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revision 1.113 by dimitri, Sat Dec 28 10:11:10 2002 UTC revision 1.827 by heimbach, Fri Jun 1 23:31:38 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs:
8     - bug fix for balance code
9    o pkg/seaice:
10      - allow values of SEAICE_elasticParm > 1
11      - add new parameter SEAICE_evpTauRelax as an alternative
12        to SEAICE_elasticParm
13      - make lsr boundary conditions free slip (by default), changes result
14      - add code for no slip boundary conditions for lsr
15      - set minimum of zeta to zero (and not 4e8) (changes results)
16      - add a cap on AREA after advecting AREA if seaice_growth is not called
17    o change calculation of Visbeck K:
18      - no longer depend on tapering scheme; instead, compute slope (limited
19        by GM_maxSlope). this is equivalent to what was comuted before with
20        clipping or linear tappering.
21      - fix vertical averaging (wrong by 1 level)
22      - leave the old version (but will not be maintained) within
23        #ifdef OLD_VISBECK_CALC / #endif
24    o change error catch in calc_r_star to improve vectorization
25    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
26      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
27    o adjoint:
28      Re-organized adjoint checkpointing according to Matt Mazloff
29      (but with modifs/completions/cleanups)
30      Storing is now bundled into large arrays to optimized I/O
31      (and second step in cleanup of the_main_loop)
32    
33    checkpoint59b
34    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
35      - export/import (between ocean & coupler) fields needed for ocean DIC.
36    o pkg/seaice:
37      - get rid of three more exchanges seaice_calc_viscosities (required
38        different loop boundaries in seaice_lsr and seaice_ocean_stress)
39      - bug fix in seaice_ocean_stress (update of lab_sea required)
40      - reduce loop boundaries to necessary minimum also in seaice_evp
41      - go back to the old way of computing deltaC/Z as the adjoint likes that
42        better
43    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
44      passive tracer to an Age Tracer) + update output.txt
45    o pkg/exf:
46      - implement A-grid / C-grid selection for wind-stress input files.
47      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
48      for now, in exf_bulk_largeyeager04.F only :
49      - change implementation for case where windspeed + 2. components wind-stress
50        are read-in. AND use rhoConstFresh to convert evap.
51    o pkg/seaice:
52      - use correct EXCH_UV for wind-forcing (on A-grid).
53      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
54        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
55    o pkg/exf:
56      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
57      EXF_INTERPOLATION:
58      - merge global_with_exf/code version of exf_interp_read.F
59        to the main code ;
60      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
61        reading the file ; Important: This options needs to be defined to recover
62        previous code.
63        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
64      - no longer loose real*8 precision along the way when using exf_iprec=64.
65    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
66      - change discretisation of evp-solver in order to avoid another exchange
67        (changes lab_sea) and clean up a little
68      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
69        help the adjoint (this also changes the results slightly)
70      - add a few "_d 0" where they had been missing in seaice_evp.F
71      - cleaning up: remove unused seaice_calc_rhs.F
72    o pkg/exf: some cleaning-up:
73      - change various "constants" into runtime parameters
74      - cleaned-up Large&Yeager04 routine which should eventually
75        replace exf_bulkformulae.F (changed names of S/R and CPP)
76        and merged various ALLOW_ATM_WIND options
77     only used with thsice pkg (in thsice_get_exf.F):
78      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
79        which are used when useStabilityFct_overIce=TRUE (= the default)
80      - change default values of ice & snow emissivity and scale downward LW
81        by ice & snow emissivity.
82    o pkg/thsice:
83     fix few little problems, in thsice_calc_thickn.F:
84      - growth vertically (and not laterally) if iceFrac == iceMaskMax
85      - melt laterally only if hIce < hThinIce (as the comments say)
86      and in thsice_extend.F:
87      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
88      - start to form ice as soon as the minimum ice-volume is reachable.
89     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
90      and cpl_aim+ocn
91    o pkg/kpp
92     - move computation of surface related input fields to KPP into a new
93       subroutine kpp_forcing_surf.F
94     - remove wrong (within bi,bj loops) EXCH calls.
95     - little cleaning (add argument myThid in last position, cvs header ...)
96     - for now, fix conservation problem by exchanging KPPviscAz (may not
97       be the best fix)
98    o pkg/seaice
99     - check for inconsistent evp parameter/cpp-flag combination
100     - remove leftover errIO flat for obsolete name list error handling
101    o OpenAD
102     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
103    
104    checkpoint59a
105    o pkg/seaice: some parameter clarifications and a little bit of clean up
106    o pkg/thsice: rename run-time parameters:
107       himin       -> hIceMin
108       himin0      -> hThinIce
109       hihig       -> hThickIce
110       i0          -> i0swFrac
111       transCoef   -> bMeltCoef
112       frac_energy -> fracMelting
113      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
114       with default values (for now) that do not change the results.
115      remove old version of thsice vars advection in pkg/seaice.
116    o in FFIELDS.h:
117      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
118      - make pLoad & sIceLoad always available (but still only used if
119         ATMOSPHERIC_LOADING is #define).
120    o pkg/kpp: replaced _KPP_RL with _RL
121    o bug fixes for vertical diffusivity computations when both KPP and
122        3D diffusivity arrays are used.
123    o pkg/seaice: fix bug in evp solver, while doing that
124      - change (improve?) discretization of stress computations for both
125        cgrid-lsr and evp solver
126      - add a new routine to compute strain rates
127      - the above changes lab_sea results
128      - add no slip conditions for evp solver (off by default), lsr-version
129        may follow
130      - fix exchange for shear at Z-points (does not change lab_sea)
131      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
132        (to force the user to pick a time step since there is not "safe" way
133        of choosing it)
134      - add principal stress diagnostics
135      - rearrange fields for evp a little to avoid having to call a: too many
136        exchanges and b: exchanges for stress trensor components which we do
137        not have.
138      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
139        of evp, complete rewrite for lsr case (latter is does not yet work
140        in all cases)
141    o pkg/kpp: add code to have mixing in shelf ice caverns
142      - add myThid to all kpp routines (long overdue)
143    
144    checkpoint59
145    o pkg/exf:
146      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
147        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
148      - move exf header files from lower_case.h to UPPER_CASE.h ;
149        add missing cvs Header & Name
150      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
151      - add namelist param. selectStressGridPosition, exf_monFreq
152      - retire many _CLIM routines, and remove data.exf_clim
153        + params moved to data.exf
154        + climsst, climsss now handled by exf_set_gen, i.e.
155          climss?period=0 refers to constant field,
156          climss?period=-12 to monthly forcing
157      - split up namelists in data.exf
158    o pkg/seaice:
159      - remove seaice_exch and seaice_exch_uv
160      - remove superfluous exchange of theta
161      - add myThid to seaice_budget_ocean/ice
162      - add new interface for atmospheric wind forcing (C-grid only)
163        + new routine
164        + two new field (taux, tauy for stress over ice)
165        + removed one global field (DAIRN) for C-grid case only
166    o pkg/thsise
167      - 2nd set of modifs for thsice adjoint in conjunction with exf
168    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
169    
170    checkpoint58y_post
171    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
172      vertical diffusivity, similar to that in MOM4; turned on using
173      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
174      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
175    o Added capability for 3D specification of background vertical diffusion
176      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
177      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
178      "data" file that contains the 3D vertical diffusivity coefficients.
179    o ice dynamics (pkg/seaice) with thsice thermodynamics:
180      - add code within pkg thsice to advect & diffuse sea-ice fields
181      similar to (and will replace) what has been added in  seaice_advdiff.F,
182      but: - conserving Mass, Heat & Salt.
183           - better when using non-linear advection scheme (not yet fully tested)
184           - can also be used in atmospheric set-up (for now, only the diffusion).
185    
186    checkpoint58x_post
187    o IO option for global-file compact format:
188      - add options when generating topology (utils/exch2/matlab-topology-generator)
189      - add I/O capability (pkg/mdsio).
190      - adapt utils/matlab/rdmds.m to read this format.
191      for now long-line format not yet supported by pkg/mdsio (& exch2).
192    o shelfice: add a few diagnostics
193    
194    checkpoint58w_post
195    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
196      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
197      (and replace horiVertRatio in NH code).
198      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
199                         and tutorial_plume_on_slope (sensitive to truncation)
200    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
201      directly to drive seaice model (C-grid only)
202    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
203     - reintroduce computation of wind from stress,
204     - compute tau (in exf_bulkformulae.F) from windstress averaged to
205       mass points to avoid tau = 0
206     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
207    o rdmnc.m: make it work with "global" files created with gluemnc
208    o rdmnc.m : some improvements in dealing with singleton dimension
209      (tested on all testreport mnc output files).
210    o genmake2: disable pkg/profiles if netcdf test fails.
211    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
212    o move call to cal_readparms up to make calendar parameters/variable available
213      to all packages
214    
215    checkpoint58v_post
216    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
217      useDynP_inEos_Zc tested.
218    o pkg/exf: changes to properly interpolate/mask/scale initial fields
219    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
220      and portions thereof.  See read_cs.txt for description and examples.
221    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
222      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
223      following the great-circle arc between those 2 points.
224    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
225      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
226    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
227     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
228     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
229     - still needs work (not working with some options ; efficiency to improve)
230       and serious testing.
231     - use this scheme for temperature & salinity in 2 advection test exp.:
232       advect_xy & advect_xz, respectively.
233    
234    checkpoint58u_post
235    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
236    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
237    o testreport: add option "-skipdir" to skip some test.
238    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
239      momentum calculation.
240    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
241    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
242      remove checkpoint.F and the_correction_step.F (no longer used);
243      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
244    o add option (linFSConserveTr) to correct for tracer source/sink due to
245      Linear Free surface
246    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
247    o pkg/thsice: fix reading mnc-pickups
248    
249    checkpoint58t_post
250    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
251    o pkg/mdsio:
252     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
253       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
254       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
255     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
256     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
257       either MDS_READ_FIELD or MDS_WRITE_FIELD )
258     - new S/R (to replace MDSWRITEMETA), which allows to write more
259       informations (variable names, time ...) to meta files.
260     - modify rdmds.m to give back the meta file content.
261    o pkg/diagnostics: change vertical interpolation to be safer, and more
262       flexible (define p-levels to interpolate to in data.diagnostics);
263      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
264       diagnostic pointer.
265    o pkg/seaice: more cleaning up of seaice_growth, added many comments
266    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
267    o fix multi-category seaice:
268     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
269       SEAICE_MULTICATEGORY
270     - fix short wave heat flux
271    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
272       and allow to use EVP solver. Change forward lab_sea: test both EVP
273       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
274    o Initial check-in of lab_sea adjoint
275      (very similar to natl_box_adjoint/code_seaice)
276      * used C-grid and EVP solver
277      * used KPP, GM/Redi
278      * uses inAdExact=.TRUE.
279      * gradient checks fail for both ADM and TLM
280        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
281        f.d. gradients actually seem more problematic than ADM, TLM gradients;
282        issue is related to forward mismatch between g77 an ifort
283    o pkg/seaice: overhaul of thermodynamics
284     - growth.F and groatb.F are replaced by new routine seaice_growth.F
285     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
286     - move a few global fields out of SEAICE.h into seaice_growth.F and
287       make them 2D (FICE/QNETO/ ...)
288     - remove FO (it is the same as QNETO)
289     - introduce a few local fields to avoid modifying external fields such
290       as atemp, etc.
291    
292    checkpoint58s_post
293    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
294      changed exf_set_gen.F so that
295        genperiod=0 means input file is one time-constant field and
296        genperiod=-12 means input file contains 12 monthly means
297    o CG2D: use pre-computed solver main-diagonal (stored in common block);
298      this affects truncation error ; generate new output file for exp. which
299      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
300        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
301        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
302        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
303        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
304        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
305    o start implementation of deep-atmosphere and anelastic formulation
306    o verification: remove 2nd copy of input files and use script "prepare_run"
307      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
308    o mom_common/vecinv/fluxform: fix a few initialisation isssues
309    o profiles: fix for multithreaded case
310    
311    o diagnostics: rename few diags:
312      s/'PRESSURE'/'RCENTER '/g
313      s/'TICE    '/'oceFreez'/g
314      s/'TAUX    '/'oceTAUX '/g
315      s/'TAUY    '/'oceTAUY '/g
316      s/'SWFLUX  '/'oceQsw  '/g
317      s/DIFx/DFxE/g
318      s/DIFy/DFyE/g
319      and add few ocean-forcing diagnostics:
320      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
321    o modifications to pkg/seaice/growth.F and budget.F, which change results of
322      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
323      as actual snow thickness.  It now refers everywhere to effective snow
324      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
325    
326    checkpoint58r_post
327    o modifications to pkg/seaice/growth.F, which change results of
328      lab_sea experiment: fixes pertain to melting snow over open water, to
329      masking EVAP under sea ice, and to using the correct AREA variable for
330      computations of EVAP, PRECIP, HSNOW, and GHEFF
331    o add ability to read bathy, salt, and theta using MNC (off by def)
332    o add flooding algorithm and advection of HSNOW for pkg/seaice;
333      both are turned off by default and do no change any results
334    o seaice advection with pkg/thsice: a step toward the use of non-linear
335      advection scheme, but #ifdef or commented out for now (requires more EXCH).
336    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
337      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
338      in natl_box (affects results @ truncation level: update output.txt)
339    o multi-threading and IO:
340      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
341      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
342        (needed to work with SingleCpuIO): tested in all verif. exp.
343    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
344      affects the results (but none of the verification test uses this scheme).
345    o Adding some pkg/diagnostics capability to pkg/seaice
346      (will certainly be subject to changes)
347    o ctrl: adding new control variables:
348      lwflux, lwdown, evap, snowprecip, apressure, runoff
349    
350    checkpoint58q_post
351    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
352      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
353      high_res_cube configuration by 4% on Columbia.
354    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
355      add (in global_with_exf/code) a version of EXF_INTERP_READ without
356      dynamical allocation (seems to work in multi-threaded).
357    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
358      single CPU io) so that TAF does not have to see EESUPPORT.h
359    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
360    
361    checkpoint58p_post
362    o obcs: stop if obcs is used with useCDscheme = .true.
363    o shelfice:
364     - fix a sign error so that no slip at shelfice interface works
365     - remove stop for combination non-hydrostatic code and shelfice. That does
366       not mean, that the results are correct, but at least they are numerically
367       stable
368    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
369    o added adjoint exch routined for all exch*3d* routines
370      and updated flow directives
371    
372    checkpoint58o_post
373    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
374      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
375    o change controling S/R for writing pickup file (new S/R do_write_pickup)
376      and clean-up reading/writing of pickup files.
377    o fix local version of read/write pickup (NH part) in rotating_tank/code
378    o simplify EXCH interface:
379     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
380     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
381    o added the regrid package
382    o shelfice:
383     - add a simple boundary layer scheme to reduce noise
384     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
385    
386    checkpoint58n_post
387    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
388       local variable (not in common block).
389    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
390      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
391      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
392        to work with SingleCpuIO.
393    o add "_d 0" to real constant of pkg/cfc subroutines ;
394       update exp. cfc_exemple & tutorial_cfc_offline output files.
395    o multi-threading and IO:
396      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
397        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
398      - barrier before and after reading.
399      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
400      - avoid using MDS_WRITELOCAL for LAND pkg output.
401      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
402        common-block variables ; Allows multi-threading with master-thread IO.
403    o change default MAX_NO_THREADS from 32 to 4 ;
404      and stop cleanly when MAX_NO_THREADS is too small.
405    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
406    
407    checkpoint58m_post
408    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
409       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
410    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
411       keep global_ocean.90x40x15 (for AD testing) with former secondary test
412       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
413    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
414        add MITgcm_tutorials (= code + all the tutorials)
415    o ecco, option to compute cost for total ssh (mean+anom)
416    o consistent with addition of ptracer and ssh in pkg/profiles
417    o profiles: adding ptracer and ssh
418    o testreport: change multi-test output-file name
419      (from output.txt.{name} to output.{name}.txt)
420    o profiles: now ok for mutli-tiles case
421    o seaice: add 4 parameters for different advection schemes for area,
422      (effective) seaice thickness, enthalphy, and snow height. Their default
423      is the standard parameter SEAICEadvScheme
424    o calc_gw:
425     - add cosFacU in zonal viscous flux (harmonic.visc.).
426     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
427       of tutorial_plume_on_slope.
428    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
429    o calc_gw: true flux-form, account for horizontal grid spacing.
430      update rotating_tank results, but not plume_on_slope (affected at
431      truncation level, 11 digits).
432    
433    checkpoint58l_post
434    o calc_gw:
435     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
436     - remove side-drag for now (need to fix it); update plume_on_slope results.
437     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
438    o commit code to make SST/SSS weights spatially variable
439      (based on either variable in-situ or variable initial T/S weights)
440    o pkg/ecco:
441      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
442        now based on horizontally varying weights wthetaLev, wsaltLev
443      * cost_averagesflags now returns year indices in addition to day, month
444      * sflux balance is performed on annual basis
445        (sflxumm, sfluxmm2, bal_sfluxmm)
446      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
447        including separate counting and multipliers
448    o pkg/rbcs
449      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
450    
451    checkpoint58k_post
452    o testreport:
453     - always build in dir. "build" (if not there, mkdir build instead of building
454       & running in input)
455     - run in dir run (if it exists), in build otherwise.
456     - call prepare_run (if input/prepare_run exists)
457     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
458    o pkg/exf modifications to interpolation and rotation routines for more
459       reasonable treatment of North Pole singularity: for tracers North Pole
460       value is set to northernmost zonal-mean value, for zonal velocity it is
461       set to zero, and for meridional velocity it is set to northernmost value.
462    o pkg/exf/exf_check_range.F
463     - add tile index to diagnostics and move stop statement to the very
464       end of the routine.
465    o pkg/diagnostics: (diagnostics_main_init.F)
466      define title of isomorphic variables according to the current config.
467    o pkg/thsice with pkg/seaice dynamics:
468    - fix domain of computation (interior only, required for exf) and do exchanges
469    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
470    o towards a standard way of dealing with multi-threading in MONITOR
471      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
472    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
473       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
474    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
475    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
476    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
477       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
478    o tracer advection:
479     - clean-up and simplify calc_common_factors.F
480     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
481       advection subroutine (but still not used within DST advection S/R)
482    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
483    
484    checkpoint58j_post
485    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
486      from file (collects calls previously in FORWARD_STEP)
487    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
488    o adjoint store dir. adjusted accordingly
489    o genmake2
490      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
491    
492    checkpoint58i_post
493    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
494      on wind stress (SEAICEstressFactor defaults to 1.)
495    o Total number of Timers is finite (<=40): comment out 2 non-essential one
496      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
497    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
498      on CS-grid: no longer loosing mass.
499    o exf & curvilinear-grid: no longer modify longitude xC & xG.
500    o pkg/ggl90: fix sloppy output and fix a bug
501    o pkg/seaice: added SEAICEuseEVPpickup parameter
502      - Set to false in order to start EVP solver with
503        non-EVP pickup files when using SEAICEuseEVP
504      - fix sign error in diffusion in seaice_calc_rhs
505    
506    checkpoint58h_post
507    * Modifications for bottom topography control
508      o replace hFacC by _hFacC at various places
509      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
510      o add non-self-adjoint cg2d_nsa
511      o update autodiff support routines
512      o re-initialise hfac after ctrl_depth_ini
513      o works for 5x5 box, doesnt work for global_ocean.90x40x15
514    * Adding verification for 5x5 box (4-layer) bottom topography control
515    
516    checkpoint58g_post
517    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
518       used for mean seasonal cycle, mean diurnal cycle); add an example
519       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
520    o pkg/ggl90:
521      - add parameter (minimum surface kinetic energy)
522      - fix bug (avoiding division by zero)
523    o couple pkg/thsice to pkg/seaice:
524      - modify advection in seaice to accomodate new scalar fields to be advected
525      - only muliDimAdection scheme work with seaice/thsice
526      - mapping of thsice-variables to seaice-variables, back and forth
527      - does not break the verification experiments, but does not give the
528        desired results either
529    o pkg/seaice
530      - make (default) second order advection a bit less confusing?
531    
532    checkpoint58f_post
533    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
534      to pkg/seaice):
535      - new routines thsice_map_exf and thsice_get_exf provide the interface
536      - add an additional formal parameter to thsice_solve4temp
537    o pkg/exf:
538      - add new fields wspeed, snowprecip (to be able to couple to thsice)
539      - correct Stefan-Boltzmann constant
540      - new parameter for longwave surface emittance
541      - separate some stuff from exf_bulkformulae into new routines  
542        exf_radiation, exf_wind
543      - add new parameters and constants: longwave emissivity for ocean, ice
544        and snow, evaporation parameters over ice
545      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
546        either wind from stress or stress from wind
547    o pkg/thSIce:
548    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
549    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
550       and THSICE_CALC_THICKN
551    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
552    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
553      to make debugging easier.
554    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
555    o pkg/bulk_force:
556      - clean-up comments and parameters ;
557      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
558    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
559      generate new output for test-experiment: aim.5l_cs.thSI
560    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
561      testreport accordingly
562    
563    checkpoint58e_post
564    o SEAICE_CGRID adjoint done
565    o R_STAR adjoint implemented.
566      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
567      * need to sort out init. of h0facc, etc.
568    o Make pkg/profile fully independent of ecco,cost, etc. stuff
569      to be able to use it in pure forward.
570    
571    checkpoint58d_post
572    o upgrade simple test-experiment to tutorial example:
573     step.1: duplicate the experiment and (step.2) will remove the old copy.
574      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
575      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
576      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
577      tutorial_global_oce_biogeo    <- copy of dic_example
578      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
579      tutorial_plume_on_slope       <- copy of plume_on_slope
580      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
581      tutorial_global_oce_optim     <- empty for now (David ?)
582      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
583     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
584    o correct a sign problem in cost_scat.F
585    o obcs and ptracers: fix boundary conditions for advections schemes
586      with larger stencil
587    o thsice adjoint: start
588    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
589      completeness
590    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
591      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
592    o ptracers adjoint:
593      * avoid extensive recomputatations
594      * fix missing re-init. of gptr (missed by TAF)
595    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
596      me to turn off the excessive output to STDOUT that this package produces
597    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
598      and add those terms in Vector-Invariant formulation.
599    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
600      if the control period (xx_hfluxperiod etc) is 0
601    o in profiles pkg, clean routines and fix details
602    o in ecco pkg, reading ssh data:
603      fix problem in case the model does not start at iter0=0
604    o fix mnc-pickup/restart for ptracers
605    o new package prifiles:
606      code to compute profile-based cost by Gael Forget
607      (modifs in ecco, ctrl, autodiff)
608    o Benign bug fix in initialization (spotted by M. Mazloff) of
609      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
610    
611    checkpoint58c_post
612    o adjoint: finish NLFS adjoint and provide reference output in
613      verification/global_ocean.90x40x15/results_ad_nlfs
614    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
615      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
616      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
617      with SEAICE_CGRID defined.
618    o move calendarDumps from "data" to "data.cal" and clean-up the code
619      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
620    o add useEXF & useCAL flags (for now, set in hard-coded way)
621    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
622      (were missing in NH mode, and wrong in quasihydrostatic mode).
623      waiting for Chris updated version of calc_gw to add those CALLs.
624    o fix bug in quasihydrostatic S/R ;
625      add a test for this option: global_ocean.90x40x15.qshyd
626    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
627      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
628    o add on/off flag useOffLine for package OFFLINE
629    o seaice:
630      - modify advection so that it works also on the C-grid
631      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
632        problem in multi-tile runs with C-grid
633      - add flags for clipping ice velocities and/or masking solver forcing
634      - fix drag (ocean on ice) formulation and a bug that caused noise in the
635        C-grid solver
636      - added a few comments to seaice_diffusion.F
637      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
638        are now exclusive)
639      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
640        required re-ordering the code a little:
641       + make DAIRN global variable (defined in SEAICE)
642       + move computation of the viscosities eta and zeta into a new separate
643         routine (because I need to recompute them in seaice_ocean_stress.F)
644    
645    checkpoint58b_post
646    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
647      update output.txt of exp. aim.5l_cs.thSI
648    o various mnc cleanups and improvements:
649      + shrink lookup tables by factor of ~4
650      + better error reporting when running out of lookup space
651      + able to handle longer path/file names (up to 500 chars)
652    o adjoint:
653      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
654      - TBD: "hidden" mom_vecinv recomp. in dynamics
655    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
656     (allow to differentiate between forcing components using new integer flags:
657      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
658     and add new flag to put Dissipation tendency out of Adams-Bashforth.
659    o ecco
660      - enable trend removal from SSH anomaly obs.
661    o adjoint
662      - a fix for PmEpR when #undef EXACT_CONSERV
663      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
664      - try to fix "hidden" recomp. in forward_step for NLFS
665        (NLFS seems broken sometimes after I checked it in)
666    o seaice:
667     - add c-grid version of the dynamic solver:
668       + three new routines that are the c-grid substitute lsr, dynsolver
669         and ostres
670       + put a few fields that were local to dynsolver into global common
671         blocks, so that I can move the computation of stresses etc into
672         seaice_lsr (saves coding but may break the adjoint).
673     - replace more hardwired parameters by runtime parameters
674     - add ice masks that mask the rhs of the implicit solvers where there
675       is no ice (commented out in seaice_dynsolver, because i am not sure
676       if this works properly), eventually this should replace the clipping
677       of ice velocities in seaice_dynsolver to +/-40cm/s.
678    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
679      include it only where its needed
680    o move balancing of fluxes before the call of external_forcing_surf
681    o seaice:
682      - correct units of turning angles (now they are really in degrees)
683      - move computation of GWATX/Y out of main routine into dynsolver
684      - initialize GWATX/Y in seaice_init
685    o Apply mask on Fresh-Water flux (needed for SSH forcing).
686      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
687    o seaice: add runtime flags for turning angles (default to zero)
688    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
689      and trend from exf forcing and ctrl control adjustments
690    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
691      (since checkpoint57x_post)
692    o change the default rotation period to 86164.s = the Earth rotation
693    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
694      and based on a reference stratification. Tested within hs94.cs-32x32x5.
695    o seaice advection: add code for choosing between the default (2nd order
696      central differences) and multiDim advection schemes provided by
697      pkg/generic_advdiff
698    o seaice:
699      - removed all references to SEAICE_GRID.h fields from
700        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
701        (cubed-sphere configuration will change a little)
702      - grid computations in seaice_init are obsolete now.
703      - cleaned up code a little so that is easier to read (hopefully).
704      - added new (better?) discretizations of default advection and diffusion
705        (turn on with SEAICEuseFluxForm)
706      - replace 1 in 3d global fields by kSurface in growth.F
707      
708    checkpoint58a_post
709    o seaice:
710      - bug fix in advect.F
711    o shelfice:
712      - separate shelfice load anomaly from pload (breaks with time
713        dependent forcing), => introduce constant field shelficeLoadAnomaly.
714        Its default is 0., but it may be computed more cleverly from (unknown)
715        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
716        done offline. A good approximation of the pressure load anomaly is
717        necessary to avoid large initial adjustment processes underneath
718        deep-reaching shelfice.
719      - small fix in ISOMIP shelfice_thermodynamics
720      - add more sophisticated thermodynamics of Hellmer (1989), this is
721        now the default
722      - give a few constants more intuitive names
723    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
724      if bulk formulae are used in long integration (especially EmPmR). Turn
725      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
726      if balancePrintMean, the imbalance that is substracted is printed to
727      STDOUT.
728    o fix bug (typo) in obcs_apply_eta.F
729    o add a new package shelfice which enables us to model the circulation
730      underneath shelf-ice with draughts of hundreds of meters.
731     - works
732     - to do: + include improved thermodynamics
733              + check whether kSurfC (from model/inc/SURFACE.h) can be used
734                instead of new field kTopC
735              + can we use topoFile, Ro_surf and existing code in ini_depth.F
736                instead of new field R_shelfIce and new code in ini_depth.F
737                and ini_mask_etc.F?
738              + adjust vertical mixing schemes?
739    o seaice pkg:
740     - add a cpp-flag to include a simple formula for a salinity dependent
741       freezing point of sea water at the surface
742     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
743       meridional stresses are now different (and hopefully correct)
744    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
745       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
746       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
747    o pkg/diagnostics: add options and parameters for regional-statistics
748       diagnostics ; define regions by reading a region-mask from a file
749       (might add other options later)
750    o pkg/bulk_force:
751     - add option and parameters to use AIM surface-flux formulae.
752     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
753       others forcing fields (defined in PARM05, parameter file "data") are loaded
754       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
755     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
756     - use the right EXCH call for uwind,vwind (to work on CS-grid).
757     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
758       and parameters (note: calcWindStress replaces .NOT.readwindstress).
759     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
760    
761    checkpoint58
762    o add "--embed-source" option to genmake2 which, when the supporting
763      tools can be compiled (as determined by genmake2) will turn on the
764      embed_files package which then embeds the entire MITgcm source code
765      (*.[fFhc] + Makefile) used for the build within the executable
766      - requested by CNH but off by default
767      - adds a paltry <9MB to the mitgcmuv executable in most cases
768      - only writes the output when useEMBEDSRC in eedata is true
769    o clean up 3-dim. relaxation codes:
770      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
771      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
772      * Thanks to Tom Haine for testing!
773    
774    checkpoint57z_post
775    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
776      affects output (@ truncation level) of exp. plume_on_slope ; updated.
777    o fix the pickup behavior for obcs in combination with ptracers
778    o fix a bug in ptracers_external_fields_load
779    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
780      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
781    o transfered surface NH pressure to eta field (if exactConserv).
782    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
783         and update lab_sea output.txt file.
784    o completing 3-dim. relaxation code: additional term
785         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
786      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
787      * At compile time, in "EXF_OPTIONS.h" set
788          #define  ALLOW_CLIMTEMP_RELAXATION
789          #define  ALLOW_CLIMSALT_RELAXATION
790      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
791          tauThetaClimRelax3Dim = 15552000.0,
792          tauSaltClimRelax3Dim  = 15552000.0,
793      * 3 cases:
794          1) Use a constant-in-time 3-dim. field
795          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
796          3) Real-time relax. to time-evolving prescribed field
797    o Adding Laplacian-type smoothness constraint on
798      initial and boundary (forcing) controls (ic, bc)
799      * enable at compile-time via
800        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
801      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
802      * Absolute scale somewhat unclear so far
803      * no area weighting was included since no other cost term does so far
804    
805    checkpoint57y_post
806    First step for a NLFS adjoint
807    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
808    o new init. routines for calc_r_star, calc_surf_dr
809    o still need to deal with ini_masks_etc
810    o testreport seemed happy
811    checkpoint57y_pre
812    
813    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
814    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
815    o add new offset feature to offline pkg (plus minor cleanup)
816    o cfc fixes for final year of integration
817    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
818      be in GCHEM_OPTIONS).
819    
820    checkpoint57x_post
821    o fix testreport Pb in multiple test experiment.
822    o cleanup our namelist syntax in verification:
823      - make it more F95 standards compliant (some work still needed)
824      - allows the vast majority of our tests to work with gfortran
825    o Non-Hydrostatic:
826     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
827     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
828    o Allow to apply AB on T,S rather than on AB(gT,gS):
829     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
830     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
831       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
832     - need a "clever" read_pickup to restart from the other AB formulation
833    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
834    o remove some unused variables (reduces number of compiler warnings)
835    o adjoint
836      * Disable useVariableViscosity for adjoint for time being
837        (there are a number of extensive recomputations)
838      * Initialize certain variables needed for adjoint
839    
840    checkpoint57w_post
841    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
842                 fix the singleCpuIO RS version of MDSWRITEFIELD
843       and add a WARNING if using globalFiles=T with multi-processors.
844    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
845      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
846    o tracer advection scheme:
847      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
848       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
849       was not very convenient).
850      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
851       (further tests needed for the implicit DST & Flux-Limiter schemes).
852    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
853      and sRef for convenience, handy, when you want to initialize
854      ptracers in a large domain with a constant non-zero value. Also,
855      untangle ptracers_init.F a little.
856    
857    checkpoint57v_post
858    o change dome exp. to use variable viscosity in side-drag terms.
859    o remove all the files from the cfc_offline test since they are now
860      incorporated into tutorial_cfc_offline which has been producing
861      identical results for a few days of testing
862    o add new parameter: sideDragFactor to enable half-slip-side BC
863      and change side-drag S/R to use viscosity from mom_calc_visc
864      (can switch back by setting sideDragFactor=0.); affects results at
865      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
866       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
867    o vorticity & strain are now computed without masking, to account for
868      no-slip-side BC in variable viscosity calculation ; mask is applied
869      anyway later on, before computing advection/coriolis terms.
870    o modify exp4 to test new obcs support for reading from external files
871      and for passive tracers
872    o fix behavior of ptracers_monitor when monitor output is written to a
873      netcdf-file; still not independent of monitor.F (writes in the same
874      file).
875    o change default value of tRef (put a uniform, meaningful value for ocean
876      & atmos) and initialize sRef (was missing, as Martin mentioned).
877    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
878      to be proportional to enstrophy dissipation length.  Thus,
879       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
880      This is now consistent with Smagorinsky and with the manual.
881    
882    checkpoint57u_post
883    o OBCS and PTRACERS: add open boundary support for passive tracers
884      - either use homogenous (pseudo) v.Neumann conditions or prescribe
885        OB-values from file; this is not different from the way theta and salinity
886        are treated
887      - however, Orlanski-radiation conditions are not supported, and the model
888        will stop if you use pTracers and Orlanski at the same time.
889      - beefed up the rountine obcs_external_fields_load: now only those open
890        boundary values are overwritten with values from files for which there
891        are really files, otherwise the OB-fields remain untouched. This makes
892        it possible to use different OBs at different ends of the domain (as
893        with EXF)
894    o reduce number of exch calls in shap_filt (s2).
895    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
896      truncation level) 4/5 MLAdjust test results (11&12 digits match).
897    
898    checkpoint57t_post
899    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
900    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
901      same truncation, independent of the face number: affects affects several
902      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
903    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
904      note that biharmonic viscosity + no-slip was not tested in any experiment.
905    o fix bug in non-linear free-surf side-drag ; generate new output for
906      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
907    o make mnc honor the writeBinaryPrec flag for most kinds of output
908    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
909    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
910      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
911    o add brackets in multi-terms sum to get same truncation, independent of
912      the face number (manage to get exactly same value of gU,gV at the cs-edge)
913      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
914    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
915      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
916      a maximum grid-scale Reynolds number.  Also, changes all length calculations
917      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
918      Suggested values of viscosity parameters found in mom_calc_visc.
919      Many new viscosity diagnostics available.
920    
921    checkpoint57s_post
922    o Add clearing-house for viscosity calculations, mom_calc_visc and
923      correct numerous bugs in LeithD and Smagorinsky discretizations.  
924      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
925      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
926      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
927      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
928      The Strain-Tension form is now called with useStrainTensonVisc=.true.
929      ViscAhStrain and viscAhTension are now retired.
930    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
931    o In response to JMC's bug report, genmake2 now ignores any soft-links
932      that it finds in the *current* directory when searching for files.
933      Soft-links found in any other source directories will still work as
934      they did before.
935    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
936      a C routine to unlimit the stack size
937    o mnc-ify pkg/aim snapshot vars
938    o mnc-ify pkg/land as requested by Daniel
939    o various changes to mnc including:
940      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
941      - output can now be grouped so that all files within a group
942          change the ITER portion of their names in lock-step together
943      - can now read ("global") PER-FACE (in addition to PER-TILE) files
944          and works with both EXCH1 and EXCH2 (but needs more testing)
945      - writing works for all verification test cases w/ g77 on Linux
946    
947    checkpoint57r_post
948    o make MNC variable initialization happen earlier
949    o add diagnostics for (almost) each term of the momentum Eq.
950    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
951    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
952    o remove MINIMAL_TAVE_OUTPUT option ;
953      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
954    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
955      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
956    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
957    o add time-dependent SST, SSS control
958    o cost terms in ecco/ modularized (new cost_generic.F)
959    o cost_averages routines are modularized (new cost_averagesgeneric.F)
960    o new infrastructure for seaice model vs. obs misfits in seaice/
961      * driver from the_main_loop.F is seaice_cost_driver.F
962      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
963      * gradient check in Exp. 6a of natl_box_adjoint/
964    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
965      (see README file)
966    
967    checkpoint57q_post
968    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
969    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
970      - bug was reported by Jean-Michel and Ian Fenty
971    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
972      update exp. cpl_aim+ocn output.
973    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
974      Needed for high-res. runs with large global files
975      to be able to limit tapelev size
976    o Changed some tests for adjoint:
977      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
978      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
979      * global_ocean.90x40x15/ back to default 3-level checkpointing
980    o Modifications to enable scripted COMMON to MODULE conversion
981      * verification/OpenAD/code/ has necessary scripts and description;
982      * converts, compiles and runs successfully;
983    
984    checkpoint57p_post
985    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
986    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
987      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
988    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
989    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
990      (was already the case for dissipation with mom_vecinv,
991       and also the case for grad.PhiHyd when staggered-timeStep)
992      This will allow to put dissipation out-off the AB time-stepping.
993     Unfortunately, affects truncation error. Update output of exp. that "fails"
994      (cg2d matching number) and leave the others for later: front_relax(10),
995      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
996      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
997    
998    checkpoint57o_post
999    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1000      (2) its ready to be documented during the 20050801 DocFest
1001    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1002      for ideal_2D_oce and lab_sea on linux_ia32_g77
1003    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1004      in global1x1_tot/code_seaice_adj to access indices 32, 33
1005      (worth another tag)
1006    
1007    checkpoint57n_post
1008    o adding precip control xx_precip 32
1009    o adding swflux control xx_swflux 33
1010    o Replacing 10 forcing penalty cost routines by 1 generic.
1011    o Implementing partitioning in time-mean and variable adjustment
1012      for atmos. state.
1013    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1014    o in natl_box_adjoint:
1015      * updated exp 1 to 10
1016        (but does not have time-mean vs. variable split results yet)
1017    o updated global1x1/*_seaice_adj/
1018      to incorporate latest changes
1019    o enable useSingleCpuIO for mdsio vector routines
1020      (applies in particular to tapelev I/O)
1021    o removed inefficient K-loop in all active_file*control*.F
1022    
1023    checkpoint57m_post
1024    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1025      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1026    o pkg/exch2: filling of face-corner halo regions is optional
1027      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1028    
1029    checkpoint57l_post
1030     tag before updating tutorials (pre-release-2)
1031    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1032       for output and interpolation of input fields onto model grid)
1033    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1034       Affects results of exp. rotating_tank ; update output.txt.
1035    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1036          and taking the square quantity and/or using a fraction-weight field.
1037    o fix aim_diagnostics_init.F mate numbers.
1038    o add mnc output capability to diagnostics/diagstat and update
1039      our cvsignore files for the ACSII output generated
1040    
1041    checkpoint57k_post
1042    o lab_sea now uses diagnostics package and provides a suite of
1043      new EXF diagnostics output.
1044    
1045    checkpoint57j_post
1046    o exf
1047      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1048        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1049        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1050      * extended diagnostics output
1051        - now includes all EXF variables
1052        - hs, hl moved to common block
1053        - separate S/R for diagnostics, called after ctrl vector is added
1054        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1055        - EXFqnet contains true Qnet (i.e. includes qsw)
1056      * updated verif. lab_sea, global_with_exf
1057      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1058        to ensure that diagnostics sees a true EXFqnet
1059    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1060    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1061      several times with different frequencies.
1062    o mnc-ify the thsice package as requested by Daniel Enderton
1063      - the monitor--MNC output needs work
1064      - many attributes need to be added (most are currently blank)
1065    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1066      - many attributes need to be added (most are currently blank)
1067    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1068    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1069    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1070      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1071         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1072    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1073     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1074    
1075    checkpoint57i_post
1076    o Diagnostics package was changed: diagnostic allocation is now deactivated
1077      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1078    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1079      add 1rst Order upwind vertical Shear.
1080    o add a quick fix for A/B checkpointing in OFFLINE mode
1081    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1082      end-run around the C/Fortran linking horror in eesup/src/timers.F
1083    o added pkg/runclock: allows user to terminate run based on wall clock
1084    o added non-hydrostatic scaling parameter: nh_am2
1085    o pkg/my82: futile attempt to make results compiler-independent by adding
1086      some "_d 0", etc. no effect.
1087    o for mnc output, fill the 'T' coordinate var with myTime and create a
1088      separate 'iter' variable for iteration count
1089    o pkg/diagnostics:
1090      add new capability: output of Global/Regional & per-level statistics ;
1091      tested against monitor output (including land & thSIce) on various exp.
1092    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1093    
1094    checkpoint57h_done
1095      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1096      data.diagnostics, data.gchem, data.ptracers) is done.
1097    
1098    o pkg/diagnostics: prepare for Global/Regional statistics.
1099      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1100    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1101      and rename it: DIFFERENT_MULTIPLE
1102    
1103    checkpoint57h_post
1104    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1105    o pkg/diagnostics: change output frequency, now in seconds (instead
1106      of Nb of iterations). This requires to change data.diagnostics.
1107    checkpoint57h_pre
1108    
1109    o in mnc, let the user create the output dir if both mnc_outdir_date
1110      and mnc_outdir_num are false
1111    o add fflags() to pkg/diagnostics which allows one to specify, on a
1112      per-file basis, the file precision [default behavior is unchanged]
1113    o added diagnostics to pkg/kpp, including computation of mixed layer
1114      depth based on a temperature/density criterion
1115    o updated verification/natl_box to test the new pkg/kpp diagnostics
1116    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1117    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1118    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1119      not mnc -- this mistake was found by JMC and is now corrected
1120    
1121    checkpoint57g_post
1122    o add Adams-Bashforth 3rd Order time stepping:
1123      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1124      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1125    checkpoint57g_pre
1126    
1127    o make lambda[Theta,Salt]ClimRelax spatially varying
1128      (default remains spatially uniform constant based on tau)
1129    o added new control variables
1130      * init. uVel, vVel, etanN
1131      * lambda[Theta,Salt]ClimRelax
1132    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1133      (suggested by G. Forget)
1134    
1135    checkpoint57f_post
1136    o add parameter "baseTime" = model base time = time at iteration zero
1137      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1138      account for baseTime shift
1139    o move Coriolis arrays from PARAMS.h to GRID.h
1140    checkpoint57f_pre
1141    
1142    o mnc-ifying the seaice package
1143    o introduced an alternative length scale calculation for use in the limiting
1144      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1145    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1146    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1147      as well as grad(vort3).  Made it compatible with both approximate form
1148      for the cubed sphere and full form of these gradients.  Added flag
1149      useFullLeith to select between approximate and full form.  
1150    o add "d0" in getcon.F to reduce differences between compilers/platforms
1151      update output.txt of exp. fizhi-gridalt-hs
1152    o change port_rand funtion to allow to set the seed.
1153    o fix obscure MNC bug involving conversion between reals and integers
1154      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1155        new version is now more standards-compliant
1156    o adjoint-related modifications
1157      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1158      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1159      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1160    
1161    checkpoint57e_post
1162    o Adding eddy stress controls a la Ferreira et al.
1163    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1164    
1165    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1166      update output.txt of exp. fizhi-gridalt-hs
1167    o add more "Z" dimensions and associated coordinate vars to MNC
1168    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1169    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1170      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1171      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1172      months and years.  Requires pkg/cal.
1173    o diagnostics: add pickup functionality
1174      - off by default for backwards compatibility
1175      - current version only uses MDSIO -- MNC will be added
1176    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1177    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1178    
1179    checkpoint57d_post
1180    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1181    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1182      output from the diagnostics package
1183    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1184    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1185      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1186    o add coordinate variables to the MNC output from the diagnostics package
1187    o change MNC-flags default value: true when useMNC=TRUE
1188    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1189      the ability (off by default) to read the grid information using MNC
1190    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1191    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1192    o do snap-shot diagnostics at the middle of the time-interval (instead of
1193      at the end).
1194    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1195      new test for AIM with thSIce + slab-ocean
1196    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1197    o move state variable diagnostics to the beginning of the time step ;
1198      (note: still needs some work specially for snap-shot diagnostics)
1199      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1200    
1201    checkpoint57c_post
1202    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1203    o generate new output.txt files on faulks with g77 & the new -ieee option
1204    checkpoint57c_pre
1205    
1206    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1207      update output.txt of exp. global_ocean.90x40x15
1208    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1209      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1210    o add saltFlux(+File) forcing capability with periodicExternalForcing
1211    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1212    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1213    o improvements for the MNC output from DIAGNOSTICS:
1214      - correct handling of the unlimitied dimension
1215      - all dims now have associated coordinate variables
1216      - variables located at U, V, and Corner ("Z") points are now written
1217        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1218        *all* data points are output
1219    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1220    o added pkg/seaice/seaice_monitor.F
1221    o mdsio_readfield.F can now read files visible only to master MPI process.
1222    o pkg/seaice: some test code for ice-modified ocean stress
1223    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1224      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1225      spurious negative numbers for precipitation and humidity.  Will cause
1226      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1227    o pkg/ctrl/
1228      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1229        May be enabled via doPackDiag
1230      *  introduce z-scaling of
1231         + gradient (doZscalePack) and
1232         + control (doZscaleUnpack)
1233    o pkg/mdsio/
1234      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1235      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1236    
1237    checkpoint57b_post
1238    o simplify options in diagnostics_fill arguments (remove weird combinations)
1239    o fix MNC coordinate variables so that they now contain per-face index
1240      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1241      general, EXCH2 grids are only aligned to a "local" coordinate system
1242    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1243    o Implement instantaneous output within pkg diagnostics:
1244      setting a negative frequency in data.diagnostics produces
1245     "snap-shot" output (as opposed to time-average if freq > 0)
1246    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1247      NOTE: change ptracer diagnostics name: use 2 characters to work with
1248            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1249    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1250      becomes the coordinate variable for the 'T' dimension
1251    o add CF-style coordinate variables to MNC
1252      - just a first cut:  numbers are meaningless on the cubesphere and
1253        missing along the T axis but otherwise it works!
1254    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1255    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1256    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1257      this is based directly on what the model compute, so that the content of
1258      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1259    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1260    o clean up build options files for SunOS, in particular
1261      - remove -traditional from xmakedepend
1262      - change -xarch=v9 to -xarch=native for f77
1263      - restore use of make (not gmake)
1264      - add CC=gcc if using g77
1265    o changes per discussion of AM, JMC, & EH3 today:
1266      - move redundant "grid" variables out of "state" -- in preparation of
1267        creating proper CF-style coordinate variables and in recognition
1268        that any/all grid variables can be easily copied (eg. w/NCO) from
1269        the grid files into any of the other NetCDF files
1270      - *always* output grid variables with MDSIO (this will eventually be
1271        changed)
1272      - output MNC grid file if useMNC is true
1273    o every instance of _END_MASTER() has been found and replaced with
1274      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1275      preprocessors
1276    o re-arrange diagnostics pkg initialisation:
1277     - allow each package to extend the available diagnostics list
1278     - add some checking and fix small problems (multi-threaded, ...)
1279     - new S/R diagnostics_fill (replace fill_diagnostics):
1280       look through the short list of active diag. (instead of the long list)
1281       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1282    
1283    checkpoint57a_post
1284    o this set of changes restores TAMC compatibility
1285      tested for global_ocean.90x40x15 adjoint on trough
1286      (what a pain)
1287    
1288    checkpoint57a_pre
1289    o some modifs in tools/build_options for sunos
1290    o call ctrl_pack for ctrl at end for optimcycle=0
1291    
1292    checkpoint57
1293    o add horizontal bi-harmonic viscosity for vertical velocity
1294      - new parameter viscA4W (defaults to viscA4)
1295      - affects only non-hydrostatic code
1296      - to be done: no-slip lateral boundary conditions
1297    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1298    o implement Implicit Vertical advection for pTracers
1299    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1300      (implemented also for implicit vertical diffusion & advection)
1301    o OBCS: extend application of tracer open boundary conditions
1302      to a strip beyond the boundary of width Olx/Oly
1303    o add call monitor to TAF set of required calls (flow directives)
1304      and include in natl_box_adjoint
1305    o untangle a few ifdefs related to cost, ctrl, autodiff
1306      untangel a few ALLOW_ECCO_OPTIMIZATION
1307    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1308      (theta2, salt2 in ecco_cost_weights)
1309    
1310    checkpoint56c_post
1311    o OBCS as control variables
1312      - update ctrl_ad_diff.list, obcs_ad_diff.list
1313      - remove balance of obcs controls from default
1314      - fix index bug nobcs in ctrl_init
1315      - fix dummy fields filen in ctrl_pack
1316      - add dummy weights for obcs
1317    o lsopt: comment out fort.94 output
1318    o optim:
1319      - remove unnecessary header files
1320      - adjusted namelists
1321      - add xerbla.F to Makefile
1322    o exf:
1323      - multiple modifications of exf_check_range
1324      - unit change in exf_init_runoff from [m/year] to [m/s]
1325    o mdsio:
1326      - i/o-vector change debugLevel from debLevA to debLevB
1327    
1328    checkpoint56b_post
1329    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1330      is called from DO_THE_MODEL_IO
1331      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1332      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1333      - clean up PTRACERS_WRITE_TIMEAVE a little
1334    o add another verification experiment that tests both the cfc-pkg and
1335      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1336      reactive tendencies treated inline with regular timestepping
1337    o testreport previously did a lousy job of comparing small numbers, so
1338      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1339      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1340      testreport.
1341    o ptracers_monitor: bug fix for MPI
1342    
1343    checkpoint56a_post
1344    o GCHEM: finish reorganizating the package
1345      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1346        (introduces another 3D-array for each passive tracer, but only if
1347        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1348        gchemTendency is not needed because the timestep is done separately)
1349      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1350      - GCHEM is now---more or less cleanly---separate from PTRACERS
1351      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1352        so clear to me how that should be done in a general way.
1353    o CFC: improve formatting of output in CFC_ATMOS
1354    o PTRACERS:
1355      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1356        that ALL experiments with ptracers enable can be checked. This makes
1357        GCHEM_MONITOR obsolete.
1358      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1359        monitorFreq
1360      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1361    o add PTRACERS (PTR0[1-5]) to testreport output
1362    o exf_check_range:
1363      * default changed to .TRUE.
1364      * will check values for niter0 if debLevA, every timestep if debLevB
1365      * STOP in exf_check_range if 'out of range'
1366      * range chosen generous to allow for potential extema
1367      TBD: a version with stricter range
1368           permitted range would be runtime parameters
1369    o GMredi:
1370      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1371      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1372      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1373    o GCHEM:
1374      - move call to GCHEM_FORCING_SEP, so that it is now called before
1375        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1376      - introduced a useGCHEM runtime flag and applied it everywhere.
1377      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1378        this flag is now only visible within GCHEM-pkg routines.
1379      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1380        be replaced by a 3D array that is computed before thermodynamics; for
1381        this, the tracer ID iTracer had to be included into the parameter list
1382        of ptracers_forcing
1383      - set up forward_step to call gchem_forcing, that will replace
1384        gchem_forcing_int in ptracers_forcing
1385      - cleaning up
1386    o small cleaning of exch2: remove files that are also in eesupp/src
1387    
1388    checkpoint56
1389    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1390    o mnc: cleanup "full" files--fixes out-of-memory problem
1391    o ECCO-GODAE
1392      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1393      * fully merged and updated from SIO code
1394        windstress sign change affects
1395        - exf_inscal_[u/v]stress
1396        - sign of xx_tau[u/v] adjustments
1397        - signs in cost_scat
1398      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1399      * natl_box_adjoint updated and compressed
1400      * 2-level checkpoint switch added
1401        (tested in EXP. 1 of natl_box_adjoint)
1402      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1403    o SVD
1404      * first complete, non-hacked version for SVD calculations
1405      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1406        performed via direct access files admtlm_vector.it????
1407        (via ctrl_[un]pack)
1408      * optimcycle is used for ARPACK iteration counter
1409        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1410      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1411        and add linear transforms where necessary
1412      * controls are initial/final SST, SSS (can be extended; need to check
1413        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1414    o mdsio: filename info to both stderr, stdout
1415    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1416      from sign change
1417    
1418    checkpoint55j_post
1419    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1420      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1421    o add consistent build directories and .cvsignore files to verification
1422    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1423    o make all subroutines 30 or less characters in length for certain older
1424      compilers to work (a thorough search only turns up two routines in
1425      pkg/ptracers)
1426    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1427      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1428    
1429    checkpoint55i_post
1430    o change arrays for total vertical diffusivity (2.D if explicit,
1431      3.D if implicit) ; each ptracer uses its own background value.
1432    o added mnc/NetCDF output capability to ocn_compon_interf
1433      - added bits to verification/cpl_aim+ocn so that it can run on
1434        ITRDA and other clusters without the mpirun "-wd" option
1435    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1436      configuration
1437    o give MNC the ability to create additional files rather than
1438      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1439      - the default is just less than 2GB which is a practical limit
1440        on many systems
1441    o Compute the non-local term using either KPP vertical diffusivity (=default)
1442       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1443    
1444    checkpoint55h_post
1445    o add verification test "vermix"
1446    o remove all the *_ioinc flags and replace with the single global
1447      outputTypesInclusive flag
1448    o allow to set a vertical profile of vertical diffusivity for T & S
1449    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1450    o useMNC moved from data.mnc to data.pkg
1451    
1452    checkpoint55g_post
1453    o Renaming carbon AD experiments to comply with testreport conventions
1454    o Updating adjoint of Held-Suarez hs94.1x64x5
1455    o Fixing directives for non-ECCO forward_step, after ECCO directives
1456      have been fixed to avoid recomp. of do_oceanic_phys
1457      Works well for global_ocean.90x40x15,
1458      but recomp. issue remains for carbon
1459    o Updating adjoint output for natl_box_adjoint after
1460      pkg/ecco has been modified (see taga c55d_post)
1461    
1462    checkpoint55f_post
1463    o rename to timeave_init_fixed
1464    
1465    checkpoint55e_post
1466    o some delicate re-shuffle of store directives to avoid one
1467      extra call of do_oceanic_physics
1468      affects ecco_the_main_loop.F, do_oceanic_physics.F
1469      checkpoint_lev1_directives.h
1470    o NB: this may break global_ocean adjoint temporarily,
1471      but it is clear how to fix it. Will do later, need this now.
1472    
1473    checkpoint55d_post
1474    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1475    o ecco_cost_weights is modified to 1x1 runs
1476    o modifs to allow observations to be read in as
1477      single file or yearly files
1478    o enable to read exf forcing fields as either
1479      single file or yearly files (flag useExfYearlyFields)
1480    checkpoint55d_pre
1481    
1482    o switch between 2-level and 3-level checkpointing
1483    o add ability of MNC to write local and "partial" (eg. 2D slices where
1484      the full 3D field is never actually stored) arrays to NetCDF files
1485      with the correct (that is, the complete multi-dimensional) set of
1486      array indicies
1487      - used in mom_vecinv() to write the diagFreq output
1488      - tested (demonstrated) in verification/aim.5l_cs
1489    o further mnc-ification
1490      - add verification/lab_sea to the list with mnc setups
1491      - fix undefined mnc v-names in cd_code
1492      - add kpp to mnc output (both snapshot and timeave)
1493    o non-hydrostatic code
1494      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1495        in calc_gw.F
1496      - defaults to viscAh
1497      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1498        friction or Leith) in non-hydrostatic mode, as long as there is
1499        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1500    o pkg/cost
1501      extend simple cost functions to treat time mean quantities
1502      (T,U,V) via cost_accumulate_state from cost_tile
1503    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1504        be 2 times larger than the minimum size the advection scheme requires.
1505        now get a perfect conservation of salt in advect_cs test-exp (updated)
1506    o GGL90 (Gaspar's TKE mixed layer)
1507      - add horizontal diffusion of TKE, requires exchanges in
1508        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1509        default. In OPA there is no horizontal diffusion of TKE but the
1510        mixing coefficients are computed from a horizontal average of TKE of
1511        6 points or so. I think that diffusion has a little more physical
1512        justification.
1513      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1514        was in vain)
1515      - mask tke-variable in ggl90_init
1516    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1517    o fix biharmonic diffusion on CS-grid.
1518    o more obcs stuff
1519      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1520        for reading boundary values. This routine is called from
1521        obcs_prescribe_read
1522      - updated obcs_check
1523      - changed sponge layer relaxation parameter units for days to seconds
1524      - turned off sponge layer by default
1525      - changed argument list of OBCS_CALC to myTime+deltaTclock
1526      - fixed about 35 bugs in obcs_external_fields_load
1527    
1528    checkpoint55c_post
1529    o obcs stuff
1530      - new runtime flags useOBCSprescribe, useOBCSbalance
1531      - re-arranged obcs_calc
1532      - moved exf_getobcs to obcs_prescibe_read
1533        obcs_prescibe_read is called after ORLANSKI stuff
1534        and independent of it (executable can contain all).
1535      - updated obcs_check
1536      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1537        These may be necessary only if tangential velocities are
1538        prescribed at OB, not sure, needs testing.
1539    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1540      which simplifies the calls and passes the ifc check-bounds test
1541    
1542    checkpoint55b_post
1543    o add a 2D scalar, Z location, exchange_2 routine.
1544    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1545      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1546      affects advect_cs results (for the wrong reason): update output.txt
1547    o use a more standard discretization for biharmonic viscosity ;
1548     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1549      affects results of dome set-up: update output.txt
1550    o fix gad_advection.F (CubedSphere part), back to version 1.23
1551    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1552    
1553    checkpoint55a_post
1554    o merged code to
1555      * prescribe/read time-dependent open boundaries
1556        (works in conjunction with exf, cal)
1557      * sponge layer code for open boundaries
1558      * each boundary N/S/E/W now has its own CPP option
1559        (healthy for the adjoint)
1560    
1561    checkpoint55
1562    o up-to-date adjoint of previous breaks
1563      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1564      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1565      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1566      - carbon: * remove tr1-related adjoint verification
1567                * add ptracer as control variable
1568    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1569      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1570    
1571    checkpoint54f_post
1572    o in verification/carbin/ remove experiment related to
1573      ALLOW_PASSIVE_TRACER (array tr1 etc)
1574      code_ad/ input_ad/ results_ad
1575    
1576    o add two new packages
1577      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1578        + subject to optimization (memory)
1579      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1580        + subject to reordering (many GOTOs in the original code)
1581        + so far opps is called for every (i,j) point, and then operates in
1582          the vertical; one may want to reorder the scheme in order operate in
1583          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1584          fields)
1585    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1586      - all verification tests compile and run with linux_ia32_g77
1587      - defaults are compatible with current input files--nothing
1588        should change if you were not previously using MNC
1589      - MNC output has been added in numerous places (eg. timeave)
1590        but there are still a few writes not yet do-able with MNC
1591        (this is in progress)
1592      - flags now allow for either/or/both use of MDSIO and MNC and
1593        documentation will soon follow
1594      - numerous small formatting cleanups for ProTeX
1595    o add version info (via BUILD_INFO.h) to MNC and stdout
1596    
1597    checkpoint54e_post
1598    o add two new packages
1599      - pp81 (Packanowski and Philander, 1981), Richardson number and
1600        stratification dependent mixing
1601      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1602      - these scheme operate in a similar manner as KPP (without ghat, of
1603        course), however there is only one diffusivity that is used for both
1604        temperature and salinity (and passive tracers)ç
1605    o add offline package
1606    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1607      provided by Stephanie Dutkiewicz
1608    o genmake2: add ability to search for C compilers and cleanup test output
1609      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1610    
1611    checkpoint54d_post
1612    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1613    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1614      leading to additional shift by 5 days each year of integration
1615       (i.e. leading to considerable offset over the years)
1616    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1617    o start with no AB and no initial filtering (staggerTimeStep):
1618      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1619    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1620      (external loading & cpl import/export stay in forward_step.F)
1621    o update coupling interface to work with new staggerTimeStep
1622    o change MDSIO ptracers_pickup.
1623    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1624    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1625    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1626    
1627    checkpoint54c_post
1628    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1629      this affects (truncation error) output.txt of test-exp:
1630       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1631    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1632    o change Qnet to always be the net heat flux, (+upward).
1633      affects (truncation error) output of natl_box exp.: updated
1634    o define the max number of passive tracers in PTRACERS_SIZE.h
1635    o start to test mnc routinely in exp0
1636    o add sea-ice loading (sIceLoad) as a new forcing field.
1637    
1638    checkpoint54b_post
1639    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1640       impressive on Altix and Opteron systems)
1641    o diagnostics can now write NetCDF files through the mnc package
1642    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1643    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1644    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1645      affects (truncation error) output of lab_sea & natl_box exp.: updated
1646    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1647    
1648    checkpoint54a_post
1649    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1650    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1651    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1652    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1653      + internal_wave (shift in writing cg2d_ini_res)
1654    checkpoint54a_pre
1655    
1656    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1657      - modified verification/lab_sea and natl_box_adjoint accordingly
1658    
1659    checkpoint54
1660    checkpoint53g_post
1661    o prepare splitting of thermodynamics: store convect.counter in common block
1662    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1663      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1664    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1665    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1666    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1667    o restore adjointability
1668    
1669    checkpoint53f_post
1670    o modifications that affect AIM experiment results (update output.txt):
1671      - no advection of S at top interface Nr (pkg/generic_advdiff)
1672      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1673    o AIM pkg:
1674      - include stability function into surf.Flux derivative relative to Tsurf
1675      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1676    
1677    checkpoint53e_post
1678    o merged cylindrical coord configuration
1679    o added rotating_tank experiment
1680    checkpoint53e_pre
1681    
1682    checkpoint53d_post
1683    o faulks upgraded: re-generate output.txt that have changed:
1684       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1685    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1686    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1687    o added Sadourny discretization of Coriolis
1688      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1689      - re-enabled use of omega3 (useAbsVorticity)
1690    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1691      vector-invariant equations
1692      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1693    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1694      hopefully without new bugs
1695      - still to do: biharmonic friction for non-hydrostatic w
1696    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1697    o regenerated output for global_ocean_ebm (using -ieee)
1698    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1699      of mom_common/
1700      - simple re-arrangement of instructions within computing loop
1701    checkpoint53d_pre
1702    
1703    checkpoint53c_post
1704    o new version of coupler for AIM+thSIce and Ocean models
1705     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1706     - land: change Evaporation of snow
1707     - aim with thSIce: fix bug in snow-precip.
1708    o changes to calc_gw.F
1709     - bug fix for w^2 term near the bottom boundary
1710     - (hopefully) improve the lateral slip boundary condtions for use with
1711        partial/looped cells
1712      - because the bug fix changes two verification experiments anyway (exp5
1713        and plume on slope), change the lateral boundary condition from half slip
1714        to the value of no_slip_sides
1715    o ebm package wasnt quite up to the parallel task. Fixed that.
1716    o Adjoint of EBM package + verification
1717      * TLM OK
1718      * ADM not sufficient accuracy yet (needs further testing)
1719    
1720    checkpoint53b_post
1721    o Commiting new energy balance model to repository
1722      * package is pkg/ebm
1723      * verif. is verification/global_ocean_ebm
1724      * references are in ebm_driver.F
1725    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1726    C        Global thermohaline circulation. Part I:
1727    C        Sensitivity to atmospheric moisture transport.
1728    C        J. Climate 12(1), 71-82
1729    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1730    C        Global thermohaline circulation. Part II:
1731    C        Sensitivity with interactive transport.
1732    C        J. Climate 12(1), 83-91
1733    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1734    C        Destabilization of the thermohaline circulation
1735    C        by atmospheric eddy transports.
1736    C        J. Climate 7(12), 1870-1882
1737    o Will need long integration testing.
1738    checkpoint53b_pre
1739    
1740    o created pkg/mom_common in preparation for variable viscosity code
1741    o renamed and split ini_mnc_io
1742    o pkg/land: only liquid water can diffuse or run-off
1743    o AIM using land: soil wetness availability account for snow
1744    o added printMapIncludesZeros to EEPARMS namelist
1745    
1746    checkpoint53a_post
1747    o restore TAMC compatiility for exf_constants.h
1748      (no usage of _d in .h)
1749    o Additional storing in KPP in an attempt to fix
1750      TAMC problem with adjoint of KPP code.
1751      (no success...)
1752      Identical code works fine with TAF.
1753    o Fixed verification/natl_box_adjoint experiments.
1754      Initial conditions for Experiments 4 and 5 are now
1755      set to "SEAICE_initialHEFF=0", which is more reasonable,
1756      and hence gives results closer to that of Experiment 2.
1757      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1758    
1759    checkpoint53
1760    o stable checkpoint with up to date adjoint
1761      TLM tests only run for 1st grdchk at the moment. Its unclear if
1762      this is a code problem or a problem with resetting code for g_
1763      variables that is being autogenerated wrong.
1764      Otherwise:
1765       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1766       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1767         are both still in chaos following their security messes.
1768    
1769    checkpoint52n_post
1770    o various build (mostly genmake2) changes including:
1771      - ability to build/run more easily within Cygwin and MacOS X
1772      - more complicated Makefiles with a stronger dependence on Gnu Make
1773    o pkg/seaice modifications
1774      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1775        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1776        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1777      - changed proxy for geostrophic velocity and updated
1778        verification/lab_sea/results/* accordingly
1779      - removed ADI dynamic solver from pkg/seaice
1780      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1781        they caused a segmentation fault under certain circumstances
1782      - removed unused field WATR
1783    o bug fix in exf-package:
1784      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1785         now reflect that.
1786    o small fixes in the cal-package:
1787      - set reference date to first of January for the 'model'-calendar
1788      - failing of cal_CheckDate in cal_FullDate now actually results in a
1789        warning
1790    o small modifications in exf-package to increase flexibility:
1791      - change climtempfreeze from a constant to a runtime parameter that
1792        is specified in data.exf_clim (default = -1.9)
1793      - introduce runtime parameter windstressmax (default = 2.0) that is
1794        specified in data.exf
1795    o fix in pkg/thsice:
1796      - update Evap (Tsf changes) to be consistent with Latent heat flux
1797      - maintain snow precipitation unchanged (even if Tsf >=0).
1798     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1799    
1800    checkpoint52m_post
1801    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1802      this does not change any of the results, because myIter=0 in swfrac always
1803      lead to jwtype=2 (the default anyway), but the call makes little sense
1804      as a default
1805    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1806    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1807      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1808    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1809    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1810    o extending useSingleCpuIO option to work with new exch2 I/O format
1811      - old-style, missing-tile I/O is still accessible by defining CPP
1812        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1813    o monitor package can write to NetCDF files and/or STDOUT
1814    o fix re-definition bug in MNC_GRID_INIT_ALL()
1815    o doc/api_reference added
1816      - a framework for building an API Reference Manual using all
1817        the "protex" comments embedded in the code
1818      - see pkg/generic_advdiff, pkg/mnc for examples
1819    o MNC:
1820      - make myThid the last argument for all subroutines
1821      - new default for the grid files: NO halos
1822      - add useMNC and other run-time flags
1823      - separate per-file-group handling of the unlimited dimension
1824      - early initialization of MNC w/ flags read at the eeboot stage
1825        and lookup tables set in initialize_fixed
1826      - write all MNC output to a freshly-created directory
1827    o thermodynamics sea-ice (thsice) is now tested with testreport.
1828    o test exp. advect_cs: use the standard cs32 grid ; update output.
1829    o Added functionality to grdchk:
1830      pick global i,j,k position (or nearest wet) where to perform check.
1831    
1832    checkpoint52l_post
1833    o new land formulation:
1834      a) use ground enthalpy as prognostic variable to ensure exact
1835         energy conservation.
1836      b) account for water temperature and for latent heat of freezing
1837         in all processes (rain, run-off, ground storage)
1838      c) compute surface and ground temperature implicitly.
1839    o aim_v23 modification for new land model:
1840      a) Treat separately land / ocean / sea-ice surface fluxes
1841         to allow implicit computation of land & sea-ice surface temp.
1842      b) add snow precipitation.
1843    checkpoint52l_pre
1844    
1845    o fix problem (when 1 tile is empty) in min/max monitor.
1846    o fix bug in timeAve (u,vZetatave in common block)
1847    o no restoring terms under ice for pkg/seaice
1848    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1849    o bug fix for pkg/seaice pickups
1850    o change MNC call locations and add coordinate attributes
1851    o mask vorticity at the corner ; affects global_ocean.cs output
1852    o fix ini_curvilinear_grid ; test CS experiments with mpi
1853    o aim.5l_cs: modify sea-ice fraction input file ; update output
1854    o exf: Adding simple range check routine for exf fields after read
1855    
1856    checkpoint52k_post
1857    o removed top-level directory "diags"
1858      - we migrated these functions to pkg/timeave a long time ago
1859    o fixed bug introduced in pkg/monitor
1860    o accuracy ctrlprec = 32 insuffient for gradient checks using
1861      averaged fields (I/O via cost_averages)
1862      -> use ctrl.h in active_file*.F to control I/O precision.
1863    o paramter list of CALL ADTHE_MAIN_LOOP
1864    o added initial do_the_model_io to ecco
1865    o set all ...Freq to zero after cost_final
1866      taveFreq, dumpFreq, pChkptFreq
1867    o MAIN and ECCO differentiability restored
1868    
1869    checkpoint52j_post
1870    o fix nchklev in tamc.h for global_ocean...
1871    o Bringing flow and store directives up-to-date
1872    o Really weird thing!
1873      call do_the_model_io from the_main_loop with parameters
1874      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1875      TAF places a faulty re-call of initialise_varia
1876      after cost_final call which should not be there!
1877    checkpoint52j_pre
1878    
1879    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1880      error messages
1881    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1882    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1883      debug output
1884    o modfied mdsio_writefield.F to handle non-global files under exch2
1885    o update AIM Cubed-Sphere exp (aim.5l_cs):
1886      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1887    o update AIM Equatorial Channel exp:
1888      use standard aim_v23 pkg and change the SST fields to be more realistic.
1889    o globalFile now works with exch2
1890    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1891      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1892    o limit timeave output for hi-res integrations
1893    
1894    checkpoint52i_post
1895    o removed CPP_EEOPTIONS.h from verification/*/code
1896    o updated the tiling for global_ocean_pressure
1897    checkpoint52i_pre
1898    
1899    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1900      the old pkg/aim).
1901    
1902    checkpoint52h_pre
1903    o shortened offending lines in exch2_send_rx?.template
1904    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1905    o genmake2: add build & execute test for NetCDF code
1906    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1907      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1908    o added useSingleCPUIO flag to monitor.F and mon_out.F
1909    o added temporary hack for sea-ice dynamics on the cube:
1910      metric terms are ignored and it is assumed that
1911      there is no sea-ice on cube faces 1, 2, 4, and 5.
1912    
1913    checkpoint52f_post
1914    o added exch2 cube routines to pkg/exch2
1915    o modified hs94.cs-32x32x5 to use it
1916    o added new grid files to hs94.cs-32x32x5
1917    checkpoint52f_pre
1918    
1919    checkpoint52e_post
1920    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1921      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1922    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1923      to work with implicit vertical advection and AB ;
1924    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1925    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1926     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1927    checkpoint52e_pre
1928    
1929    o fix bug in impldiff when Nr=1 or Nr=2.
1930    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1931    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1932    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1933      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1934    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1935    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1936    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1937    
1938    checkpoint52d_post
1939    o re-tiled many expts to allow comparison in multi-processor mode
1940      - updated output accordingly
1941      - changed hs94.128x64x5 to use intial T from file rather than use the
1942        random number generator
1943    o add infrastructure in model routines for fizhi and gridalt packages
1944    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1945    o changes to permit hi-res, cubed-sphere, configuration
1946      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1947      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1948      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1949        of surface winds for the cube
1950      (A verification experiment, based on global_ocean.cs32x15, but with
1951       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1952       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1953       complete with example surface forcing files and matlab scripts to look
1954       at the output and compare it with that of global_ocean.cs32x15.)
1955    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1956       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1957       to conform to the common rule.
1958    o check-in the first version of the coupler + interfaces for multi-components
1959       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1960       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1961       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1962       - ocean and atmos. share the same horizontal grid (no interpolation).
1963       - exchanges between component and coupler is done in forward_step
1964    o new verification experiment, cpl_aim+ocn:
1965       coupled ocean - AIM atmosphere on cs32 grid.
1966    
1967    checkpoint52d_pre
1968    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1969    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1970    
1971    checkpoint52c_post
1972    o Fixing OPTIONS files for use of exf:
1973      - ALLOW_ECCO not needed
1974      - ECCO_CPPOPTIONS.h should not be included from
1975        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1976        as has been the case in the past
1977      - All cal/exf related options are currently set in
1978        single header file. Should remain so until we
1979        agree on a consistent new policy.
1980    o Removed all CPP options for cal package.
1981      cal has no more CPP options.
1982    o modified STOREs in GAD_ADVECTION
1983    o corrected key comp. for passkey
1984    
1985    checkpoint52b_post
1986    o new version: "thsice" of thermodynamic sea-ice pkg:
1987     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1988     - modify fluxes but do not change theta directly;
1989     - light cleaning of bulk_force pkg (still needed with thsice).
1990     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1991       + output_thsice.txt to test thsice & bulk_force pkgs.
1992    o put back grid & coriolis monitor output.
1993    checkpoint52b_pre
1994    
1995    o call "do_the_model_io" at the beginning (=> dump initial state)
1996    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1997    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1998      (need info on NUMBER_OF_PTRACERS)
1999    o missing PTRACERS headers in some routines
2000    o default tamc.h in pkg/autodiff supposed to crash
2001      to ensure proper customization
2002    
2003    checkpoint52a_post
2004    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2005      - moved surfaceTendencyTice from pkg/seaice to main code
2006      - subroutine FREEZE_SURFACE now limits only surface temperature
2007        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2008        => new output.txt for global_ocean.cs32x15 & global_with_exf
2009      - keep the old version of FREEZE for backward compatibility;
2010        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2011      - corresponding modifs for TAF directives
2012    o added surface flux output variables to TIMEAVE_STATVARS
2013    o time-averaged output for pkg/ptracers
2014    o fix problem with ECCO-related divided adjoint
2015      snapshot file was missing some ad-variables,
2016      but no warning issued by TAF
2017    
2018    checkpoint52a_pre
2019    o some bug fixes for #undef REAL4_IS_SLOW
2020    
2021    checkpoint52 = ecco_c52_e35
2022    o after testing adjoints of checkpoint51u_post
2023    
2024    checkpoint51u_post
2025    o this is the post-merge tag of the ecco-branch
2026      (needs another clean checkout and re-testing)
2027    o various natl_box_adjoint configs and results
2028      but no input fields
2029    o obcs adjoint not yet merged!
2030    o adding ECCO global 1x1 and 2x2 degree configs
2031    o updated/extended some store directives for seaice
2032    o pkg/ecco now containes ecco-specific part of cost function
2033    o top level routines the_main_loop, forward_step
2034      supersede those in model/src/
2035      previous input data.cost now in data.ecco
2036      (new namelist ecco_cost_nml)
2037    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2038    
2039    checkpoint51t_post
2040    o this is the pre-merge tag of the ecco-branch
2041    
2042    checkpoint51s_post
2043    o cleanup: removed various obsolete #define-s
2044    o pkg/grdchk
2045      - renamed 'ph-grd 3' to 'grad-res'
2046      - merged from ecco-branch
2047        (remaining bug fixes for obcs gradient checks)
2048      - additional high-precision output for testreport
2049        (grep for 'precision_grdchk_result')
2050    
2051    checkpoint51r_post
2052    o cleaned up or removed CPP_OPTIONS.h files
2053    o updated results for some of the tests to reflect the new
2054      optfiles (-ieee: -O0 instead of -O3)
2055    
2056    checkpoint51q_post
2057    o cd_code:
2058      - moved cd_scheme.F -> cd_code_scheme.F
2059      - separate read_checkpoint from cd_code_ini_vars.F
2060      - separated cd_code part from write_checkpoint
2061      - updated AD_SOURCE, generated .flow
2062      - added CD_CODE_VARS.h to the_main_loop
2063      - Moving cd_code specific store dir.s to pkg/cd_code
2064    o ctrl package totally restructured
2065      - pack/unpack now optional and decoupled from
2066        xx_/adxx_ I/O
2067      - ctrl_pack/unpack cleaned
2068        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2069      - confined inclusion of AD_CONFIG.h to where necessary.
2070    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2071    
2072    checkpoint51p_post
2073    o create initial cd_code package
2074      - WARNING: the initialization of fields within packages
2075        is broken because INI_FIELDS (where READ_CHECKPOINT is
2076        called) is called *before* PACKAGES_INIT_VARIABLES.
2077        This seems to be backwards since
2078        1) its important to initially zero the entire field including
2079           the "halo" region
2080        2) zeroing needs to be done *before* reading pickup info
2081           and the pickup call might or might not happen in any
2082           particular run
2083      - this needs an overhaul for R2
2084    o cleanup verification/*/code/GMREDI_OPTIONS.h
2085    o cleanup testreport
2086    
2087    checkpoint51o_post
2088    o bringing AD-related verif's up to date with genmake2
2089      - carbon/
2090      - global_ocean.90x40x15/
2091      - hs.94.1x64x5/
2092      - (front_relax/ )
2093    o (more) consistent directory structure for AD-related verif.'s
2094    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2095    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2096    o bug fix in find_alpha.F for MDJWF:
2097      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2098        change rho -> rho-rhoConst
2099      - replace call find_rho to find_rhonum
2100    o initialisation of rFlx extended to full array (required by TAF)
2101      and shifted to thermodynamics
2102    o removed PTRACERS.h in ptracers routine
2103    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2104    o Correcting initialisations for fVerU, fVerV.
2105    o helping TAF to recognize dependency on kUp for
2106      fVerU, fVerV
2107    o Replacing delZ by delR in pkg/ctrl/
2108    checkpoint51o_pre
2109    
2110    o undid all of cp51 pending some cleanups and discussion
2111    o added the [#include "AD_CONFIG.h"] statement to all files that need
2112       it for adjoint/tl #defines
2113     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2114     o removed tools/genmake since it no longer works
2115    
2116    checkpoint51n_post
2117    o modifications to make FREEZE flux visible to pkg/kpp
2118      - moved surfaceTendencyTice from pkg/seaice to main code
2119      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2120      - subroutine FREEZE now limits only surface temperature
2121        (this means new output.txt for global_ocean.90x40x15,
2122         global_ocean.cs32x15, and global_with_exf)
2123    o added surface flux output variables to TIMEAVE_STATVARS
2124    
2125    checkpoint51n_pre
2126    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2127    o added [#include "AD_CONFIG.h"] to all files that use the following
2128      defines:
2129      - ALLOW_ADJOINT_RUN
2130      - ALLOW_TANGENTLINEAR_RUN
2131      - ALLOW_ECCO_OPTIMIZATION
2132    
2133    checkpoint51m_post
2134    o incorporating changes to get TAMC/TAF working in genmake2
2135      - added new TAMC/TAF targets to the Makefile
2136      - various cleanups related to package handling
2137      - these changes should have no impact on the forward model
2138    
2139    checkpoint51l_post
2140    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2141     - faster algorithm for cal_addtime.F
2142     - higher precision arithmetic, where needed
2143     - pkg/exf *startdate variables changed from calendar date to
2144       model integration time
2145    
2146    checkpoint51l_pre
2147    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2148    o enable to apply restoring on S & T only in a latitude band.
2149    o update output (external_forcing_surf modif. change truncation errors)
2150       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2151    
2152    checkpoint51k_post
2153    o change default to: useNHMTerms=.FALSE.
2154     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2155       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2156     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2157        exp1, ideal_2D_oce
2158     - change data file of oceanic exp (leave the results unchanged for now)
2159       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2160    o set gravitySign automatically according to the vertical coordinate used
2161      (and change sign: back to "logical" value: +1 when R increases downward)
2162    o added an include barrier to the default CPP_OPTIONS.h and
2163      removed the #include "PACKAGES_CONFIG.h" from it
2164    o fix a bug in mom_fluxform (from chk51j_post)
2165    
2166    checkpoint51j_post
2167    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2168    o adjusted some flow directives (dynamics, thermodynamics)
2169    o added cubed-sphere case to test cost function
2170    o heckpoint_lev?_directives.h now include
2171      pkg-specific directives, whenever those are enabled.
2172    o Moving pkg-specific flow directives to corresponding pkg
2173      Moving pkg-specific differentiation list to corresponding pkg
2174      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2175      ---> conventions are
2176           - pkg_ad.flow
2177           - pkg_ad_diff.list
2178           - pkg_ad_check_lev?_dir.h
2179    
2180    checkpoint51i_post
2181    o merge of the branch-genmake2
2182      - knowingly breaks the older genmake
2183      - automatic generation of all ALLOW_${PKG_NAME} defines
2184      - new testreport supersedes older testscript
2185    o large number of package inclusion and header cleanups
2186    checkpoint51i_pre
2187    
2188    o new output for adjoin of global ocean vector invariant
2189    o fix for checkpoint of thermodynamic seaice and bulk_force
2190    o Steph gchem various cleanups
2191    
2192    checkpoint 51h_pre
2193    o fixed some single quotes
2194    o modify gchem pkg to be more versatile
2195    o modifications to clean up dic pkg
2196    o add pkg/cfc
2197    
2198    checkpoint51g_post
2199    o provide links for ARPACK and ADM*TLM
2200    o start removing verification/vero/
2201    o update AD-related stuff
2202      (in particular some IF-statements in model/src/ routines)
2203    o adding to verification/global_ocean.90x40x15/ adjoint of
2204      vector invariant setup
2205    
2206    checkpoint51f_post
2207    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2208    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2209      of tracer Green's fucntions for ocean inversion project.
2210    
2211    checkpoint51f_pre
2212    o Added on-the-fly spatial interpolation capability
2213        "USE_EXF_INTERPOLATION" to pkg/exf.
2214      - This is a temporary Cartesian-grid hack until
2215        the super-duper ESMF coupler becomes available.
2216      - See verification/global_with_exf/README for usage example.
2217      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2218        flags and modified pkg/seaice accordingly.
2219    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2220        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2221        non-local transport term.
2222    
2223    checkpoint51e_post
2224    o pkg/mom_vecinv:
2225      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2226      - add time-ave diagnostic of vorticity advection.
2227    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2228    o atmospheric geopotential: - include water vapor effect;
2229                                - use p^kappa in p* scaling.
2230    o land pkg: read initial state from files.
2231    o AIM : add stratospheric drag in the upper level
2232    
2233    checkpoint51d_post
2234    o change function ILNBLNK (=> last non-blank char.) to return zero
2235      (instead of the string length) when the string. char is empty
2236    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2237    o modif's to restore TAMC compatibility
2238      - avoid "_d" constructs in PARAMETER declarations
2239      - avoid interrupting lines by comment lines
2240    o Use cluster local disks for purely local I/O
2241      vs. globally visible disks needed for ctrl stuff
2242      (merged from ecco-branch)
2243      - new active_file_loc... and mdsio_..._loc routines
2244      - affected packages: autodiff, ctrl, grdchk, mdsio
2245    
2246    checkpoint51c_post
2247    o introducing integer flag debugLevel
2248      - debLevZero: suppress all output
2249      - debLevA: standard
2250      - debLevB: equivalent to current debugMode=.TRUE.
2251    o introducing pathname variable mdsioLocalDir for mdsio
2252      that can be specified at runtime
2253      (relevant for cluster I/O to local disk)
2254    `
2255    >>>checkpoint51b_post
2256    adjoint of ptracers
2257    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2258    o extended state in checkpoint_lev?, etc.
2259    o alternative ctrl/cost with tr1 or ptracer
2260    o new comlev1_bibj_ptracers
2261    o new ptracers.flow
2262    o made ptracers_forcing same as external_forcing_s
2263    o added verification for adjoint with ptracers
2264      - adm. grdchk fail so far
2265      - tlm. grdchk OK
2266      - checked tapelev/comlev recomputations: OK
2267    <<<checkpoint51b_pre
2268    
2269    checkpoint51a_post
2270    o added code for biogeochemistry package
2271      - new pkgs: dic, gchem
2272      - new subroutine in ptracers
2273    o modify code for biogeo packages
2274      - in model/src and pkg/ptracers
2275    
2276    checkpoint51
2277    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2278      - autodiff, ctrl, exf, grdchk, seaice
2279      kept separate packages
2280      - cost, ecco, obcs
2281    o updating verification/internal_wave, verification/lab_sea
2282      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2283    
2284    checkpoint50i_post
2285    o Preparing next differentiable checkpoint and sync
2286      of MAIN vs. ecco-branch
2287      - 1st step: this one is differentiable
2288      - 2nd step: next(! not this) checkpoint will have updated packages
2289                  from ecco-branch)
2290    
2291    checkpoint50h_post
2292    o new package "land": provide surface BC for AIM.
2293    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2294    o AIM: use true log-P extrapolation for near surface temp (= as in
2295        F.Molteni paper) ; update aim.5l_cs output.
2296    o New variable in PARM03 for more flexible pickups
2297    o somewhat cleaned package initialisation sequence for
2298      ctrl/ cost/ ecco/ in packages_... routines
2299    
2300    checkpoint50g_post
2301    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2302      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2303      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2304        made the default because of faster convergence than ADI
2305    
2306    checkpoint50f_post
2307    o exf totally restructured
2308      - replaced all exf_set_ routines by one generic exf_set_gen.F
2309        and made sure it's still differentiable
2310      - split exf_getffields.F into new exf_bulkformulae.F
2311      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2312      - updated adjoint/makefile and relevant verif. accordingly
2313    
2314    checkpoint50f_pre
2315     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2316          + change Evap over land. (update aim.5l_cs output)
2317     o added missing .cvsignores and made uniform across expts
2318     o changed configuration of tidal_basin_2d expt
2319     o added pkg/debug functions for tracing code in fatal crashes
2320     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2321     o new fn in pkg/monitor to stop model if solution grows too big
2322     o removed lots of single quotes from comments
2323    
2324    checkpoint50e_post
2325    o make KPP work with PTRACERS
2326     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2327       nearly a copy of kpp_transport_s
2328     - there is no analogue to SurfaceTendencyS, so I have to use
2329       gPtr(of the surface layer) instead
2330    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2331    checkpoint50e_pre
2332    
2333    checkpoint50d_post
2334    o change kpp output from multiple-record state files to single-record state
2335      files analogous to write_state.F
2336    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2337      analogous to the cg2d-related output.
2338    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2339      so that writing to internal file fn (with length 512) fails.
2340    checkpoint50d_pre
2341    
2342    checkpoint50c_post
2343    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2344    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2345    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2346    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2347    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2348    
2349    checkpoint50c_pre
2350    Merging from release1_p13:
2351    o bug fix for pkg/seaice dynamic solver
2352    o Added SEAICE_initialHEFF to pkg/seaice
2353    
2354    checkpoint50b_post
2355    o store u*,v* in gU,V instead of in guNm1,gvNm1
2356    o in order to put the momForcing out of the Adams-Bashforth:
2357      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2358      to timestep.F
2359    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2360    o re-generate output for highly sensitive test-exp:
2361       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2362    
2363    checkpoint50b_pre
2364    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2365    o corrected CPP option mismatch in exf_Bulk... functions for case
2366      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2367    
2368    checkpoint50a_post
2369    o Bug fix for merging between c50 and KPP.
2370      ikey was passed from thermodynamics to kpp_calc via
2371      common block rather than being recomputed in kpp_calc,
2372      in contradiction with new key itdkey.
2373      New key ikppkey created, and tamc.h headers updated.
2374    
2375    checkpoint50
2376    - 2nd step of merge with ecco-branch:
2377      merge changes in ecco-branch back into main trunk
2378    - bug fix in find_alpha
2379    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2380    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2381    - merged some sliced AD support routines
2382    
2383    checkpoint49
2384    merged from ecco-branch:
2385    o exf:
2386      - Enable initialisation of forcing fields to constant
2387        (runtime) values.
2388      - in exf_getffields.F
2389        Reduce i-/j-loop to interior domain, discarding overlaps.
2390        That also fixes wrong TAF-key computations for key_1, key_2
2391        with bulf formulae.
2392      - exf_init.F modify #ifdef for exf_init_evap
2393      - exf_getffieldrec.F, ctrl_getrec.F
2394        The following INT-usages are not safe:
2395          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2396          fldcount = int(fldsecs/fldperiod) + 1
2397        and were modified.
2398    o autodiff: checkpoint_lev...
2399      - updated storing for bulk formulae (some arrays were missing)
2400      - added state for seaice package
2401      - synchronized with main branch
2402    o DIVA:
2403      Modif.s in
2404      - the_main_loop.F
2405      - the_model_main.F
2406      and added cost_final_restore.F cost_final_store.F
2407      o With these changes, it is possible to fully separate
2408        the first forward run to compute the cost function (mdthe_main_loop)
2409        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2410        into separate model executions.
2411        This enables better tuning of DIVA to given queue sizes.
2412      o Loss of cost function value in consecutive DIVA runs is
2413        fixed by storing to 'costfinal' file.
2414      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2415        beginning/end of adjoint integration is accounted for.
2416      The current changes apply to TAF-1.4.26.
2417      TAF has one remaining bug, requiring one manual change
2418      (see MITgcm manual).
2419    o cal: synchronized between MAIN and ecco-branch
2420    
2421    checkpoint48i_post
2422    o Changes to restore differentiability of code w.r.t. previous tag
2423      (mostly adding new routines to make list and replacing
2424      pressure by totPhiHyd).
2425    o Updated and merged grdchk package
2426      - has both ADM and TLM checks
2427      - works for single- and multi-proc.
2428      - output cleaned
2429      - worked successfully for parallel DIVA
2430    o genmake:
2431      - Adding -platform=SP4
2432      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2433    o Modif. for DIVA:
2434      ctrl_unpack should not be called in intermediate DIVA interval.
2435      (similar thing would apply for active files such as
2436      tbar, sbar, psbar, which should not be reinitialised;
2437      only relevant for ecco-branch)
2438    
2439    checkpoint48h_post
2440    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2441    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2442    o Added SEAICE_initialHEFF to pkg/seaice
2443    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2444    
2445    checkpoint48g_post
2446    --- EOS:
2447    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2448      store total Potential in totPhyHyd for diagnostics & EOS.
2449    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2450    --- Pressure/geopotential gradient:
2451    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2452    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2453      ( changes results of global_ocean_pressure )
2454    o NLFS + z-coord.: add eta*Rho' contribution.
2455    o accurate phiHyd when using interface-W at the middle between 2 centers
2456     ( changes results of ideal_2D_oce )
2457    o includes r* 2nd term in potential gradient.
2458    
2459    checkpoint48f_post
2460    Merging from release1_p12:
2461    o Modifications for using pkg/exf with pkg/seaice
2462      - improved description of the various forcing configurations
2463      - added basic radiation bulk formulae to pkg/exf
2464      - units/sign fix for evap computation in exf_getffields.F
2465      - updated verification/global_with_exf/results/output.txt
2466    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2467      (SBO) core products, including oceanic mass, center-of-mass,
2468      angular, and bottom pressure (see pkg/sbo/README.sbo).
2469    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2470      to avoid negative values in shallow regions.
2471      - updated verification/natl_box/results/output.txt
2472      - updated verification/lab_sea/results/output.txt
2473    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2474    o Added useSingleCpuIO option (see PARAMS.h).
2475    o Updated useSingleCpuIO option in mdsio_writefield.F to
2476      work with multi-field files, e.g., for single-file pickup.
2477    o pkg/seaice:
2478      - bug fix in growth.F: QNET for no shortwave case
2479      - added HeffFile for specifying initial sea-ice thickness
2480      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2481    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2482      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2483    o pkg/seaice:
2484      - adjoint-friendly modifications
2485      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2486    
2487    checkpoint48e_post
2488    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2489    o dynamics: change definition of computational domain & adapt mom_fluxform
2490      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2491    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2492        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2493        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2494        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2495        inverted_barometer solid-body.cs-32x32x1
2496      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2497    
2498    checkpoint48d_post
2499    o in preparation for r*:
2500     a) use pre-computed gradient of hydrostatic potential:
2501        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2502     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2503        => affects results of glob_oce_pressure (different truncation error)  
2504      update output.txt of ideal_2D_oce & global_ocean_pressure
2505    
2506    checkpoint48d_pre
2507    o in preparation for r*:
2508      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2509      pass the 2 comp. of the grad. as arguments to momentum S/R.
2510      but for the moment, only used if it does not change the results.
2511    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2512    
2513    checkpoint48c_post
2514    Modifications in treatment of initial flux forcing controls
2515    to avoid extra storing of flux fields.
2516    
2517    checkpoint48c_pre
2518    o Added tidal_basin_2d experiment (currently 1D!)
2519    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2520    
2521    checkpoint48b_post
2522    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2523     (modification to pressure gradient not yet implemented)
2524    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2525      (for U & V) that are used for vertical advection of momentum.
2526    
2527    checkpoint48a_post
2528    o In preparation for r*, use temp. array to compute vertical transport
2529       in flux-form momentum pkg. => change results of few test-exp.
2530      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2531                        lab_sea, natl_box & plume_on_slope
2532    
2533    checkpoint48
2534    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2535    
2536    checkpoint47j_post
2537    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2538    o moved adexch from forward_step to addummy_in_stepping
2539    o added exch in ctrl_map_...
2540    o aveFreq.=0. at end of cost_final to avoid overwrite in
2541      reverse checkpointing loop
2542    o Yet more changes in gmredi:
2543      * adgmredi_calc_tensor
2544        avoiding all recomputation of gmredi_slope_limit
2545      * adgmredi_x/y/rtransport
2546        added flag for excessive storing to avoid recomp. of
2547        u/v/rtans, dTdx/y/z
2548        -> this is not really necessary and very memory-consuming
2549      * adgmredi_slope_psi:
2550        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2551      * gmredi_slope_limit
2552        re-activated full calculation of taperfct for case 'ac02'
2553    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2554    
2555    checkpoint47i_post
2556    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2557    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2558      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2559    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2560    o gmredi: fix few bugs.
2561    
2562    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2563    This will be a good checkpoint to plug into the ecco-branch.
2564    o few modif.'s to get latest version adjointed
2565      (mainly kick out code in ini_linear_phisurf)
2566    o modif's to run adjoint with exactConserv
2567    o case GM_BOLUS_ADVEC should be cleaned
2568      S/R gmredi_slope_psi should be cleaned
2569    o verification/carbon now has exactConserv=.TRUE.
2570    
2571    checkpoint47g_post
2572    o time-average AIM output: becomes independent from statvars time-average
2573      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2574    o After TAF bug fix:
2575      Tested adjoint of gmredi package.
2576      Tests were done with checkpoint47 rather than with latest
2577      checkpoint47f_post since the latter is broken for the adjoint
2578      verification/carbon/ contains both ADM and TLM gradient checks.
2579    Here they are, before they get changed/lost/stolen.
2580    Mostly modif.'s to fix numerical sensitivities.
2581    Gradient checks OK for
2582    - GM_taper_scheme:
2583      * clipping
2584      * ac02
2585      * linear
2586      * glw91
2587      * dm95
2588      * ldd97
2589    - GMREDI_OPTIONS:
2590      * GM_VISBECK_VARIABLE_K
2591      * GM_NON_UNITY_DIAGONAL
2592      * GM_EXTRA_DIAGONAL
2593      * GM_BOLUS_ADVEC
2594    in conjunction with data.gmredi parameters to be checked in
2595    in a few minutes under verification/carbon/code/
2596    
2597  checkpoint47f_post  checkpoint47f_post
2598  Merging from release1_p10:  Merging from release1_p10:
2599  o modifications for using pkg/exf with pkg/seaice  o modifications for using pkg/exf with pkg/seaice

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