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revision 1.268 by jmc, Fri Mar 12 20:57:21 2004 UTC revision 1.820 by mlosch, Tue May 22 11:34:32 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o change error catch in calc_r_star to improve vectorization
8    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
9      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
10    
11    checkpoint59b
12    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
13      - export/import (between ocean & coupler) fields needed for ocean DIC.
14    o pkg/seaice:
15      - get rid of three more exchanges seaice_calc_viscosities (required
16        different loop boundaries in seaice_lsr and seaice_ocean_stress)
17      - bug fix in seaice_ocean_stress (update of lab_sea required)
18      - reduce loop boundaries to necessary minimum also in seaice_evp
19      - go back to the old way of computing deltaC/Z as the adjoint likes that
20        better
21    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
22      passive tracer to an Age Tracer) + update output.txt
23    o pkg/exf:
24      - implement A-grid / C-grid selection for wind-stress input files.
25      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
26      for now, in exf_bulk_largeyeager04.F only :
27      - change implementation for case where windspeed + 2. components wind-stress
28        are read-in. AND use rhoConstFresh to convert evap.
29    o pkg/seaice:
30      - use correct EXCH_UV for wind-forcing (on A-grid).
31      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
32        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
33    o pkg/exf:
34      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
35      EXF_INTERPOLATION:
36      - merge global_with_exf/code version of exf_interp_read.F
37        to the main code ;
38      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
39        reading the file ; Important: This options needs to be defined to recover
40        previous code.
41        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
42      - no longer loose real*8 precision along the way when using exf_iprec=64.
43    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
44      - change discretisation of evp-solver in order to avoid another exchange
45        (changes lab_sea) and clean up a little
46      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
47        help the adjoint (this also changes the results slightly)
48      - add a few "_d 0" where they had been missing in seaice_evp.F
49      - cleaning up: remove unused seaice_calc_rhs.F
50    o pkg/exf: some cleaning-up:
51      - change various "constants" into runtime parameters
52      - cleaned-up Large&Yeager04 routine which should eventually
53        replace exf_bulkformulae.F (changed names of S/R and CPP)
54        and merged various ALLOW_ATM_WIND options
55     only used with thsice pkg (in thsice_get_exf.F):
56      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
57        which are used when useStabilityFct_overIce=TRUE (= the default)
58      - change default values of ice & snow emissivity and scale downward LW
59        by ice & snow emissivity.
60    o pkg/thsice:
61     fix few little problems, in thsice_calc_thickn.F:
62      - growth vertically (and not laterally) if iceFrac == iceMaskMax
63      - melt laterally only if hIce < hThinIce (as the comments say)
64      and in thsice_extend.F:
65      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
66      - start to form ice as soon as the minimum ice-volume is reachable.
67     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
68      and cpl_aim+ocn
69    o pkg/kpp
70     - move computation of surface related input fields to KPP into a new
71       subroutine kpp_forcing_surf.F
72     - remove wrong (within bi,bj loops) EXCH calls.
73     - little cleaning (add argument myThid in last position, cvs header ...)
74     - for now, fix conservation problem by exchanging KPPviscAz (may not
75       be the best fix)
76    o pkg/seaice
77     - check for inconsistent evp parameter/cpp-flag combination
78     - remove leftover errIO flat for obsolete name list error handling
79    o OpenAD
80     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
81    
82    checkpoint59a
83    o pkg/seaice: some parameter clarifications and a little bit of clean up
84    o pkg/thsice: rename run-time parameters:
85       himin       -> hIceMin
86       himin0      -> hThinIce
87       hihig       -> hThickIce
88       i0          -> i0swFrac
89       transCoef   -> bMeltCoef
90       frac_energy -> fracMelting
91      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
92       with default values (for now) that do not change the results.
93      remove old version of thsice vars advection in pkg/seaice.
94    o in FFIELDS.h:
95      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
96      - make pLoad & sIceLoad always available (but still only used if
97         ATMOSPHERIC_LOADING is #define).
98    o pkg/kpp: replaced _KPP_RL with _RL
99    o bug fixes for vertical diffusivity computations when both KPP and
100        3D diffusivity arrays are used.
101    o pkg/seaice: fix bug in evp solver, while doing that
102      - change (improve?) discretization of stress computations for both
103        cgrid-lsr and evp solver
104      - add a new routine to compute strain rates
105      - the above changes lab_sea results
106      - add no slip conditions for evp solver (off by default), lsr-version
107        may follow
108      - fix exchange for shear at Z-points (does not change lab_sea)
109      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
110        (to force the user to pick a time step since there is not "safe" way
111        of choosing it)
112      - add principal stress diagnostics
113      - rearrange fields for evp a little to avoid having to call a: too many
114        exchanges and b: exchanges for stress trensor components which we do
115        not have.
116      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
117        of evp, complete rewrite for lsr case (latter is does not yet work
118        in all cases)
119    o pkg/kpp: add code to have mixing in shelf ice caverns
120      - add myThid to all kpp routines (long overdue)
121    
122    checkpoint59
123    o pkg/exf:
124      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
125        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
126      - move exf header files from lower_case.h to UPPER_CASE.h ;
127        add missing cvs Header & Name
128      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
129      - add namelist param. selectStressGridPosition, exf_monFreq
130      - retire many _CLIM routines, and remove data.exf_clim
131        + params moved to data.exf
132        + climsst, climsss now handled by exf_set_gen, i.e.
133          climss?period=0 refers to constant field,
134          climss?period=-12 to monthly forcing
135      - split up namelists in data.exf
136    o pkg/seaice:
137      - remove seaice_exch and seaice_exch_uv
138      - remove superfluous exchange of theta
139      - add myThid to seaice_budget_ocean/ice
140      - add new interface for atmospheric wind forcing (C-grid only)
141        + new routine
142        + two new field (taux, tauy for stress over ice)
143        + removed one global field (DAIRN) for C-grid case only
144    o pkg/thsise
145      - 2nd set of modifs for thsice adjoint in conjunction with exf
146    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
147    
148    checkpoint58y_post
149    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
150      vertical diffusivity, similar to that in MOM4; turned on using
151      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
152      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
153    o Added capability for 3D specification of background vertical diffusion
154      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
155      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
156      "data" file that contains the 3D vertical diffusivity coefficients.
157    o ice dynamics (pkg/seaice) with thsice thermodynamics:
158      - add code within pkg thsice to advect & diffuse sea-ice fields
159      similar to (and will replace) what has been added in  seaice_advdiff.F,
160      but: - conserving Mass, Heat & Salt.
161           - better when using non-linear advection scheme (not yet fully tested)
162           - can also be used in atmospheric set-up (for now, only the diffusion).
163    
164    checkpoint58x_post
165    o IO option for global-file compact format:
166      - add options when generating topology (utils/exch2/matlab-topology-generator)
167      - add I/O capability (pkg/mdsio).
168      - adapt utils/matlab/rdmds.m to read this format.
169      for now long-line format not yet supported by pkg/mdsio (& exch2).
170    o shelfice: add a few diagnostics
171    
172    checkpoint58w_post
173    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
174      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
175      (and replace horiVertRatio in NH code).
176      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
177                         and tutorial_plume_on_slope (sensitive to truncation)
178    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
179      directly to drive seaice model (C-grid only)
180    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
181     - reintroduce computation of wind from stress,
182     - compute tau (in exf_bulkformulae.F) from windstress averaged to
183       mass points to avoid tau = 0
184     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
185    o rdmnc.m: make it work with "global" files created with gluemnc
186    o rdmnc.m : some improvements in dealing with singleton dimension
187      (tested on all testreport mnc output files).
188    o genmake2: disable pkg/profiles if netcdf test fails.
189    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
190    o move call to cal_readparms up to make calendar parameters/variable available
191      to all packages
192    
193    checkpoint58v_post
194    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
195      useDynP_inEos_Zc tested.
196    o pkg/exf: changes to properly interpolate/mask/scale initial fields
197    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
198      and portions thereof.  See read_cs.txt for description and examples.
199    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
200      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
201      following the great-circle arc between those 2 points.
202    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
203      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
204    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
205     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
206     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
207     - still needs work (not working with some options ; efficiency to improve)
208       and serious testing.
209     - use this scheme for temperature & salinity in 2 advection test exp.:
210       advect_xy & advect_xz, respectively.
211    
212    checkpoint58u_post
213    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
214    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
215    o testreport: add option "-skipdir" to skip some test.
216    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
217      momentum calculation.
218    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
219    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
220      remove checkpoint.F and the_correction_step.F (no longer used);
221      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
222    o add option (linFSConserveTr) to correct for tracer source/sink due to
223      Linear Free surface
224    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
225    o pkg/thsice: fix reading mnc-pickups
226    
227    checkpoint58t_post
228    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
229    o pkg/mdsio:
230     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
231       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
232       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
233     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
234     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
235       either MDS_READ_FIELD or MDS_WRITE_FIELD )
236     - new S/R (to replace MDSWRITEMETA), which allows to write more
237       informations (variable names, time ...) to meta files.
238     - modify rdmds.m to give back the meta file content.
239    o pkg/diagnostics: change vertical interpolation to be safer, and more
240       flexible (define p-levels to interpolate to in data.diagnostics);
241      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
242       diagnostic pointer.
243    o pkg/seaice: more cleaning up of seaice_growth, added many comments
244    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
245    o fix multi-category seaice:
246     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
247       SEAICE_MULTICATEGORY
248     - fix short wave heat flux
249    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
250       and allow to use EVP solver. Change forward lab_sea: test both EVP
251       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
252    o Initial check-in of lab_sea adjoint
253      (very similar to natl_box_adjoint/code_seaice)
254      * used C-grid and EVP solver
255      * used KPP, GM/Redi
256      * uses inAdExact=.TRUE.
257      * gradient checks fail for both ADM and TLM
258        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
259        f.d. gradients actually seem more problematic than ADM, TLM gradients;
260        issue is related to forward mismatch between g77 an ifort
261    o pkg/seaice: overhaul of thermodynamics
262     - growth.F and groatb.F are replaced by new routine seaice_growth.F
263     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
264     - move a few global fields out of SEAICE.h into seaice_growth.F and
265       make them 2D (FICE/QNETO/ ...)
266     - remove FO (it is the same as QNETO)
267     - introduce a few local fields to avoid modifying external fields such
268       as atemp, etc.
269    
270    checkpoint58s_post
271    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
272      changed exf_set_gen.F so that
273        genperiod=0 means input file is one time-constant field and
274        genperiod=-12 means input file contains 12 monthly means
275    o CG2D: use pre-computed solver main-diagonal (stored in common block);
276      this affects truncation error ; generate new output file for exp. which
277      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
278        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
279        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
280        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
281        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
282        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
283    o start implementation of deep-atmosphere and anelastic formulation
284    o verification: remove 2nd copy of input files and use script "prepare_run"
285      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
286    o mom_common/vecinv/fluxform: fix a few initialisation isssues
287    o profiles: fix for multithreaded case
288    
289    o diagnostics: rename few diags:
290      s/'PRESSURE'/'RCENTER '/g
291      s/'TICE    '/'oceFreez'/g
292      s/'TAUX    '/'oceTAUX '/g
293      s/'TAUY    '/'oceTAUY '/g
294      s/'SWFLUX  '/'oceQsw  '/g
295      s/DIFx/DFxE/g
296      s/DIFy/DFyE/g
297      and add few ocean-forcing diagnostics:
298      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
299    o modifications to pkg/seaice/growth.F and budget.F, which change results of
300      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
301      as actual snow thickness.  It now refers everywhere to effective snow
302      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
303    
304    checkpoint58r_post
305    o modifications to pkg/seaice/growth.F, which change results of
306      lab_sea experiment: fixes pertain to melting snow over open water, to
307      masking EVAP under sea ice, and to using the correct AREA variable for
308      computations of EVAP, PRECIP, HSNOW, and GHEFF
309    o add ability to read bathy, salt, and theta using MNC (off by def)
310    o add flooding algorithm and advection of HSNOW for pkg/seaice;
311      both are turned off by default and do no change any results
312    o seaice advection with pkg/thsice: a step toward the use of non-linear
313      advection scheme, but #ifdef or commented out for now (requires more EXCH).
314    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
315      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
316      in natl_box (affects results @ truncation level: update output.txt)
317    o multi-threading and IO:
318      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
319      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
320        (needed to work with SingleCpuIO): tested in all verif. exp.
321    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
322      affects the results (but none of the verification test uses this scheme).
323    o Adding some pkg/diagnostics capability to pkg/seaice
324      (will certainly be subject to changes)
325    o ctrl: adding new control variables:
326      lwflux, lwdown, evap, snowprecip, apressure, runoff
327    
328    checkpoint58q_post
329    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
330      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
331      high_res_cube configuration by 4% on Columbia.
332    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
333      add (in global_with_exf/code) a version of EXF_INTERP_READ without
334      dynamical allocation (seems to work in multi-threaded).
335    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
336      single CPU io) so that TAF does not have to see EESUPPORT.h
337    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
338    
339    checkpoint58p_post
340    o obcs: stop if obcs is used with useCDscheme = .true.
341    o shelfice:
342     - fix a sign error so that no slip at shelfice interface works
343     - remove stop for combination non-hydrostatic code and shelfice. That does
344       not mean, that the results are correct, but at least they are numerically
345       stable
346    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
347    o added adjoint exch routined for all exch*3d* routines
348      and updated flow directives
349    
350    checkpoint58o_post
351    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
352      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
353    o change controling S/R for writing pickup file (new S/R do_write_pickup)
354      and clean-up reading/writing of pickup files.
355    o fix local version of read/write pickup (NH part) in rotating_tank/code
356    o simplify EXCH interface:
357     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
358     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
359    o added the regrid package
360    o shelfice:
361     - add a simple boundary layer scheme to reduce noise
362     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
363    
364    checkpoint58n_post
365    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
366       local variable (not in common block).
367    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
368      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
369      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
370        to work with SingleCpuIO.
371    o add "_d 0" to real constant of pkg/cfc subroutines ;
372       update exp. cfc_exemple & tutorial_cfc_offline output files.
373    o multi-threading and IO:
374      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
375        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
376      - barrier before and after reading.
377      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
378      - avoid using MDS_WRITELOCAL for LAND pkg output.
379      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
380        common-block variables ; Allows multi-threading with master-thread IO.
381    o change default MAX_NO_THREADS from 32 to 4 ;
382      and stop cleanly when MAX_NO_THREADS is too small.
383    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
384    
385    checkpoint58m_post
386    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
387       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
388    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
389       keep global_ocean.90x40x15 (for AD testing) with former secondary test
390       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
391    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
392        add MITgcm_tutorials (= code + all the tutorials)
393    o ecco, option to compute cost for total ssh (mean+anom)
394    o consistent with addition of ptracer and ssh in pkg/profiles
395    o profiles: adding ptracer and ssh
396    o testreport: change multi-test output-file name
397      (from output.txt.{name} to output.{name}.txt)
398    o profiles: now ok for mutli-tiles case
399    o seaice: add 4 parameters for different advection schemes for area,
400      (effective) seaice thickness, enthalphy, and snow height. Their default
401      is the standard parameter SEAICEadvScheme
402    o calc_gw:
403     - add cosFacU in zonal viscous flux (harmonic.visc.).
404     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
405       of tutorial_plume_on_slope.
406    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
407    o calc_gw: true flux-form, account for horizontal grid spacing.
408      update rotating_tank results, but not plume_on_slope (affected at
409      truncation level, 11 digits).
410    
411    checkpoint58l_post
412    o calc_gw:
413     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
414     - remove side-drag for now (need to fix it); update plume_on_slope results.
415     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
416    o commit code to make SST/SSS weights spatially variable
417      (based on either variable in-situ or variable initial T/S weights)
418    o pkg/ecco:
419      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
420        now based on horizontally varying weights wthetaLev, wsaltLev
421      * cost_averagesflags now returns year indices in addition to day, month
422      * sflux balance is performed on annual basis
423        (sflxumm, sfluxmm2, bal_sfluxmm)
424      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
425        including separate counting and multipliers
426    o pkg/rbcs
427      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
428    
429    checkpoint58k_post
430    o testreport:
431     - always build in dir. "build" (if not there, mkdir build instead of building
432       & running in input)
433     - run in dir run (if it exists), in build otherwise.
434     - call prepare_run (if input/prepare_run exists)
435     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
436    o pkg/exf modifications to interpolation and rotation routines for more
437       reasonable treatment of North Pole singularity: for tracers North Pole
438       value is set to northernmost zonal-mean value, for zonal velocity it is
439       set to zero, and for meridional velocity it is set to northernmost value.
440    o pkg/exf/exf_check_range.F
441     - add tile index to diagnostics and move stop statement to the very
442       end of the routine.
443    o pkg/diagnostics: (diagnostics_main_init.F)
444      define title of isomorphic variables according to the current config.
445    o pkg/thsice with pkg/seaice dynamics:
446    - fix domain of computation (interior only, required for exf) and do exchanges
447    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
448    o towards a standard way of dealing with multi-threading in MONITOR
449      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
450    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
451       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
452    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
453    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
454    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
455       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
456    o tracer advection:
457     - clean-up and simplify calc_common_factors.F
458     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
459       advection subroutine (but still not used within DST advection S/R)
460    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
461    
462    checkpoint58j_post
463    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
464      from file (collects calls previously in FORWARD_STEP)
465    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
466    o adjoint store dir. adjusted accordingly
467    o genmake2
468      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
469    
470    checkpoint58i_post
471    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
472      on wind stress (SEAICEstressFactor defaults to 1.)
473    o Total number of Timers is finite (<=40): comment out 2 non-essential one
474      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
475    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
476      on CS-grid: no longer loosing mass.
477    o exf & curvilinear-grid: no longer modify longitude xC & xG.
478    o pkg/ggl90: fix sloppy output and fix a bug
479    o pkg/seaice: added SEAICEuseEVPpickup parameter
480      - Set to false in order to start EVP solver with
481        non-EVP pickup files when using SEAICEuseEVP
482      - fix sign error in diffusion in seaice_calc_rhs
483    
484    checkpoint58h_post
485    * Modifications for bottom topography control
486      o replace hFacC by _hFacC at various places
487      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
488      o add non-self-adjoint cg2d_nsa
489      o update autodiff support routines
490      o re-initialise hfac after ctrl_depth_ini
491      o works for 5x5 box, doesnt work for global_ocean.90x40x15
492    * Adding verification for 5x5 box (4-layer) bottom topography control
493    
494    checkpoint58g_post
495    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
496       used for mean seasonal cycle, mean diurnal cycle); add an example
497       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
498    o pkg/ggl90:
499      - add parameter (minimum surface kinetic energy)
500      - fix bug (avoiding division by zero)
501    o couple pkg/thsice to pkg/seaice:
502      - modify advection in seaice to accomodate new scalar fields to be advected
503      - only muliDimAdection scheme work with seaice/thsice
504      - mapping of thsice-variables to seaice-variables, back and forth
505      - does not break the verification experiments, but does not give the
506        desired results either
507    o pkg/seaice
508      - make (default) second order advection a bit less confusing?
509    
510    checkpoint58f_post
511    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
512      to pkg/seaice):
513      - new routines thsice_map_exf and thsice_get_exf provide the interface
514      - add an additional formal parameter to thsice_solve4temp
515    o pkg/exf:
516      - add new fields wspeed, snowprecip (to be able to couple to thsice)
517      - correct Stefan-Boltzmann constant
518      - new parameter for longwave surface emittance
519      - separate some stuff from exf_bulkformulae into new routines  
520        exf_radiation, exf_wind
521      - add new parameters and constants: longwave emissivity for ocean, ice
522        and snow, evaporation parameters over ice
523      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
524        either wind from stress or stress from wind
525    o pkg/thSIce:
526    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
527    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
528       and THSICE_CALC_THICKN
529    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
530    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
531      to make debugging easier.
532    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
533    o pkg/bulk_force:
534      - clean-up comments and parameters ;
535      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
536    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
537      generate new output for test-experiment: aim.5l_cs.thSI
538    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
539      testreport accordingly
540    
541    checkpoint58e_post
542    o SEAICE_CGRID adjoint done
543    o R_STAR adjoint implemented.
544      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
545      * need to sort out init. of h0facc, etc.
546    o Make pkg/profile fully independent of ecco,cost, etc. stuff
547      to be able to use it in pure forward.
548    
549    checkpoint58d_post
550    o upgrade simple test-experiment to tutorial example:
551     step.1: duplicate the experiment and (step.2) will remove the old copy.
552      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
553      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
554      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
555      tutorial_global_oce_biogeo    <- copy of dic_example
556      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
557      tutorial_plume_on_slope       <- copy of plume_on_slope
558      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
559      tutorial_global_oce_optim     <- empty for now (David ?)
560      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
561     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
562    o correct a sign problem in cost_scat.F
563    o obcs and ptracers: fix boundary conditions for advections schemes
564      with larger stencil
565    o thsice adjoint: start
566    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
567      completeness
568    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
569      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
570    o ptracers adjoint:
571      * avoid extensive recomputatations
572      * fix missing re-init. of gptr (missed by TAF)
573    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
574      me to turn off the excessive output to STDOUT that this package produces
575    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
576      and add those terms in Vector-Invariant formulation.
577    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
578      if the control period (xx_hfluxperiod etc) is 0
579    o in profiles pkg, clean routines and fix details
580    o in ecco pkg, reading ssh data:
581      fix problem in case the model does not start at iter0=0
582    o fix mnc-pickup/restart for ptracers
583    o new package prifiles:
584      code to compute profile-based cost by Gael Forget
585      (modifs in ecco, ctrl, autodiff)
586    o Benign bug fix in initialization (spotted by M. Mazloff) of
587      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
588    
589    checkpoint58c_post
590    o adjoint: finish NLFS adjoint and provide reference output in
591      verification/global_ocean.90x40x15/results_ad_nlfs
592    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
593      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
594      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
595      with SEAICE_CGRID defined.
596    o move calendarDumps from "data" to "data.cal" and clean-up the code
597      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
598    o add useEXF & useCAL flags (for now, set in hard-coded way)
599    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
600      (were missing in NH mode, and wrong in quasihydrostatic mode).
601      waiting for Chris updated version of calc_gw to add those CALLs.
602    o fix bug in quasihydrostatic S/R ;
603      add a test for this option: global_ocean.90x40x15.qshyd
604    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
605      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
606    o add on/off flag useOffLine for package OFFLINE
607    o seaice:
608      - modify advection so that it works also on the C-grid
609      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
610        problem in multi-tile runs with C-grid
611      - add flags for clipping ice velocities and/or masking solver forcing
612      - fix drag (ocean on ice) formulation and a bug that caused noise in the
613        C-grid solver
614      - added a few comments to seaice_diffusion.F
615      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
616        are now exclusive)
617      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
618        required re-ordering the code a little:
619       + make DAIRN global variable (defined in SEAICE)
620       + move computation of the viscosities eta and zeta into a new separate
621         routine (because I need to recompute them in seaice_ocean_stress.F)
622    
623    checkpoint58b_post
624    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
625      update output.txt of exp. aim.5l_cs.thSI
626    o various mnc cleanups and improvements:
627      + shrink lookup tables by factor of ~4
628      + better error reporting when running out of lookup space
629      + able to handle longer path/file names (up to 500 chars)
630    o adjoint:
631      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
632      - TBD: "hidden" mom_vecinv recomp. in dynamics
633    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
634     (allow to differentiate between forcing components using new integer flags:
635      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
636     and add new flag to put Dissipation tendency out of Adams-Bashforth.
637    o ecco
638      - enable trend removal from SSH anomaly obs.
639    o adjoint
640      - a fix for PmEpR when #undef EXACT_CONSERV
641      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
642      - try to fix "hidden" recomp. in forward_step for NLFS
643        (NLFS seems broken sometimes after I checked it in)
644    o seaice:
645     - add c-grid version of the dynamic solver:
646       + three new routines that are the c-grid substitute lsr, dynsolver
647         and ostres
648       + put a few fields that were local to dynsolver into global common
649         blocks, so that I can move the computation of stresses etc into
650         seaice_lsr (saves coding but may break the adjoint).
651     - replace more hardwired parameters by runtime parameters
652     - add ice masks that mask the rhs of the implicit solvers where there
653       is no ice (commented out in seaice_dynsolver, because i am not sure
654       if this works properly), eventually this should replace the clipping
655       of ice velocities in seaice_dynsolver to +/-40cm/s.
656    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
657      include it only where its needed
658    o move balancing of fluxes before the call of external_forcing_surf
659    o seaice:
660      - correct units of turning angles (now they are really in degrees)
661      - move computation of GWATX/Y out of main routine into dynsolver
662      - initialize GWATX/Y in seaice_init
663    o Apply mask on Fresh-Water flux (needed for SSH forcing).
664      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
665    o seaice: add runtime flags for turning angles (default to zero)
666    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
667      and trend from exf forcing and ctrl control adjustments
668    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
669      (since checkpoint57x_post)
670    o change the default rotation period to 86164.s = the Earth rotation
671    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
672      and based on a reference stratification. Tested within hs94.cs-32x32x5.
673    o seaice advection: add code for choosing between the default (2nd order
674      central differences) and multiDim advection schemes provided by
675      pkg/generic_advdiff
676    o seaice:
677      - removed all references to SEAICE_GRID.h fields from
678        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
679        (cubed-sphere configuration will change a little)
680      - grid computations in seaice_init are obsolete now.
681      - cleaned up code a little so that is easier to read (hopefully).
682      - added new (better?) discretizations of default advection and diffusion
683        (turn on with SEAICEuseFluxForm)
684      - replace 1 in 3d global fields by kSurface in growth.F
685      
686    checkpoint58a_post
687    o seaice:
688      - bug fix in advect.F
689    o shelfice:
690      - separate shelfice load anomaly from pload (breaks with time
691        dependent forcing), => introduce constant field shelficeLoadAnomaly.
692        Its default is 0., but it may be computed more cleverly from (unknown)
693        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
694        done offline. A good approximation of the pressure load anomaly is
695        necessary to avoid large initial adjustment processes underneath
696        deep-reaching shelfice.
697      - small fix in ISOMIP shelfice_thermodynamics
698      - add more sophisticated thermodynamics of Hellmer (1989), this is
699        now the default
700      - give a few constants more intuitive names
701    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
702      if bulk formulae are used in long integration (especially EmPmR). Turn
703      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
704      if balancePrintMean, the imbalance that is substracted is printed to
705      STDOUT.
706    o fix bug (typo) in obcs_apply_eta.F
707    o add a new package shelfice which enables us to model the circulation
708      underneath shelf-ice with draughts of hundreds of meters.
709     - works
710     - to do: + include improved thermodynamics
711              + check whether kSurfC (from model/inc/SURFACE.h) can be used
712                instead of new field kTopC
713              + can we use topoFile, Ro_surf and existing code in ini_depth.F
714                instead of new field R_shelfIce and new code in ini_depth.F
715                and ini_mask_etc.F?
716              + adjust vertical mixing schemes?
717    o seaice pkg:
718     - add a cpp-flag to include a simple formula for a salinity dependent
719       freezing point of sea water at the surface
720     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
721       meridional stresses are now different (and hopefully correct)
722    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
723       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
724       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
725    o pkg/diagnostics: add options and parameters for regional-statistics
726       diagnostics ; define regions by reading a region-mask from a file
727       (might add other options later)
728    o pkg/bulk_force:
729     - add option and parameters to use AIM surface-flux formulae.
730     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
731       others forcing fields (defined in PARM05, parameter file "data") are loaded
732       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
733     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
734     - use the right EXCH call for uwind,vwind (to work on CS-grid).
735     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
736       and parameters (note: calcWindStress replaces .NOT.readwindstress).
737     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
738    
739    checkpoint58
740    o add "--embed-source" option to genmake2 which, when the supporting
741      tools can be compiled (as determined by genmake2) will turn on the
742      embed_files package which then embeds the entire MITgcm source code
743      (*.[fFhc] + Makefile) used for the build within the executable
744      - requested by CNH but off by default
745      - adds a paltry <9MB to the mitgcmuv executable in most cases
746      - only writes the output when useEMBEDSRC in eedata is true
747    o clean up 3-dim. relaxation codes:
748      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
749      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
750      * Thanks to Tom Haine for testing!
751    
752    checkpoint57z_post
753    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
754      affects output (@ truncation level) of exp. plume_on_slope ; updated.
755    o fix the pickup behavior for obcs in combination with ptracers
756    o fix a bug in ptracers_external_fields_load
757    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
758      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
759    o transfered surface NH pressure to eta field (if exactConserv).
760    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
761         and update lab_sea output.txt file.
762    o completing 3-dim. relaxation code: additional term
763         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
764      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
765      * At compile time, in "EXF_OPTIONS.h" set
766          #define  ALLOW_CLIMTEMP_RELAXATION
767          #define  ALLOW_CLIMSALT_RELAXATION
768      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
769          tauThetaClimRelax3Dim = 15552000.0,
770          tauSaltClimRelax3Dim  = 15552000.0,
771      * 3 cases:
772          1) Use a constant-in-time 3-dim. field
773          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
774          3) Real-time relax. to time-evolving prescribed field
775    o Adding Laplacian-type smoothness constraint on
776      initial and boundary (forcing) controls (ic, bc)
777      * enable at compile-time via
778        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
779      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
780      * Absolute scale somewhat unclear so far
781      * no area weighting was included since no other cost term does so far
782    
783    checkpoint57y_post
784    First step for a NLFS adjoint
785    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
786    o new init. routines for calc_r_star, calc_surf_dr
787    o still need to deal with ini_masks_etc
788    o testreport seemed happy
789    checkpoint57y_pre
790    
791    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
792    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
793    o add new offset feature to offline pkg (plus minor cleanup)
794    o cfc fixes for final year of integration
795    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
796      be in GCHEM_OPTIONS).
797    
798    checkpoint57x_post
799    o fix testreport Pb in multiple test experiment.
800    o cleanup our namelist syntax in verification:
801      - make it more F95 standards compliant (some work still needed)
802      - allows the vast majority of our tests to work with gfortran
803    o Non-Hydrostatic:
804     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
805     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
806    o Allow to apply AB on T,S rather than on AB(gT,gS):
807     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
808     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
809       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
810     - need a "clever" read_pickup to restart from the other AB formulation
811    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
812    o remove some unused variables (reduces number of compiler warnings)
813    o adjoint
814      * Disable useVariableViscosity for adjoint for time being
815        (there are a number of extensive recomputations)
816      * Initialize certain variables needed for adjoint
817    
818    checkpoint57w_post
819    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
820                 fix the singleCpuIO RS version of MDSWRITEFIELD
821       and add a WARNING if using globalFiles=T with multi-processors.
822    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
823      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
824    o tracer advection scheme:
825      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
826       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
827       was not very convenient).
828      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
829       (further tests needed for the implicit DST & Flux-Limiter schemes).
830    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
831      and sRef for convenience, handy, when you want to initialize
832      ptracers in a large domain with a constant non-zero value. Also,
833      untangle ptracers_init.F a little.
834    
835    checkpoint57v_post
836    o change dome exp. to use variable viscosity in side-drag terms.
837    o remove all the files from the cfc_offline test since they are now
838      incorporated into tutorial_cfc_offline which has been producing
839      identical results for a few days of testing
840    o add new parameter: sideDragFactor to enable half-slip-side BC
841      and change side-drag S/R to use viscosity from mom_calc_visc
842      (can switch back by setting sideDragFactor=0.); affects results at
843      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
844       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
845    o vorticity & strain are now computed without masking, to account for
846      no-slip-side BC in variable viscosity calculation ; mask is applied
847      anyway later on, before computing advection/coriolis terms.
848    o modify exp4 to test new obcs support for reading from external files
849      and for passive tracers
850    o fix behavior of ptracers_monitor when monitor output is written to a
851      netcdf-file; still not independent of monitor.F (writes in the same
852      file).
853    o change default value of tRef (put a uniform, meaningful value for ocean
854      & atmos) and initialize sRef (was missing, as Martin mentioned).
855    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
856      to be proportional to enstrophy dissipation length.  Thus,
857       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
858      This is now consistent with Smagorinsky and with the manual.
859    
860    checkpoint57u_post
861    o OBCS and PTRACERS: add open boundary support for passive tracers
862      - either use homogenous (pseudo) v.Neumann conditions or prescribe
863        OB-values from file; this is not different from the way theta and salinity
864        are treated
865      - however, Orlanski-radiation conditions are not supported, and the model
866        will stop if you use pTracers and Orlanski at the same time.
867      - beefed up the rountine obcs_external_fields_load: now only those open
868        boundary values are overwritten with values from files for which there
869        are really files, otherwise the OB-fields remain untouched. This makes
870        it possible to use different OBs at different ends of the domain (as
871        with EXF)
872    o reduce number of exch calls in shap_filt (s2).
873    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
874      truncation level) 4/5 MLAdjust test results (11&12 digits match).
875    
876    checkpoint57t_post
877    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
878    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
879      same truncation, independent of the face number: affects affects several
880      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
881    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
882      note that biharmonic viscosity + no-slip was not tested in any experiment.
883    o fix bug in non-linear free-surf side-drag ; generate new output for
884      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
885    o make mnc honor the writeBinaryPrec flag for most kinds of output
886    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
887    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
888      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
889    o add brackets in multi-terms sum to get same truncation, independent of
890      the face number (manage to get exactly same value of gU,gV at the cs-edge)
891      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
892    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
893      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
894      a maximum grid-scale Reynolds number.  Also, changes all length calculations
895      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
896      Suggested values of viscosity parameters found in mom_calc_visc.
897      Many new viscosity diagnostics available.
898    
899    checkpoint57s_post
900    o Add clearing-house for viscosity calculations, mom_calc_visc and
901      correct numerous bugs in LeithD and Smagorinsky discretizations.  
902      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
903      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
904      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
905      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
906      The Strain-Tension form is now called with useStrainTensonVisc=.true.
907      ViscAhStrain and viscAhTension are now retired.
908    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
909    o In response to JMC's bug report, genmake2 now ignores any soft-links
910      that it finds in the *current* directory when searching for files.
911      Soft-links found in any other source directories will still work as
912      they did before.
913    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
914      a C routine to unlimit the stack size
915    o mnc-ify pkg/aim snapshot vars
916    o mnc-ify pkg/land as requested by Daniel
917    o various changes to mnc including:
918      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
919      - output can now be grouped so that all files within a group
920          change the ITER portion of their names in lock-step together
921      - can now read ("global") PER-FACE (in addition to PER-TILE) files
922          and works with both EXCH1 and EXCH2 (but needs more testing)
923      - writing works for all verification test cases w/ g77 on Linux
924    
925    checkpoint57r_post
926    o make MNC variable initialization happen earlier
927    o add diagnostics for (almost) each term of the momentum Eq.
928    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
929    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
930    o remove MINIMAL_TAVE_OUTPUT option ;
931      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
932    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
933      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
934    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
935    o add time-dependent SST, SSS control
936    o cost terms in ecco/ modularized (new cost_generic.F)
937    o cost_averages routines are modularized (new cost_averagesgeneric.F)
938    o new infrastructure for seaice model vs. obs misfits in seaice/
939      * driver from the_main_loop.F is seaice_cost_driver.F
940      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
941      * gradient check in Exp. 6a of natl_box_adjoint/
942    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
943      (see README file)
944    
945    checkpoint57q_post
946    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
947    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
948      - bug was reported by Jean-Michel and Ian Fenty
949    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
950      update exp. cpl_aim+ocn output.
951    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
952      Needed for high-res. runs with large global files
953      to be able to limit tapelev size
954    o Changed some tests for adjoint:
955      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
956      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
957      * global_ocean.90x40x15/ back to default 3-level checkpointing
958    o Modifications to enable scripted COMMON to MODULE conversion
959      * verification/OpenAD/code/ has necessary scripts and description;
960      * converts, compiles and runs successfully;
961    
962    checkpoint57p_post
963    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
964    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
965      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
966    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
967    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
968      (was already the case for dissipation with mom_vecinv,
969       and also the case for grad.PhiHyd when staggered-timeStep)
970      This will allow to put dissipation out-off the AB time-stepping.
971     Unfortunately, affects truncation error. Update output of exp. that "fails"
972      (cg2d matching number) and leave the others for later: front_relax(10),
973      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
974      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
975    
976    checkpoint57o_post
977    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
978      (2) its ready to be documented during the 20050801 DocFest
979    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
980      for ideal_2D_oce and lab_sea on linux_ia32_g77
981    o set to #undef CTRL_SET_OLD_MAXCVARS_30
982      in global1x1_tot/code_seaice_adj to access indices 32, 33
983      (worth another tag)
984    
985    checkpoint57n_post
986    o adding precip control xx_precip 32
987    o adding swflux control xx_swflux 33
988    o Replacing 10 forcing penalty cost routines by 1 generic.
989    o Implementing partitioning in time-mean and variable adjustment
990      for atmos. state.
991    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
992    o in natl_box_adjoint:
993      * updated exp 1 to 10
994        (but does not have time-mean vs. variable split results yet)
995    o updated global1x1/*_seaice_adj/
996      to incorporate latest changes
997    o enable useSingleCpuIO for mdsio vector routines
998      (applies in particular to tapelev I/O)
999    o removed inefficient K-loop in all active_file*control*.F
1000    
1001    checkpoint57m_post
1002    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1003      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1004    o pkg/exch2: filling of face-corner halo regions is optional
1005      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1006    
1007    checkpoint57l_post
1008     tag before updating tutorials (pre-release-2)
1009    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1010       for output and interpolation of input fields onto model grid)
1011    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1012       Affects results of exp. rotating_tank ; update output.txt.
1013    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1014          and taking the square quantity and/or using a fraction-weight field.
1015    o fix aim_diagnostics_init.F mate numbers.
1016    o add mnc output capability to diagnostics/diagstat and update
1017      our cvsignore files for the ACSII output generated
1018    
1019    checkpoint57k_post
1020    o lab_sea now uses diagnostics package and provides a suite of
1021      new EXF diagnostics output.
1022    
1023    checkpoint57j_post
1024    o exf
1025      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1026        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1027        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1028      * extended diagnostics output
1029        - now includes all EXF variables
1030        - hs, hl moved to common block
1031        - separate S/R for diagnostics, called after ctrl vector is added
1032        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1033        - EXFqnet contains true Qnet (i.e. includes qsw)
1034      * updated verif. lab_sea, global_with_exf
1035      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1036        to ensure that diagnostics sees a true EXFqnet
1037    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1038    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1039      several times with different frequencies.
1040    o mnc-ify the thsice package as requested by Daniel Enderton
1041      - the monitor--MNC output needs work
1042      - many attributes need to be added (most are currently blank)
1043    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1044      - many attributes need to be added (most are currently blank)
1045    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1046    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1047    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1048      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1049         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1050    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1051     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1052    
1053    checkpoint57i_post
1054    o Diagnostics package was changed: diagnostic allocation is now deactivated
1055      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1056    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1057      add 1rst Order upwind vertical Shear.
1058    o add a quick fix for A/B checkpointing in OFFLINE mode
1059    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1060      end-run around the C/Fortran linking horror in eesup/src/timers.F
1061    o added pkg/runclock: allows user to terminate run based on wall clock
1062    o added non-hydrostatic scaling parameter: nh_am2
1063    o pkg/my82: futile attempt to make results compiler-independent by adding
1064      some "_d 0", etc. no effect.
1065    o for mnc output, fill the 'T' coordinate var with myTime and create a
1066      separate 'iter' variable for iteration count
1067    o pkg/diagnostics:
1068      add new capability: output of Global/Regional & per-level statistics ;
1069      tested against monitor output (including land & thSIce) on various exp.
1070    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1071    
1072    checkpoint57h_done
1073      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1074      data.diagnostics, data.gchem, data.ptracers) is done.
1075    
1076    o pkg/diagnostics: prepare for Global/Regional statistics.
1077      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1078    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1079      and rename it: DIFFERENT_MULTIPLE
1080    
1081    checkpoint57h_post
1082    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1083    o pkg/diagnostics: change output frequency, now in seconds (instead
1084      of Nb of iterations). This requires to change data.diagnostics.
1085    checkpoint57h_pre
1086    
1087    o in mnc, let the user create the output dir if both mnc_outdir_date
1088      and mnc_outdir_num are false
1089    o add fflags() to pkg/diagnostics which allows one to specify, on a
1090      per-file basis, the file precision [default behavior is unchanged]
1091    o added diagnostics to pkg/kpp, including computation of mixed layer
1092      depth based on a temperature/density criterion
1093    o updated verification/natl_box to test the new pkg/kpp diagnostics
1094    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1095    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1096    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1097      not mnc -- this mistake was found by JMC and is now corrected
1098    
1099    checkpoint57g_post
1100    o add Adams-Bashforth 3rd Order time stepping:
1101      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1102      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1103    checkpoint57g_pre
1104    
1105    o make lambda[Theta,Salt]ClimRelax spatially varying
1106      (default remains spatially uniform constant based on tau)
1107    o added new control variables
1108      * init. uVel, vVel, etanN
1109      * lambda[Theta,Salt]ClimRelax
1110    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1111      (suggested by G. Forget)
1112    
1113    checkpoint57f_post
1114    o add parameter "baseTime" = model base time = time at iteration zero
1115      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1116      account for baseTime shift
1117    o move Coriolis arrays from PARAMS.h to GRID.h
1118    checkpoint57f_pre
1119    
1120    o mnc-ifying the seaice package
1121    o introduced an alternative length scale calculation for use in the limiting
1122      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1123    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1124    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1125      as well as grad(vort3).  Made it compatible with both approximate form
1126      for the cubed sphere and full form of these gradients.  Added flag
1127      useFullLeith to select between approximate and full form.  
1128    o add "d0" in getcon.F to reduce differences between compilers/platforms
1129      update output.txt of exp. fizhi-gridalt-hs
1130    o change port_rand funtion to allow to set the seed.
1131    o fix obscure MNC bug involving conversion between reals and integers
1132      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1133        new version is now more standards-compliant
1134    o adjoint-related modifications
1135      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1136      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1137      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1138    
1139    checkpoint57e_post
1140    o Adding eddy stress controls a la Ferreira et al.
1141    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1142    
1143    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1144      update output.txt of exp. fizhi-gridalt-hs
1145    o add more "Z" dimensions and associated coordinate vars to MNC
1146    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1147    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1148      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1149      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1150      months and years.  Requires pkg/cal.
1151    o diagnostics: add pickup functionality
1152      - off by default for backwards compatibility
1153      - current version only uses MDSIO -- MNC will be added
1154    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1155    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1156    
1157    checkpoint57d_post
1158    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1159    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1160      output from the diagnostics package
1161    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1162    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1163      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1164    o add coordinate variables to the MNC output from the diagnostics package
1165    o change MNC-flags default value: true when useMNC=TRUE
1166    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1167      the ability (off by default) to read the grid information using MNC
1168    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1169    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1170    o do snap-shot diagnostics at the middle of the time-interval (instead of
1171      at the end).
1172    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1173      new test for AIM with thSIce + slab-ocean
1174    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1175    o move state variable diagnostics to the beginning of the time step ;
1176      (note: still needs some work specially for snap-shot diagnostics)
1177      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1178    
1179    checkpoint57c_post
1180    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1181    o generate new output.txt files on faulks with g77 & the new -ieee option
1182    checkpoint57c_pre
1183    
1184    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1185      update output.txt of exp. global_ocean.90x40x15
1186    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1187      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1188    o add saltFlux(+File) forcing capability with periodicExternalForcing
1189    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1190    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1191    o improvements for the MNC output from DIAGNOSTICS:
1192      - correct handling of the unlimitied dimension
1193      - all dims now have associated coordinate variables
1194      - variables located at U, V, and Corner ("Z") points are now written
1195        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1196        *all* data points are output
1197    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1198    o added pkg/seaice/seaice_monitor.F
1199    o mdsio_readfield.F can now read files visible only to master MPI process.
1200    o pkg/seaice: some test code for ice-modified ocean stress
1201    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1202      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1203      spurious negative numbers for precipitation and humidity.  Will cause
1204      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1205    o pkg/ctrl/
1206      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1207        May be enabled via doPackDiag
1208      *  introduce z-scaling of
1209         + gradient (doZscalePack) and
1210         + control (doZscaleUnpack)
1211    o pkg/mdsio/
1212      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1213      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1214    
1215    checkpoint57b_post
1216    o simplify options in diagnostics_fill arguments (remove weird combinations)
1217    o fix MNC coordinate variables so that they now contain per-face index
1218      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1219      general, EXCH2 grids are only aligned to a "local" coordinate system
1220    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1221    o Implement instantaneous output within pkg diagnostics:
1222      setting a negative frequency in data.diagnostics produces
1223     "snap-shot" output (as opposed to time-average if freq > 0)
1224    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1225      NOTE: change ptracer diagnostics name: use 2 characters to work with
1226            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1227    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1228      becomes the coordinate variable for the 'T' dimension
1229    o add CF-style coordinate variables to MNC
1230      - just a first cut:  numbers are meaningless on the cubesphere and
1231        missing along the T axis but otherwise it works!
1232    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1233    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1234    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1235      this is based directly on what the model compute, so that the content of
1236      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1237    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1238    o clean up build options files for SunOS, in particular
1239      - remove -traditional from xmakedepend
1240      - change -xarch=v9 to -xarch=native for f77
1241      - restore use of make (not gmake)
1242      - add CC=gcc if using g77
1243    o changes per discussion of AM, JMC, & EH3 today:
1244      - move redundant "grid" variables out of "state" -- in preparation of
1245        creating proper CF-style coordinate variables and in recognition
1246        that any/all grid variables can be easily copied (eg. w/NCO) from
1247        the grid files into any of the other NetCDF files
1248      - *always* output grid variables with MDSIO (this will eventually be
1249        changed)
1250      - output MNC grid file if useMNC is true
1251    o every instance of _END_MASTER() has been found and replaced with
1252      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1253      preprocessors
1254    o re-arrange diagnostics pkg initialisation:
1255     - allow each package to extend the available diagnostics list
1256     - add some checking and fix small problems (multi-threaded, ...)
1257     - new S/R diagnostics_fill (replace fill_diagnostics):
1258       look through the short list of active diag. (instead of the long list)
1259       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1260    
1261    checkpoint57a_post
1262    o this set of changes restores TAMC compatibility
1263      tested for global_ocean.90x40x15 adjoint on trough
1264      (what a pain)
1265    
1266    checkpoint57a_pre
1267    o some modifs in tools/build_options for sunos
1268    o call ctrl_pack for ctrl at end for optimcycle=0
1269    
1270    checkpoint57
1271    o add horizontal bi-harmonic viscosity for vertical velocity
1272      - new parameter viscA4W (defaults to viscA4)
1273      - affects only non-hydrostatic code
1274      - to be done: no-slip lateral boundary conditions
1275    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1276    o implement Implicit Vertical advection for pTracers
1277    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1278      (implemented also for implicit vertical diffusion & advection)
1279    o OBCS: extend application of tracer open boundary conditions
1280      to a strip beyond the boundary of width Olx/Oly
1281    o add call monitor to TAF set of required calls (flow directives)
1282      and include in natl_box_adjoint
1283    o untangle a few ifdefs related to cost, ctrl, autodiff
1284      untangel a few ALLOW_ECCO_OPTIMIZATION
1285    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1286      (theta2, salt2 in ecco_cost_weights)
1287    
1288    checkpoint56c_post
1289    o OBCS as control variables
1290      - update ctrl_ad_diff.list, obcs_ad_diff.list
1291      - remove balance of obcs controls from default
1292      - fix index bug nobcs in ctrl_init
1293      - fix dummy fields filen in ctrl_pack
1294      - add dummy weights for obcs
1295    o lsopt: comment out fort.94 output
1296    o optim:
1297      - remove unnecessary header files
1298      - adjusted namelists
1299      - add xerbla.F to Makefile
1300    o exf:
1301      - multiple modifications of exf_check_range
1302      - unit change in exf_init_runoff from [m/year] to [m/s]
1303    o mdsio:
1304      - i/o-vector change debugLevel from debLevA to debLevB
1305    
1306    checkpoint56b_post
1307    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1308      is called from DO_THE_MODEL_IO
1309      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1310      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1311      - clean up PTRACERS_WRITE_TIMEAVE a little
1312    o add another verification experiment that tests both the cfc-pkg and
1313      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1314      reactive tendencies treated inline with regular timestepping
1315    o testreport previously did a lousy job of comparing small numbers, so
1316      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1317      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1318      testreport.
1319    o ptracers_monitor: bug fix for MPI
1320    
1321    checkpoint56a_post
1322    o GCHEM: finish reorganizating the package
1323      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1324        (introduces another 3D-array for each passive tracer, but only if
1325        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1326        gchemTendency is not needed because the timestep is done separately)
1327      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1328      - GCHEM is now---more or less cleanly---separate from PTRACERS
1329      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1330        so clear to me how that should be done in a general way.
1331    o CFC: improve formatting of output in CFC_ATMOS
1332    o PTRACERS:
1333      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1334        that ALL experiments with ptracers enable can be checked. This makes
1335        GCHEM_MONITOR obsolete.
1336      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1337        monitorFreq
1338      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1339    o add PTRACERS (PTR0[1-5]) to testreport output
1340    o exf_check_range:
1341      * default changed to .TRUE.
1342      * will check values for niter0 if debLevA, every timestep if debLevB
1343      * STOP in exf_check_range if 'out of range'
1344      * range chosen generous to allow for potential extema
1345      TBD: a version with stricter range
1346           permitted range would be runtime parameters
1347    o GMredi:
1348      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1349      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1350      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1351    o GCHEM:
1352      - move call to GCHEM_FORCING_SEP, so that it is now called before
1353        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1354      - introduced a useGCHEM runtime flag and applied it everywhere.
1355      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1356        this flag is now only visible within GCHEM-pkg routines.
1357      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1358        be replaced by a 3D array that is computed before thermodynamics; for
1359        this, the tracer ID iTracer had to be included into the parameter list
1360        of ptracers_forcing
1361      - set up forward_step to call gchem_forcing, that will replace
1362        gchem_forcing_int in ptracers_forcing
1363      - cleaning up
1364    o small cleaning of exch2: remove files that are also in eesupp/src
1365    
1366    checkpoint56
1367    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1368    o mnc: cleanup "full" files--fixes out-of-memory problem
1369    o ECCO-GODAE
1370      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1371      * fully merged and updated from SIO code
1372        windstress sign change affects
1373        - exf_inscal_[u/v]stress
1374        - sign of xx_tau[u/v] adjustments
1375        - signs in cost_scat
1376      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1377      * natl_box_adjoint updated and compressed
1378      * 2-level checkpoint switch added
1379        (tested in EXP. 1 of natl_box_adjoint)
1380      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1381    o SVD
1382      * first complete, non-hacked version for SVD calculations
1383      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1384        performed via direct access files admtlm_vector.it????
1385        (via ctrl_[un]pack)
1386      * optimcycle is used for ARPACK iteration counter
1387        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1388      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1389        and add linear transforms where necessary
1390      * controls are initial/final SST, SSS (can be extended; need to check
1391        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1392    o mdsio: filename info to both stderr, stdout
1393    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1394      from sign change
1395    
1396    checkpoint55j_post
1397    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1398      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1399    o add consistent build directories and .cvsignore files to verification
1400    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1401    o make all subroutines 30 or less characters in length for certain older
1402      compilers to work (a thorough search only turns up two routines in
1403      pkg/ptracers)
1404    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1405      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1406    
1407    checkpoint55i_post
1408    o change arrays for total vertical diffusivity (2.D if explicit,
1409      3.D if implicit) ; each ptracer uses its own background value.
1410    o added mnc/NetCDF output capability to ocn_compon_interf
1411      - added bits to verification/cpl_aim+ocn so that it can run on
1412        ITRDA and other clusters without the mpirun "-wd" option
1413    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1414      configuration
1415    o give MNC the ability to create additional files rather than
1416      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1417      - the default is just less than 2GB which is a practical limit
1418        on many systems
1419    o Compute the non-local term using either KPP vertical diffusivity (=default)
1420       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1421    
1422    checkpoint55h_post
1423    o add verification test "vermix"
1424    o remove all the *_ioinc flags and replace with the single global
1425      outputTypesInclusive flag
1426    o allow to set a vertical profile of vertical diffusivity for T & S
1427    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1428    o useMNC moved from data.mnc to data.pkg
1429    
1430    checkpoint55g_post
1431    o Renaming carbon AD experiments to comply with testreport conventions
1432    o Updating adjoint of Held-Suarez hs94.1x64x5
1433    o Fixing directives for non-ECCO forward_step, after ECCO directives
1434      have been fixed to avoid recomp. of do_oceanic_phys
1435      Works well for global_ocean.90x40x15,
1436      but recomp. issue remains for carbon
1437    o Updating adjoint output for natl_box_adjoint after
1438      pkg/ecco has been modified (see taga c55d_post)
1439    
1440    checkpoint55f_post
1441    o rename to timeave_init_fixed
1442    
1443    checkpoint55e_post
1444    o some delicate re-shuffle of store directives to avoid one
1445      extra call of do_oceanic_physics
1446      affects ecco_the_main_loop.F, do_oceanic_physics.F
1447      checkpoint_lev1_directives.h
1448    o NB: this may break global_ocean adjoint temporarily,
1449      but it is clear how to fix it. Will do later, need this now.
1450    
1451    checkpoint55d_post
1452    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1453    o ecco_cost_weights is modified to 1x1 runs
1454    o modifs to allow observations to be read in as
1455      single file or yearly files
1456    o enable to read exf forcing fields as either
1457      single file or yearly files (flag useExfYearlyFields)
1458    checkpoint55d_pre
1459    
1460    o switch between 2-level and 3-level checkpointing
1461    o add ability of MNC to write local and "partial" (eg. 2D slices where
1462      the full 3D field is never actually stored) arrays to NetCDF files
1463      with the correct (that is, the complete multi-dimensional) set of
1464      array indicies
1465      - used in mom_vecinv() to write the diagFreq output
1466      - tested (demonstrated) in verification/aim.5l_cs
1467    o further mnc-ification
1468      - add verification/lab_sea to the list with mnc setups
1469      - fix undefined mnc v-names in cd_code
1470      - add kpp to mnc output (both snapshot and timeave)
1471    o non-hydrostatic code
1472      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1473        in calc_gw.F
1474      - defaults to viscAh
1475      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1476        friction or Leith) in non-hydrostatic mode, as long as there is
1477        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1478    o pkg/cost
1479      extend simple cost functions to treat time mean quantities
1480      (T,U,V) via cost_accumulate_state from cost_tile
1481    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1482        be 2 times larger than the minimum size the advection scheme requires.
1483        now get a perfect conservation of salt in advect_cs test-exp (updated)
1484    o GGL90 (Gaspar's TKE mixed layer)
1485      - add horizontal diffusion of TKE, requires exchanges in
1486        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1487        default. In OPA there is no horizontal diffusion of TKE but the
1488        mixing coefficients are computed from a horizontal average of TKE of
1489        6 points or so. I think that diffusion has a little more physical
1490        justification.
1491      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1492        was in vain)
1493      - mask tke-variable in ggl90_init
1494    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1495    o fix biharmonic diffusion on CS-grid.
1496    o more obcs stuff
1497      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1498        for reading boundary values. This routine is called from
1499        obcs_prescribe_read
1500      - updated obcs_check
1501      - changed sponge layer relaxation parameter units for days to seconds
1502      - turned off sponge layer by default
1503      - changed argument list of OBCS_CALC to myTime+deltaTclock
1504      - fixed about 35 bugs in obcs_external_fields_load
1505    
1506    checkpoint55c_post
1507    o obcs stuff
1508      - new runtime flags useOBCSprescribe, useOBCSbalance
1509      - re-arranged obcs_calc
1510      - moved exf_getobcs to obcs_prescibe_read
1511        obcs_prescibe_read is called after ORLANSKI stuff
1512        and independent of it (executable can contain all).
1513      - updated obcs_check
1514      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1515        These may be necessary only if tangential velocities are
1516        prescribed at OB, not sure, needs testing.
1517    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1518      which simplifies the calls and passes the ifc check-bounds test
1519    
1520    checkpoint55b_post
1521    o add a 2D scalar, Z location, exchange_2 routine.
1522    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1523      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1524      affects advect_cs results (for the wrong reason): update output.txt
1525    o use a more standard discretization for biharmonic viscosity ;
1526     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1527      affects results of dome set-up: update output.txt
1528    o fix gad_advection.F (CubedSphere part), back to version 1.23
1529    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1530    
1531    checkpoint55a_post
1532    o merged code to
1533      * prescribe/read time-dependent open boundaries
1534        (works in conjunction with exf, cal)
1535      * sponge layer code for open boundaries
1536      * each boundary N/S/E/W now has its own CPP option
1537        (healthy for the adjoint)
1538    
1539    checkpoint55
1540    o up-to-date adjoint of previous breaks
1541      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1542      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1543      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1544      - carbon: * remove tr1-related adjoint verification
1545                * add ptracer as control variable
1546    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1547      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1548    
1549    checkpoint54f_post
1550    o in verification/carbin/ remove experiment related to
1551      ALLOW_PASSIVE_TRACER (array tr1 etc)
1552      code_ad/ input_ad/ results_ad
1553    
1554    o add two new packages
1555      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1556        + subject to optimization (memory)
1557      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1558        + subject to reordering (many GOTOs in the original code)
1559        + so far opps is called for every (i,j) point, and then operates in
1560          the vertical; one may want to reorder the scheme in order operate in
1561          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1562          fields)
1563    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1564      - all verification tests compile and run with linux_ia32_g77
1565      - defaults are compatible with current input files--nothing
1566        should change if you were not previously using MNC
1567      - MNC output has been added in numerous places (eg. timeave)
1568        but there are still a few writes not yet do-able with MNC
1569        (this is in progress)
1570      - flags now allow for either/or/both use of MDSIO and MNC and
1571        documentation will soon follow
1572      - numerous small formatting cleanups for ProTeX
1573    o add version info (via BUILD_INFO.h) to MNC and stdout
1574    
1575    checkpoint54e_post
1576    o add two new packages
1577      - pp81 (Packanowski and Philander, 1981), Richardson number and
1578        stratification dependent mixing
1579      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1580      - these scheme operate in a similar manner as KPP (without ghat, of
1581        course), however there is only one diffusivity that is used for both
1582        temperature and salinity (and passive tracers)ç
1583    o add offline package
1584    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1585      provided by Stephanie Dutkiewicz
1586    o genmake2: add ability to search for C compilers and cleanup test output
1587      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1588    
1589    checkpoint54d_post
1590    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1591    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1592      leading to additional shift by 5 days each year of integration
1593       (i.e. leading to considerable offset over the years)
1594    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1595    o start with no AB and no initial filtering (staggerTimeStep):
1596      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1597    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1598      (external loading & cpl import/export stay in forward_step.F)
1599    o update coupling interface to work with new staggerTimeStep
1600    o change MDSIO ptracers_pickup.
1601    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1602    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1603    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1604    
1605    checkpoint54c_post
1606    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1607      this affects (truncation error) output.txt of test-exp:
1608       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1609    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1610    o change Qnet to always be the net heat flux, (+upward).
1611      affects (truncation error) output of natl_box exp.: updated
1612    o define the max number of passive tracers in PTRACERS_SIZE.h
1613    o start to test mnc routinely in exp0
1614    o add sea-ice loading (sIceLoad) as a new forcing field.
1615    
1616    checkpoint54b_post
1617    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1618       impressive on Altix and Opteron systems)
1619    o diagnostics can now write NetCDF files through the mnc package
1620    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1621    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1622    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1623      affects (truncation error) output of lab_sea & natl_box exp.: updated
1624    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1625    
1626    checkpoint54a_post
1627    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1628    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1629    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1630    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1631      + internal_wave (shift in writing cg2d_ini_res)
1632    checkpoint54a_pre
1633    
1634    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1635      - modified verification/lab_sea and natl_box_adjoint accordingly
1636    
1637    checkpoint54
1638    checkpoint53g_post
1639    o prepare splitting of thermodynamics: store convect.counter in common block
1640    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1641      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1642    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1643    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1644    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1645    o restore adjointability
1646    
1647    checkpoint53f_post
1648    o modifications that affect AIM experiment results (update output.txt):
1649      - no advection of S at top interface Nr (pkg/generic_advdiff)
1650      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1651    o AIM pkg:
1652      - include stability function into surf.Flux derivative relative to Tsurf
1653      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1654    
1655    checkpoint53e_post
1656    o merged cylindrical coord configuration
1657    o added rotating_tank experiment
1658    checkpoint53e_pre
1659    
1660    checkpoint53d_post
1661    o faulks upgraded: re-generate output.txt that have changed:
1662       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1663    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1664    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1665    o added Sadourny discretization of Coriolis
1666      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1667      - re-enabled use of omega3 (useAbsVorticity)
1668    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1669      vector-invariant equations
1670      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1671    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1672      hopefully without new bugs
1673      - still to do: biharmonic friction for non-hydrostatic w
1674    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1675    o regenerated output for global_ocean_ebm (using -ieee)
1676    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1677      of mom_common/
1678      - simple re-arrangement of instructions within computing loop
1679    checkpoint53d_pre
1680    
1681    checkpoint53c_post
1682    o new version of coupler for AIM+thSIce and Ocean models
1683     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1684     - land: change Evaporation of snow
1685     - aim with thSIce: fix bug in snow-precip.
1686    o changes to calc_gw.F
1687     - bug fix for w^2 term near the bottom boundary
1688     - (hopefully) improve the lateral slip boundary condtions for use with
1689        partial/looped cells
1690      - because the bug fix changes two verification experiments anyway (exp5
1691        and plume on slope), change the lateral boundary condition from half slip
1692        to the value of no_slip_sides
1693    o ebm package wasnt quite up to the parallel task. Fixed that.
1694    o Adjoint of EBM package + verification
1695      * TLM OK
1696      * ADM not sufficient accuracy yet (needs further testing)
1697    
1698    checkpoint53b_post
1699    o Commiting new energy balance model to repository
1700      * package is pkg/ebm
1701      * verif. is verification/global_ocean_ebm
1702      * references are in ebm_driver.F
1703    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1704    C        Global thermohaline circulation. Part I:
1705    C        Sensitivity to atmospheric moisture transport.
1706    C        J. Climate 12(1), 71-82
1707    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1708    C        Global thermohaline circulation. Part II:
1709    C        Sensitivity with interactive transport.
1710    C        J. Climate 12(1), 83-91
1711    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1712    C        Destabilization of the thermohaline circulation
1713    C        by atmospheric eddy transports.
1714    C        J. Climate 7(12), 1870-1882
1715    o Will need long integration testing.
1716    checkpoint53b_pre
1717    
1718    o created pkg/mom_common in preparation for variable viscosity code
1719    o renamed and split ini_mnc_io
1720    o pkg/land: only liquid water can diffuse or run-off
1721    o AIM using land: soil wetness availability account for snow
1722    o added printMapIncludesZeros to EEPARMS namelist
1723    
1724    checkpoint53a_post
1725    o restore TAMC compatiility for exf_constants.h
1726      (no usage of _d in .h)
1727    o Additional storing in KPP in an attempt to fix
1728      TAMC problem with adjoint of KPP code.
1729      (no success...)
1730      Identical code works fine with TAF.
1731    o Fixed verification/natl_box_adjoint experiments.
1732      Initial conditions for Experiments 4 and 5 are now
1733      set to "SEAICE_initialHEFF=0", which is more reasonable,
1734      and hence gives results closer to that of Experiment 2.
1735      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1736    
1737    checkpoint53
1738    o stable checkpoint with up to date adjoint
1739      TLM tests only run for 1st grdchk at the moment. Its unclear if
1740      this is a code problem or a problem with resetting code for g_
1741      variables that is being autogenerated wrong.
1742      Otherwise:
1743       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1744       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1745         are both still in chaos following their security messes.
1746    
1747    checkpoint52n_post
1748    o various build (mostly genmake2) changes including:
1749      - ability to build/run more easily within Cygwin and MacOS X
1750      - more complicated Makefiles with a stronger dependence on Gnu Make
1751    o pkg/seaice modifications
1752      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1753        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1754        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1755      - changed proxy for geostrophic velocity and updated
1756        verification/lab_sea/results/* accordingly
1757      - removed ADI dynamic solver from pkg/seaice
1758      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1759        they caused a segmentation fault under certain circumstances
1760      - removed unused field WATR
1761    o bug fix in exf-package:
1762      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1763         now reflect that.
1764    o small fixes in the cal-package:
1765      - set reference date to first of January for the 'model'-calendar
1766      - failing of cal_CheckDate in cal_FullDate now actually results in a
1767        warning
1768    o small modifications in exf-package to increase flexibility:
1769      - change climtempfreeze from a constant to a runtime parameter that
1770        is specified in data.exf_clim (default = -1.9)
1771      - introduce runtime parameter windstressmax (default = 2.0) that is
1772        specified in data.exf
1773    o fix in pkg/thsice:
1774      - update Evap (Tsf changes) to be consistent with Latent heat flux
1775      - maintain snow precipitation unchanged (even if Tsf >=0).
1776     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1777    
1778    checkpoint52m_post
1779    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1780      this does not change any of the results, because myIter=0 in swfrac always
1781      lead to jwtype=2 (the default anyway), but the call makes little sense
1782      as a default
1783    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1784    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1785      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1786    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1787    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1788    o extending useSingleCpuIO option to work with new exch2 I/O format
1789      - old-style, missing-tile I/O is still accessible by defining CPP
1790        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1791    o monitor package can write to NetCDF files and/or STDOUT
1792    o fix re-definition bug in MNC_GRID_INIT_ALL()
1793    o doc/api_reference added
1794      - a framework for building an API Reference Manual using all
1795        the "protex" comments embedded in the code
1796      - see pkg/generic_advdiff, pkg/mnc for examples
1797    o MNC:
1798      - make myThid the last argument for all subroutines
1799      - new default for the grid files: NO halos
1800      - add useMNC and other run-time flags
1801      - separate per-file-group handling of the unlimited dimension
1802      - early initialization of MNC w/ flags read at the eeboot stage
1803        and lookup tables set in initialize_fixed
1804      - write all MNC output to a freshly-created directory
1805  o thermodynamics sea-ice (thsice) is now tested with testreport.  o thermodynamics sea-ice (thsice) is now tested with testreport.
1806  o test exp. advect_cs: use the standard cs32 grid ; update output.  o test exp. advect_cs: use the standard cs32 grid ; update output.
1807    o Added functionality to grdchk:
1808      pick global i,j,k position (or nearest wet) where to perform check.
1809    
1810  checkpoint52l_post  checkpoint52l_post
1811  o new land formulation:  o new land formulation:

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