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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.819 by jmc, Fri May 18 03:02:47 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 exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
8      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
9    
10    checkpoint59b
11    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
12      - export/import (between ocean & coupler) fields needed for ocean DIC.
13    o pkg/seaice:
14      - get rid of three more exchanges seaice_calc_viscosities (required
15        different loop boundaries in seaice_lsr and seaice_ocean_stress)
16      - bug fix in seaice_ocean_stress (update of lab_sea required)
17      - reduce loop boundaries to necessary minimum also in seaice_evp
18      - go back to the old way of computing deltaC/Z as the adjoint likes that
19        better
20    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
21      passive tracer to an Age Tracer) + update output.txt
22    o pkg/exf:
23      - implement A-grid / C-grid selection for wind-stress input files.
24      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
25      for now, in exf_bulk_largeyeager04.F only :
26      - change implementation for case where windspeed + 2. components wind-stress
27        are read-in. AND use rhoConstFresh to convert evap.
28    o pkg/seaice:
29      - use correct EXCH_UV for wind-forcing (on A-grid).
30      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
31        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
32    o pkg/exf:
33      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
34      EXF_INTERPOLATION:
35      - merge global_with_exf/code version of exf_interp_read.F
36        to the main code ;
37      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
38        reading the file ; Important: This options needs to be defined to recover
39        previous code.
40        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
41      - no longer loose real*8 precision along the way when using exf_iprec=64.
42    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
43      - change discretisation of evp-solver in order to avoid another exchange
44        (changes lab_sea) and clean up a little
45      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
46        help the adjoint (this also changes the results slightly)
47      - add a few "_d 0" where they had been missing in seaice_evp.F
48      - cleaning up: remove unused seaice_calc_rhs.F
49    o pkg/exf: some cleaning-up:
50      - change various "constants" into runtime parameters
51      - cleaned-up Large&Yeager04 routine which should eventually
52        replace exf_bulkformulae.F (changed names of S/R and CPP)
53        and merged various ALLOW_ATM_WIND options
54     only used with thsice pkg (in thsice_get_exf.F):
55      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
56        which are used when useStabilityFct_overIce=TRUE (= the default)
57      - change default values of ice & snow emissivity and scale downward LW
58        by ice & snow emissivity.
59    o pkg/thsice:
60     fix few little problems, in thsice_calc_thickn.F:
61      - growth vertically (and not laterally) if iceFrac == iceMaskMax
62      - melt laterally only if hIce < hThinIce (as the comments say)
63      and in thsice_extend.F:
64      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
65      - start to form ice as soon as the minimum ice-volume is reachable.
66     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
67      and cpl_aim+ocn
68    o pkg/kpp
69     - move computation of surface related input fields to KPP into a new
70       subroutine kpp_forcing_surf.F
71     - remove wrong (within bi,bj loops) EXCH calls.
72     - little cleaning (add argument myThid in last position, cvs header ...)
73     - for now, fix conservation problem by exchanging KPPviscAz (may not
74       be the best fix)
75    o pkg/seaice
76     - check for inconsistent evp parameter/cpp-flag combination
77     - remove leftover errIO flat for obsolete name list error handling
78    o OpenAD
79     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
80    
81    checkpoint59a
82    o pkg/seaice: some parameter clarifications and a little bit of clean up
83    o pkg/thsice: rename run-time parameters:
84       himin       -> hIceMin
85       himin0      -> hThinIce
86       hihig       -> hThickIce
87       i0          -> i0swFrac
88       transCoef   -> bMeltCoef
89       frac_energy -> fracMelting
90      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
91       with default values (for now) that do not change the results.
92      remove old version of thsice vars advection in pkg/seaice.
93    o in FFIELDS.h:
94      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
95      - make pLoad & sIceLoad always available (but still only used if
96         ATMOSPHERIC_LOADING is #define).
97    o pkg/kpp: replaced _KPP_RL with _RL
98    o bug fixes for vertical diffusivity computations when both KPP and
99        3D diffusivity arrays are used.
100    o pkg/seaice: fix bug in evp solver, while doing that
101      - change (improve?) discretization of stress computations for both
102        cgrid-lsr and evp solver
103      - add a new routine to compute strain rates
104      - the above changes lab_sea results
105      - add no slip conditions for evp solver (off by default), lsr-version
106        may follow
107      - fix exchange for shear at Z-points (does not change lab_sea)
108      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
109        (to force the user to pick a time step since there is not "safe" way
110        of choosing it)
111      - add principal stress diagnostics
112      - rearrange fields for evp a little to avoid having to call a: too many
113        exchanges and b: exchanges for stress trensor components which we do
114        not have.
115      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
116        of evp, complete rewrite for lsr case (latter is does not yet work
117        in all cases)
118    o pkg/kpp: add code to have mixing in shelf ice caverns
119      - add myThid to all kpp routines (long overdue)
120    
121    checkpoint59
122    o pkg/exf:
123      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
124        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
125      - move exf header files from lower_case.h to UPPER_CASE.h ;
126        add missing cvs Header & Name
127      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
128      - add namelist param. selectStressGridPosition, exf_monFreq
129      - retire many _CLIM routines, and remove data.exf_clim
130        + params moved to data.exf
131        + climsst, climsss now handled by exf_set_gen, i.e.
132          climss?period=0 refers to constant field,
133          climss?period=-12 to monthly forcing
134      - split up namelists in data.exf
135    o pkg/seaice:
136      - remove seaice_exch and seaice_exch_uv
137      - remove superfluous exchange of theta
138      - add myThid to seaice_budget_ocean/ice
139      - add new interface for atmospheric wind forcing (C-grid only)
140        + new routine
141        + two new field (taux, tauy for stress over ice)
142        + removed one global field (DAIRN) for C-grid case only
143    o pkg/thsise
144      - 2nd set of modifs for thsice adjoint in conjunction with exf
145    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
146    
147    checkpoint58y_post
148    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
149      vertical diffusivity, similar to that in MOM4; turned on using
150      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
151      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
152    o Added capability for 3D specification of background vertical diffusion
153      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
154      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
155      "data" file that contains the 3D vertical diffusivity coefficients.
156    o ice dynamics (pkg/seaice) with thsice thermodynamics:
157      - add code within pkg thsice to advect & diffuse sea-ice fields
158      similar to (and will replace) what has been added in  seaice_advdiff.F,
159      but: - conserving Mass, Heat & Salt.
160           - better when using non-linear advection scheme (not yet fully tested)
161           - can also be used in atmospheric set-up (for now, only the diffusion).
162    
163    checkpoint58x_post
164    o IO option for global-file compact format:
165      - add options when generating topology (utils/exch2/matlab-topology-generator)
166      - add I/O capability (pkg/mdsio).
167      - adapt utils/matlab/rdmds.m to read this format.
168      for now long-line format not yet supported by pkg/mdsio (& exch2).
169    o shelfice: add a few diagnostics
170    
171    checkpoint58w_post
172    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
173      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
174      (and replace horiVertRatio in NH code).
175      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
176                         and tutorial_plume_on_slope (sensitive to truncation)
177    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
178      directly to drive seaice model (C-grid only)
179    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
180     - reintroduce computation of wind from stress,
181     - compute tau (in exf_bulkformulae.F) from windstress averaged to
182       mass points to avoid tau = 0
183     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
184    o rdmnc.m: make it work with "global" files created with gluemnc
185    o rdmnc.m : some improvements in dealing with singleton dimension
186      (tested on all testreport mnc output files).
187    o genmake2: disable pkg/profiles if netcdf test fails.
188    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
189    o move call to cal_readparms up to make calendar parameters/variable available
190      to all packages
191    
192    checkpoint58v_post
193    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
194      useDynP_inEos_Zc tested.
195    o pkg/exf: changes to properly interpolate/mask/scale initial fields
196    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
197      and portions thereof.  See read_cs.txt for description and examples.
198    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
199      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
200      following the great-circle arc between those 2 points.
201    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
202      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
203    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
204     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
205     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
206     - still needs work (not working with some options ; efficiency to improve)
207       and serious testing.
208     - use this scheme for temperature & salinity in 2 advection test exp.:
209       advect_xy & advect_xz, respectively.
210    
211    checkpoint58u_post
212    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
213    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
214    o testreport: add option "-skipdir" to skip some test.
215    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
216      momentum calculation.
217    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
218    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
219      remove checkpoint.F and the_correction_step.F (no longer used);
220      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
221    o add option (linFSConserveTr) to correct for tracer source/sink due to
222      Linear Free surface
223    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
224    o pkg/thsice: fix reading mnc-pickups
225    
226    checkpoint58t_post
227    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
228    o pkg/mdsio:
229     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
230       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
231       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
232     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
233     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
234       either MDS_READ_FIELD or MDS_WRITE_FIELD )
235     - new S/R (to replace MDSWRITEMETA), which allows to write more
236       informations (variable names, time ...) to meta files.
237     - modify rdmds.m to give back the meta file content.
238    o pkg/diagnostics: change vertical interpolation to be safer, and more
239       flexible (define p-levels to interpolate to in data.diagnostics);
240      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
241       diagnostic pointer.
242    o pkg/seaice: more cleaning up of seaice_growth, added many comments
243    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
244    o fix multi-category seaice:
245     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
246       SEAICE_MULTICATEGORY
247     - fix short wave heat flux
248    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
249       and allow to use EVP solver. Change forward lab_sea: test both EVP
250       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
251    o Initial check-in of lab_sea adjoint
252      (very similar to natl_box_adjoint/code_seaice)
253      * used C-grid and EVP solver
254      * used KPP, GM/Redi
255      * uses inAdExact=.TRUE.
256      * gradient checks fail for both ADM and TLM
257        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
258        f.d. gradients actually seem more problematic than ADM, TLM gradients;
259        issue is related to forward mismatch between g77 an ifort
260    o pkg/seaice: overhaul of thermodynamics
261     - growth.F and groatb.F are replaced by new routine seaice_growth.F
262     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
263     - move a few global fields out of SEAICE.h into seaice_growth.F and
264       make them 2D (FICE/QNETO/ ...)
265     - remove FO (it is the same as QNETO)
266     - introduce a few local fields to avoid modifying external fields such
267       as atemp, etc.
268    
269    checkpoint58s_post
270    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
271      changed exf_set_gen.F so that
272        genperiod=0 means input file is one time-constant field and
273        genperiod=-12 means input file contains 12 monthly means
274    o CG2D: use pre-computed solver main-diagonal (stored in common block);
275      this affects truncation error ; generate new output file for exp. which
276      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
277        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
278        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
279        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
280        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
281        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
282    o start implementation of deep-atmosphere and anelastic formulation
283    o verification: remove 2nd copy of input files and use script "prepare_run"
284      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
285    o mom_common/vecinv/fluxform: fix a few initialisation isssues
286    o profiles: fix for multithreaded case
287    
288    o diagnostics: rename few diags:
289      s/'PRESSURE'/'RCENTER '/g
290      s/'TICE    '/'oceFreez'/g
291      s/'TAUX    '/'oceTAUX '/g
292      s/'TAUY    '/'oceTAUY '/g
293      s/'SWFLUX  '/'oceQsw  '/g
294      s/DIFx/DFxE/g
295      s/DIFy/DFyE/g
296      and add few ocean-forcing diagnostics:
297      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
298    o modifications to pkg/seaice/growth.F and budget.F, which change results of
299      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
300      as actual snow thickness.  It now refers everywhere to effective snow
301      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
302    
303    checkpoint58r_post
304    o modifications to pkg/seaice/growth.F, which change results of
305      lab_sea experiment: fixes pertain to melting snow over open water, to
306      masking EVAP under sea ice, and to using the correct AREA variable for
307      computations of EVAP, PRECIP, HSNOW, and GHEFF
308    o add ability to read bathy, salt, and theta using MNC (off by def)
309    o add flooding algorithm and advection of HSNOW for pkg/seaice;
310      both are turned off by default and do no change any results
311    o seaice advection with pkg/thsice: a step toward the use of non-linear
312      advection scheme, but #ifdef or commented out for now (requires more EXCH).
313    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
314      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
315      in natl_box (affects results @ truncation level: update output.txt)
316    o multi-threading and IO:
317      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
318      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
319        (needed to work with SingleCpuIO): tested in all verif. exp.
320    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
321      affects the results (but none of the verification test uses this scheme).
322    o Adding some pkg/diagnostics capability to pkg/seaice
323      (will certainly be subject to changes)
324    o ctrl: adding new control variables:
325      lwflux, lwdown, evap, snowprecip, apressure, runoff
326    
327    checkpoint58q_post
328    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
329      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
330      high_res_cube configuration by 4% on Columbia.
331    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
332      add (in global_with_exf/code) a version of EXF_INTERP_READ without
333      dynamical allocation (seems to work in multi-threaded).
334    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
335      single CPU io) so that TAF does not have to see EESUPPORT.h
336    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
337    
338    checkpoint58p_post
339    o obcs: stop if obcs is used with useCDscheme = .true.
340    o shelfice:
341     - fix a sign error so that no slip at shelfice interface works
342     - remove stop for combination non-hydrostatic code and shelfice. That does
343       not mean, that the results are correct, but at least they are numerically
344       stable
345    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
346    o added adjoint exch routined for all exch*3d* routines
347      and updated flow directives
348    
349    checkpoint58o_post
350    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
351      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
352    o change controling S/R for writing pickup file (new S/R do_write_pickup)
353      and clean-up reading/writing of pickup files.
354    o fix local version of read/write pickup (NH part) in rotating_tank/code
355    o simplify EXCH interface:
356     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
357     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
358    o added the regrid package
359    o shelfice:
360     - add a simple boundary layer scheme to reduce noise
361     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
362    
363    checkpoint58n_post
364    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
365       local variable (not in common block).
366    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
367      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
368      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
369        to work with SingleCpuIO.
370    o add "_d 0" to real constant of pkg/cfc subroutines ;
371       update exp. cfc_exemple & tutorial_cfc_offline output files.
372    o multi-threading and IO:
373      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
374        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
375      - barrier before and after reading.
376      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
377      - avoid using MDS_WRITELOCAL for LAND pkg output.
378      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
379        common-block variables ; Allows multi-threading with master-thread IO.
380    o change default MAX_NO_THREADS from 32 to 4 ;
381      and stop cleanly when MAX_NO_THREADS is too small.
382    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
383    
384    checkpoint58m_post
385    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
386       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
387    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
388       keep global_ocean.90x40x15 (for AD testing) with former secondary test
389       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
390    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
391        add MITgcm_tutorials (= code + all the tutorials)
392    o ecco, option to compute cost for total ssh (mean+anom)
393    o consistent with addition of ptracer and ssh in pkg/profiles
394    o profiles: adding ptracer and ssh
395    o testreport: change multi-test output-file name
396      (from output.txt.{name} to output.{name}.txt)
397    o profiles: now ok for mutli-tiles case
398    o seaice: add 4 parameters for different advection schemes for area,
399      (effective) seaice thickness, enthalphy, and snow height. Their default
400      is the standard parameter SEAICEadvScheme
401    o calc_gw:
402     - add cosFacU in zonal viscous flux (harmonic.visc.).
403     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
404       of tutorial_plume_on_slope.
405    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
406    o calc_gw: true flux-form, account for horizontal grid spacing.
407      update rotating_tank results, but not plume_on_slope (affected at
408      truncation level, 11 digits).
409    
410    checkpoint58l_post
411    o calc_gw:
412     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
413     - remove side-drag for now (need to fix it); update plume_on_slope results.
414     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
415    o commit code to make SST/SSS weights spatially variable
416      (based on either variable in-situ or variable initial T/S weights)
417    o pkg/ecco:
418      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
419        now based on horizontally varying weights wthetaLev, wsaltLev
420      * cost_averagesflags now returns year indices in addition to day, month
421      * sflux balance is performed on annual basis
422        (sflxumm, sfluxmm2, bal_sfluxmm)
423      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
424        including separate counting and multipliers
425    o pkg/rbcs
426      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
427    
428    checkpoint58k_post
429    o testreport:
430     - always build in dir. "build" (if not there, mkdir build instead of building
431       & running in input)
432     - run in dir run (if it exists), in build otherwise.
433     - call prepare_run (if input/prepare_run exists)
434     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
435    o pkg/exf modifications to interpolation and rotation routines for more
436       reasonable treatment of North Pole singularity: for tracers North Pole
437       value is set to northernmost zonal-mean value, for zonal velocity it is
438       set to zero, and for meridional velocity it is set to northernmost value.
439    o pkg/exf/exf_check_range.F
440     - add tile index to diagnostics and move stop statement to the very
441       end of the routine.
442    o pkg/diagnostics: (diagnostics_main_init.F)
443      define title of isomorphic variables according to the current config.
444    o pkg/thsice with pkg/seaice dynamics:
445    - fix domain of computation (interior only, required for exf) and do exchanges
446    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
447    o towards a standard way of dealing with multi-threading in MONITOR
448      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
449    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
450       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
451    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
452    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
453    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
454       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
455    o tracer advection:
456     - clean-up and simplify calc_common_factors.F
457     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
458       advection subroutine (but still not used within DST advection S/R)
459    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
460    
461    checkpoint58j_post
462    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
463      from file (collects calls previously in FORWARD_STEP)
464    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
465    o adjoint store dir. adjusted accordingly
466    o genmake2
467      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
468    
469    checkpoint58i_post
470    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
471      on wind stress (SEAICEstressFactor defaults to 1.)
472    o Total number of Timers is finite (<=40): comment out 2 non-essential one
473      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
474    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
475      on CS-grid: no longer loosing mass.
476    o exf & curvilinear-grid: no longer modify longitude xC & xG.
477    o pkg/ggl90: fix sloppy output and fix a bug
478    o pkg/seaice: added SEAICEuseEVPpickup parameter
479      - Set to false in order to start EVP solver with
480        non-EVP pickup files when using SEAICEuseEVP
481      - fix sign error in diffusion in seaice_calc_rhs
482    
483    checkpoint58h_post
484    * Modifications for bottom topography control
485      o replace hFacC by _hFacC at various places
486      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
487      o add non-self-adjoint cg2d_nsa
488      o update autodiff support routines
489      o re-initialise hfac after ctrl_depth_ini
490      o works for 5x5 box, doesnt work for global_ocean.90x40x15
491    * Adding verification for 5x5 box (4-layer) bottom topography control
492    
493    checkpoint58g_post
494    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
495       used for mean seasonal cycle, mean diurnal cycle); add an example
496       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
497    o pkg/ggl90:
498      - add parameter (minimum surface kinetic energy)
499      - fix bug (avoiding division by zero)
500    o couple pkg/thsice to pkg/seaice:
501      - modify advection in seaice to accomodate new scalar fields to be advected
502      - only muliDimAdection scheme work with seaice/thsice
503      - mapping of thsice-variables to seaice-variables, back and forth
504      - does not break the verification experiments, but does not give the
505        desired results either
506    o pkg/seaice
507      - make (default) second order advection a bit less confusing?
508    
509    checkpoint58f_post
510    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
511      to pkg/seaice):
512      - new routines thsice_map_exf and thsice_get_exf provide the interface
513      - add an additional formal parameter to thsice_solve4temp
514    o pkg/exf:
515      - add new fields wspeed, snowprecip (to be able to couple to thsice)
516      - correct Stefan-Boltzmann constant
517      - new parameter for longwave surface emittance
518      - separate some stuff from exf_bulkformulae into new routines  
519        exf_radiation, exf_wind
520      - add new parameters and constants: longwave emissivity for ocean, ice
521        and snow, evaporation parameters over ice
522      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
523        either wind from stress or stress from wind
524    o pkg/thSIce:
525    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
526    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
527       and THSICE_CALC_THICKN
528    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
529    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
530      to make debugging easier.
531    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
532    o pkg/bulk_force:
533      - clean-up comments and parameters ;
534      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
535    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
536      generate new output for test-experiment: aim.5l_cs.thSI
537    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
538      testreport accordingly
539    
540    checkpoint58e_post
541    o SEAICE_CGRID adjoint done
542    o R_STAR adjoint implemented.
543      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
544      * need to sort out init. of h0facc, etc.
545    o Make pkg/profile fully independent of ecco,cost, etc. stuff
546      to be able to use it in pure forward.
547    
548    checkpoint58d_post
549    o upgrade simple test-experiment to tutorial example:
550     step.1: duplicate the experiment and (step.2) will remove the old copy.
551      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
552      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
553      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
554      tutorial_global_oce_biogeo    <- copy of dic_example
555      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
556      tutorial_plume_on_slope       <- copy of plume_on_slope
557      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
558      tutorial_global_oce_optim     <- empty for now (David ?)
559      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
560     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
561    o correct a sign problem in cost_scat.F
562    o obcs and ptracers: fix boundary conditions for advections schemes
563      with larger stencil
564    o thsice adjoint: start
565    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
566      completeness
567    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
568      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
569    o ptracers adjoint:
570      * avoid extensive recomputatations
571      * fix missing re-init. of gptr (missed by TAF)
572    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
573      me to turn off the excessive output to STDOUT that this package produces
574    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
575      and add those terms in Vector-Invariant formulation.
576    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
577      if the control period (xx_hfluxperiod etc) is 0
578    o in profiles pkg, clean routines and fix details
579    o in ecco pkg, reading ssh data:
580      fix problem in case the model does not start at iter0=0
581    o fix mnc-pickup/restart for ptracers
582    o new package prifiles:
583      code to compute profile-based cost by Gael Forget
584      (modifs in ecco, ctrl, autodiff)
585    o Benign bug fix in initialization (spotted by M. Mazloff) of
586      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
587    
588    checkpoint58c_post
589    o adjoint: finish NLFS adjoint and provide reference output in
590      verification/global_ocean.90x40x15/results_ad_nlfs
591    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
592      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
593      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
594      with SEAICE_CGRID defined.
595    o move calendarDumps from "data" to "data.cal" and clean-up the code
596      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
597    o add useEXF & useCAL flags (for now, set in hard-coded way)
598    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
599      (were missing in NH mode, and wrong in quasihydrostatic mode).
600      waiting for Chris updated version of calc_gw to add those CALLs.
601    o fix bug in quasihydrostatic S/R ;
602      add a test for this option: global_ocean.90x40x15.qshyd
603    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
604      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
605    o add on/off flag useOffLine for package OFFLINE
606    o seaice:
607      - modify advection so that it works also on the C-grid
608      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
609        problem in multi-tile runs with C-grid
610      - add flags for clipping ice velocities and/or masking solver forcing
611      - fix drag (ocean on ice) formulation and a bug that caused noise in the
612        C-grid solver
613      - added a few comments to seaice_diffusion.F
614      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
615        are now exclusive)
616      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
617        required re-ordering the code a little:
618       + make DAIRN global variable (defined in SEAICE)
619       + move computation of the viscosities eta and zeta into a new separate
620         routine (because I need to recompute them in seaice_ocean_stress.F)
621    
622    checkpoint58b_post
623    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
624      update output.txt of exp. aim.5l_cs.thSI
625    o various mnc cleanups and improvements:
626      + shrink lookup tables by factor of ~4
627      + better error reporting when running out of lookup space
628      + able to handle longer path/file names (up to 500 chars)
629    o adjoint:
630      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
631      - TBD: "hidden" mom_vecinv recomp. in dynamics
632    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
633     (allow to differentiate between forcing components using new integer flags:
634      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
635     and add new flag to put Dissipation tendency out of Adams-Bashforth.
636    o ecco
637      - enable trend removal from SSH anomaly obs.
638    o adjoint
639      - a fix for PmEpR when #undef EXACT_CONSERV
640      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
641      - try to fix "hidden" recomp. in forward_step for NLFS
642        (NLFS seems broken sometimes after I checked it in)
643    o seaice:
644     - add c-grid version of the dynamic solver:
645       + three new routines that are the c-grid substitute lsr, dynsolver
646         and ostres
647       + put a few fields that were local to dynsolver into global common
648         blocks, so that I can move the computation of stresses etc into
649         seaice_lsr (saves coding but may break the adjoint).
650     - replace more hardwired parameters by runtime parameters
651     - add ice masks that mask the rhs of the implicit solvers where there
652       is no ice (commented out in seaice_dynsolver, because i am not sure
653       if this works properly), eventually this should replace the clipping
654       of ice velocities in seaice_dynsolver to +/-40cm/s.
655    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
656      include it only where its needed
657    o move balancing of fluxes before the call of external_forcing_surf
658    o seaice:
659      - correct units of turning angles (now they are really in degrees)
660      - move computation of GWATX/Y out of main routine into dynsolver
661      - initialize GWATX/Y in seaice_init
662    o Apply mask on Fresh-Water flux (needed for SSH forcing).
663      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
664    o seaice: add runtime flags for turning angles (default to zero)
665    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
666      and trend from exf forcing and ctrl control adjustments
667    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
668      (since checkpoint57x_post)
669    o change the default rotation period to 86164.s = the Earth rotation
670    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
671      and based on a reference stratification. Tested within hs94.cs-32x32x5.
672    o seaice advection: add code for choosing between the default (2nd order
673      central differences) and multiDim advection schemes provided by
674      pkg/generic_advdiff
675    o seaice:
676      - removed all references to SEAICE_GRID.h fields from
677        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
678        (cubed-sphere configuration will change a little)
679      - grid computations in seaice_init are obsolete now.
680      - cleaned up code a little so that is easier to read (hopefully).
681      - added new (better?) discretizations of default advection and diffusion
682        (turn on with SEAICEuseFluxForm)
683      - replace 1 in 3d global fields by kSurface in growth.F
684      
685    checkpoint58a_post
686    o seaice:
687      - bug fix in advect.F
688    o shelfice:
689      - separate shelfice load anomaly from pload (breaks with time
690        dependent forcing), => introduce constant field shelficeLoadAnomaly.
691        Its default is 0., but it may be computed more cleverly from (unknown)
692        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
693        done offline. A good approximation of the pressure load anomaly is
694        necessary to avoid large initial adjustment processes underneath
695        deep-reaching shelfice.
696      - small fix in ISOMIP shelfice_thermodynamics
697      - add more sophisticated thermodynamics of Hellmer (1989), this is
698        now the default
699      - give a few constants more intuitive names
700    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
701      if bulk formulae are used in long integration (especially EmPmR). Turn
702      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
703      if balancePrintMean, the imbalance that is substracted is printed to
704      STDOUT.
705    o fix bug (typo) in obcs_apply_eta.F
706    o add a new package shelfice which enables us to model the circulation
707      underneath shelf-ice with draughts of hundreds of meters.
708     - works
709     - to do: + include improved thermodynamics
710              + check whether kSurfC (from model/inc/SURFACE.h) can be used
711                instead of new field kTopC
712              + can we use topoFile, Ro_surf and existing code in ini_depth.F
713                instead of new field R_shelfIce and new code in ini_depth.F
714                and ini_mask_etc.F?
715              + adjust vertical mixing schemes?
716    o seaice pkg:
717     - add a cpp-flag to include a simple formula for a salinity dependent
718       freezing point of sea water at the surface
719     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
720       meridional stresses are now different (and hopefully correct)
721    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
722       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
723       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
724    o pkg/diagnostics: add options and parameters for regional-statistics
725       diagnostics ; define regions by reading a region-mask from a file
726       (might add other options later)
727    o pkg/bulk_force:
728     - add option and parameters to use AIM surface-flux formulae.
729     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
730       others forcing fields (defined in PARM05, parameter file "data") are loaded
731       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
732     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
733     - use the right EXCH call for uwind,vwind (to work on CS-grid).
734     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
735       and parameters (note: calcWindStress replaces .NOT.readwindstress).
736     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
737    
738    checkpoint58
739    o add "--embed-source" option to genmake2 which, when the supporting
740      tools can be compiled (as determined by genmake2) will turn on the
741      embed_files package which then embeds the entire MITgcm source code
742      (*.[fFhc] + Makefile) used for the build within the executable
743      - requested by CNH but off by default
744      - adds a paltry <9MB to the mitgcmuv executable in most cases
745      - only writes the output when useEMBEDSRC in eedata is true
746    o clean up 3-dim. relaxation codes:
747      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
748      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
749      * Thanks to Tom Haine for testing!
750    
751    checkpoint57z_post
752    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
753      affects output (@ truncation level) of exp. plume_on_slope ; updated.
754    o fix the pickup behavior for obcs in combination with ptracers
755    o fix a bug in ptracers_external_fields_load
756    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
757      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
758    o transfered surface NH pressure to eta field (if exactConserv).
759    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
760         and update lab_sea output.txt file.
761    o completing 3-dim. relaxation code: additional term
762         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
763      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
764      * At compile time, in "EXF_OPTIONS.h" set
765          #define  ALLOW_CLIMTEMP_RELAXATION
766          #define  ALLOW_CLIMSALT_RELAXATION
767      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
768          tauThetaClimRelax3Dim = 15552000.0,
769          tauSaltClimRelax3Dim  = 15552000.0,
770      * 3 cases:
771          1) Use a constant-in-time 3-dim. field
772          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
773          3) Real-time relax. to time-evolving prescribed field
774    o Adding Laplacian-type smoothness constraint on
775      initial and boundary (forcing) controls (ic, bc)
776      * enable at compile-time via
777        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
778      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
779      * Absolute scale somewhat unclear so far
780      * no area weighting was included since no other cost term does so far
781    
782    checkpoint57y_post
783    First step for a NLFS adjoint
784    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
785    o new init. routines for calc_r_star, calc_surf_dr
786    o still need to deal with ini_masks_etc
787    o testreport seemed happy
788    checkpoint57y_pre
789    
790    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
791    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
792    o add new offset feature to offline pkg (plus minor cleanup)
793    o cfc fixes for final year of integration
794    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
795      be in GCHEM_OPTIONS).
796    
797    checkpoint57x_post
798    o fix testreport Pb in multiple test experiment.
799    o cleanup our namelist syntax in verification:
800      - make it more F95 standards compliant (some work still needed)
801      - allows the vast majority of our tests to work with gfortran
802    o Non-Hydrostatic:
803     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
804     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
805    o Allow to apply AB on T,S rather than on AB(gT,gS):
806     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
807     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
808       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
809     - need a "clever" read_pickup to restart from the other AB formulation
810    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
811    o remove some unused variables (reduces number of compiler warnings)
812    o adjoint
813      * Disable useVariableViscosity for adjoint for time being
814        (there are a number of extensive recomputations)
815      * Initialize certain variables needed for adjoint
816    
817    checkpoint57w_post
818    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
819                 fix the singleCpuIO RS version of MDSWRITEFIELD
820       and add a WARNING if using globalFiles=T with multi-processors.
821    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
822      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
823    o tracer advection scheme:
824      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
825       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
826       was not very convenient).
827      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
828       (further tests needed for the implicit DST & Flux-Limiter schemes).
829    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
830      and sRef for convenience, handy, when you want to initialize
831      ptracers in a large domain with a constant non-zero value. Also,
832      untangle ptracers_init.F a little.
833    
834    checkpoint57v_post
835    o change dome exp. to use variable viscosity in side-drag terms.
836    o remove all the files from the cfc_offline test since they are now
837      incorporated into tutorial_cfc_offline which has been producing
838      identical results for a few days of testing
839    o add new parameter: sideDragFactor to enable half-slip-side BC
840      and change side-drag S/R to use viscosity from mom_calc_visc
841      (can switch back by setting sideDragFactor=0.); affects results at
842      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
843       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
844    o vorticity & strain are now computed without masking, to account for
845      no-slip-side BC in variable viscosity calculation ; mask is applied
846      anyway later on, before computing advection/coriolis terms.
847    o modify exp4 to test new obcs support for reading from external files
848      and for passive tracers
849    o fix behavior of ptracers_monitor when monitor output is written to a
850      netcdf-file; still not independent of monitor.F (writes in the same
851      file).
852    o change default value of tRef (put a uniform, meaningful value for ocean
853      & atmos) and initialize sRef (was missing, as Martin mentioned).
854    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
855      to be proportional to enstrophy dissipation length.  Thus,
856       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
857      This is now consistent with Smagorinsky and with the manual.
858    
859    checkpoint57u_post
860    o OBCS and PTRACERS: add open boundary support for passive tracers
861      - either use homogenous (pseudo) v.Neumann conditions or prescribe
862        OB-values from file; this is not different from the way theta and salinity
863        are treated
864      - however, Orlanski-radiation conditions are not supported, and the model
865        will stop if you use pTracers and Orlanski at the same time.
866      - beefed up the rountine obcs_external_fields_load: now only those open
867        boundary values are overwritten with values from files for which there
868        are really files, otherwise the OB-fields remain untouched. This makes
869        it possible to use different OBs at different ends of the domain (as
870        with EXF)
871    o reduce number of exch calls in shap_filt (s2).
872    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
873      truncation level) 4/5 MLAdjust test results (11&12 digits match).
874    
875    checkpoint57t_post
876    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
877    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
878      same truncation, independent of the face number: affects affects several
879      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
880    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
881      note that biharmonic viscosity + no-slip was not tested in any experiment.
882    o fix bug in non-linear free-surf side-drag ; generate new output for
883      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
884    o make mnc honor the writeBinaryPrec flag for most kinds of output
885    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
886    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
887      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
888    o add brackets in multi-terms sum to get same truncation, independent of
889      the face number (manage to get exactly same value of gU,gV at the cs-edge)
890      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
891    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
892      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
893      a maximum grid-scale Reynolds number.  Also, changes all length calculations
894      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
895      Suggested values of viscosity parameters found in mom_calc_visc.
896      Many new viscosity diagnostics available.
897    
898    checkpoint57s_post
899    o Add clearing-house for viscosity calculations, mom_calc_visc and
900      correct numerous bugs in LeithD and Smagorinsky discretizations.  
901      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
902      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
903      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
904      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
905      The Strain-Tension form is now called with useStrainTensonVisc=.true.
906      ViscAhStrain and viscAhTension are now retired.
907    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
908    o In response to JMC's bug report, genmake2 now ignores any soft-links
909      that it finds in the *current* directory when searching for files.
910      Soft-links found in any other source directories will still work as
911      they did before.
912    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
913      a C routine to unlimit the stack size
914    o mnc-ify pkg/aim snapshot vars
915    o mnc-ify pkg/land as requested by Daniel
916    o various changes to mnc including:
917      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
918      - output can now be grouped so that all files within a group
919          change the ITER portion of their names in lock-step together
920      - can now read ("global") PER-FACE (in addition to PER-TILE) files
921          and works with both EXCH1 and EXCH2 (but needs more testing)
922      - writing works for all verification test cases w/ g77 on Linux
923    
924    checkpoint57r_post
925    o make MNC variable initialization happen earlier
926    o add diagnostics for (almost) each term of the momentum Eq.
927    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
928    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
929    o remove MINIMAL_TAVE_OUTPUT option ;
930      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
931    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
932      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
933    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
934    o add time-dependent SST, SSS control
935    o cost terms in ecco/ modularized (new cost_generic.F)
936    o cost_averages routines are modularized (new cost_averagesgeneric.F)
937    o new infrastructure for seaice model vs. obs misfits in seaice/
938      * driver from the_main_loop.F is seaice_cost_driver.F
939      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
940      * gradient check in Exp. 6a of natl_box_adjoint/
941    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
942      (see README file)
943    
944    checkpoint57q_post
945    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
946    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
947      - bug was reported by Jean-Michel and Ian Fenty
948    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
949      update exp. cpl_aim+ocn output.
950    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
951      Needed for high-res. runs with large global files
952      to be able to limit tapelev size
953    o Changed some tests for adjoint:
954      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
955      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
956      * global_ocean.90x40x15/ back to default 3-level checkpointing
957    o Modifications to enable scripted COMMON to MODULE conversion
958      * verification/OpenAD/code/ has necessary scripts and description;
959      * converts, compiles and runs successfully;
960    
961    checkpoint57p_post
962    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
963    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
964      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
965    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
966    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
967      (was already the case for dissipation with mom_vecinv,
968       and also the case for grad.PhiHyd when staggered-timeStep)
969      This will allow to put dissipation out-off the AB time-stepping.
970     Unfortunately, affects truncation error. Update output of exp. that "fails"
971      (cg2d matching number) and leave the others for later: front_relax(10),
972      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
973      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
974    
975    checkpoint57o_post
976    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
977      (2) its ready to be documented during the 20050801 DocFest
978    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
979      for ideal_2D_oce and lab_sea on linux_ia32_g77
980    o set to #undef CTRL_SET_OLD_MAXCVARS_30
981      in global1x1_tot/code_seaice_adj to access indices 32, 33
982      (worth another tag)
983    
984    checkpoint57n_post
985    o adding precip control xx_precip 32
986    o adding swflux control xx_swflux 33
987    o Replacing 10 forcing penalty cost routines by 1 generic.
988    o Implementing partitioning in time-mean and variable adjustment
989      for atmos. state.
990    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
991    o in natl_box_adjoint:
992      * updated exp 1 to 10
993        (but does not have time-mean vs. variable split results yet)
994    o updated global1x1/*_seaice_adj/
995      to incorporate latest changes
996    o enable useSingleCpuIO for mdsio vector routines
997      (applies in particular to tapelev I/O)
998    o removed inefficient K-loop in all active_file*control*.F
999    
1000    checkpoint57m_post
1001    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1002      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1003    o pkg/exch2: filling of face-corner halo regions is optional
1004      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1005    
1006    checkpoint57l_post
1007     tag before updating tutorials (pre-release-2)
1008    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1009       for output and interpolation of input fields onto model grid)
1010    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1011       Affects results of exp. rotating_tank ; update output.txt.
1012    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1013          and taking the square quantity and/or using a fraction-weight field.
1014    o fix aim_diagnostics_init.F mate numbers.
1015    o add mnc output capability to diagnostics/diagstat and update
1016      our cvsignore files for the ACSII output generated
1017    
1018    checkpoint57k_post
1019    o lab_sea now uses diagnostics package and provides a suite of
1020      new EXF diagnostics output.
1021    
1022    checkpoint57j_post
1023    o exf
1024      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1025        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1026        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1027      * extended diagnostics output
1028        - now includes all EXF variables
1029        - hs, hl moved to common block
1030        - separate S/R for diagnostics, called after ctrl vector is added
1031        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1032        - EXFqnet contains true Qnet (i.e. includes qsw)
1033      * updated verif. lab_sea, global_with_exf
1034      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1035        to ensure that diagnostics sees a true EXFqnet
1036    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1037    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1038      several times with different frequencies.
1039    o mnc-ify the thsice package as requested by Daniel Enderton
1040      - the monitor--MNC output needs work
1041      - many attributes need to be added (most are currently blank)
1042    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1043      - many attributes need to be added (most are currently blank)
1044    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1045    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1046    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1047      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1048         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1049    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1050     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1051    
1052    checkpoint57i_post
1053    o Diagnostics package was changed: diagnostic allocation is now deactivated
1054      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1055    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1056      add 1rst Order upwind vertical Shear.
1057    o add a quick fix for A/B checkpointing in OFFLINE mode
1058    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1059      end-run around the C/Fortran linking horror in eesup/src/timers.F
1060    o added pkg/runclock: allows user to terminate run based on wall clock
1061    o added non-hydrostatic scaling parameter: nh_am2
1062    o pkg/my82: futile attempt to make results compiler-independent by adding
1063      some "_d 0", etc. no effect.
1064    o for mnc output, fill the 'T' coordinate var with myTime and create a
1065      separate 'iter' variable for iteration count
1066    o pkg/diagnostics:
1067      add new capability: output of Global/Regional & per-level statistics ;
1068      tested against monitor output (including land & thSIce) on various exp.
1069    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1070    
1071    checkpoint57h_done
1072      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1073      data.diagnostics, data.gchem, data.ptracers) is done.
1074    
1075    o pkg/diagnostics: prepare for Global/Regional statistics.
1076      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1077    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1078      and rename it: DIFFERENT_MULTIPLE
1079    
1080    checkpoint57h_post
1081    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1082    o pkg/diagnostics: change output frequency, now in seconds (instead
1083      of Nb of iterations). This requires to change data.diagnostics.
1084    checkpoint57h_pre
1085    
1086    o in mnc, let the user create the output dir if both mnc_outdir_date
1087      and mnc_outdir_num are false
1088    o add fflags() to pkg/diagnostics which allows one to specify, on a
1089      per-file basis, the file precision [default behavior is unchanged]
1090    o added diagnostics to pkg/kpp, including computation of mixed layer
1091      depth based on a temperature/density criterion
1092    o updated verification/natl_box to test the new pkg/kpp diagnostics
1093    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1094    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1095    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1096      not mnc -- this mistake was found by JMC and is now corrected
1097    
1098    checkpoint57g_post
1099    o add Adams-Bashforth 3rd Order time stepping:
1100      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1101      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1102    checkpoint57g_pre
1103    
1104    o make lambda[Theta,Salt]ClimRelax spatially varying
1105      (default remains spatially uniform constant based on tau)
1106    o added new control variables
1107      * init. uVel, vVel, etanN
1108      * lambda[Theta,Salt]ClimRelax
1109    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1110      (suggested by G. Forget)
1111    
1112    checkpoint57f_post
1113    o add parameter "baseTime" = model base time = time at iteration zero
1114      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1115      account for baseTime shift
1116    o move Coriolis arrays from PARAMS.h to GRID.h
1117    checkpoint57f_pre
1118    
1119    o mnc-ifying the seaice package
1120    o introduced an alternative length scale calculation for use in the limiting
1121      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1122    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1123    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1124      as well as grad(vort3).  Made it compatible with both approximate form
1125      for the cubed sphere and full form of these gradients.  Added flag
1126      useFullLeith to select between approximate and full form.  
1127    o add "d0" in getcon.F to reduce differences between compilers/platforms
1128      update output.txt of exp. fizhi-gridalt-hs
1129    o change port_rand funtion to allow to set the seed.
1130    o fix obscure MNC bug involving conversion between reals and integers
1131      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1132        new version is now more standards-compliant
1133    o adjoint-related modifications
1134      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1135      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1136      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1137    
1138    checkpoint57e_post
1139    o Adding eddy stress controls a la Ferreira et al.
1140    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1141    
1142    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1143      update output.txt of exp. fizhi-gridalt-hs
1144    o add more "Z" dimensions and associated coordinate vars to MNC
1145    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1146    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1147      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1148      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1149      months and years.  Requires pkg/cal.
1150    o diagnostics: add pickup functionality
1151      - off by default for backwards compatibility
1152      - current version only uses MDSIO -- MNC will be added
1153    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1154    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1155    
1156    checkpoint57d_post
1157    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1158    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1159      output from the diagnostics package
1160    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1161    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1162      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1163    o add coordinate variables to the MNC output from the diagnostics package
1164    o change MNC-flags default value: true when useMNC=TRUE
1165    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1166      the ability (off by default) to read the grid information using MNC
1167    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1168    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1169    o do snap-shot diagnostics at the middle of the time-interval (instead of
1170      at the end).
1171    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1172      new test for AIM with thSIce + slab-ocean
1173    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1174    o move state variable diagnostics to the beginning of the time step ;
1175      (note: still needs some work specially for snap-shot diagnostics)
1176      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1177    
1178    checkpoint57c_post
1179    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1180    o generate new output.txt files on faulks with g77 & the new -ieee option
1181    checkpoint57c_pre
1182    
1183    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1184      update output.txt of exp. global_ocean.90x40x15
1185    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1186      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1187    o add saltFlux(+File) forcing capability with periodicExternalForcing
1188    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1189    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1190    o improvements for the MNC output from DIAGNOSTICS:
1191      - correct handling of the unlimitied dimension
1192      - all dims now have associated coordinate variables
1193      - variables located at U, V, and Corner ("Z") points are now written
1194        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1195        *all* data points are output
1196    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1197    o added pkg/seaice/seaice_monitor.F
1198    o mdsio_readfield.F can now read files visible only to master MPI process.
1199    o pkg/seaice: some test code for ice-modified ocean stress
1200    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1201      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1202      spurious negative numbers for precipitation and humidity.  Will cause
1203      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1204    o pkg/ctrl/
1205      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1206        May be enabled via doPackDiag
1207      *  introduce z-scaling of
1208         + gradient (doZscalePack) and
1209         + control (doZscaleUnpack)
1210    o pkg/mdsio/
1211      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1212      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1213    
1214    checkpoint57b_post
1215    o simplify options in diagnostics_fill arguments (remove weird combinations)
1216    o fix MNC coordinate variables so that they now contain per-face index
1217      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1218      general, EXCH2 grids are only aligned to a "local" coordinate system
1219    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1220    o Implement instantaneous output within pkg diagnostics:
1221      setting a negative frequency in data.diagnostics produces
1222     "snap-shot" output (as opposed to time-average if freq > 0)
1223    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1224      NOTE: change ptracer diagnostics name: use 2 characters to work with
1225            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1226    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1227      becomes the coordinate variable for the 'T' dimension
1228    o add CF-style coordinate variables to MNC
1229      - just a first cut:  numbers are meaningless on the cubesphere and
1230        missing along the T axis but otherwise it works!
1231    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1232    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1233    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1234      this is based directly on what the model compute, so that the content of
1235      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1236    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1237    o clean up build options files for SunOS, in particular
1238      - remove -traditional from xmakedepend
1239      - change -xarch=v9 to -xarch=native for f77
1240      - restore use of make (not gmake)
1241      - add CC=gcc if using g77
1242    o changes per discussion of AM, JMC, & EH3 today:
1243      - move redundant "grid" variables out of "state" -- in preparation of
1244        creating proper CF-style coordinate variables and in recognition
1245        that any/all grid variables can be easily copied (eg. w/NCO) from
1246        the grid files into any of the other NetCDF files
1247      - *always* output grid variables with MDSIO (this will eventually be
1248        changed)
1249      - output MNC grid file if useMNC is true
1250    o every instance of _END_MASTER() has been found and replaced with
1251      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1252      preprocessors
1253    o re-arrange diagnostics pkg initialisation:
1254     - allow each package to extend the available diagnostics list
1255     - add some checking and fix small problems (multi-threaded, ...)
1256     - new S/R diagnostics_fill (replace fill_diagnostics):
1257       look through the short list of active diag. (instead of the long list)
1258       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1259    
1260    checkpoint57a_post
1261    o this set of changes restores TAMC compatibility
1262      tested for global_ocean.90x40x15 adjoint on trough
1263      (what a pain)
1264    
1265    checkpoint57a_pre
1266    o some modifs in tools/build_options for sunos
1267    o call ctrl_pack for ctrl at end for optimcycle=0
1268    
1269    checkpoint57
1270    o add horizontal bi-harmonic viscosity for vertical velocity
1271      - new parameter viscA4W (defaults to viscA4)
1272      - affects only non-hydrostatic code
1273      - to be done: no-slip lateral boundary conditions
1274    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1275    o implement Implicit Vertical advection for pTracers
1276    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1277      (implemented also for implicit vertical diffusion & advection)
1278    o OBCS: extend application of tracer open boundary conditions
1279      to a strip beyond the boundary of width Olx/Oly
1280    o add call monitor to TAF set of required calls (flow directives)
1281      and include in natl_box_adjoint
1282    o untangle a few ifdefs related to cost, ctrl, autodiff
1283      untangel a few ALLOW_ECCO_OPTIMIZATION
1284    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1285      (theta2, salt2 in ecco_cost_weights)
1286    
1287    checkpoint56c_post
1288    o OBCS as control variables
1289      - update ctrl_ad_diff.list, obcs_ad_diff.list
1290      - remove balance of obcs controls from default
1291      - fix index bug nobcs in ctrl_init
1292      - fix dummy fields filen in ctrl_pack
1293      - add dummy weights for obcs
1294    o lsopt: comment out fort.94 output
1295    o optim:
1296      - remove unnecessary header files
1297      - adjusted namelists
1298      - add xerbla.F to Makefile
1299    o exf:
1300      - multiple modifications of exf_check_range
1301      - unit change in exf_init_runoff from [m/year] to [m/s]
1302    o mdsio:
1303      - i/o-vector change debugLevel from debLevA to debLevB
1304    
1305    checkpoint56b_post
1306    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1307      is called from DO_THE_MODEL_IO
1308      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1309      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1310      - clean up PTRACERS_WRITE_TIMEAVE a little
1311    o add another verification experiment that tests both the cfc-pkg and
1312      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1313      reactive tendencies treated inline with regular timestepping
1314    o testreport previously did a lousy job of comparing small numbers, so
1315      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1316      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1317      testreport.
1318    o ptracers_monitor: bug fix for MPI
1319    
1320    checkpoint56a_post
1321    o GCHEM: finish reorganizating the package
1322      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1323        (introduces another 3D-array for each passive tracer, but only if
1324        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1325        gchemTendency is not needed because the timestep is done separately)
1326      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1327      - GCHEM is now---more or less cleanly---separate from PTRACERS
1328      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1329        so clear to me how that should be done in a general way.
1330    o CFC: improve formatting of output in CFC_ATMOS
1331    o PTRACERS:
1332      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1333        that ALL experiments with ptracers enable can be checked. This makes
1334        GCHEM_MONITOR obsolete.
1335      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1336        monitorFreq
1337      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1338    o add PTRACERS (PTR0[1-5]) to testreport output
1339    o exf_check_range:
1340      * default changed to .TRUE.
1341      * will check values for niter0 if debLevA, every timestep if debLevB
1342      * STOP in exf_check_range if 'out of range'
1343      * range chosen generous to allow for potential extema
1344      TBD: a version with stricter range
1345           permitted range would be runtime parameters
1346  o GMredi:  o GMredi:
1347    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1348    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1351  o GCHEM:
1351    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1352      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1353    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1354      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1355        this flag is now only visible within GCHEM-pkg routines.
1356      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1357        be replaced by a 3D array that is computed before thermodynamics; for
1358        this, the tracer ID iTracer had to be included into the parameter list
1359        of ptracers_forcing
1360      - set up forward_step to call gchem_forcing, that will replace
1361        gchem_forcing_int in ptracers_forcing
1362      - cleaning up
1363  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1364    
1365  checkpoint56  checkpoint56

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