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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.829 by jmc, Mon Jun 4 00:51:28 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    checkpoint59c
8    o add S/R and diagnostics for oceanic mixed-layer depth
9    o move GMRedi call after all vertical mixing schemes (including KPP)
10    o pkg/thsice:
11     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
12      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
13    o pkg/obcs:
14     - bug fix for balance code
15    o pkg/seaice:
16      - allow values of SEAICE_elasticParm > 1
17      - add new parameter SEAICE_evpTauRelax as an alternative
18        to SEAICE_elasticParm
19      - make lsr boundary conditions free slip (by default), changes result
20      - add code for no slip boundary conditions for lsr
21      - set minimum of zeta to zero (and not 4e8) (changes results)
22      - add a cap on AREA after advecting AREA if seaice_growth is not called
23    o change calculation of Visbeck K:
24      - no longer depend on tapering scheme; instead, compute slope (limited
25        by GM_maxSlope). this is equivalent to what was comuted before with
26        clipping or linear tappering.
27      - fix vertical averaging (wrong by 1/2 level)
28      - leave the old version (but will not be maintained) within
29        #ifdef OLD_VISBECK_CALC / #endif
30      - update output of exp. ideal_2D_oce
31    o change error catch in calc_r_star to improve vectorization
32    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
33      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
34    o adjoint:
35      Re-organized adjoint checkpointing according to Matt Mazloff
36      (but with modifs/completions/cleanups)
37      Storing is now bundled into large arrays to optimized I/O
38      (and second step in cleanup of the_main_loop)
39    
40    checkpoint59b
41    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
42      - export/import (between ocean & coupler) fields needed for ocean DIC.
43    o pkg/seaice:
44      - get rid of three more exchanges seaice_calc_viscosities (required
45        different loop boundaries in seaice_lsr and seaice_ocean_stress)
46      - bug fix in seaice_ocean_stress (update of lab_sea required)
47      - reduce loop boundaries to necessary minimum also in seaice_evp
48      - go back to the old way of computing deltaC/Z as the adjoint likes that
49        better
50    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
51      passive tracer to an Age Tracer) + update output.txt
52    o pkg/exf:
53      - implement A-grid / C-grid selection for wind-stress input files.
54      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
55      for now, in exf_bulk_largeyeager04.F only :
56      - change implementation for case where windspeed + 2. components wind-stress
57        are read-in. AND use rhoConstFresh to convert evap.
58    o pkg/seaice:
59      - use correct EXCH_UV for wind-forcing (on A-grid).
60      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
61        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
62    o pkg/exf:
63      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
64      EXF_INTERPOLATION:
65      - merge global_with_exf/code version of exf_interp_read.F
66        to the main code ;
67      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
68        reading the file ; Important: This options needs to be defined to recover
69        previous code.
70        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
71      - no longer loose real*8 precision along the way when using exf_iprec=64.
72    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
73      - change discretisation of evp-solver in order to avoid another exchange
74        (changes lab_sea) and clean up a little
75      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
76        help the adjoint (this also changes the results slightly)
77      - add a few "_d 0" where they had been missing in seaice_evp.F
78      - cleaning up: remove unused seaice_calc_rhs.F
79    o pkg/exf: some cleaning-up:
80      - change various "constants" into runtime parameters
81      - cleaned-up Large&Yeager04 routine which should eventually
82        replace exf_bulkformulae.F (changed names of S/R and CPP)
83        and merged various ALLOW_ATM_WIND options
84     only used with thsice pkg (in thsice_get_exf.F):
85      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
86        which are used when useStabilityFct_overIce=TRUE (= the default)
87      - change default values of ice & snow emissivity and scale downward LW
88        by ice & snow emissivity.
89    o pkg/thsice:
90     fix few little problems, in thsice_calc_thickn.F:
91      - growth vertically (and not laterally) if iceFrac == iceMaskMax
92      - melt only laterally if hIce < hThinIce (as the comments say)
93      and in thsice_extend.F:
94      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
95      - start to form ice as soon as the minimum ice-volume is reachable.
96     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
97      and cpl_aim+ocn
98    o pkg/kpp
99     - move computation of surface related input fields to KPP into a new
100       subroutine kpp_forcing_surf.F
101     - remove wrong (within bi,bj loops) EXCH calls.
102     - little cleaning (add argument myThid in last position, cvs header ...)
103     - for now, fix conservation problem by exchanging KPPviscAz (may not
104       be the best fix)
105    o pkg/seaice
106     - check for inconsistent evp parameter/cpp-flag combination
107     - remove leftover errIO flat for obsolete name list error handling
108    o OpenAD
109     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
110    
111    checkpoint59a
112    o pkg/seaice: some parameter clarifications and a little bit of clean up
113    o pkg/thsice: rename run-time parameters:
114       himin       -> hIceMin
115       himin0      -> hThinIce
116       hihig       -> hThickIce
117       i0          -> i0swFrac
118       transCoef   -> bMeltCoef
119       frac_energy -> fracMelting
120      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
121       with default values (for now) that do not change the results.
122      remove old version of thsice vars advection in pkg/seaice.
123    o in FFIELDS.h:
124      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
125      - make pLoad & sIceLoad always available (but still only used if
126         ATMOSPHERIC_LOADING is #define).
127    o pkg/kpp: replaced _KPP_RL with _RL
128    o bug fixes for vertical diffusivity computations when both KPP and
129        3D diffusivity arrays are used.
130    o pkg/seaice: fix bug in evp solver, while doing that
131      - change (improve?) discretization of stress computations for both
132        cgrid-lsr and evp solver
133      - add a new routine to compute strain rates
134      - the above changes lab_sea results
135      - add no slip conditions for evp solver (off by default), lsr-version
136        may follow
137      - fix exchange for shear at Z-points (does not change lab_sea)
138      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
139        (to force the user to pick a time step since there is not "safe" way
140        of choosing it)
141      - add principal stress diagnostics
142      - rearrange fields for evp a little to avoid having to call a: too many
143        exchanges and b: exchanges for stress trensor components which we do
144        not have.
145      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
146        of evp, complete rewrite for lsr case (latter is does not yet work
147        in all cases)
148    o pkg/kpp: add code to have mixing in shelf ice caverns
149      - add myThid to all kpp routines (long overdue)
150    
151    checkpoint59
152    o pkg/exf:
153      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
154        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
155      - move exf header files from lower_case.h to UPPER_CASE.h ;
156        add missing cvs Header & Name
157      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
158      - add namelist param. selectStressGridPosition, exf_monFreq
159      - retire many _CLIM routines, and remove data.exf_clim
160        + params moved to data.exf
161        + climsst, climsss now handled by exf_set_gen, i.e.
162          climss?period=0 refers to constant field,
163          climss?period=-12 to monthly forcing
164      - split up namelists in data.exf
165    o pkg/seaice:
166      - remove seaice_exch and seaice_exch_uv
167      - remove superfluous exchange of theta
168      - add myThid to seaice_budget_ocean/ice
169      - add new interface for atmospheric wind forcing (C-grid only)
170        + new routine
171        + two new field (taux, tauy for stress over ice)
172        + removed one global field (DAIRN) for C-grid case only
173    o pkg/thsise
174      - 2nd set of modifs for thsice adjoint in conjunction with exf
175    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
176    
177    checkpoint58y_post
178    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
179      vertical diffusivity, similar to that in MOM4; turned on using
180      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
181      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
182    o Added capability for 3D specification of background vertical diffusion
183      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
184      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
185      "data" file that contains the 3D vertical diffusivity coefficients.
186    o ice dynamics (pkg/seaice) with thsice thermodynamics:
187      - add code within pkg thsice to advect & diffuse sea-ice fields
188      similar to (and will replace) what has been added in  seaice_advdiff.F,
189      but: - conserving Mass, Heat & Salt.
190           - better when using non-linear advection scheme (not yet fully tested)
191           - can also be used in atmospheric set-up (for now, only the diffusion).
192    
193    checkpoint58x_post
194    o IO option for global-file compact format:
195      - add options when generating topology (utils/exch2/matlab-topology-generator)
196      - add I/O capability (pkg/mdsio).
197      - adapt utils/matlab/rdmds.m to read this format.
198      for now long-line format not yet supported by pkg/mdsio (& exch2).
199    o shelfice: add a few diagnostics
200    
201    checkpoint58w_post
202    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
203      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
204      (and replace horiVertRatio in NH code).
205      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
206                         and tutorial_plume_on_slope (sensitive to truncation)
207    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
208      directly to drive seaice model (C-grid only)
209    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
210     - reintroduce computation of wind from stress,
211     - compute tau (in exf_bulkformulae.F) from windstress averaged to
212       mass points to avoid tau = 0
213     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
214    o rdmnc.m: make it work with "global" files created with gluemnc
215    o rdmnc.m : some improvements in dealing with singleton dimension
216      (tested on all testreport mnc output files).
217    o genmake2: disable pkg/profiles if netcdf test fails.
218    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
219    o move call to cal_readparms up to make calendar parameters/variable available
220      to all packages
221    
222    checkpoint58v_post
223    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
224      useDynP_inEos_Zc tested.
225    o pkg/exf: changes to properly interpolate/mask/scale initial fields
226    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
227      and portions thereof.  See read_cs.txt for description and examples.
228    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
229      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
230      following the great-circle arc between those 2 points.
231    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
232      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
233    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
234     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
235     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
236     - still needs work (not working with some options ; efficiency to improve)
237       and serious testing.
238     - use this scheme for temperature & salinity in 2 advection test exp.:
239       advect_xy & advect_xz, respectively.
240    
241    checkpoint58u_post
242    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
243    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
244    o testreport: add option "-skipdir" to skip some test.
245    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
246      momentum calculation.
247    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
248    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
249      remove checkpoint.F and the_correction_step.F (no longer used);
250      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
251    o add option (linFSConserveTr) to correct for tracer source/sink due to
252      Linear Free surface
253    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
254    o pkg/thsice: fix reading mnc-pickups
255    
256    checkpoint58t_post
257    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
258    o pkg/mdsio:
259     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
260       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
261       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
262     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
263     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
264       either MDS_READ_FIELD or MDS_WRITE_FIELD )
265     - new S/R (to replace MDSWRITEMETA), which allows to write more
266       informations (variable names, time ...) to meta files.
267     - modify rdmds.m to give back the meta file content.
268    o pkg/diagnostics: change vertical interpolation to be safer, and more
269       flexible (define p-levels to interpolate to in data.diagnostics);
270      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
271       diagnostic pointer.
272    o pkg/seaice: more cleaning up of seaice_growth, added many comments
273    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
274    o fix multi-category seaice:
275     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
276       SEAICE_MULTICATEGORY
277     - fix short wave heat flux
278    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
279       and allow to use EVP solver. Change forward lab_sea: test both EVP
280       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
281    o Initial check-in of lab_sea adjoint
282      (very similar to natl_box_adjoint/code_seaice)
283      * used C-grid and EVP solver
284      * used KPP, GM/Redi
285      * uses inAdExact=.TRUE.
286      * gradient checks fail for both ADM and TLM
287        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
288        f.d. gradients actually seem more problematic than ADM, TLM gradients;
289        issue is related to forward mismatch between g77 an ifort
290    o pkg/seaice: overhaul of thermodynamics
291     - growth.F and groatb.F are replaced by new routine seaice_growth.F
292     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
293     - move a few global fields out of SEAICE.h into seaice_growth.F and
294       make them 2D (FICE/QNETO/ ...)
295     - remove FO (it is the same as QNETO)
296     - introduce a few local fields to avoid modifying external fields such
297       as atemp, etc.
298    
299    checkpoint58s_post
300    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
301      changed exf_set_gen.F so that
302        genperiod=0 means input file is one time-constant field and
303        genperiod=-12 means input file contains 12 monthly means
304    o CG2D: use pre-computed solver main-diagonal (stored in common block);
305      this affects truncation error ; generate new output file for exp. which
306      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
307        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
308        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
309        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
310        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
311        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
312    o start implementation of deep-atmosphere and anelastic formulation
313    o verification: remove 2nd copy of input files and use script "prepare_run"
314      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
315    o mom_common/vecinv/fluxform: fix a few initialisation isssues
316    o profiles: fix for multithreaded case
317    
318    o diagnostics: rename few diags:
319      s/'PRESSURE'/'RCENTER '/g
320      s/'TICE    '/'oceFreez'/g
321      s/'TAUX    '/'oceTAUX '/g
322      s/'TAUY    '/'oceTAUY '/g
323      s/'SWFLUX  '/'oceQsw  '/g
324      s/DIFx/DFxE/g
325      s/DIFy/DFyE/g
326      and add few ocean-forcing diagnostics:
327      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
328    o modifications to pkg/seaice/growth.F and budget.F, which change results of
329      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
330      as actual snow thickness.  It now refers everywhere to effective snow
331      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
332    
333    checkpoint58r_post
334    o modifications to pkg/seaice/growth.F, which change results of
335      lab_sea experiment: fixes pertain to melting snow over open water, to
336      masking EVAP under sea ice, and to using the correct AREA variable for
337      computations of EVAP, PRECIP, HSNOW, and GHEFF
338    o add ability to read bathy, salt, and theta using MNC (off by def)
339    o add flooding algorithm and advection of HSNOW for pkg/seaice;
340      both are turned off by default and do no change any results
341    o seaice advection with pkg/thsice: a step toward the use of non-linear
342      advection scheme, but #ifdef or commented out for now (requires more EXCH).
343    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
344      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
345      in natl_box (affects results @ truncation level: update output.txt)
346    o multi-threading and IO:
347      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
348      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
349        (needed to work with SingleCpuIO): tested in all verif. exp.
350    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
351      affects the results (but none of the verification test uses this scheme).
352    o Adding some pkg/diagnostics capability to pkg/seaice
353      (will certainly be subject to changes)
354    o ctrl: adding new control variables:
355      lwflux, lwdown, evap, snowprecip, apressure, runoff
356    
357    checkpoint58q_post
358    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
359      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
360      high_res_cube configuration by 4% on Columbia.
361    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
362      add (in global_with_exf/code) a version of EXF_INTERP_READ without
363      dynamical allocation (seems to work in multi-threaded).
364    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
365      single CPU io) so that TAF does not have to see EESUPPORT.h
366    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
367    
368    checkpoint58p_post
369    o obcs: stop if obcs is used with useCDscheme = .true.
370    o shelfice:
371     - fix a sign error so that no slip at shelfice interface works
372     - remove stop for combination non-hydrostatic code and shelfice. That does
373       not mean, that the results are correct, but at least they are numerically
374       stable
375    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
376    o added adjoint exch routined for all exch*3d* routines
377      and updated flow directives
378    
379    checkpoint58o_post
380    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
381      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
382    o change controling S/R for writing pickup file (new S/R do_write_pickup)
383      and clean-up reading/writing of pickup files.
384    o fix local version of read/write pickup (NH part) in rotating_tank/code
385    o simplify EXCH interface:
386     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
387     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
388    o added the regrid package
389    o shelfice:
390     - add a simple boundary layer scheme to reduce noise
391     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
392    
393    checkpoint58n_post
394    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
395       local variable (not in common block).
396    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
397      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
398      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
399        to work with SingleCpuIO.
400    o add "_d 0" to real constant of pkg/cfc subroutines ;
401       update exp. cfc_exemple & tutorial_cfc_offline output files.
402    o multi-threading and IO:
403      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
404        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
405      - barrier before and after reading.
406      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
407      - avoid using MDS_WRITELOCAL for LAND pkg output.
408      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
409        common-block variables ; Allows multi-threading with master-thread IO.
410    o change default MAX_NO_THREADS from 32 to 4 ;
411      and stop cleanly when MAX_NO_THREADS is too small.
412    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
413    
414    checkpoint58m_post
415    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
416       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
417    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
418       keep global_ocean.90x40x15 (for AD testing) with former secondary test
419       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
420    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
421        add MITgcm_tutorials (= code + all the tutorials)
422    o ecco, option to compute cost for total ssh (mean+anom)
423    o consistent with addition of ptracer and ssh in pkg/profiles
424    o profiles: adding ptracer and ssh
425    o testreport: change multi-test output-file name
426      (from output.txt.{name} to output.{name}.txt)
427    o profiles: now ok for mutli-tiles case
428    o seaice: add 4 parameters for different advection schemes for area,
429      (effective) seaice thickness, enthalphy, and snow height. Their default
430      is the standard parameter SEAICEadvScheme
431    o calc_gw:
432     - add cosFacU in zonal viscous flux (harmonic.visc.).
433     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
434       of tutorial_plume_on_slope.
435    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
436    o calc_gw: true flux-form, account for horizontal grid spacing.
437      update rotating_tank results, but not plume_on_slope (affected at
438      truncation level, 11 digits).
439    
440    checkpoint58l_post
441    o calc_gw:
442     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
443     - remove side-drag for now (need to fix it); update plume_on_slope results.
444     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
445    o commit code to make SST/SSS weights spatially variable
446      (based on either variable in-situ or variable initial T/S weights)
447    o pkg/ecco:
448      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
449        now based on horizontally varying weights wthetaLev, wsaltLev
450      * cost_averagesflags now returns year indices in addition to day, month
451      * sflux balance is performed on annual basis
452        (sflxumm, sfluxmm2, bal_sfluxmm)
453      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
454        including separate counting and multipliers
455    o pkg/rbcs
456      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
457    
458    checkpoint58k_post
459    o testreport:
460     - always build in dir. "build" (if not there, mkdir build instead of building
461       & running in input)
462     - run in dir run (if it exists), in build otherwise.
463     - call prepare_run (if input/prepare_run exists)
464     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
465    o pkg/exf modifications to interpolation and rotation routines for more
466       reasonable treatment of North Pole singularity: for tracers North Pole
467       value is set to northernmost zonal-mean value, for zonal velocity it is
468       set to zero, and for meridional velocity it is set to northernmost value.
469    o pkg/exf/exf_check_range.F
470     - add tile index to diagnostics and move stop statement to the very
471       end of the routine.
472    o pkg/diagnostics: (diagnostics_main_init.F)
473      define title of isomorphic variables according to the current config.
474    o pkg/thsice with pkg/seaice dynamics:
475    - fix domain of computation (interior only, required for exf) and do exchanges
476    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
477    o towards a standard way of dealing with multi-threading in MONITOR
478      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
479    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
480       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
481    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
482    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
483    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
484       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
485    o tracer advection:
486     - clean-up and simplify calc_common_factors.F
487     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
488       advection subroutine (but still not used within DST advection S/R)
489    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
490    
491    checkpoint58j_post
492    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
493      from file (collects calls previously in FORWARD_STEP)
494    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
495    o adjoint store dir. adjusted accordingly
496    o genmake2
497      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
498    
499    checkpoint58i_post
500    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
501      on wind stress (SEAICEstressFactor defaults to 1.)
502    o Total number of Timers is finite (<=40): comment out 2 non-essential one
503      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
504    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
505      on CS-grid: no longer loosing mass.
506    o exf & curvilinear-grid: no longer modify longitude xC & xG.
507    o pkg/ggl90: fix sloppy output and fix a bug
508    o pkg/seaice: added SEAICEuseEVPpickup parameter
509      - Set to false in order to start EVP solver with
510        non-EVP pickup files when using SEAICEuseEVP
511      - fix sign error in diffusion in seaice_calc_rhs
512    
513    checkpoint58h_post
514    * Modifications for bottom topography control
515      o replace hFacC by _hFacC at various places
516      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
517      o add non-self-adjoint cg2d_nsa
518      o update autodiff support routines
519      o re-initialise hfac after ctrl_depth_ini
520      o works for 5x5 box, doesnt work for global_ocean.90x40x15
521    * Adding verification for 5x5 box (4-layer) bottom topography control
522    
523    checkpoint58g_post
524    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
525       used for mean seasonal cycle, mean diurnal cycle); add an example
526       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
527    o pkg/ggl90:
528      - add parameter (minimum surface kinetic energy)
529      - fix bug (avoiding division by zero)
530    o couple pkg/thsice to pkg/seaice:
531      - modify advection in seaice to accomodate new scalar fields to be advected
532      - only muliDimAdection scheme work with seaice/thsice
533      - mapping of thsice-variables to seaice-variables, back and forth
534      - does not break the verification experiments, but does not give the
535        desired results either
536    o pkg/seaice
537      - make (default) second order advection a bit less confusing?
538    
539    checkpoint58f_post
540    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
541      to pkg/seaice):
542      - new routines thsice_map_exf and thsice_get_exf provide the interface
543      - add an additional formal parameter to thsice_solve4temp
544    o pkg/exf:
545      - add new fields wspeed, snowprecip (to be able to couple to thsice)
546      - correct Stefan-Boltzmann constant
547      - new parameter for longwave surface emittance
548      - separate some stuff from exf_bulkformulae into new routines  
549        exf_radiation, exf_wind
550      - add new parameters and constants: longwave emissivity for ocean, ice
551        and snow, evaporation parameters over ice
552      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
553        either wind from stress or stress from wind
554    o pkg/thSIce:
555    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
556    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
557       and THSICE_CALC_THICKN
558    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
559    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
560      to make debugging easier.
561    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
562    o pkg/bulk_force:
563      - clean-up comments and parameters ;
564      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
565    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
566      generate new output for test-experiment: aim.5l_cs.thSI
567    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
568      testreport accordingly
569    
570    checkpoint58e_post
571    o SEAICE_CGRID adjoint done
572    o R_STAR adjoint implemented.
573      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
574      * need to sort out init. of h0facc, etc.
575    o Make pkg/profile fully independent of ecco,cost, etc. stuff
576      to be able to use it in pure forward.
577    
578    checkpoint58d_post
579    o upgrade simple test-experiment to tutorial example:
580     step.1: duplicate the experiment and (step.2) will remove the old copy.
581      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
582      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
583      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
584      tutorial_global_oce_biogeo    <- copy of dic_example
585      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
586      tutorial_plume_on_slope       <- copy of plume_on_slope
587      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
588      tutorial_global_oce_optim     <- empty for now (David ?)
589      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
590     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
591    o correct a sign problem in cost_scat.F
592    o obcs and ptracers: fix boundary conditions for advections schemes
593      with larger stencil
594    o thsice adjoint: start
595    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
596      completeness
597    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
598      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
599    o ptracers adjoint:
600      * avoid extensive recomputatations
601      * fix missing re-init. of gptr (missed by TAF)
602    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
603      me to turn off the excessive output to STDOUT that this package produces
604    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
605      and add those terms in Vector-Invariant formulation.
606    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
607      if the control period (xx_hfluxperiod etc) is 0
608    o in profiles pkg, clean routines and fix details
609    o in ecco pkg, reading ssh data:
610      fix problem in case the model does not start at iter0=0
611    o fix mnc-pickup/restart for ptracers
612    o new package prifiles:
613      code to compute profile-based cost by Gael Forget
614      (modifs in ecco, ctrl, autodiff)
615    o Benign bug fix in initialization (spotted by M. Mazloff) of
616      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
617    
618    checkpoint58c_post
619    o adjoint: finish NLFS adjoint and provide reference output in
620      verification/global_ocean.90x40x15/results_ad_nlfs
621    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
622      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
623      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
624      with SEAICE_CGRID defined.
625    o move calendarDumps from "data" to "data.cal" and clean-up the code
626      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
627    o add useEXF & useCAL flags (for now, set in hard-coded way)
628    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
629      (were missing in NH mode, and wrong in quasihydrostatic mode).
630      waiting for Chris updated version of calc_gw to add those CALLs.
631    o fix bug in quasihydrostatic S/R ;
632      add a test for this option: global_ocean.90x40x15.qshyd
633    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
634      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
635    o add on/off flag useOffLine for package OFFLINE
636    o seaice:
637      - modify advection so that it works also on the C-grid
638      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
639        problem in multi-tile runs with C-grid
640      - add flags for clipping ice velocities and/or masking solver forcing
641      - fix drag (ocean on ice) formulation and a bug that caused noise in the
642        C-grid solver
643      - added a few comments to seaice_diffusion.F
644      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
645        are now exclusive)
646      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
647        required re-ordering the code a little:
648       + make DAIRN global variable (defined in SEAICE)
649       + move computation of the viscosities eta and zeta into a new separate
650         routine (because I need to recompute them in seaice_ocean_stress.F)
651    
652    checkpoint58b_post
653    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
654      update output.txt of exp. aim.5l_cs.thSI
655    o various mnc cleanups and improvements:
656      + shrink lookup tables by factor of ~4
657      + better error reporting when running out of lookup space
658      + able to handle longer path/file names (up to 500 chars)
659    o adjoint:
660      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
661      - TBD: "hidden" mom_vecinv recomp. in dynamics
662    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
663     (allow to differentiate between forcing components using new integer flags:
664      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
665     and add new flag to put Dissipation tendency out of Adams-Bashforth.
666    o ecco
667      - enable trend removal from SSH anomaly obs.
668    o adjoint
669      - a fix for PmEpR when #undef EXACT_CONSERV
670      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
671      - try to fix "hidden" recomp. in forward_step for NLFS
672        (NLFS seems broken sometimes after I checked it in)
673    o seaice:
674     - add c-grid version of the dynamic solver:
675       + three new routines that are the c-grid substitute lsr, dynsolver
676         and ostres
677       + put a few fields that were local to dynsolver into global common
678         blocks, so that I can move the computation of stresses etc into
679         seaice_lsr (saves coding but may break the adjoint).
680     - replace more hardwired parameters by runtime parameters
681     - add ice masks that mask the rhs of the implicit solvers where there
682       is no ice (commented out in seaice_dynsolver, because i am not sure
683       if this works properly), eventually this should replace the clipping
684       of ice velocities in seaice_dynsolver to +/-40cm/s.
685    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
686      include it only where its needed
687    o move balancing of fluxes before the call of external_forcing_surf
688    o seaice:
689      - correct units of turning angles (now they are really in degrees)
690      - move computation of GWATX/Y out of main routine into dynsolver
691      - initialize GWATX/Y in seaice_init
692    o Apply mask on Fresh-Water flux (needed for SSH forcing).
693      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
694    o seaice: add runtime flags for turning angles (default to zero)
695    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
696      and trend from exf forcing and ctrl control adjustments
697    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
698      (since checkpoint57x_post)
699    o change the default rotation period to 86164.s = the Earth rotation
700    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
701      and based on a reference stratification. Tested within hs94.cs-32x32x5.
702    o seaice advection: add code for choosing between the default (2nd order
703      central differences) and multiDim advection schemes provided by
704      pkg/generic_advdiff
705    o seaice:
706      - removed all references to SEAICE_GRID.h fields from
707        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
708        (cubed-sphere configuration will change a little)
709      - grid computations in seaice_init are obsolete now.
710      - cleaned up code a little so that is easier to read (hopefully).
711      - added new (better?) discretizations of default advection and diffusion
712        (turn on with SEAICEuseFluxForm)
713      - replace 1 in 3d global fields by kSurface in growth.F
714      
715    checkpoint58a_post
716    o seaice:
717      - bug fix in advect.F
718    o shelfice:
719      - separate shelfice load anomaly from pload (breaks with time
720        dependent forcing), => introduce constant field shelficeLoadAnomaly.
721        Its default is 0., but it may be computed more cleverly from (unknown)
722        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
723        done offline. A good approximation of the pressure load anomaly is
724        necessary to avoid large initial adjustment processes underneath
725        deep-reaching shelfice.
726      - small fix in ISOMIP shelfice_thermodynamics
727      - add more sophisticated thermodynamics of Hellmer (1989), this is
728        now the default
729      - give a few constants more intuitive names
730    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
731      if bulk formulae are used in long integration (especially EmPmR). Turn
732      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
733      if balancePrintMean, the imbalance that is substracted is printed to
734      STDOUT.
735    o fix bug (typo) in obcs_apply_eta.F
736    o add a new package shelfice which enables us to model the circulation
737      underneath shelf-ice with draughts of hundreds of meters.
738     - works
739     - to do: + include improved thermodynamics
740              + check whether kSurfC (from model/inc/SURFACE.h) can be used
741                instead of new field kTopC
742              + can we use topoFile, Ro_surf and existing code in ini_depth.F
743                instead of new field R_shelfIce and new code in ini_depth.F
744                and ini_mask_etc.F?
745              + adjust vertical mixing schemes?
746    o seaice pkg:
747     - add a cpp-flag to include a simple formula for a salinity dependent
748       freezing point of sea water at the surface
749     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
750       meridional stresses are now different (and hopefully correct)
751    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
752       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
753       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
754    o pkg/diagnostics: add options and parameters for regional-statistics
755       diagnostics ; define regions by reading a region-mask from a file
756       (might add other options later)
757    o pkg/bulk_force:
758     - add option and parameters to use AIM surface-flux formulae.
759     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
760       others forcing fields (defined in PARM05, parameter file "data") are loaded
761       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
762     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
763     - use the right EXCH call for uwind,vwind (to work on CS-grid).
764     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
765       and parameters (note: calcWindStress replaces .NOT.readwindstress).
766     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
767    
768    checkpoint58
769    o add "--embed-source" option to genmake2 which, when the supporting
770      tools can be compiled (as determined by genmake2) will turn on the
771      embed_files package which then embeds the entire MITgcm source code
772      (*.[fFhc] + Makefile) used for the build within the executable
773      - requested by CNH but off by default
774      - adds a paltry <9MB to the mitgcmuv executable in most cases
775      - only writes the output when useEMBEDSRC in eedata is true
776    o clean up 3-dim. relaxation codes:
777      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
778      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
779      * Thanks to Tom Haine for testing!
780    
781    checkpoint57z_post
782    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
783      affects output (@ truncation level) of exp. plume_on_slope ; updated.
784    o fix the pickup behavior for obcs in combination with ptracers
785    o fix a bug in ptracers_external_fields_load
786    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
787      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
788    o transfered surface NH pressure to eta field (if exactConserv).
789    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
790         and update lab_sea output.txt file.
791    o completing 3-dim. relaxation code: additional term
792         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
793      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
794      * At compile time, in "EXF_OPTIONS.h" set
795          #define  ALLOW_CLIMTEMP_RELAXATION
796          #define  ALLOW_CLIMSALT_RELAXATION
797      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
798          tauThetaClimRelax3Dim = 15552000.0,
799          tauSaltClimRelax3Dim  = 15552000.0,
800      * 3 cases:
801          1) Use a constant-in-time 3-dim. field
802          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
803          3) Real-time relax. to time-evolving prescribed field
804    o Adding Laplacian-type smoothness constraint on
805      initial and boundary (forcing) controls (ic, bc)
806      * enable at compile-time via
807        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
808      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
809      * Absolute scale somewhat unclear so far
810      * no area weighting was included since no other cost term does so far
811    
812    checkpoint57y_post
813    First step for a NLFS adjoint
814    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
815    o new init. routines for calc_r_star, calc_surf_dr
816    o still need to deal with ini_masks_etc
817    o testreport seemed happy
818    checkpoint57y_pre
819    
820    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
821    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
822    o add new offset feature to offline pkg (plus minor cleanup)
823    o cfc fixes for final year of integration
824    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
825      be in GCHEM_OPTIONS).
826    
827    checkpoint57x_post
828    o fix testreport Pb in multiple test experiment.
829    o cleanup our namelist syntax in verification:
830      - make it more F95 standards compliant (some work still needed)
831      - allows the vast majority of our tests to work with gfortran
832    o Non-Hydrostatic:
833     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
834     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
835    o Allow to apply AB on T,S rather than on AB(gT,gS):
836     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
837     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
838       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
839     - need a "clever" read_pickup to restart from the other AB formulation
840    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
841    o remove some unused variables (reduces number of compiler warnings)
842    o adjoint
843      * Disable useVariableViscosity for adjoint for time being
844        (there are a number of extensive recomputations)
845      * Initialize certain variables needed for adjoint
846    
847    checkpoint57w_post
848    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
849                 fix the singleCpuIO RS version of MDSWRITEFIELD
850       and add a WARNING if using globalFiles=T with multi-processors.
851    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
852      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
853    o tracer advection scheme:
854      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
855       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
856       was not very convenient).
857      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
858       (further tests needed for the implicit DST & Flux-Limiter schemes).
859    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
860      and sRef for convenience, handy, when you want to initialize
861      ptracers in a large domain with a constant non-zero value. Also,
862      untangle ptracers_init.F a little.
863    
864    checkpoint57v_post
865    o change dome exp. to use variable viscosity in side-drag terms.
866    o remove all the files from the cfc_offline test since they are now
867      incorporated into tutorial_cfc_offline which has been producing
868      identical results for a few days of testing
869    o add new parameter: sideDragFactor to enable half-slip-side BC
870      and change side-drag S/R to use viscosity from mom_calc_visc
871      (can switch back by setting sideDragFactor=0.); affects results at
872      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
873       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
874    o vorticity & strain are now computed without masking, to account for
875      no-slip-side BC in variable viscosity calculation ; mask is applied
876      anyway later on, before computing advection/coriolis terms.
877    o modify exp4 to test new obcs support for reading from external files
878      and for passive tracers
879    o fix behavior of ptracers_monitor when monitor output is written to a
880      netcdf-file; still not independent of monitor.F (writes in the same
881      file).
882    o change default value of tRef (put a uniform, meaningful value for ocean
883      & atmos) and initialize sRef (was missing, as Martin mentioned).
884    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
885      to be proportional to enstrophy dissipation length.  Thus,
886       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
887      This is now consistent with Smagorinsky and with the manual.
888    
889    checkpoint57u_post
890    o OBCS and PTRACERS: add open boundary support for passive tracers
891      - either use homogenous (pseudo) v.Neumann conditions or prescribe
892        OB-values from file; this is not different from the way theta and salinity
893        are treated
894      - however, Orlanski-radiation conditions are not supported, and the model
895        will stop if you use pTracers and Orlanski at the same time.
896      - beefed up the rountine obcs_external_fields_load: now only those open
897        boundary values are overwritten with values from files for which there
898        are really files, otherwise the OB-fields remain untouched. This makes
899        it possible to use different OBs at different ends of the domain (as
900        with EXF)
901    o reduce number of exch calls in shap_filt (s2).
902    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
903      truncation level) 4/5 MLAdjust test results (11&12 digits match).
904    
905    checkpoint57t_post
906    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
907    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
908      same truncation, independent of the face number: affects affects several
909      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
910    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
911      note that biharmonic viscosity + no-slip was not tested in any experiment.
912    o fix bug in non-linear free-surf side-drag ; generate new output for
913      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
914    o make mnc honor the writeBinaryPrec flag for most kinds of output
915    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
916    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
917      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
918    o add brackets in multi-terms sum to get same truncation, independent of
919      the face number (manage to get exactly same value of gU,gV at the cs-edge)
920      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
921    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
922      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
923      a maximum grid-scale Reynolds number.  Also, changes all length calculations
924      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
925      Suggested values of viscosity parameters found in mom_calc_visc.
926      Many new viscosity diagnostics available.
927    
928    checkpoint57s_post
929    o Add clearing-house for viscosity calculations, mom_calc_visc and
930      correct numerous bugs in LeithD and Smagorinsky discretizations.  
931      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
932      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
933      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
934      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
935      The Strain-Tension form is now called with useStrainTensonVisc=.true.
936      ViscAhStrain and viscAhTension are now retired.
937    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
938    o In response to JMC's bug report, genmake2 now ignores any soft-links
939      that it finds in the *current* directory when searching for files.
940      Soft-links found in any other source directories will still work as
941      they did before.
942    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
943      a C routine to unlimit the stack size
944    o mnc-ify pkg/aim snapshot vars
945    o mnc-ify pkg/land as requested by Daniel
946    o various changes to mnc including:
947      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
948      - output can now be grouped so that all files within a group
949          change the ITER portion of their names in lock-step together
950      - can now read ("global") PER-FACE (in addition to PER-TILE) files
951          and works with both EXCH1 and EXCH2 (but needs more testing)
952      - writing works for all verification test cases w/ g77 on Linux
953    
954    checkpoint57r_post
955    o make MNC variable initialization happen earlier
956    o add diagnostics for (almost) each term of the momentum Eq.
957    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
958    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
959    o remove MINIMAL_TAVE_OUTPUT option ;
960      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
961    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
962      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
963    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
964    o add time-dependent SST, SSS control
965    o cost terms in ecco/ modularized (new cost_generic.F)
966    o cost_averages routines are modularized (new cost_averagesgeneric.F)
967    o new infrastructure for seaice model vs. obs misfits in seaice/
968      * driver from the_main_loop.F is seaice_cost_driver.F
969      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
970      * gradient check in Exp. 6a of natl_box_adjoint/
971    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
972      (see README file)
973    
974    checkpoint57q_post
975    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
976    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
977      - bug was reported by Jean-Michel and Ian Fenty
978    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
979      update exp. cpl_aim+ocn output.
980    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
981      Needed for high-res. runs with large global files
982      to be able to limit tapelev size
983    o Changed some tests for adjoint:
984      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
985      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
986      * global_ocean.90x40x15/ back to default 3-level checkpointing
987    o Modifications to enable scripted COMMON to MODULE conversion
988      * verification/OpenAD/code/ has necessary scripts and description;
989      * converts, compiles and runs successfully;
990    
991    checkpoint57p_post
992    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
993    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
994      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
995    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
996    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
997      (was already the case for dissipation with mom_vecinv,
998       and also the case for grad.PhiHyd when staggered-timeStep)
999      This will allow to put dissipation out-off the AB time-stepping.
1000     Unfortunately, affects truncation error. Update output of exp. that "fails"
1001      (cg2d matching number) and leave the others for later: front_relax(10),
1002      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1003      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1004    
1005    checkpoint57o_post
1006    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1007      (2) its ready to be documented during the 20050801 DocFest
1008    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1009      for ideal_2D_oce and lab_sea on linux_ia32_g77
1010    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1011      in global1x1_tot/code_seaice_adj to access indices 32, 33
1012      (worth another tag)
1013    
1014    checkpoint57n_post
1015    o adding precip control xx_precip 32
1016    o adding swflux control xx_swflux 33
1017    o Replacing 10 forcing penalty cost routines by 1 generic.
1018    o Implementing partitioning in time-mean and variable adjustment
1019      for atmos. state.
1020    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1021    o in natl_box_adjoint:
1022      * updated exp 1 to 10
1023        (but does not have time-mean vs. variable split results yet)
1024    o updated global1x1/*_seaice_adj/
1025      to incorporate latest changes
1026    o enable useSingleCpuIO for mdsio vector routines
1027      (applies in particular to tapelev I/O)
1028    o removed inefficient K-loop in all active_file*control*.F
1029    
1030    checkpoint57m_post
1031    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1032      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1033    o pkg/exch2: filling of face-corner halo regions is optional
1034      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1035    
1036    checkpoint57l_post
1037     tag before updating tutorials (pre-release-2)
1038    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1039       for output and interpolation of input fields onto model grid)
1040    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1041       Affects results of exp. rotating_tank ; update output.txt.
1042    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1043          and taking the square quantity and/or using a fraction-weight field.
1044    o fix aim_diagnostics_init.F mate numbers.
1045    o add mnc output capability to diagnostics/diagstat and update
1046      our cvsignore files for the ACSII output generated
1047    
1048    checkpoint57k_post
1049    o lab_sea now uses diagnostics package and provides a suite of
1050      new EXF diagnostics output.
1051    
1052    checkpoint57j_post
1053    o exf
1054      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1055        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1056        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1057      * extended diagnostics output
1058        - now includes all EXF variables
1059        - hs, hl moved to common block
1060        - separate S/R for diagnostics, called after ctrl vector is added
1061        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1062        - EXFqnet contains true Qnet (i.e. includes qsw)
1063      * updated verif. lab_sea, global_with_exf
1064      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1065        to ensure that diagnostics sees a true EXFqnet
1066    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1067    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1068      several times with different frequencies.
1069    o mnc-ify the thsice package as requested by Daniel Enderton
1070      - the monitor--MNC output needs work
1071      - many attributes need to be added (most are currently blank)
1072    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1073      - many attributes need to be added (most are currently blank)
1074    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1075    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1076    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1077      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1078         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1079    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1080     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1081    
1082    checkpoint57i_post
1083    o Diagnostics package was changed: diagnostic allocation is now deactivated
1084      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1085    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1086      add 1rst Order upwind vertical Shear.
1087    o add a quick fix for A/B checkpointing in OFFLINE mode
1088    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1089      end-run around the C/Fortran linking horror in eesup/src/timers.F
1090    o added pkg/runclock: allows user to terminate run based on wall clock
1091    o added non-hydrostatic scaling parameter: nh_am2
1092    o pkg/my82: futile attempt to make results compiler-independent by adding
1093      some "_d 0", etc. no effect.
1094    o for mnc output, fill the 'T' coordinate var with myTime and create a
1095      separate 'iter' variable for iteration count
1096    o pkg/diagnostics:
1097      add new capability: output of Global/Regional & per-level statistics ;
1098      tested against monitor output (including land & thSIce) on various exp.
1099    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1100    
1101    checkpoint57h_done
1102      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1103      data.diagnostics, data.gchem, data.ptracers) is done.
1104    
1105    o pkg/diagnostics: prepare for Global/Regional statistics.
1106      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1107    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1108      and rename it: DIFFERENT_MULTIPLE
1109    
1110    checkpoint57h_post
1111    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1112    o pkg/diagnostics: change output frequency, now in seconds (instead
1113      of Nb of iterations). This requires to change data.diagnostics.
1114    checkpoint57h_pre
1115    
1116    o in mnc, let the user create the output dir if both mnc_outdir_date
1117      and mnc_outdir_num are false
1118    o add fflags() to pkg/diagnostics which allows one to specify, on a
1119      per-file basis, the file precision [default behavior is unchanged]
1120    o added diagnostics to pkg/kpp, including computation of mixed layer
1121      depth based on a temperature/density criterion
1122    o updated verification/natl_box to test the new pkg/kpp diagnostics
1123    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1124    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1125    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1126      not mnc -- this mistake was found by JMC and is now corrected
1127    
1128    checkpoint57g_post
1129    o add Adams-Bashforth 3rd Order time stepping:
1130      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1131      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1132    checkpoint57g_pre
1133    
1134    o make lambda[Theta,Salt]ClimRelax spatially varying
1135      (default remains spatially uniform constant based on tau)
1136    o added new control variables
1137      * init. uVel, vVel, etanN
1138      * lambda[Theta,Salt]ClimRelax
1139    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1140      (suggested by G. Forget)
1141    
1142    checkpoint57f_post
1143    o add parameter "baseTime" = model base time = time at iteration zero
1144      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1145      account for baseTime shift
1146    o move Coriolis arrays from PARAMS.h to GRID.h
1147    checkpoint57f_pre
1148    
1149    o mnc-ifying the seaice package
1150    o introduced an alternative length scale calculation for use in the limiting
1151      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1152    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1153    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1154      as well as grad(vort3).  Made it compatible with both approximate form
1155      for the cubed sphere and full form of these gradients.  Added flag
1156      useFullLeith to select between approximate and full form.  
1157    o add "d0" in getcon.F to reduce differences between compilers/platforms
1158      update output.txt of exp. fizhi-gridalt-hs
1159    o change port_rand funtion to allow to set the seed.
1160    o fix obscure MNC bug involving conversion between reals and integers
1161      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1162        new version is now more standards-compliant
1163    o adjoint-related modifications
1164      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1165      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1166      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1167    
1168    checkpoint57e_post
1169    o Adding eddy stress controls a la Ferreira et al.
1170    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1171    
1172    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1173      update output.txt of exp. fizhi-gridalt-hs
1174    o add more "Z" dimensions and associated coordinate vars to MNC
1175    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1176    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1177      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1178      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1179      months and years.  Requires pkg/cal.
1180    o diagnostics: add pickup functionality
1181      - off by default for backwards compatibility
1182      - current version only uses MDSIO -- MNC will be added
1183    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1184    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1185    
1186    checkpoint57d_post
1187    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1188    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1189      output from the diagnostics package
1190    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1191    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1192      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1193    o add coordinate variables to the MNC output from the diagnostics package
1194    o change MNC-flags default value: true when useMNC=TRUE
1195    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1196      the ability (off by default) to read the grid information using MNC
1197    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1198    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1199    o do snap-shot diagnostics at the middle of the time-interval (instead of
1200      at the end).
1201    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1202      new test for AIM with thSIce + slab-ocean
1203    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1204    o move state variable diagnostics to the beginning of the time step ;
1205      (note: still needs some work specially for snap-shot diagnostics)
1206      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1207    
1208    checkpoint57c_post
1209    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1210    o generate new output.txt files on faulks with g77 & the new -ieee option
1211    checkpoint57c_pre
1212    
1213    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1214      update output.txt of exp. global_ocean.90x40x15
1215    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1216      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1217    o add saltFlux(+File) forcing capability with periodicExternalForcing
1218    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1219    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1220    o improvements for the MNC output from DIAGNOSTICS:
1221      - correct handling of the unlimitied dimension
1222      - all dims now have associated coordinate variables
1223      - variables located at U, V, and Corner ("Z") points are now written
1224        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1225        *all* data points are output
1226    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1227    o added pkg/seaice/seaice_monitor.F
1228    o mdsio_readfield.F can now read files visible only to master MPI process.
1229    o pkg/seaice: some test code for ice-modified ocean stress
1230    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1231      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1232      spurious negative numbers for precipitation and humidity.  Will cause
1233      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1234    o pkg/ctrl/
1235      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1236        May be enabled via doPackDiag
1237      *  introduce z-scaling of
1238         + gradient (doZscalePack) and
1239         + control (doZscaleUnpack)
1240    o pkg/mdsio/
1241      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1242      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1243    
1244    checkpoint57b_post
1245    o simplify options in diagnostics_fill arguments (remove weird combinations)
1246    o fix MNC coordinate variables so that they now contain per-face index
1247      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1248      general, EXCH2 grids are only aligned to a "local" coordinate system
1249    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1250    o Implement instantaneous output within pkg diagnostics:
1251      setting a negative frequency in data.diagnostics produces
1252     "snap-shot" output (as opposed to time-average if freq > 0)
1253    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1254      NOTE: change ptracer diagnostics name: use 2 characters to work with
1255            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1256    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1257      becomes the coordinate variable for the 'T' dimension
1258    o add CF-style coordinate variables to MNC
1259      - just a first cut:  numbers are meaningless on the cubesphere and
1260        missing along the T axis but otherwise it works!
1261    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1262    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1263    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1264      this is based directly on what the model compute, so that the content of
1265      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1266    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1267    o clean up build options files for SunOS, in particular
1268      - remove -traditional from xmakedepend
1269      - change -xarch=v9 to -xarch=native for f77
1270      - restore use of make (not gmake)
1271      - add CC=gcc if using g77
1272    o changes per discussion of AM, JMC, & EH3 today:
1273      - move redundant "grid" variables out of "state" -- in preparation of
1274        creating proper CF-style coordinate variables and in recognition
1275        that any/all grid variables can be easily copied (eg. w/NCO) from
1276        the grid files into any of the other NetCDF files
1277      - *always* output grid variables with MDSIO (this will eventually be
1278        changed)
1279      - output MNC grid file if useMNC is true
1280    o every instance of _END_MASTER() has been found and replaced with
1281      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1282      preprocessors
1283    o re-arrange diagnostics pkg initialisation:
1284     - allow each package to extend the available diagnostics list
1285     - add some checking and fix small problems (multi-threaded, ...)
1286     - new S/R diagnostics_fill (replace fill_diagnostics):
1287       look through the short list of active diag. (instead of the long list)
1288       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1289    
1290    checkpoint57a_post
1291    o this set of changes restores TAMC compatibility
1292      tested for global_ocean.90x40x15 adjoint on trough
1293      (what a pain)
1294    
1295    checkpoint57a_pre
1296    o some modifs in tools/build_options for sunos
1297    o call ctrl_pack for ctrl at end for optimcycle=0
1298    
1299    checkpoint57
1300    o add horizontal bi-harmonic viscosity for vertical velocity
1301      - new parameter viscA4W (defaults to viscA4)
1302      - affects only non-hydrostatic code
1303      - to be done: no-slip lateral boundary conditions
1304    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1305    o implement Implicit Vertical advection for pTracers
1306    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1307      (implemented also for implicit vertical diffusion & advection)
1308    o OBCS: extend application of tracer open boundary conditions
1309      to a strip beyond the boundary of width Olx/Oly
1310    o add call monitor to TAF set of required calls (flow directives)
1311      and include in natl_box_adjoint
1312    o untangle a few ifdefs related to cost, ctrl, autodiff
1313      untangel a few ALLOW_ECCO_OPTIMIZATION
1314    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1315      (theta2, salt2 in ecco_cost_weights)
1316    
1317    checkpoint56c_post
1318    o OBCS as control variables
1319      - update ctrl_ad_diff.list, obcs_ad_diff.list
1320      - remove balance of obcs controls from default
1321      - fix index bug nobcs in ctrl_init
1322      - fix dummy fields filen in ctrl_pack
1323      - add dummy weights for obcs
1324    o lsopt: comment out fort.94 output
1325    o optim:
1326      - remove unnecessary header files
1327      - adjusted namelists
1328      - add xerbla.F to Makefile
1329    o exf:
1330      - multiple modifications of exf_check_range
1331      - unit change in exf_init_runoff from [m/year] to [m/s]
1332    o mdsio:
1333      - i/o-vector change debugLevel from debLevA to debLevB
1334    
1335    checkpoint56b_post
1336    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1337      is called from DO_THE_MODEL_IO
1338      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1339      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1340      - clean up PTRACERS_WRITE_TIMEAVE a little
1341    o add another verification experiment that tests both the cfc-pkg and
1342      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1343      reactive tendencies treated inline with regular timestepping
1344    o testreport previously did a lousy job of comparing small numbers, so
1345      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1346      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1347      testreport.
1348    o ptracers_monitor: bug fix for MPI
1349    
1350    checkpoint56a_post
1351    o GCHEM: finish reorganizating the package
1352      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1353        (introduces another 3D-array for each passive tracer, but only if
1354        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1355        gchemTendency is not needed because the timestep is done separately)
1356      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1357      - GCHEM is now---more or less cleanly---separate from PTRACERS
1358      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1359        so clear to me how that should be done in a general way.
1360    o CFC: improve formatting of output in CFC_ATMOS
1361    o PTRACERS:
1362      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1363        that ALL experiments with ptracers enable can be checked. This makes
1364        GCHEM_MONITOR obsolete.
1365      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1366        monitorFreq
1367      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1368    o add PTRACERS (PTR0[1-5]) to testreport output
1369    o exf_check_range:
1370      * default changed to .TRUE.
1371      * will check values for niter0 if debLevA, every timestep if debLevB
1372      * STOP in exf_check_range if 'out of range'
1373      * range chosen generous to allow for potential extema
1374      TBD: a version with stricter range
1375           permitted range would be runtime parameters
1376    o GMredi:
1377      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1378      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1379      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1380    o GCHEM:
1381      - move call to GCHEM_FORCING_SEP, so that it is now called before
1382        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1383      - introduced a useGCHEM runtime flag and applied it everywhere.
1384      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1385        this flag is now only visible within GCHEM-pkg routines.
1386      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1387        be replaced by a 3D array that is computed before thermodynamics; for
1388        this, the tracer ID iTracer had to be included into the parameter list
1389        of ptracers_forcing
1390      - set up forward_step to call gchem_forcing, that will replace
1391        gchem_forcing_int in ptracers_forcing
1392      - cleaning up
1393    o small cleaning of exch2: remove files that are also in eesupp/src
1394    
1395    checkpoint56
1396    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1397    o mnc: cleanup "full" files--fixes out-of-memory problem
1398    o ECCO-GODAE
1399      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1400      * fully merged and updated from SIO code
1401        windstress sign change affects
1402        - exf_inscal_[u/v]stress
1403        - sign of xx_tau[u/v] adjustments
1404        - signs in cost_scat
1405      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1406      * natl_box_adjoint updated and compressed
1407      * 2-level checkpoint switch added
1408        (tested in EXP. 1 of natl_box_adjoint)
1409      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1410    o SVD
1411      * first complete, non-hacked version for SVD calculations
1412      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1413        performed via direct access files admtlm_vector.it????
1414        (via ctrl_[un]pack)
1415      * optimcycle is used for ARPACK iteration counter
1416        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1417      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1418        and add linear transforms where necessary
1419      * controls are initial/final SST, SSS (can be extended; need to check
1420        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1421    o mdsio: filename info to both stderr, stdout
1422    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1423      from sign change
1424    
1425    checkpoint55j_post
1426    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1427      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1428    o add consistent build directories and .cvsignore files to verification
1429    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1430    o make all subroutines 30 or less characters in length for certain older
1431      compilers to work (a thorough search only turns up two routines in
1432      pkg/ptracers)
1433    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1434      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1435    
1436    checkpoint55i_post
1437    o change arrays for total vertical diffusivity (2.D if explicit,
1438      3.D if implicit) ; each ptracer uses its own background value.
1439    o added mnc/NetCDF output capability to ocn_compon_interf
1440      - added bits to verification/cpl_aim+ocn so that it can run on
1441        ITRDA and other clusters without the mpirun "-wd" option
1442    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1443      configuration
1444    o give MNC the ability to create additional files rather than
1445      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1446      - the default is just less than 2GB which is a practical limit
1447        on many systems
1448    o Compute the non-local term using either KPP vertical diffusivity (=default)
1449       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1450    
1451    checkpoint55h_post
1452    o add verification test "vermix"
1453    o remove all the *_ioinc flags and replace with the single global
1454      outputTypesInclusive flag
1455    o allow to set a vertical profile of vertical diffusivity for T & S
1456    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1457    o useMNC moved from data.mnc to data.pkg
1458    
1459    checkpoint55g_post
1460    o Renaming carbon AD experiments to comply with testreport conventions
1461    o Updating adjoint of Held-Suarez hs94.1x64x5
1462    o Fixing directives for non-ECCO forward_step, after ECCO directives
1463      have been fixed to avoid recomp. of do_oceanic_phys
1464      Works well for global_ocean.90x40x15,
1465      but recomp. issue remains for carbon
1466    o Updating adjoint output for natl_box_adjoint after
1467      pkg/ecco has been modified (see taga c55d_post)
1468    
1469    checkpoint55f_post
1470    o rename to timeave_init_fixed
1471    
1472    checkpoint55e_post
1473    o some delicate re-shuffle of store directives to avoid one
1474      extra call of do_oceanic_physics
1475      affects ecco_the_main_loop.F, do_oceanic_physics.F
1476      checkpoint_lev1_directives.h
1477    o NB: this may break global_ocean adjoint temporarily,
1478      but it is clear how to fix it. Will do later, need this now.
1479    
1480    checkpoint55d_post
1481    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1482    o ecco_cost_weights is modified to 1x1 runs
1483    o modifs to allow observations to be read in as
1484      single file or yearly files
1485    o enable to read exf forcing fields as either
1486      single file or yearly files (flag useExfYearlyFields)
1487    checkpoint55d_pre
1488    
1489    o switch between 2-level and 3-level checkpointing
1490    o add ability of MNC to write local and "partial" (eg. 2D slices where
1491      the full 3D field is never actually stored) arrays to NetCDF files
1492      with the correct (that is, the complete multi-dimensional) set of
1493      array indicies
1494      - used in mom_vecinv() to write the diagFreq output
1495      - tested (demonstrated) in verification/aim.5l_cs
1496    o further mnc-ification
1497      - add verification/lab_sea to the list with mnc setups
1498      - fix undefined mnc v-names in cd_code
1499      - add kpp to mnc output (both snapshot and timeave)
1500    o non-hydrostatic code
1501      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1502        in calc_gw.F
1503      - defaults to viscAh
1504      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1505        friction or Leith) in non-hydrostatic mode, as long as there is
1506        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1507    o pkg/cost
1508      extend simple cost functions to treat time mean quantities
1509      (T,U,V) via cost_accumulate_state from cost_tile
1510    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1511        be 2 times larger than the minimum size the advection scheme requires.
1512        now get a perfect conservation of salt in advect_cs test-exp (updated)
1513    o GGL90 (Gaspar's TKE mixed layer)
1514      - add horizontal diffusion of TKE, requires exchanges in
1515        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1516        default. In OPA there is no horizontal diffusion of TKE but the
1517        mixing coefficients are computed from a horizontal average of TKE of
1518        6 points or so. I think that diffusion has a little more physical
1519        justification.
1520      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1521        was in vain)
1522      - mask tke-variable in ggl90_init
1523    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1524    o fix biharmonic diffusion on CS-grid.
1525    o more obcs stuff
1526      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1527        for reading boundary values. This routine is called from
1528        obcs_prescribe_read
1529      - updated obcs_check
1530      - changed sponge layer relaxation parameter units for days to seconds
1531      - turned off sponge layer by default
1532      - changed argument list of OBCS_CALC to myTime+deltaTclock
1533      - fixed about 35 bugs in obcs_external_fields_load
1534    
1535    checkpoint55c_post
1536    o obcs stuff
1537      - new runtime flags useOBCSprescribe, useOBCSbalance
1538      - re-arranged obcs_calc
1539      - moved exf_getobcs to obcs_prescibe_read
1540        obcs_prescibe_read is called after ORLANSKI stuff
1541        and independent of it (executable can contain all).
1542      - updated obcs_check
1543      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1544        These may be necessary only if tangential velocities are
1545        prescribed at OB, not sure, needs testing.
1546    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1547      which simplifies the calls and passes the ifc check-bounds test
1548    
1549    checkpoint55b_post
1550    o add a 2D scalar, Z location, exchange_2 routine.
1551    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1552      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1553      affects advect_cs results (for the wrong reason): update output.txt
1554    o use a more standard discretization for biharmonic viscosity ;
1555     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1556      affects results of dome set-up: update output.txt
1557    o fix gad_advection.F (CubedSphere part), back to version 1.23
1558    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1559    
1560    checkpoint55a_post
1561    o merged code to
1562      * prescribe/read time-dependent open boundaries
1563        (works in conjunction with exf, cal)
1564      * sponge layer code for open boundaries
1565      * each boundary N/S/E/W now has its own CPP option
1566        (healthy for the adjoint)
1567    
1568    checkpoint55
1569    o up-to-date adjoint of previous breaks
1570      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1571      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1572      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1573      - carbon: * remove tr1-related adjoint verification
1574                * add ptracer as control variable
1575    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1576      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1577    
1578    checkpoint54f_post
1579    o in verification/carbin/ remove experiment related to
1580      ALLOW_PASSIVE_TRACER (array tr1 etc)
1581      code_ad/ input_ad/ results_ad
1582    
1583    o add two new packages
1584      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1585        + subject to optimization (memory)
1586      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1587        + subject to reordering (many GOTOs in the original code)
1588        + so far opps is called for every (i,j) point, and then operates in
1589          the vertical; one may want to reorder the scheme in order operate in
1590          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1591          fields)
1592    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1593      - all verification tests compile and run with linux_ia32_g77
1594      - defaults are compatible with current input files--nothing
1595        should change if you were not previously using MNC
1596      - MNC output has been added in numerous places (eg. timeave)
1597        but there are still a few writes not yet do-able with MNC
1598        (this is in progress)
1599      - flags now allow for either/or/both use of MDSIO and MNC and
1600        documentation will soon follow
1601      - numerous small formatting cleanups for ProTeX
1602    o add version info (via BUILD_INFO.h) to MNC and stdout
1603    
1604    checkpoint54e_post
1605    o add two new packages
1606      - pp81 (Packanowski and Philander, 1981), Richardson number and
1607        stratification dependent mixing
1608      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1609      - these scheme operate in a similar manner as KPP (without ghat, of
1610        course), however there is only one diffusivity that is used for both
1611        temperature and salinity (and passive tracers)ç
1612    o add offline package
1613    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1614      provided by Stephanie Dutkiewicz
1615    o genmake2: add ability to search for C compilers and cleanup test output
1616      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1617    
1618    checkpoint54d_post
1619    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1620    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1621      leading to additional shift by 5 days each year of integration
1622       (i.e. leading to considerable offset over the years)
1623    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1624    o start with no AB and no initial filtering (staggerTimeStep):
1625      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1626    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1627      (external loading & cpl import/export stay in forward_step.F)
1628    o update coupling interface to work with new staggerTimeStep
1629    o change MDSIO ptracers_pickup.
1630    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1631    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1632    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1633    
1634    checkpoint54c_post
1635    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1636      this affects (truncation error) output.txt of test-exp:
1637       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1638    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1639    o change Qnet to always be the net heat flux, (+upward).
1640      affects (truncation error) output of natl_box exp.: updated
1641    o define the max number of passive tracers in PTRACERS_SIZE.h
1642    o start to test mnc routinely in exp0
1643    o add sea-ice loading (sIceLoad) as a new forcing field.
1644    
1645    checkpoint54b_post
1646    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1647       impressive on Altix and Opteron systems)
1648    o diagnostics can now write NetCDF files through the mnc package
1649    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1650    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1651    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1652      affects (truncation error) output of lab_sea & natl_box exp.: updated
1653    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1654    
1655    checkpoint54a_post
1656    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1657    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1658    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1659    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1660      + internal_wave (shift in writing cg2d_ini_res)
1661    checkpoint54a_pre
1662    
1663    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1664      - modified verification/lab_sea and natl_box_adjoint accordingly
1665    
1666    checkpoint54
1667    checkpoint53g_post
1668    o prepare splitting of thermodynamics: store convect.counter in common block
1669    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1670      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1671    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1672    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1673    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1674    o restore adjointability
1675    
1676    checkpoint53f_post
1677    o modifications that affect AIM experiment results (update output.txt):
1678      - no advection of S at top interface Nr (pkg/generic_advdiff)
1679      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1680    o AIM pkg:
1681      - include stability function into surf.Flux derivative relative to Tsurf
1682      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1683    
1684    checkpoint53e_post
1685    o merged cylindrical coord configuration
1686    o added rotating_tank experiment
1687    checkpoint53e_pre
1688    
1689    checkpoint53d_post
1690    o faulks upgraded: re-generate output.txt that have changed:
1691       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1692    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1693    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1694    o added Sadourny discretization of Coriolis
1695      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1696      - re-enabled use of omega3 (useAbsVorticity)
1697    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1698      vector-invariant equations
1699      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1700    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1701      hopefully without new bugs
1702      - still to do: biharmonic friction for non-hydrostatic w
1703    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1704    o regenerated output for global_ocean_ebm (using -ieee)
1705    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1706      of mom_common/
1707      - simple re-arrangement of instructions within computing loop
1708    checkpoint53d_pre
1709    
1710    checkpoint53c_post
1711    o new version of coupler for AIM+thSIce and Ocean models
1712     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1713     - land: change Evaporation of snow
1714     - aim with thSIce: fix bug in snow-precip.
1715    o changes to calc_gw.F
1716     - bug fix for w^2 term near the bottom boundary
1717     - (hopefully) improve the lateral slip boundary condtions for use with
1718        partial/looped cells
1719      - because the bug fix changes two verification experiments anyway (exp5
1720        and plume on slope), change the lateral boundary condition from half slip
1721        to the value of no_slip_sides
1722    o ebm package wasnt quite up to the parallel task. Fixed that.
1723    o Adjoint of EBM package + verification
1724      * TLM OK
1725      * ADM not sufficient accuracy yet (needs further testing)
1726    
1727    checkpoint53b_post
1728    o Commiting new energy balance model to repository
1729      * package is pkg/ebm
1730      * verif. is verification/global_ocean_ebm
1731      * references are in ebm_driver.F
1732    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1733    C        Global thermohaline circulation. Part I:
1734    C        Sensitivity to atmospheric moisture transport.
1735    C        J. Climate 12(1), 71-82
1736    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1737    C        Global thermohaline circulation. Part II:
1738    C        Sensitivity with interactive transport.
1739    C        J. Climate 12(1), 83-91
1740    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1741    C        Destabilization of the thermohaline circulation
1742    C        by atmospheric eddy transports.
1743    C        J. Climate 7(12), 1870-1882
1744    o Will need long integration testing.
1745    checkpoint53b_pre
1746    
1747    o created pkg/mom_common in preparation for variable viscosity code
1748    o renamed and split ini_mnc_io
1749    o pkg/land: only liquid water can diffuse or run-off
1750    o AIM using land: soil wetness availability account for snow
1751    o added printMapIncludesZeros to EEPARMS namelist
1752    
1753    checkpoint53a_post
1754    o restore TAMC compatiility for exf_constants.h
1755      (no usage of _d in .h)
1756    o Additional storing in KPP in an attempt to fix
1757      TAMC problem with adjoint of KPP code.
1758      (no success...)
1759      Identical code works fine with TAF.
1760    o Fixed verification/natl_box_adjoint experiments.
1761      Initial conditions for Experiments 4 and 5 are now
1762      set to "SEAICE_initialHEFF=0", which is more reasonable,
1763      and hence gives results closer to that of Experiment 2.
1764      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1765    
1766    checkpoint53
1767    o stable checkpoint with up to date adjoint
1768      TLM tests only run for 1st grdchk at the moment. Its unclear if
1769      this is a code problem or a problem with resetting code for g_
1770      variables that is being autogenerated wrong.
1771      Otherwise:
1772       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1773       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1774         are both still in chaos following their security messes.
1775    
1776    checkpoint52n_post
1777    o various build (mostly genmake2) changes including:
1778      - ability to build/run more easily within Cygwin and MacOS X
1779      - more complicated Makefiles with a stronger dependence on Gnu Make
1780    o pkg/seaice modifications
1781      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1782        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1783        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1784      - changed proxy for geostrophic velocity and updated
1785        verification/lab_sea/results/* accordingly
1786      - removed ADI dynamic solver from pkg/seaice
1787      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1788        they caused a segmentation fault under certain circumstances
1789      - removed unused field WATR
1790    o bug fix in exf-package:
1791      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1792         now reflect that.
1793    o small fixes in the cal-package:
1794      - set reference date to first of January for the 'model'-calendar
1795      - failing of cal_CheckDate in cal_FullDate now actually results in a
1796        warning
1797    o small modifications in exf-package to increase flexibility:
1798      - change climtempfreeze from a constant to a runtime parameter that
1799        is specified in data.exf_clim (default = -1.9)
1800      - introduce runtime parameter windstressmax (default = 2.0) that is
1801        specified in data.exf
1802    o fix in pkg/thsice:
1803      - update Evap (Tsf changes) to be consistent with Latent heat flux
1804      - maintain snow precipitation unchanged (even if Tsf >=0).
1805     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1806    
1807    checkpoint52m_post
1808    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1809      this does not change any of the results, because myIter=0 in swfrac always
1810      lead to jwtype=2 (the default anyway), but the call makes little sense
1811      as a default
1812    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1813    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1814      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1815    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1816    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1817    o extending useSingleCpuIO option to work with new exch2 I/O format
1818      - old-style, missing-tile I/O is still accessible by defining CPP
1819        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1820    o monitor package can write to NetCDF files and/or STDOUT
1821    o fix re-definition bug in MNC_GRID_INIT_ALL()
1822    o doc/api_reference added
1823      - a framework for building an API Reference Manual using all
1824        the "protex" comments embedded in the code
1825      - see pkg/generic_advdiff, pkg/mnc for examples
1826    o MNC:
1827      - make myThid the last argument for all subroutines
1828      - new default for the grid files: NO halos
1829      - add useMNC and other run-time flags
1830      - separate per-file-group handling of the unlimited dimension
1831      - early initialization of MNC w/ flags read at the eeboot stage
1832        and lookup tables set in initialize_fixed
1833      - write all MNC output to a freshly-created directory
1834    o thermodynamics sea-ice (thsice) is now tested with testreport.
1835    o test exp. advect_cs: use the standard cs32 grid ; update output.
1836    o Added functionality to grdchk:
1837      pick global i,j,k position (or nearest wet) where to perform check.
1838    
1839    checkpoint52l_post
1840    o new land formulation:
1841      a) use ground enthalpy as prognostic variable to ensure exact
1842         energy conservation.
1843      b) account for water temperature and for latent heat of freezing
1844         in all processes (rain, run-off, ground storage)
1845      c) compute surface and ground temperature implicitly.
1846    o aim_v23 modification for new land model:
1847      a) Treat separately land / ocean / sea-ice surface fluxes
1848         to allow implicit computation of land & sea-ice surface temp.
1849      b) add snow precipitation.
1850    checkpoint52l_pre
1851    
1852    o fix problem (when 1 tile is empty) in min/max monitor.
1853    o fix bug in timeAve (u,vZetatave in common block)
1854    o no restoring terms under ice for pkg/seaice
1855    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1856    o bug fix for pkg/seaice pickups
1857    o change MNC call locations and add coordinate attributes
1858    o mask vorticity at the corner ; affects global_ocean.cs output
1859    o fix ini_curvilinear_grid ; test CS experiments with mpi
1860    o aim.5l_cs: modify sea-ice fraction input file ; update output
1861    o exf: Adding simple range check routine for exf fields after read
1862    
1863    checkpoint52k_post
1864    o removed top-level directory "diags"
1865      - we migrated these functions to pkg/timeave a long time ago
1866    o fixed bug introduced in pkg/monitor
1867    o accuracy ctrlprec = 32 insuffient for gradient checks using
1868      averaged fields (I/O via cost_averages)
1869      -> use ctrl.h in active_file*.F to control I/O precision.
1870    o paramter list of CALL ADTHE_MAIN_LOOP
1871    o added initial do_the_model_io to ecco
1872    o set all ...Freq to zero after cost_final
1873      taveFreq, dumpFreq, pChkptFreq
1874    o MAIN and ECCO differentiability restored
1875    
1876    checkpoint52j_post
1877    o fix nchklev in tamc.h for global_ocean...
1878    o Bringing flow and store directives up-to-date
1879    o Really weird thing!
1880      call do_the_model_io from the_main_loop with parameters
1881      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1882      TAF places a faulty re-call of initialise_varia
1883      after cost_final call which should not be there!
1884    checkpoint52j_pre
1885    
1886    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1887      error messages
1888    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1889    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1890      debug output
1891    o modfied mdsio_writefield.F to handle non-global files under exch2
1892    o update AIM Cubed-Sphere exp (aim.5l_cs):
1893      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1894    o update AIM Equatorial Channel exp:
1895      use standard aim_v23 pkg and change the SST fields to be more realistic.
1896    o globalFile now works with exch2
1897    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1898      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1899    o limit timeave output for hi-res integrations
1900    
1901    checkpoint52i_post
1902    o removed CPP_EEOPTIONS.h from verification/*/code
1903    o updated the tiling for global_ocean_pressure
1904    checkpoint52i_pre
1905    
1906    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1907      the old pkg/aim).
1908    
1909    checkpoint52h_pre
1910    o shortened offending lines in exch2_send_rx?.template
1911    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1912    o genmake2: add build & execute test for NetCDF code
1913    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1914      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1915    o added useSingleCPUIO flag to monitor.F and mon_out.F
1916    o added temporary hack for sea-ice dynamics on the cube:
1917      metric terms are ignored and it is assumed that
1918      there is no sea-ice on cube faces 1, 2, 4, and 5.
1919    
1920    checkpoint52f_post
1921    o added exch2 cube routines to pkg/exch2
1922    o modified hs94.cs-32x32x5 to use it
1923    o added new grid files to hs94.cs-32x32x5
1924    checkpoint52f_pre
1925    
1926    checkpoint52e_post
1927    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1928      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1929    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1930      to work with implicit vertical advection and AB ;
1931    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1932    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1933     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1934    checkpoint52e_pre
1935    
1936    o fix bug in impldiff when Nr=1 or Nr=2.
1937    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1938    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1939    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1940      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1941    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1942    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1943    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1944    
1945    checkpoint52d_post
1946    o re-tiled many expts to allow comparison in multi-processor mode
1947      - updated output accordingly
1948      - changed hs94.128x64x5 to use intial T from file rather than use the
1949        random number generator
1950    o add infrastructure in model routines for fizhi and gridalt packages
1951    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1952    o changes to permit hi-res, cubed-sphere, configuration
1953      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1954      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1955      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1956        of surface winds for the cube
1957      (A verification experiment, based on global_ocean.cs32x15, but with
1958       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1959       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1960       complete with example surface forcing files and matlab scripts to look
1961       at the output and compare it with that of global_ocean.cs32x15.)
1962    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1963       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1964       to conform to the common rule.
1965    o check-in the first version of the coupler + interfaces for multi-components
1966       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1967       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1968       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1969       - ocean and atmos. share the same horizontal grid (no interpolation).
1970       - exchanges between component and coupler is done in forward_step
1971    o new verification experiment, cpl_aim+ocn:
1972       coupled ocean - AIM atmosphere on cs32 grid.
1973    
1974    checkpoint52d_pre
1975    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1976    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1977    
1978    checkpoint52c_post
1979    o Fixing OPTIONS files for use of exf:
1980      - ALLOW_ECCO not needed
1981      - ECCO_CPPOPTIONS.h should not be included from
1982        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1983        as has been the case in the past
1984      - All cal/exf related options are currently set in
1985        single header file. Should remain so until we
1986        agree on a consistent new policy.
1987    o Removed all CPP options for cal package.
1988      cal has no more CPP options.
1989    o modified STOREs in GAD_ADVECTION
1990    o corrected key comp. for passkey
1991    
1992    checkpoint52b_post
1993    o new version: "thsice" of thermodynamic sea-ice pkg:
1994     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1995     - modify fluxes but do not change theta directly;
1996     - light cleaning of bulk_force pkg (still needed with thsice).
1997     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1998       + output_thsice.txt to test thsice & bulk_force pkgs.
1999    o put back grid & coriolis monitor output.
2000    checkpoint52b_pre
2001    
2002    o call "do_the_model_io" at the beginning (=> dump initial state)
2003    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2004    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2005      (need info on NUMBER_OF_PTRACERS)
2006    o missing PTRACERS headers in some routines
2007    o default tamc.h in pkg/autodiff supposed to crash
2008      to ensure proper customization
2009    
2010    checkpoint52a_post
2011    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2012      - moved surfaceTendencyTice from pkg/seaice to main code
2013      - subroutine FREEZE_SURFACE now limits only surface temperature
2014        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2015        => new output.txt for global_ocean.cs32x15 & global_with_exf
2016      - keep the old version of FREEZE for backward compatibility;
2017        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2018      - corresponding modifs for TAF directives
2019    o added surface flux output variables to TIMEAVE_STATVARS
2020    o time-averaged output for pkg/ptracers
2021    o fix problem with ECCO-related divided adjoint
2022      snapshot file was missing some ad-variables,
2023      but no warning issued by TAF
2024    
2025    checkpoint52a_pre
2026    o some bug fixes for #undef REAL4_IS_SLOW
2027    
2028    checkpoint52 = ecco_c52_e35
2029    o after testing adjoints of checkpoint51u_post
2030    
2031    checkpoint51u_post
2032    o this is the post-merge tag of the ecco-branch
2033      (needs another clean checkout and re-testing)
2034    o various natl_box_adjoint configs and results
2035      but no input fields
2036    o obcs adjoint not yet merged!
2037    o adding ECCO global 1x1 and 2x2 degree configs
2038    o updated/extended some store directives for seaice
2039    o pkg/ecco now containes ecco-specific part of cost function
2040    o top level routines the_main_loop, forward_step
2041      supersede those in model/src/
2042      previous input data.cost now in data.ecco
2043      (new namelist ecco_cost_nml)
2044    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2045    
2046    checkpoint51t_post
2047    o this is the pre-merge tag of the ecco-branch
2048    
2049    checkpoint51s_post
2050    o cleanup: removed various obsolete #define-s
2051    o pkg/grdchk
2052      - renamed 'ph-grd 3' to 'grad-res'
2053      - merged from ecco-branch
2054        (remaining bug fixes for obcs gradient checks)
2055      - additional high-precision output for testreport
2056        (grep for 'precision_grdchk_result')
2057    
2058    checkpoint51r_post
2059    o cleaned up or removed CPP_OPTIONS.h files
2060    o updated results for some of the tests to reflect the new
2061      optfiles (-ieee: -O0 instead of -O3)
2062    
2063    checkpoint51q_post
2064    o cd_code:
2065      - moved cd_scheme.F -> cd_code_scheme.F
2066      - separate read_checkpoint from cd_code_ini_vars.F
2067      - separated cd_code part from write_checkpoint
2068      - updated AD_SOURCE, generated .flow
2069      - added CD_CODE_VARS.h to the_main_loop
2070      - Moving cd_code specific store dir.s to pkg/cd_code
2071    o ctrl package totally restructured
2072      - pack/unpack now optional and decoupled from
2073        xx_/adxx_ I/O
2074      - ctrl_pack/unpack cleaned
2075        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2076      - confined inclusion of AD_CONFIG.h to where necessary.
2077    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2078    
2079    checkpoint51p_post
2080    o create initial cd_code package
2081      - WARNING: the initialization of fields within packages
2082        is broken because INI_FIELDS (where READ_CHECKPOINT is
2083        called) is called *before* PACKAGES_INIT_VARIABLES.
2084        This seems to be backwards since
2085        1) its important to initially zero the entire field including
2086           the "halo" region
2087        2) zeroing needs to be done *before* reading pickup info
2088           and the pickup call might or might not happen in any
2089           particular run
2090      - this needs an overhaul for R2
2091    o cleanup verification/*/code/GMREDI_OPTIONS.h
2092    o cleanup testreport
2093    
2094    checkpoint51o_post
2095    o bringing AD-related verif's up to date with genmake2
2096      - carbon/
2097      - global_ocean.90x40x15/
2098      - hs.94.1x64x5/
2099      - (front_relax/ )
2100    o (more) consistent directory structure for AD-related verif.'s
2101    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2102    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2103    o bug fix in find_alpha.F for MDJWF:
2104      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2105        change rho -> rho-rhoConst
2106      - replace call find_rho to find_rhonum
2107    o initialisation of rFlx extended to full array (required by TAF)
2108      and shifted to thermodynamics
2109    o removed PTRACERS.h in ptracers routine
2110    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2111    o Correcting initialisations for fVerU, fVerV.
2112    o helping TAF to recognize dependency on kUp for
2113      fVerU, fVerV
2114    o Replacing delZ by delR in pkg/ctrl/
2115    checkpoint51o_pre
2116    
2117    o undid all of cp51 pending some cleanups and discussion
2118    o added the [#include "AD_CONFIG.h"] statement to all files that need
2119       it for adjoint/tl #defines
2120     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2121     o removed tools/genmake since it no longer works
2122    
2123    checkpoint51n_post
2124    o modifications to make FREEZE flux visible to pkg/kpp
2125      - moved surfaceTendencyTice from pkg/seaice to main code
2126      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2127      - subroutine FREEZE now limits only surface temperature
2128        (this means new output.txt for global_ocean.90x40x15,
2129         global_ocean.cs32x15, and global_with_exf)
2130    o added surface flux output variables to TIMEAVE_STATVARS
2131    
2132    checkpoint51n_pre
2133    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2134    o added [#include "AD_CONFIG.h"] to all files that use the following
2135      defines:
2136      - ALLOW_ADJOINT_RUN
2137      - ALLOW_TANGENTLINEAR_RUN
2138      - ALLOW_ECCO_OPTIMIZATION
2139    
2140    checkpoint51m_post
2141    o incorporating changes to get TAMC/TAF working in genmake2
2142      - added new TAMC/TAF targets to the Makefile
2143      - various cleanups related to package handling
2144      - these changes should have no impact on the forward model
2145    
2146    checkpoint51l_post
2147    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2148     - faster algorithm for cal_addtime.F
2149     - higher precision arithmetic, where needed
2150     - pkg/exf *startdate variables changed from calendar date to
2151       model integration time
2152    
2153    checkpoint51l_pre
2154    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2155    o enable to apply restoring on S & T only in a latitude band.
2156    o update output (external_forcing_surf modif. change truncation errors)
2157       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2158    
2159    checkpoint51k_post
2160    o change default to: useNHMTerms=.FALSE.
2161     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2162       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2163     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2164        exp1, ideal_2D_oce
2165     - change data file of oceanic exp (leave the results unchanged for now)
2166       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2167    o set gravitySign automatically according to the vertical coordinate used
2168      (and change sign: back to "logical" value: +1 when R increases downward)
2169    o added an include barrier to the default CPP_OPTIONS.h and
2170      removed the #include "PACKAGES_CONFIG.h" from it
2171    o fix a bug in mom_fluxform (from chk51j_post)
2172    
2173    checkpoint51j_post
2174    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2175    o adjusted some flow directives (dynamics, thermodynamics)
2176    o added cubed-sphere case to test cost function
2177    o heckpoint_lev?_directives.h now include
2178      pkg-specific directives, whenever those are enabled.
2179    o Moving pkg-specific flow directives to corresponding pkg
2180      Moving pkg-specific differentiation list to corresponding pkg
2181      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2182      ---> conventions are
2183           - pkg_ad.flow
2184           - pkg_ad_diff.list
2185           - pkg_ad_check_lev?_dir.h
2186    
2187    checkpoint51i_post
2188    o merge of the branch-genmake2
2189      - knowingly breaks the older genmake
2190      - automatic generation of all ALLOW_${PKG_NAME} defines
2191      - new testreport supersedes older testscript
2192    o large number of package inclusion and header cleanups
2193    checkpoint51i_pre
2194    
2195    o new output for adjoin of global ocean vector invariant
2196    o fix for checkpoint of thermodynamic seaice and bulk_force
2197    o Steph gchem various cleanups
2198    
2199    checkpoint 51h_pre
2200    o fixed some single quotes
2201    o modify gchem pkg to be more versatile
2202    o modifications to clean up dic pkg
2203    o add pkg/cfc
2204    
2205    checkpoint51g_post
2206    o provide links for ARPACK and ADM*TLM
2207    o start removing verification/vero/
2208    o update AD-related stuff
2209      (in particular some IF-statements in model/src/ routines)
2210    o adding to verification/global_ocean.90x40x15/ adjoint of
2211      vector invariant setup
2212    
2213    checkpoint51f_post
2214    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2215    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2216      of tracer Green's fucntions for ocean inversion project.
2217    
2218    checkpoint51f_pre
2219    o Added on-the-fly spatial interpolation capability
2220        "USE_EXF_INTERPOLATION" to pkg/exf.
2221      - This is a temporary Cartesian-grid hack until
2222        the super-duper ESMF coupler becomes available.
2223      - See verification/global_with_exf/README for usage example.
2224      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2225        flags and modified pkg/seaice accordingly.
2226    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2227        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2228        non-local transport term.
2229    
2230    checkpoint51e_post
2231    o pkg/mom_vecinv:
2232      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2233      - add time-ave diagnostic of vorticity advection.
2234    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2235    o atmospheric geopotential: - include water vapor effect;
2236                                - use p^kappa in p* scaling.
2237    o land pkg: read initial state from files.
2238    o AIM : add stratospheric drag in the upper level
2239    
2240    checkpoint51d_post
2241    o change function ILNBLNK (=> last non-blank char.) to return zero
2242      (instead of the string length) when the string. char is empty
2243    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2244    o modif's to restore TAMC compatibility
2245      - avoid "_d" constructs in PARAMETER declarations
2246      - avoid interrupting lines by comment lines
2247    o Use cluster local disks for purely local I/O
2248      vs. globally visible disks needed for ctrl stuff
2249      (merged from ecco-branch)
2250      - new active_file_loc... and mdsio_..._loc routines
2251      - affected packages: autodiff, ctrl, grdchk, mdsio
2252    
2253    checkpoint51c_post
2254    o introducing integer flag debugLevel
2255      - debLevZero: suppress all output
2256      - debLevA: standard
2257      - debLevB: equivalent to current debugMode=.TRUE.
2258    o introducing pathname variable mdsioLocalDir for mdsio
2259      that can be specified at runtime
2260      (relevant for cluster I/O to local disk)
2261    `
2262    >>>checkpoint51b_post
2263    adjoint of ptracers
2264    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2265    o extended state in checkpoint_lev?, etc.
2266    o alternative ctrl/cost with tr1 or ptracer
2267    o new comlev1_bibj_ptracers
2268    o new ptracers.flow
2269    o made ptracers_forcing same as external_forcing_s
2270    o added verification for adjoint with ptracers
2271      - adm. grdchk fail so far
2272      - tlm. grdchk OK
2273      - checked tapelev/comlev recomputations: OK
2274    <<<checkpoint51b_pre
2275    
2276    checkpoint51a_post
2277    o added code for biogeochemistry package
2278      - new pkgs: dic, gchem
2279      - new subroutine in ptracers
2280    o modify code for biogeo packages
2281      - in model/src and pkg/ptracers
2282    
2283    checkpoint51
2284    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2285      - autodiff, ctrl, exf, grdchk, seaice
2286      kept separate packages
2287      - cost, ecco, obcs
2288    o updating verification/internal_wave, verification/lab_sea
2289      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2290    
2291    checkpoint50i_post
2292    o Preparing next differentiable checkpoint and sync
2293      of MAIN vs. ecco-branch
2294      - 1st step: this one is differentiable
2295      - 2nd step: next(! not this) checkpoint will have updated packages
2296                  from ecco-branch)
2297    
2298    checkpoint50h_post
2299    o new package "land": provide surface BC for AIM.
2300    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2301    o AIM: use true log-P extrapolation for near surface temp (= as in
2302        F.Molteni paper) ; update aim.5l_cs output.
2303    o New variable in PARM03 for more flexible pickups
2304    o somewhat cleaned package initialisation sequence for
2305      ctrl/ cost/ ecco/ in packages_... routines
2306    
2307    checkpoint50g_post
2308    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2309      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2310      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2311        made the default because of faster convergence than ADI
2312    
2313    checkpoint50f_post
2314    o exf totally restructured
2315      - replaced all exf_set_ routines by one generic exf_set_gen.F
2316        and made sure it's still differentiable
2317      - split exf_getffields.F into new exf_bulkformulae.F
2318      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2319      - updated adjoint/makefile and relevant verif. accordingly
2320    
2321    checkpoint50f_pre
2322     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2323          + change Evap over land. (update aim.5l_cs output)
2324     o added missing .cvsignores and made uniform across expts
2325     o changed configuration of tidal_basin_2d expt
2326     o added pkg/debug functions for tracing code in fatal crashes
2327     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2328     o new fn in pkg/monitor to stop model if solution grows too big
2329     o removed lots of single quotes from comments
2330    
2331    checkpoint50e_post
2332    o make KPP work with PTRACERS
2333     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2334       nearly a copy of kpp_transport_s
2335     - there is no analogue to SurfaceTendencyS, so I have to use
2336       gPtr(of the surface layer) instead
2337    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2338    checkpoint50e_pre
2339    
2340    checkpoint50d_post
2341    o change kpp output from multiple-record state files to single-record state
2342      files analogous to write_state.F
2343    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2344      analogous to the cg2d-related output.
2345    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2346      so that writing to internal file fn (with length 512) fails.
2347    checkpoint50d_pre
2348    
2349    checkpoint50c_post
2350    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2351    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2352    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2353    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2354    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2355    
2356    checkpoint50c_pre
2357    Merging from release1_p13:
2358    o bug fix for pkg/seaice dynamic solver
2359    o Added SEAICE_initialHEFF to pkg/seaice
2360    
2361    checkpoint50b_post
2362    o store u*,v* in gU,V instead of in guNm1,gvNm1
2363    o in order to put the momForcing out of the Adams-Bashforth:
2364      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2365      to timestep.F
2366    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2367    o re-generate output for highly sensitive test-exp:
2368       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2369    
2370    checkpoint50b_pre
2371    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2372    o corrected CPP option mismatch in exf_Bulk... functions for case
2373      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2374    
2375    checkpoint50a_post
2376    o Bug fix for merging between c50 and KPP.
2377      ikey was passed from thermodynamics to kpp_calc via
2378      common block rather than being recomputed in kpp_calc,
2379      in contradiction with new key itdkey.
2380      New key ikppkey created, and tamc.h headers updated.
2381    
2382    checkpoint50
2383    - 2nd step of merge with ecco-branch:
2384      merge changes in ecco-branch back into main trunk
2385    - bug fix in find_alpha
2386    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2387    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2388    - merged some sliced AD support routines
2389    
2390    checkpoint49
2391    merged from ecco-branch:
2392    o exf:
2393      - Enable initialisation of forcing fields to constant
2394        (runtime) values.
2395      - in exf_getffields.F
2396        Reduce i-/j-loop to interior domain, discarding overlaps.
2397        That also fixes wrong TAF-key computations for key_1, key_2
2398        with bulf formulae.
2399      - exf_init.F modify #ifdef for exf_init_evap
2400      - exf_getffieldrec.F, ctrl_getrec.F
2401        The following INT-usages are not safe:
2402          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2403          fldcount = int(fldsecs/fldperiod) + 1
2404        and were modified.
2405    o autodiff: checkpoint_lev...
2406      - updated storing for bulk formulae (some arrays were missing)
2407      - added state for seaice package
2408      - synchronized with main branch
2409    o DIVA:
2410      Modif.s in
2411      - the_main_loop.F
2412      - the_model_main.F
2413      and added cost_final_restore.F cost_final_store.F
2414      o With these changes, it is possible to fully separate
2415        the first forward run to compute the cost function (mdthe_main_loop)
2416        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2417        into separate model executions.
2418        This enables better tuning of DIVA to given queue sizes.
2419      o Loss of cost function value in consecutive DIVA runs is
2420        fixed by storing to 'costfinal' file.
2421      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2422        beginning/end of adjoint integration is accounted for.
2423      The current changes apply to TAF-1.4.26.
2424      TAF has one remaining bug, requiring one manual change
2425      (see MITgcm manual).
2426    o cal: synchronized between MAIN and ecco-branch
2427    
2428    checkpoint48i_post
2429    o Changes to restore differentiability of code w.r.t. previous tag
2430      (mostly adding new routines to make list and replacing
2431      pressure by totPhiHyd).
2432    o Updated and merged grdchk package
2433      - has both ADM and TLM checks
2434      - works for single- and multi-proc.
2435      - output cleaned
2436      - worked successfully for parallel DIVA
2437    o genmake:
2438      - Adding -platform=SP4
2439      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2440    o Modif. for DIVA:
2441      ctrl_unpack should not be called in intermediate DIVA interval.
2442      (similar thing would apply for active files such as
2443      tbar, sbar, psbar, which should not be reinitialised;
2444      only relevant for ecco-branch)
2445    
2446    checkpoint48h_post
2447    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2448    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2449    o Added SEAICE_initialHEFF to pkg/seaice
2450    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2451    
2452    checkpoint48g_post
2453    --- EOS:
2454    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2455      store total Potential in totPhyHyd for diagnostics & EOS.
2456    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2457    --- Pressure/geopotential gradient:
2458    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2459    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2460      ( changes results of global_ocean_pressure )
2461    o NLFS + z-coord.: add eta*Rho' contribution.
2462    o accurate phiHyd when using interface-W at the middle between 2 centers
2463     ( changes results of ideal_2D_oce )
2464    o includes r* 2nd term in potential gradient.
2465    
2466    checkpoint48f_post
2467    Merging from release1_p12:
2468    o Modifications for using pkg/exf with pkg/seaice
2469      - improved description of the various forcing configurations
2470      - added basic radiation bulk formulae to pkg/exf
2471      - units/sign fix for evap computation in exf_getffields.F
2472      - updated verification/global_with_exf/results/output.txt
2473    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2474      (SBO) core products, including oceanic mass, center-of-mass,
2475      angular, and bottom pressure (see pkg/sbo/README.sbo).
2476    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2477      to avoid negative values in shallow regions.
2478      - updated verification/natl_box/results/output.txt
2479      - updated verification/lab_sea/results/output.txt
2480    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2481    o Added useSingleCpuIO option (see PARAMS.h).
2482    o Updated useSingleCpuIO option in mdsio_writefield.F to
2483      work with multi-field files, e.g., for single-file pickup.
2484    o pkg/seaice:
2485      - bug fix in growth.F: QNET for no shortwave case
2486      - added HeffFile for specifying initial sea-ice thickness
2487      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2488    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2489      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2490    o pkg/seaice:
2491      - adjoint-friendly modifications
2492      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2493    
2494    checkpoint48e_post
2495    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2496    o dynamics: change definition of computational domain & adapt mom_fluxform
2497      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2498    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2499        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2500        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2501        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2502        inverted_barometer solid-body.cs-32x32x1
2503      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2504    
2505    checkpoint48d_post
2506    o in preparation for r*:
2507     a) use pre-computed gradient of hydrostatic potential:
2508        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2509     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2510        => affects results of glob_oce_pressure (different truncation error)  
2511      update output.txt of ideal_2D_oce & global_ocean_pressure
2512    
2513    checkpoint48d_pre
2514    o in preparation for r*:
2515      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2516      pass the 2 comp. of the grad. as arguments to momentum S/R.
2517      but for the moment, only used if it does not change the results.
2518    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2519    
2520    checkpoint48c_post
2521    Modifications in treatment of initial flux forcing controls
2522    to avoid extra storing of flux fields.
2523    
2524    checkpoint48c_pre
2525    o Added tidal_basin_2d experiment (currently 1D!)
2526    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2527    
2528    checkpoint48b_post
2529    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2530     (modification to pressure gradient not yet implemented)
2531    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2532      (for U & V) that are used for vertical advection of momentum.
2533    
2534    checkpoint48a_post
2535    o In preparation for r*, use temp. array to compute vertical transport
2536       in flux-form momentum pkg. => change results of few test-exp.
2537      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2538                        lab_sea, natl_box & plume_on_slope
2539    
2540    checkpoint48
2541    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2542    
2543    checkpoint47j_post
2544    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2545    o moved adexch from forward_step to addummy_in_stepping
2546    o added exch in ctrl_map_...
2547    o aveFreq.=0. at end of cost_final to avoid overwrite in
2548      reverse checkpointing loop
2549    o Yet more changes in gmredi:
2550      * adgmredi_calc_tensor
2551        avoiding all recomputation of gmredi_slope_limit
2552      * adgmredi_x/y/rtransport
2553        added flag for excessive storing to avoid recomp. of
2554        u/v/rtans, dTdx/y/z
2555        -> this is not really necessary and very memory-consuming
2556      * adgmredi_slope_psi:
2557        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2558      * gmredi_slope_limit
2559        re-activated full calculation of taperfct for case 'ac02'
2560    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2561    
2562    checkpoint47i_post
2563    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2564    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2565      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2566    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2567    o gmredi: fix few bugs.
2568    
2569    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2570    This will be a good checkpoint to plug into the ecco-branch.
2571    o few modif.'s to get latest version adjointed
2572      (mainly kick out code in ini_linear_phisurf)
2573    o modif's to run adjoint with exactConserv
2574    o case GM_BOLUS_ADVEC should be cleaned
2575      S/R gmredi_slope_psi should be cleaned
2576    o verification/carbon now has exactConserv=.TRUE.
2577    
2578    checkpoint47g_post
2579    o time-average AIM output: becomes independent from statvars time-average
2580      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2581    o After TAF bug fix:
2582      Tested adjoint of gmredi package.
2583      Tests were done with checkpoint47 rather than with latest
2584      checkpoint47f_post since the latter is broken for the adjoint
2585      verification/carbon/ contains both ADM and TLM gradient checks.
2586    Here they are, before they get changed/lost/stolen.
2587    Mostly modif.'s to fix numerical sensitivities.
2588    Gradient checks OK for
2589    - GM_taper_scheme:
2590      * clipping
2591      * ac02
2592      * linear
2593      * glw91
2594      * dm95
2595      * ldd97
2596    - GMREDI_OPTIONS:
2597      * GM_VISBECK_VARIABLE_K
2598      * GM_NON_UNITY_DIAGONAL
2599      * GM_EXTRA_DIAGONAL
2600      * GM_BOLUS_ADVEC
2601    in conjunction with data.gmredi parameters to be checked in
2602    in a few minutes under verification/carbon/code/
2603    
2604    checkpoint47f_post
2605    Merging from release1_p10:
2606    o modifications for using pkg/exf with pkg/seaice
2607      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2608        and SEAICE_EXTERNAL_FLUXES
2609      - pkg/exf CPP options EXF_READ_EVAP and
2610        EXF_NO_BULK_COMPUTATIONS
2611      - usage examples are Experiments 8 and 9 in
2612        verification/lab_sea/README
2613      - verification/lab_sea default experiment now uses
2614        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2615    
2616    checkpoint47e_post
2617    o created a tag prior to creating a branch
2618    
2619    checkpoint47d_post
2620    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2621      at the bottom boundary had an erroneous half slip boundary condition
2622    o added bottom drag and no slip boundary condition capabilities to
2623      oceanic pressure coordinates code
2624    o added new verification experiment global_ocean_pressure, this experiment is
2625      also described in the tutorial section of the manual
2626    checkpoint47d_pre
2627    
2628    checkpoint47c_post
2629    o Added a verification experiment for a global cubed-sphere ocean run
2630      -  verification/global_ocean.cubed32x32x30
2631      -  uses pkg/therm_seaice and pkg/bulk_forcing
2632    
2633    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2634    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2635      when using P-coordinate; only implemented for atmospheric config.
2636    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2637      NOTES: requires option NONLIN_FRSURF to be "#define".
2638    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2639    
2640    checkpoint47b_post
2641    Merging from release1_p9:
2642    o pkg/seaice
2643      - removed GOTO's and added taf directives
2644      - double precision constants to reduce the g77 (Linux)
2645        to F77 (SGI) differences reported in release1_p8
2646    o tools/genmake
2647      - added SGI options
2648    o verification/testscript
2649      - updated to that of checkpoint47a_post
2650    o verification/global_ocean.90x40x15/input/eedata
2651      - modified for SGI f77 compatibility
2652    o verification/lab_sea
2653      - added description of sea-ice model
2654      - added missing matlab routines
2655      - added test of thermodynamics parallelization
2656    
2657  checkpoint47a_post  checkpoint47a_post
2658  o new pkg: aim_v23  o new pkg: aim_v23
2659   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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