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revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC revision 1.814 by jmc, Fri May 11 14:32:32 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/exf:
8      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
9      EXF_INTERPOLATION:
10      - merge global_with_exf/code version of exf_interp_read.F
11        to the main code ;
12      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
13        reading the file ; Important: This options needs to be defined to recover
14        previous code.
15        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
16      - no longer loose real*8 precision along the way when using exf_iprec=64.
17    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
18      - change discretisation of evp-solver in order to avoid another exchange
19        (changes lab_sea) and clean up a little
20      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
21        help the adjoint (this also changes the results slightly)
22      - add a few "_d 0" where they had been missing in seaice_evp.F
23      - cleaning up: remove unused seaice_calc_rhs.F
24    o pkg/exf: some cleaning-up:
25      - change various "constants" into runtime parameters
26      - cleaned-up Large&Yeager04 routine which should eventually
27        replace exf_bulkformulae.F (changed names of S/R and CPP)
28        and merged various ALLOW_ATM_WIND options
29     only used with thsice pkg (in thsice_get_exf.F):
30      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
31        which are used when useStabilityFct_overIce=TRUE (= the default)
32      - change default values of ice & snow emissivity and scale downward LW
33        by ice & snow emissivity.
34    o pkg/thsice:
35     fix few little problems, in thsice_calc_thickn.F:
36      - growth vertically (and not laterally) if iceFrac == iceMaskMax
37      - melt laterally only if hIce < hThinIce (as the comments say)
38      and in thsice_extend.F:
39      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
40      - start to form ice as soon as the minimum ice-volume is reachable.
41     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
42      and cpl_aim+ocn
43    o pkg/kpp
44     - move computation of surface related input fields to KPP into a new
45       subroutine kpp_forcing_surf.F
46     - remove wrong (within bi,bj loops) EXCH calls.
47     - little cleaning (add argument myThid in last position, cvs header ...)
48     - for now, fix conservation problem by exchanging KPPviscAz (may not
49       be the best fix)
50    o pkg/seaice
51     - check for inconsistent evp parameter/cpp-flag combination
52     - remove leftover errIO flat for obsolete name list error handling
53    o OpenAD
54     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
55    
56    checkpoint59a
57    o pkg/seaice: some parameter clarifications and a little bit of clean up
58    o pkg/thsice: rename run-time parameters:
59       himin       -> hIceMin
60       himin0      -> hThinIce
61       hihig       -> hThickIce
62       i0          -> i0swFrac
63       transCoef   -> bMeltCoef
64       frac_energy -> fracMelting
65      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
66       with default values (for now) that do not change the results.
67      remove old version of thsice vars advection in pkg/seaice.
68    o in FFIELDS.h:
69      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
70      - make pLoad & sIceLoad always available (but still only used if
71         ATMOSPHERIC_LOADING is #define).
72    o pkg/kpp: replaced _KPP_RL with _RL
73    o bug fixes for vertical diffusivity computations when both KPP and
74        3D diffusivity arrays are used.
75    o pkg/seaice: fix bug in evp solver, while doing that
76      - change (improve?) discretization of stress computations for both
77        cgrid-lsr and evp solver
78      - add a new routine to compute strain rates
79      - the above changes lab_sea results
80      - add no slip conditions for evp solver (off by default), lsr-version
81        may follow
82      - fix exchange for shear at Z-points (does not change lab_sea)
83      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
84        (to force the user to pick a time step since there is not "safe" way
85        of choosing it)
86      - add principal stress diagnostics
87      - rearrange fields for evp a little to avoid having to call a: too many
88        exchanges and b: exchanges for stress trensor components which we do
89        not have.
90      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
91        of evp, complete rewrite for lsr case (latter is does not yet work
92        in all cases)
93    o pkg/kpp: add code to have mixing in shelf ice caverns
94      - add myThid to all kpp routines (long overdue)
95    
96    checkpoint59
97    o pkg/exf:
98      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
99        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
100      - move exf header files from lower_case.h to UPPER_CASE.h ;
101        add missing cvs Header & Name
102      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
103      - add namelist param. selectStressGridPosition, exf_monFreq
104      - retire many _CLIM routines, and remove data.exf_clim
105        + params moved to data.exf
106        + climsst, climsss now handled by exf_set_gen, i.e.
107          climss?period=0 refers to constant field,
108          climss?period=-12 to monthly forcing
109      - split up namelists in data.exf
110    o pkg/seaice:
111      - remove seaice_exch and seaice_exch_uv
112      - remove superfluous exchange of theta
113      - add myThid to seaice_budget_ocean/ice
114      - add new interface for atmospheric wind forcing (C-grid only)
115        + new routine
116        + two new field (taux, tauy for stress over ice)
117        + removed one global field (DAIRN) for C-grid case only
118    o pkg/thsise
119      - 2nd set of modifs for thsice adjoint in conjunction with exf
120    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
121    
122    checkpoint58y_post
123    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
124      vertical diffusivity, similar to that in MOM4; turned on using
125      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
126      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
127    o Added capability for 3D specification of background vertical diffusion
128      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
129      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
130      "data" file that contains the 3D vertical diffusivity coefficients.
131    o ice dynamics (pkg/seaice) with thsice thermodynamics:
132      - add code within pkg thsice to advect & diffuse sea-ice fields
133      similar to (and will replace) what has been added in  seaice_advdiff.F,
134      but: - conserving Mass, Heat & Salt.
135           - better when using non-linear advection scheme (not yet fully tested)
136           - can also be used in atmospheric set-up (for now, only the diffusion).
137    
138    checkpoint58x_post
139    o IO option for global-file compact format:
140      - add options when generating topology (utils/exch2/matlab-topology-generator)
141      - add I/O capability (pkg/mdsio).
142      - adapt utils/matlab/rdmds.m to read this format.
143      for now long-line format not yet supported by pkg/mdsio (& exch2).
144    o shelfice: add a few diagnostics
145    
146    checkpoint58w_post
147    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
148      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
149      (and replace horiVertRatio in NH code).
150      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
151                         and tutorial_plume_on_slope (sensitive to truncation)
152    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
153      directly to drive seaice model (C-grid only)
154    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
155     - reintroduce computation of wind from stress,
156     - compute tau (in exf_bulkformulae.F) from windstress averaged to
157       mass points to avoid tau = 0
158     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
159    o rdmnc.m: make it work with "global" files created with gluemnc
160    o rdmnc.m : some improvements in dealing with singleton dimension
161      (tested on all testreport mnc output files).
162    o genmake2: disable pkg/profiles if netcdf test fails.
163    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
164    o move call to cal_readparms up to make calendar parameters/variable available
165      to all packages
166    
167    checkpoint58v_post
168    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
169      useDynP_inEos_Zc tested.
170    o pkg/exf: changes to properly interpolate/mask/scale initial fields
171    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
172      and portions thereof.  See read_cs.txt for description and examples.
173    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
174      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
175      following the great-circle arc between those 2 points.
176    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
177      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
178    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
179     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
180     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
181     - still needs work (not working with some options ; efficiency to improve)
182       and serious testing.
183     - use this scheme for temperature & salinity in 2 advection test exp.:
184       advect_xy & advect_xz, respectively.
185    
186    checkpoint58u_post
187    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
188    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
189    o testreport: add option "-skipdir" to skip some test.
190    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
191      momentum calculation.
192    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
193    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
194      remove checkpoint.F and the_correction_step.F (no longer used);
195      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
196    o add option (linFSConserveTr) to correct for tracer source/sink due to
197      Linear Free surface
198    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
199    o pkg/thsice: fix reading mnc-pickups
200    
201    checkpoint58t_post
202    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
203    o pkg/mdsio:
204     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
205       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
206       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
207     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
208     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
209       either MDS_READ_FIELD or MDS_WRITE_FIELD )
210     - new S/R (to replace MDSWRITEMETA), which allows to write more
211       informations (variable names, time ...) to meta files.
212     - modify rdmds.m to give back the meta file content.
213    o pkg/diagnostics: change vertical interpolation to be safer, and more
214       flexible (define p-levels to interpolate to in data.diagnostics);
215      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
216       diagnostic pointer.
217    o pkg/seaice: more cleaning up of seaice_growth, added many comments
218    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
219    o fix multi-category seaice:
220     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
221       SEAICE_MULTICATEGORY
222     - fix short wave heat flux
223    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
224       and allow to use EVP solver. Change forward lab_sea: test both EVP
225       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
226    o Initial check-in of lab_sea adjoint
227      (very similar to natl_box_adjoint/code_seaice)
228      * used C-grid and EVP solver
229      * used KPP, GM/Redi
230      * uses inAdExact=.TRUE.
231      * gradient checks fail for both ADM and TLM
232        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
233        f.d. gradients actually seem more problematic than ADM, TLM gradients;
234        issue is related to forward mismatch between g77 an ifort
235    o pkg/seaice: overhaul of thermodynamics
236     - growth.F and groatb.F are replaced by new routine seaice_growth.F
237     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
238     - move a few global fields out of SEAICE.h into seaice_growth.F and
239       make them 2D (FICE/QNETO/ ...)
240     - remove FO (it is the same as QNETO)
241     - introduce a few local fields to avoid modifying external fields such
242       as atemp, etc.
243    
244    checkpoint58s_post
245    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
246      changed exf_set_gen.F so that
247        genperiod=0 means input file is one time-constant field and
248        genperiod=-12 means input file contains 12 monthly means
249    o CG2D: use pre-computed solver main-diagonal (stored in common block);
250      this affects truncation error ; generate new output file for exp. which
251      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
252        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
253        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
254        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
255        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
256        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
257    o start implementation of deep-atmosphere and anelastic formulation
258    o verification: remove 2nd copy of input files and use script "prepare_run"
259      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
260    o mom_common/vecinv/fluxform: fix a few initialisation isssues
261    o profiles: fix for multithreaded case
262    
263    o diagnostics: rename few diags:
264      s/'PRESSURE'/'RCENTER '/g
265      s/'TICE    '/'oceFreez'/g
266      s/'TAUX    '/'oceTAUX '/g
267      s/'TAUY    '/'oceTAUY '/g
268      s/'SWFLUX  '/'oceQsw  '/g
269      s/DIFx/DFxE/g
270      s/DIFy/DFyE/g
271      and add few ocean-forcing diagnostics:
272      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
273    o modifications to pkg/seaice/growth.F and budget.F, which change results of
274      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
275      as actual snow thickness.  It now refers everywhere to effective snow
276      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
277    
278    checkpoint58r_post
279    o modifications to pkg/seaice/growth.F, which change results of
280      lab_sea experiment: fixes pertain to melting snow over open water, to
281      masking EVAP under sea ice, and to using the correct AREA variable for
282      computations of EVAP, PRECIP, HSNOW, and GHEFF
283    o add ability to read bathy, salt, and theta using MNC (off by def)
284    o add flooding algorithm and advection of HSNOW for pkg/seaice;
285      both are turned off by default and do no change any results
286    o seaice advection with pkg/thsice: a step toward the use of non-linear
287      advection scheme, but #ifdef or commented out for now (requires more EXCH).
288    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
289      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
290      in natl_box (affects results @ truncation level: update output.txt)
291    o multi-threading and IO:
292      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
293      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
294        (needed to work with SingleCpuIO): tested in all verif. exp.
295    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
296      affects the results (but none of the verification test uses this scheme).
297    o Adding some pkg/diagnostics capability to pkg/seaice
298      (will certainly be subject to changes)
299    o ctrl: adding new control variables:
300      lwflux, lwdown, evap, snowprecip, apressure, runoff
301    
302    checkpoint58q_post
303    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
304      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
305      high_res_cube configuration by 4% on Columbia.
306    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
307      add (in global_with_exf/code) a version of EXF_INTERP_READ without
308      dynamical allocation (seems to work in multi-threaded).
309    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
310      single CPU io) so that TAF does not have to see EESUPPORT.h
311    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
312    
313    checkpoint58p_post
314    o obcs: stop if obcs is used with useCDscheme = .true.
315    o shelfice:
316     - fix a sign error so that no slip at shelfice interface works
317     - remove stop for combination non-hydrostatic code and shelfice. That does
318       not mean, that the results are correct, but at least they are numerically
319       stable
320    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
321    o added adjoint exch routined for all exch*3d* routines
322      and updated flow directives
323    
324    checkpoint58o_post
325    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
326      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
327    o change controling S/R for writing pickup file (new S/R do_write_pickup)
328      and clean-up reading/writing of pickup files.
329    o fix local version of read/write pickup (NH part) in rotating_tank/code
330    o simplify EXCH interface:
331     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
332     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
333    o added the regrid package
334    o shelfice:
335     - add a simple boundary layer scheme to reduce noise
336     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
337    
338    checkpoint58n_post
339    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
340       local variable (not in common block).
341    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
342      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
343      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
344        to work with SingleCpuIO.
345    o add "_d 0" to real constant of pkg/cfc subroutines ;
346       update exp. cfc_exemple & tutorial_cfc_offline output files.
347    o multi-threading and IO:
348      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
349        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
350      - barrier before and after reading.
351      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
352      - avoid using MDS_WRITELOCAL for LAND pkg output.
353      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
354        common-block variables ; Allows multi-threading with master-thread IO.
355    o change default MAX_NO_THREADS from 32 to 4 ;
356      and stop cleanly when MAX_NO_THREADS is too small.
357    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
358    
359    checkpoint58m_post
360    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
361       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
362    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
363       keep global_ocean.90x40x15 (for AD testing) with former secondary test
364       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
365    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
366        add MITgcm_tutorials (= code + all the tutorials)
367    o ecco, option to compute cost for total ssh (mean+anom)
368    o consistent with addition of ptracer and ssh in pkg/profiles
369    o profiles: adding ptracer and ssh
370    o testreport: change multi-test output-file name
371      (from output.txt.{name} to output.{name}.txt)
372    o profiles: now ok for mutli-tiles case
373    o seaice: add 4 parameters for different advection schemes for area,
374      (effective) seaice thickness, enthalphy, and snow height. Their default
375      is the standard parameter SEAICEadvScheme
376    o calc_gw:
377     - add cosFacU in zonal viscous flux (harmonic.visc.).
378     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
379       of tutorial_plume_on_slope.
380    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
381    o calc_gw: true flux-form, account for horizontal grid spacing.
382      update rotating_tank results, but not plume_on_slope (affected at
383      truncation level, 11 digits).
384    
385    checkpoint58l_post
386    o calc_gw:
387     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
388     - remove side-drag for now (need to fix it); update plume_on_slope results.
389     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
390    o commit code to make SST/SSS weights spatially variable
391      (based on either variable in-situ or variable initial T/S weights)
392    o pkg/ecco:
393      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
394        now based on horizontally varying weights wthetaLev, wsaltLev
395      * cost_averagesflags now returns year indices in addition to day, month
396      * sflux balance is performed on annual basis
397        (sflxumm, sfluxmm2, bal_sfluxmm)
398      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
399        including separate counting and multipliers
400    o pkg/rbcs
401      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
402    
403    checkpoint58k_post
404    o testreport:
405     - always build in dir. "build" (if not there, mkdir build instead of building
406       & running in input)
407     - run in dir run (if it exists), in build otherwise.
408     - call prepare_run (if input/prepare_run exists)
409     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
410    o pkg/exf modifications to interpolation and rotation routines for more
411       reasonable treatment of North Pole singularity: for tracers North Pole
412       value is set to northernmost zonal-mean value, for zonal velocity it is
413       set to zero, and for meridional velocity it is set to northernmost value.
414    o pkg/exf/exf_check_range.F
415     - add tile index to diagnostics and move stop statement to the very
416       end of the routine.
417    o pkg/diagnostics: (diagnostics_main_init.F)
418      define title of isomorphic variables according to the current config.
419    o pkg/thsice with pkg/seaice dynamics:
420    - fix domain of computation (interior only, required for exf) and do exchanges
421    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
422    o towards a standard way of dealing with multi-threading in MONITOR
423      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
424    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
425       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
426    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
427    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
428    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
429       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
430    o tracer advection:
431     - clean-up and simplify calc_common_factors.F
432     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
433       advection subroutine (but still not used within DST advection S/R)
434    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
435    
436    checkpoint58j_post
437    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
438      from file (collects calls previously in FORWARD_STEP)
439    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
440    o adjoint store dir. adjusted accordingly
441    o genmake2
442      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
443    
444    checkpoint58i_post
445    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
446      on wind stress (SEAICEstressFactor defaults to 1.)
447    o Total number of Timers is finite (<=40): comment out 2 non-essential one
448      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
449    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
450      on CS-grid: no longer loosing mass.
451    o exf & curvilinear-grid: no longer modify longitude xC & xG.
452    o pkg/ggl90: fix sloppy output and fix a bug
453    o pkg/seaice: added SEAICEuseEVPpickup parameter
454      - Set to false in order to start EVP solver with
455        non-EVP pickup files when using SEAICEuseEVP
456      - fix sign error in diffusion in seaice_calc_rhs
457    
458    checkpoint58h_post
459    * Modifications for bottom topography control
460      o replace hFacC by _hFacC at various places
461      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
462      o add non-self-adjoint cg2d_nsa
463      o update autodiff support routines
464      o re-initialise hfac after ctrl_depth_ini
465      o works for 5x5 box, doesnt work for global_ocean.90x40x15
466    * Adding verification for 5x5 box (4-layer) bottom topography control
467    
468    checkpoint58g_post
469    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
470       used for mean seasonal cycle, mean diurnal cycle); add an example
471       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
472    o pkg/ggl90:
473      - add parameter (minimum surface kinetic energy)
474      - fix bug (avoiding division by zero)
475    o couple pkg/thsice to pkg/seaice:
476      - modify advection in seaice to accomodate new scalar fields to be advected
477      - only muliDimAdection scheme work with seaice/thsice
478      - mapping of thsice-variables to seaice-variables, back and forth
479      - does not break the verification experiments, but does not give the
480        desired results either
481    o pkg/seaice
482      - make (default) second order advection a bit less confusing?
483    
484    checkpoint58f_post
485    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
486      to pkg/seaice):
487      - new routines thsice_map_exf and thsice_get_exf provide the interface
488      - add an additional formal parameter to thsice_solve4temp
489    o pkg/exf:
490      - add new fields wspeed, snowprecip (to be able to couple to thsice)
491      - correct Stefan-Boltzmann constant
492      - new parameter for longwave surface emittance
493      - separate some stuff from exf_bulkformulae into new routines  
494        exf_radiation, exf_wind
495      - add new parameters and constants: longwave emissivity for ocean, ice
496        and snow, evaporation parameters over ice
497      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
498        either wind from stress or stress from wind
499    o pkg/thSIce:
500    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
501    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
502       and THSICE_CALC_THICKN
503    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
504    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
505      to make debugging easier.
506    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
507    o pkg/bulk_force:
508      - clean-up comments and parameters ;
509      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
510    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
511      generate new output for test-experiment: aim.5l_cs.thSI
512    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
513      testreport accordingly
514    
515    checkpoint58e_post
516    o SEAICE_CGRID adjoint done
517    o R_STAR adjoint implemented.
518      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
519      * need to sort out init. of h0facc, etc.
520    o Make pkg/profile fully independent of ecco,cost, etc. stuff
521      to be able to use it in pure forward.
522    
523    checkpoint58d_post
524    o upgrade simple test-experiment to tutorial example:
525     step.1: duplicate the experiment and (step.2) will remove the old copy.
526      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
527      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
528      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
529      tutorial_global_oce_biogeo    <- copy of dic_example
530      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
531      tutorial_plume_on_slope       <- copy of plume_on_slope
532      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
533      tutorial_global_oce_optim     <- empty for now (David ?)
534      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
535     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
536    o correct a sign problem in cost_scat.F
537    o obcs and ptracers: fix boundary conditions for advections schemes
538      with larger stencil
539    o thsice adjoint: start
540    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
541      completeness
542    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
543      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
544    o ptracers adjoint:
545      * avoid extensive recomputatations
546      * fix missing re-init. of gptr (missed by TAF)
547    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
548      me to turn off the excessive output to STDOUT that this package produces
549    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
550      and add those terms in Vector-Invariant formulation.
551    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
552      if the control period (xx_hfluxperiod etc) is 0
553    o in profiles pkg, clean routines and fix details
554    o in ecco pkg, reading ssh data:
555      fix problem in case the model does not start at iter0=0
556    o fix mnc-pickup/restart for ptracers
557    o new package prifiles:
558      code to compute profile-based cost by Gael Forget
559      (modifs in ecco, ctrl, autodiff)
560    o Benign bug fix in initialization (spotted by M. Mazloff) of
561      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
562    
563    checkpoint58c_post
564    o adjoint: finish NLFS adjoint and provide reference output in
565      verification/global_ocean.90x40x15/results_ad_nlfs
566    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
567      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
568      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
569      with SEAICE_CGRID defined.
570    o move calendarDumps from "data" to "data.cal" and clean-up the code
571      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
572    o add useEXF & useCAL flags (for now, set in hard-coded way)
573    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
574      (were missing in NH mode, and wrong in quasihydrostatic mode).
575      waiting for Chris updated version of calc_gw to add those CALLs.
576    o fix bug in quasihydrostatic S/R ;
577      add a test for this option: global_ocean.90x40x15.qshyd
578    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
579      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
580    o add on/off flag useOffLine for package OFFLINE
581    o seaice:
582      - modify advection so that it works also on the C-grid
583      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
584        problem in multi-tile runs with C-grid
585      - add flags for clipping ice velocities and/or masking solver forcing
586      - fix drag (ocean on ice) formulation and a bug that caused noise in the
587        C-grid solver
588      - added a few comments to seaice_diffusion.F
589      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
590        are now exclusive)
591      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
592        required re-ordering the code a little:
593       + make DAIRN global variable (defined in SEAICE)
594       + move computation of the viscosities eta and zeta into a new separate
595         routine (because I need to recompute them in seaice_ocean_stress.F)
596    
597    checkpoint58b_post
598    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
599      update output.txt of exp. aim.5l_cs.thSI
600    o various mnc cleanups and improvements:
601      + shrink lookup tables by factor of ~4
602      + better error reporting when running out of lookup space
603      + able to handle longer path/file names (up to 500 chars)
604    o adjoint:
605      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
606      - TBD: "hidden" mom_vecinv recomp. in dynamics
607    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
608     (allow to differentiate between forcing components using new integer flags:
609      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
610     and add new flag to put Dissipation tendency out of Adams-Bashforth.
611    o ecco
612      - enable trend removal from SSH anomaly obs.
613    o adjoint
614      - a fix for PmEpR when #undef EXACT_CONSERV
615      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
616      - try to fix "hidden" recomp. in forward_step for NLFS
617        (NLFS seems broken sometimes after I checked it in)
618    o seaice:
619     - add c-grid version of the dynamic solver:
620       + three new routines that are the c-grid substitute lsr, dynsolver
621         and ostres
622       + put a few fields that were local to dynsolver into global common
623         blocks, so that I can move the computation of stresses etc into
624         seaice_lsr (saves coding but may break the adjoint).
625     - replace more hardwired parameters by runtime parameters
626     - add ice masks that mask the rhs of the implicit solvers where there
627       is no ice (commented out in seaice_dynsolver, because i am not sure
628       if this works properly), eventually this should replace the clipping
629       of ice velocities in seaice_dynsolver to +/-40cm/s.
630    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
631      include it only where its needed
632    o move balancing of fluxes before the call of external_forcing_surf
633    o seaice:
634      - correct units of turning angles (now they are really in degrees)
635      - move computation of GWATX/Y out of main routine into dynsolver
636      - initialize GWATX/Y in seaice_init
637    o Apply mask on Fresh-Water flux (needed for SSH forcing).
638      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
639    o seaice: add runtime flags for turning angles (default to zero)
640    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
641      and trend from exf forcing and ctrl control adjustments
642    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
643      (since checkpoint57x_post)
644    o change the default rotation period to 86164.s = the Earth rotation
645    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
646      and based on a reference stratification. Tested within hs94.cs-32x32x5.
647    o seaice advection: add code for choosing between the default (2nd order
648      central differences) and multiDim advection schemes provided by
649      pkg/generic_advdiff
650    o seaice:
651      - removed all references to SEAICE_GRID.h fields from
652        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
653        (cubed-sphere configuration will change a little)
654      - grid computations in seaice_init are obsolete now.
655      - cleaned up code a little so that is easier to read (hopefully).
656      - added new (better?) discretizations of default advection and diffusion
657        (turn on with SEAICEuseFluxForm)
658      - replace 1 in 3d global fields by kSurface in growth.F
659      
660    checkpoint58a_post
661    o seaice:
662      - bug fix in advect.F
663    o shelfice:
664      - separate shelfice load anomaly from pload (breaks with time
665        dependent forcing), => introduce constant field shelficeLoadAnomaly.
666        Its default is 0., but it may be computed more cleverly from (unknown)
667        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
668        done offline. A good approximation of the pressure load anomaly is
669        necessary to avoid large initial adjustment processes underneath
670        deep-reaching shelfice.
671      - small fix in ISOMIP shelfice_thermodynamics
672      - add more sophisticated thermodynamics of Hellmer (1989), this is
673        now the default
674      - give a few constants more intuitive names
675    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
676      if bulk formulae are used in long integration (especially EmPmR). Turn
677      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
678      if balancePrintMean, the imbalance that is substracted is printed to
679      STDOUT.
680    o fix bug (typo) in obcs_apply_eta.F
681    o add a new package shelfice which enables us to model the circulation
682      underneath shelf-ice with draughts of hundreds of meters.
683     - works
684     - to do: + include improved thermodynamics
685              + check whether kSurfC (from model/inc/SURFACE.h) can be used
686                instead of new field kTopC
687              + can we use topoFile, Ro_surf and existing code in ini_depth.F
688                instead of new field R_shelfIce and new code in ini_depth.F
689                and ini_mask_etc.F?
690              + adjust vertical mixing schemes?
691    o seaice pkg:
692     - add a cpp-flag to include a simple formula for a salinity dependent
693       freezing point of sea water at the surface
694     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
695       meridional stresses are now different (and hopefully correct)
696    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
697       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
698       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
699    o pkg/diagnostics: add options and parameters for regional-statistics
700       diagnostics ; define regions by reading a region-mask from a file
701       (might add other options later)
702    o pkg/bulk_force:
703     - add option and parameters to use AIM surface-flux formulae.
704     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
705       others forcing fields (defined in PARM05, parameter file "data") are loaded
706       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
707     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
708     - use the right EXCH call for uwind,vwind (to work on CS-grid).
709     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
710       and parameters (note: calcWindStress replaces .NOT.readwindstress).
711     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
712    
713    checkpoint58
714    o add "--embed-source" option to genmake2 which, when the supporting
715      tools can be compiled (as determined by genmake2) will turn on the
716      embed_files package which then embeds the entire MITgcm source code
717      (*.[fFhc] + Makefile) used for the build within the executable
718      - requested by CNH but off by default
719      - adds a paltry <9MB to the mitgcmuv executable in most cases
720      - only writes the output when useEMBEDSRC in eedata is true
721    o clean up 3-dim. relaxation codes:
722      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
723      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
724      * Thanks to Tom Haine for testing!
725    
726    checkpoint57z_post
727    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
728      affects output (@ truncation level) of exp. plume_on_slope ; updated.
729    o fix the pickup behavior for obcs in combination with ptracers
730    o fix a bug in ptracers_external_fields_load
731    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
732      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
733    o transfered surface NH pressure to eta field (if exactConserv).
734    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
735         and update lab_sea output.txt file.
736    o completing 3-dim. relaxation code: additional term
737         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
738      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
739      * At compile time, in "EXF_OPTIONS.h" set
740          #define  ALLOW_CLIMTEMP_RELAXATION
741          #define  ALLOW_CLIMSALT_RELAXATION
742      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
743          tauThetaClimRelax3Dim = 15552000.0,
744          tauSaltClimRelax3Dim  = 15552000.0,
745      * 3 cases:
746          1) Use a constant-in-time 3-dim. field
747          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
748          3) Real-time relax. to time-evolving prescribed field
749    o Adding Laplacian-type smoothness constraint on
750      initial and boundary (forcing) controls (ic, bc)
751      * enable at compile-time via
752        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
753      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
754      * Absolute scale somewhat unclear so far
755      * no area weighting was included since no other cost term does so far
756    
757    checkpoint57y_post
758    First step for a NLFS adjoint
759    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
760    o new init. routines for calc_r_star, calc_surf_dr
761    o still need to deal with ini_masks_etc
762    o testreport seemed happy
763    checkpoint57y_pre
764    
765    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
766    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
767    o add new offset feature to offline pkg (plus minor cleanup)
768    o cfc fixes for final year of integration
769    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
770      be in GCHEM_OPTIONS).
771    
772    checkpoint57x_post
773    o fix testreport Pb in multiple test experiment.
774    o cleanup our namelist syntax in verification:
775      - make it more F95 standards compliant (some work still needed)
776      - allows the vast majority of our tests to work with gfortran
777    o Non-Hydrostatic:
778     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
779     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
780    o Allow to apply AB on T,S rather than on AB(gT,gS):
781     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
782     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
783       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
784     - need a "clever" read_pickup to restart from the other AB formulation
785    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
786    o remove some unused variables (reduces number of compiler warnings)
787    o adjoint
788      * Disable useVariableViscosity for adjoint for time being
789        (there are a number of extensive recomputations)
790      * Initialize certain variables needed for adjoint
791    
792    checkpoint57w_post
793    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
794                 fix the singleCpuIO RS version of MDSWRITEFIELD
795       and add a WARNING if using globalFiles=T with multi-processors.
796    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
797      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
798    o tracer advection scheme:
799      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
800       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
801       was not very convenient).
802      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
803       (further tests needed for the implicit DST & Flux-Limiter schemes).
804    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
805      and sRef for convenience, handy, when you want to initialize
806      ptracers in a large domain with a constant non-zero value. Also,
807      untangle ptracers_init.F a little.
808    
809    checkpoint57v_post
810    o change dome exp. to use variable viscosity in side-drag terms.
811    o remove all the files from the cfc_offline test since they are now
812      incorporated into tutorial_cfc_offline which has been producing
813      identical results for a few days of testing
814    o add new parameter: sideDragFactor to enable half-slip-side BC
815      and change side-drag S/R to use viscosity from mom_calc_visc
816      (can switch back by setting sideDragFactor=0.); affects results at
817      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
818       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
819    o vorticity & strain are now computed without masking, to account for
820      no-slip-side BC in variable viscosity calculation ; mask is applied
821      anyway later on, before computing advection/coriolis terms.
822    o modify exp4 to test new obcs support for reading from external files
823      and for passive tracers
824    o fix behavior of ptracers_monitor when monitor output is written to a
825      netcdf-file; still not independent of monitor.F (writes in the same
826      file).
827    o change default value of tRef (put a uniform, meaningful value for ocean
828      & atmos) and initialize sRef (was missing, as Martin mentioned).
829    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
830      to be proportional to enstrophy dissipation length.  Thus,
831       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
832      This is now consistent with Smagorinsky and with the manual.
833    
834    checkpoint57u_post
835    o OBCS and PTRACERS: add open boundary support for passive tracers
836      - either use homogenous (pseudo) v.Neumann conditions or prescribe
837        OB-values from file; this is not different from the way theta and salinity
838        are treated
839      - however, Orlanski-radiation conditions are not supported, and the model
840        will stop if you use pTracers and Orlanski at the same time.
841      - beefed up the rountine obcs_external_fields_load: now only those open
842        boundary values are overwritten with values from files for which there
843        are really files, otherwise the OB-fields remain untouched. This makes
844        it possible to use different OBs at different ends of the domain (as
845        with EXF)
846    o reduce number of exch calls in shap_filt (s2).
847    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
848      truncation level) 4/5 MLAdjust test results (11&12 digits match).
849    
850    checkpoint57t_post
851    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
852    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
853      same truncation, independent of the face number: affects affects several
854      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
855    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
856      note that biharmonic viscosity + no-slip was not tested in any experiment.
857    o fix bug in non-linear free-surf side-drag ; generate new output for
858      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
859    o make mnc honor the writeBinaryPrec flag for most kinds of output
860    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
861    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
862      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
863    o add brackets in multi-terms sum to get same truncation, independent of
864      the face number (manage to get exactly same value of gU,gV at the cs-edge)
865      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
866    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
867      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
868      a maximum grid-scale Reynolds number.  Also, changes all length calculations
869      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
870      Suggested values of viscosity parameters found in mom_calc_visc.
871      Many new viscosity diagnostics available.
872    
873    checkpoint57s_post
874    o Add clearing-house for viscosity calculations, mom_calc_visc and
875      correct numerous bugs in LeithD and Smagorinsky discretizations.  
876      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
877      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
878      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
879      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
880      The Strain-Tension form is now called with useStrainTensonVisc=.true.
881      ViscAhStrain and viscAhTension are now retired.
882    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
883    o In response to JMC's bug report, genmake2 now ignores any soft-links
884      that it finds in the *current* directory when searching for files.
885      Soft-links found in any other source directories will still work as
886      they did before.
887    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
888      a C routine to unlimit the stack size
889    o mnc-ify pkg/aim snapshot vars
890    o mnc-ify pkg/land as requested by Daniel
891    o various changes to mnc including:
892      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
893      - output can now be grouped so that all files within a group
894          change the ITER portion of their names in lock-step together
895      - can now read ("global") PER-FACE (in addition to PER-TILE) files
896          and works with both EXCH1 and EXCH2 (but needs more testing)
897      - writing works for all verification test cases w/ g77 on Linux
898    
899    checkpoint57r_post
900    o make MNC variable initialization happen earlier
901    o add diagnostics for (almost) each term of the momentum Eq.
902    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
903    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
904    o remove MINIMAL_TAVE_OUTPUT option ;
905      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
906    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
907      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
908    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
909    o add time-dependent SST, SSS control
910    o cost terms in ecco/ modularized (new cost_generic.F)
911    o cost_averages routines are modularized (new cost_averagesgeneric.F)
912    o new infrastructure for seaice model vs. obs misfits in seaice/
913      * driver from the_main_loop.F is seaice_cost_driver.F
914      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
915      * gradient check in Exp. 6a of natl_box_adjoint/
916    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
917      (see README file)
918    
919    checkpoint57q_post
920    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
921    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
922      - bug was reported by Jean-Michel and Ian Fenty
923    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
924      update exp. cpl_aim+ocn output.
925    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
926      Needed for high-res. runs with large global files
927      to be able to limit tapelev size
928    o Changed some tests for adjoint:
929      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
930      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
931      * global_ocean.90x40x15/ back to default 3-level checkpointing
932    o Modifications to enable scripted COMMON to MODULE conversion
933      * verification/OpenAD/code/ has necessary scripts and description;
934      * converts, compiles and runs successfully;
935    
936    checkpoint57p_post
937    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
938    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
939      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
940    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
941    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
942      (was already the case for dissipation with mom_vecinv,
943       and also the case for grad.PhiHyd when staggered-timeStep)
944      This will allow to put dissipation out-off the AB time-stepping.
945     Unfortunately, affects truncation error. Update output of exp. that "fails"
946      (cg2d matching number) and leave the others for later: front_relax(10),
947      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
948      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
949    
950    checkpoint57o_post
951    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
952      (2) its ready to be documented during the 20050801 DocFest
953    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
954      for ideal_2D_oce and lab_sea on linux_ia32_g77
955    o set to #undef CTRL_SET_OLD_MAXCVARS_30
956      in global1x1_tot/code_seaice_adj to access indices 32, 33
957      (worth another tag)
958    
959    checkpoint57n_post
960    o adding precip control xx_precip 32
961    o adding swflux control xx_swflux 33
962    o Replacing 10 forcing penalty cost routines by 1 generic.
963    o Implementing partitioning in time-mean and variable adjustment
964      for atmos. state.
965    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
966    o in natl_box_adjoint:
967      * updated exp 1 to 10
968        (but does not have time-mean vs. variable split results yet)
969    o updated global1x1/*_seaice_adj/
970      to incorporate latest changes
971    o enable useSingleCpuIO for mdsio vector routines
972      (applies in particular to tapelev I/O)
973    o removed inefficient K-loop in all active_file*control*.F
974    
975    checkpoint57m_post
976    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
977      and advect_cs (use EXCH-2 and standard cs-32 grid files).
978    o pkg/exch2: filling of face-corner halo regions is optional
979      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
980    
981    checkpoint57l_post
982     tag before updating tutorials (pre-release-2)
983    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
984       for output and interpolation of input fields onto model grid)
985    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
986       Affects results of exp. rotating_tank ; update output.txt.
987    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
988          and taking the square quantity and/or using a fraction-weight field.
989    o fix aim_diagnostics_init.F mate numbers.
990    o add mnc output capability to diagnostics/diagstat and update
991      our cvsignore files for the ACSII output generated
992    
993    checkpoint57k_post
994    o lab_sea now uses diagnostics package and provides a suite of
995      new EXF diagnostics output.
996    
997    checkpoint57j_post
998    o exf
999      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1000        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1001        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1002      * extended diagnostics output
1003        - now includes all EXF variables
1004        - hs, hl moved to common block
1005        - separate S/R for diagnostics, called after ctrl vector is added
1006        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1007        - EXFqnet contains true Qnet (i.e. includes qsw)
1008      * updated verif. lab_sea, global_with_exf
1009      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1010        to ensure that diagnostics sees a true EXFqnet
1011    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1012    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1013      several times with different frequencies.
1014    o mnc-ify the thsice package as requested by Daniel Enderton
1015      - the monitor--MNC output needs work
1016      - many attributes need to be added (most are currently blank)
1017    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1018      - many attributes need to be added (most are currently blank)
1019    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1020    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1021    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1022      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1023         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1024    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1025     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1026    
1027    checkpoint57i_post
1028    o Diagnostics package was changed: diagnostic allocation is now deactivated
1029      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1030    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1031      add 1rst Order upwind vertical Shear.
1032    o add a quick fix for A/B checkpointing in OFFLINE mode
1033    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1034      end-run around the C/Fortran linking horror in eesup/src/timers.F
1035    o added pkg/runclock: allows user to terminate run based on wall clock
1036    o added non-hydrostatic scaling parameter: nh_am2
1037    o pkg/my82: futile attempt to make results compiler-independent by adding
1038      some "_d 0", etc. no effect.
1039    o for mnc output, fill the 'T' coordinate var with myTime and create a
1040      separate 'iter' variable for iteration count
1041    o pkg/diagnostics:
1042      add new capability: output of Global/Regional & per-level statistics ;
1043      tested against monitor output (including land & thSIce) on various exp.
1044    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1045    
1046    checkpoint57h_done
1047      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1048      data.diagnostics, data.gchem, data.ptracers) is done.
1049    
1050    o pkg/diagnostics: prepare for Global/Regional statistics.
1051      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1052    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1053      and rename it: DIFFERENT_MULTIPLE
1054    
1055    checkpoint57h_post
1056    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1057    o pkg/diagnostics: change output frequency, now in seconds (instead
1058      of Nb of iterations). This requires to change data.diagnostics.
1059    checkpoint57h_pre
1060    
1061    o in mnc, let the user create the output dir if both mnc_outdir_date
1062      and mnc_outdir_num are false
1063    o add fflags() to pkg/diagnostics which allows one to specify, on a
1064      per-file basis, the file precision [default behavior is unchanged]
1065    o added diagnostics to pkg/kpp, including computation of mixed layer
1066      depth based on a temperature/density criterion
1067    o updated verification/natl_box to test the new pkg/kpp diagnostics
1068    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1069    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1070    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1071      not mnc -- this mistake was found by JMC and is now corrected
1072    
1073    checkpoint57g_post
1074    o add Adams-Bashforth 3rd Order time stepping:
1075      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1076      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1077    checkpoint57g_pre
1078    
1079    o make lambda[Theta,Salt]ClimRelax spatially varying
1080      (default remains spatially uniform constant based on tau)
1081    o added new control variables
1082      * init. uVel, vVel, etanN
1083      * lambda[Theta,Salt]ClimRelax
1084    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1085      (suggested by G. Forget)
1086    
1087    checkpoint57f_post
1088    o add parameter "baseTime" = model base time = time at iteration zero
1089      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1090      account for baseTime shift
1091    o move Coriolis arrays from PARAMS.h to GRID.h
1092    checkpoint57f_pre
1093    
1094    o mnc-ifying the seaice package
1095    o introduced an alternative length scale calculation for use in the limiting
1096      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1097    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1098    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1099      as well as grad(vort3).  Made it compatible with both approximate form
1100      for the cubed sphere and full form of these gradients.  Added flag
1101      useFullLeith to select between approximate and full form.  
1102    o add "d0" in getcon.F to reduce differences between compilers/platforms
1103      update output.txt of exp. fizhi-gridalt-hs
1104    o change port_rand funtion to allow to set the seed.
1105    o fix obscure MNC bug involving conversion between reals and integers
1106      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1107        new version is now more standards-compliant
1108    o adjoint-related modifications
1109      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1110      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1111      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1112    
1113    checkpoint57e_post
1114    o Adding eddy stress controls a la Ferreira et al.
1115    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1116    
1117    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1118      update output.txt of exp. fizhi-gridalt-hs
1119    o add more "Z" dimensions and associated coordinate vars to MNC
1120    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1121    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1122      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1123      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1124      months and years.  Requires pkg/cal.
1125    o diagnostics: add pickup functionality
1126      - off by default for backwards compatibility
1127      - current version only uses MDSIO -- MNC will be added
1128    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1129    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1130    
1131    checkpoint57d_post
1132    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1133    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1134      output from the diagnostics package
1135    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1136    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1137      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1138    o add coordinate variables to the MNC output from the diagnostics package
1139    o change MNC-flags default value: true when useMNC=TRUE
1140    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1141      the ability (off by default) to read the grid information using MNC
1142    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1143    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1144    o do snap-shot diagnostics at the middle of the time-interval (instead of
1145      at the end).
1146    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1147      new test for AIM with thSIce + slab-ocean
1148    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1149    o move state variable diagnostics to the beginning of the time step ;
1150      (note: still needs some work specially for snap-shot diagnostics)
1151      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1152    
1153    checkpoint57c_post
1154    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1155    o generate new output.txt files on faulks with g77 & the new -ieee option
1156    checkpoint57c_pre
1157    
1158    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1159      update output.txt of exp. global_ocean.90x40x15
1160    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1161      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1162    o add saltFlux(+File) forcing capability with periodicExternalForcing
1163    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1164    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1165    o improvements for the MNC output from DIAGNOSTICS:
1166      - correct handling of the unlimitied dimension
1167      - all dims now have associated coordinate variables
1168      - variables located at U, V, and Corner ("Z") points are now written
1169        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1170        *all* data points are output
1171    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1172    o added pkg/seaice/seaice_monitor.F
1173    o mdsio_readfield.F can now read files visible only to master MPI process.
1174    o pkg/seaice: some test code for ice-modified ocean stress
1175    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1176      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1177      spurious negative numbers for precipitation and humidity.  Will cause
1178      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1179    o pkg/ctrl/
1180      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1181        May be enabled via doPackDiag
1182      *  introduce z-scaling of
1183         + gradient (doZscalePack) and
1184         + control (doZscaleUnpack)
1185    o pkg/mdsio/
1186      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1187      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1188    
1189    checkpoint57b_post
1190    o simplify options in diagnostics_fill arguments (remove weird combinations)
1191    o fix MNC coordinate variables so that they now contain per-face index
1192      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1193      general, EXCH2 grids are only aligned to a "local" coordinate system
1194    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1195    o Implement instantaneous output within pkg diagnostics:
1196      setting a negative frequency in data.diagnostics produces
1197     "snap-shot" output (as opposed to time-average if freq > 0)
1198    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1199      NOTE: change ptracer diagnostics name: use 2 characters to work with
1200            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1201    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1202      becomes the coordinate variable for the 'T' dimension
1203    o add CF-style coordinate variables to MNC
1204      - just a first cut:  numbers are meaningless on the cubesphere and
1205        missing along the T axis but otherwise it works!
1206    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1207    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1208    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1209      this is based directly on what the model compute, so that the content of
1210      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1211    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1212    o clean up build options files for SunOS, in particular
1213      - remove -traditional from xmakedepend
1214      - change -xarch=v9 to -xarch=native for f77
1215      - restore use of make (not gmake)
1216      - add CC=gcc if using g77
1217    o changes per discussion of AM, JMC, & EH3 today:
1218      - move redundant "grid" variables out of "state" -- in preparation of
1219        creating proper CF-style coordinate variables and in recognition
1220        that any/all grid variables can be easily copied (eg. w/NCO) from
1221        the grid files into any of the other NetCDF files
1222      - *always* output grid variables with MDSIO (this will eventually be
1223        changed)
1224      - output MNC grid file if useMNC is true
1225    o every instance of _END_MASTER() has been found and replaced with
1226      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1227      preprocessors
1228    o re-arrange diagnostics pkg initialisation:
1229     - allow each package to extend the available diagnostics list
1230     - add some checking and fix small problems (multi-threaded, ...)
1231     - new S/R diagnostics_fill (replace fill_diagnostics):
1232       look through the short list of active diag. (instead of the long list)
1233       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1234    
1235    checkpoint57a_post
1236    o this set of changes restores TAMC compatibility
1237      tested for global_ocean.90x40x15 adjoint on trough
1238      (what a pain)
1239    
1240    checkpoint57a_pre
1241    o some modifs in tools/build_options for sunos
1242    o call ctrl_pack for ctrl at end for optimcycle=0
1243    
1244    checkpoint57
1245    o add horizontal bi-harmonic viscosity for vertical velocity
1246      - new parameter viscA4W (defaults to viscA4)
1247      - affects only non-hydrostatic code
1248      - to be done: no-slip lateral boundary conditions
1249    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1250    o implement Implicit Vertical advection for pTracers
1251    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1252      (implemented also for implicit vertical diffusion & advection)
1253    o OBCS: extend application of tracer open boundary conditions
1254      to a strip beyond the boundary of width Olx/Oly
1255    o add call monitor to TAF set of required calls (flow directives)
1256      and include in natl_box_adjoint
1257    o untangle a few ifdefs related to cost, ctrl, autodiff
1258      untangel a few ALLOW_ECCO_OPTIMIZATION
1259    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1260      (theta2, salt2 in ecco_cost_weights)
1261    
1262    checkpoint56c_post
1263    o OBCS as control variables
1264      - update ctrl_ad_diff.list, obcs_ad_diff.list
1265      - remove balance of obcs controls from default
1266      - fix index bug nobcs in ctrl_init
1267      - fix dummy fields filen in ctrl_pack
1268      - add dummy weights for obcs
1269    o lsopt: comment out fort.94 output
1270    o optim:
1271      - remove unnecessary header files
1272      - adjusted namelists
1273      - add xerbla.F to Makefile
1274    o exf:
1275      - multiple modifications of exf_check_range
1276      - unit change in exf_init_runoff from [m/year] to [m/s]
1277    o mdsio:
1278      - i/o-vector change debugLevel from debLevA to debLevB
1279    
1280    checkpoint56b_post
1281    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1282      is called from DO_THE_MODEL_IO
1283      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1284      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1285      - clean up PTRACERS_WRITE_TIMEAVE a little
1286    o add another verification experiment that tests both the cfc-pkg and
1287      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1288      reactive tendencies treated inline with regular timestepping
1289    o testreport previously did a lousy job of comparing small numbers, so
1290      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1291      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1292      testreport.
1293    o ptracers_monitor: bug fix for MPI
1294    
1295    checkpoint56a_post
1296    o GCHEM: finish reorganizating the package
1297      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1298        (introduces another 3D-array for each passive tracer, but only if
1299        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1300        gchemTendency is not needed because the timestep is done separately)
1301      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1302      - GCHEM is now---more or less cleanly---separate from PTRACERS
1303      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1304        so clear to me how that should be done in a general way.
1305    o CFC: improve formatting of output in CFC_ATMOS
1306    o PTRACERS:
1307      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1308        that ALL experiments with ptracers enable can be checked. This makes
1309        GCHEM_MONITOR obsolete.
1310      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1311        monitorFreq
1312      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1313    o add PTRACERS (PTR0[1-5]) to testreport output
1314    o exf_check_range:
1315      * default changed to .TRUE.
1316      * will check values for niter0 if debLevA, every timestep if debLevB
1317      * STOP in exf_check_range if 'out of range'
1318      * range chosen generous to allow for potential extema
1319      TBD: a version with stricter range
1320           permitted range would be runtime parameters
1321    o GMredi:
1322      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1323      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1324      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1325    o GCHEM:
1326      - move call to GCHEM_FORCING_SEP, so that it is now called before
1327        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1328      - introduced a useGCHEM runtime flag and applied it everywhere.
1329      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1330        this flag is now only visible within GCHEM-pkg routines.
1331      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1332        be replaced by a 3D array that is computed before thermodynamics; for
1333        this, the tracer ID iTracer had to be included into the parameter list
1334        of ptracers_forcing
1335      - set up forward_step to call gchem_forcing, that will replace
1336        gchem_forcing_int in ptracers_forcing
1337      - cleaning up
1338    o small cleaning of exch2: remove files that are also in eesupp/src
1339    
1340    checkpoint56
1341    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1342    o mnc: cleanup "full" files--fixes out-of-memory problem
1343    o ECCO-GODAE
1344      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1345      * fully merged and updated from SIO code
1346        windstress sign change affects
1347        - exf_inscal_[u/v]stress
1348        - sign of xx_tau[u/v] adjustments
1349        - signs in cost_scat
1350      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1351      * natl_box_adjoint updated and compressed
1352      * 2-level checkpoint switch added
1353        (tested in EXP. 1 of natl_box_adjoint)
1354      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1355    o SVD
1356      * first complete, non-hacked version for SVD calculations
1357      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1358        performed via direct access files admtlm_vector.it????
1359        (via ctrl_[un]pack)
1360      * optimcycle is used for ARPACK iteration counter
1361        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1362      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1363        and add linear transforms where necessary
1364      * controls are initial/final SST, SSS (can be extended; need to check
1365        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1366    o mdsio: filename info to both stderr, stdout
1367    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1368      from sign change
1369    
1370    checkpoint55j_post
1371    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1372      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1373    o add consistent build directories and .cvsignore files to verification
1374    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1375    o make all subroutines 30 or less characters in length for certain older
1376      compilers to work (a thorough search only turns up two routines in
1377      pkg/ptracers)
1378    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1379      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1380    
1381    checkpoint55i_post
1382    o change arrays for total vertical diffusivity (2.D if explicit,
1383      3.D if implicit) ; each ptracer uses its own background value.
1384    o added mnc/NetCDF output capability to ocn_compon_interf
1385      - added bits to verification/cpl_aim+ocn so that it can run on
1386        ITRDA and other clusters without the mpirun "-wd" option
1387    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1388      configuration
1389    o give MNC the ability to create additional files rather than
1390      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1391      - the default is just less than 2GB which is a practical limit
1392        on many systems
1393    o Compute the non-local term using either KPP vertical diffusivity (=default)
1394       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1395    
1396    checkpoint55h_post
1397    o add verification test "vermix"
1398    o remove all the *_ioinc flags and replace with the single global
1399      outputTypesInclusive flag
1400    o allow to set a vertical profile of vertical diffusivity for T & S
1401    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1402    o useMNC moved from data.mnc to data.pkg
1403    
1404    checkpoint55g_post
1405    o Renaming carbon AD experiments to comply with testreport conventions
1406    o Updating adjoint of Held-Suarez hs94.1x64x5
1407    o Fixing directives for non-ECCO forward_step, after ECCO directives
1408      have been fixed to avoid recomp. of do_oceanic_phys
1409      Works well for global_ocean.90x40x15,
1410      but recomp. issue remains for carbon
1411    o Updating adjoint output for natl_box_adjoint after
1412      pkg/ecco has been modified (see taga c55d_post)
1413    
1414    checkpoint55f_post
1415    o rename to timeave_init_fixed
1416    
1417    checkpoint55e_post
1418    o some delicate re-shuffle of store directives to avoid one
1419      extra call of do_oceanic_physics
1420      affects ecco_the_main_loop.F, do_oceanic_physics.F
1421      checkpoint_lev1_directives.h
1422    o NB: this may break global_ocean adjoint temporarily,
1423      but it is clear how to fix it. Will do later, need this now.
1424    
1425    checkpoint55d_post
1426    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1427    o ecco_cost_weights is modified to 1x1 runs
1428    o modifs to allow observations to be read in as
1429      single file or yearly files
1430    o enable to read exf forcing fields as either
1431      single file or yearly files (flag useExfYearlyFields)
1432    checkpoint55d_pre
1433    
1434    o switch between 2-level and 3-level checkpointing
1435    o add ability of MNC to write local and "partial" (eg. 2D slices where
1436      the full 3D field is never actually stored) arrays to NetCDF files
1437      with the correct (that is, the complete multi-dimensional) set of
1438      array indicies
1439      - used in mom_vecinv() to write the diagFreq output
1440      - tested (demonstrated) in verification/aim.5l_cs
1441    o further mnc-ification
1442      - add verification/lab_sea to the list with mnc setups
1443      - fix undefined mnc v-names in cd_code
1444      - add kpp to mnc output (both snapshot and timeave)
1445    o non-hydrostatic code
1446      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1447        in calc_gw.F
1448      - defaults to viscAh
1449      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1450        friction or Leith) in non-hydrostatic mode, as long as there is
1451        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1452    o pkg/cost
1453      extend simple cost functions to treat time mean quantities
1454      (T,U,V) via cost_accumulate_state from cost_tile
1455    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1456        be 2 times larger than the minimum size the advection scheme requires.
1457        now get a perfect conservation of salt in advect_cs test-exp (updated)
1458    o GGL90 (Gaspar's TKE mixed layer)
1459      - add horizontal diffusion of TKE, requires exchanges in
1460        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1461        default. In OPA there is no horizontal diffusion of TKE but the
1462        mixing coefficients are computed from a horizontal average of TKE of
1463        6 points or so. I think that diffusion has a little more physical
1464        justification.
1465      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1466        was in vain)
1467      - mask tke-variable in ggl90_init
1468    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1469    o fix biharmonic diffusion on CS-grid.
1470    o more obcs stuff
1471      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1472        for reading boundary values. This routine is called from
1473        obcs_prescribe_read
1474      - updated obcs_check
1475      - changed sponge layer relaxation parameter units for days to seconds
1476      - turned off sponge layer by default
1477      - changed argument list of OBCS_CALC to myTime+deltaTclock
1478      - fixed about 35 bugs in obcs_external_fields_load
1479    
1480    checkpoint55c_post
1481    o obcs stuff
1482      - new runtime flags useOBCSprescribe, useOBCSbalance
1483      - re-arranged obcs_calc
1484      - moved exf_getobcs to obcs_prescibe_read
1485        obcs_prescibe_read is called after ORLANSKI stuff
1486        and independent of it (executable can contain all).
1487      - updated obcs_check
1488      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1489        These may be necessary only if tangential velocities are
1490        prescribed at OB, not sure, needs testing.
1491    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1492      which simplifies the calls and passes the ifc check-bounds test
1493    
1494    checkpoint55b_post
1495    o add a 2D scalar, Z location, exchange_2 routine.
1496    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1497      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1498      affects advect_cs results (for the wrong reason): update output.txt
1499    o use a more standard discretization for biharmonic viscosity ;
1500     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1501      affects results of dome set-up: update output.txt
1502    o fix gad_advection.F (CubedSphere part), back to version 1.23
1503    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1504    
1505    checkpoint55a_post
1506    o merged code to
1507      * prescribe/read time-dependent open boundaries
1508        (works in conjunction with exf, cal)
1509      * sponge layer code for open boundaries
1510      * each boundary N/S/E/W now has its own CPP option
1511        (healthy for the adjoint)
1512    
1513    checkpoint55
1514    o up-to-date adjoint of previous breaks
1515      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1516      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1517      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1518      - carbon: * remove tr1-related adjoint verification
1519                * add ptracer as control variable
1520    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1521      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1522    
1523    checkpoint54f_post
1524    o in verification/carbin/ remove experiment related to
1525      ALLOW_PASSIVE_TRACER (array tr1 etc)
1526      code_ad/ input_ad/ results_ad
1527    
1528    o add two new packages
1529      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1530        + subject to optimization (memory)
1531      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1532        + subject to reordering (many GOTOs in the original code)
1533        + so far opps is called for every (i,j) point, and then operates in
1534          the vertical; one may want to reorder the scheme in order operate in
1535          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1536          fields)
1537    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1538      - all verification tests compile and run with linux_ia32_g77
1539      - defaults are compatible with current input files--nothing
1540        should change if you were not previously using MNC
1541      - MNC output has been added in numerous places (eg. timeave)
1542        but there are still a few writes not yet do-able with MNC
1543        (this is in progress)
1544      - flags now allow for either/or/both use of MDSIO and MNC and
1545        documentation will soon follow
1546      - numerous small formatting cleanups for ProTeX
1547    o add version info (via BUILD_INFO.h) to MNC and stdout
1548    
1549    checkpoint54e_post
1550    o add two new packages
1551      - pp81 (Packanowski and Philander, 1981), Richardson number and
1552        stratification dependent mixing
1553      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1554      - these scheme operate in a similar manner as KPP (without ghat, of
1555        course), however there is only one diffusivity that is used for both
1556        temperature and salinity (and passive tracers)ç
1557    o add offline package
1558    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1559      provided by Stephanie Dutkiewicz
1560    o genmake2: add ability to search for C compilers and cleanup test output
1561      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1562    
1563    checkpoint54d_post
1564    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1565    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1566      leading to additional shift by 5 days each year of integration
1567       (i.e. leading to considerable offset over the years)
1568    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1569    o start with no AB and no initial filtering (staggerTimeStep):
1570      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1571    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1572      (external loading & cpl import/export stay in forward_step.F)
1573    o update coupling interface to work with new staggerTimeStep
1574    o change MDSIO ptracers_pickup.
1575    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1576    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1577    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1578    
1579    checkpoint54c_post
1580    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1581      this affects (truncation error) output.txt of test-exp:
1582       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1583    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1584    o change Qnet to always be the net heat flux, (+upward).
1585      affects (truncation error) output of natl_box exp.: updated
1586    o define the max number of passive tracers in PTRACERS_SIZE.h
1587    o start to test mnc routinely in exp0
1588    o add sea-ice loading (sIceLoad) as a new forcing field.
1589    
1590    checkpoint54b_post
1591    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1592       impressive on Altix and Opteron systems)
1593    o diagnostics can now write NetCDF files through the mnc package
1594    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1595    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1596    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1597      affects (truncation error) output of lab_sea & natl_box exp.: updated
1598    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1599    
1600    checkpoint54a_post
1601    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1602    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1603    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1604    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1605      + internal_wave (shift in writing cg2d_ini_res)
1606    checkpoint54a_pre
1607    
1608    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1609      - modified verification/lab_sea and natl_box_adjoint accordingly
1610    
1611    checkpoint54
1612    checkpoint53g_post
1613    o prepare splitting of thermodynamics: store convect.counter in common block
1614    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1615      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1616    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1617    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1618    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1619    o restore adjointability
1620    
1621    checkpoint53f_post
1622    o modifications that affect AIM experiment results (update output.txt):
1623      - no advection of S at top interface Nr (pkg/generic_advdiff)
1624      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1625    o AIM pkg:
1626      - include stability function into surf.Flux derivative relative to Tsurf
1627      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1628    
1629    checkpoint53e_post
1630    o merged cylindrical coord configuration
1631    o added rotating_tank experiment
1632    checkpoint53e_pre
1633    
1634    checkpoint53d_post
1635    o faulks upgraded: re-generate output.txt that have changed:
1636       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1637    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1638    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1639    o added Sadourny discretization of Coriolis
1640      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1641      - re-enabled use of omega3 (useAbsVorticity)
1642    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1643      vector-invariant equations
1644      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1645    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1646      hopefully without new bugs
1647      - still to do: biharmonic friction for non-hydrostatic w
1648    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1649    o regenerated output for global_ocean_ebm (using -ieee)
1650    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1651      of mom_common/
1652      - simple re-arrangement of instructions within computing loop
1653    checkpoint53d_pre
1654    
1655    checkpoint53c_post
1656    o new version of coupler for AIM+thSIce and Ocean models
1657     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1658     - land: change Evaporation of snow
1659     - aim with thSIce: fix bug in snow-precip.
1660    o changes to calc_gw.F
1661     - bug fix for w^2 term near the bottom boundary
1662     - (hopefully) improve the lateral slip boundary condtions for use with
1663        partial/looped cells
1664      - because the bug fix changes two verification experiments anyway (exp5
1665        and plume on slope), change the lateral boundary condition from half slip
1666        to the value of no_slip_sides
1667    o ebm package wasnt quite up to the parallel task. Fixed that.
1668    o Adjoint of EBM package + verification
1669      * TLM OK
1670      * ADM not sufficient accuracy yet (needs further testing)
1671    
1672    checkpoint53b_post
1673    o Commiting new energy balance model to repository
1674      * package is pkg/ebm
1675      * verif. is verification/global_ocean_ebm
1676      * references are in ebm_driver.F
1677    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1678    C        Global thermohaline circulation. Part I:
1679    C        Sensitivity to atmospheric moisture transport.
1680    C        J. Climate 12(1), 71-82
1681    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1682    C        Global thermohaline circulation. Part II:
1683    C        Sensitivity with interactive transport.
1684    C        J. Climate 12(1), 83-91
1685    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1686    C        Destabilization of the thermohaline circulation
1687    C        by atmospheric eddy transports.
1688    C        J. Climate 7(12), 1870-1882
1689    o Will need long integration testing.
1690    checkpoint53b_pre
1691    
1692    o created pkg/mom_common in preparation for variable viscosity code
1693    o renamed and split ini_mnc_io
1694    o pkg/land: only liquid water can diffuse or run-off
1695    o AIM using land: soil wetness availability account for snow
1696    o added printMapIncludesZeros to EEPARMS namelist
1697    
1698    checkpoint53a_post
1699    o restore TAMC compatiility for exf_constants.h
1700      (no usage of _d in .h)
1701    o Additional storing in KPP in an attempt to fix
1702      TAMC problem with adjoint of KPP code.
1703      (no success...)
1704      Identical code works fine with TAF.
1705    o Fixed verification/natl_box_adjoint experiments.
1706      Initial conditions for Experiments 4 and 5 are now
1707      set to "SEAICE_initialHEFF=0", which is more reasonable,
1708      and hence gives results closer to that of Experiment 2.
1709      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1710    
1711    checkpoint53
1712    o stable checkpoint with up to date adjoint
1713      TLM tests only run for 1st grdchk at the moment. Its unclear if
1714      this is a code problem or a problem with resetting code for g_
1715      variables that is being autogenerated wrong.
1716      Otherwise:
1717       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1718       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1719         are both still in chaos following their security messes.
1720    
1721    checkpoint52n_post
1722    o various build (mostly genmake2) changes including:
1723      - ability to build/run more easily within Cygwin and MacOS X
1724      - more complicated Makefiles with a stronger dependence on Gnu Make
1725    o pkg/seaice modifications
1726      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1727        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1728        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1729      - changed proxy for geostrophic velocity and updated
1730        verification/lab_sea/results/* accordingly
1731      - removed ADI dynamic solver from pkg/seaice
1732      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1733        they caused a segmentation fault under certain circumstances
1734      - removed unused field WATR
1735    o bug fix in exf-package:
1736      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1737         now reflect that.
1738    o small fixes in the cal-package:
1739      - set reference date to first of January for the 'model'-calendar
1740      - failing of cal_CheckDate in cal_FullDate now actually results in a
1741        warning
1742    o small modifications in exf-package to increase flexibility:
1743      - change climtempfreeze from a constant to a runtime parameter that
1744        is specified in data.exf_clim (default = -1.9)
1745      - introduce runtime parameter windstressmax (default = 2.0) that is
1746        specified in data.exf
1747    o fix in pkg/thsice:
1748      - update Evap (Tsf changes) to be consistent with Latent heat flux
1749      - maintain snow precipitation unchanged (even if Tsf >=0).
1750     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1751    
1752    checkpoint52m_post
1753    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1754      this does not change any of the results, because myIter=0 in swfrac always
1755      lead to jwtype=2 (the default anyway), but the call makes little sense
1756      as a default
1757    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1758    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1759      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1760    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1761    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1762    o extending useSingleCpuIO option to work with new exch2 I/O format
1763      - old-style, missing-tile I/O is still accessible by defining CPP
1764        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1765    o monitor package can write to NetCDF files and/or STDOUT
1766    o fix re-definition bug in MNC_GRID_INIT_ALL()
1767    o doc/api_reference added
1768      - a framework for building an API Reference Manual using all
1769        the "protex" comments embedded in the code
1770      - see pkg/generic_advdiff, pkg/mnc for examples
1771    o MNC:
1772      - make myThid the last argument for all subroutines
1773      - new default for the grid files: NO halos
1774      - add useMNC and other run-time flags
1775      - separate per-file-group handling of the unlimited dimension
1776      - early initialization of MNC w/ flags read at the eeboot stage
1777        and lookup tables set in initialize_fixed
1778      - write all MNC output to a freshly-created directory
1779    o thermodynamics sea-ice (thsice) is now tested with testreport.
1780    o test exp. advect_cs: use the standard cs32 grid ; update output.
1781    o Added functionality to grdchk:
1782      pick global i,j,k position (or nearest wet) where to perform check.
1783    
1784    checkpoint52l_post
1785    o new land formulation:
1786      a) use ground enthalpy as prognostic variable to ensure exact
1787         energy conservation.
1788      b) account for water temperature and for latent heat of freezing
1789         in all processes (rain, run-off, ground storage)
1790      c) compute surface and ground temperature implicitly.
1791    o aim_v23 modification for new land model:
1792      a) Treat separately land / ocean / sea-ice surface fluxes
1793         to allow implicit computation of land & sea-ice surface temp.
1794      b) add snow precipitation.
1795    checkpoint52l_pre
1796    
1797    o fix problem (when 1 tile is empty) in min/max monitor.
1798    o fix bug in timeAve (u,vZetatave in common block)
1799    o no restoring terms under ice for pkg/seaice
1800    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1801    o bug fix for pkg/seaice pickups
1802    o change MNC call locations and add coordinate attributes
1803    o mask vorticity at the corner ; affects global_ocean.cs output
1804    o fix ini_curvilinear_grid ; test CS experiments with mpi
1805    o aim.5l_cs: modify sea-ice fraction input file ; update output
1806    o exf: Adding simple range check routine for exf fields after read
1807    
1808    checkpoint52k_post
1809    o removed top-level directory "diags"
1810      - we migrated these functions to pkg/timeave a long time ago
1811    o fixed bug introduced in pkg/monitor
1812    o accuracy ctrlprec = 32 insuffient for gradient checks using
1813      averaged fields (I/O via cost_averages)
1814      -> use ctrl.h in active_file*.F to control I/O precision.
1815    o paramter list of CALL ADTHE_MAIN_LOOP
1816    o added initial do_the_model_io to ecco
1817    o set all ...Freq to zero after cost_final
1818      taveFreq, dumpFreq, pChkptFreq
1819    o MAIN and ECCO differentiability restored
1820    
1821    checkpoint52j_post
1822    o fix nchklev in tamc.h for global_ocean...
1823    o Bringing flow and store directives up-to-date
1824    o Really weird thing!
1825      call do_the_model_io from the_main_loop with parameters
1826      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1827      TAF places a faulty re-call of initialise_varia
1828      after cost_final call which should not be there!
1829    checkpoint52j_pre
1830    
1831    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1832      error messages
1833    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1834    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1835      debug output
1836    o modfied mdsio_writefield.F to handle non-global files under exch2
1837    o update AIM Cubed-Sphere exp (aim.5l_cs):
1838      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1839    o update AIM Equatorial Channel exp:
1840      use standard aim_v23 pkg and change the SST fields to be more realistic.
1841    o globalFile now works with exch2
1842    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1843      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1844    o limit timeave output for hi-res integrations
1845    
1846    checkpoint52i_post
1847    o removed CPP_EEOPTIONS.h from verification/*/code
1848    o updated the tiling for global_ocean_pressure
1849    checkpoint52i_pre
1850    
1851    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1852      the old pkg/aim).
1853    
1854    checkpoint52h_pre
1855    o shortened offending lines in exch2_send_rx?.template
1856    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1857    o genmake2: add build & execute test for NetCDF code
1858    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1859      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1860    o added useSingleCPUIO flag to monitor.F and mon_out.F
1861    o added temporary hack for sea-ice dynamics on the cube:
1862      metric terms are ignored and it is assumed that
1863      there is no sea-ice on cube faces 1, 2, 4, and 5.
1864    
1865    checkpoint52f_post
1866    o added exch2 cube routines to pkg/exch2
1867    o modified hs94.cs-32x32x5 to use it
1868    o added new grid files to hs94.cs-32x32x5
1869    checkpoint52f_pre
1870    
1871    checkpoint52e_post
1872    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1873      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1874    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1875      to work with implicit vertical advection and AB ;
1876    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1877    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1878     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1879    checkpoint52e_pre
1880    
1881    o fix bug in impldiff when Nr=1 or Nr=2.
1882  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1883  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.  o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1884  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2

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