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revision 1.193 by edhill, Thu Oct 23 04:41:40 2003 UTC revision 1.769 by dimitri, Wed Feb 7 17:38:11 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  untagged  o pkg/exf: changes to properly interpolate/mask/scale initial fields
8    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
9      and portions thereof.  See read_cs.txt for description and examples.
10    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
11      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
12      following the great-circle arc between those 2 points.
13    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
14      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
15    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
16     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
17     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
18     - still needs work (not working with some options ; efficiency to improve)
19       and serious testing.
20     - use this scheme for temperature & salinity in 2 advection test exp.:
21       advect_xy & advect_xz, respectively.
22    
23    checkpoint58u_post
24    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
25    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
26    o testreport: add option "-skipdir" to skip some test.
27    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
28      momentum calculation.
29    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
30    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
31      remove checkpoint.F and the_correction_step.F (no longer used);
32      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
33    o add option (linFSConserveTr) to correct for tracer source/sink due to
34      Linear Free surface
35    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
36    o pkg/thsice: fix reading mnc-pickups
37    
38    checkpoint58t_post
39    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
40    o pkg/mdsio:
41     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
42       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
43       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
44     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
45     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
46       either MDS_READ_FIELD or MDS_WRITE_FIELD )
47     - new S/R (to replace MDSWRITEMETA), which allows to write more
48       informations (variable names, time ...) to meta files.
49     - modify rdmds.m to give back the meta file content.
50    o pkg/diagnostics: change vertical interpolation to be safer, and more
51       flexible (define p-levels to interpolate to in data.diagnostics);
52      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
53       diagnostic pointer.
54    o pkg/seaice: more cleaning up of seaice_growth, added many comments
55    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
56    o fix multi-category seaice:
57     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
58       SEAICE_MULTICATEGORY
59     - fix short wave heat flux
60    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
61       and allow to use EVP solver. Change forward lab_sea: test both EVP
62       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
63    o Initial check-in of lab_sea adjoint
64      (very similar to natl_box_adjoint/code_seaice)
65      * used C-grid and EVP solver
66      * used KPP, GM/Redi
67      * uses inAdExact=.TRUE.
68      * gradient checks fail for both ADM and TLM
69        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
70        f.d. gradients actually seem more problematic than ADM, TLM gradients;
71        issue is related to forward mismatch between g77 an ifort
72    o pkg/seaice: overhaul of thermodynamics
73     - growth.F and groatb.F are replaced by new routine seaice_growth.F
74     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
75     - move a few global fields out of SEAICE.h into seaice_growth.F and
76       make them 2D (FICE/QNETO/ ...)
77     - remove FO (it is the same as QNETO)
78     - introduce a few local fields to avoid modifying external fields such
79       as atemp, etc.
80    
81    checkpoint58s_post
82    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
83      changed exf_set_gen.F so that
84        genperiod=0 means input file is one time-constant field and
85        genperiod=-12 means input file contains 12 monthly means
86    o CG2D: use pre-computed solver main-diagonal (stored in common block);
87      this affects truncation error ; generate new output file for exp. which
88      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
89        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
90        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
91        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
92        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
93        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
94    o start implementation of deep-atmosphere and anelastic formulation
95    o verification: remove 2nd copy of input files and use script "prepare_run"
96      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
97    o mom_common/vecinv/fluxform: fix a few initialisation isssues
98    o profiles: fix for multithreaded case
99    
100    o diagnostics: rename few diags:
101      s/'PRESSURE'/'RCENTER '/g
102      s/'TICE    '/'oceFreez'/g
103      s/'TAUX    '/'oceTAUX '/g
104      s/'TAUY    '/'oceTAUY '/g
105      s/'SWFLUX  '/'oceQsw  '/g
106      s/DIFx/DFxE/g
107      s/DIFy/DFyE/g
108      and add few ocean-forcing diagnostics:
109      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
110    o modifications to pkg/seaice/growth.F and budget.F, which change results of
111      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
112      as actual snow thickness.  It now refers everywhere to effective snow
113      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
114    
115    checkpoint58r_post
116    o modifications to pkg/seaice/growth.F, which change results of
117      lab_sea experiment: fixes pertain to melting snow over open water, to
118      masking EVAP under sea ice, and to using the correct AREA variable for
119      computations of EVAP, PRECIP, HSNOW, and GHEFF
120    o add ability to read bathy, salt, and theta using MNC (off by def)
121    o add flooding algorithm and advection of HSNOW for pkg/seaice;
122      both are turned off by default and do no change any results
123    o seaice advection with pkg/thsice: a step toward the use of non-linear
124      advection scheme, but #ifdef or commented out for now (requires more EXCH).
125    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
126      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
127      in natl_box (affects results @ truncation level: update output.txt)
128    o multi-threading and IO:
129      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
130      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
131        (needed to work with SingleCpuIO): tested in all verif. exp.
132    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
133      affects the results (but none of the verification test uses this scheme).
134    o Adding some pkg/diagnostics capability to pkg/seaice
135      (will certainly be subject to changes)
136    o ctrl: adding new control variables:
137      lwflux, lwdown, evap, snowprecip, apressure, runoff
138    
139    checkpoint58q_post
140    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
141      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
142      high_res_cube configuration by 4% on Columbia.
143    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
144      add (in global_with_exf/code) a version of EXF_INTERP_READ without
145      dynamical allocation (seems to work in multi-threaded).
146    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
147      single CPU io) so that TAF does not have to see EESUPPORT.h
148    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
149    
150    checkpoint58p_post
151    o obcs: stop if obcs is used with useCDscheme = .true.
152    o shelfice:
153     - fix a sign error so that no slip at shelfice interface works
154     - remove stop for combination non-hydrostatic code and shelfice. That does
155       not mean, that the results are correct, but at least they are numerically
156       stable
157    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
158    o added adjoint exch routined for all exch*3d* routines
159      and updated flow directives
160    
161    checkpoint58o_post
162    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
163      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
164    o change controling S/R for writing pickup file (new S/R do_write_pickup)
165      and clean-up reading/writing of pickup files.
166    o fix local version of read/write pickup (NH part) in rotating_tank/code
167    o simplify EXCH interface:
168     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
169     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
170    o added the regrid package
171    o shelfice:
172     - add a simple boundary layer scheme to reduce noise
173     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
174    
175    checkpoint58n_post
176    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
177       local variable (not in common block).
178    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
179      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
180      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
181        to work with SingleCpuIO.
182    o add "_d 0" to real constant of pkg/cfc subroutines ;
183       update exp. cfc_exemple & tutorial_cfc_offline output files.
184    o multi-threading and IO:
185      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
186        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
187      - barrier before and after reading.
188      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
189      - avoid using MDS_WRITELOCAL for LAND pkg output.
190      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
191        common-block variables ; Allows multi-threading with master-thread IO.
192    o change default MAX_NO_THREADS from 32 to 4 ;
193      and stop cleanly when MAX_NO_THREADS is too small.
194    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
195    
196    checkpoint58m_post
197    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
198       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
199    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
200       keep global_ocean.90x40x15 (for AD testing) with former secondary test
201       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
202    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
203        add MITgcm_tutorials (= code + all the tutorials)
204    o ecco, option to compute cost for total ssh (mean+anom)
205    o consistent with addition of ptracer and ssh in pkg/profiles
206    o profiles: adding ptracer and ssh
207    o testreport: change multi-test output-file name
208      (from output.txt.{name} to output.{name}.txt)
209    o profiles: now ok for mutli-tiles case
210    o seaice: add 4 parameters for different advection schemes for area,
211      (effective) seaice thickness, enthalphy, and snow height. Their default
212      is the standard parameter SEAICEadvScheme
213    o calc_gw:
214     - add cosFacU in zonal viscous flux (harmonic.visc.).
215     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
216       of tutorial_plume_on_slope.
217    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
218    o calc_gw: true flux-form, account for horizontal grid spacing.
219      update rotating_tank results, but not plume_on_slope (affected at
220      truncation level, 11 digits).
221    
222    checkpoint58l_post
223    o calc_gw:
224     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
225     - remove side-drag for now (need to fix it); update plume_on_slope results.
226     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
227    o commit code to make SST/SSS weights spatially variable
228      (based on either variable in-situ or variable initial T/S weights)
229    o pkg/ecco:
230      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
231        now based on horizontally varying weights wthetaLev, wsaltLev
232      * cost_averagesflags now returns year indices in addition to day, month
233      * sflux balance is performed on annual basis
234        (sflxumm, sfluxmm2, bal_sfluxmm)
235      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
236        including separate counting and multipliers
237    o pkg/rbcs
238      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
239    
240    checkpoint58k_post
241    o testreport:
242     - always build in dir. "build" (if not there, mkdir build instead of building
243       & running in input)
244     - run in dir run (if it exists), in build otherwise.
245     - call prepare_run (if input/prepare_run exists)
246     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
247    o pkg/exf modifications to interpolation and rotation routines for more
248       reasonable treatment of North Pole singularity: for tracers North Pole
249       value is set to northernmost zonal-mean value, for zonal velocity it is
250       set to zero, and for meridional velocity it is set to northernmost value.
251    o pkg/exf/exf_check_range.F
252     - add tile index to diagnostics and move stop statement to the very
253       end of the routine.
254    o pkg/diagnostics: (diagnostics_main_init.F)
255      define title of isomorphic variables according to the current config.
256    o pkg/thsice with pkg/seaice dynamics:
257    - fix domain of computation (interior only, required for exf) and do exchanges
258    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
259    o towards a standard way of dealing with multi-threading in MONITOR
260      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
261    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
262       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
263    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
264    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
265    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
266       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
267    o tracer advection:
268     - clean-up and simplify calc_common_factors.F
269     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
270       advection subroutine (but still not used within DST advection S/R)
271    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
272    
273    checkpoint58j_post
274    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
275      from file (collects calls previously in FORWARD_STEP)
276    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
277    o adjoint store dir. adjusted accordingly
278    o genmake2
279      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
280    
281    checkpoint58i_post
282    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
283      on wind stress (SEAICEstressFactor defaults to 1.)
284    o Total number of Timers is finite (<=40): comment out 2 non-essential one
285      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
286    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
287      on CS-grid: no longer loosing mass.
288    o exf & curvilinear-grid: no longer modify longitude xC & xG.
289    o pkg/ggl90: fix sloppy output and fix a bug
290    o pkg/seaice: added SEAICEuseEVPpickup parameter
291      - Set to false in order to start EVP solver with
292        non-EVP pickup files when using SEAICEuseEVP
293      - fix sign error in diffusion in seaice_calc_rhs
294    
295    checkpoint58h_post
296    * Modifications for bottom topography control
297      o replace hFacC by _hFacC at various places
298      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
299      o add non-self-adjoint cg2d_nsa
300      o update autodiff support routines
301      o re-initialise hfac after ctrl_depth_ini
302      o works for 5x5 box, doesnt work for global_ocean.90x40x15
303    * Adding verification for 5x5 box (4-layer) bottom topography control
304    
305    checkpoint58g_post
306    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
307       used for mean seasonal cycle, mean diurnal cycle); add an example
308       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
309    o pkg/ggl90:
310      - add parameter (minimum surface kinetic energy)
311      - fix bug (avoiding division by zero)
312    o couple pkg/thsice to pkg/seaice:
313      - modify advection in seaice to accomodate new scalar fields to be advected
314      - only muliDimAdection scheme work with seaice/thsice
315      - mapping of thsice-variables to seaice-variables, back and forth
316      - does not break the verification experiments, but does not give the
317        desired results either
318    o pkg/seaice
319      - make (default) second order advection a bit less confusing?
320    
321    checkpoint58f_post
322    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
323      to pkg/seaice):
324      - new routines thsice_map_exf and thsice_get_exf provide the interface
325      - add an additional formal parameter to thsice_solve4temp
326    o pkg/exf:
327      - add new fields wspeed, snowprecip (to be able to couple to thsice)
328      - correct Stefan-Boltzmann constant
329      - new parameter for longwave surface emittance
330      - separate some stuff from exf_bulkformulae into new routines  
331        exf_radiation, exf_wind
332      - add new parameters and constants: longwave emissivity for ocean, ice
333        and snow, evaporation parameters over ice
334      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
335        either wind from stress or stress from wind
336    o pkg/thSIce:
337    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
338    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
339       and THSICE_CALC_THICKN
340    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
341    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
342      to make debugging easier.
343    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
344    o pkg/bulk_force:
345      - clean-up comments and parameters ;
346      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
347    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
348      generate new output for test-experiment: aim.5l_cs.thSI
349    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
350      testreport accordingly
351    
352    checkpoint58e_post
353    o SEAICE_CGRID adjoint done
354    o R_STAR adjoint implemented.
355      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
356      * need to sort out init. of h0facc, etc.
357    o Make pkg/profile fully independent of ecco,cost, etc. stuff
358      to be able to use it in pure forward.
359    
360    checkpoint58d_post
361    o upgrade simple test-experiment to tutorial example:
362     step.1: duplicate the experiment and (step.2) will remove the old copy.
363      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
364      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
365      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
366      tutorial_global_oce_biogeo    <- copy of dic_example
367      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
368      tutorial_plume_on_slope       <- copy of plume_on_slope
369      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
370      tutorial_global_oce_optim     <- empty for now (David ?)
371      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
372     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
373    o correct a sign problem in cost_scat.F
374    o obcs and ptracers: fix boundary conditions for advections schemes
375      with larger stencil
376    o thsice adjoint: start
377    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
378      completeness
379    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
380      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
381    o ptracers adjoint:
382      * avoid extensive recomputatations
383      * fix missing re-init. of gptr (missed by TAF)
384    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
385      me to turn off the excessive output to STDOUT that this package produces
386    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
387      and add those terms in Vector-Invariant formulation.
388    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
389      if the control period (xx_hfluxperiod etc) is 0
390    o in profiles pkg, clean routines and fix details
391    o in ecco pkg, reading ssh data:
392      fix problem in case the model does not start at iter0=0
393    o fix mnc-pickup/restart for ptracers
394    o new package prifiles:
395      code to compute profile-based cost by Gael Forget
396      (modifs in ecco, ctrl, autodiff)
397    o Benign bug fix in initialization (spotted by M. Mazloff) of
398      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
399    
400    checkpoint58c_post
401    o adjoint: finish NLFS adjoint and provide reference output in
402      verification/global_ocean.90x40x15/results_ad_nlfs
403    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
404      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
405      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
406      with SEAICE_CGRID defined.
407    o move calendarDumps from "data" to "data.cal" and clean-up the code
408      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
409    o add useEXF & useCAL flags (for now, set in hard-coded way)
410    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
411      (were missing in NH mode, and wrong in quasihydrostatic mode).
412      waiting for Chris updated version of calc_gw to add those CALLs.
413    o fix bug in quasihydrostatic S/R ;
414      add a test for this option: global_ocean.90x40x15.qshyd
415    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
416      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
417    o add on/off flag useOffLine for package OFFLINE
418    o seaice:
419      - modify advection so that it works also on the C-grid
420      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
421        problem in multi-tile runs with C-grid
422      - add flags for clipping ice velocities and/or masking solver forcing
423      - fix drag (ocean on ice) formulation and a bug that caused noise in the
424        C-grid solver
425      - added a few comments to seaice_diffusion.F
426      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
427        are now exclusive)
428      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
429        required re-ordering the code a little:
430       + make DAIRN global variable (defined in SEAICE)
431       + move computation of the viscosities eta and zeta into a new separate
432         routine (because I need to recompute them in seaice_ocean_stress.F)
433    
434    checkpoint58b_post
435    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
436      update output.txt of exp. aim.5l_cs.thSI
437    o various mnc cleanups and improvements:
438      + shrink lookup tables by factor of ~4
439      + better error reporting when running out of lookup space
440      + able to handle longer path/file names (up to 500 chars)
441    o adjoint:
442      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
443      - TBD: "hidden" mom_vecinv recomp. in dynamics
444    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
445     (allow to differentiate between forcing components using new integer flags:
446      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
447     and add new flag to put Dissipation tendency out of Adams-Bashforth.
448    o ecco
449      - enable trend removal from SSH anomaly obs.
450    o adjoint
451      - a fix for PmEpR when #undef EXACT_CONSERV
452      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
453      - try to fix "hidden" recomp. in forward_step for NLFS
454        (NLFS seems broken sometimes after I checked it in)
455    o seaice:
456     - add c-grid version of the dynamic solver:
457       + three new routines that are the c-grid substitute lsr, dynsolver
458         and ostres
459       + put a few fields that were local to dynsolver into global common
460         blocks, so that I can move the computation of stresses etc into
461         seaice_lsr (saves coding but may break the adjoint).
462     - replace more hardwired parameters by runtime parameters
463     - add ice masks that mask the rhs of the implicit solvers where there
464       is no ice (commented out in seaice_dynsolver, because i am not sure
465       if this works properly), eventually this should replace the clipping
466       of ice velocities in seaice_dynsolver to +/-40cm/s.
467    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
468      include it only where its needed
469    o move balancing of fluxes before the call of external_forcing_surf
470    o seaice:
471      - correct units of turning angles (now they are really in degrees)
472      - move computation of GWATX/Y out of main routine into dynsolver
473      - initialize GWATX/Y in seaice_init
474    o Apply mask on Fresh-Water flux (needed for SSH forcing).
475      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
476    o seaice: add runtime flags for turning angles (default to zero)
477    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
478      and trend from exf forcing and ctrl control adjustments
479    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
480      (since checkpoint57x_post)
481    o change the default rotation period to 86164.s = the Earth rotation
482    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
483      and based on a reference stratification. Tested within hs94.cs-32x32x5.
484    o seaice advection: add code for choosing between the default (2nd order
485      central differences) and multiDim advection schemes provided by
486      pkg/generic_advdiff
487    o seaice:
488      - removed all references to SEAICE_GRID.h fields from
489        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
490        (cubed-sphere configuration will change a little)
491      - grid computations in seaice_init are obsolete now.
492      - cleaned up code a little so that is easier to read (hopefully).
493      - added new (better?) discretizations of default advection and diffusion
494        (turn on with SEAICEuseFluxForm)
495      - replace 1 in 3d global fields by kSurface in growth.F
496      
497    checkpoint58a_post
498    o seaice:
499      - bug fix in advect.F
500    o shelfice:
501      - separate shelfice load anomaly from pload (breaks with time
502        dependent forcing), => introduce constant field shelficeLoadAnomaly.
503        Its default is 0., but it may be computed more cleverly from (unknown)
504        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
505        done offline. A good approximation of the pressure load anomaly is
506        necessary to avoid large initial adjustment processes underneath
507        deep-reaching shelfice.
508      - small fix in ISOMIP shelfice_thermodynamics
509      - add more sophisticated thermodynamics of Hellmer (1989), this is
510        now the default
511      - give a few constants more intuitive names
512    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
513      if bulk formulae are used in long integration (especially EmPmR). Turn
514      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
515      if balancePrintMean, the imbalance that is substracted is printed to
516      STDOUT.
517    o fix bug (typo) in obcs_apply_eta.F
518    o add a new package shelfice which enables us to model the circulation
519      underneath shelf-ice with draughts of hundreds of meters.
520     - works
521     - to do: + include improved thermodynamics
522              + check whether kSurfC (from model/inc/SURFACE.h) can be used
523                instead of new field kTopC
524              + can we use topoFile, Ro_surf and existing code in ini_depth.F
525                instead of new field R_shelfIce and new code in ini_depth.F
526                and ini_mask_etc.F?
527              + adjust vertical mixing schemes?
528    o seaice pkg:
529     - add a cpp-flag to include a simple formula for a salinity dependent
530       freezing point of sea water at the surface
531     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
532       meridional stresses are now different (and hopefully correct)
533    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
534       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
535       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
536    o pkg/diagnostics: add options and parameters for regional-statistics
537       diagnostics ; define regions by reading a region-mask from a file
538       (might add other options later)
539    o pkg/bulk_force:
540     - add option and parameters to use AIM surface-flux formulae.
541     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
542       others forcing fields (defined in PARM05, parameter file "data") are loaded
543       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
544     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
545     - use the right EXCH call for uwind,vwind (to work on CS-grid).
546     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
547       and parameters (note: calcWindStress replaces .NOT.readwindstress).
548     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
549    
550    checkpoint58
551    o add "--embed-source" option to genmake2 which, when the supporting
552      tools can be compiled (as determined by genmake2) will turn on the
553      embed_files package which then embeds the entire MITgcm source code
554      (*.[fFhc] + Makefile) used for the build within the executable
555      - requested by CNH but off by default
556      - adds a paltry <9MB to the mitgcmuv executable in most cases
557      - only writes the output when useEMBEDSRC in eedata is true
558    o clean up 3-dim. relaxation codes:
559      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
560      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
561      * Thanks to Tom Haine for testing!
562    
563    checkpoint57z_post
564    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
565      affects output (@ truncation level) of exp. plume_on_slope ; updated.
566    o fix the pickup behavior for obcs in combination with ptracers
567    o fix a bug in ptracers_external_fields_load
568    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
569      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
570    o transfered surface NH pressure to eta field (if exactConserv).
571    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
572         and update lab_sea output.txt file.
573    o completing 3-dim. relaxation code: additional term
574         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
575      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
576      * At compile time, in "EXF_OPTIONS.h" set
577          #define  ALLOW_CLIMTEMP_RELAXATION
578          #define  ALLOW_CLIMSALT_RELAXATION
579      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
580          tauThetaClimRelax3Dim = 15552000.0,
581          tauSaltClimRelax3Dim  = 15552000.0,
582      * 3 cases:
583          1) Use a constant-in-time 3-dim. field
584          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
585          3) Real-time relax. to time-evolving prescribed field
586    o Adding Laplacian-type smoothness constraint on
587      initial and boundary (forcing) controls (ic, bc)
588      * enable at compile-time via
589        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
590      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
591      * Absolute scale somewhat unclear so far
592      * no area weighting was included since no other cost term does so far
593    
594    checkpoint57y_post
595    First step for a NLFS adjoint
596    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
597    o new init. routines for calc_r_star, calc_surf_dr
598    o still need to deal with ini_masks_etc
599    o testreport seemed happy
600    checkpoint57y_pre
601    
602    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
603    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
604    o add new offset feature to offline pkg (plus minor cleanup)
605    o cfc fixes for final year of integration
606    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
607      be in GCHEM_OPTIONS).
608    
609    checkpoint57x_post
610    o fix testreport Pb in multiple test experiment.
611    o cleanup our namelist syntax in verification:
612      - make it more F95 standards compliant (some work still needed)
613      - allows the vast majority of our tests to work with gfortran
614    o Non-Hydrostatic:
615     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
616     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
617    o Allow to apply AB on T,S rather than on AB(gT,gS):
618     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
619     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
620       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
621     - need a "clever" read_pickup to restart from the other AB formulation
622    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
623    o remove some unused variables (reduces number of compiler warnings)
624    o adjoint
625      * Disable useVariableViscosity for adjoint for time being
626        (there are a number of extensive recomputations)
627      * Initialize certain variables needed for adjoint
628    
629    checkpoint57w_post
630    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
631                 fix the singleCpuIO RS version of MDSWRITEFIELD
632       and add a WARNING if using globalFiles=T with multi-processors.
633    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
634      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
635    o tracer advection scheme:
636      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
637       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
638       was not very convenient).
639      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
640       (further tests needed for the implicit DST & Flux-Limiter schemes).
641    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
642      and sRef for convenience, handy, when you want to initialize
643      ptracers in a large domain with a constant non-zero value. Also,
644      untangle ptracers_init.F a little.
645    
646    checkpoint57v_post
647    o change dome exp. to use variable viscosity in side-drag terms.
648    o remove all the files from the cfc_offline test since they are now
649      incorporated into tutorial_cfc_offline which has been producing
650      identical results for a few days of testing
651    o add new parameter: sideDragFactor to enable half-slip-side BC
652      and change side-drag S/R to use viscosity from mom_calc_visc
653      (can switch back by setting sideDragFactor=0.); affects results at
654      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
655       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
656    o vorticity & strain are now computed without masking, to account for
657      no-slip-side BC in variable viscosity calculation ; mask is applied
658      anyway later on, before computing advection/coriolis terms.
659    o modify exp4 to test new obcs support for reading from external files
660      and for passive tracers
661    o fix behavior of ptracers_monitor when monitor output is written to a
662      netcdf-file; still not independent of monitor.F (writes in the same
663      file).
664    o change default value of tRef (put a uniform, meaningful value for ocean
665      & atmos) and initialize sRef (was missing, as Martin mentioned).
666    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
667      to be proportional to enstrophy dissipation length.  Thus,
668       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
669      This is now consistent with Smagorinsky and with the manual.
670    
671    checkpoint57u_post
672    o OBCS and PTRACERS: add open boundary support for passive tracers
673      - either use homogenous (pseudo) v.Neumann conditions or prescribe
674        OB-values from file; this is not different from the way theta and salinity
675        are treated
676      - however, Orlanski-radiation conditions are not supported, and the model
677        will stop if you use pTracers and Orlanski at the same time.
678      - beefed up the rountine obcs_external_fields_load: now only those open
679        boundary values are overwritten with values from files for which there
680        are really files, otherwise the OB-fields remain untouched. This makes
681        it possible to use different OBs at different ends of the domain (as
682        with EXF)
683    o reduce number of exch calls in shap_filt (s2).
684    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
685      truncation level) 4/5 MLAdjust test results (11&12 digits match).
686    
687    checkpoint57t_post
688    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
689    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
690      same truncation, independent of the face number: affects affects several
691      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
692    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
693      note that biharmonic viscosity + no-slip was not tested in any experiment.
694    o fix bug in non-linear free-surf side-drag ; generate new output for
695      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
696    o make mnc honor the writeBinaryPrec flag for most kinds of output
697    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
698    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
699      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
700    o add brackets in multi-terms sum to get same truncation, independent of
701      the face number (manage to get exactly same value of gU,gV at the cs-edge)
702      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
703    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
704      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
705      a maximum grid-scale Reynolds number.  Also, changes all length calculations
706      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
707      Suggested values of viscosity parameters found in mom_calc_visc.
708      Many new viscosity diagnostics available.
709    
710    checkpoint57s_post
711    o Add clearing-house for viscosity calculations, mom_calc_visc and
712      correct numerous bugs in LeithD and Smagorinsky discretizations.  
713      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
714      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
715      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
716      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
717      The Strain-Tension form is now called with useStrainTensonVisc=.true.
718      ViscAhStrain and viscAhTension are now retired.
719    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
720    o In response to JMC's bug report, genmake2 now ignores any soft-links
721      that it finds in the *current* directory when searching for files.
722      Soft-links found in any other source directories will still work as
723      they did before.
724    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
725      a C routine to unlimit the stack size
726    o mnc-ify pkg/aim snapshot vars
727    o mnc-ify pkg/land as requested by Daniel
728    o various changes to mnc including:
729      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
730      - output can now be grouped so that all files within a group
731          change the ITER portion of their names in lock-step together
732      - can now read ("global") PER-FACE (in addition to PER-TILE) files
733          and works with both EXCH1 and EXCH2 (but needs more testing)
734      - writing works for all verification test cases w/ g77 on Linux
735    
736    checkpoint57r_post
737    o make MNC variable initialization happen earlier
738    o add diagnostics for (almost) each term of the momentum Eq.
739    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
740    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
741    o remove MINIMAL_TAVE_OUTPUT option ;
742      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
743    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
744      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
745    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
746    o add time-dependent SST, SSS control
747    o cost terms in ecco/ modularized (new cost_generic.F)
748    o cost_averages routines are modularized (new cost_averagesgeneric.F)
749    o new infrastructure for seaice model vs. obs misfits in seaice/
750      * driver from the_main_loop.F is seaice_cost_driver.F
751      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
752      * gradient check in Exp. 6a of natl_box_adjoint/
753    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
754      (see README file)
755    
756    checkpoint57q_post
757    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
758    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
759      - bug was reported by Jean-Michel and Ian Fenty
760    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
761      update exp. cpl_aim+ocn output.
762    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
763      Needed for high-res. runs with large global files
764      to be able to limit tapelev size
765    o Changed some tests for adjoint:
766      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
767      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
768      * global_ocean.90x40x15/ back to default 3-level checkpointing
769    o Modifications to enable scripted COMMON to MODULE conversion
770      * verification/OpenAD/code/ has necessary scripts and description;
771      * converts, compiles and runs successfully;
772    
773    checkpoint57p_post
774    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
775    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
776      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
777    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
778    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
779      (was already the case for dissipation with mom_vecinv,
780       and also the case for grad.PhiHyd when staggered-timeStep)
781      This will allow to put dissipation out-off the AB time-stepping.
782     Unfortunately, affects truncation error. Update output of exp. that "fails"
783      (cg2d matching number) and leave the others for later: front_relax(10),
784      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
785      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
786    
787    checkpoint57o_post
788    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
789      (2) its ready to be documented during the 20050801 DocFest
790    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
791      for ideal_2D_oce and lab_sea on linux_ia32_g77
792    o set to #undef CTRL_SET_OLD_MAXCVARS_30
793      in global1x1_tot/code_seaice_adj to access indices 32, 33
794      (worth another tag)
795    
796    checkpoint57n_post
797    o adding precip control xx_precip 32
798    o adding swflux control xx_swflux 33
799    o Replacing 10 forcing penalty cost routines by 1 generic.
800    o Implementing partitioning in time-mean and variable adjustment
801      for atmos. state.
802    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
803    o in natl_box_adjoint:
804      * updated exp 1 to 10
805        (but does not have time-mean vs. variable split results yet)
806    o updated global1x1/*_seaice_adj/
807      to incorporate latest changes
808    o enable useSingleCpuIO for mdsio vector routines
809      (applies in particular to tapelev I/O)
810    o removed inefficient K-loop in all active_file*control*.F
811    
812    checkpoint57m_post
813    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
814      and advect_cs (use EXCH-2 and standard cs-32 grid files).
815    o pkg/exch2: filling of face-corner halo regions is optional
816      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
817    
818    checkpoint57l_post
819     tag before updating tutorials (pre-release-2)
820    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
821       for output and interpolation of input fields onto model grid)
822    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
823       Affects results of exp. rotating_tank ; update output.txt.
824    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
825          and taking the square quantity and/or using a fraction-weight field.
826    o fix aim_diagnostics_init.F mate numbers.
827    o add mnc output capability to diagnostics/diagstat and update
828      our cvsignore files for the ACSII output generated
829    
830    checkpoint57k_post
831    o lab_sea now uses diagnostics package and provides a suite of
832      new EXF diagnostics output.
833    
834    checkpoint57j_post
835    o exf
836      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
837        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
838        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
839      * extended diagnostics output
840        - now includes all EXF variables
841        - hs, hl moved to common block
842        - separate S/R for diagnostics, called after ctrl vector is added
843        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
844        - EXFqnet contains true Qnet (i.e. includes qsw)
845      * updated verif. lab_sea, global_with_exf
846      * Rearranging hflux (exf_mapfields -> exf_getforcing)
847        to ensure that diagnostics sees a true EXFqnet
848    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
849    o diagnostics pkg: change pointers so that 1 diagnostic can be used
850      several times with different frequencies.
851    o mnc-ify the thsice package as requested by Daniel Enderton
852      - the monitor--MNC output needs work
853      - many attributes need to be added (most are currently blank)
854    o mnc-ify theaim_v23 package as requested by Daniel Enderton
855      - many attributes need to be added (most are currently blank)
856    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
857    o add Sadourny like discretization to the 4th.O vorticity advection scheme
858    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
859      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
860         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
861    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
862     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
863    
864    checkpoint57i_post
865    o Diagnostics package was changed: diagnostic allocation is now deactivated
866      by setting an empty file name in the namelist (used to be by setting 0 frequency)
867    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
868      add 1rst Order upwind vertical Shear.
869    o add a quick fix for A/B checkpointing in OFFLINE mode
870    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
871      end-run around the C/Fortran linking horror in eesup/src/timers.F
872    o added pkg/runclock: allows user to terminate run based on wall clock
873    o added non-hydrostatic scaling parameter: nh_am2
874    o pkg/my82: futile attempt to make results compiler-independent by adding
875      some "_d 0", etc. no effect.
876    o for mnc output, fill the 'T' coordinate var with myTime and create a
877      separate 'iter' variable for iteration count
878    o pkg/diagnostics:
879      add new capability: output of Global/Regional & per-level statistics ;
880      tested against monitor output (including land & thSIce) on various exp.
881    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
882    
883    checkpoint57h_done
884      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
885      data.diagnostics, data.gchem, data.ptracers) is done.
886    
887    o pkg/diagnostics: prepare for Global/Regional statistics.
888      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
889    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
890      and rename it: DIFFERENT_MULTIPLE
891    
892    checkpoint57h_post
893    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
894    o pkg/diagnostics: change output frequency, now in seconds (instead
895      of Nb of iterations). This requires to change data.diagnostics.
896    checkpoint57h_pre
897    
898    o in mnc, let the user create the output dir if both mnc_outdir_date
899      and mnc_outdir_num are false
900    o add fflags() to pkg/diagnostics which allows one to specify, on a
901      per-file basis, the file precision [default behavior is unchanged]
902    o added diagnostics to pkg/kpp, including computation of mixed layer
903      depth based on a temperature/density criterion
904    o updated verification/natl_box to test the new pkg/kpp diagnostics
905    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
906    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
907    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
908      not mnc -- this mistake was found by JMC and is now corrected
909    
910    checkpoint57g_post
911    o add Adams-Bashforth 3rd Order time stepping:
912      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
913      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
914    checkpoint57g_pre
915    
916    o make lambda[Theta,Salt]ClimRelax spatially varying
917      (default remains spatially uniform constant based on tau)
918    o added new control variables
919      * init. uVel, vVel, etanN
920      * lambda[Theta,Salt]ClimRelax
921    o separate masks used for ctrl_pack/unpack 'from write_grid' output
922      (suggested by G. Forget)
923    
924    checkpoint57f_post
925    o add parameter "baseTime" = model base time = time at iteration zero
926      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
927      account for baseTime shift
928    o move Coriolis arrays from PARAMS.h to GRID.h
929    checkpoint57f_pre
930    
931    o mnc-ifying the seaice package
932    o introduced an alternative length scale calculation for use in the limiting
933      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
934    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
935    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
936      as well as grad(vort3).  Made it compatible with both approximate form
937      for the cubed sphere and full form of these gradients.  Added flag
938      useFullLeith to select between approximate and full form.  
939    o add "d0" in getcon.F to reduce differences between compilers/platforms
940      update output.txt of exp. fizhi-gridalt-hs
941    o change port_rand funtion to allow to set the seed.
942    o fix obscure MNC bug involving conversion between reals and integers
943      - it caused no problems with certain (eg. gcc, ifc) compilers but the
944        new version is now more standards-compliant
945    o adjoint-related modifications
946      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
947      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
948      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
949    
950    checkpoint57e_post
951    o Adding eddy stress controls a la Ferreira et al.
952    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
953    
954    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
955      update output.txt of exp. fizhi-gridalt-hs
956    o add more "Z" dimensions and associated coordinate vars to MNC
957    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
958    o parameter calendarDumps: when set, approximate months (30-31 days) and years
959      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
960      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
961      months and years.  Requires pkg/cal.
962    o diagnostics: add pickup functionality
963      - off by default for backwards compatibility
964      - current version only uses MDSIO -- MNC will be added
965    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
966    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
967    
968    checkpoint57d_post
969    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
970    o modify verification/ideal_2D_oce so that it tests the creation of mnc
971      output from the diagnostics package
972    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
973    o make genmake2 more portable by using ".$FS" instead of ".f" for more
974      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
975    o add coordinate variables to the MNC output from the diagnostics package
976    o change MNC-flags default value: true when useMNC=TRUE
977    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
978      the ability (off by default) to read the grid information using MNC
979    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
980    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
981    o do snap-shot diagnostics at the middle of the time-interval (instead of
982      at the end).
983    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
984      new test for AIM with thSIce + slab-ocean
985    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
986    o move state variable diagnostics to the beginning of the time step ;
987      (note: still needs some work specially for snap-shot diagnostics)
988      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
989    
990    checkpoint57c_post
991    o Change testing option (-ieee) to get closer agreement between g77 & ifort
992    o generate new output.txt files on faulks with g77 & the new -ieee option
993    checkpoint57c_pre
994    
995    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
996      update output.txt of exp. global_ocean.90x40x15
997    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
998      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
999    o add saltFlux(+File) forcing capability with periodicExternalForcing
1000    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1001    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1002    o improvements for the MNC output from DIAGNOSTICS:
1003      - correct handling of the unlimitied dimension
1004      - all dims now have associated coordinate variables
1005      - variables located at U, V, and Corner ("Z") points are now written
1006        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1007        *all* data points are output
1008    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1009    o added pkg/seaice/seaice_monitor.F
1010    o mdsio_readfield.F can now read files visible only to master MPI process.
1011    o pkg/seaice: some test code for ice-modified ocean stress
1012    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1013      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1014      spurious negative numbers for precipitation and humidity.  Will cause
1015      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1016    o pkg/ctrl/
1017      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1018        May be enabled via doPackDiag
1019      *  introduce z-scaling of
1020         + gradient (doZscalePack) and
1021         + control (doZscaleUnpack)
1022    o pkg/mdsio/
1023      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1024      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1025    
1026    checkpoint57b_post
1027    o simplify options in diagnostics_fill arguments (remove weird combinations)
1028    o fix MNC coordinate variables so that they now contain per-face index
1029      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1030      general, EXCH2 grids are only aligned to a "local" coordinate system
1031    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1032    o Implement instantaneous output within pkg diagnostics:
1033      setting a negative frequency in data.diagnostics produces
1034     "snap-shot" output (as opposed to time-average if freq > 0)
1035    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1036      NOTE: change ptracer diagnostics name: use 2 characters to work with
1037            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1038    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1039      becomes the coordinate variable for the 'T' dimension
1040    o add CF-style coordinate variables to MNC
1041      - just a first cut:  numbers are meaningless on the cubesphere and
1042        missing along the T axis but otherwise it works!
1043    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1044    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1045    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1046      this is based directly on what the model compute, so that the content of
1047      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1048    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1049    o clean up build options files for SunOS, in particular
1050      - remove -traditional from xmakedepend
1051      - change -xarch=v9 to -xarch=native for f77
1052      - restore use of make (not gmake)
1053      - add CC=gcc if using g77
1054    o changes per discussion of AM, JMC, & EH3 today:
1055      - move redundant "grid" variables out of "state" -- in preparation of
1056        creating proper CF-style coordinate variables and in recognition
1057        that any/all grid variables can be easily copied (eg. w/NCO) from
1058        the grid files into any of the other NetCDF files
1059      - *always* output grid variables with MDSIO (this will eventually be
1060        changed)
1061      - output MNC grid file if useMNC is true
1062    o every instance of _END_MASTER() has been found and replaced with
1063      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1064      preprocessors
1065    o re-arrange diagnostics pkg initialisation:
1066     - allow each package to extend the available diagnostics list
1067     - add some checking and fix small problems (multi-threaded, ...)
1068     - new S/R diagnostics_fill (replace fill_diagnostics):
1069       look through the short list of active diag. (instead of the long list)
1070       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1071    
1072    checkpoint57a_post
1073    o this set of changes restores TAMC compatibility
1074      tested for global_ocean.90x40x15 adjoint on trough
1075      (what a pain)
1076    
1077    checkpoint57a_pre
1078    o some modifs in tools/build_options for sunos
1079    o call ctrl_pack for ctrl at end for optimcycle=0
1080    
1081    checkpoint57
1082    o add horizontal bi-harmonic viscosity for vertical velocity
1083      - new parameter viscA4W (defaults to viscA4)
1084      - affects only non-hydrostatic code
1085      - to be done: no-slip lateral boundary conditions
1086    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1087    o implement Implicit Vertical advection for pTracers
1088    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1089      (implemented also for implicit vertical diffusion & advection)
1090    o OBCS: extend application of tracer open boundary conditions
1091      to a strip beyond the boundary of width Olx/Oly
1092    o add call monitor to TAF set of required calls (flow directives)
1093      and include in natl_box_adjoint
1094    o untangle a few ifdefs related to cost, ctrl, autodiff
1095      untangel a few ALLOW_ECCO_OPTIMIZATION
1096    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1097      (theta2, salt2 in ecco_cost_weights)
1098    
1099    checkpoint56c_post
1100    o OBCS as control variables
1101      - update ctrl_ad_diff.list, obcs_ad_diff.list
1102      - remove balance of obcs controls from default
1103      - fix index bug nobcs in ctrl_init
1104      - fix dummy fields filen in ctrl_pack
1105      - add dummy weights for obcs
1106    o lsopt: comment out fort.94 output
1107    o optim:
1108      - remove unnecessary header files
1109      - adjusted namelists
1110      - add xerbla.F to Makefile
1111    o exf:
1112      - multiple modifications of exf_check_range
1113      - unit change in exf_init_runoff from [m/year] to [m/s]
1114    o mdsio:
1115      - i/o-vector change debugLevel from debLevA to debLevB
1116    
1117    checkpoint56b_post
1118    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1119      is called from DO_THE_MODEL_IO
1120      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1121      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1122      - clean up PTRACERS_WRITE_TIMEAVE a little
1123    o add another verification experiment that tests both the cfc-pkg and
1124      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1125      reactive tendencies treated inline with regular timestepping
1126    o testreport previously did a lousy job of comparing small numbers, so
1127      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1128      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1129      testreport.
1130    o ptracers_monitor: bug fix for MPI
1131    
1132    checkpoint56a_post
1133    o GCHEM: finish reorganizating the package
1134      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1135        (introduces another 3D-array for each passive tracer, but only if
1136        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1137        gchemTendency is not needed because the timestep is done separately)
1138      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1139      - GCHEM is now---more or less cleanly---separate from PTRACERS
1140      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1141        so clear to me how that should be done in a general way.
1142    o CFC: improve formatting of output in CFC_ATMOS
1143    o PTRACERS:
1144      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1145        that ALL experiments with ptracers enable can be checked. This makes
1146        GCHEM_MONITOR obsolete.
1147      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1148        monitorFreq
1149      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1150    o add PTRACERS (PTR0[1-5]) to testreport output
1151    o exf_check_range:
1152      * default changed to .TRUE.
1153      * will check values for niter0 if debLevA, every timestep if debLevB
1154      * STOP in exf_check_range if 'out of range'
1155      * range chosen generous to allow for potential extema
1156      TBD: a version with stricter range
1157           permitted range would be runtime parameters
1158    o GMredi:
1159      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1160      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1161      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1162    o GCHEM:
1163      - move call to GCHEM_FORCING_SEP, so that it is now called before
1164        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1165      - introduced a useGCHEM runtime flag and applied it everywhere.
1166      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1167        this flag is now only visible within GCHEM-pkg routines.
1168      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1169        be replaced by a 3D array that is computed before thermodynamics; for
1170        this, the tracer ID iTracer had to be included into the parameter list
1171        of ptracers_forcing
1172      - set up forward_step to call gchem_forcing, that will replace
1173        gchem_forcing_int in ptracers_forcing
1174      - cleaning up
1175    o small cleaning of exch2: remove files that are also in eesupp/src
1176    
1177    checkpoint56
1178    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1179    o mnc: cleanup "full" files--fixes out-of-memory problem
1180    o ECCO-GODAE
1181      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1182      * fully merged and updated from SIO code
1183        windstress sign change affects
1184        - exf_inscal_[u/v]stress
1185        - sign of xx_tau[u/v] adjustments
1186        - signs in cost_scat
1187      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1188      * natl_box_adjoint updated and compressed
1189      * 2-level checkpoint switch added
1190        (tested in EXP. 1 of natl_box_adjoint)
1191      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1192    o SVD
1193      * first complete, non-hacked version for SVD calculations
1194      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1195        performed via direct access files admtlm_vector.it????
1196        (via ctrl_[un]pack)
1197      * optimcycle is used for ARPACK iteration counter
1198        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1199      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1200        and add linear transforms where necessary
1201      * controls are initial/final SST, SSS (can be extended; need to check
1202        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1203    o mdsio: filename info to both stderr, stdout
1204    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1205      from sign change
1206    
1207    checkpoint55j_post
1208    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1209      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1210    o add consistent build directories and .cvsignore files to verification
1211    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1212    o make all subroutines 30 or less characters in length for certain older
1213      compilers to work (a thorough search only turns up two routines in
1214      pkg/ptracers)
1215    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1216      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1217    
1218    checkpoint55i_post
1219    o change arrays for total vertical diffusivity (2.D if explicit,
1220      3.D if implicit) ; each ptracer uses its own background value.
1221    o added mnc/NetCDF output capability to ocn_compon_interf
1222      - added bits to verification/cpl_aim+ocn so that it can run on
1223        ITRDA and other clusters without the mpirun "-wd" option
1224    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1225      configuration
1226    o give MNC the ability to create additional files rather than
1227      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1228      - the default is just less than 2GB which is a practical limit
1229        on many systems
1230    o Compute the non-local term using either KPP vertical diffusivity (=default)
1231       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1232    
1233    checkpoint55h_post
1234    o add verification test "vermix"
1235    o remove all the *_ioinc flags and replace with the single global
1236      outputTypesInclusive flag
1237    o allow to set a vertical profile of vertical diffusivity for T & S
1238    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1239    o useMNC moved from data.mnc to data.pkg
1240    
1241    checkpoint55g_post
1242    o Renaming carbon AD experiments to comply with testreport conventions
1243    o Updating adjoint of Held-Suarez hs94.1x64x5
1244    o Fixing directives for non-ECCO forward_step, after ECCO directives
1245      have been fixed to avoid recomp. of do_oceanic_phys
1246      Works well for global_ocean.90x40x15,
1247      but recomp. issue remains for carbon
1248    o Updating adjoint output for natl_box_adjoint after
1249      pkg/ecco has been modified (see taga c55d_post)
1250    
1251    checkpoint55f_post
1252    o rename to timeave_init_fixed
1253    
1254    checkpoint55e_post
1255    o some delicate re-shuffle of store directives to avoid one
1256      extra call of do_oceanic_physics
1257      affects ecco_the_main_loop.F, do_oceanic_physics.F
1258      checkpoint_lev1_directives.h
1259    o NB: this may break global_ocean adjoint temporarily,
1260      but it is clear how to fix it. Will do later, need this now.
1261    
1262    checkpoint55d_post
1263    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1264    o ecco_cost_weights is modified to 1x1 runs
1265    o modifs to allow observations to be read in as
1266      single file or yearly files
1267    o enable to read exf forcing fields as either
1268      single file or yearly files (flag useExfYearlyFields)
1269    checkpoint55d_pre
1270    
1271    o switch between 2-level and 3-level checkpointing
1272    o add ability of MNC to write local and "partial" (eg. 2D slices where
1273      the full 3D field is never actually stored) arrays to NetCDF files
1274      with the correct (that is, the complete multi-dimensional) set of
1275      array indicies
1276      - used in mom_vecinv() to write the diagFreq output
1277      - tested (demonstrated) in verification/aim.5l_cs
1278    o further mnc-ification
1279      - add verification/lab_sea to the list with mnc setups
1280      - fix undefined mnc v-names in cd_code
1281      - add kpp to mnc output (both snapshot and timeave)
1282    o non-hydrostatic code
1283      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1284        in calc_gw.F
1285      - defaults to viscAh
1286      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1287        friction or Leith) in non-hydrostatic mode, as long as there is
1288        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1289    o pkg/cost
1290      extend simple cost functions to treat time mean quantities
1291      (T,U,V) via cost_accumulate_state from cost_tile
1292    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1293        be 2 times larger than the minimum size the advection scheme requires.
1294        now get a perfect conservation of salt in advect_cs test-exp (updated)
1295    o GGL90 (Gaspar's TKE mixed layer)
1296      - add horizontal diffusion of TKE, requires exchanges in
1297        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1298        default. In OPA there is no horizontal diffusion of TKE but the
1299        mixing coefficients are computed from a horizontal average of TKE of
1300        6 points or so. I think that diffusion has a little more physical
1301        justification.
1302      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1303        was in vain)
1304      - mask tke-variable in ggl90_init
1305    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1306    o fix biharmonic diffusion on CS-grid.
1307    o more obcs stuff
1308      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1309        for reading boundary values. This routine is called from
1310        obcs_prescribe_read
1311      - updated obcs_check
1312      - changed sponge layer relaxation parameter units for days to seconds
1313      - turned off sponge layer by default
1314      - changed argument list of OBCS_CALC to myTime+deltaTclock
1315      - fixed about 35 bugs in obcs_external_fields_load
1316    
1317    checkpoint55c_post
1318    o obcs stuff
1319      - new runtime flags useOBCSprescribe, useOBCSbalance
1320      - re-arranged obcs_calc
1321      - moved exf_getobcs to obcs_prescibe_read
1322        obcs_prescibe_read is called after ORLANSKI stuff
1323        and independent of it (executable can contain all).
1324      - updated obcs_check
1325      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1326        These may be necessary only if tangential velocities are
1327        prescribed at OB, not sure, needs testing.
1328    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1329      which simplifies the calls and passes the ifc check-bounds test
1330    
1331    checkpoint55b_post
1332    o add a 2D scalar, Z location, exchange_2 routine.
1333    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1334      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1335      affects advect_cs results (for the wrong reason): update output.txt
1336    o use a more standard discretization for biharmonic viscosity ;
1337     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1338      affects results of dome set-up: update output.txt
1339    o fix gad_advection.F (CubedSphere part), back to version 1.23
1340    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1341    
1342    checkpoint55a_post
1343    o merged code to
1344      * prescribe/read time-dependent open boundaries
1345        (works in conjunction with exf, cal)
1346      * sponge layer code for open boundaries
1347      * each boundary N/S/E/W now has its own CPP option
1348        (healthy for the adjoint)
1349    
1350    checkpoint55
1351    o up-to-date adjoint of previous breaks
1352      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1353      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1354      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1355      - carbon: * remove tr1-related adjoint verification
1356                * add ptracer as control variable
1357    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1358      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1359    
1360    checkpoint54f_post
1361    o in verification/carbin/ remove experiment related to
1362      ALLOW_PASSIVE_TRACER (array tr1 etc)
1363      code_ad/ input_ad/ results_ad
1364    
1365    o add two new packages
1366      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1367        + subject to optimization (memory)
1368      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1369        + subject to reordering (many GOTOs in the original code)
1370        + so far opps is called for every (i,j) point, and then operates in
1371          the vertical; one may want to reorder the scheme in order operate in
1372          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1373          fields)
1374    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1375      - all verification tests compile and run with linux_ia32_g77
1376      - defaults are compatible with current input files--nothing
1377        should change if you were not previously using MNC
1378      - MNC output has been added in numerous places (eg. timeave)
1379        but there are still a few writes not yet do-able with MNC
1380        (this is in progress)
1381      - flags now allow for either/or/both use of MDSIO and MNC and
1382        documentation will soon follow
1383      - numerous small formatting cleanups for ProTeX
1384    o add version info (via BUILD_INFO.h) to MNC and stdout
1385    
1386    checkpoint54e_post
1387    o add two new packages
1388      - pp81 (Packanowski and Philander, 1981), Richardson number and
1389        stratification dependent mixing
1390      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1391      - these scheme operate in a similar manner as KPP (without ghat, of
1392        course), however there is only one diffusivity that is used for both
1393        temperature and salinity (and passive tracers)ç
1394    o add offline package
1395    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1396      provided by Stephanie Dutkiewicz
1397    o genmake2: add ability to search for C compilers and cleanup test output
1398      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1399    
1400    checkpoint54d_post
1401    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1402    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1403      leading to additional shift by 5 days each year of integration
1404       (i.e. leading to considerable offset over the years)
1405    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1406    o start with no AB and no initial filtering (staggerTimeStep):
1407      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1408    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1409      (external loading & cpl import/export stay in forward_step.F)
1410    o update coupling interface to work with new staggerTimeStep
1411    o change MDSIO ptracers_pickup.
1412    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1413    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1414    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1415    
1416    checkpoint54c_post
1417    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1418      this affects (truncation error) output.txt of test-exp:
1419       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1420    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1421    o change Qnet to always be the net heat flux, (+upward).
1422      affects (truncation error) output of natl_box exp.: updated
1423    o define the max number of passive tracers in PTRACERS_SIZE.h
1424    o start to test mnc routinely in exp0
1425    o add sea-ice loading (sIceLoad) as a new forcing field.
1426    
1427    checkpoint54b_post
1428    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1429       impressive on Altix and Opteron systems)
1430    o diagnostics can now write NetCDF files through the mnc package
1431    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1432    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1433    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1434      affects (truncation error) output of lab_sea & natl_box exp.: updated
1435    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1436    
1437    checkpoint54a_post
1438    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1439    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1440    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1441    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1442      + internal_wave (shift in writing cg2d_ini_res)
1443    checkpoint54a_pre
1444    
1445    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1446      - modified verification/lab_sea and natl_box_adjoint accordingly
1447    
1448    checkpoint54
1449    checkpoint53g_post
1450    o prepare splitting of thermodynamics: store convect.counter in common block
1451    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1452      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1453    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1454    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1455    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1456    o restore adjointability
1457    
1458    checkpoint53f_post
1459    o modifications that affect AIM experiment results (update output.txt):
1460      - no advection of S at top interface Nr (pkg/generic_advdiff)
1461      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1462    o AIM pkg:
1463      - include stability function into surf.Flux derivative relative to Tsurf
1464      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1465    
1466    checkpoint53e_post
1467    o merged cylindrical coord configuration
1468    o added rotating_tank experiment
1469    checkpoint53e_pre
1470    
1471    checkpoint53d_post
1472    o faulks upgraded: re-generate output.txt that have changed:
1473       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1474    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1475    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1476    o added Sadourny discretization of Coriolis
1477      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1478      - re-enabled use of omega3 (useAbsVorticity)
1479    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1480      vector-invariant equations
1481      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1482    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1483      hopefully without new bugs
1484      - still to do: biharmonic friction for non-hydrostatic w
1485    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1486    o regenerated output for global_ocean_ebm (using -ieee)
1487    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1488      of mom_common/
1489      - simple re-arrangement of instructions within computing loop
1490    checkpoint53d_pre
1491    
1492    checkpoint53c_post
1493    o new version of coupler for AIM+thSIce and Ocean models
1494     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1495     - land: change Evaporation of snow
1496     - aim with thSIce: fix bug in snow-precip.
1497    o changes to calc_gw.F
1498     - bug fix for w^2 term near the bottom boundary
1499     - (hopefully) improve the lateral slip boundary condtions for use with
1500        partial/looped cells
1501      - because the bug fix changes two verification experiments anyway (exp5
1502        and plume on slope), change the lateral boundary condition from half slip
1503        to the value of no_slip_sides
1504    o ebm package wasnt quite up to the parallel task. Fixed that.
1505    o Adjoint of EBM package + verification
1506      * TLM OK
1507      * ADM not sufficient accuracy yet (needs further testing)
1508    
1509    checkpoint53b_post
1510    o Commiting new energy balance model to repository
1511      * package is pkg/ebm
1512      * verif. is verification/global_ocean_ebm
1513      * references are in ebm_driver.F
1514    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1515    C        Global thermohaline circulation. Part I:
1516    C        Sensitivity to atmospheric moisture transport.
1517    C        J. Climate 12(1), 71-82
1518    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1519    C        Global thermohaline circulation. Part II:
1520    C        Sensitivity with interactive transport.
1521    C        J. Climate 12(1), 83-91
1522    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1523    C        Destabilization of the thermohaline circulation
1524    C        by atmospheric eddy transports.
1525    C        J. Climate 7(12), 1870-1882
1526    o Will need long integration testing.
1527    checkpoint53b_pre
1528    
1529    o created pkg/mom_common in preparation for variable viscosity code
1530    o renamed and split ini_mnc_io
1531    o pkg/land: only liquid water can diffuse or run-off
1532    o AIM using land: soil wetness availability account for snow
1533    o added printMapIncludesZeros to EEPARMS namelist
1534    
1535    checkpoint53a_post
1536    o restore TAMC compatiility for exf_constants.h
1537      (no usage of _d in .h)
1538    o Additional storing in KPP in an attempt to fix
1539      TAMC problem with adjoint of KPP code.
1540      (no success...)
1541      Identical code works fine with TAF.
1542    o Fixed verification/natl_box_adjoint experiments.
1543      Initial conditions for Experiments 4 and 5 are now
1544      set to "SEAICE_initialHEFF=0", which is more reasonable,
1545      and hence gives results closer to that of Experiment 2.
1546      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1547    
1548    checkpoint53
1549    o stable checkpoint with up to date adjoint
1550      TLM tests only run for 1st grdchk at the moment. Its unclear if
1551      this is a code problem or a problem with resetting code for g_
1552      variables that is being autogenerated wrong.
1553      Otherwise:
1554       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1555       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1556         are both still in chaos following their security messes.
1557    
1558    checkpoint52n_post
1559    o various build (mostly genmake2) changes including:
1560      - ability to build/run more easily within Cygwin and MacOS X
1561      - more complicated Makefiles with a stronger dependence on Gnu Make
1562    o pkg/seaice modifications
1563      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1564        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1565        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1566      - changed proxy for geostrophic velocity and updated
1567        verification/lab_sea/results/* accordingly
1568      - removed ADI dynamic solver from pkg/seaice
1569      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1570        they caused a segmentation fault under certain circumstances
1571      - removed unused field WATR
1572    o bug fix in exf-package:
1573      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1574         now reflect that.
1575    o small fixes in the cal-package:
1576      - set reference date to first of January for the 'model'-calendar
1577      - failing of cal_CheckDate in cal_FullDate now actually results in a
1578        warning
1579    o small modifications in exf-package to increase flexibility:
1580      - change climtempfreeze from a constant to a runtime parameter that
1581        is specified in data.exf_clim (default = -1.9)
1582      - introduce runtime parameter windstressmax (default = 2.0) that is
1583        specified in data.exf
1584    o fix in pkg/thsice:
1585      - update Evap (Tsf changes) to be consistent with Latent heat flux
1586      - maintain snow precipitation unchanged (even if Tsf >=0).
1587     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1588    
1589    checkpoint52m_post
1590    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1591      this does not change any of the results, because myIter=0 in swfrac always
1592      lead to jwtype=2 (the default anyway), but the call makes little sense
1593      as a default
1594    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1595    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1596      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1597    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1598    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1599    o extending useSingleCpuIO option to work with new exch2 I/O format
1600      - old-style, missing-tile I/O is still accessible by defining CPP
1601        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1602    o monitor package can write to NetCDF files and/or STDOUT
1603    o fix re-definition bug in MNC_GRID_INIT_ALL()
1604    o doc/api_reference added
1605      - a framework for building an API Reference Manual using all
1606        the "protex" comments embedded in the code
1607      - see pkg/generic_advdiff, pkg/mnc for examples
1608    o MNC:
1609      - make myThid the last argument for all subroutines
1610      - new default for the grid files: NO halos
1611      - add useMNC and other run-time flags
1612      - separate per-file-group handling of the unlimited dimension
1613      - early initialization of MNC w/ flags read at the eeboot stage
1614        and lookup tables set in initialize_fixed
1615      - write all MNC output to a freshly-created directory
1616    o thermodynamics sea-ice (thsice) is now tested with testreport.
1617    o test exp. advect_cs: use the standard cs32 grid ; update output.
1618    o Added functionality to grdchk:
1619      pick global i,j,k position (or nearest wet) where to perform check.
1620    
1621    checkpoint52l_post
1622    o new land formulation:
1623      a) use ground enthalpy as prognostic variable to ensure exact
1624         energy conservation.
1625      b) account for water temperature and for latent heat of freezing
1626         in all processes (rain, run-off, ground storage)
1627      c) compute surface and ground temperature implicitly.
1628    o aim_v23 modification for new land model:
1629      a) Treat separately land / ocean / sea-ice surface fluxes
1630         to allow implicit computation of land & sea-ice surface temp.
1631      b) add snow precipitation.
1632    checkpoint52l_pre
1633    
1634    o fix problem (when 1 tile is empty) in min/max monitor.
1635    o fix bug in timeAve (u,vZetatave in common block)
1636    o no restoring terms under ice for pkg/seaice
1637    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1638    o bug fix for pkg/seaice pickups
1639    o change MNC call locations and add coordinate attributes
1640    o mask vorticity at the corner ; affects global_ocean.cs output
1641    o fix ini_curvilinear_grid ; test CS experiments with mpi
1642    o aim.5l_cs: modify sea-ice fraction input file ; update output
1643    o exf: Adding simple range check routine for exf fields after read
1644    
1645    checkpoint52k_post
1646    o removed top-level directory "diags"
1647      - we migrated these functions to pkg/timeave a long time ago
1648    o fixed bug introduced in pkg/monitor
1649    o accuracy ctrlprec = 32 insuffient for gradient checks using
1650      averaged fields (I/O via cost_averages)
1651      -> use ctrl.h in active_file*.F to control I/O precision.
1652    o paramter list of CALL ADTHE_MAIN_LOOP
1653    o added initial do_the_model_io to ecco
1654    o set all ...Freq to zero after cost_final
1655      taveFreq, dumpFreq, pChkptFreq
1656    o MAIN and ECCO differentiability restored
1657    
1658    checkpoint52j_post
1659    o fix nchklev in tamc.h for global_ocean...
1660    o Bringing flow and store directives up-to-date
1661    o Really weird thing!
1662      call do_the_model_io from the_main_loop with parameters
1663      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1664      TAF places a faulty re-call of initialise_varia
1665      after cost_final call which should not be there!
1666    checkpoint52j_pre
1667    
1668    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1669      error messages
1670    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1671    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1672      debug output
1673    o modfied mdsio_writefield.F to handle non-global files under exch2
1674    o update AIM Cubed-Sphere exp (aim.5l_cs):
1675      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1676    o update AIM Equatorial Channel exp:
1677      use standard aim_v23 pkg and change the SST fields to be more realistic.
1678    o globalFile now works with exch2
1679    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1680      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1681    o limit timeave output for hi-res integrations
1682    
1683    checkpoint52i_post
1684    o removed CPP_EEOPTIONS.h from verification/*/code
1685    o updated the tiling for global_ocean_pressure
1686    checkpoint52i_pre
1687    
1688    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1689      the old pkg/aim).
1690    
1691    checkpoint52h_pre
1692    o shortened offending lines in exch2_send_rx?.template
1693    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1694    o genmake2: add build & execute test for NetCDF code
1695    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1696      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1697    o added useSingleCPUIO flag to monitor.F and mon_out.F
1698    o added temporary hack for sea-ice dynamics on the cube:
1699      metric terms are ignored and it is assumed that
1700      there is no sea-ice on cube faces 1, 2, 4, and 5.
1701    
1702    checkpoint52f_post
1703    o added exch2 cube routines to pkg/exch2
1704    o modified hs94.cs-32x32x5 to use it
1705    o added new grid files to hs94.cs-32x32x5
1706    checkpoint52f_pre
1707    
1708    checkpoint52e_post
1709    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1710      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1711    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1712      to work with implicit vertical advection and AB ;
1713    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1714    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1715     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1716    checkpoint52e_pre
1717    
1718    o fix bug in impldiff when Nr=1 or Nr=2.
1719    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1720    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1721    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1722      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1723    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1724    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1725    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1726    
1727    checkpoint52d_post
1728    o re-tiled many expts to allow comparison in multi-processor mode
1729      - updated output accordingly
1730      - changed hs94.128x64x5 to use intial T from file rather than use the
1731        random number generator
1732    o add infrastructure in model routines for fizhi and gridalt packages
1733    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1734    o changes to permit hi-res, cubed-sphere, configuration
1735      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1736      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1737      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1738        of surface winds for the cube
1739      (A verification experiment, based on global_ocean.cs32x15, but with
1740       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1741       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1742       complete with example surface forcing files and matlab scripts to look
1743       at the output and compare it with that of global_ocean.cs32x15.)
1744    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1745       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1746       to conform to the common rule.
1747    o check-in the first version of the coupler + interfaces for multi-components
1748       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1749       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1750       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1751       - ocean and atmos. share the same horizontal grid (no interpolation).
1752       - exchanges between component and coupler is done in forward_step
1753    o new verification experiment, cpl_aim+ocn:
1754       coupled ocean - AIM atmosphere on cs32 grid.
1755    
1756    checkpoint52d_pre
1757    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1758    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1759    
1760    checkpoint52c_post
1761    o Fixing OPTIONS files for use of exf:
1762      - ALLOW_ECCO not needed
1763      - ECCO_CPPOPTIONS.h should not be included from
1764        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1765        as has been the case in the past
1766      - All cal/exf related options are currently set in
1767        single header file. Should remain so until we
1768        agree on a consistent new policy.
1769    o Removed all CPP options for cal package.
1770      cal has no more CPP options.
1771    o modified STOREs in GAD_ADVECTION
1772    o corrected key comp. for passkey
1773    
1774    checkpoint52b_post
1775    o new version: "thsice" of thermodynamic sea-ice pkg:
1776     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1777     - modify fluxes but do not change theta directly;
1778     - light cleaning of bulk_force pkg (still needed with thsice).
1779     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1780       + output_thsice.txt to test thsice & bulk_force pkgs.
1781    o put back grid & coriolis monitor output.
1782    checkpoint52b_pre
1783    
1784    o call "do_the_model_io" at the beginning (=> dump initial state)
1785    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1786    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1787      (need info on NUMBER_OF_PTRACERS)
1788    o missing PTRACERS headers in some routines
1789    o default tamc.h in pkg/autodiff supposed to crash
1790      to ensure proper customization
1791    
1792    checkpoint52a_post
1793    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1794      - moved surfaceTendencyTice from pkg/seaice to main code
1795      - subroutine FREEZE_SURFACE now limits only surface temperature
1796        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1797        => new output.txt for global_ocean.cs32x15 & global_with_exf
1798      - keep the old version of FREEZE for backward compatibility;
1799        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1800      - corresponding modifs for TAF directives
1801    o added surface flux output variables to TIMEAVE_STATVARS
1802    o time-averaged output for pkg/ptracers
1803    o fix problem with ECCO-related divided adjoint
1804      snapshot file was missing some ad-variables,
1805      but no warning issued by TAF
1806    
1807    checkpoint52a_pre
1808    o some bug fixes for #undef REAL4_IS_SLOW
1809    
1810    checkpoint52 = ecco_c52_e35
1811    o after testing adjoints of checkpoint51u_post
1812    
1813    checkpoint51u_post
1814    o this is the post-merge tag of the ecco-branch
1815      (needs another clean checkout and re-testing)
1816    o various natl_box_adjoint configs and results
1817      but no input fields
1818    o obcs adjoint not yet merged!
1819    o adding ECCO global 1x1 and 2x2 degree configs
1820    o updated/extended some store directives for seaice
1821    o pkg/ecco now containes ecco-specific part of cost function
1822    o top level routines the_main_loop, forward_step
1823      supersede those in model/src/
1824      previous input data.cost now in data.ecco
1825      (new namelist ecco_cost_nml)
1826    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1827    
1828    checkpoint51t_post
1829    o this is the pre-merge tag of the ecco-branch
1830    
1831    checkpoint51s_post
1832    o cleanup: removed various obsolete #define-s
1833    o pkg/grdchk
1834      - renamed 'ph-grd 3' to 'grad-res'
1835      - merged from ecco-branch
1836        (remaining bug fixes for obcs gradient checks)
1837      - additional high-precision output for testreport
1838        (grep for 'precision_grdchk_result')
1839    
1840    checkpoint51r_post
1841    o cleaned up or removed CPP_OPTIONS.h files
1842    o updated results for some of the tests to reflect the new
1843      optfiles (-ieee: -O0 instead of -O3)
1844    
1845    checkpoint51q_post
1846    o cd_code:
1847      - moved cd_scheme.F -> cd_code_scheme.F
1848      - separate read_checkpoint from cd_code_ini_vars.F
1849      - separated cd_code part from write_checkpoint
1850      - updated AD_SOURCE, generated .flow
1851      - added CD_CODE_VARS.h to the_main_loop
1852      - Moving cd_code specific store dir.s to pkg/cd_code
1853    o ctrl package totally restructured
1854      - pack/unpack now optional and decoupled from
1855        xx_/adxx_ I/O
1856      - ctrl_pack/unpack cleaned
1857        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1858      - confined inclusion of AD_CONFIG.h to where necessary.
1859    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1860    
1861    checkpoint51p_post
1862    o create initial cd_code package
1863      - WARNING: the initialization of fields within packages
1864        is broken because INI_FIELDS (where READ_CHECKPOINT is
1865        called) is called *before* PACKAGES_INIT_VARIABLES.
1866        This seems to be backwards since
1867        1) its important to initially zero the entire field including
1868           the "halo" region
1869        2) zeroing needs to be done *before* reading pickup info
1870           and the pickup call might or might not happen in any
1871           particular run
1872      - this needs an overhaul for R2
1873    o cleanup verification/*/code/GMREDI_OPTIONS.h
1874    o cleanup testreport
1875    
1876    checkpoint51o_post
1877    o bringing AD-related verif's up to date with genmake2
1878      - carbon/
1879      - global_ocean.90x40x15/
1880      - hs.94.1x64x5/
1881      - (front_relax/ )
1882    o (more) consistent directory structure for AD-related verif.'s
1883    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1884    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1885    o bug fix in find_alpha.F for MDJWF:
1886      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1887        change rho -> rho-rhoConst
1888      - replace call find_rho to find_rhonum
1889    o initialisation of rFlx extended to full array (required by TAF)
1890      and shifted to thermodynamics
1891    o removed PTRACERS.h in ptracers routine
1892    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1893    o Correcting initialisations for fVerU, fVerV.
1894    o helping TAF to recognize dependency on kUp for
1895      fVerU, fVerV
1896    o Replacing delZ by delR in pkg/ctrl/
1897    checkpoint51o_pre
1898    
1899    o undid all of cp51 pending some cleanups and discussion
1900    o added the [#include "AD_CONFIG.h"] statement to all files that need
1901       it for adjoint/tl #defines
1902     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1903     o removed tools/genmake since it no longer works
1904    
1905    checkpoint51n_post
1906    o modifications to make FREEZE flux visible to pkg/kpp
1907      - moved surfaceTendencyTice from pkg/seaice to main code
1908      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1909      - subroutine FREEZE now limits only surface temperature
1910        (this means new output.txt for global_ocean.90x40x15,
1911         global_ocean.cs32x15, and global_with_exf)
1912    o added surface flux output variables to TIMEAVE_STATVARS
1913    
1914    checkpoint51n_pre
1915  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1916  o added [#include "AD_CONFIG.h"] to all files that use the following  o added [#include "AD_CONFIG.h"] to all files that use the following
1917    defines:    defines:

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