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revision 1.72 by heimbach, Thu May 30 02:38:38 2002 UTC revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
8    o pkg/exf: some cleaning-up:
9      - change various "constants" into runtime parameters
10      - cleaned-up Large&Yeager04 routine which should eventually
11        replace exf_bulkformulae.F (changed names of S/R and CPP)
12        and merged various ALLOW_ATM_WIND options
13     only used with thsice pkg (in thsice_get_exf.F):
14      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
15        which are used when useStabilityFct_overIce=TRUE (= the default)
16      - change default values of ice & snow emissivity and scale downward LW
17        by ice & snow emissivity.
18    o pkg/thsice:
19     fix few little problems, in thsice_calc_thickn.F:
20      - growth vertically (and not laterally) if iceFrac == iceMaskMax
21      - melt laterally only if hIce < hThinIce (as the comments say)
22      and in thsice_extend.F:
23      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
24      - start to form ice as soon as the minimum ice-volume is reachable.
25     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
26      and cpl_aim+ocn
27    o pkg/kpp
28     - move computation of surface related input fields to KPP into a new
29       subroutine kpp_forcing_surf.F
30     - remove wrong (within bi,bj loops) EXCH calls.
31     - little cleaning (add argument myThid in last position, cvs header ...)
32     - for now, fix conservation problem by exchanging KPPviscAz (may not
33       be the best fix)
34    o pkg/seaice
35     - check for inconsistent evp parameter/cpp-flag combination
36     - remove leftover errIO flat for obsolete name list error handling
37    
38    checkpoint59a
39    o pkg/seaice: some parameter clarifications and a little bit of clean up
40    o pkg/thsice: rename run-time parameters:
41       himin       -> hIceMin
42       himin0      -> hThinIce
43       hihig       -> hThickIce
44       i0          -> i0swFrac
45       transCoef   -> bMeltCoef
46       frac_energy -> fracMelting
47      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
48       with default values (for now) that do not change the results.
49      remove old version of thsice vars advection in pkg/seaice.
50    o in FFIELDS.h:
51      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
52      - make pLoad & sIceLoad always available (but still only used if
53         ATMOSPHERIC_LOADING is #define).
54    o pkg/kpp: replaced _KPP_RL with _RL
55    o bug fixes for vertical diffusivity computations when both KPP and
56        3D diffusivity arrays are used.
57    o pkg/seaice: fix bug in evp solver, while doing that
58      - change (improve?) discretization of stress computations for both
59        cgrid-lsr and evp solver
60      - add a new routine to compute strain rates
61      - the above changes lab_sea results
62      - add no slip conditions for evp solver (off by default), lsr-version
63        may follow
64      - fix exchange for shear at Z-points (does not change lab_sea)
65      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
66        (to force the user to pick a time step since there is not "safe" way
67        of choosing it)
68      - add principal stress diagnostics
69      - rearrange fields for evp a little to avoid having to call a: too many
70        exchanges and b: exchanges for stress trensor components which we do
71        not have.
72      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
73        of evp, complete rewrite for lsr case (latter is does not yet work
74        in all cases)
75    o pkg/kpp: add code to have mixing in shelf ice caverns
76      - add myThid to all kpp routines (long overdue)
77    
78    checkpoint59
79    o pkg/exf:
80      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
81        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
82      - move exf header files from lower_case.h to UPPER_CASE.h ;
83        add missing cvs Header & Name
84      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
85      - add namelist param. selectStressGridPosition, exf_monFreq
86      - retire many _CLIM routines, and remove data.exf_clim
87        + params moved to data.exf
88        + climsst, climsss now handled by exf_set_gen, i.e.
89          climss?period=0 refers to constant field,
90          climss?period=-12 to monthly forcing
91      - split up namelists in data.exf
92    o pkg/seaice:
93      - remove seaice_exch and seaice_exch_uv
94      - remove superfluous exchange of theta
95      - add myThid to seaice_budget_ocean/ice
96      - add new interface for atmospheric wind forcing (C-grid only)
97        + new routine
98        + two new field (taux, tauy for stress over ice)
99        + removed one global field (DAIRN) for C-grid case only
100    o pkg/thsise
101      - 2nd set of modifs for thsice adjoint in conjunction with exf
102    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
103    
104    checkpoint58y_post
105    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
106      vertical diffusivity, similar to that in MOM4; turned on using
107      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
108      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
109    o Added capability for 3D specification of background vertical diffusion
110      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
111      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
112      "data" file that contains the 3D vertical diffusivity coefficients.
113    o ice dynamics (pkg/seaice) with thsice thermodynamics:
114      - add code within pkg thsice to advect & diffuse sea-ice fields
115      similar to (and will replace) what has been added in  seaice_advdiff.F,
116      but: - conserving Mass, Heat & Salt.
117           - better when using non-linear advection scheme (not yet fully tested)
118           - can also be used in atmospheric set-up (for now, only the diffusion).
119    
120    checkpoint58x_post
121    o IO option for global-file compact format:
122      - add options when generating topology (utils/exch2/matlab-topology-generator)
123      - add I/O capability (pkg/mdsio).
124      - adapt utils/matlab/rdmds.m to read this format.
125      for now long-line format not yet supported by pkg/mdsio (& exch2).
126    o shelfice: add a few diagnostics
127    
128    checkpoint58w_post
129    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
130      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
131      (and replace horiVertRatio in NH code).
132      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
133                         and tutorial_plume_on_slope (sensitive to truncation)
134    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
135      directly to drive seaice model (C-grid only)
136    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
137     - reintroduce computation of wind from stress,
138     - compute tau (in exf_bulkformulae.F) from windstress averaged to
139       mass points to avoid tau = 0
140     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
141    o rdmnc.m: make it work with "global" files created with gluemnc
142    o rdmnc.m : some improvements in dealing with singleton dimension
143      (tested on all testreport mnc output files).
144    o genmake2: disable pkg/profiles if netcdf test fails.
145    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
146    o move call to cal_readparms up to make calendar parameters/variable available
147      to all packages
148    
149    checkpoint58v_post
150    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
151      useDynP_inEos_Zc tested.
152    o pkg/exf: changes to properly interpolate/mask/scale initial fields
153    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
154      and portions thereof.  See read_cs.txt for description and examples.
155    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
156      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
157      following the great-circle arc between those 2 points.
158    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
159      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
160    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
161     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
162     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
163     - still needs work (not working with some options ; efficiency to improve)
164       and serious testing.
165     - use this scheme for temperature & salinity in 2 advection test exp.:
166       advect_xy & advect_xz, respectively.
167    
168    checkpoint58u_post
169    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
170    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
171    o testreport: add option "-skipdir" to skip some test.
172    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
173      momentum calculation.
174    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
175    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
176      remove checkpoint.F and the_correction_step.F (no longer used);
177      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
178    o add option (linFSConserveTr) to correct for tracer source/sink due to
179      Linear Free surface
180    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
181    o pkg/thsice: fix reading mnc-pickups
182    
183    checkpoint58t_post
184    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
185    o pkg/mdsio:
186     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
187       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
188       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
189     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
190     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
191       either MDS_READ_FIELD or MDS_WRITE_FIELD )
192     - new S/R (to replace MDSWRITEMETA), which allows to write more
193       informations (variable names, time ...) to meta files.
194     - modify rdmds.m to give back the meta file content.
195    o pkg/diagnostics: change vertical interpolation to be safer, and more
196       flexible (define p-levels to interpolate to in data.diagnostics);
197      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
198       diagnostic pointer.
199    o pkg/seaice: more cleaning up of seaice_growth, added many comments
200    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
201    o fix multi-category seaice:
202     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
203       SEAICE_MULTICATEGORY
204     - fix short wave heat flux
205    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
206       and allow to use EVP solver. Change forward lab_sea: test both EVP
207       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
208    o Initial check-in of lab_sea adjoint
209      (very similar to natl_box_adjoint/code_seaice)
210      * used C-grid and EVP solver
211      * used KPP, GM/Redi
212      * uses inAdExact=.TRUE.
213      * gradient checks fail for both ADM and TLM
214        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
215        f.d. gradients actually seem more problematic than ADM, TLM gradients;
216        issue is related to forward mismatch between g77 an ifort
217    o pkg/seaice: overhaul of thermodynamics
218     - growth.F and groatb.F are replaced by new routine seaice_growth.F
219     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
220     - move a few global fields out of SEAICE.h into seaice_growth.F and
221       make them 2D (FICE/QNETO/ ...)
222     - remove FO (it is the same as QNETO)
223     - introduce a few local fields to avoid modifying external fields such
224       as atemp, etc.
225    
226    checkpoint58s_post
227    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
228      changed exf_set_gen.F so that
229        genperiod=0 means input file is one time-constant field and
230        genperiod=-12 means input file contains 12 monthly means
231    o CG2D: use pre-computed solver main-diagonal (stored in common block);
232      this affects truncation error ; generate new output file for exp. which
233      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
234        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
235        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
236        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
237        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
238        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
239    o start implementation of deep-atmosphere and anelastic formulation
240    o verification: remove 2nd copy of input files and use script "prepare_run"
241      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
242    o mom_common/vecinv/fluxform: fix a few initialisation isssues
243    o profiles: fix for multithreaded case
244    
245    o diagnostics: rename few diags:
246      s/'PRESSURE'/'RCENTER '/g
247      s/'TICE    '/'oceFreez'/g
248      s/'TAUX    '/'oceTAUX '/g
249      s/'TAUY    '/'oceTAUY '/g
250      s/'SWFLUX  '/'oceQsw  '/g
251      s/DIFx/DFxE/g
252      s/DIFy/DFyE/g
253      and add few ocean-forcing diagnostics:
254      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
255    o modifications to pkg/seaice/growth.F and budget.F, which change results of
256      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
257      as actual snow thickness.  It now refers everywhere to effective snow
258      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
259    
260    checkpoint58r_post
261    o modifications to pkg/seaice/growth.F, which change results of
262      lab_sea experiment: fixes pertain to melting snow over open water, to
263      masking EVAP under sea ice, and to using the correct AREA variable for
264      computations of EVAP, PRECIP, HSNOW, and GHEFF
265    o add ability to read bathy, salt, and theta using MNC (off by def)
266    o add flooding algorithm and advection of HSNOW for pkg/seaice;
267      both are turned off by default and do no change any results
268    o seaice advection with pkg/thsice: a step toward the use of non-linear
269      advection scheme, but #ifdef or commented out for now (requires more EXCH).
270    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
271      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
272      in natl_box (affects results @ truncation level: update output.txt)
273    o multi-threading and IO:
274      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
275      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
276        (needed to work with SingleCpuIO): tested in all verif. exp.
277    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
278      affects the results (but none of the verification test uses this scheme).
279    o Adding some pkg/diagnostics capability to pkg/seaice
280      (will certainly be subject to changes)
281    o ctrl: adding new control variables:
282      lwflux, lwdown, evap, snowprecip, apressure, runoff
283    
284    checkpoint58q_post
285    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
286      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
287      high_res_cube configuration by 4% on Columbia.
288    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
289      add (in global_with_exf/code) a version of EXF_INTERP_READ without
290      dynamical allocation (seems to work in multi-threaded).
291    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
292      single CPU io) so that TAF does not have to see EESUPPORT.h
293    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
294    
295    checkpoint58p_post
296    o obcs: stop if obcs is used with useCDscheme = .true.
297    o shelfice:
298     - fix a sign error so that no slip at shelfice interface works
299     - remove stop for combination non-hydrostatic code and shelfice. That does
300       not mean, that the results are correct, but at least they are numerically
301       stable
302    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
303    o added adjoint exch routined for all exch*3d* routines
304      and updated flow directives
305    
306    checkpoint58o_post
307    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
308      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
309    o change controling S/R for writing pickup file (new S/R do_write_pickup)
310      and clean-up reading/writing of pickup files.
311    o fix local version of read/write pickup (NH part) in rotating_tank/code
312    o simplify EXCH interface:
313     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
314     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
315    o added the regrid package
316    o shelfice:
317     - add a simple boundary layer scheme to reduce noise
318     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
319    
320    checkpoint58n_post
321    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
322       local variable (not in common block).
323    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
324      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
325      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
326        to work with SingleCpuIO.
327    o add "_d 0" to real constant of pkg/cfc subroutines ;
328       update exp. cfc_exemple & tutorial_cfc_offline output files.
329    o multi-threading and IO:
330      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
331        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
332      - barrier before and after reading.
333      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
334      - avoid using MDS_WRITELOCAL for LAND pkg output.
335      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
336        common-block variables ; Allows multi-threading with master-thread IO.
337    o change default MAX_NO_THREADS from 32 to 4 ;
338      and stop cleanly when MAX_NO_THREADS is too small.
339    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
340    
341    checkpoint58m_post
342    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
343       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
344    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
345       keep global_ocean.90x40x15 (for AD testing) with former secondary test
346       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
347    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
348        add MITgcm_tutorials (= code + all the tutorials)
349    o ecco, option to compute cost for total ssh (mean+anom)
350    o consistent with addition of ptracer and ssh in pkg/profiles
351    o profiles: adding ptracer and ssh
352    o testreport: change multi-test output-file name
353      (from output.txt.{name} to output.{name}.txt)
354    o profiles: now ok for mutli-tiles case
355    o seaice: add 4 parameters for different advection schemes for area,
356      (effective) seaice thickness, enthalphy, and snow height. Their default
357      is the standard parameter SEAICEadvScheme
358    o calc_gw:
359     - add cosFacU in zonal viscous flux (harmonic.visc.).
360     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
361       of tutorial_plume_on_slope.
362    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
363    o calc_gw: true flux-form, account for horizontal grid spacing.
364      update rotating_tank results, but not plume_on_slope (affected at
365      truncation level, 11 digits).
366    
367    checkpoint58l_post
368    o calc_gw:
369     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
370     - remove side-drag for now (need to fix it); update plume_on_slope results.
371     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
372    o commit code to make SST/SSS weights spatially variable
373      (based on either variable in-situ or variable initial T/S weights)
374    o pkg/ecco:
375      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
376        now based on horizontally varying weights wthetaLev, wsaltLev
377      * cost_averagesflags now returns year indices in addition to day, month
378      * sflux balance is performed on annual basis
379        (sflxumm, sfluxmm2, bal_sfluxmm)
380      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
381        including separate counting and multipliers
382    o pkg/rbcs
383      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
384    
385    checkpoint58k_post
386    o testreport:
387     - always build in dir. "build" (if not there, mkdir build instead of building
388       & running in input)
389     - run in dir run (if it exists), in build otherwise.
390     - call prepare_run (if input/prepare_run exists)
391     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
392    o pkg/exf modifications to interpolation and rotation routines for more
393       reasonable treatment of North Pole singularity: for tracers North Pole
394       value is set to northernmost zonal-mean value, for zonal velocity it is
395       set to zero, and for meridional velocity it is set to northernmost value.
396    o pkg/exf/exf_check_range.F
397     - add tile index to diagnostics and move stop statement to the very
398       end of the routine.
399    o pkg/diagnostics: (diagnostics_main_init.F)
400      define title of isomorphic variables according to the current config.
401    o pkg/thsice with pkg/seaice dynamics:
402    - fix domain of computation (interior only, required for exf) and do exchanges
403    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
404    o towards a standard way of dealing with multi-threading in MONITOR
405      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
406    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
407       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
408    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
409    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
410    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
411       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
412    o tracer advection:
413     - clean-up and simplify calc_common_factors.F
414     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
415       advection subroutine (but still not used within DST advection S/R)
416    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
417    
418    checkpoint58j_post
419    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
420      from file (collects calls previously in FORWARD_STEP)
421    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
422    o adjoint store dir. adjusted accordingly
423    o genmake2
424      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
425    
426    checkpoint58i_post
427    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
428      on wind stress (SEAICEstressFactor defaults to 1.)
429    o Total number of Timers is finite (<=40): comment out 2 non-essential one
430      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
431    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
432      on CS-grid: no longer loosing mass.
433    o exf & curvilinear-grid: no longer modify longitude xC & xG.
434    o pkg/ggl90: fix sloppy output and fix a bug
435    o pkg/seaice: added SEAICEuseEVPpickup parameter
436      - Set to false in order to start EVP solver with
437        non-EVP pickup files when using SEAICEuseEVP
438      - fix sign error in diffusion in seaice_calc_rhs
439    
440    checkpoint58h_post
441    * Modifications for bottom topography control
442      o replace hFacC by _hFacC at various places
443      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
444      o add non-self-adjoint cg2d_nsa
445      o update autodiff support routines
446      o re-initialise hfac after ctrl_depth_ini
447      o works for 5x5 box, doesnt work for global_ocean.90x40x15
448    * Adding verification for 5x5 box (4-layer) bottom topography control
449    
450    checkpoint58g_post
451    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
452       used for mean seasonal cycle, mean diurnal cycle); add an example
453       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
454    o pkg/ggl90:
455      - add parameter (minimum surface kinetic energy)
456      - fix bug (avoiding division by zero)
457    o couple pkg/thsice to pkg/seaice:
458      - modify advection in seaice to accomodate new scalar fields to be advected
459      - only muliDimAdection scheme work with seaice/thsice
460      - mapping of thsice-variables to seaice-variables, back and forth
461      - does not break the verification experiments, but does not give the
462        desired results either
463    o pkg/seaice
464      - make (default) second order advection a bit less confusing?
465    
466    checkpoint58f_post
467    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
468      to pkg/seaice):
469      - new routines thsice_map_exf and thsice_get_exf provide the interface
470      - add an additional formal parameter to thsice_solve4temp
471    o pkg/exf:
472      - add new fields wspeed, snowprecip (to be able to couple to thsice)
473      - correct Stefan-Boltzmann constant
474      - new parameter for longwave surface emittance
475      - separate some stuff from exf_bulkformulae into new routines  
476        exf_radiation, exf_wind
477      - add new parameters and constants: longwave emissivity for ocean, ice
478        and snow, evaporation parameters over ice
479      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
480        either wind from stress or stress from wind
481    o pkg/thSIce:
482    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
483    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
484       and THSICE_CALC_THICKN
485    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
486    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
487      to make debugging easier.
488    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
489    o pkg/bulk_force:
490      - clean-up comments and parameters ;
491      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
492    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
493      generate new output for test-experiment: aim.5l_cs.thSI
494    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
495      testreport accordingly
496    
497    checkpoint58e_post
498    o SEAICE_CGRID adjoint done
499    o R_STAR adjoint implemented.
500      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
501      * need to sort out init. of h0facc, etc.
502    o Make pkg/profile fully independent of ecco,cost, etc. stuff
503      to be able to use it in pure forward.
504    
505    checkpoint58d_post
506    o upgrade simple test-experiment to tutorial example:
507     step.1: duplicate the experiment and (step.2) will remove the old copy.
508      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
509      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
510      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
511      tutorial_global_oce_biogeo    <- copy of dic_example
512      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
513      tutorial_plume_on_slope       <- copy of plume_on_slope
514      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
515      tutorial_global_oce_optim     <- empty for now (David ?)
516      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
517     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
518    o correct a sign problem in cost_scat.F
519    o obcs and ptracers: fix boundary conditions for advections schemes
520      with larger stencil
521    o thsice adjoint: start
522    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
523      completeness
524    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
525      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
526    o ptracers adjoint:
527      * avoid extensive recomputatations
528      * fix missing re-init. of gptr (missed by TAF)
529    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
530      me to turn off the excessive output to STDOUT that this package produces
531    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
532      and add those terms in Vector-Invariant formulation.
533    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
534      if the control period (xx_hfluxperiod etc) is 0
535    o in profiles pkg, clean routines and fix details
536    o in ecco pkg, reading ssh data:
537      fix problem in case the model does not start at iter0=0
538    o fix mnc-pickup/restart for ptracers
539    o new package prifiles:
540      code to compute profile-based cost by Gael Forget
541      (modifs in ecco, ctrl, autodiff)
542    o Benign bug fix in initialization (spotted by M. Mazloff) of
543      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
544    
545    checkpoint58c_post
546    o adjoint: finish NLFS adjoint and provide reference output in
547      verification/global_ocean.90x40x15/results_ad_nlfs
548    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
549      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
550      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
551      with SEAICE_CGRID defined.
552    o move calendarDumps from "data" to "data.cal" and clean-up the code
553      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
554    o add useEXF & useCAL flags (for now, set in hard-coded way)
555    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
556      (were missing in NH mode, and wrong in quasihydrostatic mode).
557      waiting for Chris updated version of calc_gw to add those CALLs.
558    o fix bug in quasihydrostatic S/R ;
559      add a test for this option: global_ocean.90x40x15.qshyd
560    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
561      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
562    o add on/off flag useOffLine for package OFFLINE
563    o seaice:
564      - modify advection so that it works also on the C-grid
565      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
566        problem in multi-tile runs with C-grid
567      - add flags for clipping ice velocities and/or masking solver forcing
568      - fix drag (ocean on ice) formulation and a bug that caused noise in the
569        C-grid solver
570      - added a few comments to seaice_diffusion.F
571      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
572        are now exclusive)
573      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
574        required re-ordering the code a little:
575       + make DAIRN global variable (defined in SEAICE)
576       + move computation of the viscosities eta and zeta into a new separate
577         routine (because I need to recompute them in seaice_ocean_stress.F)
578    
579    checkpoint58b_post
580    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
581      update output.txt of exp. aim.5l_cs.thSI
582    o various mnc cleanups and improvements:
583      + shrink lookup tables by factor of ~4
584      + better error reporting when running out of lookup space
585      + able to handle longer path/file names (up to 500 chars)
586    o adjoint:
587      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
588      - TBD: "hidden" mom_vecinv recomp. in dynamics
589    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
590     (allow to differentiate between forcing components using new integer flags:
591      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
592     and add new flag to put Dissipation tendency out of Adams-Bashforth.
593    o ecco
594      - enable trend removal from SSH anomaly obs.
595    o adjoint
596      - a fix for PmEpR when #undef EXACT_CONSERV
597      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
598      - try to fix "hidden" recomp. in forward_step for NLFS
599        (NLFS seems broken sometimes after I checked it in)
600    o seaice:
601     - add c-grid version of the dynamic solver:
602       + three new routines that are the c-grid substitute lsr, dynsolver
603         and ostres
604       + put a few fields that were local to dynsolver into global common
605         blocks, so that I can move the computation of stresses etc into
606         seaice_lsr (saves coding but may break the adjoint).
607     - replace more hardwired parameters by runtime parameters
608     - add ice masks that mask the rhs of the implicit solvers where there
609       is no ice (commented out in seaice_dynsolver, because i am not sure
610       if this works properly), eventually this should replace the clipping
611       of ice velocities in seaice_dynsolver to +/-40cm/s.
612    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
613      include it only where its needed
614    o move balancing of fluxes before the call of external_forcing_surf
615    o seaice:
616      - correct units of turning angles (now they are really in degrees)
617      - move computation of GWATX/Y out of main routine into dynsolver
618      - initialize GWATX/Y in seaice_init
619    o Apply mask on Fresh-Water flux (needed for SSH forcing).
620      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
621    o seaice: add runtime flags for turning angles (default to zero)
622    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
623      and trend from exf forcing and ctrl control adjustments
624    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
625      (since checkpoint57x_post)
626    o change the default rotation period to 86164.s = the Earth rotation
627    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
628      and based on a reference stratification. Tested within hs94.cs-32x32x5.
629    o seaice advection: add code for choosing between the default (2nd order
630      central differences) and multiDim advection schemes provided by
631      pkg/generic_advdiff
632    o seaice:
633      - removed all references to SEAICE_GRID.h fields from
634        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
635        (cubed-sphere configuration will change a little)
636      - grid computations in seaice_init are obsolete now.
637      - cleaned up code a little so that is easier to read (hopefully).
638      - added new (better?) discretizations of default advection and diffusion
639        (turn on with SEAICEuseFluxForm)
640      - replace 1 in 3d global fields by kSurface in growth.F
641      
642    checkpoint58a_post
643    o seaice:
644      - bug fix in advect.F
645    o shelfice:
646      - separate shelfice load anomaly from pload (breaks with time
647        dependent forcing), => introduce constant field shelficeLoadAnomaly.
648        Its default is 0., but it may be computed more cleverly from (unknown)
649        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
650        done offline. A good approximation of the pressure load anomaly is
651        necessary to avoid large initial adjustment processes underneath
652        deep-reaching shelfice.
653      - small fix in ISOMIP shelfice_thermodynamics
654      - add more sophisticated thermodynamics of Hellmer (1989), this is
655        now the default
656      - give a few constants more intuitive names
657    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
658      if bulk formulae are used in long integration (especially EmPmR). Turn
659      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
660      if balancePrintMean, the imbalance that is substracted is printed to
661      STDOUT.
662    o fix bug (typo) in obcs_apply_eta.F
663    o add a new package shelfice which enables us to model the circulation
664      underneath shelf-ice with draughts of hundreds of meters.
665     - works
666     - to do: + include improved thermodynamics
667              + check whether kSurfC (from model/inc/SURFACE.h) can be used
668                instead of new field kTopC
669              + can we use topoFile, Ro_surf and existing code in ini_depth.F
670                instead of new field R_shelfIce and new code in ini_depth.F
671                and ini_mask_etc.F?
672              + adjust vertical mixing schemes?
673    o seaice pkg:
674     - add a cpp-flag to include a simple formula for a salinity dependent
675       freezing point of sea water at the surface
676     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
677       meridional stresses are now different (and hopefully correct)
678    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
679       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
680       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
681    o pkg/diagnostics: add options and parameters for regional-statistics
682       diagnostics ; define regions by reading a region-mask from a file
683       (might add other options later)
684    o pkg/bulk_force:
685     - add option and parameters to use AIM surface-flux formulae.
686     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
687       others forcing fields (defined in PARM05, parameter file "data") are loaded
688       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
689     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
690     - use the right EXCH call for uwind,vwind (to work on CS-grid).
691     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
692       and parameters (note: calcWindStress replaces .NOT.readwindstress).
693     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
694    
695    checkpoint58
696    o add "--embed-source" option to genmake2 which, when the supporting
697      tools can be compiled (as determined by genmake2) will turn on the
698      embed_files package which then embeds the entire MITgcm source code
699      (*.[fFhc] + Makefile) used for the build within the executable
700      - requested by CNH but off by default
701      - adds a paltry <9MB to the mitgcmuv executable in most cases
702      - only writes the output when useEMBEDSRC in eedata is true
703    o clean up 3-dim. relaxation codes:
704      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
705      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
706      * Thanks to Tom Haine for testing!
707    
708    checkpoint57z_post
709    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
710      affects output (@ truncation level) of exp. plume_on_slope ; updated.
711    o fix the pickup behavior for obcs in combination with ptracers
712    o fix a bug in ptracers_external_fields_load
713    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
714      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
715    o transfered surface NH pressure to eta field (if exactConserv).
716    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
717         and update lab_sea output.txt file.
718    o completing 3-dim. relaxation code: additional term
719         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
720      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
721      * At compile time, in "EXF_OPTIONS.h" set
722          #define  ALLOW_CLIMTEMP_RELAXATION
723          #define  ALLOW_CLIMSALT_RELAXATION
724      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
725          tauThetaClimRelax3Dim = 15552000.0,
726          tauSaltClimRelax3Dim  = 15552000.0,
727      * 3 cases:
728          1) Use a constant-in-time 3-dim. field
729          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
730          3) Real-time relax. to time-evolving prescribed field
731    o Adding Laplacian-type smoothness constraint on
732      initial and boundary (forcing) controls (ic, bc)
733      * enable at compile-time via
734        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
735      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
736      * Absolute scale somewhat unclear so far
737      * no area weighting was included since no other cost term does so far
738    
739    checkpoint57y_post
740    First step for a NLFS adjoint
741    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
742    o new init. routines for calc_r_star, calc_surf_dr
743    o still need to deal with ini_masks_etc
744    o testreport seemed happy
745    checkpoint57y_pre
746    
747    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
748    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
749    o add new offset feature to offline pkg (plus minor cleanup)
750    o cfc fixes for final year of integration
751    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
752      be in GCHEM_OPTIONS).
753    
754    checkpoint57x_post
755    o fix testreport Pb in multiple test experiment.
756    o cleanup our namelist syntax in verification:
757      - make it more F95 standards compliant (some work still needed)
758      - allows the vast majority of our tests to work with gfortran
759    o Non-Hydrostatic:
760     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
761     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
762    o Allow to apply AB on T,S rather than on AB(gT,gS):
763     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
764     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
765       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
766     - need a "clever" read_pickup to restart from the other AB formulation
767    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
768    o remove some unused variables (reduces number of compiler warnings)
769    o adjoint
770      * Disable useVariableViscosity for adjoint for time being
771        (there are a number of extensive recomputations)
772      * Initialize certain variables needed for adjoint
773    
774    checkpoint57w_post
775    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
776                 fix the singleCpuIO RS version of MDSWRITEFIELD
777       and add a WARNING if using globalFiles=T with multi-processors.
778    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
779      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
780    o tracer advection scheme:
781      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
782       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
783       was not very convenient).
784      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
785       (further tests needed for the implicit DST & Flux-Limiter schemes).
786    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
787      and sRef for convenience, handy, when you want to initialize
788      ptracers in a large domain with a constant non-zero value. Also,
789      untangle ptracers_init.F a little.
790    
791    checkpoint57v_post
792    o change dome exp. to use variable viscosity in side-drag terms.
793    o remove all the files from the cfc_offline test since they are now
794      incorporated into tutorial_cfc_offline which has been producing
795      identical results for a few days of testing
796    o add new parameter: sideDragFactor to enable half-slip-side BC
797      and change side-drag S/R to use viscosity from mom_calc_visc
798      (can switch back by setting sideDragFactor=0.); affects results at
799      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
800       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
801    o vorticity & strain are now computed without masking, to account for
802      no-slip-side BC in variable viscosity calculation ; mask is applied
803      anyway later on, before computing advection/coriolis terms.
804    o modify exp4 to test new obcs support for reading from external files
805      and for passive tracers
806    o fix behavior of ptracers_monitor when monitor output is written to a
807      netcdf-file; still not independent of monitor.F (writes in the same
808      file).
809    o change default value of tRef (put a uniform, meaningful value for ocean
810      & atmos) and initialize sRef (was missing, as Martin mentioned).
811    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
812      to be proportional to enstrophy dissipation length.  Thus,
813       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
814      This is now consistent with Smagorinsky and with the manual.
815    
816    checkpoint57u_post
817    o OBCS and PTRACERS: add open boundary support for passive tracers
818      - either use homogenous (pseudo) v.Neumann conditions or prescribe
819        OB-values from file; this is not different from the way theta and salinity
820        are treated
821      - however, Orlanski-radiation conditions are not supported, and the model
822        will stop if you use pTracers and Orlanski at the same time.
823      - beefed up the rountine obcs_external_fields_load: now only those open
824        boundary values are overwritten with values from files for which there
825        are really files, otherwise the OB-fields remain untouched. This makes
826        it possible to use different OBs at different ends of the domain (as
827        with EXF)
828    o reduce number of exch calls in shap_filt (s2).
829    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
830      truncation level) 4/5 MLAdjust test results (11&12 digits match).
831    
832    checkpoint57t_post
833    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
834    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
835      same truncation, independent of the face number: affects affects several
836      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
837    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
838      note that biharmonic viscosity + no-slip was not tested in any experiment.
839    o fix bug in non-linear free-surf side-drag ; generate new output for
840      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
841    o make mnc honor the writeBinaryPrec flag for most kinds of output
842    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
843    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
844      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
845    o add brackets in multi-terms sum to get same truncation, independent of
846      the face number (manage to get exactly same value of gU,gV at the cs-edge)
847      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
848    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
849      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
850      a maximum grid-scale Reynolds number.  Also, changes all length calculations
851      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
852      Suggested values of viscosity parameters found in mom_calc_visc.
853      Many new viscosity diagnostics available.
854    
855    checkpoint57s_post
856    o Add clearing-house for viscosity calculations, mom_calc_visc and
857      correct numerous bugs in LeithD and Smagorinsky discretizations.  
858      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
859      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
860      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
861      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
862      The Strain-Tension form is now called with useStrainTensonVisc=.true.
863      ViscAhStrain and viscAhTension are now retired.
864    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
865    o In response to JMC's bug report, genmake2 now ignores any soft-links
866      that it finds in the *current* directory when searching for files.
867      Soft-links found in any other source directories will still work as
868      they did before.
869    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
870      a C routine to unlimit the stack size
871    o mnc-ify pkg/aim snapshot vars
872    o mnc-ify pkg/land as requested by Daniel
873    o various changes to mnc including:
874      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
875      - output can now be grouped so that all files within a group
876          change the ITER portion of their names in lock-step together
877      - can now read ("global") PER-FACE (in addition to PER-TILE) files
878          and works with both EXCH1 and EXCH2 (but needs more testing)
879      - writing works for all verification test cases w/ g77 on Linux
880    
881    checkpoint57r_post
882    o make MNC variable initialization happen earlier
883    o add diagnostics for (almost) each term of the momentum Eq.
884    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
885    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
886    o remove MINIMAL_TAVE_OUTPUT option ;
887      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
888    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
889      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
890    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
891    o add time-dependent SST, SSS control
892    o cost terms in ecco/ modularized (new cost_generic.F)
893    o cost_averages routines are modularized (new cost_averagesgeneric.F)
894    o new infrastructure for seaice model vs. obs misfits in seaice/
895      * driver from the_main_loop.F is seaice_cost_driver.F
896      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
897      * gradient check in Exp. 6a of natl_box_adjoint/
898    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
899      (see README file)
900    
901    checkpoint57q_post
902    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
903    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
904      - bug was reported by Jean-Michel and Ian Fenty
905    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
906      update exp. cpl_aim+ocn output.
907    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
908      Needed for high-res. runs with large global files
909      to be able to limit tapelev size
910    o Changed some tests for adjoint:
911      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
912      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
913      * global_ocean.90x40x15/ back to default 3-level checkpointing
914    o Modifications to enable scripted COMMON to MODULE conversion
915      * verification/OpenAD/code/ has necessary scripts and description;
916      * converts, compiles and runs successfully;
917    
918    checkpoint57p_post
919    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
920    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
921      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
922    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
923    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
924      (was already the case for dissipation with mom_vecinv,
925       and also the case for grad.PhiHyd when staggered-timeStep)
926      This will allow to put dissipation out-off the AB time-stepping.
927     Unfortunately, affects truncation error. Update output of exp. that "fails"
928      (cg2d matching number) and leave the others for later: front_relax(10),
929      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
930      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
931    
932    checkpoint57o_post
933    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
934      (2) its ready to be documented during the 20050801 DocFest
935    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
936      for ideal_2D_oce and lab_sea on linux_ia32_g77
937    o set to #undef CTRL_SET_OLD_MAXCVARS_30
938      in global1x1_tot/code_seaice_adj to access indices 32, 33
939      (worth another tag)
940    
941    checkpoint57n_post
942    o adding precip control xx_precip 32
943    o adding swflux control xx_swflux 33
944    o Replacing 10 forcing penalty cost routines by 1 generic.
945    o Implementing partitioning in time-mean and variable adjustment
946      for atmos. state.
947    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
948    o in natl_box_adjoint:
949      * updated exp 1 to 10
950        (but does not have time-mean vs. variable split results yet)
951    o updated global1x1/*_seaice_adj/
952      to incorporate latest changes
953    o enable useSingleCpuIO for mdsio vector routines
954      (applies in particular to tapelev I/O)
955    o removed inefficient K-loop in all active_file*control*.F
956    
957    checkpoint57m_post
958    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
959      and advect_cs (use EXCH-2 and standard cs-32 grid files).
960    o pkg/exch2: filling of face-corner halo regions is optional
961      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
962    
963    checkpoint57l_post
964     tag before updating tutorials (pre-release-2)
965    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
966       for output and interpolation of input fields onto model grid)
967    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
968       Affects results of exp. rotating_tank ; update output.txt.
969    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
970          and taking the square quantity and/or using a fraction-weight field.
971    o fix aim_diagnostics_init.F mate numbers.
972    o add mnc output capability to diagnostics/diagstat and update
973      our cvsignore files for the ACSII output generated
974    
975    checkpoint57k_post
976    o lab_sea now uses diagnostics package and provides a suite of
977      new EXF diagnostics output.
978    
979    checkpoint57j_post
980    o exf
981      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
982        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
983        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
984      * extended diagnostics output
985        - now includes all EXF variables
986        - hs, hl moved to common block
987        - separate S/R for diagnostics, called after ctrl vector is added
988        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
989        - EXFqnet contains true Qnet (i.e. includes qsw)
990      * updated verif. lab_sea, global_with_exf
991      * Rearranging hflux (exf_mapfields -> exf_getforcing)
992        to ensure that diagnostics sees a true EXFqnet
993    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
994    o diagnostics pkg: change pointers so that 1 diagnostic can be used
995      several times with different frequencies.
996    o mnc-ify the thsice package as requested by Daniel Enderton
997      - the monitor--MNC output needs work
998      - many attributes need to be added (most are currently blank)
999    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1000      - many attributes need to be added (most are currently blank)
1001    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1002    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1003    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1004      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1005         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1006    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1007     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1008    
1009    checkpoint57i_post
1010    o Diagnostics package was changed: diagnostic allocation is now deactivated
1011      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1012    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1013      add 1rst Order upwind vertical Shear.
1014    o add a quick fix for A/B checkpointing in OFFLINE mode
1015    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1016      end-run around the C/Fortran linking horror in eesup/src/timers.F
1017    o added pkg/runclock: allows user to terminate run based on wall clock
1018    o added non-hydrostatic scaling parameter: nh_am2
1019    o pkg/my82: futile attempt to make results compiler-independent by adding
1020      some "_d 0", etc. no effect.
1021    o for mnc output, fill the 'T' coordinate var with myTime and create a
1022      separate 'iter' variable for iteration count
1023    o pkg/diagnostics:
1024      add new capability: output of Global/Regional & per-level statistics ;
1025      tested against monitor output (including land & thSIce) on various exp.
1026    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1027    
1028    checkpoint57h_done
1029      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1030      data.diagnostics, data.gchem, data.ptracers) is done.
1031    
1032    o pkg/diagnostics: prepare for Global/Regional statistics.
1033      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1034    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1035      and rename it: DIFFERENT_MULTIPLE
1036    
1037    checkpoint57h_post
1038    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1039    o pkg/diagnostics: change output frequency, now in seconds (instead
1040      of Nb of iterations). This requires to change data.diagnostics.
1041    checkpoint57h_pre
1042    
1043    o in mnc, let the user create the output dir if both mnc_outdir_date
1044      and mnc_outdir_num are false
1045    o add fflags() to pkg/diagnostics which allows one to specify, on a
1046      per-file basis, the file precision [default behavior is unchanged]
1047    o added diagnostics to pkg/kpp, including computation of mixed layer
1048      depth based on a temperature/density criterion
1049    o updated verification/natl_box to test the new pkg/kpp diagnostics
1050    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1051    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1052    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1053      not mnc -- this mistake was found by JMC and is now corrected
1054    
1055    checkpoint57g_post
1056    o add Adams-Bashforth 3rd Order time stepping:
1057      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1058      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1059    checkpoint57g_pre
1060    
1061    o make lambda[Theta,Salt]ClimRelax spatially varying
1062      (default remains spatially uniform constant based on tau)
1063    o added new control variables
1064      * init. uVel, vVel, etanN
1065      * lambda[Theta,Salt]ClimRelax
1066    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1067      (suggested by G. Forget)
1068    
1069    checkpoint57f_post
1070    o add parameter "baseTime" = model base time = time at iteration zero
1071      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1072      account for baseTime shift
1073    o move Coriolis arrays from PARAMS.h to GRID.h
1074    checkpoint57f_pre
1075    
1076    o mnc-ifying the seaice package
1077    o introduced an alternative length scale calculation for use in the limiting
1078      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1079    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1080    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1081      as well as grad(vort3).  Made it compatible with both approximate form
1082      for the cubed sphere and full form of these gradients.  Added flag
1083      useFullLeith to select between approximate and full form.  
1084    o add "d0" in getcon.F to reduce differences between compilers/platforms
1085      update output.txt of exp. fizhi-gridalt-hs
1086    o change port_rand funtion to allow to set the seed.
1087    o fix obscure MNC bug involving conversion between reals and integers
1088      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1089        new version is now more standards-compliant
1090    o adjoint-related modifications
1091      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1092      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1093      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1094    
1095    checkpoint57e_post
1096    o Adding eddy stress controls a la Ferreira et al.
1097    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1098    
1099    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1100      update output.txt of exp. fizhi-gridalt-hs
1101    o add more "Z" dimensions and associated coordinate vars to MNC
1102    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1103    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1104      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1105      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1106      months and years.  Requires pkg/cal.
1107    o diagnostics: add pickup functionality
1108      - off by default for backwards compatibility
1109      - current version only uses MDSIO -- MNC will be added
1110    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1111    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1112    
1113    checkpoint57d_post
1114    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1115    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1116      output from the diagnostics package
1117    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1118    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1119      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1120    o add coordinate variables to the MNC output from the diagnostics package
1121    o change MNC-flags default value: true when useMNC=TRUE
1122    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1123      the ability (off by default) to read the grid information using MNC
1124    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1125    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1126    o do snap-shot diagnostics at the middle of the time-interval (instead of
1127      at the end).
1128    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1129      new test for AIM with thSIce + slab-ocean
1130    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1131    o move state variable diagnostics to the beginning of the time step ;
1132      (note: still needs some work specially for snap-shot diagnostics)
1133      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1134    
1135    checkpoint57c_post
1136    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1137    o generate new output.txt files on faulks with g77 & the new -ieee option
1138    checkpoint57c_pre
1139    
1140    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1141      update output.txt of exp. global_ocean.90x40x15
1142    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1143      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1144    o add saltFlux(+File) forcing capability with periodicExternalForcing
1145    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1146    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1147    o improvements for the MNC output from DIAGNOSTICS:
1148      - correct handling of the unlimitied dimension
1149      - all dims now have associated coordinate variables
1150      - variables located at U, V, and Corner ("Z") points are now written
1151        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1152        *all* data points are output
1153    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1154    o added pkg/seaice/seaice_monitor.F
1155    o mdsio_readfield.F can now read files visible only to master MPI process.
1156    o pkg/seaice: some test code for ice-modified ocean stress
1157    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1158      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1159      spurious negative numbers for precipitation and humidity.  Will cause
1160      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1161    o pkg/ctrl/
1162      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1163        May be enabled via doPackDiag
1164      *  introduce z-scaling of
1165         + gradient (doZscalePack) and
1166         + control (doZscaleUnpack)
1167    o pkg/mdsio/
1168      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1169      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1170    
1171    checkpoint57b_post
1172    o simplify options in diagnostics_fill arguments (remove weird combinations)
1173    o fix MNC coordinate variables so that they now contain per-face index
1174      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1175      general, EXCH2 grids are only aligned to a "local" coordinate system
1176    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1177    o Implement instantaneous output within pkg diagnostics:
1178      setting a negative frequency in data.diagnostics produces
1179     "snap-shot" output (as opposed to time-average if freq > 0)
1180    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1181      NOTE: change ptracer diagnostics name: use 2 characters to work with
1182            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1183    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1184      becomes the coordinate variable for the 'T' dimension
1185    o add CF-style coordinate variables to MNC
1186      - just a first cut:  numbers are meaningless on the cubesphere and
1187        missing along the T axis but otherwise it works!
1188    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1189    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1190    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1191      this is based directly on what the model compute, so that the content of
1192      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1193    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1194    o clean up build options files for SunOS, in particular
1195      - remove -traditional from xmakedepend
1196      - change -xarch=v9 to -xarch=native for f77
1197      - restore use of make (not gmake)
1198      - add CC=gcc if using g77
1199    o changes per discussion of AM, JMC, & EH3 today:
1200      - move redundant "grid" variables out of "state" -- in preparation of
1201        creating proper CF-style coordinate variables and in recognition
1202        that any/all grid variables can be easily copied (eg. w/NCO) from
1203        the grid files into any of the other NetCDF files
1204      - *always* output grid variables with MDSIO (this will eventually be
1205        changed)
1206      - output MNC grid file if useMNC is true
1207    o every instance of _END_MASTER() has been found and replaced with
1208      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1209      preprocessors
1210    o re-arrange diagnostics pkg initialisation:
1211     - allow each package to extend the available diagnostics list
1212     - add some checking and fix small problems (multi-threaded, ...)
1213     - new S/R diagnostics_fill (replace fill_diagnostics):
1214       look through the short list of active diag. (instead of the long list)
1215       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1216    
1217    checkpoint57a_post
1218    o this set of changes restores TAMC compatibility
1219      tested for global_ocean.90x40x15 adjoint on trough
1220      (what a pain)
1221    
1222    checkpoint57a_pre
1223    o some modifs in tools/build_options for sunos
1224    o call ctrl_pack for ctrl at end for optimcycle=0
1225    
1226    checkpoint57
1227    o add horizontal bi-harmonic viscosity for vertical velocity
1228      - new parameter viscA4W (defaults to viscA4)
1229      - affects only non-hydrostatic code
1230      - to be done: no-slip lateral boundary conditions
1231    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1232    o implement Implicit Vertical advection for pTracers
1233    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1234      (implemented also for implicit vertical diffusion & advection)
1235    o OBCS: extend application of tracer open boundary conditions
1236      to a strip beyond the boundary of width Olx/Oly
1237    o add call monitor to TAF set of required calls (flow directives)
1238      and include in natl_box_adjoint
1239    o untangle a few ifdefs related to cost, ctrl, autodiff
1240      untangel a few ALLOW_ECCO_OPTIMIZATION
1241    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1242      (theta2, salt2 in ecco_cost_weights)
1243    
1244    checkpoint56c_post
1245    o OBCS as control variables
1246      - update ctrl_ad_diff.list, obcs_ad_diff.list
1247      - remove balance of obcs controls from default
1248      - fix index bug nobcs in ctrl_init
1249      - fix dummy fields filen in ctrl_pack
1250      - add dummy weights for obcs
1251    o lsopt: comment out fort.94 output
1252    o optim:
1253      - remove unnecessary header files
1254      - adjusted namelists
1255      - add xerbla.F to Makefile
1256    o exf:
1257      - multiple modifications of exf_check_range
1258      - unit change in exf_init_runoff from [m/year] to [m/s]
1259    o mdsio:
1260      - i/o-vector change debugLevel from debLevA to debLevB
1261    
1262    checkpoint56b_post
1263    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1264      is called from DO_THE_MODEL_IO
1265      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1266      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1267      - clean up PTRACERS_WRITE_TIMEAVE a little
1268    o add another verification experiment that tests both the cfc-pkg and
1269      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1270      reactive tendencies treated inline with regular timestepping
1271    o testreport previously did a lousy job of comparing small numbers, so
1272      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1273      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1274      testreport.
1275    o ptracers_monitor: bug fix for MPI
1276    
1277    checkpoint56a_post
1278    o GCHEM: finish reorganizating the package
1279      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1280        (introduces another 3D-array for each passive tracer, but only if
1281        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1282        gchemTendency is not needed because the timestep is done separately)
1283      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1284      - GCHEM is now---more or less cleanly---separate from PTRACERS
1285      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1286        so clear to me how that should be done in a general way.
1287    o CFC: improve formatting of output in CFC_ATMOS
1288    o PTRACERS:
1289      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1290        that ALL experiments with ptracers enable can be checked. This makes
1291        GCHEM_MONITOR obsolete.
1292      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1293        monitorFreq
1294      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1295    o add PTRACERS (PTR0[1-5]) to testreport output
1296    o exf_check_range:
1297      * default changed to .TRUE.
1298      * will check values for niter0 if debLevA, every timestep if debLevB
1299      * STOP in exf_check_range if 'out of range'
1300      * range chosen generous to allow for potential extema
1301      TBD: a version with stricter range
1302           permitted range would be runtime parameters
1303    o GMredi:
1304      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1305      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1306      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1307    o GCHEM:
1308      - move call to GCHEM_FORCING_SEP, so that it is now called before
1309        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1310      - introduced a useGCHEM runtime flag and applied it everywhere.
1311      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1312        this flag is now only visible within GCHEM-pkg routines.
1313      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1314        be replaced by a 3D array that is computed before thermodynamics; for
1315        this, the tracer ID iTracer had to be included into the parameter list
1316        of ptracers_forcing
1317      - set up forward_step to call gchem_forcing, that will replace
1318        gchem_forcing_int in ptracers_forcing
1319      - cleaning up
1320    o small cleaning of exch2: remove files that are also in eesupp/src
1321    
1322    checkpoint56
1323    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1324    o mnc: cleanup "full" files--fixes out-of-memory problem
1325    o ECCO-GODAE
1326      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1327      * fully merged and updated from SIO code
1328        windstress sign change affects
1329        - exf_inscal_[u/v]stress
1330        - sign of xx_tau[u/v] adjustments
1331        - signs in cost_scat
1332      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1333      * natl_box_adjoint updated and compressed
1334      * 2-level checkpoint switch added
1335        (tested in EXP. 1 of natl_box_adjoint)
1336      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1337    o SVD
1338      * first complete, non-hacked version for SVD calculations
1339      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1340        performed via direct access files admtlm_vector.it????
1341        (via ctrl_[un]pack)
1342      * optimcycle is used for ARPACK iteration counter
1343        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1344      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1345        and add linear transforms where necessary
1346      * controls are initial/final SST, SSS (can be extended; need to check
1347        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1348    o mdsio: filename info to both stderr, stdout
1349    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1350      from sign change
1351    
1352    checkpoint55j_post
1353    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1354      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1355    o add consistent build directories and .cvsignore files to verification
1356    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1357    o make all subroutines 30 or less characters in length for certain older
1358      compilers to work (a thorough search only turns up two routines in
1359      pkg/ptracers)
1360    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1361      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1362    
1363    checkpoint55i_post
1364    o change arrays for total vertical diffusivity (2.D if explicit,
1365      3.D if implicit) ; each ptracer uses its own background value.
1366    o added mnc/NetCDF output capability to ocn_compon_interf
1367      - added bits to verification/cpl_aim+ocn so that it can run on
1368        ITRDA and other clusters without the mpirun "-wd" option
1369    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1370      configuration
1371    o give MNC the ability to create additional files rather than
1372      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1373      - the default is just less than 2GB which is a practical limit
1374        on many systems
1375    o Compute the non-local term using either KPP vertical diffusivity (=default)
1376       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1377    
1378    checkpoint55h_post
1379    o add verification test "vermix"
1380    o remove all the *_ioinc flags and replace with the single global
1381      outputTypesInclusive flag
1382    o allow to set a vertical profile of vertical diffusivity for T & S
1383    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1384    o useMNC moved from data.mnc to data.pkg
1385    
1386    checkpoint55g_post
1387    o Renaming carbon AD experiments to comply with testreport conventions
1388    o Updating adjoint of Held-Suarez hs94.1x64x5
1389    o Fixing directives for non-ECCO forward_step, after ECCO directives
1390      have been fixed to avoid recomp. of do_oceanic_phys
1391      Works well for global_ocean.90x40x15,
1392      but recomp. issue remains for carbon
1393    o Updating adjoint output for natl_box_adjoint after
1394      pkg/ecco has been modified (see taga c55d_post)
1395    
1396    checkpoint55f_post
1397    o rename to timeave_init_fixed
1398    
1399    checkpoint55e_post
1400    o some delicate re-shuffle of store directives to avoid one
1401      extra call of do_oceanic_physics
1402      affects ecco_the_main_loop.F, do_oceanic_physics.F
1403      checkpoint_lev1_directives.h
1404    o NB: this may break global_ocean adjoint temporarily,
1405      but it is clear how to fix it. Will do later, need this now.
1406    
1407    checkpoint55d_post
1408    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1409    o ecco_cost_weights is modified to 1x1 runs
1410    o modifs to allow observations to be read in as
1411      single file or yearly files
1412    o enable to read exf forcing fields as either
1413      single file or yearly files (flag useExfYearlyFields)
1414    checkpoint55d_pre
1415    
1416    o switch between 2-level and 3-level checkpointing
1417    o add ability of MNC to write local and "partial" (eg. 2D slices where
1418      the full 3D field is never actually stored) arrays to NetCDF files
1419      with the correct (that is, the complete multi-dimensional) set of
1420      array indicies
1421      - used in mom_vecinv() to write the diagFreq output
1422      - tested (demonstrated) in verification/aim.5l_cs
1423    o further mnc-ification
1424      - add verification/lab_sea to the list with mnc setups
1425      - fix undefined mnc v-names in cd_code
1426      - add kpp to mnc output (both snapshot and timeave)
1427    o non-hydrostatic code
1428      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1429        in calc_gw.F
1430      - defaults to viscAh
1431      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1432        friction or Leith) in non-hydrostatic mode, as long as there is
1433        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1434    o pkg/cost
1435      extend simple cost functions to treat time mean quantities
1436      (T,U,V) via cost_accumulate_state from cost_tile
1437    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1438        be 2 times larger than the minimum size the advection scheme requires.
1439        now get a perfect conservation of salt in advect_cs test-exp (updated)
1440    o GGL90 (Gaspar's TKE mixed layer)
1441      - add horizontal diffusion of TKE, requires exchanges in
1442        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1443        default. In OPA there is no horizontal diffusion of TKE but the
1444        mixing coefficients are computed from a horizontal average of TKE of
1445        6 points or so. I think that diffusion has a little more physical
1446        justification.
1447      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1448        was in vain)
1449      - mask tke-variable in ggl90_init
1450    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1451    o fix biharmonic diffusion on CS-grid.
1452    o more obcs stuff
1453      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1454        for reading boundary values. This routine is called from
1455        obcs_prescribe_read
1456      - updated obcs_check
1457      - changed sponge layer relaxation parameter units for days to seconds
1458      - turned off sponge layer by default
1459      - changed argument list of OBCS_CALC to myTime+deltaTclock
1460      - fixed about 35 bugs in obcs_external_fields_load
1461    
1462    checkpoint55c_post
1463    o obcs stuff
1464      - new runtime flags useOBCSprescribe, useOBCSbalance
1465      - re-arranged obcs_calc
1466      - moved exf_getobcs to obcs_prescibe_read
1467        obcs_prescibe_read is called after ORLANSKI stuff
1468        and independent of it (executable can contain all).
1469      - updated obcs_check
1470      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1471        These may be necessary only if tangential velocities are
1472        prescribed at OB, not sure, needs testing.
1473    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1474      which simplifies the calls and passes the ifc check-bounds test
1475    
1476    checkpoint55b_post
1477    o add a 2D scalar, Z location, exchange_2 routine.
1478    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1479      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1480      affects advect_cs results (for the wrong reason): update output.txt
1481    o use a more standard discretization for biharmonic viscosity ;
1482     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1483      affects results of dome set-up: update output.txt
1484    o fix gad_advection.F (CubedSphere part), back to version 1.23
1485    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1486    
1487    checkpoint55a_post
1488    o merged code to
1489      * prescribe/read time-dependent open boundaries
1490        (works in conjunction with exf, cal)
1491      * sponge layer code for open boundaries
1492      * each boundary N/S/E/W now has its own CPP option
1493        (healthy for the adjoint)
1494    
1495    checkpoint55
1496    o up-to-date adjoint of previous breaks
1497      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1498      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1499      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1500      - carbon: * remove tr1-related adjoint verification
1501                * add ptracer as control variable
1502    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1503      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1504    
1505    checkpoint54f_post
1506    o in verification/carbin/ remove experiment related to
1507      ALLOW_PASSIVE_TRACER (array tr1 etc)
1508      code_ad/ input_ad/ results_ad
1509    
1510    o add two new packages
1511      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1512        + subject to optimization (memory)
1513      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1514        + subject to reordering (many GOTOs in the original code)
1515        + so far opps is called for every (i,j) point, and then operates in
1516          the vertical; one may want to reorder the scheme in order operate in
1517          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1518          fields)
1519    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1520      - all verification tests compile and run with linux_ia32_g77
1521      - defaults are compatible with current input files--nothing
1522        should change if you were not previously using MNC
1523      - MNC output has been added in numerous places (eg. timeave)
1524        but there are still a few writes not yet do-able with MNC
1525        (this is in progress)
1526      - flags now allow for either/or/both use of MDSIO and MNC and
1527        documentation will soon follow
1528      - numerous small formatting cleanups for ProTeX
1529    o add version info (via BUILD_INFO.h) to MNC and stdout
1530    
1531    checkpoint54e_post
1532    o add two new packages
1533      - pp81 (Packanowski and Philander, 1981), Richardson number and
1534        stratification dependent mixing
1535      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1536      - these scheme operate in a similar manner as KPP (without ghat, of
1537        course), however there is only one diffusivity that is used for both
1538        temperature and salinity (and passive tracers)ç
1539    o add offline package
1540    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1541      provided by Stephanie Dutkiewicz
1542    o genmake2: add ability to search for C compilers and cleanup test output
1543      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1544    
1545    checkpoint54d_post
1546    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1547    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1548      leading to additional shift by 5 days each year of integration
1549       (i.e. leading to considerable offset over the years)
1550    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1551    o start with no AB and no initial filtering (staggerTimeStep):
1552      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1553    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1554      (external loading & cpl import/export stay in forward_step.F)
1555    o update coupling interface to work with new staggerTimeStep
1556    o change MDSIO ptracers_pickup.
1557    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1558    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1559    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1560    
1561    checkpoint54c_post
1562    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1563      this affects (truncation error) output.txt of test-exp:
1564       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1565    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1566    o change Qnet to always be the net heat flux, (+upward).
1567      affects (truncation error) output of natl_box exp.: updated
1568    o define the max number of passive tracers in PTRACERS_SIZE.h
1569    o start to test mnc routinely in exp0
1570    o add sea-ice loading (sIceLoad) as a new forcing field.
1571    
1572    checkpoint54b_post
1573    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1574       impressive on Altix and Opteron systems)
1575    o diagnostics can now write NetCDF files through the mnc package
1576    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1577    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1578    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1579      affects (truncation error) output of lab_sea & natl_box exp.: updated
1580    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1581    
1582    checkpoint54a_post
1583    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1584    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1585    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1586    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1587      + internal_wave (shift in writing cg2d_ini_res)
1588    checkpoint54a_pre
1589    
1590    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1591      - modified verification/lab_sea and natl_box_adjoint accordingly
1592    
1593    checkpoint54
1594    checkpoint53g_post
1595    o prepare splitting of thermodynamics: store convect.counter in common block
1596    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1597      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1598    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1599    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1600    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1601    o restore adjointability
1602    
1603    checkpoint53f_post
1604    o modifications that affect AIM experiment results (update output.txt):
1605      - no advection of S at top interface Nr (pkg/generic_advdiff)
1606      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1607    o AIM pkg:
1608      - include stability function into surf.Flux derivative relative to Tsurf
1609      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1610    
1611    checkpoint53e_post
1612    o merged cylindrical coord configuration
1613    o added rotating_tank experiment
1614    checkpoint53e_pre
1615    
1616    checkpoint53d_post
1617    o faulks upgraded: re-generate output.txt that have changed:
1618       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1619    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1620    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1621    o added Sadourny discretization of Coriolis
1622      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1623      - re-enabled use of omega3 (useAbsVorticity)
1624    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1625      vector-invariant equations
1626      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1627    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1628      hopefully without new bugs
1629      - still to do: biharmonic friction for non-hydrostatic w
1630    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1631    o regenerated output for global_ocean_ebm (using -ieee)
1632    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1633      of mom_common/
1634      - simple re-arrangement of instructions within computing loop
1635    checkpoint53d_pre
1636    
1637    checkpoint53c_post
1638    o new version of coupler for AIM+thSIce and Ocean models
1639     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1640     - land: change Evaporation of snow
1641     - aim with thSIce: fix bug in snow-precip.
1642    o changes to calc_gw.F
1643     - bug fix for w^2 term near the bottom boundary
1644     - (hopefully) improve the lateral slip boundary condtions for use with
1645        partial/looped cells
1646      - because the bug fix changes two verification experiments anyway (exp5
1647        and plume on slope), change the lateral boundary condition from half slip
1648        to the value of no_slip_sides
1649    o ebm package wasnt quite up to the parallel task. Fixed that.
1650    o Adjoint of EBM package + verification
1651      * TLM OK
1652      * ADM not sufficient accuracy yet (needs further testing)
1653    
1654    checkpoint53b_post
1655    o Commiting new energy balance model to repository
1656      * package is pkg/ebm
1657      * verif. is verification/global_ocean_ebm
1658      * references are in ebm_driver.F
1659    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1660    C        Global thermohaline circulation. Part I:
1661    C        Sensitivity to atmospheric moisture transport.
1662    C        J. Climate 12(1), 71-82
1663    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1664    C        Global thermohaline circulation. Part II:
1665    C        Sensitivity with interactive transport.
1666    C        J. Climate 12(1), 83-91
1667    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1668    C        Destabilization of the thermohaline circulation
1669    C        by atmospheric eddy transports.
1670    C        J. Climate 7(12), 1870-1882
1671    o Will need long integration testing.
1672    checkpoint53b_pre
1673    
1674    o created pkg/mom_common in preparation for variable viscosity code
1675    o renamed and split ini_mnc_io
1676    o pkg/land: only liquid water can diffuse or run-off
1677    o AIM using land: soil wetness availability account for snow
1678    o added printMapIncludesZeros to EEPARMS namelist
1679    
1680    checkpoint53a_post
1681    o restore TAMC compatiility for exf_constants.h
1682      (no usage of _d in .h)
1683    o Additional storing in KPP in an attempt to fix
1684      TAMC problem with adjoint of KPP code.
1685      (no success...)
1686      Identical code works fine with TAF.
1687    o Fixed verification/natl_box_adjoint experiments.
1688      Initial conditions for Experiments 4 and 5 are now
1689      set to "SEAICE_initialHEFF=0", which is more reasonable,
1690      and hence gives results closer to that of Experiment 2.
1691      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1692    
1693    checkpoint53
1694    o stable checkpoint with up to date adjoint
1695      TLM tests only run for 1st grdchk at the moment. Its unclear if
1696      this is a code problem or a problem with resetting code for g_
1697      variables that is being autogenerated wrong.
1698      Otherwise:
1699       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1700       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1701         are both still in chaos following their security messes.
1702    
1703    checkpoint52n_post
1704    o various build (mostly genmake2) changes including:
1705      - ability to build/run more easily within Cygwin and MacOS X
1706      - more complicated Makefiles with a stronger dependence on Gnu Make
1707    o pkg/seaice modifications
1708      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1709        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1710        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1711      - changed proxy for geostrophic velocity and updated
1712        verification/lab_sea/results/* accordingly
1713      - removed ADI dynamic solver from pkg/seaice
1714      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1715        they caused a segmentation fault under certain circumstances
1716      - removed unused field WATR
1717    o bug fix in exf-package:
1718      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1719         now reflect that.
1720    o small fixes in the cal-package:
1721      - set reference date to first of January for the 'model'-calendar
1722      - failing of cal_CheckDate in cal_FullDate now actually results in a
1723        warning
1724    o small modifications in exf-package to increase flexibility:
1725      - change climtempfreeze from a constant to a runtime parameter that
1726        is specified in data.exf_clim (default = -1.9)
1727      - introduce runtime parameter windstressmax (default = 2.0) that is
1728        specified in data.exf
1729    o fix in pkg/thsice:
1730      - update Evap (Tsf changes) to be consistent with Latent heat flux
1731      - maintain snow precipitation unchanged (even if Tsf >=0).
1732     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1733    
1734    checkpoint52m_post
1735    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1736      this does not change any of the results, because myIter=0 in swfrac always
1737      lead to jwtype=2 (the default anyway), but the call makes little sense
1738      as a default
1739    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1740    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1741      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1742    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1743    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1744    o extending useSingleCpuIO option to work with new exch2 I/O format
1745      - old-style, missing-tile I/O is still accessible by defining CPP
1746        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1747    o monitor package can write to NetCDF files and/or STDOUT
1748    o fix re-definition bug in MNC_GRID_INIT_ALL()
1749    o doc/api_reference added
1750      - a framework for building an API Reference Manual using all
1751        the "protex" comments embedded in the code
1752      - see pkg/generic_advdiff, pkg/mnc for examples
1753    o MNC:
1754      - make myThid the last argument for all subroutines
1755      - new default for the grid files: NO halos
1756      - add useMNC and other run-time flags
1757      - separate per-file-group handling of the unlimited dimension
1758      - early initialization of MNC w/ flags read at the eeboot stage
1759        and lookup tables set in initialize_fixed
1760      - write all MNC output to a freshly-created directory
1761    o thermodynamics sea-ice (thsice) is now tested with testreport.
1762    o test exp. advect_cs: use the standard cs32 grid ; update output.
1763    o Added functionality to grdchk:
1764      pick global i,j,k position (or nearest wet) where to perform check.
1765    
1766    checkpoint52l_post
1767    o new land formulation:
1768      a) use ground enthalpy as prognostic variable to ensure exact
1769         energy conservation.
1770      b) account for water temperature and for latent heat of freezing
1771         in all processes (rain, run-off, ground storage)
1772      c) compute surface and ground temperature implicitly.
1773    o aim_v23 modification for new land model:
1774      a) Treat separately land / ocean / sea-ice surface fluxes
1775         to allow implicit computation of land & sea-ice surface temp.
1776      b) add snow precipitation.
1777    checkpoint52l_pre
1778    
1779    o fix problem (when 1 tile is empty) in min/max monitor.
1780    o fix bug in timeAve (u,vZetatave in common block)
1781    o no restoring terms under ice for pkg/seaice
1782    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1783    o bug fix for pkg/seaice pickups
1784    o change MNC call locations and add coordinate attributes
1785    o mask vorticity at the corner ; affects global_ocean.cs output
1786    o fix ini_curvilinear_grid ; test CS experiments with mpi
1787    o aim.5l_cs: modify sea-ice fraction input file ; update output
1788    o exf: Adding simple range check routine for exf fields after read
1789    
1790    checkpoint52k_post
1791    o removed top-level directory "diags"
1792      - we migrated these functions to pkg/timeave a long time ago
1793    o fixed bug introduced in pkg/monitor
1794    o accuracy ctrlprec = 32 insuffient for gradient checks using
1795      averaged fields (I/O via cost_averages)
1796      -> use ctrl.h in active_file*.F to control I/O precision.
1797    o paramter list of CALL ADTHE_MAIN_LOOP
1798    o added initial do_the_model_io to ecco
1799    o set all ...Freq to zero after cost_final
1800      taveFreq, dumpFreq, pChkptFreq
1801    o MAIN and ECCO differentiability restored
1802    
1803    checkpoint52j_post
1804    o fix nchklev in tamc.h for global_ocean...
1805    o Bringing flow and store directives up-to-date
1806    o Really weird thing!
1807      call do_the_model_io from the_main_loop with parameters
1808      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1809      TAF places a faulty re-call of initialise_varia
1810      after cost_final call which should not be there!
1811    checkpoint52j_pre
1812    
1813    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1814      error messages
1815    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1816    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1817      debug output
1818    o modfied mdsio_writefield.F to handle non-global files under exch2
1819    o update AIM Cubed-Sphere exp (aim.5l_cs):
1820      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1821    o update AIM Equatorial Channel exp:
1822      use standard aim_v23 pkg and change the SST fields to be more realistic.
1823    o globalFile now works with exch2
1824    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1825      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1826    o limit timeave output for hi-res integrations
1827    
1828    checkpoint52i_post
1829    o removed CPP_EEOPTIONS.h from verification/*/code
1830    o updated the tiling for global_ocean_pressure
1831    checkpoint52i_pre
1832    
1833    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1834      the old pkg/aim).
1835    
1836    checkpoint52h_pre
1837    o shortened offending lines in exch2_send_rx?.template
1838    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1839    o genmake2: add build & execute test for NetCDF code
1840    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1841      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1842    o added useSingleCPUIO flag to monitor.F and mon_out.F
1843    o added temporary hack for sea-ice dynamics on the cube:
1844      metric terms are ignored and it is assumed that
1845      there is no sea-ice on cube faces 1, 2, 4, and 5.
1846    
1847    checkpoint52f_post
1848    o added exch2 cube routines to pkg/exch2
1849    o modified hs94.cs-32x32x5 to use it
1850    o added new grid files to hs94.cs-32x32x5
1851    checkpoint52f_pre
1852    
1853    checkpoint52e_post
1854    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1855      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1856    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1857      to work with implicit vertical advection and AB ;
1858    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1859    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1860     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1861    checkpoint52e_pre
1862    
1863    o fix bug in impldiff when Nr=1 or Nr=2.
1864    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1865    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1866    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1867      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1868    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1869    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1870    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1871    
1872    checkpoint52d_post
1873    o re-tiled many expts to allow comparison in multi-processor mode
1874      - updated output accordingly
1875      - changed hs94.128x64x5 to use intial T from file rather than use the
1876        random number generator
1877    o add infrastructure in model routines for fizhi and gridalt packages
1878    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1879    o changes to permit hi-res, cubed-sphere, configuration
1880      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1881      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1882      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1883        of surface winds for the cube
1884      (A verification experiment, based on global_ocean.cs32x15, but with
1885       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1886       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1887       complete with example surface forcing files and matlab scripts to look
1888       at the output and compare it with that of global_ocean.cs32x15.)
1889    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1890       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1891       to conform to the common rule.
1892    o check-in the first version of the coupler + interfaces for multi-components
1893       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1894       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1895       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1896       - ocean and atmos. share the same horizontal grid (no interpolation).
1897       - exchanges between component and coupler is done in forward_step
1898    o new verification experiment, cpl_aim+ocn:
1899       coupled ocean - AIM atmosphere on cs32 grid.
1900    
1901    checkpoint52d_pre
1902    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1903    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1904    
1905    checkpoint52c_post
1906    o Fixing OPTIONS files for use of exf:
1907      - ALLOW_ECCO not needed
1908      - ECCO_CPPOPTIONS.h should not be included from
1909        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1910        as has been the case in the past
1911      - All cal/exf related options are currently set in
1912        single header file. Should remain so until we
1913        agree on a consistent new policy.
1914    o Removed all CPP options for cal package.
1915      cal has no more CPP options.
1916    o modified STOREs in GAD_ADVECTION
1917    o corrected key comp. for passkey
1918    
1919    checkpoint52b_post
1920    o new version: "thsice" of thermodynamic sea-ice pkg:
1921     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1922     - modify fluxes but do not change theta directly;
1923     - light cleaning of bulk_force pkg (still needed with thsice).
1924     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1925       + output_thsice.txt to test thsice & bulk_force pkgs.
1926    o put back grid & coriolis monitor output.
1927    checkpoint52b_pre
1928    
1929    o call "do_the_model_io" at the beginning (=> dump initial state)
1930    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1931    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1932      (need info on NUMBER_OF_PTRACERS)
1933    o missing PTRACERS headers in some routines
1934    o default tamc.h in pkg/autodiff supposed to crash
1935      to ensure proper customization
1936    
1937    checkpoint52a_post
1938    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1939      - moved surfaceTendencyTice from pkg/seaice to main code
1940      - subroutine FREEZE_SURFACE now limits only surface temperature
1941        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1942        => new output.txt for global_ocean.cs32x15 & global_with_exf
1943      - keep the old version of FREEZE for backward compatibility;
1944        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1945      - corresponding modifs for TAF directives
1946    o added surface flux output variables to TIMEAVE_STATVARS
1947    o time-averaged output for pkg/ptracers
1948    o fix problem with ECCO-related divided adjoint
1949      snapshot file was missing some ad-variables,
1950      but no warning issued by TAF
1951    
1952    checkpoint52a_pre
1953    o some bug fixes for #undef REAL4_IS_SLOW
1954    
1955    checkpoint52 = ecco_c52_e35
1956    o after testing adjoints of checkpoint51u_post
1957    
1958    checkpoint51u_post
1959    o this is the post-merge tag of the ecco-branch
1960      (needs another clean checkout and re-testing)
1961    o various natl_box_adjoint configs and results
1962      but no input fields
1963    o obcs adjoint not yet merged!
1964    o adding ECCO global 1x1 and 2x2 degree configs
1965    o updated/extended some store directives for seaice
1966    o pkg/ecco now containes ecco-specific part of cost function
1967    o top level routines the_main_loop, forward_step
1968      supersede those in model/src/
1969      previous input data.cost now in data.ecco
1970      (new namelist ecco_cost_nml)
1971    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1972    
1973    checkpoint51t_post
1974    o this is the pre-merge tag of the ecco-branch
1975    
1976    checkpoint51s_post
1977    o cleanup: removed various obsolete #define-s
1978    o pkg/grdchk
1979      - renamed 'ph-grd 3' to 'grad-res'
1980      - merged from ecco-branch
1981        (remaining bug fixes for obcs gradient checks)
1982      - additional high-precision output for testreport
1983        (grep for 'precision_grdchk_result')
1984    
1985    checkpoint51r_post
1986    o cleaned up or removed CPP_OPTIONS.h files
1987    o updated results for some of the tests to reflect the new
1988      optfiles (-ieee: -O0 instead of -O3)
1989    
1990    checkpoint51q_post
1991    o cd_code:
1992      - moved cd_scheme.F -> cd_code_scheme.F
1993      - separate read_checkpoint from cd_code_ini_vars.F
1994      - separated cd_code part from write_checkpoint
1995      - updated AD_SOURCE, generated .flow
1996      - added CD_CODE_VARS.h to the_main_loop
1997      - Moving cd_code specific store dir.s to pkg/cd_code
1998    o ctrl package totally restructured
1999      - pack/unpack now optional and decoupled from
2000        xx_/adxx_ I/O
2001      - ctrl_pack/unpack cleaned
2002        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2003      - confined inclusion of AD_CONFIG.h to where necessary.
2004    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2005    
2006    checkpoint51p_post
2007    o create initial cd_code package
2008      - WARNING: the initialization of fields within packages
2009        is broken because INI_FIELDS (where READ_CHECKPOINT is
2010        called) is called *before* PACKAGES_INIT_VARIABLES.
2011        This seems to be backwards since
2012        1) its important to initially zero the entire field including
2013           the "halo" region
2014        2) zeroing needs to be done *before* reading pickup info
2015           and the pickup call might or might not happen in any
2016           particular run
2017      - this needs an overhaul for R2
2018    o cleanup verification/*/code/GMREDI_OPTIONS.h
2019    o cleanup testreport
2020    
2021    checkpoint51o_post
2022    o bringing AD-related verif's up to date with genmake2
2023      - carbon/
2024      - global_ocean.90x40x15/
2025      - hs.94.1x64x5/
2026      - (front_relax/ )
2027    o (more) consistent directory structure for AD-related verif.'s
2028    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2029    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2030    o bug fix in find_alpha.F for MDJWF:
2031      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2032        change rho -> rho-rhoConst
2033      - replace call find_rho to find_rhonum
2034    o initialisation of rFlx extended to full array (required by TAF)
2035      and shifted to thermodynamics
2036    o removed PTRACERS.h in ptracers routine
2037    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2038    o Correcting initialisations for fVerU, fVerV.
2039    o helping TAF to recognize dependency on kUp for
2040      fVerU, fVerV
2041    o Replacing delZ by delR in pkg/ctrl/
2042    checkpoint51o_pre
2043    
2044    o undid all of cp51 pending some cleanups and discussion
2045    o added the [#include "AD_CONFIG.h"] statement to all files that need
2046       it for adjoint/tl #defines
2047     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2048     o removed tools/genmake since it no longer works
2049    
2050    checkpoint51n_post
2051    o modifications to make FREEZE flux visible to pkg/kpp
2052      - moved surfaceTendencyTice from pkg/seaice to main code
2053      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2054      - subroutine FREEZE now limits only surface temperature
2055        (this means new output.txt for global_ocean.90x40x15,
2056         global_ocean.cs32x15, and global_with_exf)
2057    o added surface flux output variables to TIMEAVE_STATVARS
2058    
2059    checkpoint51n_pre
2060    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2061    o added [#include "AD_CONFIG.h"] to all files that use the following
2062      defines:
2063      - ALLOW_ADJOINT_RUN
2064      - ALLOW_TANGENTLINEAR_RUN
2065      - ALLOW_ECCO_OPTIMIZATION
2066    
2067    checkpoint51m_post
2068    o incorporating changes to get TAMC/TAF working in genmake2
2069      - added new TAMC/TAF targets to the Makefile
2070      - various cleanups related to package handling
2071      - these changes should have no impact on the forward model
2072    
2073    checkpoint51l_post
2074    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2075     - faster algorithm for cal_addtime.F
2076     - higher precision arithmetic, where needed
2077     - pkg/exf *startdate variables changed from calendar date to
2078       model integration time
2079    
2080    checkpoint51l_pre
2081    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2082    o enable to apply restoring on S & T only in a latitude band.
2083    o update output (external_forcing_surf modif. change truncation errors)
2084       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2085    
2086    checkpoint51k_post
2087    o change default to: useNHMTerms=.FALSE.
2088     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2089       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2090     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2091        exp1, ideal_2D_oce
2092     - change data file of oceanic exp (leave the results unchanged for now)
2093       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2094    o set gravitySign automatically according to the vertical coordinate used
2095      (and change sign: back to "logical" value: +1 when R increases downward)
2096    o added an include barrier to the default CPP_OPTIONS.h and
2097      removed the #include "PACKAGES_CONFIG.h" from it
2098    o fix a bug in mom_fluxform (from chk51j_post)
2099    
2100    checkpoint51j_post
2101    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2102    o adjusted some flow directives (dynamics, thermodynamics)
2103    o added cubed-sphere case to test cost function
2104    o heckpoint_lev?_directives.h now include
2105      pkg-specific directives, whenever those are enabled.
2106    o Moving pkg-specific flow directives to corresponding pkg
2107      Moving pkg-specific differentiation list to corresponding pkg
2108      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2109      ---> conventions are
2110           - pkg_ad.flow
2111           - pkg_ad_diff.list
2112           - pkg_ad_check_lev?_dir.h
2113    
2114    checkpoint51i_post
2115    o merge of the branch-genmake2
2116      - knowingly breaks the older genmake
2117      - automatic generation of all ALLOW_${PKG_NAME} defines
2118      - new testreport supersedes older testscript
2119    o large number of package inclusion and header cleanups
2120    checkpoint51i_pre
2121    
2122    o new output for adjoin of global ocean vector invariant
2123    o fix for checkpoint of thermodynamic seaice and bulk_force
2124    o Steph gchem various cleanups
2125    
2126    checkpoint 51h_pre
2127    o fixed some single quotes
2128    o modify gchem pkg to be more versatile
2129    o modifications to clean up dic pkg
2130    o add pkg/cfc
2131    
2132    checkpoint51g_post
2133    o provide links for ARPACK and ADM*TLM
2134    o start removing verification/vero/
2135    o update AD-related stuff
2136      (in particular some IF-statements in model/src/ routines)
2137    o adding to verification/global_ocean.90x40x15/ adjoint of
2138      vector invariant setup
2139    
2140    checkpoint51f_post
2141    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2142    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2143      of tracer Green's fucntions for ocean inversion project.
2144    
2145    checkpoint51f_pre
2146    o Added on-the-fly spatial interpolation capability
2147        "USE_EXF_INTERPOLATION" to pkg/exf.
2148      - This is a temporary Cartesian-grid hack until
2149        the super-duper ESMF coupler becomes available.
2150      - See verification/global_with_exf/README for usage example.
2151      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2152        flags and modified pkg/seaice accordingly.
2153    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2154        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2155        non-local transport term.
2156    
2157    checkpoint51e_post
2158    o pkg/mom_vecinv:
2159      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2160      - add time-ave diagnostic of vorticity advection.
2161    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2162    o atmospheric geopotential: - include water vapor effect;
2163                                - use p^kappa in p* scaling.
2164    o land pkg: read initial state from files.
2165    o AIM : add stratospheric drag in the upper level
2166    
2167    checkpoint51d_post
2168    o change function ILNBLNK (=> last non-blank char.) to return zero
2169      (instead of the string length) when the string. char is empty
2170    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2171    o modif's to restore TAMC compatibility
2172      - avoid "_d" constructs in PARAMETER declarations
2173      - avoid interrupting lines by comment lines
2174    o Use cluster local disks for purely local I/O
2175      vs. globally visible disks needed for ctrl stuff
2176      (merged from ecco-branch)
2177      - new active_file_loc... and mdsio_..._loc routines
2178      - affected packages: autodiff, ctrl, grdchk, mdsio
2179    
2180    checkpoint51c_post
2181    o introducing integer flag debugLevel
2182      - debLevZero: suppress all output
2183      - debLevA: standard
2184      - debLevB: equivalent to current debugMode=.TRUE.
2185    o introducing pathname variable mdsioLocalDir for mdsio
2186      that can be specified at runtime
2187      (relevant for cluster I/O to local disk)
2188    `
2189    >>>checkpoint51b_post
2190    adjoint of ptracers
2191    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2192    o extended state in checkpoint_lev?, etc.
2193    o alternative ctrl/cost with tr1 or ptracer
2194    o new comlev1_bibj_ptracers
2195    o new ptracers.flow
2196    o made ptracers_forcing same as external_forcing_s
2197    o added verification for adjoint with ptracers
2198      - adm. grdchk fail so far
2199      - tlm. grdchk OK
2200      - checked tapelev/comlev recomputations: OK
2201    <<<checkpoint51b_pre
2202    
2203    checkpoint51a_post
2204    o added code for biogeochemistry package
2205      - new pkgs: dic, gchem
2206      - new subroutine in ptracers
2207    o modify code for biogeo packages
2208      - in model/src and pkg/ptracers
2209    
2210    checkpoint51
2211    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2212      - autodiff, ctrl, exf, grdchk, seaice
2213      kept separate packages
2214      - cost, ecco, obcs
2215    o updating verification/internal_wave, verification/lab_sea
2216      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2217    
2218    checkpoint50i_post
2219    o Preparing next differentiable checkpoint and sync
2220      of MAIN vs. ecco-branch
2221      - 1st step: this one is differentiable
2222      - 2nd step: next(! not this) checkpoint will have updated packages
2223                  from ecco-branch)
2224    
2225    checkpoint50h_post
2226    o new package "land": provide surface BC for AIM.
2227    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2228    o AIM: use true log-P extrapolation for near surface temp (= as in
2229        F.Molteni paper) ; update aim.5l_cs output.
2230    o New variable in PARM03 for more flexible pickups
2231    o somewhat cleaned package initialisation sequence for
2232      ctrl/ cost/ ecco/ in packages_... routines
2233    
2234    checkpoint50g_post
2235    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2236      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2237      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2238        made the default because of faster convergence than ADI
2239    
2240    checkpoint50f_post
2241    o exf totally restructured
2242      - replaced all exf_set_ routines by one generic exf_set_gen.F
2243        and made sure it's still differentiable
2244      - split exf_getffields.F into new exf_bulkformulae.F
2245      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2246      - updated adjoint/makefile and relevant verif. accordingly
2247    
2248    checkpoint50f_pre
2249     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2250          + change Evap over land. (update aim.5l_cs output)
2251     o added missing .cvsignores and made uniform across expts
2252     o changed configuration of tidal_basin_2d expt
2253     o added pkg/debug functions for tracing code in fatal crashes
2254     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2255     o new fn in pkg/monitor to stop model if solution grows too big
2256     o removed lots of single quotes from comments
2257    
2258    checkpoint50e_post
2259    o make KPP work with PTRACERS
2260     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2261       nearly a copy of kpp_transport_s
2262     - there is no analogue to SurfaceTendencyS, so I have to use
2263       gPtr(of the surface layer) instead
2264    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2265    checkpoint50e_pre
2266    
2267    checkpoint50d_post
2268    o change kpp output from multiple-record state files to single-record state
2269      files analogous to write_state.F
2270    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2271      analogous to the cg2d-related output.
2272    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2273      so that writing to internal file fn (with length 512) fails.
2274    checkpoint50d_pre
2275    
2276    checkpoint50c_post
2277    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2278    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2279    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2280    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2281    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2282    
2283    checkpoint50c_pre
2284    Merging from release1_p13:
2285    o bug fix for pkg/seaice dynamic solver
2286    o Added SEAICE_initialHEFF to pkg/seaice
2287    
2288    checkpoint50b_post
2289    o store u*,v* in gU,V instead of in guNm1,gvNm1
2290    o in order to put the momForcing out of the Adams-Bashforth:
2291      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2292      to timestep.F
2293    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2294    o re-generate output for highly sensitive test-exp:
2295       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2296    
2297    checkpoint50b_pre
2298    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2299    o corrected CPP option mismatch in exf_Bulk... functions for case
2300      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2301    
2302    checkpoint50a_post
2303    o Bug fix for merging between c50 and KPP.
2304      ikey was passed from thermodynamics to kpp_calc via
2305      common block rather than being recomputed in kpp_calc,
2306      in contradiction with new key itdkey.
2307      New key ikppkey created, and tamc.h headers updated.
2308    
2309    checkpoint50
2310    - 2nd step of merge with ecco-branch:
2311      merge changes in ecco-branch back into main trunk
2312    - bug fix in find_alpha
2313    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2314    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2315    - merged some sliced AD support routines
2316    
2317    checkpoint49
2318    merged from ecco-branch:
2319    o exf:
2320      - Enable initialisation of forcing fields to constant
2321        (runtime) values.
2322      - in exf_getffields.F
2323        Reduce i-/j-loop to interior domain, discarding overlaps.
2324        That also fixes wrong TAF-key computations for key_1, key_2
2325        with bulf formulae.
2326      - exf_init.F modify #ifdef for exf_init_evap
2327      - exf_getffieldrec.F, ctrl_getrec.F
2328        The following INT-usages are not safe:
2329          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2330          fldcount = int(fldsecs/fldperiod) + 1
2331        and were modified.
2332    o autodiff: checkpoint_lev...
2333      - updated storing for bulk formulae (some arrays were missing)
2334      - added state for seaice package
2335      - synchronized with main branch
2336    o DIVA:
2337      Modif.s in
2338      - the_main_loop.F
2339      - the_model_main.F
2340      and added cost_final_restore.F cost_final_store.F
2341      o With these changes, it is possible to fully separate
2342        the first forward run to compute the cost function (mdthe_main_loop)
2343        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2344        into separate model executions.
2345        This enables better tuning of DIVA to given queue sizes.
2346      o Loss of cost function value in consecutive DIVA runs is
2347        fixed by storing to 'costfinal' file.
2348      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2349        beginning/end of adjoint integration is accounted for.
2350      The current changes apply to TAF-1.4.26.
2351      TAF has one remaining bug, requiring one manual change
2352      (see MITgcm manual).
2353    o cal: synchronized between MAIN and ecco-branch
2354    
2355    checkpoint48i_post
2356    o Changes to restore differentiability of code w.r.t. previous tag
2357      (mostly adding new routines to make list and replacing
2358      pressure by totPhiHyd).
2359    o Updated and merged grdchk package
2360      - has both ADM and TLM checks
2361      - works for single- and multi-proc.
2362      - output cleaned
2363      - worked successfully for parallel DIVA
2364    o genmake:
2365      - Adding -platform=SP4
2366      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2367    o Modif. for DIVA:
2368      ctrl_unpack should not be called in intermediate DIVA interval.
2369      (similar thing would apply for active files such as
2370      tbar, sbar, psbar, which should not be reinitialised;
2371      only relevant for ecco-branch)
2372    
2373    checkpoint48h_post
2374    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2375    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2376    o Added SEAICE_initialHEFF to pkg/seaice
2377    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2378    
2379    checkpoint48g_post
2380    --- EOS:
2381    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2382      store total Potential in totPhyHyd for diagnostics & EOS.
2383    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2384    --- Pressure/geopotential gradient:
2385    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2386    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2387      ( changes results of global_ocean_pressure )
2388    o NLFS + z-coord.: add eta*Rho' contribution.
2389    o accurate phiHyd when using interface-W at the middle between 2 centers
2390     ( changes results of ideal_2D_oce )
2391    o includes r* 2nd term in potential gradient.
2392    
2393    checkpoint48f_post
2394    Merging from release1_p12:
2395    o Modifications for using pkg/exf with pkg/seaice
2396      - improved description of the various forcing configurations
2397      - added basic radiation bulk formulae to pkg/exf
2398      - units/sign fix for evap computation in exf_getffields.F
2399      - updated verification/global_with_exf/results/output.txt
2400    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2401      (SBO) core products, including oceanic mass, center-of-mass,
2402      angular, and bottom pressure (see pkg/sbo/README.sbo).
2403    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2404      to avoid negative values in shallow regions.
2405      - updated verification/natl_box/results/output.txt
2406      - updated verification/lab_sea/results/output.txt
2407    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2408    o Added useSingleCpuIO option (see PARAMS.h).
2409    o Updated useSingleCpuIO option in mdsio_writefield.F to
2410      work with multi-field files, e.g., for single-file pickup.
2411    o pkg/seaice:
2412      - bug fix in growth.F: QNET for no shortwave case
2413      - added HeffFile for specifying initial sea-ice thickness
2414      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2415    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2416      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2417    o pkg/seaice:
2418      - adjoint-friendly modifications
2419      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2420    
2421    checkpoint48e_post
2422    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2423    o dynamics: change definition of computational domain & adapt mom_fluxform
2424      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2425    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2426        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2427        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2428        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2429        inverted_barometer solid-body.cs-32x32x1
2430      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2431    
2432    checkpoint48d_post
2433    o in preparation for r*:
2434     a) use pre-computed gradient of hydrostatic potential:
2435        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2436     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2437        => affects results of glob_oce_pressure (different truncation error)  
2438      update output.txt of ideal_2D_oce & global_ocean_pressure
2439    
2440    checkpoint48d_pre
2441    o in preparation for r*:
2442      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2443      pass the 2 comp. of the grad. as arguments to momentum S/R.
2444      but for the moment, only used if it does not change the results.
2445    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2446    
2447    checkpoint48c_post
2448    Modifications in treatment of initial flux forcing controls
2449    to avoid extra storing of flux fields.
2450    
2451    checkpoint48c_pre
2452    o Added tidal_basin_2d experiment (currently 1D!)
2453    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2454    
2455    checkpoint48b_post
2456    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2457     (modification to pressure gradient not yet implemented)
2458    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2459      (for U & V) that are used for vertical advection of momentum.
2460    
2461    checkpoint48a_post
2462    o In preparation for r*, use temp. array to compute vertical transport
2463       in flux-form momentum pkg. => change results of few test-exp.
2464      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2465                        lab_sea, natl_box & plume_on_slope
2466    
2467    checkpoint48
2468    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2469    
2470    checkpoint47j_post
2471    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2472    o moved adexch from forward_step to addummy_in_stepping
2473    o added exch in ctrl_map_...
2474    o aveFreq.=0. at end of cost_final to avoid overwrite in
2475      reverse checkpointing loop
2476    o Yet more changes in gmredi:
2477      * adgmredi_calc_tensor
2478        avoiding all recomputation of gmredi_slope_limit
2479      * adgmredi_x/y/rtransport
2480        added flag for excessive storing to avoid recomp. of
2481        u/v/rtans, dTdx/y/z
2482        -> this is not really necessary and very memory-consuming
2483      * adgmredi_slope_psi:
2484        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2485      * gmredi_slope_limit
2486        re-activated full calculation of taperfct for case 'ac02'
2487    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2488    
2489    checkpoint47i_post
2490    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2491    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2492      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2493    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2494    o gmredi: fix few bugs.
2495    
2496    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2497    This will be a good checkpoint to plug into the ecco-branch.
2498    o few modif.'s to get latest version adjointed
2499      (mainly kick out code in ini_linear_phisurf)
2500    o modif's to run adjoint with exactConserv
2501    o case GM_BOLUS_ADVEC should be cleaned
2502      S/R gmredi_slope_psi should be cleaned
2503    o verification/carbon now has exactConserv=.TRUE.
2504    
2505    checkpoint47g_post
2506    o time-average AIM output: becomes independent from statvars time-average
2507      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2508    o After TAF bug fix:
2509      Tested adjoint of gmredi package.
2510      Tests were done with checkpoint47 rather than with latest
2511      checkpoint47f_post since the latter is broken for the adjoint
2512      verification/carbon/ contains both ADM and TLM gradient checks.
2513    Here they are, before they get changed/lost/stolen.
2514    Mostly modif.'s to fix numerical sensitivities.
2515    Gradient checks OK for
2516    - GM_taper_scheme:
2517      * clipping
2518      * ac02
2519      * linear
2520      * glw91
2521      * dm95
2522      * ldd97
2523    - GMREDI_OPTIONS:
2524      * GM_VISBECK_VARIABLE_K
2525      * GM_NON_UNITY_DIAGONAL
2526      * GM_EXTRA_DIAGONAL
2527      * GM_BOLUS_ADVEC
2528    in conjunction with data.gmredi parameters to be checked in
2529    in a few minutes under verification/carbon/code/
2530    
2531    checkpoint47f_post
2532    Merging from release1_p10:
2533    o modifications for using pkg/exf with pkg/seaice
2534      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2535        and SEAICE_EXTERNAL_FLUXES
2536      - pkg/exf CPP options EXF_READ_EVAP and
2537        EXF_NO_BULK_COMPUTATIONS
2538      - usage examples are Experiments 8 and 9 in
2539        verification/lab_sea/README
2540      - verification/lab_sea default experiment now uses
2541        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2542    
2543    checkpoint47e_post
2544    o created a tag prior to creating a branch
2545    
2546    checkpoint47d_post
2547    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2548      at the bottom boundary had an erroneous half slip boundary condition
2549    o added bottom drag and no slip boundary condition capabilities to
2550      oceanic pressure coordinates code
2551    o added new verification experiment global_ocean_pressure, this experiment is
2552      also described in the tutorial section of the manual
2553    checkpoint47d_pre
2554    
2555    checkpoint47c_post
2556    o Added a verification experiment for a global cubed-sphere ocean run
2557      -  verification/global_ocean.cubed32x32x30
2558      -  uses pkg/therm_seaice and pkg/bulk_forcing
2559    
2560    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2561    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2562      when using P-coordinate; only implemented for atmospheric config.
2563    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2564      NOTES: requires option NONLIN_FRSURF to be "#define".
2565    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2566    
2567    checkpoint47b_post
2568    Merging from release1_p9:
2569    o pkg/seaice
2570      - removed GOTO's and added taf directives
2571      - double precision constants to reduce the g77 (Linux)
2572        to F77 (SGI) differences reported in release1_p8
2573    o tools/genmake
2574      - added SGI options
2575    o verification/testscript
2576      - updated to that of checkpoint47a_post
2577    o verification/global_ocean.90x40x15/input/eedata
2578      - modified for SGI f77 compatibility
2579    o verification/lab_sea
2580      - added description of sea-ice model
2581      - added missing matlab routines
2582      - added test of thermodynamics parallelization
2583    
2584    checkpoint47a_post
2585    o new pkg: aim_v23
2586     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2587       for now, keep the same surface forcing as before.
2588     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2589     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2590     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2591    o add diagnostic of surface correction term in monitor output
2592    
2593    o bulk_force and therm_seaice
2594    - Two packages:  bulk_force (Bulk forcing)
2595      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2596    - Earlier integration from Stephaine Dutkiewicz
2597      and Patrick Heimbach.
2598    - Two ifdef statements for compile time,
2599       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2600    
2601    checkpoint47
2602    differentiable version of checkpoint46n_post
2603    o bug fix in quasihydrostaticterms
2604    o * "clean" adjoint code (in terms of extensive recomputations)
2605        can now be obtained for all GMREDI options (i.e. for
2606        - GM_VISBECK_VARIABLE_K
2607        - GM_NON_UNITY_DIAGONAL
2608        - GM_EXTRA_DIAGONAL
2609        - GM_BOLUS_ADVEC )
2610      * However, wrong gradient check problem remains unsolved.
2611      * New CPP options have been introduced for different
2612        tapering schemes
2613    o external_fields_load now part of differentiation list
2614    o pressure needs multiple storing;
2615      would be nice to have store_pressure at beginning or
2616      end of forward_step, e.g. by having phiHyd global (5-dim.)
2617      (NB: pressure is needed for certain cases in find_rho,
2618      which is also invoked through convective_adjustment).
2619    o recomputations in find_rho for cases
2620     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2621    o #define ATMOSPHERIC_LOADING should be differentiable
2622    o ini_forcing shifted to begining of initialise_varia
2623    o Incorporating QNVS line search routines into MITgcm
2624      (this is separate code, and therefore not under pkg)
2625      lsopt/, optim/
2626    o Updated verification/carbon/
2627      - #define GM_VISBECK_VARIABLE_K
2628      - GM_taper_scheme    = 'ldd97'    
2629    
2630    checkpoint46n_post
2631    Merging from release1_p8:
2632    o verification/natl_box:
2633      updating new external_fields_load routine
2634    o New package: pkg/seaice
2635      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2636      The sea-ice code is based on Hibler (1979-1980).
2637      Two sea-ice dynamic solvers, ADI and LSR, are included.
2638      In addition to computing prognostic sea-ice variables and diagnosing
2639      the forcing/external data fields that drive the ocean model,
2640      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2641      The implied surface heat flux is then stored in variable
2642      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2643      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2644      non-local transport term.  Because this call precedes model
2645      thermodynamics, temperature under sea-ice may not be "exactly" at
2646      the freezing point by the time theta is dumped or time-averaged.
2647      N.B.: fairly large differences in accuracy occur across
2648            different platforms/compilers; comparison between
2649            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2650            generated output gives:
2651       T           S           U           V
2652      C D M    c        m  s        m  s        m  s        m  s
2653      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2654      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2655      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2656    
2657      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2658    o GAD:
2659      - generated new common blocks to account for call of
2660        same gad routines with differing traceridentities
2661        (needed to modify tracerIdentity indices in GAD.h)
2662      - generated separate common blocks for case useCubedSphereExchange
2663        (Department of Futurology)
2664      - parameter lists to gmredi_?transport: added tracerIdentity
2665      - added new key indices to tamc.h
2666    o external_fields_load:
2667      - added this routine to TAF list
2668      - needed to make some common blocks global and additional storing
2669        along the same lines as exf package (checkpoint_lev?_directives.h)
2670    o exf:
2671      updated external forcing package
2672      - bug fixes carried over from ecco-branch
2673        (missing OBCS_OPTIONS.h in two routines)
2674      - enable easy to use "no forcing".
2675      - added exf I/O for atmospheric loading
2676      - added exf I/O for runoff data
2677      - transfered scaling between exf <-> MITgcm to exf namelist
2678    o Adding new verification experiment global_with_exf.
2679      This verification experiment is almost identical to the
2680      global_ocean.90x40x15 experiment, except that it uses
2681      the exf (and cal) package instead of the
2682      external_fields_load routine (cf README file).
2683    
2684    checkpoint46m_post
2685    o modified testscript to return -- when there are no lines of "%MON" output
2686    o added new flag "quasiHydrostatic" for QH mode
2687      and new routine quasihydrostaticterms()
2688    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2689      New routine: mom_u_coriolis_nh()
2690    o fixed sign of non-hydrostatic metric terms in u and v equations.
2691      Depend on correct sign of gravitySign.
2692    o added work.pc* to .cvsignore in aim directories using ifc
2693    o introduced flag for controllin non-hydrostatic metric terms
2694    o removed gravitySign from PARM04
2695    o switched to g77/ifc from pgf77 in aim experiments
2696    
2697    checkpoint46l_post
2698    o made convective adjustment work with pressure coordinates:
2699     - changed the direction of k-loop in convective_adjustment.F for the
2700       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2701     - adjusted the reference pressure k-index in convective_adjustment.F
2702     - adjusted the convection condition in convect.F (in analogy to
2703       calc_ivdc.F)
2704     - convective_adjustment no longer computes anything on the halos
2705     - removed the warnings about negative salinity from find_rho.F and
2706       find_alpha.F; instead the new routine look_for_neg_salinity, called
2707       at the beginning of find_rho, find_alpha, and find_beta, does a
2708       check of the entire slice, if CPP-option
2709       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2710    checkpoint46l_pre
2711    
2712    checkpoint46k_post
2713    o fixed the verification/global_ocean.90x40x15 experiment:
2714     - new bathymetry (the world according to A., JMC, and M.)
2715     - new initial fields and forcing fields (*.bin files)
2716     - new POLY3.COEFFS (for the next release one should switch to a full
2717       equation of state: JMD95P or MDJWF)
2718     - fixed several errors and redundancies in the data file
2719     - experiment uses looped cells
2720     - added matlab directory with diagnostic scripts for plotting of output
2721    
2722    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2723     - read AIM physics parameters from a file (data.aimphys)
2724     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2725    
2726    checkpoint46j_post
2727    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2728    o move wVel computation at the end of the time step, in S/R integr_continuity
2729    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2730    o update timeave pkg for wVel diagnostic.
2731    checkpoint46j_pre
2732    
2733    checkpoint46i_post
2734    o Clean up AIM package (and keep the results unchanged):
2735      include CPP_OPTION and use IMPLICT NONE in all routines ;
2736      declare all the variables _RL ; use _d 0 for all numerical constants.
2737      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2738    
2739    checkpoint46h_post
2740    o cleaned up the use of rhoNil and rhoConst.
2741      - rhoNil should only appear in the LINEAR equation of state, everywhere
2742        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2743        and the dynamical equations are all divided by rhoConst
2744    o introduced new parameter rhoConstFresh, a reference density of fresh
2745      water, to remove the fresh water flux's dependence on rhoNil. The default
2746      value is 999.8 kg/m^3
2747    o cleanup up external_forcing.F and external_forcing_surf.F
2748      - can now be used by both OCEANIC and OCEANICP
2749    checkpoint46h_pre
2750    
2751     Added code to convert surface volume flux (fresh water) into
2752     a mass flux when using P coordinates in the ocean (OCEANICP).
2753     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2754    
2755    checkpoint46g_post
2756    o Include a new diagnostic variable phiHydLow for the ocean model
2757      - in z-coordinates, it is the bottom pressure anomaly
2758      - in p-coordinates, it is the sea surface elevation
2759      - in both cases, these variable have global drift, reflecting the mass
2760        drift in z-coordinates and the volume drift in p-coordinates
2761      - included time averaging for phiHydLow, be aware of the drift!
2762    o depth-dependent computation of Bo_surf for pressure coordinates
2763      in the ocean (buoyancyRelation='OCEANICP')
2764      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2765        Theta, Salinity, and Pressure in the parameter list. This routine is
2766        presently contained in find_rho.F. This routine does not give the
2767        correct density for 'POLY3', which would be a z-dependent reference
2768        density.
2769    o cleaned up find_rho
2770      - removed obsolete 'eqn' from the parameter list.
2771    o added two new verification experiments: gop and goz
2772      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2773    checkpoint46g_pre
2774    
2775    checkpoint46f_post
2776    o Enable tangent linear (forward mode) gradient checks:
2777      - extended active file handling to g_... files
2778      - added TANGENT_SIMULATION to theSimulationMode
2779      - extended grdchk package accordingly
2780    o added tangent linear setup in verification/carbon/code_ftl
2781    o added adjoint setup in verification/front_relax/code_ad
2782    
2783    checkpoint46e_post
2784    o Added new equation of state -> MDJWF
2785      - EOS of McDougall et al., 2002, JAOT, submitted
2786      - caveat: the equation of state is only valid for a smaller (more
2787        realistic?) range of values than JMD95P/Z and UNESCO
2788      - added masks to the calculation of pressure in store_pressure
2789      - added more check values for density in check_eos (ini_eos.F), some of
2790        the old check values are out of the range of the MDJWF-eos, so don't
2791        expect perfect matches for those
2792    checkpoint46e_pre
2793    
2794    checkpoint46d_post
2795    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2796      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2797      case of pressure coordinates. eosType='JMD95Z' in
2798      combination with buoyancyRelation='OCEANICP' now causes an error.
2799    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2800      in find_alpha/beta.
2801    checkpoint46d_pre
2802    
2803    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2804      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2805    
2806    checkpoint46c_post
2807    o Changes necessary for ocean in p-coordinates
2808     -  Added new buoyancy relation = 'OCEANICP'
2809     -  Added new parameters = gravitySign (this used to be contained inside
2810        the factor dRdZ which I added when we first switched to R coordinates).
2811     X GM/Redi is not compatible (yet)
2812     X bottom drag and no-slip need to be debugged.
2813    checkpoint46c_pre
2814    
2815    checkpoint46b_post
2816    o Added new equation of state -> JMD95Z and JMD95P
2817      - EOS of Jackett and McDougall, 1995, JAOT
2818      - moved all EOS parameters into EOS.h
2819      - new routines ini_eos.F, store_pressure.F
2820    o Added UNESCO EOS, but not recommended because it requires
2821      in-situ temperature (see JMD95)
2822    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2823      unesco.f to be used with POLY3
2824    checkpoint46b_pre
2825    
2826    checkpoint46a_post
2827    o Added (atmospheric) pressure loading
2828      - new field in FFIELDS.h, etc...
2829      - new cpp flag ATMOSPHERIC_LOADING
2830    o Changed hFacC to _hFacC in calc_phi_hyd.F
2831    o Added SHORTWAVE_HEATING to some files for consistency
2832    checkpoint46a_pre
2833    
2834    checkpoint46
2835    further merges from release1_p5
2836    o new ctrl package
2837      - adopted from ECCO environment to enable optimization
2838      - added Eliassen Palm fluxes to controls
2839    o added Eliassen Palm flux controls to gradient check package
2840    o cost package
2841      - Compatible with new ctrl package
2842      - added Eliassen Palm cost hooks
2843      - modif's of existing cost functions
2844    o Adjoint-related bug fixes in kpp:
2845      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2846      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2847    o autodiff package
2848      - flow directives:
2849        + new for S/R do_the_model_io
2850        + enhanced for S/R checkpoint
2851        + new gmredi.flow
2852      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2853        disable adcommon.h/g_common.h by default.
2854      - fixed problem for adjoint of global_max
2855    o modified verification/carbon/
2856    o New setup for adjoint of global_ocean
2857    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2858    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2859    o incorporated hooks for sponge layer code (external_forcing.F)
2860    
2861    checkpoint45d_post
2862    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2863    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2864      (affects plume_on_slope "cg2d" output)
2865    o add new parameter deltaTfreesurf for free-surface time stepping
2866    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2867    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2868    o change phiMin in exp1 (to agree with documentation)
2869    o add new flags:
2870     - T,S forcing inside/outside Adams-Bashforth
2871     - turn off temp,salt advection and/or forcing
2872     - for each tracer, define internal flag for multiDimAdvection & A-B
2873    o monitor: change definition of KE to check conservation of Energy
2874    
2875    checkpoint45c_post
2876    o Removed f90 comments ("!")
2877    o Modified initialisations to enable exf package for MITgcm
2878      (without invoking ECCO_PACKAGE).
2879    o modifications to gradient check package (Martin Losch)
2880      - enable centered differences
2881      - modified format of standard output
2882    
2883  checkpoint45b_post  checkpoint45b_post
2884  o cleaned exchange calls in cg2d  o cleaned exchange calls in cg2d
2885  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step

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