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revision 1.392 by mlosch, Tue Nov 23 20:22:12 2004 UTC revision 1.823 by mlosch, Fri May 25 14:52:27 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      - allow values of SEAICE_elaticParm > 1
9      - make lsr boundary conditions free slip (by default)
10      - add code for no slip boundary conditions for lsr
11      - set minimum of zeta to zero (and not 4e8) (changes results)
12    o change calculation of Visbeck K:
13      - no longer depend on tapering scheme; instead, compute slope (limited
14        by GM_maxSlope). this is equivalent to what was comuted before with
15        clipping or linear tappering.
16      - fix vertical averaging (wrong by 1 level)
17      - leave the old version (but will not be maintained) within
18        #ifdef OLD_VISBECK_CALC / #endif
19    o change error catch in calc_r_star to improve vectorization
20    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
21      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
22    
23    checkpoint59b
24    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
25      - export/import (between ocean & coupler) fields needed for ocean DIC.
26    o pkg/seaice:
27      - get rid of three more exchanges seaice_calc_viscosities (required
28        different loop boundaries in seaice_lsr and seaice_ocean_stress)
29      - bug fix in seaice_ocean_stress (update of lab_sea required)
30      - reduce loop boundaries to necessary minimum also in seaice_evp
31      - go back to the old way of computing deltaC/Z as the adjoint likes that
32        better
33    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
34      passive tracer to an Age Tracer) + update output.txt
35    o pkg/exf:
36      - implement A-grid / C-grid selection for wind-stress input files.
37      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
38      for now, in exf_bulk_largeyeager04.F only :
39      - change implementation for case where windspeed + 2. components wind-stress
40        are read-in. AND use rhoConstFresh to convert evap.
41    o pkg/seaice:
42      - use correct EXCH_UV for wind-forcing (on A-grid).
43      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
44        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
45    o pkg/exf:
46      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
47      EXF_INTERPOLATION:
48      - merge global_with_exf/code version of exf_interp_read.F
49        to the main code ;
50      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
51        reading the file ; Important: This options needs to be defined to recover
52        previous code.
53        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
54      - no longer loose real*8 precision along the way when using exf_iprec=64.
55    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
56      - change discretisation of evp-solver in order to avoid another exchange
57        (changes lab_sea) and clean up a little
58      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
59        help the adjoint (this also changes the results slightly)
60      - add a few "_d 0" where they had been missing in seaice_evp.F
61      - cleaning up: remove unused seaice_calc_rhs.F
62    o pkg/exf: some cleaning-up:
63      - change various "constants" into runtime parameters
64      - cleaned-up Large&Yeager04 routine which should eventually
65        replace exf_bulkformulae.F (changed names of S/R and CPP)
66        and merged various ALLOW_ATM_WIND options
67     only used with thsice pkg (in thsice_get_exf.F):
68      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
69        which are used when useStabilityFct_overIce=TRUE (= the default)
70      - change default values of ice & snow emissivity and scale downward LW
71        by ice & snow emissivity.
72    o pkg/thsice:
73     fix few little problems, in thsice_calc_thickn.F:
74      - growth vertically (and not laterally) if iceFrac == iceMaskMax
75      - melt laterally only if hIce < hThinIce (as the comments say)
76      and in thsice_extend.F:
77      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
78      - start to form ice as soon as the minimum ice-volume is reachable.
79     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
80      and cpl_aim+ocn
81    o pkg/kpp
82     - move computation of surface related input fields to KPP into a new
83       subroutine kpp_forcing_surf.F
84     - remove wrong (within bi,bj loops) EXCH calls.
85     - little cleaning (add argument myThid in last position, cvs header ...)
86     - for now, fix conservation problem by exchanging KPPviscAz (may not
87       be the best fix)
88    o pkg/seaice
89     - check for inconsistent evp parameter/cpp-flag combination
90     - remove leftover errIO flat for obsolete name list error handling
91    o OpenAD
92     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
93    
94    checkpoint59a
95    o pkg/seaice: some parameter clarifications and a little bit of clean up
96    o pkg/thsice: rename run-time parameters:
97       himin       -> hIceMin
98       himin0      -> hThinIce
99       hihig       -> hThickIce
100       i0          -> i0swFrac
101       transCoef   -> bMeltCoef
102       frac_energy -> fracMelting
103      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
104       with default values (for now) that do not change the results.
105      remove old version of thsice vars advection in pkg/seaice.
106    o in FFIELDS.h:
107      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
108      - make pLoad & sIceLoad always available (but still only used if
109         ATMOSPHERIC_LOADING is #define).
110    o pkg/kpp: replaced _KPP_RL with _RL
111    o bug fixes for vertical diffusivity computations when both KPP and
112        3D diffusivity arrays are used.
113    o pkg/seaice: fix bug in evp solver, while doing that
114      - change (improve?) discretization of stress computations for both
115        cgrid-lsr and evp solver
116      - add a new routine to compute strain rates
117      - the above changes lab_sea results
118      - add no slip conditions for evp solver (off by default), lsr-version
119        may follow
120      - fix exchange for shear at Z-points (does not change lab_sea)
121      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
122        (to force the user to pick a time step since there is not "safe" way
123        of choosing it)
124      - add principal stress diagnostics
125      - rearrange fields for evp a little to avoid having to call a: too many
126        exchanges and b: exchanges for stress trensor components which we do
127        not have.
128      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
129        of evp, complete rewrite for lsr case (latter is does not yet work
130        in all cases)
131    o pkg/kpp: add code to have mixing in shelf ice caverns
132      - add myThid to all kpp routines (long overdue)
133    
134    checkpoint59
135    o pkg/exf:
136      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
137        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
138      - move exf header files from lower_case.h to UPPER_CASE.h ;
139        add missing cvs Header & Name
140      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
141      - add namelist param. selectStressGridPosition, exf_monFreq
142      - retire many _CLIM routines, and remove data.exf_clim
143        + params moved to data.exf
144        + climsst, climsss now handled by exf_set_gen, i.e.
145          climss?period=0 refers to constant field,
146          climss?period=-12 to monthly forcing
147      - split up namelists in data.exf
148    o pkg/seaice:
149      - remove seaice_exch and seaice_exch_uv
150      - remove superfluous exchange of theta
151      - add myThid to seaice_budget_ocean/ice
152      - add new interface for atmospheric wind forcing (C-grid only)
153        + new routine
154        + two new field (taux, tauy for stress over ice)
155        + removed one global field (DAIRN) for C-grid case only
156    o pkg/thsise
157      - 2nd set of modifs for thsice adjoint in conjunction with exf
158    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
159    
160    checkpoint58y_post
161    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
162      vertical diffusivity, similar to that in MOM4; turned on using
163      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
164      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
165    o Added capability for 3D specification of background vertical diffusion
166      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
167      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
168      "data" file that contains the 3D vertical diffusivity coefficients.
169    o ice dynamics (pkg/seaice) with thsice thermodynamics:
170      - add code within pkg thsice to advect & diffuse sea-ice fields
171      similar to (and will replace) what has been added in  seaice_advdiff.F,
172      but: - conserving Mass, Heat & Salt.
173           - better when using non-linear advection scheme (not yet fully tested)
174           - can also be used in atmospheric set-up (for now, only the diffusion).
175    
176    checkpoint58x_post
177    o IO option for global-file compact format:
178      - add options when generating topology (utils/exch2/matlab-topology-generator)
179      - add I/O capability (pkg/mdsio).
180      - adapt utils/matlab/rdmds.m to read this format.
181      for now long-line format not yet supported by pkg/mdsio (& exch2).
182    o shelfice: add a few diagnostics
183    
184    checkpoint58w_post
185    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
186      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
187      (and replace horiVertRatio in NH code).
188      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
189                         and tutorial_plume_on_slope (sensitive to truncation)
190    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
191      directly to drive seaice model (C-grid only)
192    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
193     - reintroduce computation of wind from stress,
194     - compute tau (in exf_bulkformulae.F) from windstress averaged to
195       mass points to avoid tau = 0
196     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
197    o rdmnc.m: make it work with "global" files created with gluemnc
198    o rdmnc.m : some improvements in dealing with singleton dimension
199      (tested on all testreport mnc output files).
200    o genmake2: disable pkg/profiles if netcdf test fails.
201    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
202    o move call to cal_readparms up to make calendar parameters/variable available
203      to all packages
204    
205    checkpoint58v_post
206    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
207      useDynP_inEos_Zc tested.
208    o pkg/exf: changes to properly interpolate/mask/scale initial fields
209    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
210      and portions thereof.  See read_cs.txt for description and examples.
211    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
212      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
213      following the great-circle arc between those 2 points.
214    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
215      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
216    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
217     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
218     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
219     - still needs work (not working with some options ; efficiency to improve)
220       and serious testing.
221     - use this scheme for temperature & salinity in 2 advection test exp.:
222       advect_xy & advect_xz, respectively.
223    
224    checkpoint58u_post
225    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
226    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
227    o testreport: add option "-skipdir" to skip some test.
228    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
229      momentum calculation.
230    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
231    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
232      remove checkpoint.F and the_correction_step.F (no longer used);
233      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
234    o add option (linFSConserveTr) to correct for tracer source/sink due to
235      Linear Free surface
236    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
237    o pkg/thsice: fix reading mnc-pickups
238    
239    checkpoint58t_post
240    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
241    o pkg/mdsio:
242     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
243       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
244       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
245     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
246     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
247       either MDS_READ_FIELD or MDS_WRITE_FIELD )
248     - new S/R (to replace MDSWRITEMETA), which allows to write more
249       informations (variable names, time ...) to meta files.
250     - modify rdmds.m to give back the meta file content.
251    o pkg/diagnostics: change vertical interpolation to be safer, and more
252       flexible (define p-levels to interpolate to in data.diagnostics);
253      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
254       diagnostic pointer.
255    o pkg/seaice: more cleaning up of seaice_growth, added many comments
256    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
257    o fix multi-category seaice:
258     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
259       SEAICE_MULTICATEGORY
260     - fix short wave heat flux
261    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
262       and allow to use EVP solver. Change forward lab_sea: test both EVP
263       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
264    o Initial check-in of lab_sea adjoint
265      (very similar to natl_box_adjoint/code_seaice)
266      * used C-grid and EVP solver
267      * used KPP, GM/Redi
268      * uses inAdExact=.TRUE.
269      * gradient checks fail for both ADM and TLM
270        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
271        f.d. gradients actually seem more problematic than ADM, TLM gradients;
272        issue is related to forward mismatch between g77 an ifort
273    o pkg/seaice: overhaul of thermodynamics
274     - growth.F and groatb.F are replaced by new routine seaice_growth.F
275     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
276     - move a few global fields out of SEAICE.h into seaice_growth.F and
277       make them 2D (FICE/QNETO/ ...)
278     - remove FO (it is the same as QNETO)
279     - introduce a few local fields to avoid modifying external fields such
280       as atemp, etc.
281    
282    checkpoint58s_post
283    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
284      changed exf_set_gen.F so that
285        genperiod=0 means input file is one time-constant field and
286        genperiod=-12 means input file contains 12 monthly means
287    o CG2D: use pre-computed solver main-diagonal (stored in common block);
288      this affects truncation error ; generate new output file for exp. which
289      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
290        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
291        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
292        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
293        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
294        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
295    o start implementation of deep-atmosphere and anelastic formulation
296    o verification: remove 2nd copy of input files and use script "prepare_run"
297      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
298    o mom_common/vecinv/fluxform: fix a few initialisation isssues
299    o profiles: fix for multithreaded case
300    
301    o diagnostics: rename few diags:
302      s/'PRESSURE'/'RCENTER '/g
303      s/'TICE    '/'oceFreez'/g
304      s/'TAUX    '/'oceTAUX '/g
305      s/'TAUY    '/'oceTAUY '/g
306      s/'SWFLUX  '/'oceQsw  '/g
307      s/DIFx/DFxE/g
308      s/DIFy/DFyE/g
309      and add few ocean-forcing diagnostics:
310      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
311    o modifications to pkg/seaice/growth.F and budget.F, which change results of
312      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
313      as actual snow thickness.  It now refers everywhere to effective snow
314      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
315    
316    checkpoint58r_post
317    o modifications to pkg/seaice/growth.F, which change results of
318      lab_sea experiment: fixes pertain to melting snow over open water, to
319      masking EVAP under sea ice, and to using the correct AREA variable for
320      computations of EVAP, PRECIP, HSNOW, and GHEFF
321    o add ability to read bathy, salt, and theta using MNC (off by def)
322    o add flooding algorithm and advection of HSNOW for pkg/seaice;
323      both are turned off by default and do no change any results
324    o seaice advection with pkg/thsice: a step toward the use of non-linear
325      advection scheme, but #ifdef or commented out for now (requires more EXCH).
326    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
327      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
328      in natl_box (affects results @ truncation level: update output.txt)
329    o multi-threading and IO:
330      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
331      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
332        (needed to work with SingleCpuIO): tested in all verif. exp.
333    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
334      affects the results (but none of the verification test uses this scheme).
335    o Adding some pkg/diagnostics capability to pkg/seaice
336      (will certainly be subject to changes)
337    o ctrl: adding new control variables:
338      lwflux, lwdown, evap, snowprecip, apressure, runoff
339    
340    checkpoint58q_post
341    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
342      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
343      high_res_cube configuration by 4% on Columbia.
344    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
345      add (in global_with_exf/code) a version of EXF_INTERP_READ without
346      dynamical allocation (seems to work in multi-threaded).
347    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
348      single CPU io) so that TAF does not have to see EESUPPORT.h
349    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
350    
351    checkpoint58p_post
352    o obcs: stop if obcs is used with useCDscheme = .true.
353    o shelfice:
354     - fix a sign error so that no slip at shelfice interface works
355     - remove stop for combination non-hydrostatic code and shelfice. That does
356       not mean, that the results are correct, but at least they are numerically
357       stable
358    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
359    o added adjoint exch routined for all exch*3d* routines
360      and updated flow directives
361    
362    checkpoint58o_post
363    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
364      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
365    o change controling S/R for writing pickup file (new S/R do_write_pickup)
366      and clean-up reading/writing of pickup files.
367    o fix local version of read/write pickup (NH part) in rotating_tank/code
368    o simplify EXCH interface:
369     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
370     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
371    o added the regrid package
372    o shelfice:
373     - add a simple boundary layer scheme to reduce noise
374     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
375    
376    checkpoint58n_post
377    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
378       local variable (not in common block).
379    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
380      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
381      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
382        to work with SingleCpuIO.
383    o add "_d 0" to real constant of pkg/cfc subroutines ;
384       update exp. cfc_exemple & tutorial_cfc_offline output files.
385    o multi-threading and IO:
386      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
387        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
388      - barrier before and after reading.
389      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
390      - avoid using MDS_WRITELOCAL for LAND pkg output.
391      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
392        common-block variables ; Allows multi-threading with master-thread IO.
393    o change default MAX_NO_THREADS from 32 to 4 ;
394      and stop cleanly when MAX_NO_THREADS is too small.
395    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
396    
397    checkpoint58m_post
398    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
399       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
400    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
401       keep global_ocean.90x40x15 (for AD testing) with former secondary test
402       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
403    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
404        add MITgcm_tutorials (= code + all the tutorials)
405    o ecco, option to compute cost for total ssh (mean+anom)
406    o consistent with addition of ptracer and ssh in pkg/profiles
407    o profiles: adding ptracer and ssh
408    o testreport: change multi-test output-file name
409      (from output.txt.{name} to output.{name}.txt)
410    o profiles: now ok for mutli-tiles case
411    o seaice: add 4 parameters for different advection schemes for area,
412      (effective) seaice thickness, enthalphy, and snow height. Their default
413      is the standard parameter SEAICEadvScheme
414    o calc_gw:
415     - add cosFacU in zonal viscous flux (harmonic.visc.).
416     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
417       of tutorial_plume_on_slope.
418    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
419    o calc_gw: true flux-form, account for horizontal grid spacing.
420      update rotating_tank results, but not plume_on_slope (affected at
421      truncation level, 11 digits).
422    
423    checkpoint58l_post
424    o calc_gw:
425     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
426     - remove side-drag for now (need to fix it); update plume_on_slope results.
427     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
428    o commit code to make SST/SSS weights spatially variable
429      (based on either variable in-situ or variable initial T/S weights)
430    o pkg/ecco:
431      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
432        now based on horizontally varying weights wthetaLev, wsaltLev
433      * cost_averagesflags now returns year indices in addition to day, month
434      * sflux balance is performed on annual basis
435        (sflxumm, sfluxmm2, bal_sfluxmm)
436      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
437        including separate counting and multipliers
438    o pkg/rbcs
439      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
440    
441    checkpoint58k_post
442    o testreport:
443     - always build in dir. "build" (if not there, mkdir build instead of building
444       & running in input)
445     - run in dir run (if it exists), in build otherwise.
446     - call prepare_run (if input/prepare_run exists)
447     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
448    o pkg/exf modifications to interpolation and rotation routines for more
449       reasonable treatment of North Pole singularity: for tracers North Pole
450       value is set to northernmost zonal-mean value, for zonal velocity it is
451       set to zero, and for meridional velocity it is set to northernmost value.
452    o pkg/exf/exf_check_range.F
453     - add tile index to diagnostics and move stop statement to the very
454       end of the routine.
455    o pkg/diagnostics: (diagnostics_main_init.F)
456      define title of isomorphic variables according to the current config.
457    o pkg/thsice with pkg/seaice dynamics:
458    - fix domain of computation (interior only, required for exf) and do exchanges
459    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
460    o towards a standard way of dealing with multi-threading in MONITOR
461      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
462    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
463       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
464    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
465    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
466    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
467       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
468    o tracer advection:
469     - clean-up and simplify calc_common_factors.F
470     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
471       advection subroutine (but still not used within DST advection S/R)
472    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
473    
474    checkpoint58j_post
475    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
476      from file (collects calls previously in FORWARD_STEP)
477    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
478    o adjoint store dir. adjusted accordingly
479    o genmake2
480      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
481    
482    checkpoint58i_post
483    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
484      on wind stress (SEAICEstressFactor defaults to 1.)
485    o Total number of Timers is finite (<=40): comment out 2 non-essential one
486      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
487    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
488      on CS-grid: no longer loosing mass.
489    o exf & curvilinear-grid: no longer modify longitude xC & xG.
490    o pkg/ggl90: fix sloppy output and fix a bug
491    o pkg/seaice: added SEAICEuseEVPpickup parameter
492      - Set to false in order to start EVP solver with
493        non-EVP pickup files when using SEAICEuseEVP
494      - fix sign error in diffusion in seaice_calc_rhs
495    
496    checkpoint58h_post
497    * Modifications for bottom topography control
498      o replace hFacC by _hFacC at various places
499      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
500      o add non-self-adjoint cg2d_nsa
501      o update autodiff support routines
502      o re-initialise hfac after ctrl_depth_ini
503      o works for 5x5 box, doesnt work for global_ocean.90x40x15
504    * Adding verification for 5x5 box (4-layer) bottom topography control
505    
506    checkpoint58g_post
507    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
508       used for mean seasonal cycle, mean diurnal cycle); add an example
509       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
510    o pkg/ggl90:
511      - add parameter (minimum surface kinetic energy)
512      - fix bug (avoiding division by zero)
513    o couple pkg/thsice to pkg/seaice:
514      - modify advection in seaice to accomodate new scalar fields to be advected
515      - only muliDimAdection scheme work with seaice/thsice
516      - mapping of thsice-variables to seaice-variables, back and forth
517      - does not break the verification experiments, but does not give the
518        desired results either
519    o pkg/seaice
520      - make (default) second order advection a bit less confusing?
521    
522    checkpoint58f_post
523    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
524      to pkg/seaice):
525      - new routines thsice_map_exf and thsice_get_exf provide the interface
526      - add an additional formal parameter to thsice_solve4temp
527    o pkg/exf:
528      - add new fields wspeed, snowprecip (to be able to couple to thsice)
529      - correct Stefan-Boltzmann constant
530      - new parameter for longwave surface emittance
531      - separate some stuff from exf_bulkformulae into new routines  
532        exf_radiation, exf_wind
533      - add new parameters and constants: longwave emissivity for ocean, ice
534        and snow, evaporation parameters over ice
535      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
536        either wind from stress or stress from wind
537    o pkg/thSIce:
538    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
539    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
540       and THSICE_CALC_THICKN
541    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
542    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
543      to make debugging easier.
544    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
545    o pkg/bulk_force:
546      - clean-up comments and parameters ;
547      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
548    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
549      generate new output for test-experiment: aim.5l_cs.thSI
550    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
551      testreport accordingly
552    
553    checkpoint58e_post
554    o SEAICE_CGRID adjoint done
555    o R_STAR adjoint implemented.
556      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
557      * need to sort out init. of h0facc, etc.
558    o Make pkg/profile fully independent of ecco,cost, etc. stuff
559      to be able to use it in pure forward.
560    
561    checkpoint58d_post
562    o upgrade simple test-experiment to tutorial example:
563     step.1: duplicate the experiment and (step.2) will remove the old copy.
564      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
565      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
566      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
567      tutorial_global_oce_biogeo    <- copy of dic_example
568      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
569      tutorial_plume_on_slope       <- copy of plume_on_slope
570      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
571      tutorial_global_oce_optim     <- empty for now (David ?)
572      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
573     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
574    o correct a sign problem in cost_scat.F
575    o obcs and ptracers: fix boundary conditions for advections schemes
576      with larger stencil
577    o thsice adjoint: start
578    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
579      completeness
580    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
581      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
582    o ptracers adjoint:
583      * avoid extensive recomputatations
584      * fix missing re-init. of gptr (missed by TAF)
585    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
586      me to turn off the excessive output to STDOUT that this package produces
587    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
588      and add those terms in Vector-Invariant formulation.
589    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
590      if the control period (xx_hfluxperiod etc) is 0
591    o in profiles pkg, clean routines and fix details
592    o in ecco pkg, reading ssh data:
593      fix problem in case the model does not start at iter0=0
594    o fix mnc-pickup/restart for ptracers
595    o new package prifiles:
596      code to compute profile-based cost by Gael Forget
597      (modifs in ecco, ctrl, autodiff)
598    o Benign bug fix in initialization (spotted by M. Mazloff) of
599      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
600    
601    checkpoint58c_post
602    o adjoint: finish NLFS adjoint and provide reference output in
603      verification/global_ocean.90x40x15/results_ad_nlfs
604    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
605      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
606      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
607      with SEAICE_CGRID defined.
608    o move calendarDumps from "data" to "data.cal" and clean-up the code
609      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
610    o add useEXF & useCAL flags (for now, set in hard-coded way)
611    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
612      (were missing in NH mode, and wrong in quasihydrostatic mode).
613      waiting for Chris updated version of calc_gw to add those CALLs.
614    o fix bug in quasihydrostatic S/R ;
615      add a test for this option: global_ocean.90x40x15.qshyd
616    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
617      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
618    o add on/off flag useOffLine for package OFFLINE
619    o seaice:
620      - modify advection so that it works also on the C-grid
621      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
622        problem in multi-tile runs with C-grid
623      - add flags for clipping ice velocities and/or masking solver forcing
624      - fix drag (ocean on ice) formulation and a bug that caused noise in the
625        C-grid solver
626      - added a few comments to seaice_diffusion.F
627      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
628        are now exclusive)
629      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
630        required re-ordering the code a little:
631       + make DAIRN global variable (defined in SEAICE)
632       + move computation of the viscosities eta and zeta into a new separate
633         routine (because I need to recompute them in seaice_ocean_stress.F)
634    
635    checkpoint58b_post
636    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
637      update output.txt of exp. aim.5l_cs.thSI
638    o various mnc cleanups and improvements:
639      + shrink lookup tables by factor of ~4
640      + better error reporting when running out of lookup space
641      + able to handle longer path/file names (up to 500 chars)
642    o adjoint:
643      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
644      - TBD: "hidden" mom_vecinv recomp. in dynamics
645    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
646     (allow to differentiate between forcing components using new integer flags:
647      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
648     and add new flag to put Dissipation tendency out of Adams-Bashforth.
649    o ecco
650      - enable trend removal from SSH anomaly obs.
651    o adjoint
652      - a fix for PmEpR when #undef EXACT_CONSERV
653      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
654      - try to fix "hidden" recomp. in forward_step for NLFS
655        (NLFS seems broken sometimes after I checked it in)
656    o seaice:
657     - add c-grid version of the dynamic solver:
658       + three new routines that are the c-grid substitute lsr, dynsolver
659         and ostres
660       + put a few fields that were local to dynsolver into global common
661         blocks, so that I can move the computation of stresses etc into
662         seaice_lsr (saves coding but may break the adjoint).
663     - replace more hardwired parameters by runtime parameters
664     - add ice masks that mask the rhs of the implicit solvers where there
665       is no ice (commented out in seaice_dynsolver, because i am not sure
666       if this works properly), eventually this should replace the clipping
667       of ice velocities in seaice_dynsolver to +/-40cm/s.
668    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
669      include it only where its needed
670    o move balancing of fluxes before the call of external_forcing_surf
671    o seaice:
672      - correct units of turning angles (now they are really in degrees)
673      - move computation of GWATX/Y out of main routine into dynsolver
674      - initialize GWATX/Y in seaice_init
675    o Apply mask on Fresh-Water flux (needed for SSH forcing).
676      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
677    o seaice: add runtime flags for turning angles (default to zero)
678    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
679      and trend from exf forcing and ctrl control adjustments
680    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
681      (since checkpoint57x_post)
682    o change the default rotation period to 86164.s = the Earth rotation
683    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
684      and based on a reference stratification. Tested within hs94.cs-32x32x5.
685    o seaice advection: add code for choosing between the default (2nd order
686      central differences) and multiDim advection schemes provided by
687      pkg/generic_advdiff
688    o seaice:
689      - removed all references to SEAICE_GRID.h fields from
690        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
691        (cubed-sphere configuration will change a little)
692      - grid computations in seaice_init are obsolete now.
693      - cleaned up code a little so that is easier to read (hopefully).
694      - added new (better?) discretizations of default advection and diffusion
695        (turn on with SEAICEuseFluxForm)
696      - replace 1 in 3d global fields by kSurface in growth.F
697      
698    checkpoint58a_post
699    o seaice:
700      - bug fix in advect.F
701    o shelfice:
702      - separate shelfice load anomaly from pload (breaks with time
703        dependent forcing), => introduce constant field shelficeLoadAnomaly.
704        Its default is 0., but it may be computed more cleverly from (unknown)
705        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
706        done offline. A good approximation of the pressure load anomaly is
707        necessary to avoid large initial adjustment processes underneath
708        deep-reaching shelfice.
709      - small fix in ISOMIP shelfice_thermodynamics
710      - add more sophisticated thermodynamics of Hellmer (1989), this is
711        now the default
712      - give a few constants more intuitive names
713    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
714      if bulk formulae are used in long integration (especially EmPmR). Turn
715      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
716      if balancePrintMean, the imbalance that is substracted is printed to
717      STDOUT.
718    o fix bug (typo) in obcs_apply_eta.F
719    o add a new package shelfice which enables us to model the circulation
720      underneath shelf-ice with draughts of hundreds of meters.
721     - works
722     - to do: + include improved thermodynamics
723              + check whether kSurfC (from model/inc/SURFACE.h) can be used
724                instead of new field kTopC
725              + can we use topoFile, Ro_surf and existing code in ini_depth.F
726                instead of new field R_shelfIce and new code in ini_depth.F
727                and ini_mask_etc.F?
728              + adjust vertical mixing schemes?
729    o seaice pkg:
730     - add a cpp-flag to include a simple formula for a salinity dependent
731       freezing point of sea water at the surface
732     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
733       meridional stresses are now different (and hopefully correct)
734    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
735       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
736       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
737    o pkg/diagnostics: add options and parameters for regional-statistics
738       diagnostics ; define regions by reading a region-mask from a file
739       (might add other options later)
740    o pkg/bulk_force:
741     - add option and parameters to use AIM surface-flux formulae.
742     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
743       others forcing fields (defined in PARM05, parameter file "data") are loaded
744       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
745     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
746     - use the right EXCH call for uwind,vwind (to work on CS-grid).
747     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
748       and parameters (note: calcWindStress replaces .NOT.readwindstress).
749     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
750    
751    checkpoint58
752    o add "--embed-source" option to genmake2 which, when the supporting
753      tools can be compiled (as determined by genmake2) will turn on the
754      embed_files package which then embeds the entire MITgcm source code
755      (*.[fFhc] + Makefile) used for the build within the executable
756      - requested by CNH but off by default
757      - adds a paltry <9MB to the mitgcmuv executable in most cases
758      - only writes the output when useEMBEDSRC in eedata is true
759    o clean up 3-dim. relaxation codes:
760      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
761      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
762      * Thanks to Tom Haine for testing!
763    
764    checkpoint57z_post
765    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
766      affects output (@ truncation level) of exp. plume_on_slope ; updated.
767    o fix the pickup behavior for obcs in combination with ptracers
768    o fix a bug in ptracers_external_fields_load
769    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
770      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
771    o transfered surface NH pressure to eta field (if exactConserv).
772    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
773         and update lab_sea output.txt file.
774    o completing 3-dim. relaxation code: additional term
775         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
776      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
777      * At compile time, in "EXF_OPTIONS.h" set
778          #define  ALLOW_CLIMTEMP_RELAXATION
779          #define  ALLOW_CLIMSALT_RELAXATION
780      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
781          tauThetaClimRelax3Dim = 15552000.0,
782          tauSaltClimRelax3Dim  = 15552000.0,
783      * 3 cases:
784          1) Use a constant-in-time 3-dim. field
785          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
786          3) Real-time relax. to time-evolving prescribed field
787    o Adding Laplacian-type smoothness constraint on
788      initial and boundary (forcing) controls (ic, bc)
789      * enable at compile-time via
790        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
791      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
792      * Absolute scale somewhat unclear so far
793      * no area weighting was included since no other cost term does so far
794    
795    checkpoint57y_post
796    First step for a NLFS adjoint
797    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
798    o new init. routines for calc_r_star, calc_surf_dr
799    o still need to deal with ini_masks_etc
800    o testreport seemed happy
801    checkpoint57y_pre
802    
803    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
804    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
805    o add new offset feature to offline pkg (plus minor cleanup)
806    o cfc fixes for final year of integration
807    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
808      be in GCHEM_OPTIONS).
809    
810    checkpoint57x_post
811    o fix testreport Pb in multiple test experiment.
812    o cleanup our namelist syntax in verification:
813      - make it more F95 standards compliant (some work still needed)
814      - allows the vast majority of our tests to work with gfortran
815    o Non-Hydrostatic:
816     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
817     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
818    o Allow to apply AB on T,S rather than on AB(gT,gS):
819     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
820     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
821       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
822     - need a "clever" read_pickup to restart from the other AB formulation
823    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
824    o remove some unused variables (reduces number of compiler warnings)
825    o adjoint
826      * Disable useVariableViscosity for adjoint for time being
827        (there are a number of extensive recomputations)
828      * Initialize certain variables needed for adjoint
829    
830    checkpoint57w_post
831    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
832                 fix the singleCpuIO RS version of MDSWRITEFIELD
833       and add a WARNING if using globalFiles=T with multi-processors.
834    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
835      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
836    o tracer advection scheme:
837      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
838       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
839       was not very convenient).
840      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
841       (further tests needed for the implicit DST & Flux-Limiter schemes).
842    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
843      and sRef for convenience, handy, when you want to initialize
844      ptracers in a large domain with a constant non-zero value. Also,
845      untangle ptracers_init.F a little.
846    
847    checkpoint57v_post
848    o change dome exp. to use variable viscosity in side-drag terms.
849    o remove all the files from the cfc_offline test since they are now
850      incorporated into tutorial_cfc_offline which has been producing
851      identical results for a few days of testing
852    o add new parameter: sideDragFactor to enable half-slip-side BC
853      and change side-drag S/R to use viscosity from mom_calc_visc
854      (can switch back by setting sideDragFactor=0.); affects results at
855      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
856       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
857    o vorticity & strain are now computed without masking, to account for
858      no-slip-side BC in variable viscosity calculation ; mask is applied
859      anyway later on, before computing advection/coriolis terms.
860    o modify exp4 to test new obcs support for reading from external files
861      and for passive tracers
862    o fix behavior of ptracers_monitor when monitor output is written to a
863      netcdf-file; still not independent of monitor.F (writes in the same
864      file).
865    o change default value of tRef (put a uniform, meaningful value for ocean
866      & atmos) and initialize sRef (was missing, as Martin mentioned).
867    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
868      to be proportional to enstrophy dissipation length.  Thus,
869       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
870      This is now consistent with Smagorinsky and with the manual.
871    
872    checkpoint57u_post
873    o OBCS and PTRACERS: add open boundary support for passive tracers
874      - either use homogenous (pseudo) v.Neumann conditions or prescribe
875        OB-values from file; this is not different from the way theta and salinity
876        are treated
877      - however, Orlanski-radiation conditions are not supported, and the model
878        will stop if you use pTracers and Orlanski at the same time.
879      - beefed up the rountine obcs_external_fields_load: now only those open
880        boundary values are overwritten with values from files for which there
881        are really files, otherwise the OB-fields remain untouched. This makes
882        it possible to use different OBs at different ends of the domain (as
883        with EXF)
884    o reduce number of exch calls in shap_filt (s2).
885    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
886      truncation level) 4/5 MLAdjust test results (11&12 digits match).
887    
888    checkpoint57t_post
889    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
890    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
891      same truncation, independent of the face number: affects affects several
892      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
893    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
894      note that biharmonic viscosity + no-slip was not tested in any experiment.
895    o fix bug in non-linear free-surf side-drag ; generate new output for
896      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
897    o make mnc honor the writeBinaryPrec flag for most kinds of output
898    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
899    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
900      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
901    o add brackets in multi-terms sum to get same truncation, independent of
902      the face number (manage to get exactly same value of gU,gV at the cs-edge)
903      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
904    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
905      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
906      a maximum grid-scale Reynolds number.  Also, changes all length calculations
907      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
908      Suggested values of viscosity parameters found in mom_calc_visc.
909      Many new viscosity diagnostics available.
910    
911    checkpoint57s_post
912    o Add clearing-house for viscosity calculations, mom_calc_visc and
913      correct numerous bugs in LeithD and Smagorinsky discretizations.  
914      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
915      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
916      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
917      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
918      The Strain-Tension form is now called with useStrainTensonVisc=.true.
919      ViscAhStrain and viscAhTension are now retired.
920    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
921    o In response to JMC's bug report, genmake2 now ignores any soft-links
922      that it finds in the *current* directory when searching for files.
923      Soft-links found in any other source directories will still work as
924      they did before.
925    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
926      a C routine to unlimit the stack size
927    o mnc-ify pkg/aim snapshot vars
928    o mnc-ify pkg/land as requested by Daniel
929    o various changes to mnc including:
930      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
931      - output can now be grouped so that all files within a group
932          change the ITER portion of their names in lock-step together
933      - can now read ("global") PER-FACE (in addition to PER-TILE) files
934          and works with both EXCH1 and EXCH2 (but needs more testing)
935      - writing works for all verification test cases w/ g77 on Linux
936    
937    checkpoint57r_post
938    o make MNC variable initialization happen earlier
939    o add diagnostics for (almost) each term of the momentum Eq.
940    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
941    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
942    o remove MINIMAL_TAVE_OUTPUT option ;
943      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
944    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
945      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
946    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
947    o add time-dependent SST, SSS control
948    o cost terms in ecco/ modularized (new cost_generic.F)
949    o cost_averages routines are modularized (new cost_averagesgeneric.F)
950    o new infrastructure for seaice model vs. obs misfits in seaice/
951      * driver from the_main_loop.F is seaice_cost_driver.F
952      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
953      * gradient check in Exp. 6a of natl_box_adjoint/
954    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
955      (see README file)
956    
957    checkpoint57q_post
958    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
959    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
960      - bug was reported by Jean-Michel and Ian Fenty
961    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
962      update exp. cpl_aim+ocn output.
963    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
964      Needed for high-res. runs with large global files
965      to be able to limit tapelev size
966    o Changed some tests for adjoint:
967      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
968      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
969      * global_ocean.90x40x15/ back to default 3-level checkpointing
970    o Modifications to enable scripted COMMON to MODULE conversion
971      * verification/OpenAD/code/ has necessary scripts and description;
972      * converts, compiles and runs successfully;
973    
974    checkpoint57p_post
975    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
976    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
977      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
978    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
979    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
980      (was already the case for dissipation with mom_vecinv,
981       and also the case for grad.PhiHyd when staggered-timeStep)
982      This will allow to put dissipation out-off the AB time-stepping.
983     Unfortunately, affects truncation error. Update output of exp. that "fails"
984      (cg2d matching number) and leave the others for later: front_relax(10),
985      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
986      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
987    
988    checkpoint57o_post
989    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
990      (2) its ready to be documented during the 20050801 DocFest
991    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
992      for ideal_2D_oce and lab_sea on linux_ia32_g77
993    o set to #undef CTRL_SET_OLD_MAXCVARS_30
994      in global1x1_tot/code_seaice_adj to access indices 32, 33
995      (worth another tag)
996    
997    checkpoint57n_post
998    o adding precip control xx_precip 32
999    o adding swflux control xx_swflux 33
1000    o Replacing 10 forcing penalty cost routines by 1 generic.
1001    o Implementing partitioning in time-mean and variable adjustment
1002      for atmos. state.
1003    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1004    o in natl_box_adjoint:
1005      * updated exp 1 to 10
1006        (but does not have time-mean vs. variable split results yet)
1007    o updated global1x1/*_seaice_adj/
1008      to incorporate latest changes
1009    o enable useSingleCpuIO for mdsio vector routines
1010      (applies in particular to tapelev I/O)
1011    o removed inefficient K-loop in all active_file*control*.F
1012    
1013    checkpoint57m_post
1014    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1015      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1016    o pkg/exch2: filling of face-corner halo regions is optional
1017      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1018    
1019    checkpoint57l_post
1020     tag before updating tutorials (pre-release-2)
1021    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1022       for output and interpolation of input fields onto model grid)
1023    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1024       Affects results of exp. rotating_tank ; update output.txt.
1025    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1026          and taking the square quantity and/or using a fraction-weight field.
1027    o fix aim_diagnostics_init.F mate numbers.
1028    o add mnc output capability to diagnostics/diagstat and update
1029      our cvsignore files for the ACSII output generated
1030    
1031    checkpoint57k_post
1032    o lab_sea now uses diagnostics package and provides a suite of
1033      new EXF diagnostics output.
1034    
1035    checkpoint57j_post
1036    o exf
1037      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1038        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1039        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1040      * extended diagnostics output
1041        - now includes all EXF variables
1042        - hs, hl moved to common block
1043        - separate S/R for diagnostics, called after ctrl vector is added
1044        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1045        - EXFqnet contains true Qnet (i.e. includes qsw)
1046      * updated verif. lab_sea, global_with_exf
1047      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1048        to ensure that diagnostics sees a true EXFqnet
1049    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1050    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1051      several times with different frequencies.
1052    o mnc-ify the thsice package as requested by Daniel Enderton
1053      - the monitor--MNC output needs work
1054      - many attributes need to be added (most are currently blank)
1055    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1056      - many attributes need to be added (most are currently blank)
1057    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1058    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1059    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1060      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1061         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1062    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1063     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1064    
1065    checkpoint57i_post
1066    o Diagnostics package was changed: diagnostic allocation is now deactivated
1067      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1068    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1069      add 1rst Order upwind vertical Shear.
1070    o add a quick fix for A/B checkpointing in OFFLINE mode
1071    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1072      end-run around the C/Fortran linking horror in eesup/src/timers.F
1073    o added pkg/runclock: allows user to terminate run based on wall clock
1074    o added non-hydrostatic scaling parameter: nh_am2
1075    o pkg/my82: futile attempt to make results compiler-independent by adding
1076      some "_d 0", etc. no effect.
1077    o for mnc output, fill the 'T' coordinate var with myTime and create a
1078      separate 'iter' variable for iteration count
1079    o pkg/diagnostics:
1080      add new capability: output of Global/Regional & per-level statistics ;
1081      tested against monitor output (including land & thSIce) on various exp.
1082    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1083    
1084    checkpoint57h_done
1085      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1086      data.diagnostics, data.gchem, data.ptracers) is done.
1087    
1088    o pkg/diagnostics: prepare for Global/Regional statistics.
1089      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1090    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1091      and rename it: DIFFERENT_MULTIPLE
1092    
1093    checkpoint57h_post
1094    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1095    o pkg/diagnostics: change output frequency, now in seconds (instead
1096      of Nb of iterations). This requires to change data.diagnostics.
1097    checkpoint57h_pre
1098    
1099    o in mnc, let the user create the output dir if both mnc_outdir_date
1100      and mnc_outdir_num are false
1101    o add fflags() to pkg/diagnostics which allows one to specify, on a
1102      per-file basis, the file precision [default behavior is unchanged]
1103    o added diagnostics to pkg/kpp, including computation of mixed layer
1104      depth based on a temperature/density criterion
1105    o updated verification/natl_box to test the new pkg/kpp diagnostics
1106    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1107    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1108    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1109      not mnc -- this mistake was found by JMC and is now corrected
1110    
1111    checkpoint57g_post
1112    o add Adams-Bashforth 3rd Order time stepping:
1113      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1114      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1115    checkpoint57g_pre
1116    
1117    o make lambda[Theta,Salt]ClimRelax spatially varying
1118      (default remains spatially uniform constant based on tau)
1119    o added new control variables
1120      * init. uVel, vVel, etanN
1121      * lambda[Theta,Salt]ClimRelax
1122    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1123      (suggested by G. Forget)
1124    
1125    checkpoint57f_post
1126    o add parameter "baseTime" = model base time = time at iteration zero
1127      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1128      account for baseTime shift
1129    o move Coriolis arrays from PARAMS.h to GRID.h
1130    checkpoint57f_pre
1131    
1132    o mnc-ifying the seaice package
1133    o introduced an alternative length scale calculation for use in the limiting
1134      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1135    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1136    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1137      as well as grad(vort3).  Made it compatible with both approximate form
1138      for the cubed sphere and full form of these gradients.  Added flag
1139      useFullLeith to select between approximate and full form.  
1140    o add "d0" in getcon.F to reduce differences between compilers/platforms
1141      update output.txt of exp. fizhi-gridalt-hs
1142    o change port_rand funtion to allow to set the seed.
1143    o fix obscure MNC bug involving conversion between reals and integers
1144      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1145        new version is now more standards-compliant
1146    o adjoint-related modifications
1147      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1148      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1149      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1150    
1151    checkpoint57e_post
1152    o Adding eddy stress controls a la Ferreira et al.
1153    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1154    
1155    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1156      update output.txt of exp. fizhi-gridalt-hs
1157    o add more "Z" dimensions and associated coordinate vars to MNC
1158    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1159    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1160      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1161      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1162      months and years.  Requires pkg/cal.
1163    o diagnostics: add pickup functionality
1164      - off by default for backwards compatibility
1165      - current version only uses MDSIO -- MNC will be added
1166    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1167    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1168    
1169    checkpoint57d_post
1170    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1171    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1172      output from the diagnostics package
1173    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1174    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1175      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1176    o add coordinate variables to the MNC output from the diagnostics package
1177    o change MNC-flags default value: true when useMNC=TRUE
1178    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1179      the ability (off by default) to read the grid information using MNC
1180    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1181    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1182    o do snap-shot diagnostics at the middle of the time-interval (instead of
1183      at the end).
1184    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1185      new test for AIM with thSIce + slab-ocean
1186    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1187    o move state variable diagnostics to the beginning of the time step ;
1188      (note: still needs some work specially for snap-shot diagnostics)
1189      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1190    
1191    checkpoint57c_post
1192    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1193    o generate new output.txt files on faulks with g77 & the new -ieee option
1194    checkpoint57c_pre
1195    
1196    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1197      update output.txt of exp. global_ocean.90x40x15
1198    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1199      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1200    o add saltFlux(+File) forcing capability with periodicExternalForcing
1201    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1202    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1203    o improvements for the MNC output from DIAGNOSTICS:
1204      - correct handling of the unlimitied dimension
1205      - all dims now have associated coordinate variables
1206      - variables located at U, V, and Corner ("Z") points are now written
1207        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1208        *all* data points are output
1209    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1210    o added pkg/seaice/seaice_monitor.F
1211    o mdsio_readfield.F can now read files visible only to master MPI process.
1212    o pkg/seaice: some test code for ice-modified ocean stress
1213    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1214      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1215      spurious negative numbers for precipitation and humidity.  Will cause
1216      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1217    o pkg/ctrl/
1218      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1219        May be enabled via doPackDiag
1220      *  introduce z-scaling of
1221         + gradient (doZscalePack) and
1222         + control (doZscaleUnpack)
1223    o pkg/mdsio/
1224      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1225      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1226    
1227    checkpoint57b_post
1228    o simplify options in diagnostics_fill arguments (remove weird combinations)
1229    o fix MNC coordinate variables so that they now contain per-face index
1230      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1231      general, EXCH2 grids are only aligned to a "local" coordinate system
1232    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1233    o Implement instantaneous output within pkg diagnostics:
1234      setting a negative frequency in data.diagnostics produces
1235     "snap-shot" output (as opposed to time-average if freq > 0)
1236    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1237      NOTE: change ptracer diagnostics name: use 2 characters to work with
1238            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1239    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1240      becomes the coordinate variable for the 'T' dimension
1241    o add CF-style coordinate variables to MNC
1242      - just a first cut:  numbers are meaningless on the cubesphere and
1243        missing along the T axis but otherwise it works!
1244    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1245    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1246    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1247      this is based directly on what the model compute, so that the content of
1248      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1249    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1250    o clean up build options files for SunOS, in particular
1251      - remove -traditional from xmakedepend
1252      - change -xarch=v9 to -xarch=native for f77
1253      - restore use of make (not gmake)
1254      - add CC=gcc if using g77
1255    o changes per discussion of AM, JMC, & EH3 today:
1256      - move redundant "grid" variables out of "state" -- in preparation of
1257        creating proper CF-style coordinate variables and in recognition
1258        that any/all grid variables can be easily copied (eg. w/NCO) from
1259        the grid files into any of the other NetCDF files
1260      - *always* output grid variables with MDSIO (this will eventually be
1261        changed)
1262      - output MNC grid file if useMNC is true
1263    o every instance of _END_MASTER() has been found and replaced with
1264      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1265      preprocessors
1266    o re-arrange diagnostics pkg initialisation:
1267     - allow each package to extend the available diagnostics list
1268     - add some checking and fix small problems (multi-threaded, ...)
1269     - new S/R diagnostics_fill (replace fill_diagnostics):
1270       look through the short list of active diag. (instead of the long list)
1271       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1272    
1273    checkpoint57a_post
1274    o this set of changes restores TAMC compatibility
1275      tested for global_ocean.90x40x15 adjoint on trough
1276      (what a pain)
1277    
1278    checkpoint57a_pre
1279    o some modifs in tools/build_options for sunos
1280    o call ctrl_pack for ctrl at end for optimcycle=0
1281    
1282    checkpoint57
1283    o add horizontal bi-harmonic viscosity for vertical velocity
1284      - new parameter viscA4W (defaults to viscA4)
1285      - affects only non-hydrostatic code
1286      - to be done: no-slip lateral boundary conditions
1287    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1288    o implement Implicit Vertical advection for pTracers
1289    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1290      (implemented also for implicit vertical diffusion & advection)
1291    o OBCS: extend application of tracer open boundary conditions
1292      to a strip beyond the boundary of width Olx/Oly
1293    o add call monitor to TAF set of required calls (flow directives)
1294      and include in natl_box_adjoint
1295    o untangle a few ifdefs related to cost, ctrl, autodiff
1296      untangel a few ALLOW_ECCO_OPTIMIZATION
1297    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1298      (theta2, salt2 in ecco_cost_weights)
1299    
1300    checkpoint56c_post
1301    o OBCS as control variables
1302      - update ctrl_ad_diff.list, obcs_ad_diff.list
1303      - remove balance of obcs controls from default
1304      - fix index bug nobcs in ctrl_init
1305      - fix dummy fields filen in ctrl_pack
1306      - add dummy weights for obcs
1307    o lsopt: comment out fort.94 output
1308    o optim:
1309      - remove unnecessary header files
1310      - adjusted namelists
1311      - add xerbla.F to Makefile
1312    o exf:
1313      - multiple modifications of exf_check_range
1314      - unit change in exf_init_runoff from [m/year] to [m/s]
1315    o mdsio:
1316      - i/o-vector change debugLevel from debLevA to debLevB
1317    
1318    checkpoint56b_post
1319    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1320      is called from DO_THE_MODEL_IO
1321      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1322      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1323      - clean up PTRACERS_WRITE_TIMEAVE a little
1324    o add another verification experiment that tests both the cfc-pkg and
1325      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1326      reactive tendencies treated inline with regular timestepping
1327    o testreport previously did a lousy job of comparing small numbers, so
1328      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1329      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1330      testreport.
1331    o ptracers_monitor: bug fix for MPI
1332    
1333    checkpoint56a_post
1334    o GCHEM: finish reorganizating the package
1335      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1336        (introduces another 3D-array for each passive tracer, but only if
1337        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1338        gchemTendency is not needed because the timestep is done separately)
1339      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1340      - GCHEM is now---more or less cleanly---separate from PTRACERS
1341      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1342        so clear to me how that should be done in a general way.
1343    o CFC: improve formatting of output in CFC_ATMOS
1344    o PTRACERS:
1345      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1346        that ALL experiments with ptracers enable can be checked. This makes
1347        GCHEM_MONITOR obsolete.
1348      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1349        monitorFreq
1350      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1351    o add PTRACERS (PTR0[1-5]) to testreport output
1352  o exf_check_range:  o exf_check_range:
1353    * default changed to .TRUE.    * default changed to .TRUE.
1354    * will check values for niter0 if debLevA, every timestep if debLevB    * will check values for niter0 if debLevA, every timestep if debLevB
# Line 24  o GCHEM: Line 1370  o GCHEM:
1370      be replaced by a 3D array that is computed before thermodynamics; for      be replaced by a 3D array that is computed before thermodynamics; for
1371      this, the tracer ID iTracer had to be included into the parameter list      this, the tracer ID iTracer had to be included into the parameter list
1372      of ptracers_forcing      of ptracers_forcing
1373    - set up forward_step for a call to gchem_forcing, that will replace    - set up forward_step to call gchem_forcing, that will replace
1374      gchem_forcing_int in ptracers_forcing      gchem_forcing_int in ptracers_forcing
1375    - cleaning up    - cleaning up
1376  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

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