Included following packages:
3086       cal: calendar
3087       exf: external forcing
3088       ecco: essential routines to control use of cal, exf
3089             (NB: this is not the full ECCO environment)
3090     o disabled some packages by default in genmake
3091    
3092    checkpoint38
3093     o see notes_c37_adj.txt
3094     o corrected wrong layer index in external_forcing_t
3095     o replaced the_main_loop/forward_step by the_main_loop
3096     o removed forceoutput from write_state
3097       (replaced criteria for initial/final state)
3098     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3099    
3100    checkpoint37
3101     o mdsio.F routine split and packaged in pkg/mdsio
3102       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3103        used unless genmake -disable=mdsio)
3104     o allow a more precise surface-geopotential gradient for the atmosphere
3105       taking into account the change in space of Alpha (=1/rho) at the surface.
3106     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3107       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3108     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3109       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3110       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3111     o Time-Average diagnostics defined as a pseudo package "timeave".
3112     o pickup files : old pickup (before c35) did not work with new code (c35
3113       and after) unless activating 2 commented lines in initialise-varia.
3114     o Non-Hydrostatic pickup file Pb fixed.
3115     o bug with Rigid-lid version (since c35) fixed.  
3116    
3117    checkpoint36
3118     o implement Crank-Nickelson barotropic time-stepping
3119     o recover Time-Average diagnostics
3120     o fix Pb in checkpoint (PR#19)
3121     o AIM become a standard package ; clean unused CPP_kees
3122    
3123    checkpoint35
3124     o subtantial rewrite of dynamics.f
3125     o allows staggered time-stepping
3126     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3127     o added bottom drag (linear + quadratic)
3128    
3129    checkpoint34
3130     o Modified exchange routines for correct reverse simulation.
3131     o Added verification output to comply with bug fix in impldiff.F
3132       as of c33 (exp2, natl_box).
3133     o Corrected store directives in dynamics.F
3134     o Corrected array boundaries in impldiff.F
3135     o Corrected array dimensions in gmredi.
3136       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3137     o Added routine GLOBAL_SUM_INT to global_sum.F
3138     o Added mdsio_gl.F for ECCO purposes.
3139    
3140    checkpoint33
3141     o Fixed bug in lower BC in impldiff.F
3142     o Fixed confusion about units of forcing arrays in FFIELDS.h
3143       namely Fu,Fv,Qnet,Qsw,EmPmR:
3144       - Removed verification/natl_box/code/external_fields_scale.F
3145         (did not differ from that in model/src)
3146       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
3147         (see FFIELDS.h for description)
3148       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
3149         kpp_calc.F and kpp_transport_t.F
3150       - Removed model/src/external_fields_scale.F and calls to it
3151       - verification/natl_box uses flux data with "atmospheric" sign so
3152         a special version of external_fields_load.F is used to
3153         change the data as it's read in. This way, the arrays
3154         have the right units and signs at all times tha a user could
3155         possibly use them.
3156     o Corrected genmake to delete a temporary file during configuration
3157    
3158  checkpoint32  checkpoint32
3159   o Scaling of forcing fields moved from external_forcing.F to   o Scaling of forcing fields moved from external_forcing.F to
3160     external_fields_scale.F, called directly after loading fields.     external_fields_scale.F, called directly after loading fields.

Legend:
Removed from v.1.31  
changed lines
  Added in v.1.807

  ViewVC Help
Powered by ViewVC 1.1.22