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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.831 by mlosch, Tue Jun 5 16:01:45 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/seaice:
8     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
9     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
10       It is turned off by default (=-1.), because it changes the results.
11     - make it possible to read AREA from a file, too.
12    
13    checkpoint59c
14    o add S/R and diagnostics for oceanic mixed-layer depth
15    o move GMRedi call after all vertical mixing schemes (including KPP)
16    o pkg/thsice:
17     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
18      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
19    o pkg/obcs:
20     - bug fix for balance code
21    o pkg/seaice:
22      - allow values of SEAICE_elasticParm > 1
23      - add new parameter SEAICE_evpTauRelax as an alternative
24        to SEAICE_elasticParm
25      - make lsr boundary conditions free slip (by default), changes result
26      - add code for no slip boundary conditions for lsr
27      - set minimum of zeta to zero (and not 4e8) (changes results)
28      - add a cap on AREA after advecting AREA if seaice_growth is not called
29    o change calculation of Visbeck K:
30      - no longer depend on tapering scheme; instead, compute slope (limited
31        by GM_maxSlope). this is equivalent to what was comuted before with
32        clipping or linear tappering.
33      - fix vertical averaging (wrong by 1/2 level)
34      - leave the old version (but will not be maintained) within
35        #ifdef OLD_VISBECK_CALC / #endif
36      - update output of exp. ideal_2D_oce
37    o change error catch in calc_r_star to improve vectorization
38    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
39      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
40    o adjoint:
41      Re-organized adjoint checkpointing according to Matt Mazloff
42      (but with modifs/completions/cleanups)
43      Storing is now bundled into large arrays to optimized I/O
44      (and second step in cleanup of the_main_loop)
45    
46    checkpoint59b
47    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
48      - export/import (between ocean & coupler) fields needed for ocean DIC.
49    o pkg/seaice:
50      - get rid of three more exchanges seaice_calc_viscosities (required
51        different loop boundaries in seaice_lsr and seaice_ocean_stress)
52      - bug fix in seaice_ocean_stress (update of lab_sea required)
53      - reduce loop boundaries to necessary minimum also in seaice_evp
54      - go back to the old way of computing deltaC/Z as the adjoint likes that
55        better
56    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
57      passive tracer to an Age Tracer) + update output.txt
58    o pkg/exf:
59      - implement A-grid / C-grid selection for wind-stress input files.
60      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
61      for now, in exf_bulk_largeyeager04.F only :
62      - change implementation for case where windspeed + 2. components wind-stress
63        are read-in. AND use rhoConstFresh to convert evap.
64    o pkg/seaice:
65      - use correct EXCH_UV for wind-forcing (on A-grid).
66      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
67        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
68    o pkg/exf:
69      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
70      EXF_INTERPOLATION:
71      - merge global_with_exf/code version of exf_interp_read.F
72        to the main code ;
73      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
74        reading the file ; Important: This options needs to be defined to recover
75        previous code.
76        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
77      - no longer loose real*8 precision along the way when using exf_iprec=64.
78    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
79      - change discretisation of evp-solver in order to avoid another exchange
80        (changes lab_sea) and clean up a little
81      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
82        help the adjoint (this also changes the results slightly)
83      - add a few "_d 0" where they had been missing in seaice_evp.F
84      - cleaning up: remove unused seaice_calc_rhs.F
85    o pkg/exf: some cleaning-up:
86      - change various "constants" into runtime parameters
87      - cleaned-up Large&Yeager04 routine which should eventually
88        replace exf_bulkformulae.F (changed names of S/R and CPP)
89        and merged various ALLOW_ATM_WIND options
90     only used with thsice pkg (in thsice_get_exf.F):
91      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
92        which are used when useStabilityFct_overIce=TRUE (= the default)
93      - change default values of ice & snow emissivity and scale downward LW
94        by ice & snow emissivity.
95    o pkg/thsice:
96     fix few little problems, in thsice_calc_thickn.F:
97      - growth vertically (and not laterally) if iceFrac == iceMaskMax
98      - melt only laterally if hIce < hThinIce (as the comments say)
99      and in thsice_extend.F:
100      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
101      - start to form ice as soon as the minimum ice-volume is reachable.
102     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
103      and cpl_aim+ocn
104    o pkg/kpp
105     - move computation of surface related input fields to KPP into a new
106       subroutine kpp_forcing_surf.F
107     - remove wrong (within bi,bj loops) EXCH calls.
108     - little cleaning (add argument myThid in last position, cvs header ...)
109     - for now, fix conservation problem by exchanging KPPviscAz (may not
110       be the best fix)
111    o pkg/seaice
112     - check for inconsistent evp parameter/cpp-flag combination
113     - remove leftover errIO flat for obsolete name list error handling
114    o OpenAD
115     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
116    
117    checkpoint59a
118    o pkg/seaice: some parameter clarifications and a little bit of clean up
119    o pkg/thsice: rename run-time parameters:
120       himin       -> hIceMin
121       himin0      -> hThinIce
122       hihig       -> hThickIce
123       i0          -> i0swFrac
124       transCoef   -> bMeltCoef
125       frac_energy -> fracMelting
126      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
127       with default values (for now) that do not change the results.
128      remove old version of thsice vars advection in pkg/seaice.
129    o in FFIELDS.h:
130      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
131      - make pLoad & sIceLoad always available (but still only used if
132         ATMOSPHERIC_LOADING is #define).
133    o pkg/kpp: replaced _KPP_RL with _RL
134    o bug fixes for vertical diffusivity computations when both KPP and
135        3D diffusivity arrays are used.
136    o pkg/seaice: fix bug in evp solver, while doing that
137      - change (improve?) discretization of stress computations for both
138        cgrid-lsr and evp solver
139      - add a new routine to compute strain rates
140      - the above changes lab_sea results
141      - add no slip conditions for evp solver (off by default), lsr-version
142        may follow
143      - fix exchange for shear at Z-points (does not change lab_sea)
144      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
145        (to force the user to pick a time step since there is not "safe" way
146        of choosing it)
147      - add principal stress diagnostics
148      - rearrange fields for evp a little to avoid having to call a: too many
149        exchanges and b: exchanges for stress trensor components which we do
150        not have.
151      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
152        of evp, complete rewrite for lsr case (latter is does not yet work
153        in all cases)
154    o pkg/kpp: add code to have mixing in shelf ice caverns
155      - add myThid to all kpp routines (long overdue)
156    
157    checkpoint59
158    o pkg/exf:
159      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
160        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
161      - move exf header files from lower_case.h to UPPER_CASE.h ;
162        add missing cvs Header & Name
163      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
164      - add namelist param. selectStressGridPosition, exf_monFreq
165      - retire many _CLIM routines, and remove data.exf_clim
166        + params moved to data.exf
167        + climsst, climsss now handled by exf_set_gen, i.e.
168          climss?period=0 refers to constant field,
169          climss?period=-12 to monthly forcing
170      - split up namelists in data.exf
171    o pkg/seaice:
172      - remove seaice_exch and seaice_exch_uv
173      - remove superfluous exchange of theta
174      - add myThid to seaice_budget_ocean/ice
175      - add new interface for atmospheric wind forcing (C-grid only)
176        + new routine
177        + two new field (taux, tauy for stress over ice)
178        + removed one global field (DAIRN) for C-grid case only
179    o pkg/thsise
180      - 2nd set of modifs for thsice adjoint in conjunction with exf
181    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
182    
183    checkpoint58y_post
184    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
185      vertical diffusivity, similar to that in MOM4; turned on using
186      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
187      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
188    o Added capability for 3D specification of background vertical diffusion
189      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
190      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
191      "data" file that contains the 3D vertical diffusivity coefficients.
192    o ice dynamics (pkg/seaice) with thsice thermodynamics:
193      - add code within pkg thsice to advect & diffuse sea-ice fields
194      similar to (and will replace) what has been added in  seaice_advdiff.F,
195      but: - conserving Mass, Heat & Salt.
196           - better when using non-linear advection scheme (not yet fully tested)
197           - can also be used in atmospheric set-up (for now, only the diffusion).
198    
199    checkpoint58x_post
200    o IO option for global-file compact format:
201      - add options when generating topology (utils/exch2/matlab-topology-generator)
202      - add I/O capability (pkg/mdsio).
203      - adapt utils/matlab/rdmds.m to read this format.
204      for now long-line format not yet supported by pkg/mdsio (& exch2).
205    o shelfice: add a few diagnostics
206    
207    checkpoint58w_post
208    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
209      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
210      (and replace horiVertRatio in NH code).
211      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
212                         and tutorial_plume_on_slope (sensitive to truncation)
213    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
214      directly to drive seaice model (C-grid only)
215    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
216     - reintroduce computation of wind from stress,
217     - compute tau (in exf_bulkformulae.F) from windstress averaged to
218       mass points to avoid tau = 0
219     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
220    o rdmnc.m: make it work with "global" files created with gluemnc
221    o rdmnc.m : some improvements in dealing with singleton dimension
222      (tested on all testreport mnc output files).
223    o genmake2: disable pkg/profiles if netcdf test fails.
224    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
225    o move call to cal_readparms up to make calendar parameters/variable available
226      to all packages
227    
228    checkpoint58v_post
229    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
230      useDynP_inEos_Zc tested.
231    o pkg/exf: changes to properly interpolate/mask/scale initial fields
232    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
233      and portions thereof.  See read_cs.txt for description and examples.
234    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
235      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
236      following the great-circle arc between those 2 points.
237    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
238      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
239    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
240     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
241     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
242     - still needs work (not working with some options ; efficiency to improve)
243       and serious testing.
244     - use this scheme for temperature & salinity in 2 advection test exp.:
245       advect_xy & advect_xz, respectively.
246    
247    checkpoint58u_post
248    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
249    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
250    o testreport: add option "-skipdir" to skip some test.
251    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
252      momentum calculation.
253    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
254    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
255      remove checkpoint.F and the_correction_step.F (no longer used);
256      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
257    o add option (linFSConserveTr) to correct for tracer source/sink due to
258      Linear Free surface
259    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
260    o pkg/thsice: fix reading mnc-pickups
261    
262    checkpoint58t_post
263    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
264    o pkg/mdsio:
265     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
266       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
267       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
268     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
269     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
270       either MDS_READ_FIELD or MDS_WRITE_FIELD )
271     - new S/R (to replace MDSWRITEMETA), which allows to write more
272       informations (variable names, time ...) to meta files.
273     - modify rdmds.m to give back the meta file content.
274    o pkg/diagnostics: change vertical interpolation to be safer, and more
275       flexible (define p-levels to interpolate to in data.diagnostics);
276      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
277       diagnostic pointer.
278    o pkg/seaice: more cleaning up of seaice_growth, added many comments
279    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
280    o fix multi-category seaice:
281     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
282       SEAICE_MULTICATEGORY
283     - fix short wave heat flux
284    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
285       and allow to use EVP solver. Change forward lab_sea: test both EVP
286       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
287    o Initial check-in of lab_sea adjoint
288      (very similar to natl_box_adjoint/code_seaice)
289      * used C-grid and EVP solver
290      * used KPP, GM/Redi
291      * uses inAdExact=.TRUE.
292      * gradient checks fail for both ADM and TLM
293        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
294        f.d. gradients actually seem more problematic than ADM, TLM gradients;
295        issue is related to forward mismatch between g77 an ifort
296    o pkg/seaice: overhaul of thermodynamics
297     - growth.F and groatb.F are replaced by new routine seaice_growth.F
298     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
299     - move a few global fields out of SEAICE.h into seaice_growth.F and
300       make them 2D (FICE/QNETO/ ...)
301     - remove FO (it is the same as QNETO)
302     - introduce a few local fields to avoid modifying external fields such
303       as atemp, etc.
304    
305    checkpoint58s_post
306    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
307      changed exf_set_gen.F so that
308        genperiod=0 means input file is one time-constant field and
309        genperiod=-12 means input file contains 12 monthly means
310    o CG2D: use pre-computed solver main-diagonal (stored in common block);
311      this affects truncation error ; generate new output file for exp. which
312      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
313        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
314        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
315        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
316        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
317        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
318    o start implementation of deep-atmosphere and anelastic formulation
319    o verification: remove 2nd copy of input files and use script "prepare_run"
320      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
321    o mom_common/vecinv/fluxform: fix a few initialisation isssues
322    o profiles: fix for multithreaded case
323    
324    o diagnostics: rename few diags:
325      s/'PRESSURE'/'RCENTER '/g
326      s/'TICE    '/'oceFreez'/g
327      s/'TAUX    '/'oceTAUX '/g
328      s/'TAUY    '/'oceTAUY '/g
329      s/'SWFLUX  '/'oceQsw  '/g
330      s/DIFx/DFxE/g
331      s/DIFy/DFyE/g
332      and add few ocean-forcing diagnostics:
333      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
334    o modifications to pkg/seaice/growth.F and budget.F, which change results of
335      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
336      as actual snow thickness.  It now refers everywhere to effective snow
337      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
338    
339    checkpoint58r_post
340    o modifications to pkg/seaice/growth.F, which change results of
341      lab_sea experiment: fixes pertain to melting snow over open water, to
342      masking EVAP under sea ice, and to using the correct AREA variable for
343      computations of EVAP, PRECIP, HSNOW, and GHEFF
344    o add ability to read bathy, salt, and theta using MNC (off by def)
345    o add flooding algorithm and advection of HSNOW for pkg/seaice;
346      both are turned off by default and do no change any results
347    o seaice advection with pkg/thsice: a step toward the use of non-linear
348      advection scheme, but #ifdef or commented out for now (requires more EXCH).
349    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
350      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
351      in natl_box (affects results @ truncation level: update output.txt)
352    o multi-threading and IO:
353      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
354      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
355        (needed to work with SingleCpuIO): tested in all verif. exp.
356    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
357      affects the results (but none of the verification test uses this scheme).
358    o Adding some pkg/diagnostics capability to pkg/seaice
359      (will certainly be subject to changes)
360    o ctrl: adding new control variables:
361      lwflux, lwdown, evap, snowprecip, apressure, runoff
362    
363    checkpoint58q_post
364    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
365      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
366      high_res_cube configuration by 4% on Columbia.
367    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
368      add (in global_with_exf/code) a version of EXF_INTERP_READ without
369      dynamical allocation (seems to work in multi-threaded).
370    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
371      single CPU io) so that TAF does not have to see EESUPPORT.h
372    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
373    
374    checkpoint58p_post
375    o obcs: stop if obcs is used with useCDscheme = .true.
376    o shelfice:
377     - fix a sign error so that no slip at shelfice interface works
378     - remove stop for combination non-hydrostatic code and shelfice. That does
379       not mean, that the results are correct, but at least they are numerically
380       stable
381    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
382    o added adjoint exch routined for all exch*3d* routines
383      and updated flow directives
384    
385    checkpoint58o_post
386    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
387      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
388    o change controling S/R for writing pickup file (new S/R do_write_pickup)
389      and clean-up reading/writing of pickup files.
390    o fix local version of read/write pickup (NH part) in rotating_tank/code
391    o simplify EXCH interface:
392     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
393     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
394    o added the regrid package
395    o shelfice:
396     - add a simple boundary layer scheme to reduce noise
397     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
398    
399    checkpoint58n_post
400    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
401       local variable (not in common block).
402    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
403      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
404      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
405        to work with SingleCpuIO.
406    o add "_d 0" to real constant of pkg/cfc subroutines ;
407       update exp. cfc_exemple & tutorial_cfc_offline output files.
408    o multi-threading and IO:
409      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
410        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
411      - barrier before and after reading.
412      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
413      - avoid using MDS_WRITELOCAL for LAND pkg output.
414      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
415        common-block variables ; Allows multi-threading with master-thread IO.
416    o change default MAX_NO_THREADS from 32 to 4 ;
417      and stop cleanly when MAX_NO_THREADS is too small.
418    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
419    
420    checkpoint58m_post
421    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
422       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
423    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
424       keep global_ocean.90x40x15 (for AD testing) with former secondary test
425       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
426    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
427        add MITgcm_tutorials (= code + all the tutorials)
428    o ecco, option to compute cost for total ssh (mean+anom)
429    o consistent with addition of ptracer and ssh in pkg/profiles
430    o profiles: adding ptracer and ssh
431    o testreport: change multi-test output-file name
432      (from output.txt.{name} to output.{name}.txt)
433    o profiles: now ok for mutli-tiles case
434    o seaice: add 4 parameters for different advection schemes for area,
435      (effective) seaice thickness, enthalphy, and snow height. Their default
436      is the standard parameter SEAICEadvScheme
437    o calc_gw:
438     - add cosFacU in zonal viscous flux (harmonic.visc.).
439     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
440       of tutorial_plume_on_slope.
441    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
442    o calc_gw: true flux-form, account for horizontal grid spacing.
443      update rotating_tank results, but not plume_on_slope (affected at
444      truncation level, 11 digits).
445    
446    checkpoint58l_post
447    o calc_gw:
448     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
449     - remove side-drag for now (need to fix it); update plume_on_slope results.
450     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
451    o commit code to make SST/SSS weights spatially variable
452      (based on either variable in-situ or variable initial T/S weights)
453    o pkg/ecco:
454      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
455        now based on horizontally varying weights wthetaLev, wsaltLev
456      * cost_averagesflags now returns year indices in addition to day, month
457      * sflux balance is performed on annual basis
458        (sflxumm, sfluxmm2, bal_sfluxmm)
459      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
460        including separate counting and multipliers
461    o pkg/rbcs
462      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
463    
464    checkpoint58k_post
465    o testreport:
466     - always build in dir. "build" (if not there, mkdir build instead of building
467       & running in input)
468     - run in dir run (if it exists), in build otherwise.
469     - call prepare_run (if input/prepare_run exists)
470     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
471    o pkg/exf modifications to interpolation and rotation routines for more
472       reasonable treatment of North Pole singularity: for tracers North Pole
473       value is set to northernmost zonal-mean value, for zonal velocity it is
474       set to zero, and for meridional velocity it is set to northernmost value.
475    o pkg/exf/exf_check_range.F
476     - add tile index to diagnostics and move stop statement to the very
477       end of the routine.
478    o pkg/diagnostics: (diagnostics_main_init.F)
479      define title of isomorphic variables according to the current config.
480    o pkg/thsice with pkg/seaice dynamics:
481    - fix domain of computation (interior only, required for exf) and do exchanges
482    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
483    o towards a standard way of dealing with multi-threading in MONITOR
484      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
485    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
486       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
487    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
488    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
489    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
490       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
491    o tracer advection:
492     - clean-up and simplify calc_common_factors.F
493     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
494       advection subroutine (but still not used within DST advection S/R)
495    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
496    
497    checkpoint58j_post
498    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
499      from file (collects calls previously in FORWARD_STEP)
500    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
501    o adjoint store dir. adjusted accordingly
502    o genmake2
503      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
504    
505    checkpoint58i_post
506    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
507      on wind stress (SEAICEstressFactor defaults to 1.)
508    o Total number of Timers is finite (<=40): comment out 2 non-essential one
509      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
510    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
511      on CS-grid: no longer loosing mass.
512    o exf & curvilinear-grid: no longer modify longitude xC & xG.
513    o pkg/ggl90: fix sloppy output and fix a bug
514    o pkg/seaice: added SEAICEuseEVPpickup parameter
515      - Set to false in order to start EVP solver with
516        non-EVP pickup files when using SEAICEuseEVP
517      - fix sign error in diffusion in seaice_calc_rhs
518    
519    checkpoint58h_post
520    * Modifications for bottom topography control
521      o replace hFacC by _hFacC at various places
522      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
523      o add non-self-adjoint cg2d_nsa
524      o update autodiff support routines
525      o re-initialise hfac after ctrl_depth_ini
526      o works for 5x5 box, doesnt work for global_ocean.90x40x15
527    * Adding verification for 5x5 box (4-layer) bottom topography control
528    
529    checkpoint58g_post
530    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
531       used for mean seasonal cycle, mean diurnal cycle); add an example
532       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
533    o pkg/ggl90:
534      - add parameter (minimum surface kinetic energy)
535      - fix bug (avoiding division by zero)
536    o couple pkg/thsice to pkg/seaice:
537      - modify advection in seaice to accomodate new scalar fields to be advected
538      - only muliDimAdection scheme work with seaice/thsice
539      - mapping of thsice-variables to seaice-variables, back and forth
540      - does not break the verification experiments, but does not give the
541        desired results either
542    o pkg/seaice
543      - make (default) second order advection a bit less confusing?
544    
545    checkpoint58f_post
546    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
547      to pkg/seaice):
548      - new routines thsice_map_exf and thsice_get_exf provide the interface
549      - add an additional formal parameter to thsice_solve4temp
550    o pkg/exf:
551      - add new fields wspeed, snowprecip (to be able to couple to thsice)
552      - correct Stefan-Boltzmann constant
553      - new parameter for longwave surface emittance
554      - separate some stuff from exf_bulkformulae into new routines  
555        exf_radiation, exf_wind
556      - add new parameters and constants: longwave emissivity for ocean, ice
557        and snow, evaporation parameters over ice
558      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
559        either wind from stress or stress from wind
560    o pkg/thSIce:
561    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
562    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
563       and THSICE_CALC_THICKN
564    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
565    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
566      to make debugging easier.
567    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
568    o pkg/bulk_force:
569      - clean-up comments and parameters ;
570      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
571    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
572      generate new output for test-experiment: aim.5l_cs.thSI
573    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
574      testreport accordingly
575    
576    checkpoint58e_post
577    o SEAICE_CGRID adjoint done
578    o R_STAR adjoint implemented.
579      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
580      * need to sort out init. of h0facc, etc.
581    o Make pkg/profile fully independent of ecco,cost, etc. stuff
582      to be able to use it in pure forward.
583    
584    checkpoint58d_post
585    o upgrade simple test-experiment to tutorial example:
586     step.1: duplicate the experiment and (step.2) will remove the old copy.
587      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
588      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
589      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
590      tutorial_global_oce_biogeo    <- copy of dic_example
591      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
592      tutorial_plume_on_slope       <- copy of plume_on_slope
593      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
594      tutorial_global_oce_optim     <- empty for now (David ?)
595      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
596     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
597    o correct a sign problem in cost_scat.F
598    o obcs and ptracers: fix boundary conditions for advections schemes
599      with larger stencil
600    o thsice adjoint: start
601    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
602      completeness
603    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
604      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
605    o ptracers adjoint:
606      * avoid extensive recomputatations
607      * fix missing re-init. of gptr (missed by TAF)
608    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
609      me to turn off the excessive output to STDOUT that this package produces
610    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
611      and add those terms in Vector-Invariant formulation.
612    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
613      if the control period (xx_hfluxperiod etc) is 0
614    o in profiles pkg, clean routines and fix details
615    o in ecco pkg, reading ssh data:
616      fix problem in case the model does not start at iter0=0
617    o fix mnc-pickup/restart for ptracers
618    o new package prifiles:
619      code to compute profile-based cost by Gael Forget
620      (modifs in ecco, ctrl, autodiff)
621    o Benign bug fix in initialization (spotted by M. Mazloff) of
622      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
623    
624    checkpoint58c_post
625    o adjoint: finish NLFS adjoint and provide reference output in
626      verification/global_ocean.90x40x15/results_ad_nlfs
627    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
628      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
629      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
630      with SEAICE_CGRID defined.
631    o move calendarDumps from "data" to "data.cal" and clean-up the code
632      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
633    o add useEXF & useCAL flags (for now, set in hard-coded way)
634    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
635      (were missing in NH mode, and wrong in quasihydrostatic mode).
636      waiting for Chris updated version of calc_gw to add those CALLs.
637    o fix bug in quasihydrostatic S/R ;
638      add a test for this option: global_ocean.90x40x15.qshyd
639    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
640      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
641    o add on/off flag useOffLine for package OFFLINE
642    o seaice:
643      - modify advection so that it works also on the C-grid
644      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
645        problem in multi-tile runs with C-grid
646      - add flags for clipping ice velocities and/or masking solver forcing
647      - fix drag (ocean on ice) formulation and a bug that caused noise in the
648        C-grid solver
649      - added a few comments to seaice_diffusion.F
650      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
651        are now exclusive)
652      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
653        required re-ordering the code a little:
654       + make DAIRN global variable (defined in SEAICE)
655       + move computation of the viscosities eta and zeta into a new separate
656         routine (because I need to recompute them in seaice_ocean_stress.F)
657    
658    checkpoint58b_post
659    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
660      update output.txt of exp. aim.5l_cs.thSI
661    o various mnc cleanups and improvements:
662      + shrink lookup tables by factor of ~4
663      + better error reporting when running out of lookup space
664      + able to handle longer path/file names (up to 500 chars)
665    o adjoint:
666      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
667      - TBD: "hidden" mom_vecinv recomp. in dynamics
668    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
669     (allow to differentiate between forcing components using new integer flags:
670      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
671     and add new flag to put Dissipation tendency out of Adams-Bashforth.
672    o ecco
673      - enable trend removal from SSH anomaly obs.
674    o adjoint
675      - a fix for PmEpR when #undef EXACT_CONSERV
676      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
677      - try to fix "hidden" recomp. in forward_step for NLFS
678        (NLFS seems broken sometimes after I checked it in)
679    o seaice:
680     - add c-grid version of the dynamic solver:
681       + three new routines that are the c-grid substitute lsr, dynsolver
682         and ostres
683       + put a few fields that were local to dynsolver into global common
684         blocks, so that I can move the computation of stresses etc into
685         seaice_lsr (saves coding but may break the adjoint).
686     - replace more hardwired parameters by runtime parameters
687     - add ice masks that mask the rhs of the implicit solvers where there
688       is no ice (commented out in seaice_dynsolver, because i am not sure
689       if this works properly), eventually this should replace the clipping
690       of ice velocities in seaice_dynsolver to +/-40cm/s.
691    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
692      include it only where its needed
693    o move balancing of fluxes before the call of external_forcing_surf
694    o seaice:
695      - correct units of turning angles (now they are really in degrees)
696      - move computation of GWATX/Y out of main routine into dynsolver
697      - initialize GWATX/Y in seaice_init
698    o Apply mask on Fresh-Water flux (needed for SSH forcing).
699      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
700    o seaice: add runtime flags for turning angles (default to zero)
701    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
702      and trend from exf forcing and ctrl control adjustments
703    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
704      (since checkpoint57x_post)
705    o change the default rotation period to 86164.s = the Earth rotation
706    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
707      and based on a reference stratification. Tested within hs94.cs-32x32x5.
708    o seaice advection: add code for choosing between the default (2nd order
709      central differences) and multiDim advection schemes provided by
710      pkg/generic_advdiff
711    o seaice:
712      - removed all references to SEAICE_GRID.h fields from
713        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
714        (cubed-sphere configuration will change a little)
715      - grid computations in seaice_init are obsolete now.
716      - cleaned up code a little so that is easier to read (hopefully).
717      - added new (better?) discretizations of default advection and diffusion
718        (turn on with SEAICEuseFluxForm)
719      - replace 1 in 3d global fields by kSurface in growth.F
720      
721    checkpoint58a_post
722    o seaice:
723      - bug fix in advect.F
724    o shelfice:
725      - separate shelfice load anomaly from pload (breaks with time
726        dependent forcing), => introduce constant field shelficeLoadAnomaly.
727        Its default is 0., but it may be computed more cleverly from (unknown)
728        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
729        done offline. A good approximation of the pressure load anomaly is
730        necessary to avoid large initial adjustment processes underneath
731        deep-reaching shelfice.
732      - small fix in ISOMIP shelfice_thermodynamics
733      - add more sophisticated thermodynamics of Hellmer (1989), this is
734        now the default
735      - give a few constants more intuitive names
736    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
737      if bulk formulae are used in long integration (especially EmPmR). Turn
738      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
739      if balancePrintMean, the imbalance that is substracted is printed to
740      STDOUT.
741    o fix bug (typo) in obcs_apply_eta.F
742    o add a new package shelfice which enables us to model the circulation
743      underneath shelf-ice with draughts of hundreds of meters.
744     - works
745     - to do: + include improved thermodynamics
746              + check whether kSurfC (from model/inc/SURFACE.h) can be used
747                instead of new field kTopC
748              + can we use topoFile, Ro_surf and existing code in ini_depth.F
749                instead of new field R_shelfIce and new code in ini_depth.F
750                and ini_mask_etc.F?
751              + adjust vertical mixing schemes?
752    o seaice pkg:
753     - add a cpp-flag to include a simple formula for a salinity dependent
754       freezing point of sea water at the surface
755     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
756       meridional stresses are now different (and hopefully correct)
757    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
758       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
759       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
760    o pkg/diagnostics: add options and parameters for regional-statistics
761       diagnostics ; define regions by reading a region-mask from a file
762       (might add other options later)
763    o pkg/bulk_force:
764     - add option and parameters to use AIM surface-flux formulae.
765     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
766       others forcing fields (defined in PARM05, parameter file "data") are loaded
767       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
768     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
769     - use the right EXCH call for uwind,vwind (to work on CS-grid).
770     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
771       and parameters (note: calcWindStress replaces .NOT.readwindstress).
772     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
773    
774    checkpoint58
775    o add "--embed-source" option to genmake2 which, when the supporting
776      tools can be compiled (as determined by genmake2) will turn on the
777      embed_files package which then embeds the entire MITgcm source code
778      (*.[fFhc] + Makefile) used for the build within the executable
779      - requested by CNH but off by default
780      - adds a paltry <9MB to the mitgcmuv executable in most cases
781      - only writes the output when useEMBEDSRC in eedata is true
782    o clean up 3-dim. relaxation codes:
783      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
784      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
785      * Thanks to Tom Haine for testing!
786    
787    checkpoint57z_post
788    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
789      affects output (@ truncation level) of exp. plume_on_slope ; updated.
790    o fix the pickup behavior for obcs in combination with ptracers
791    o fix a bug in ptracers_external_fields_load
792    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
793      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
794    o transfered surface NH pressure to eta field (if exactConserv).
795    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
796         and update lab_sea output.txt file.
797    o completing 3-dim. relaxation code: additional term
798         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
799      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
800      * At compile time, in "EXF_OPTIONS.h" set
801          #define  ALLOW_CLIMTEMP_RELAXATION
802          #define  ALLOW_CLIMSALT_RELAXATION
803      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
804          tauThetaClimRelax3Dim = 15552000.0,
805          tauSaltClimRelax3Dim  = 15552000.0,
806      * 3 cases:
807          1) Use a constant-in-time 3-dim. field
808          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
809          3) Real-time relax. to time-evolving prescribed field
810    o Adding Laplacian-type smoothness constraint on
811      initial and boundary (forcing) controls (ic, bc)
812      * enable at compile-time via
813        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
814      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
815      * Absolute scale somewhat unclear so far
816      * no area weighting was included since no other cost term does so far
817    
818    checkpoint57y_post
819    First step for a NLFS adjoint
820    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
821    o new init. routines for calc_r_star, calc_surf_dr
822    o still need to deal with ini_masks_etc
823    o testreport seemed happy
824    checkpoint57y_pre
825    
826    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
827    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
828    o add new offset feature to offline pkg (plus minor cleanup)
829    o cfc fixes for final year of integration
830    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
831      be in GCHEM_OPTIONS).
832    
833    checkpoint57x_post
834    o fix testreport Pb in multiple test experiment.
835    o cleanup our namelist syntax in verification:
836      - make it more F95 standards compliant (some work still needed)
837      - allows the vast majority of our tests to work with gfortran
838    o Non-Hydrostatic:
839     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
840     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
841    o Allow to apply AB on T,S rather than on AB(gT,gS):
842     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
843     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
844       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
845     - need a "clever" read_pickup to restart from the other AB formulation
846    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
847    o remove some unused variables (reduces number of compiler warnings)
848    o adjoint
849      * Disable useVariableViscosity for adjoint for time being
850        (there are a number of extensive recomputations)
851      * Initialize certain variables needed for adjoint
852    
853    checkpoint57w_post
854    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
855                 fix the singleCpuIO RS version of MDSWRITEFIELD
856       and add a WARNING if using globalFiles=T with multi-processors.
857    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
858      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
859    o tracer advection scheme:
860      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
861       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
862       was not very convenient).
863      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
864       (further tests needed for the implicit DST & Flux-Limiter schemes).
865    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
866      and sRef for convenience, handy, when you want to initialize
867      ptracers in a large domain with a constant non-zero value. Also,
868      untangle ptracers_init.F a little.
869    
870    checkpoint57v_post
871    o change dome exp. to use variable viscosity in side-drag terms.
872    o remove all the files from the cfc_offline test since they are now
873      incorporated into tutorial_cfc_offline which has been producing
874      identical results for a few days of testing
875    o add new parameter: sideDragFactor to enable half-slip-side BC
876      and change side-drag S/R to use viscosity from mom_calc_visc
877      (can switch back by setting sideDragFactor=0.); affects results at
878      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
879       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
880    o vorticity & strain are now computed without masking, to account for
881      no-slip-side BC in variable viscosity calculation ; mask is applied
882      anyway later on, before computing advection/coriolis terms.
883    o modify exp4 to test new obcs support for reading from external files
884      and for passive tracers
885    o fix behavior of ptracers_monitor when monitor output is written to a
886      netcdf-file; still not independent of monitor.F (writes in the same
887      file).
888    o change default value of tRef (put a uniform, meaningful value for ocean
889      & atmos) and initialize sRef (was missing, as Martin mentioned).
890    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
891      to be proportional to enstrophy dissipation length.  Thus,
892       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
893      This is now consistent with Smagorinsky and with the manual.
894    
895    checkpoint57u_post
896    o OBCS and PTRACERS: add open boundary support for passive tracers
897      - either use homogenous (pseudo) v.Neumann conditions or prescribe
898        OB-values from file; this is not different from the way theta and salinity
899        are treated
900      - however, Orlanski-radiation conditions are not supported, and the model
901        will stop if you use pTracers and Orlanski at the same time.
902      - beefed up the rountine obcs_external_fields_load: now only those open
903        boundary values are overwritten with values from files for which there
904        are really files, otherwise the OB-fields remain untouched. This makes
905        it possible to use different OBs at different ends of the domain (as
906        with EXF)
907    o reduce number of exch calls in shap_filt (s2).
908    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
909      truncation level) 4/5 MLAdjust test results (11&12 digits match).
910    
911    checkpoint57t_post
912    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
913    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
914      same truncation, independent of the face number: affects affects several
915      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
916    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
917      note that biharmonic viscosity + no-slip was not tested in any experiment.
918    o fix bug in non-linear free-surf side-drag ; generate new output for
919      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
920    o make mnc honor the writeBinaryPrec flag for most kinds of output
921    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
922    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
923      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
924    o add brackets in multi-terms sum to get same truncation, independent of
925      the face number (manage to get exactly same value of gU,gV at the cs-edge)
926      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
927    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
928      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
929      a maximum grid-scale Reynolds number.  Also, changes all length calculations
930      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
931      Suggested values of viscosity parameters found in mom_calc_visc.
932      Many new viscosity diagnostics available.
933    
934    checkpoint57s_post
935    o Add clearing-house for viscosity calculations, mom_calc_visc and
936      correct numerous bugs in LeithD and Smagorinsky discretizations.  
937      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
938      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
939      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
940      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
941      The Strain-Tension form is now called with useStrainTensonVisc=.true.
942      ViscAhStrain and viscAhTension are now retired.
943    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
944    o In response to JMC's bug report, genmake2 now ignores any soft-links
945      that it finds in the *current* directory when searching for files.
946      Soft-links found in any other source directories will still work as
947      they did before.
948    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
949      a C routine to unlimit the stack size
950    o mnc-ify pkg/aim snapshot vars
951    o mnc-ify pkg/land as requested by Daniel
952    o various changes to mnc including:
953      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
954      - output can now be grouped so that all files within a group
955          change the ITER portion of their names in lock-step together
956      - can now read ("global") PER-FACE (in addition to PER-TILE) files
957          and works with both EXCH1 and EXCH2 (but needs more testing)
958      - writing works for all verification test cases w/ g77 on Linux
959    
960    checkpoint57r_post
961    o make MNC variable initialization happen earlier
962    o add diagnostics for (almost) each term of the momentum Eq.
963    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
964    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
965    o remove MINIMAL_TAVE_OUTPUT option ;
966      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
967    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
968      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
969    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
970    o add time-dependent SST, SSS control
971    o cost terms in ecco/ modularized (new cost_generic.F)
972    o cost_averages routines are modularized (new cost_averagesgeneric.F)
973    o new infrastructure for seaice model vs. obs misfits in seaice/
974      * driver from the_main_loop.F is seaice_cost_driver.F
975      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
976      * gradient check in Exp. 6a of natl_box_adjoint/
977    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
978      (see README file)
979    
980    checkpoint57q_post
981    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
982    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
983      - bug was reported by Jean-Michel and Ian Fenty
984    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
985      update exp. cpl_aim+ocn output.
986    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
987      Needed for high-res. runs with large global files
988      to be able to limit tapelev size
989    o Changed some tests for adjoint:
990      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
991      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
992      * global_ocean.90x40x15/ back to default 3-level checkpointing
993    o Modifications to enable scripted COMMON to MODULE conversion
994      * verification/OpenAD/code/ has necessary scripts and description;
995      * converts, compiles and runs successfully;
996    
997    checkpoint57p_post
998    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
999    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1000      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1001    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1002    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1003      (was already the case for dissipation with mom_vecinv,
1004       and also the case for grad.PhiHyd when staggered-timeStep)
1005      This will allow to put dissipation out-off the AB time-stepping.
1006     Unfortunately, affects truncation error. Update output of exp. that "fails"
1007      (cg2d matching number) and leave the others for later: front_relax(10),
1008      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1009      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1010    
1011    checkpoint57o_post
1012    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1013      (2) its ready to be documented during the 20050801 DocFest
1014    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1015      for ideal_2D_oce and lab_sea on linux_ia32_g77
1016    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1017      in global1x1_tot/code_seaice_adj to access indices 32, 33
1018      (worth another tag)
1019    
1020    checkpoint57n_post
1021    o adding precip control xx_precip 32
1022    o adding swflux control xx_swflux 33
1023    o Replacing 10 forcing penalty cost routines by 1 generic.
1024    o Implementing partitioning in time-mean and variable adjustment
1025      for atmos. state.
1026    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1027    o in natl_box_adjoint:
1028      * updated exp 1 to 10
1029        (but does not have time-mean vs. variable split results yet)
1030    o updated global1x1/*_seaice_adj/
1031      to incorporate latest changes
1032    o enable useSingleCpuIO for mdsio vector routines
1033      (applies in particular to tapelev I/O)
1034    o removed inefficient K-loop in all active_file*control*.F
1035    
1036    checkpoint57m_post
1037    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1038      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1039    o pkg/exch2: filling of face-corner halo regions is optional
1040      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1041    
1042    checkpoint57l_post
1043     tag before updating tutorials (pre-release-2)
1044    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1045       for output and interpolation of input fields onto model grid)
1046    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1047       Affects results of exp. rotating_tank ; update output.txt.
1048    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1049          and taking the square quantity and/or using a fraction-weight field.
1050    o fix aim_diagnostics_init.F mate numbers.
1051    o add mnc output capability to diagnostics/diagstat and update
1052      our cvsignore files for the ACSII output generated
1053    
1054    checkpoint57k_post
1055    o lab_sea now uses diagnostics package and provides a suite of
1056      new EXF diagnostics output.
1057    
1058    checkpoint57j_post
1059    o exf
1060      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1061        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1062        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1063      * extended diagnostics output
1064        - now includes all EXF variables
1065        - hs, hl moved to common block
1066        - separate S/R for diagnostics, called after ctrl vector is added
1067        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1068        - EXFqnet contains true Qnet (i.e. includes qsw)
1069      * updated verif. lab_sea, global_with_exf
1070      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1071        to ensure that diagnostics sees a true EXFqnet
1072    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1073    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1074      several times with different frequencies.
1075    o mnc-ify the thsice package as requested by Daniel Enderton
1076      - the monitor--MNC output needs work
1077      - many attributes need to be added (most are currently blank)
1078    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1079      - many attributes need to be added (most are currently blank)
1080    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1081    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1082    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1083      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1084         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1085    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1086     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1087    
1088    checkpoint57i_post
1089    o Diagnostics package was changed: diagnostic allocation is now deactivated
1090      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1091    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1092      add 1rst Order upwind vertical Shear.
1093    o add a quick fix for A/B checkpointing in OFFLINE mode
1094    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1095      end-run around the C/Fortran linking horror in eesup/src/timers.F
1096    o added pkg/runclock: allows user to terminate run based on wall clock
1097    o added non-hydrostatic scaling parameter: nh_am2
1098    o pkg/my82: futile attempt to make results compiler-independent by adding
1099      some "_d 0", etc. no effect.
1100    o for mnc output, fill the 'T' coordinate var with myTime and create a
1101      separate 'iter' variable for iteration count
1102    o pkg/diagnostics:
1103      add new capability: output of Global/Regional & per-level statistics ;
1104      tested against monitor output (including land & thSIce) on various exp.
1105    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1106    
1107    checkpoint57h_done
1108      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1109      data.diagnostics, data.gchem, data.ptracers) is done.
1110    
1111    o pkg/diagnostics: prepare for Global/Regional statistics.
1112      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1113    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1114      and rename it: DIFFERENT_MULTIPLE
1115    
1116    checkpoint57h_post
1117    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1118    o pkg/diagnostics: change output frequency, now in seconds (instead
1119      of Nb of iterations). This requires to change data.diagnostics.
1120    checkpoint57h_pre
1121    
1122    o in mnc, let the user create the output dir if both mnc_outdir_date
1123      and mnc_outdir_num are false
1124    o add fflags() to pkg/diagnostics which allows one to specify, on a
1125      per-file basis, the file precision [default behavior is unchanged]
1126    o added diagnostics to pkg/kpp, including computation of mixed layer
1127      depth based on a temperature/density criterion
1128    o updated verification/natl_box to test the new pkg/kpp diagnostics
1129    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1130    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1131    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1132      not mnc -- this mistake was found by JMC and is now corrected
1133    
1134    checkpoint57g_post
1135    o add Adams-Bashforth 3rd Order time stepping:
1136      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1137      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1138    checkpoint57g_pre
1139    
1140    o make lambda[Theta,Salt]ClimRelax spatially varying
1141      (default remains spatially uniform constant based on tau)
1142    o added new control variables
1143      * init. uVel, vVel, etanN
1144      * lambda[Theta,Salt]ClimRelax
1145    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1146      (suggested by G. Forget)
1147    
1148    checkpoint57f_post
1149    o add parameter "baseTime" = model base time = time at iteration zero
1150      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1151      account for baseTime shift
1152    o move Coriolis arrays from PARAMS.h to GRID.h
1153    checkpoint57f_pre
1154    
1155    o mnc-ifying the seaice package
1156    o introduced an alternative length scale calculation for use in the limiting
1157      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1158    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1159    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1160      as well as grad(vort3).  Made it compatible with both approximate form
1161      for the cubed sphere and full form of these gradients.  Added flag
1162      useFullLeith to select between approximate and full form.  
1163    o add "d0" in getcon.F to reduce differences between compilers/platforms
1164      update output.txt of exp. fizhi-gridalt-hs
1165    o change port_rand funtion to allow to set the seed.
1166    o fix obscure MNC bug involving conversion between reals and integers
1167      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1168        new version is now more standards-compliant
1169    o adjoint-related modifications
1170      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1171      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1172      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1173    
1174    checkpoint57e_post
1175    o Adding eddy stress controls a la Ferreira et al.
1176    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1177    
1178    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1179      update output.txt of exp. fizhi-gridalt-hs
1180    o add more "Z" dimensions and associated coordinate vars to MNC
1181    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1182    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1183      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1184      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1185      months and years.  Requires pkg/cal.
1186    o diagnostics: add pickup functionality
1187      - off by default for backwards compatibility
1188      - current version only uses MDSIO -- MNC will be added
1189    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1190    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1191    
1192    checkpoint57d_post
1193    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1194    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1195      output from the diagnostics package
1196    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1197    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1198      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1199    o add coordinate variables to the MNC output from the diagnostics package
1200    o change MNC-flags default value: true when useMNC=TRUE
1201    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1202      the ability (off by default) to read the grid information using MNC
1203    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1204    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1205    o do snap-shot diagnostics at the middle of the time-interval (instead of
1206      at the end).
1207    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1208      new test for AIM with thSIce + slab-ocean
1209    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1210    o move state variable diagnostics to the beginning of the time step ;
1211      (note: still needs some work specially for snap-shot diagnostics)
1212      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1213    
1214    checkpoint57c_post
1215    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1216    o generate new output.txt files on faulks with g77 & the new -ieee option
1217    checkpoint57c_pre
1218    
1219    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1220      update output.txt of exp. global_ocean.90x40x15
1221    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1222      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1223    o add saltFlux(+File) forcing capability with periodicExternalForcing
1224    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1225    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1226    o improvements for the MNC output from DIAGNOSTICS:
1227      - correct handling of the unlimitied dimension
1228      - all dims now have associated coordinate variables
1229      - variables located at U, V, and Corner ("Z") points are now written
1230        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1231        *all* data points are output
1232    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1233    o added pkg/seaice/seaice_monitor.F
1234    o mdsio_readfield.F can now read files visible only to master MPI process.
1235    o pkg/seaice: some test code for ice-modified ocean stress
1236    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1237      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1238      spurious negative numbers for precipitation and humidity.  Will cause
1239      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1240    o pkg/ctrl/
1241      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1242        May be enabled via doPackDiag
1243      *  introduce z-scaling of
1244         + gradient (doZscalePack) and
1245         + control (doZscaleUnpack)
1246    o pkg/mdsio/
1247      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1248      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1249    
1250    checkpoint57b_post
1251    o simplify options in diagnostics_fill arguments (remove weird combinations)
1252    o fix MNC coordinate variables so that they now contain per-face index
1253      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1254      general, EXCH2 grids are only aligned to a "local" coordinate system
1255    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1256    o Implement instantaneous output within pkg diagnostics:
1257      setting a negative frequency in data.diagnostics produces
1258     "snap-shot" output (as opposed to time-average if freq > 0)
1259    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1260      NOTE: change ptracer diagnostics name: use 2 characters to work with
1261            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1262    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1263      becomes the coordinate variable for the 'T' dimension
1264    o add CF-style coordinate variables to MNC
1265      - just a first cut:  numbers are meaningless on the cubesphere and
1266        missing along the T axis but otherwise it works!
1267    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1268    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1269    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1270      this is based directly on what the model compute, so that the content of
1271      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1272    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1273    o clean up build options files for SunOS, in particular
1274      - remove -traditional from xmakedepend
1275      - change -xarch=v9 to -xarch=native for f77
1276      - restore use of make (not gmake)
1277      - add CC=gcc if using g77
1278    o changes per discussion of AM, JMC, & EH3 today:
1279      - move redundant "grid" variables out of "state" -- in preparation of
1280        creating proper CF-style coordinate variables and in recognition
1281        that any/all grid variables can be easily copied (eg. w/NCO) from
1282        the grid files into any of the other NetCDF files
1283      - *always* output grid variables with MDSIO (this will eventually be
1284        changed)
1285      - output MNC grid file if useMNC is true
1286    o every instance of _END_MASTER() has been found and replaced with
1287      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1288      preprocessors
1289    o re-arrange diagnostics pkg initialisation:
1290     - allow each package to extend the available diagnostics list
1291     - add some checking and fix small problems (multi-threaded, ...)
1292     - new S/R diagnostics_fill (replace fill_diagnostics):
1293       look through the short list of active diag. (instead of the long list)
1294       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1295    
1296    checkpoint57a_post
1297    o this set of changes restores TAMC compatibility
1298      tested for global_ocean.90x40x15 adjoint on trough
1299      (what a pain)
1300    
1301    checkpoint57a_pre
1302    o some modifs in tools/build_options for sunos
1303    o call ctrl_pack for ctrl at end for optimcycle=0
1304    
1305    checkpoint57
1306    o add horizontal bi-harmonic viscosity for vertical velocity
1307      - new parameter viscA4W (defaults to viscA4)
1308      - affects only non-hydrostatic code
1309      - to be done: no-slip lateral boundary conditions
1310    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1311    o implement Implicit Vertical advection for pTracers
1312    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1313      (implemented also for implicit vertical diffusion & advection)
1314    o OBCS: extend application of tracer open boundary conditions
1315      to a strip beyond the boundary of width Olx/Oly
1316    o add call monitor to TAF set of required calls (flow directives)
1317      and include in natl_box_adjoint
1318    o untangle a few ifdefs related to cost, ctrl, autodiff
1319      untangel a few ALLOW_ECCO_OPTIMIZATION
1320    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1321      (theta2, salt2 in ecco_cost_weights)
1322    
1323    checkpoint56c_post
1324    o OBCS as control variables
1325      - update ctrl_ad_diff.list, obcs_ad_diff.list
1326      - remove balance of obcs controls from default
1327      - fix index bug nobcs in ctrl_init
1328      - fix dummy fields filen in ctrl_pack
1329      - add dummy weights for obcs
1330    o lsopt: comment out fort.94 output
1331    o optim:
1332      - remove unnecessary header files
1333      - adjusted namelists
1334      - add xerbla.F to Makefile
1335    o exf:
1336      - multiple modifications of exf_check_range
1337      - unit change in exf_init_runoff from [m/year] to [m/s]
1338    o mdsio:
1339      - i/o-vector change debugLevel from debLevA to debLevB
1340    
1341    checkpoint56b_post
1342    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1343      is called from DO_THE_MODEL_IO
1344      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1345      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1346      - clean up PTRACERS_WRITE_TIMEAVE a little
1347    o add another verification experiment that tests both the cfc-pkg and
1348      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1349      reactive tendencies treated inline with regular timestepping
1350    o testreport previously did a lousy job of comparing small numbers, so
1351      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1352      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1353      testreport.
1354    o ptracers_monitor: bug fix for MPI
1355    
1356    checkpoint56a_post
1357    o GCHEM: finish reorganizating the package
1358      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1359        (introduces another 3D-array for each passive tracer, but only if
1360        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1361        gchemTendency is not needed because the timestep is done separately)
1362      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1363      - GCHEM is now---more or less cleanly---separate from PTRACERS
1364      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1365        so clear to me how that should be done in a general way.
1366    o CFC: improve formatting of output in CFC_ATMOS
1367    o PTRACERS:
1368      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1369        that ALL experiments with ptracers enable can be checked. This makes
1370        GCHEM_MONITOR obsolete.
1371      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1372        monitorFreq
1373      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1374    o add PTRACERS (PTR0[1-5]) to testreport output
1375    o exf_check_range:
1376      * default changed to .TRUE.
1377      * will check values for niter0 if debLevA, every timestep if debLevB
1378      * STOP in exf_check_range if 'out of range'
1379      * range chosen generous to allow for potential extema
1380      TBD: a version with stricter range
1381           permitted range would be runtime parameters
1382  o GMredi:  o GMredi:
1383    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1384    - 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 1387  o GCHEM:
1387    - 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
1388      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1389    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1390      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1391        this flag is now only visible within GCHEM-pkg routines.
1392      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1393        be replaced by a 3D array that is computed before thermodynamics; for
1394        this, the tracer ID iTracer had to be included into the parameter list
1395        of ptracers_forcing
1396      - set up forward_step to call gchem_forcing, that will replace
1397        gchem_forcing_int in ptracers_forcing
1398      - cleaning up
1399  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
1400    
1401  checkpoint56  checkpoint56

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