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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.773 by jmc, Wed Feb 21 00:43:39 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o rdmnc.m : some improvements in dealing with singleton dimension
8      (tested on all testreport mnc output files).
9    o genmake2: disable pkg/profiles if netcdf test fails.
10    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
11    o move call to cal_readparms up to make calendar parameters/variable available
12      to all packages
13    
14    checkpoint58v_post
15    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
16      useDynP_inEos_Zc tested.
17    o pkg/exf: changes to properly interpolate/mask/scale initial fields
18    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
19      and portions thereof.  See read_cs.txt for description and examples.
20    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
21      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
22      following the great-circle arc between those 2 points.
23    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
24      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
25    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
26     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
27     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
28     - still needs work (not working with some options ; efficiency to improve)
29       and serious testing.
30     - use this scheme for temperature & salinity in 2 advection test exp.:
31       advect_xy & advect_xz, respectively.
32    
33    checkpoint58u_post
34    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
35    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
36    o testreport: add option "-skipdir" to skip some test.
37    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
38      momentum calculation.
39    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
40    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
41      remove checkpoint.F and the_correction_step.F (no longer used);
42      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
43    o add option (linFSConserveTr) to correct for tracer source/sink due to
44      Linear Free surface
45    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
46    o pkg/thsice: fix reading mnc-pickups
47    
48    checkpoint58t_post
49    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
50    o pkg/mdsio:
51     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
52       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
53       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
54     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
55     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
56       either MDS_READ_FIELD or MDS_WRITE_FIELD )
57     - new S/R (to replace MDSWRITEMETA), which allows to write more
58       informations (variable names, time ...) to meta files.
59     - modify rdmds.m to give back the meta file content.
60    o pkg/diagnostics: change vertical interpolation to be safer, and more
61       flexible (define p-levels to interpolate to in data.diagnostics);
62      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
63       diagnostic pointer.
64    o pkg/seaice: more cleaning up of seaice_growth, added many comments
65    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
66    o fix multi-category seaice:
67     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
68       SEAICE_MULTICATEGORY
69     - fix short wave heat flux
70    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
71       and allow to use EVP solver. Change forward lab_sea: test both EVP
72       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
73    o Initial check-in of lab_sea adjoint
74      (very similar to natl_box_adjoint/code_seaice)
75      * used C-grid and EVP solver
76      * used KPP, GM/Redi
77      * uses inAdExact=.TRUE.
78      * gradient checks fail for both ADM and TLM
79        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
80        f.d. gradients actually seem more problematic than ADM, TLM gradients;
81        issue is related to forward mismatch between g77 an ifort
82    o pkg/seaice: overhaul of thermodynamics
83     - growth.F and groatb.F are replaced by new routine seaice_growth.F
84     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
85     - move a few global fields out of SEAICE.h into seaice_growth.F and
86       make them 2D (FICE/QNETO/ ...)
87     - remove FO (it is the same as QNETO)
88     - introduce a few local fields to avoid modifying external fields such
89       as atemp, etc.
90    
91    checkpoint58s_post
92    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
93      changed exf_set_gen.F so that
94        genperiod=0 means input file is one time-constant field and
95        genperiod=-12 means input file contains 12 monthly means
96    o CG2D: use pre-computed solver main-diagonal (stored in common block);
97      this affects truncation error ; generate new output file for exp. which
98      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
99        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
100        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
101        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
102        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
103        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
104    o start implementation of deep-atmosphere and anelastic formulation
105    o verification: remove 2nd copy of input files and use script "prepare_run"
106      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
107    o mom_common/vecinv/fluxform: fix a few initialisation isssues
108    o profiles: fix for multithreaded case
109    
110    o diagnostics: rename few diags:
111      s/'PRESSURE'/'RCENTER '/g
112      s/'TICE    '/'oceFreez'/g
113      s/'TAUX    '/'oceTAUX '/g
114      s/'TAUY    '/'oceTAUY '/g
115      s/'SWFLUX  '/'oceQsw  '/g
116      s/DIFx/DFxE/g
117      s/DIFy/DFyE/g
118      and add few ocean-forcing diagnostics:
119      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
120    o modifications to pkg/seaice/growth.F and budget.F, which change results of
121      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
122      as actual snow thickness.  It now refers everywhere to effective snow
123      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
124    
125    checkpoint58r_post
126    o modifications to pkg/seaice/growth.F, which change results of
127      lab_sea experiment: fixes pertain to melting snow over open water, to
128      masking EVAP under sea ice, and to using the correct AREA variable for
129      computations of EVAP, PRECIP, HSNOW, and GHEFF
130    o add ability to read bathy, salt, and theta using MNC (off by def)
131    o add flooding algorithm and advection of HSNOW for pkg/seaice;
132      both are turned off by default and do no change any results
133    o seaice advection with pkg/thsice: a step toward the use of non-linear
134      advection scheme, but #ifdef or commented out for now (requires more EXCH).
135    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
136      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
137      in natl_box (affects results @ truncation level: update output.txt)
138    o multi-threading and IO:
139      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
140      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
141        (needed to work with SingleCpuIO): tested in all verif. exp.
142    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
143      affects the results (but none of the verification test uses this scheme).
144    o Adding some pkg/diagnostics capability to pkg/seaice
145      (will certainly be subject to changes)
146    o ctrl: adding new control variables:
147      lwflux, lwdown, evap, snowprecip, apressure, runoff
148    
149    checkpoint58q_post
150    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
151      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
152      high_res_cube configuration by 4% on Columbia.
153    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
154      add (in global_with_exf/code) a version of EXF_INTERP_READ without
155      dynamical allocation (seems to work in multi-threaded).
156    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
157      single CPU io) so that TAF does not have to see EESUPPORT.h
158    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
159    
160    checkpoint58p_post
161    o obcs: stop if obcs is used with useCDscheme = .true.
162    o shelfice:
163     - fix a sign error so that no slip at shelfice interface works
164     - remove stop for combination non-hydrostatic code and shelfice. That does
165       not mean, that the results are correct, but at least they are numerically
166       stable
167    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
168    o added adjoint exch routined for all exch*3d* routines
169      and updated flow directives
170    
171    checkpoint58o_post
172    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
173      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
174    o change controling S/R for writing pickup file (new S/R do_write_pickup)
175      and clean-up reading/writing of pickup files.
176    o fix local version of read/write pickup (NH part) in rotating_tank/code
177    o simplify EXCH interface:
178     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
179     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
180    o added the regrid package
181    o shelfice:
182     - add a simple boundary layer scheme to reduce noise
183     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
184    
185    checkpoint58n_post
186    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
187       local variable (not in common block).
188    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
189      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
190      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
191        to work with SingleCpuIO.
192    o add "_d 0" to real constant of pkg/cfc subroutines ;
193       update exp. cfc_exemple & tutorial_cfc_offline output files.
194    o multi-threading and IO:
195      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
196        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
197      - barrier before and after reading.
198      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
199      - avoid using MDS_WRITELOCAL for LAND pkg output.
200      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
201        common-block variables ; Allows multi-threading with master-thread IO.
202    o change default MAX_NO_THREADS from 32 to 4 ;
203      and stop cleanly when MAX_NO_THREADS is too small.
204    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
205    
206    checkpoint58m_post
207    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
208       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
209    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
210       keep global_ocean.90x40x15 (for AD testing) with former secondary test
211       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
212    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
213        add MITgcm_tutorials (= code + all the tutorials)
214    o ecco, option to compute cost for total ssh (mean+anom)
215    o consistent with addition of ptracer and ssh in pkg/profiles
216    o profiles: adding ptracer and ssh
217    o testreport: change multi-test output-file name
218      (from output.txt.{name} to output.{name}.txt)
219    o profiles: now ok for mutli-tiles case
220    o seaice: add 4 parameters for different advection schemes for area,
221      (effective) seaice thickness, enthalphy, and snow height. Their default
222      is the standard parameter SEAICEadvScheme
223    o calc_gw:
224     - add cosFacU in zonal viscous flux (harmonic.visc.).
225     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
226       of tutorial_plume_on_slope.
227    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
228    o calc_gw: true flux-form, account for horizontal grid spacing.
229      update rotating_tank results, but not plume_on_slope (affected at
230      truncation level, 11 digits).
231    
232    checkpoint58l_post
233    o calc_gw:
234     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
235     - remove side-drag for now (need to fix it); update plume_on_slope results.
236     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
237    o commit code to make SST/SSS weights spatially variable
238      (based on either variable in-situ or variable initial T/S weights)
239    o pkg/ecco:
240      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
241        now based on horizontally varying weights wthetaLev, wsaltLev
242      * cost_averagesflags now returns year indices in addition to day, month
243      * sflux balance is performed on annual basis
244        (sflxumm, sfluxmm2, bal_sfluxmm)
245      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
246        including separate counting and multipliers
247    o pkg/rbcs
248      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
249    
250    checkpoint58k_post
251    o testreport:
252     - always build in dir. "build" (if not there, mkdir build instead of building
253       & running in input)
254     - run in dir run (if it exists), in build otherwise.
255     - call prepare_run (if input/prepare_run exists)
256     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
257    o pkg/exf modifications to interpolation and rotation routines for more
258       reasonable treatment of North Pole singularity: for tracers North Pole
259       value is set to northernmost zonal-mean value, for zonal velocity it is
260       set to zero, and for meridional velocity it is set to northernmost value.
261    o pkg/exf/exf_check_range.F
262     - add tile index to diagnostics and move stop statement to the very
263       end of the routine.
264    o pkg/diagnostics: (diagnostics_main_init.F)
265      define title of isomorphic variables according to the current config.
266    o pkg/thsice with pkg/seaice dynamics:
267    - fix domain of computation (interior only, required for exf) and do exchanges
268    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
269    o towards a standard way of dealing with multi-threading in MONITOR
270      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
271    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
272       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
273    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
274    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
275    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
276       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
277    o tracer advection:
278     - clean-up and simplify calc_common_factors.F
279     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
280       advection subroutine (but still not used within DST advection S/R)
281    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
282    
283    checkpoint58j_post
284    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
285      from file (collects calls previously in FORWARD_STEP)
286    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
287    o adjoint store dir. adjusted accordingly
288    o genmake2
289      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
290    
291    checkpoint58i_post
292    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
293      on wind stress (SEAICEstressFactor defaults to 1.)
294    o Total number of Timers is finite (<=40): comment out 2 non-essential one
295      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
296    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
297      on CS-grid: no longer loosing mass.
298    o exf & curvilinear-grid: no longer modify longitude xC & xG.
299    o pkg/ggl90: fix sloppy output and fix a bug
300    o pkg/seaice: added SEAICEuseEVPpickup parameter
301      - Set to false in order to start EVP solver with
302        non-EVP pickup files when using SEAICEuseEVP
303      - fix sign error in diffusion in seaice_calc_rhs
304    
305    checkpoint58h_post
306    * Modifications for bottom topography control
307      o replace hFacC by _hFacC at various places
308      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
309      o add non-self-adjoint cg2d_nsa
310      o update autodiff support routines
311      o re-initialise hfac after ctrl_depth_ini
312      o works for 5x5 box, doesnt work for global_ocean.90x40x15
313    * Adding verification for 5x5 box (4-layer) bottom topography control
314    
315    checkpoint58g_post
316    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
317       used for mean seasonal cycle, mean diurnal cycle); add an example
318       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
319    o pkg/ggl90:
320      - add parameter (minimum surface kinetic energy)
321      - fix bug (avoiding division by zero)
322    o couple pkg/thsice to pkg/seaice:
323      - modify advection in seaice to accomodate new scalar fields to be advected
324      - only muliDimAdection scheme work with seaice/thsice
325      - mapping of thsice-variables to seaice-variables, back and forth
326      - does not break the verification experiments, but does not give the
327        desired results either
328    o pkg/seaice
329      - make (default) second order advection a bit less confusing?
330    
331    checkpoint58f_post
332    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
333      to pkg/seaice):
334      - new routines thsice_map_exf and thsice_get_exf provide the interface
335      - add an additional formal parameter to thsice_solve4temp
336    o pkg/exf:
337      - add new fields wspeed, snowprecip (to be able to couple to thsice)
338      - correct Stefan-Boltzmann constant
339      - new parameter for longwave surface emittance
340      - separate some stuff from exf_bulkformulae into new routines  
341        exf_radiation, exf_wind
342      - add new parameters and constants: longwave emissivity for ocean, ice
343        and snow, evaporation parameters over ice
344      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
345        either wind from stress or stress from wind
346    o pkg/thSIce:
347    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
348    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
349       and THSICE_CALC_THICKN
350    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
351    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
352      to make debugging easier.
353    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
354    o pkg/bulk_force:
355      - clean-up comments and parameters ;
356      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
357    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
358      generate new output for test-experiment: aim.5l_cs.thSI
359    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
360      testreport accordingly
361    
362    checkpoint58e_post
363    o SEAICE_CGRID adjoint done
364    o R_STAR adjoint implemented.
365      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
366      * need to sort out init. of h0facc, etc.
367    o Make pkg/profile fully independent of ecco,cost, etc. stuff
368      to be able to use it in pure forward.
369    
370    checkpoint58d_post
371    o upgrade simple test-experiment to tutorial example:
372     step.1: duplicate the experiment and (step.2) will remove the old copy.
373      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
374      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
375      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
376      tutorial_global_oce_biogeo    <- copy of dic_example
377      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
378      tutorial_plume_on_slope       <- copy of plume_on_slope
379      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
380      tutorial_global_oce_optim     <- empty for now (David ?)
381      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
382     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
383    o correct a sign problem in cost_scat.F
384    o obcs and ptracers: fix boundary conditions for advections schemes
385      with larger stencil
386    o thsice adjoint: start
387    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
388      completeness
389    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
390      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
391    o ptracers adjoint:
392      * avoid extensive recomputatations
393      * fix missing re-init. of gptr (missed by TAF)
394    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
395      me to turn off the excessive output to STDOUT that this package produces
396    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
397      and add those terms in Vector-Invariant formulation.
398    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
399      if the control period (xx_hfluxperiod etc) is 0
400    o in profiles pkg, clean routines and fix details
401    o in ecco pkg, reading ssh data:
402      fix problem in case the model does not start at iter0=0
403    o fix mnc-pickup/restart for ptracers
404    o new package prifiles:
405      code to compute profile-based cost by Gael Forget
406      (modifs in ecco, ctrl, autodiff)
407    o Benign bug fix in initialization (spotted by M. Mazloff) of
408      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
409    
410    checkpoint58c_post
411    o adjoint: finish NLFS adjoint and provide reference output in
412      verification/global_ocean.90x40x15/results_ad_nlfs
413    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
414      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
415      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
416      with SEAICE_CGRID defined.
417    o move calendarDumps from "data" to "data.cal" and clean-up the code
418      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
419    o add useEXF & useCAL flags (for now, set in hard-coded way)
420    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
421      (were missing in NH mode, and wrong in quasihydrostatic mode).
422      waiting for Chris updated version of calc_gw to add those CALLs.
423    o fix bug in quasihydrostatic S/R ;
424      add a test for this option: global_ocean.90x40x15.qshyd
425    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
426      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
427    o add on/off flag useOffLine for package OFFLINE
428    o seaice:
429      - modify advection so that it works also on the C-grid
430      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
431        problem in multi-tile runs with C-grid
432      - add flags for clipping ice velocities and/or masking solver forcing
433      - fix drag (ocean on ice) formulation and a bug that caused noise in the
434        C-grid solver
435      - added a few comments to seaice_diffusion.F
436      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
437        are now exclusive)
438      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
439        required re-ordering the code a little:
440       + make DAIRN global variable (defined in SEAICE)
441       + move computation of the viscosities eta and zeta into a new separate
442         routine (because I need to recompute them in seaice_ocean_stress.F)
443    
444    checkpoint58b_post
445    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
446      update output.txt of exp. aim.5l_cs.thSI
447    o various mnc cleanups and improvements:
448      + shrink lookup tables by factor of ~4
449      + better error reporting when running out of lookup space
450      + able to handle longer path/file names (up to 500 chars)
451    o adjoint:
452      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
453      - TBD: "hidden" mom_vecinv recomp. in dynamics
454    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
455     (allow to differentiate between forcing components using new integer flags:
456      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
457     and add new flag to put Dissipation tendency out of Adams-Bashforth.
458    o ecco
459      - enable trend removal from SSH anomaly obs.
460    o adjoint
461      - a fix for PmEpR when #undef EXACT_CONSERV
462      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
463      - try to fix "hidden" recomp. in forward_step for NLFS
464        (NLFS seems broken sometimes after I checked it in)
465    o seaice:
466     - add c-grid version of the dynamic solver:
467       + three new routines that are the c-grid substitute lsr, dynsolver
468         and ostres
469       + put a few fields that were local to dynsolver into global common
470         blocks, so that I can move the computation of stresses etc into
471         seaice_lsr (saves coding but may break the adjoint).
472     - replace more hardwired parameters by runtime parameters
473     - add ice masks that mask the rhs of the implicit solvers where there
474       is no ice (commented out in seaice_dynsolver, because i am not sure
475       if this works properly), eventually this should replace the clipping
476       of ice velocities in seaice_dynsolver to +/-40cm/s.
477    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
478      include it only where its needed
479    o move balancing of fluxes before the call of external_forcing_surf
480    o seaice:
481      - correct units of turning angles (now they are really in degrees)
482      - move computation of GWATX/Y out of main routine into dynsolver
483      - initialize GWATX/Y in seaice_init
484    o Apply mask on Fresh-Water flux (needed for SSH forcing).
485      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
486    o seaice: add runtime flags for turning angles (default to zero)
487    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
488      and trend from exf forcing and ctrl control adjustments
489    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
490      (since checkpoint57x_post)
491    o change the default rotation period to 86164.s = the Earth rotation
492    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
493      and based on a reference stratification. Tested within hs94.cs-32x32x5.
494    o seaice advection: add code for choosing between the default (2nd order
495      central differences) and multiDim advection schemes provided by
496      pkg/generic_advdiff
497    o seaice:
498      - removed all references to SEAICE_GRID.h fields from
499        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
500        (cubed-sphere configuration will change a little)
501      - grid computations in seaice_init are obsolete now.
502      - cleaned up code a little so that is easier to read (hopefully).
503      - added new (better?) discretizations of default advection and diffusion
504        (turn on with SEAICEuseFluxForm)
505      - replace 1 in 3d global fields by kSurface in growth.F
506      
507    checkpoint58a_post
508    o seaice:
509      - bug fix in advect.F
510    o shelfice:
511      - separate shelfice load anomaly from pload (breaks with time
512        dependent forcing), => introduce constant field shelficeLoadAnomaly.
513        Its default is 0., but it may be computed more cleverly from (unknown)
514        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
515        done offline. A good approximation of the pressure load anomaly is
516        necessary to avoid large initial adjustment processes underneath
517        deep-reaching shelfice.
518      - small fix in ISOMIP shelfice_thermodynamics
519      - add more sophisticated thermodynamics of Hellmer (1989), this is
520        now the default
521      - give a few constants more intuitive names
522    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
523      if bulk formulae are used in long integration (especially EmPmR). Turn
524      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
525      if balancePrintMean, the imbalance that is substracted is printed to
526      STDOUT.
527    o fix bug (typo) in obcs_apply_eta.F
528    o add a new package shelfice which enables us to model the circulation
529      underneath shelf-ice with draughts of hundreds of meters.
530     - works
531     - to do: + include improved thermodynamics
532              + check whether kSurfC (from model/inc/SURFACE.h) can be used
533                instead of new field kTopC
534              + can we use topoFile, Ro_surf and existing code in ini_depth.F
535                instead of new field R_shelfIce and new code in ini_depth.F
536                and ini_mask_etc.F?
537              + adjust vertical mixing schemes?
538    o seaice pkg:
539     - add a cpp-flag to include a simple formula for a salinity dependent
540       freezing point of sea water at the surface
541     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
542       meridional stresses are now different (and hopefully correct)
543    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
544       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
545       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
546    o pkg/diagnostics: add options and parameters for regional-statistics
547       diagnostics ; define regions by reading a region-mask from a file
548       (might add other options later)
549    o pkg/bulk_force:
550     - add option and parameters to use AIM surface-flux formulae.
551     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
552       others forcing fields (defined in PARM05, parameter file "data") are loaded
553       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
554     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
555     - use the right EXCH call for uwind,vwind (to work on CS-grid).
556     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
557       and parameters (note: calcWindStress replaces .NOT.readwindstress).
558     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
559    
560    checkpoint58
561    o add "--embed-source" option to genmake2 which, when the supporting
562      tools can be compiled (as determined by genmake2) will turn on the
563      embed_files package which then embeds the entire MITgcm source code
564      (*.[fFhc] + Makefile) used for the build within the executable
565      - requested by CNH but off by default
566      - adds a paltry <9MB to the mitgcmuv executable in most cases
567      - only writes the output when useEMBEDSRC in eedata is true
568    o clean up 3-dim. relaxation codes:
569      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
570      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
571      * Thanks to Tom Haine for testing!
572    
573    checkpoint57z_post
574    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
575      affects output (@ truncation level) of exp. plume_on_slope ; updated.
576    o fix the pickup behavior for obcs in combination with ptracers
577    o fix a bug in ptracers_external_fields_load
578    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
579      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
580    o transfered surface NH pressure to eta field (if exactConserv).
581    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
582         and update lab_sea output.txt file.
583    o completing 3-dim. relaxation code: additional term
584         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
585      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
586      * At compile time, in "EXF_OPTIONS.h" set
587          #define  ALLOW_CLIMTEMP_RELAXATION
588          #define  ALLOW_CLIMSALT_RELAXATION
589      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
590          tauThetaClimRelax3Dim = 15552000.0,
591          tauSaltClimRelax3Dim  = 15552000.0,
592      * 3 cases:
593          1) Use a constant-in-time 3-dim. field
594          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
595          3) Real-time relax. to time-evolving prescribed field
596    o Adding Laplacian-type smoothness constraint on
597      initial and boundary (forcing) controls (ic, bc)
598      * enable at compile-time via
599        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
600      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
601      * Absolute scale somewhat unclear so far
602      * no area weighting was included since no other cost term does so far
603    
604    checkpoint57y_post
605    First step for a NLFS adjoint
606    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
607    o new init. routines for calc_r_star, calc_surf_dr
608    o still need to deal with ini_masks_etc
609    o testreport seemed happy
610    checkpoint57y_pre
611    
612    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
613    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
614    o add new offset feature to offline pkg (plus minor cleanup)
615    o cfc fixes for final year of integration
616    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
617      be in GCHEM_OPTIONS).
618    
619    checkpoint57x_post
620    o fix testreport Pb in multiple test experiment.
621    o cleanup our namelist syntax in verification:
622      - make it more F95 standards compliant (some work still needed)
623      - allows the vast majority of our tests to work with gfortran
624    o Non-Hydrostatic:
625     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
626     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
627    o Allow to apply AB on T,S rather than on AB(gT,gS):
628     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
629     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
630       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
631     - need a "clever" read_pickup to restart from the other AB formulation
632    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
633    o remove some unused variables (reduces number of compiler warnings)
634    o adjoint
635      * Disable useVariableViscosity for adjoint for time being
636        (there are a number of extensive recomputations)
637      * Initialize certain variables needed for adjoint
638    
639    checkpoint57w_post
640    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
641                 fix the singleCpuIO RS version of MDSWRITEFIELD
642       and add a WARNING if using globalFiles=T with multi-processors.
643    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
644      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
645    o tracer advection scheme:
646      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
647       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
648       was not very convenient).
649      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
650       (further tests needed for the implicit DST & Flux-Limiter schemes).
651    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
652      and sRef for convenience, handy, when you want to initialize
653      ptracers in a large domain with a constant non-zero value. Also,
654      untangle ptracers_init.F a little.
655    
656    checkpoint57v_post
657    o change dome exp. to use variable viscosity in side-drag terms.
658    o remove all the files from the cfc_offline test since they are now
659      incorporated into tutorial_cfc_offline which has been producing
660      identical results for a few days of testing
661    o add new parameter: sideDragFactor to enable half-slip-side BC
662      and change side-drag S/R to use viscosity from mom_calc_visc
663      (can switch back by setting sideDragFactor=0.); affects results at
664      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
665       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
666    o vorticity & strain are now computed without masking, to account for
667      no-slip-side BC in variable viscosity calculation ; mask is applied
668      anyway later on, before computing advection/coriolis terms.
669    o modify exp4 to test new obcs support for reading from external files
670      and for passive tracers
671    o fix behavior of ptracers_monitor when monitor output is written to a
672      netcdf-file; still not independent of monitor.F (writes in the same
673      file).
674    o change default value of tRef (put a uniform, meaningful value for ocean
675      & atmos) and initialize sRef (was missing, as Martin mentioned).
676    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
677      to be proportional to enstrophy dissipation length.  Thus,
678       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
679      This is now consistent with Smagorinsky and with the manual.
680    
681    checkpoint57u_post
682    o OBCS and PTRACERS: add open boundary support for passive tracers
683      - either use homogenous (pseudo) v.Neumann conditions or prescribe
684        OB-values from file; this is not different from the way theta and salinity
685        are treated
686      - however, Orlanski-radiation conditions are not supported, and the model
687        will stop if you use pTracers and Orlanski at the same time.
688      - beefed up the rountine obcs_external_fields_load: now only those open
689        boundary values are overwritten with values from files for which there
690        are really files, otherwise the OB-fields remain untouched. This makes
691        it possible to use different OBs at different ends of the domain (as
692        with EXF)
693    o reduce number of exch calls in shap_filt (s2).
694    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
695      truncation level) 4/5 MLAdjust test results (11&12 digits match).
696    
697    checkpoint57t_post
698    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
699    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
700      same truncation, independent of the face number: affects affects several
701      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
702    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
703      note that biharmonic viscosity + no-slip was not tested in any experiment.
704    o fix bug in non-linear free-surf side-drag ; generate new output for
705      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
706    o make mnc honor the writeBinaryPrec flag for most kinds of output
707    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
708    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
709      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
710    o add brackets in multi-terms sum to get same truncation, independent of
711      the face number (manage to get exactly same value of gU,gV at the cs-edge)
712      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
713    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
714      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
715      a maximum grid-scale Reynolds number.  Also, changes all length calculations
716      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
717      Suggested values of viscosity parameters found in mom_calc_visc.
718      Many new viscosity diagnostics available.
719    
720    checkpoint57s_post
721    o Add clearing-house for viscosity calculations, mom_calc_visc and
722      correct numerous bugs in LeithD and Smagorinsky discretizations.  
723      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
724      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
725      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
726      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
727      The Strain-Tension form is now called with useStrainTensonVisc=.true.
728      ViscAhStrain and viscAhTension are now retired.
729    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
730    o In response to JMC's bug report, genmake2 now ignores any soft-links
731      that it finds in the *current* directory when searching for files.
732      Soft-links found in any other source directories will still work as
733      they did before.
734    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
735      a C routine to unlimit the stack size
736    o mnc-ify pkg/aim snapshot vars
737    o mnc-ify pkg/land as requested by Daniel
738    o various changes to mnc including:
739      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
740      - output can now be grouped so that all files within a group
741          change the ITER portion of their names in lock-step together
742      - can now read ("global") PER-FACE (in addition to PER-TILE) files
743          and works with both EXCH1 and EXCH2 (but needs more testing)
744      - writing works for all verification test cases w/ g77 on Linux
745    
746    checkpoint57r_post
747    o make MNC variable initialization happen earlier
748    o add diagnostics for (almost) each term of the momentum Eq.
749    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
750    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
751    o remove MINIMAL_TAVE_OUTPUT option ;
752      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
753    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
754      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
755    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
756    o add time-dependent SST, SSS control
757    o cost terms in ecco/ modularized (new cost_generic.F)
758    o cost_averages routines are modularized (new cost_averagesgeneric.F)
759    o new infrastructure for seaice model vs. obs misfits in seaice/
760      * driver from the_main_loop.F is seaice_cost_driver.F
761      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
762      * gradient check in Exp. 6a of natl_box_adjoint/
763    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
764      (see README file)
765    
766    checkpoint57q_post
767    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
768    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
769      - bug was reported by Jean-Michel and Ian Fenty
770    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
771      update exp. cpl_aim+ocn output.
772    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
773      Needed for high-res. runs with large global files
774      to be able to limit tapelev size
775    o Changed some tests for adjoint:
776      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
777      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
778      * global_ocean.90x40x15/ back to default 3-level checkpointing
779    o Modifications to enable scripted COMMON to MODULE conversion
780      * verification/OpenAD/code/ has necessary scripts and description;
781      * converts, compiles and runs successfully;
782    
783    checkpoint57p_post
784    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
785    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
786      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
787    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
788    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
789      (was already the case for dissipation with mom_vecinv,
790       and also the case for grad.PhiHyd when staggered-timeStep)
791      This will allow to put dissipation out-off the AB time-stepping.
792     Unfortunately, affects truncation error. Update output of exp. that "fails"
793      (cg2d matching number) and leave the others for later: front_relax(10),
794      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
795      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
796    
797    checkpoint57o_post
798    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
799      (2) its ready to be documented during the 20050801 DocFest
800    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
801      for ideal_2D_oce and lab_sea on linux_ia32_g77
802    o set to #undef CTRL_SET_OLD_MAXCVARS_30
803      in global1x1_tot/code_seaice_adj to access indices 32, 33
804      (worth another tag)
805    
806    checkpoint57n_post
807    o adding precip control xx_precip 32
808    o adding swflux control xx_swflux 33
809    o Replacing 10 forcing penalty cost routines by 1 generic.
810    o Implementing partitioning in time-mean and variable adjustment
811      for atmos. state.
812    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
813    o in natl_box_adjoint:
814      * updated exp 1 to 10
815        (but does not have time-mean vs. variable split results yet)
816    o updated global1x1/*_seaice_adj/
817      to incorporate latest changes
818    o enable useSingleCpuIO for mdsio vector routines
819      (applies in particular to tapelev I/O)
820    o removed inefficient K-loop in all active_file*control*.F
821    
822    checkpoint57m_post
823    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
824      and advect_cs (use EXCH-2 and standard cs-32 grid files).
825    o pkg/exch2: filling of face-corner halo regions is optional
826      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
827    
828    checkpoint57l_post
829     tag before updating tutorials (pre-release-2)
830    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
831       for output and interpolation of input fields onto model grid)
832    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
833       Affects results of exp. rotating_tank ; update output.txt.
834    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
835          and taking the square quantity and/or using a fraction-weight field.
836    o fix aim_diagnostics_init.F mate numbers.
837    o add mnc output capability to diagnostics/diagstat and update
838      our cvsignore files for the ACSII output generated
839    
840    checkpoint57k_post
841    o lab_sea now uses diagnostics package and provides a suite of
842      new EXF diagnostics output.
843    
844    checkpoint57j_post
845    o exf
846      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
847        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
848        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
849      * extended diagnostics output
850        - now includes all EXF variables
851        - hs, hl moved to common block
852        - separate S/R for diagnostics, called after ctrl vector is added
853        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
854        - EXFqnet contains true Qnet (i.e. includes qsw)
855      * updated verif. lab_sea, global_with_exf
856      * Rearranging hflux (exf_mapfields -> exf_getforcing)
857        to ensure that diagnostics sees a true EXFqnet
858    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
859    o diagnostics pkg: change pointers so that 1 diagnostic can be used
860      several times with different frequencies.
861    o mnc-ify the thsice package as requested by Daniel Enderton
862      - the monitor--MNC output needs work
863      - many attributes need to be added (most are currently blank)
864    o mnc-ify theaim_v23 package as requested by Daniel Enderton
865      - many attributes need to be added (most are currently blank)
866    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
867    o add Sadourny like discretization to the 4th.O vorticity advection scheme
868    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
869      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
870         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
871    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
872     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
873    
874    checkpoint57i_post
875    o Diagnostics package was changed: diagnostic allocation is now deactivated
876      by setting an empty file name in the namelist (used to be by setting 0 frequency)
877    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
878      add 1rst Order upwind vertical Shear.
879    o add a quick fix for A/B checkpointing in OFFLINE mode
880    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
881      end-run around the C/Fortran linking horror in eesup/src/timers.F
882    o added pkg/runclock: allows user to terminate run based on wall clock
883    o added non-hydrostatic scaling parameter: nh_am2
884    o pkg/my82: futile attempt to make results compiler-independent by adding
885      some "_d 0", etc. no effect.
886    o for mnc output, fill the 'T' coordinate var with myTime and create a
887      separate 'iter' variable for iteration count
888    o pkg/diagnostics:
889      add new capability: output of Global/Regional & per-level statistics ;
890      tested against monitor output (including land & thSIce) on various exp.
891    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
892    
893    checkpoint57h_done
894      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
895      data.diagnostics, data.gchem, data.ptracers) is done.
896    
897    o pkg/diagnostics: prepare for Global/Regional statistics.
898      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
899    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
900      and rename it: DIFFERENT_MULTIPLE
901    
902    checkpoint57h_post
903    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
904    o pkg/diagnostics: change output frequency, now in seconds (instead
905      of Nb of iterations). This requires to change data.diagnostics.
906    checkpoint57h_pre
907    
908    o in mnc, let the user create the output dir if both mnc_outdir_date
909      and mnc_outdir_num are false
910    o add fflags() to pkg/diagnostics which allows one to specify, on a
911      per-file basis, the file precision [default behavior is unchanged]
912    o added diagnostics to pkg/kpp, including computation of mixed layer
913      depth based on a temperature/density criterion
914    o updated verification/natl_box to test the new pkg/kpp diagnostics
915    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
916    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
917    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
918      not mnc -- this mistake was found by JMC and is now corrected
919    
920    checkpoint57g_post
921    o add Adams-Bashforth 3rd Order time stepping:
922      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
923      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
924    checkpoint57g_pre
925    
926    o make lambda[Theta,Salt]ClimRelax spatially varying
927      (default remains spatially uniform constant based on tau)
928    o added new control variables
929      * init. uVel, vVel, etanN
930      * lambda[Theta,Salt]ClimRelax
931    o separate masks used for ctrl_pack/unpack 'from write_grid' output
932      (suggested by G. Forget)
933    
934    checkpoint57f_post
935    o add parameter "baseTime" = model base time = time at iteration zero
936      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
937      account for baseTime shift
938    o move Coriolis arrays from PARAMS.h to GRID.h
939    checkpoint57f_pre
940    
941    o mnc-ifying the seaice package
942    o introduced an alternative length scale calculation for use in the limiting
943      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
944    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
945    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
946      as well as grad(vort3).  Made it compatible with both approximate form
947      for the cubed sphere and full form of these gradients.  Added flag
948      useFullLeith to select between approximate and full form.  
949    o add "d0" in getcon.F to reduce differences between compilers/platforms
950      update output.txt of exp. fizhi-gridalt-hs
951    o change port_rand funtion to allow to set the seed.
952    o fix obscure MNC bug involving conversion between reals and integers
953      - it caused no problems with certain (eg. gcc, ifc) compilers but the
954        new version is now more standards-compliant
955    o adjoint-related modifications
956      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
957      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
958      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
959    
960    checkpoint57e_post
961    o Adding eddy stress controls a la Ferreira et al.
962    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
963    
964    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
965      update output.txt of exp. fizhi-gridalt-hs
966    o add more "Z" dimensions and associated coordinate vars to MNC
967    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
968    o parameter calendarDumps: when set, approximate months (30-31 days) and years
969      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
970      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
971      months and years.  Requires pkg/cal.
972    o diagnostics: add pickup functionality
973      - off by default for backwards compatibility
974      - current version only uses MDSIO -- MNC will be added
975    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
976    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
977    
978    checkpoint57d_post
979    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
980    o modify verification/ideal_2D_oce so that it tests the creation of mnc
981      output from the diagnostics package
982    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
983    o make genmake2 more portable by using ".$FS" instead of ".f" for more
984      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
985    o add coordinate variables to the MNC output from the diagnostics package
986    o change MNC-flags default value: true when useMNC=TRUE
987    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
988      the ability (off by default) to read the grid information using MNC
989    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
990    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
991    o do snap-shot diagnostics at the middle of the time-interval (instead of
992      at the end).
993    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
994      new test for AIM with thSIce + slab-ocean
995    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
996    o move state variable diagnostics to the beginning of the time step ;
997      (note: still needs some work specially for snap-shot diagnostics)
998      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
999    
1000    checkpoint57c_post
1001    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1002    o generate new output.txt files on faulks with g77 & the new -ieee option
1003    checkpoint57c_pre
1004    
1005    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1006      update output.txt of exp. global_ocean.90x40x15
1007    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1008      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1009    o add saltFlux(+File) forcing capability with periodicExternalForcing
1010    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1011    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1012    o improvements for the MNC output from DIAGNOSTICS:
1013      - correct handling of the unlimitied dimension
1014      - all dims now have associated coordinate variables
1015      - variables located at U, V, and Corner ("Z") points are now written
1016        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1017        *all* data points are output
1018    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1019    o added pkg/seaice/seaice_monitor.F
1020    o mdsio_readfield.F can now read files visible only to master MPI process.
1021    o pkg/seaice: some test code for ice-modified ocean stress
1022    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1023      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1024      spurious negative numbers for precipitation and humidity.  Will cause
1025      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1026    o pkg/ctrl/
1027      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1028        May be enabled via doPackDiag
1029      *  introduce z-scaling of
1030         + gradient (doZscalePack) and
1031         + control (doZscaleUnpack)
1032    o pkg/mdsio/
1033      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1034      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1035    
1036    checkpoint57b_post
1037    o simplify options in diagnostics_fill arguments (remove weird combinations)
1038    o fix MNC coordinate variables so that they now contain per-face index
1039      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1040      general, EXCH2 grids are only aligned to a "local" coordinate system
1041    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1042    o Implement instantaneous output within pkg diagnostics:
1043      setting a negative frequency in data.diagnostics produces
1044     "snap-shot" output (as opposed to time-average if freq > 0)
1045    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1046      NOTE: change ptracer diagnostics name: use 2 characters to work with
1047            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1048    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1049      becomes the coordinate variable for the 'T' dimension
1050    o add CF-style coordinate variables to MNC
1051      - just a first cut:  numbers are meaningless on the cubesphere and
1052        missing along the T axis but otherwise it works!
1053    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1054    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1055    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1056      this is based directly on what the model compute, so that the content of
1057      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1058    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1059    o clean up build options files for SunOS, in particular
1060      - remove -traditional from xmakedepend
1061      - change -xarch=v9 to -xarch=native for f77
1062      - restore use of make (not gmake)
1063      - add CC=gcc if using g77
1064    o changes per discussion of AM, JMC, & EH3 today:
1065      - move redundant "grid" variables out of "state" -- in preparation of
1066        creating proper CF-style coordinate variables and in recognition
1067        that any/all grid variables can be easily copied (eg. w/NCO) from
1068        the grid files into any of the other NetCDF files
1069      - *always* output grid variables with MDSIO (this will eventually be
1070        changed)
1071      - output MNC grid file if useMNC is true
1072    o every instance of _END_MASTER() has been found and replaced with
1073      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1074      preprocessors
1075    o re-arrange diagnostics pkg initialisation:
1076     - allow each package to extend the available diagnostics list
1077     - add some checking and fix small problems (multi-threaded, ...)
1078     - new S/R diagnostics_fill (replace fill_diagnostics):
1079       look through the short list of active diag. (instead of the long list)
1080       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1081    
1082    checkpoint57a_post
1083    o this set of changes restores TAMC compatibility
1084      tested for global_ocean.90x40x15 adjoint on trough
1085      (what a pain)
1086    
1087    checkpoint57a_pre
1088    o some modifs in tools/build_options for sunos
1089    o call ctrl_pack for ctrl at end for optimcycle=0
1090    
1091    checkpoint57
1092    o add horizontal bi-harmonic viscosity for vertical velocity
1093      - new parameter viscA4W (defaults to viscA4)
1094      - affects only non-hydrostatic code
1095      - to be done: no-slip lateral boundary conditions
1096    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1097    o implement Implicit Vertical advection for pTracers
1098    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1099      (implemented also for implicit vertical diffusion & advection)
1100    o OBCS: extend application of tracer open boundary conditions
1101      to a strip beyond the boundary of width Olx/Oly
1102    o add call monitor to TAF set of required calls (flow directives)
1103      and include in natl_box_adjoint
1104    o untangle a few ifdefs related to cost, ctrl, autodiff
1105      untangel a few ALLOW_ECCO_OPTIMIZATION
1106    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1107      (theta2, salt2 in ecco_cost_weights)
1108    
1109    checkpoint56c_post
1110    o OBCS as control variables
1111      - update ctrl_ad_diff.list, obcs_ad_diff.list
1112      - remove balance of obcs controls from default
1113      - fix index bug nobcs in ctrl_init
1114      - fix dummy fields filen in ctrl_pack
1115      - add dummy weights for obcs
1116    o lsopt: comment out fort.94 output
1117    o optim:
1118      - remove unnecessary header files
1119      - adjusted namelists
1120      - add xerbla.F to Makefile
1121    o exf:
1122      - multiple modifications of exf_check_range
1123      - unit change in exf_init_runoff from [m/year] to [m/s]
1124    o mdsio:
1125      - i/o-vector change debugLevel from debLevA to debLevB
1126    
1127    checkpoint56b_post
1128    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1129      is called from DO_THE_MODEL_IO
1130      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1131      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1132      - clean up PTRACERS_WRITE_TIMEAVE a little
1133    o add another verification experiment that tests both the cfc-pkg and
1134      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1135      reactive tendencies treated inline with regular timestepping
1136    o testreport previously did a lousy job of comparing small numbers, so
1137      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1138      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1139      testreport.
1140    o ptracers_monitor: bug fix for MPI
1141    
1142    checkpoint56a_post
1143    o GCHEM: finish reorganizating the package
1144      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1145        (introduces another 3D-array for each passive tracer, but only if
1146        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1147        gchemTendency is not needed because the timestep is done separately)
1148      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1149      - GCHEM is now---more or less cleanly---separate from PTRACERS
1150      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1151        so clear to me how that should be done in a general way.
1152    o CFC: improve formatting of output in CFC_ATMOS
1153    o PTRACERS:
1154      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1155        that ALL experiments with ptracers enable can be checked. This makes
1156        GCHEM_MONITOR obsolete.
1157      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1158        monitorFreq
1159      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1160    o add PTRACERS (PTR0[1-5]) to testreport output
1161    o exf_check_range:
1162      * default changed to .TRUE.
1163      * will check values for niter0 if debLevA, every timestep if debLevB
1164      * STOP in exf_check_range if 'out of range'
1165      * range chosen generous to allow for potential extema
1166      TBD: a version with stricter range
1167           permitted range would be runtime parameters
1168    o GMredi:
1169      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1170      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1171      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1172    o GCHEM:
1173      - move call to GCHEM_FORCING_SEP, so that it is now called before
1174        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1175      - introduced a useGCHEM runtime flag and applied it everywhere.
1176      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1177        this flag is now only visible within GCHEM-pkg routines.
1178      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1179        be replaced by a 3D array that is computed before thermodynamics; for
1180        this, the tracer ID iTracer had to be included into the parameter list
1181        of ptracers_forcing
1182      - set up forward_step to call gchem_forcing, that will replace
1183        gchem_forcing_int in ptracers_forcing
1184      - cleaning up
1185    o small cleaning of exch2: remove files that are also in eesupp/src
1186    
1187    checkpoint56
1188    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1189    o mnc: cleanup "full" files--fixes out-of-memory problem
1190    o ECCO-GODAE
1191      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1192      * fully merged and updated from SIO code
1193        windstress sign change affects
1194        - exf_inscal_[u/v]stress
1195        - sign of xx_tau[u/v] adjustments
1196        - signs in cost_scat
1197      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1198      * natl_box_adjoint updated and compressed
1199      * 2-level checkpoint switch added
1200        (tested in EXP. 1 of natl_box_adjoint)
1201      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1202    o SVD
1203      * first complete, non-hacked version for SVD calculations
1204      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1205        performed via direct access files admtlm_vector.it????
1206        (via ctrl_[un]pack)
1207      * optimcycle is used for ARPACK iteration counter
1208        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1209      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1210        and add linear transforms where necessary
1211      * controls are initial/final SST, SSS (can be extended; need to check
1212        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1213    o mdsio: filename info to both stderr, stdout
1214    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1215      from sign change
1216    
1217    checkpoint55j_post
1218    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1219      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1220    o add consistent build directories and .cvsignore files to verification
1221    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1222    o make all subroutines 30 or less characters in length for certain older
1223      compilers to work (a thorough search only turns up two routines in
1224      pkg/ptracers)
1225    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1226      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1227    
1228    checkpoint55i_post
1229    o change arrays for total vertical diffusivity (2.D if explicit,
1230      3.D if implicit) ; each ptracer uses its own background value.
1231    o added mnc/NetCDF output capability to ocn_compon_interf
1232      - added bits to verification/cpl_aim+ocn so that it can run on
1233        ITRDA and other clusters without the mpirun "-wd" option
1234    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1235      configuration
1236    o give MNC the ability to create additional files rather than
1237      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1238      - the default is just less than 2GB which is a practical limit
1239        on many systems
1240    o Compute the non-local term using either KPP vertical diffusivity (=default)
1241       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1242    
1243    checkpoint55h_post
1244    o add verification test "vermix"
1245    o remove all the *_ioinc flags and replace with the single global
1246      outputTypesInclusive flag
1247    o allow to set a vertical profile of vertical diffusivity for T & S
1248    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1249    o useMNC moved from data.mnc to data.pkg
1250    
1251    checkpoint55g_post
1252    o Renaming carbon AD experiments to comply with testreport conventions
1253    o Updating adjoint of Held-Suarez hs94.1x64x5
1254    o Fixing directives for non-ECCO forward_step, after ECCO directives
1255      have been fixed to avoid recomp. of do_oceanic_phys
1256      Works well for global_ocean.90x40x15,
1257      but recomp. issue remains for carbon
1258    o Updating adjoint output for natl_box_adjoint after
1259      pkg/ecco has been modified (see taga c55d_post)
1260    
1261    checkpoint55f_post
1262    o rename to timeave_init_fixed
1263    
1264    checkpoint55e_post
1265    o some delicate re-shuffle of store directives to avoid one
1266      extra call of do_oceanic_physics
1267      affects ecco_the_main_loop.F, do_oceanic_physics.F
1268      checkpoint_lev1_directives.h
1269    o NB: this may break global_ocean adjoint temporarily,
1270      but it is clear how to fix it. Will do later, need this now.
1271    
1272    checkpoint55d_post
1273    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1274    o ecco_cost_weights is modified to 1x1 runs
1275    o modifs to allow observations to be read in as
1276      single file or yearly files
1277    o enable to read exf forcing fields as either
1278      single file or yearly files (flag useExfYearlyFields)
1279    checkpoint55d_pre
1280    
1281    o switch between 2-level and 3-level checkpointing
1282    o add ability of MNC to write local and "partial" (eg. 2D slices where
1283      the full 3D field is never actually stored) arrays to NetCDF files
1284      with the correct (that is, the complete multi-dimensional) set of
1285      array indicies
1286      - used in mom_vecinv() to write the diagFreq output
1287      - tested (demonstrated) in verification/aim.5l_cs
1288    o further mnc-ification
1289      - add verification/lab_sea to the list with mnc setups
1290      - fix undefined mnc v-names in cd_code
1291      - add kpp to mnc output (both snapshot and timeave)
1292    o non-hydrostatic code
1293      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1294        in calc_gw.F
1295      - defaults to viscAh
1296      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1297        friction or Leith) in non-hydrostatic mode, as long as there is
1298        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1299    o pkg/cost
1300      extend simple cost functions to treat time mean quantities
1301      (T,U,V) via cost_accumulate_state from cost_tile
1302    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1303        be 2 times larger than the minimum size the advection scheme requires.
1304        now get a perfect conservation of salt in advect_cs test-exp (updated)
1305    o GGL90 (Gaspar's TKE mixed layer)
1306      - add horizontal diffusion of TKE, requires exchanges in
1307        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1308        default. In OPA there is no horizontal diffusion of TKE but the
1309        mixing coefficients are computed from a horizontal average of TKE of
1310        6 points or so. I think that diffusion has a little more physical
1311        justification.
1312      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1313        was in vain)
1314      - mask tke-variable in ggl90_init
1315    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1316    o fix biharmonic diffusion on CS-grid.
1317    o more obcs stuff
1318      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1319        for reading boundary values. This routine is called from
1320        obcs_prescribe_read
1321      - updated obcs_check
1322      - changed sponge layer relaxation parameter units for days to seconds
1323      - turned off sponge layer by default
1324      - changed argument list of OBCS_CALC to myTime+deltaTclock
1325      - fixed about 35 bugs in obcs_external_fields_load
1326    
1327    checkpoint55c_post
1328    o obcs stuff
1329      - new runtime flags useOBCSprescribe, useOBCSbalance
1330      - re-arranged obcs_calc
1331      - moved exf_getobcs to obcs_prescibe_read
1332        obcs_prescibe_read is called after ORLANSKI stuff
1333        and independent of it (executable can contain all).
1334      - updated obcs_check
1335      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1336        These may be necessary only if tangential velocities are
1337        prescribed at OB, not sure, needs testing.
1338    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1339      which simplifies the calls and passes the ifc check-bounds test
1340    
1341    checkpoint55b_post
1342    o add a 2D scalar, Z location, exchange_2 routine.
1343    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1344      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1345      affects advect_cs results (for the wrong reason): update output.txt
1346    o use a more standard discretization for biharmonic viscosity ;
1347     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1348      affects results of dome set-up: update output.txt
1349    o fix gad_advection.F (CubedSphere part), back to version 1.23
1350    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1351    
1352    checkpoint55a_post
1353    o merged code to
1354      * prescribe/read time-dependent open boundaries
1355        (works in conjunction with exf, cal)
1356      * sponge layer code for open boundaries
1357      * each boundary N/S/E/W now has its own CPP option
1358        (healthy for the adjoint)
1359    
1360    checkpoint55
1361    o up-to-date adjoint of previous breaks
1362      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1363      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1364      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1365      - carbon: * remove tr1-related adjoint verification
1366                * add ptracer as control variable
1367    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1368      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1369    
1370    checkpoint54f_post
1371    o in verification/carbin/ remove experiment related to
1372      ALLOW_PASSIVE_TRACER (array tr1 etc)
1373      code_ad/ input_ad/ results_ad
1374    
1375    o add two new packages
1376      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1377        + subject to optimization (memory)
1378      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1379        + subject to reordering (many GOTOs in the original code)
1380        + so far opps is called for every (i,j) point, and then operates in
1381          the vertical; one may want to reorder the scheme in order operate in
1382          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1383          fields)
1384    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1385      - all verification tests compile and run with linux_ia32_g77
1386      - defaults are compatible with current input files--nothing
1387        should change if you were not previously using MNC
1388      - MNC output has been added in numerous places (eg. timeave)
1389        but there are still a few writes not yet do-able with MNC
1390        (this is in progress)
1391      - flags now allow for either/or/both use of MDSIO and MNC and
1392        documentation will soon follow
1393      - numerous small formatting cleanups for ProTeX
1394    o add version info (via BUILD_INFO.h) to MNC and stdout
1395    
1396    checkpoint54e_post
1397    o add two new packages
1398      - pp81 (Packanowski and Philander, 1981), Richardson number and
1399        stratification dependent mixing
1400      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1401      - these scheme operate in a similar manner as KPP (without ghat, of
1402        course), however there is only one diffusivity that is used for both
1403        temperature and salinity (and passive tracers)ç
1404    o add offline package
1405    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1406      provided by Stephanie Dutkiewicz
1407    o genmake2: add ability to search for C compilers and cleanup test output
1408      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1409    
1410    checkpoint54d_post
1411    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1412    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1413      leading to additional shift by 5 days each year of integration
1414       (i.e. leading to considerable offset over the years)
1415    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1416    o start with no AB and no initial filtering (staggerTimeStep):
1417      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1418    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1419      (external loading & cpl import/export stay in forward_step.F)
1420    o update coupling interface to work with new staggerTimeStep
1421    o change MDSIO ptracers_pickup.
1422    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1423    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1424    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1425    
1426    checkpoint54c_post
1427    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1428      this affects (truncation error) output.txt of test-exp:
1429       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1430    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1431    o change Qnet to always be the net heat flux, (+upward).
1432      affects (truncation error) output of natl_box exp.: updated
1433    o define the max number of passive tracers in PTRACERS_SIZE.h
1434    o start to test mnc routinely in exp0
1435    o add sea-ice loading (sIceLoad) as a new forcing field.
1436    
1437    checkpoint54b_post
1438    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1439       impressive on Altix and Opteron systems)
1440    o diagnostics can now write NetCDF files through the mnc package
1441    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1442    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1443    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1444      affects (truncation error) output of lab_sea & natl_box exp.: updated
1445    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1446    
1447    checkpoint54a_post
1448    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1449    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1450    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1451    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1452      + internal_wave (shift in writing cg2d_ini_res)
1453    checkpoint54a_pre
1454    
1455    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1456      - modified verification/lab_sea and natl_box_adjoint accordingly
1457    
1458    checkpoint54
1459    checkpoint53g_post
1460    o prepare splitting of thermodynamics: store convect.counter in common block
1461    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1462      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1463    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1464    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1465    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1466    o restore adjointability
1467    
1468    checkpoint53f_post
1469    o modifications that affect AIM experiment results (update output.txt):
1470      - no advection of S at top interface Nr (pkg/generic_advdiff)
1471      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1472    o AIM pkg:
1473      - include stability function into surf.Flux derivative relative to Tsurf
1474      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1475    
1476    checkpoint53e_post
1477    o merged cylindrical coord configuration
1478    o added rotating_tank experiment
1479    checkpoint53e_pre
1480    
1481    checkpoint53d_post
1482    o faulks upgraded: re-generate output.txt that have changed:
1483       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1484    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1485    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1486    o added Sadourny discretization of Coriolis
1487      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1488      - re-enabled use of omega3 (useAbsVorticity)
1489    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1490      vector-invariant equations
1491      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1492    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1493      hopefully without new bugs
1494      - still to do: biharmonic friction for non-hydrostatic w
1495    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1496    o regenerated output for global_ocean_ebm (using -ieee)
1497    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1498      of mom_common/
1499      - simple re-arrangement of instructions within computing loop
1500    checkpoint53d_pre
1501    
1502    checkpoint53c_post
1503    o new version of coupler for AIM+thSIce and Ocean models
1504     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1505     - land: change Evaporation of snow
1506     - aim with thSIce: fix bug in snow-precip.
1507    o changes to calc_gw.F
1508     - bug fix for w^2 term near the bottom boundary
1509     - (hopefully) improve the lateral slip boundary condtions for use with
1510        partial/looped cells
1511      - because the bug fix changes two verification experiments anyway (exp5
1512        and plume on slope), change the lateral boundary condition from half slip
1513        to the value of no_slip_sides
1514    o ebm package wasnt quite up to the parallel task. Fixed that.
1515    o Adjoint of EBM package + verification
1516      * TLM OK
1517      * ADM not sufficient accuracy yet (needs further testing)
1518    
1519    checkpoint53b_post
1520    o Commiting new energy balance model to repository
1521      * package is pkg/ebm
1522      * verif. is verification/global_ocean_ebm
1523      * references are in ebm_driver.F
1524    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1525    C        Global thermohaline circulation. Part I:
1526    C        Sensitivity to atmospheric moisture transport.
1527    C        J. Climate 12(1), 71-82
1528    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1529    C        Global thermohaline circulation. Part II:
1530    C        Sensitivity with interactive transport.
1531    C        J. Climate 12(1), 83-91
1532    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1533    C        Destabilization of the thermohaline circulation
1534    C        by atmospheric eddy transports.
1535    C        J. Climate 7(12), 1870-1882
1536    o Will need long integration testing.
1537    checkpoint53b_pre
1538    
1539    o created pkg/mom_common in preparation for variable viscosity code
1540    o renamed and split ini_mnc_io
1541    o pkg/land: only liquid water can diffuse or run-off
1542    o AIM using land: soil wetness availability account for snow
1543    o added printMapIncludesZeros to EEPARMS namelist
1544    
1545    checkpoint53a_post
1546    o restore TAMC compatiility for exf_constants.h
1547      (no usage of _d in .h)
1548    o Additional storing in KPP in an attempt to fix
1549      TAMC problem with adjoint of KPP code.
1550      (no success...)
1551      Identical code works fine with TAF.
1552    o Fixed verification/natl_box_adjoint experiments.
1553      Initial conditions for Experiments 4 and 5 are now
1554      set to "SEAICE_initialHEFF=0", which is more reasonable,
1555      and hence gives results closer to that of Experiment 2.
1556      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1557    
1558    checkpoint53
1559    o stable checkpoint with up to date adjoint
1560      TLM tests only run for 1st grdchk at the moment. Its unclear if
1561      this is a code problem or a problem with resetting code for g_
1562      variables that is being autogenerated wrong.
1563      Otherwise:
1564       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1565       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1566         are both still in chaos following their security messes.
1567    
1568    checkpoint52n_post
1569    o various build (mostly genmake2) changes including:
1570      - ability to build/run more easily within Cygwin and MacOS X
1571      - more complicated Makefiles with a stronger dependence on Gnu Make
1572    o pkg/seaice modifications
1573      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1574        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1575        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1576      - changed proxy for geostrophic velocity and updated
1577        verification/lab_sea/results/* accordingly
1578      - removed ADI dynamic solver from pkg/seaice
1579      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1580        they caused a segmentation fault under certain circumstances
1581      - removed unused field WATR
1582    o bug fix in exf-package:
1583      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1584         now reflect that.
1585    o small fixes in the cal-package:
1586      - set reference date to first of January for the 'model'-calendar
1587      - failing of cal_CheckDate in cal_FullDate now actually results in a
1588        warning
1589    o small modifications in exf-package to increase flexibility:
1590      - change climtempfreeze from a constant to a runtime parameter that
1591        is specified in data.exf_clim (default = -1.9)
1592      - introduce runtime parameter windstressmax (default = 2.0) that is
1593        specified in data.exf
1594    o fix in pkg/thsice:
1595      - update Evap (Tsf changes) to be consistent with Latent heat flux
1596      - maintain snow precipitation unchanged (even if Tsf >=0).
1597     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1598    
1599    checkpoint52m_post
1600    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1601      this does not change any of the results, because myIter=0 in swfrac always
1602      lead to jwtype=2 (the default anyway), but the call makes little sense
1603      as a default
1604    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1605    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1606      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1607    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1608    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1609    o extending useSingleCpuIO option to work with new exch2 I/O format
1610      - old-style, missing-tile I/O is still accessible by defining CPP
1611        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1612    o monitor package can write to NetCDF files and/or STDOUT
1613    o fix re-definition bug in MNC_GRID_INIT_ALL()
1614    o doc/api_reference added
1615      - a framework for building an API Reference Manual using all
1616        the "protex" comments embedded in the code
1617      - see pkg/generic_advdiff, pkg/mnc for examples
1618    o MNC:
1619      - make myThid the last argument for all subroutines
1620      - new default for the grid files: NO halos
1621      - add useMNC and other run-time flags
1622      - separate per-file-group handling of the unlimited dimension
1623      - early initialization of MNC w/ flags read at the eeboot stage
1624        and lookup tables set in initialize_fixed
1625      - write all MNC output to a freshly-created directory
1626    o thermodynamics sea-ice (thsice) is now tested with testreport.
1627    o test exp. advect_cs: use the standard cs32 grid ; update output.
1628    o Added functionality to grdchk:
1629      pick global i,j,k position (or nearest wet) where to perform check.
1630    
1631    checkpoint52l_post
1632    o new land formulation:
1633      a) use ground enthalpy as prognostic variable to ensure exact
1634         energy conservation.
1635      b) account for water temperature and for latent heat of freezing
1636         in all processes (rain, run-off, ground storage)
1637      c) compute surface and ground temperature implicitly.
1638    o aim_v23 modification for new land model:
1639      a) Treat separately land / ocean / sea-ice surface fluxes
1640         to allow implicit computation of land & sea-ice surface temp.
1641      b) add snow precipitation.
1642    checkpoint52l_pre
1643    
1644    o fix problem (when 1 tile is empty) in min/max monitor.
1645    o fix bug in timeAve (u,vZetatave in common block)
1646    o no restoring terms under ice for pkg/seaice
1647    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1648    o bug fix for pkg/seaice pickups
1649    o change MNC call locations and add coordinate attributes
1650    o mask vorticity at the corner ; affects global_ocean.cs output
1651    o fix ini_curvilinear_grid ; test CS experiments with mpi
1652    o aim.5l_cs: modify sea-ice fraction input file ; update output
1653    o exf: Adding simple range check routine for exf fields after read
1654    
1655    checkpoint52k_post
1656    o removed top-level directory "diags"
1657      - we migrated these functions to pkg/timeave a long time ago
1658    o fixed bug introduced in pkg/monitor
1659    o accuracy ctrlprec = 32 insuffient for gradient checks using
1660      averaged fields (I/O via cost_averages)
1661      -> use ctrl.h in active_file*.F to control I/O precision.
1662    o paramter list of CALL ADTHE_MAIN_LOOP
1663    o added initial do_the_model_io to ecco
1664    o set all ...Freq to zero after cost_final
1665      taveFreq, dumpFreq, pChkptFreq
1666    o MAIN and ECCO differentiability restored
1667    
1668    checkpoint52j_post
1669    o fix nchklev in tamc.h for global_ocean...
1670    o Bringing flow and store directives up-to-date
1671    o Really weird thing!
1672      call do_the_model_io from the_main_loop with parameters
1673      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1674      TAF places a faulty re-call of initialise_varia
1675      after cost_final call which should not be there!
1676    checkpoint52j_pre
1677    
1678    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1679      error messages
1680    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1681    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1682      debug output
1683    o modfied mdsio_writefield.F to handle non-global files under exch2
1684    o update AIM Cubed-Sphere exp (aim.5l_cs):
1685      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1686    o update AIM Equatorial Channel exp:
1687      use standard aim_v23 pkg and change the SST fields to be more realistic.
1688    o globalFile now works with exch2
1689    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1690      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1691    o limit timeave output for hi-res integrations
1692    
1693    checkpoint52i_post
1694    o removed CPP_EEOPTIONS.h from verification/*/code
1695    o updated the tiling for global_ocean_pressure
1696    checkpoint52i_pre
1697    
1698    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1699      the old pkg/aim).
1700    
1701    checkpoint52h_pre
1702    o shortened offending lines in exch2_send_rx?.template
1703    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1704    o genmake2: add build & execute test for NetCDF code
1705    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1706      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1707    o added useSingleCPUIO flag to monitor.F and mon_out.F
1708    o added temporary hack for sea-ice dynamics on the cube:
1709      metric terms are ignored and it is assumed that
1710      there is no sea-ice on cube faces 1, 2, 4, and 5.
1711    
1712    checkpoint52f_post
1713    o added exch2 cube routines to pkg/exch2
1714    o modified hs94.cs-32x32x5 to use it
1715    o added new grid files to hs94.cs-32x32x5
1716    checkpoint52f_pre
1717    
1718    checkpoint52e_post
1719    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1720      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1721    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1722      to work with implicit vertical advection and AB ;
1723    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1724    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1725     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1726    checkpoint52e_pre
1727    
1728    o fix bug in impldiff when Nr=1 or Nr=2.
1729    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1730    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1731    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1732      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1733    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1734    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1735    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1736    
1737    checkpoint52d_post
1738    o re-tiled many expts to allow comparison in multi-processor mode
1739      - updated output accordingly
1740      - changed hs94.128x64x5 to use intial T from file rather than use the
1741        random number generator
1742    o add infrastructure in model routines for fizhi and gridalt packages
1743    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1744    o changes to permit hi-res, cubed-sphere, configuration
1745      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1746      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1747      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1748        of surface winds for the cube
1749      (A verification experiment, based on global_ocean.cs32x15, but with
1750       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1751       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1752       complete with example surface forcing files and matlab scripts to look
1753       at the output and compare it with that of global_ocean.cs32x15.)
1754    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1755       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1756       to conform to the common rule.
1757    o check-in the first version of the coupler + interfaces for multi-components
1758       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1759       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1760       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1761       - ocean and atmos. share the same horizontal grid (no interpolation).
1762       - exchanges between component and coupler is done in forward_step
1763    o new verification experiment, cpl_aim+ocn:
1764       coupled ocean - AIM atmosphere on cs32 grid.
1765    
1766    checkpoint52d_pre
1767    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1768    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1769    
1770    checkpoint52c_post
1771    o Fixing OPTIONS files for use of exf:
1772      - ALLOW_ECCO not needed
1773      - ECCO_CPPOPTIONS.h should not be included from
1774        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1775        as has been the case in the past
1776      - All cal/exf related options are currently set in
1777        single header file. Should remain so until we
1778        agree on a consistent new policy.
1779    o Removed all CPP options for cal package.
1780      cal has no more CPP options.
1781    o modified STOREs in GAD_ADVECTION
1782    o corrected key comp. for passkey
1783    
1784    checkpoint52b_post
1785    o new version: "thsice" of thermodynamic sea-ice pkg:
1786     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1787     - modify fluxes but do not change theta directly;
1788     - light cleaning of bulk_force pkg (still needed with thsice).
1789     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1790       + output_thsice.txt to test thsice & bulk_force pkgs.
1791    o put back grid & coriolis monitor output.
1792    checkpoint52b_pre
1793    
1794    o call "do_the_model_io" at the beginning (=> dump initial state)
1795    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1796    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1797      (need info on NUMBER_OF_PTRACERS)
1798    o missing PTRACERS headers in some routines
1799    o default tamc.h in pkg/autodiff supposed to crash
1800      to ensure proper customization
1801    
1802    checkpoint52a_post
1803    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1804      - moved surfaceTendencyTice from pkg/seaice to main code
1805      - subroutine FREEZE_SURFACE now limits only surface temperature
1806        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1807        => new output.txt for global_ocean.cs32x15 & global_with_exf
1808      - keep the old version of FREEZE for backward compatibility;
1809        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1810      - corresponding modifs for TAF directives
1811    o added surface flux output variables to TIMEAVE_STATVARS
1812    o time-averaged output for pkg/ptracers
1813    o fix problem with ECCO-related divided adjoint
1814      snapshot file was missing some ad-variables,
1815      but no warning issued by TAF
1816    
1817    checkpoint52a_pre
1818    o some bug fixes for #undef REAL4_IS_SLOW
1819    
1820    checkpoint52 = ecco_c52_e35
1821    o after testing adjoints of checkpoint51u_post
1822    
1823    checkpoint51u_post
1824    o this is the post-merge tag of the ecco-branch
1825      (needs another clean checkout and re-testing)
1826    o various natl_box_adjoint configs and results
1827      but no input fields
1828    o obcs adjoint not yet merged!
1829    o adding ECCO global 1x1 and 2x2 degree configs
1830    o updated/extended some store directives for seaice
1831    o pkg/ecco now containes ecco-specific part of cost function
1832    o top level routines the_main_loop, forward_step
1833      supersede those in model/src/
1834      previous input data.cost now in data.ecco
1835      (new namelist ecco_cost_nml)
1836    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1837    
1838    checkpoint51t_post
1839    o this is the pre-merge tag of the ecco-branch
1840    
1841    checkpoint51s_post
1842    o cleanup: removed various obsolete #define-s
1843    o pkg/grdchk
1844      - renamed 'ph-grd 3' to 'grad-res'
1845      - merged from ecco-branch
1846        (remaining bug fixes for obcs gradient checks)
1847      - additional high-precision output for testreport
1848        (grep for 'precision_grdchk_result')
1849    
1850    checkpoint51r_post
1851    o cleaned up or removed CPP_OPTIONS.h files
1852    o updated results for some of the tests to reflect the new
1853      optfiles (-ieee: -O0 instead of -O3)
1854    
1855    checkpoint51q_post
1856    o cd_code:
1857      - moved cd_scheme.F -> cd_code_scheme.F
1858      - separate read_checkpoint from cd_code_ini_vars.F
1859      - separated cd_code part from write_checkpoint
1860      - updated AD_SOURCE, generated .flow
1861      - added CD_CODE_VARS.h to the_main_loop
1862      - Moving cd_code specific store dir.s to pkg/cd_code
1863    o ctrl package totally restructured
1864      - pack/unpack now optional and decoupled from
1865        xx_/adxx_ I/O
1866      - ctrl_pack/unpack cleaned
1867        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1868      - confined inclusion of AD_CONFIG.h to where necessary.
1869    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1870    
1871    checkpoint51p_post
1872    o create initial cd_code package
1873      - WARNING: the initialization of fields within packages
1874        is broken because INI_FIELDS (where READ_CHECKPOINT is
1875        called) is called *before* PACKAGES_INIT_VARIABLES.
1876        This seems to be backwards since
1877        1) its important to initially zero the entire field including
1878           the "halo" region
1879        2) zeroing needs to be done *before* reading pickup info
1880           and the pickup call might or might not happen in any
1881           particular run
1882      - this needs an overhaul for R2
1883    o cleanup verification/*/code/GMREDI_OPTIONS.h
1884    o cleanup testreport
1885    
1886    checkpoint51o_post
1887    o bringing AD-related verif's up to date with genmake2
1888      - carbon/
1889      - global_ocean.90x40x15/
1890      - hs.94.1x64x5/
1891      - (front_relax/ )
1892    o (more) consistent directory structure for AD-related verif.'s
1893    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1894    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1895    o bug fix in find_alpha.F for MDJWF:
1896      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1897        change rho -> rho-rhoConst
1898      - replace call find_rho to find_rhonum
1899    o initialisation of rFlx extended to full array (required by TAF)
1900      and shifted to thermodynamics
1901    o removed PTRACERS.h in ptracers routine
1902    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1903    o Correcting initialisations for fVerU, fVerV.
1904    o helping TAF to recognize dependency on kUp for
1905      fVerU, fVerV
1906    o Replacing delZ by delR in pkg/ctrl/
1907    checkpoint51o_pre
1908    
1909    o undid all of cp51 pending some cleanups and discussion
1910    o added the [#include "AD_CONFIG.h"] statement to all files that need
1911       it for adjoint/tl #defines
1912     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1913     o removed tools/genmake since it no longer works
1914    
1915    checkpoint51n_post
1916    o modifications to make FREEZE flux visible to pkg/kpp
1917      - moved surfaceTendencyTice from pkg/seaice to main code
1918      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1919      - subroutine FREEZE now limits only surface temperature
1920        (this means new output.txt for global_ocean.90x40x15,
1921         global_ocean.cs32x15, and global_with_exf)
1922    o added surface flux output variables to TIMEAVE_STATVARS
1923    
1924    checkpoint51n_pre
1925    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1926    o added [#include "AD_CONFIG.h"] to all files that use the following
1927      defines:
1928      - ALLOW_ADJOINT_RUN
1929      - ALLOW_TANGENTLINEAR_RUN
1930      - ALLOW_ECCO_OPTIMIZATION
1931    
1932    checkpoint51m_post
1933    o incorporating changes to get TAMC/TAF working in genmake2
1934      - added new TAMC/TAF targets to the Makefile
1935      - various cleanups related to package handling
1936      - these changes should have no impact on the forward model
1937    
1938    checkpoint51l_post
1939    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1940     - faster algorithm for cal_addtime.F
1941     - higher precision arithmetic, where needed
1942     - pkg/exf *startdate variables changed from calendar date to
1943       model integration time
1944    
1945    checkpoint51l_pre
1946    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1947    o enable to apply restoring on S & T only in a latitude band.
1948    o update output (external_forcing_surf modif. change truncation errors)
1949       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1950    
1951    checkpoint51k_post
1952    o change default to: useNHMTerms=.FALSE.
1953     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1954       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1955     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1956        exp1, ideal_2D_oce
1957     - change data file of oceanic exp (leave the results unchanged for now)
1958       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1959    o set gravitySign automatically according to the vertical coordinate used
1960      (and change sign: back to "logical" value: +1 when R increases downward)
1961    o added an include barrier to the default CPP_OPTIONS.h and
1962      removed the #include "PACKAGES_CONFIG.h" from it
1963    o fix a bug in mom_fluxform (from chk51j_post)
1964    
1965    checkpoint51j_post
1966    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1967    o adjusted some flow directives (dynamics, thermodynamics)
1968    o added cubed-sphere case to test cost function
1969    o heckpoint_lev?_directives.h now include
1970      pkg-specific directives, whenever those are enabled.
1971    o Moving pkg-specific flow directives to corresponding pkg
1972      Moving pkg-specific differentiation list to corresponding pkg
1973      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1974      ---> conventions are
1975           - pkg_ad.flow
1976           - pkg_ad_diff.list
1977           - pkg_ad_check_lev?_dir.h
1978    
1979    checkpoint51i_post
1980    o merge of the branch-genmake2
1981      - knowingly breaks the older genmake
1982      - automatic generation of all ALLOW_${PKG_NAME} defines
1983      - new testreport supersedes older testscript
1984    o large number of package inclusion and header cleanups
1985    checkpoint51i_pre
1986    
1987    o new output for adjoin of global ocean vector invariant
1988    o fix for checkpoint of thermodynamic seaice and bulk_force
1989    o Steph gchem various cleanups
1990    
1991    checkpoint 51h_pre
1992    o fixed some single quotes
1993    o modify gchem pkg to be more versatile
1994    o modifications to clean up dic pkg
1995    o add pkg/cfc
1996    
1997    checkpoint51g_post
1998    o provide links for ARPACK and ADM*TLM
1999    o start removing verification/vero/
2000    o update AD-related stuff
2001      (in particular some IF-statements in model/src/ routines)
2002    o adding to verification/global_ocean.90x40x15/ adjoint of
2003      vector invariant setup
2004    
2005    checkpoint51f_post
2006    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2007    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2008      of tracer Green's fucntions for ocean inversion project.
2009    
2010    checkpoint51f_pre
2011    o Added on-the-fly spatial interpolation capability
2012        "USE_EXF_INTERPOLATION" to pkg/exf.
2013      - This is a temporary Cartesian-grid hack until
2014        the super-duper ESMF coupler becomes available.
2015      - See verification/global_with_exf/README for usage example.
2016      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2017        flags and modified pkg/seaice accordingly.
2018    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2019        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2020        non-local transport term.
2021    
2022    checkpoint51e_post
2023    o pkg/mom_vecinv:
2024      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2025      - add time-ave diagnostic of vorticity advection.
2026    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2027    o atmospheric geopotential: - include water vapor effect;
2028                                - use p^kappa in p* scaling.
2029    o land pkg: read initial state from files.
2030    o AIM : add stratospheric drag in the upper level
2031    
2032    checkpoint51d_post
2033    o change function ILNBLNK (=> last non-blank char.) to return zero
2034      (instead of the string length) when the string. char is empty
2035    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2036    o modif's to restore TAMC compatibility
2037      - avoid "_d" constructs in PARAMETER declarations
2038      - avoid interrupting lines by comment lines
2039    o Use cluster local disks for purely local I/O
2040      vs. globally visible disks needed for ctrl stuff
2041      (merged from ecco-branch)
2042      - new active_file_loc... and mdsio_..._loc routines
2043      - affected packages: autodiff, ctrl, grdchk, mdsio
2044    
2045    checkpoint51c_post
2046    o introducing integer flag debugLevel
2047      - debLevZero: suppress all output
2048      - debLevA: standard
2049      - debLevB: equivalent to current debugMode=.TRUE.
2050    o introducing pathname variable mdsioLocalDir for mdsio
2051      that can be specified at runtime
2052      (relevant for cluster I/O to local disk)
2053    `
2054    >>>checkpoint51b_post
2055    adjoint of ptracers
2056    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2057    o extended state in checkpoint_lev?, etc.
2058    o alternative ctrl/cost with tr1 or ptracer
2059    o new comlev1_bibj_ptracers
2060    o new ptracers.flow
2061    o made ptracers_forcing same as external_forcing_s
2062    o added verification for adjoint with ptracers
2063      - adm. grdchk fail so far
2064      - tlm. grdchk OK
2065      - checked tapelev/comlev recomputations: OK
2066    <<<checkpoint51b_pre
2067    
2068    checkpoint51a_post
2069    o added code for biogeochemistry package
2070      - new pkgs: dic, gchem
2071      - new subroutine in ptracers
2072    o modify code for biogeo packages
2073      - in model/src and pkg/ptracers
2074    
2075    checkpoint51
2076    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2077      - autodiff, ctrl, exf, grdchk, seaice
2078      kept separate packages
2079      - cost, ecco, obcs
2080    o updating verification/internal_wave, verification/lab_sea
2081      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2082    
2083    checkpoint50i_post
2084    o Preparing next differentiable checkpoint and sync
2085      of MAIN vs. ecco-branch
2086      - 1st step: this one is differentiable
2087      - 2nd step: next(! not this) checkpoint will have updated packages
2088                  from ecco-branch)
2089    
2090    checkpoint50h_post
2091    o new package "land": provide surface BC for AIM.
2092    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2093    o AIM: use true log-P extrapolation for near surface temp (= as in
2094        F.Molteni paper) ; update aim.5l_cs output.
2095    o New variable in PARM03 for more flexible pickups
2096    o somewhat cleaned package initialisation sequence for
2097      ctrl/ cost/ ecco/ in packages_... routines
2098    
2099    checkpoint50g_post
2100    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2101      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2102      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2103        made the default because of faster convergence than ADI
2104    
2105    checkpoint50f_post
2106    o exf totally restructured
2107      - replaced all exf_set_ routines by one generic exf_set_gen.F
2108        and made sure it's still differentiable
2109      - split exf_getffields.F into new exf_bulkformulae.F
2110      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2111      - updated adjoint/makefile and relevant verif. accordingly
2112    
2113    checkpoint50f_pre
2114     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2115          + change Evap over land. (update aim.5l_cs output)
2116     o added missing .cvsignores and made uniform across expts
2117     o changed configuration of tidal_basin_2d expt
2118     o added pkg/debug functions for tracing code in fatal crashes
2119     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2120     o new fn in pkg/monitor to stop model if solution grows too big
2121     o removed lots of single quotes from comments
2122    
2123    checkpoint50e_post
2124    o make KPP work with PTRACERS
2125     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2126       nearly a copy of kpp_transport_s
2127     - there is no analogue to SurfaceTendencyS, so I have to use
2128       gPtr(of the surface layer) instead
2129    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2130    checkpoint50e_pre
2131    
2132    checkpoint50d_post
2133    o change kpp output from multiple-record state files to single-record state
2134      files analogous to write_state.F
2135    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2136      analogous to the cg2d-related output.
2137    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2138      so that writing to internal file fn (with length 512) fails.
2139    checkpoint50d_pre
2140    
2141    checkpoint50c_post
2142    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2143    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2144    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2145    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2146    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2147    
2148    checkpoint50c_pre
2149    Merging from release1_p13:
2150    o bug fix for pkg/seaice dynamic solver
2151    o Added SEAICE_initialHEFF to pkg/seaice
2152    
2153    checkpoint50b_post
2154    o store u*,v* in gU,V instead of in guNm1,gvNm1
2155    o in order to put the momForcing out of the Adams-Bashforth:
2156      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2157      to timestep.F
2158    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2159    o re-generate output for highly sensitive test-exp:
2160       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2161    
2162    checkpoint50b_pre
2163    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2164    o corrected CPP option mismatch in exf_Bulk... functions for case
2165      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2166    
2167    checkpoint50a_post
2168    o Bug fix for merging between c50 and KPP.
2169      ikey was passed from thermodynamics to kpp_calc via
2170      common block rather than being recomputed in kpp_calc,
2171      in contradiction with new key itdkey.
2172      New key ikppkey created, and tamc.h headers updated.
2173    
2174    checkpoint50
2175    - 2nd step of merge with ecco-branch:
2176      merge changes in ecco-branch back into main trunk
2177    - bug fix in find_alpha
2178    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2179    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2180    - merged some sliced AD support routines
2181    
2182    checkpoint49
2183    merged from ecco-branch:
2184    o exf:
2185      - Enable initialisation of forcing fields to constant
2186        (runtime) values.
2187      - in exf_getffields.F
2188        Reduce i-/j-loop to interior domain, discarding overlaps.
2189        That also fixes wrong TAF-key computations for key_1, key_2
2190        with bulf formulae.
2191      - exf_init.F modify #ifdef for exf_init_evap
2192      - exf_getffieldrec.F, ctrl_getrec.F
2193        The following INT-usages are not safe:
2194          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2195          fldcount = int(fldsecs/fldperiod) + 1
2196        and were modified.
2197    o autodiff: checkpoint_lev...
2198      - updated storing for bulk formulae (some arrays were missing)
2199      - added state for seaice package
2200      - synchronized with main branch
2201    o DIVA:
2202      Modif.s in
2203      - the_main_loop.F
2204      - the_model_main.F
2205      and added cost_final_restore.F cost_final_store.F
2206      o With these changes, it is possible to fully separate
2207        the first forward run to compute the cost function (mdthe_main_loop)
2208        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2209        into separate model executions.
2210        This enables better tuning of DIVA to given queue sizes.
2211      o Loss of cost function value in consecutive DIVA runs is
2212        fixed by storing to 'costfinal' file.
2213      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2214        beginning/end of adjoint integration is accounted for.
2215      The current changes apply to TAF-1.4.26.
2216      TAF has one remaining bug, requiring one manual change
2217      (see MITgcm manual).
2218    o cal: synchronized between MAIN and ecco-branch
2219    
2220    checkpoint48i_post
2221    o Changes to restore differentiability of code w.r.t. previous tag
2222      (mostly adding new routines to make list and replacing
2223      pressure by totPhiHyd).
2224    o Updated and merged grdchk package
2225      - has both ADM and TLM checks
2226      - works for single- and multi-proc.
2227      - output cleaned
2228      - worked successfully for parallel DIVA
2229    o genmake:
2230      - Adding -platform=SP4
2231      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2232    o Modif. for DIVA:
2233      ctrl_unpack should not be called in intermediate DIVA interval.
2234      (similar thing would apply for active files such as
2235      tbar, sbar, psbar, which should not be reinitialised;
2236      only relevant for ecco-branch)
2237    
2238    checkpoint48h_post
2239    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2240    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2241    o Added SEAICE_initialHEFF to pkg/seaice
2242    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2243    
2244    checkpoint48g_post
2245    --- EOS:
2246    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2247      store total Potential in totPhyHyd for diagnostics & EOS.
2248    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2249    --- Pressure/geopotential gradient:
2250    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2251    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2252      ( changes results of global_ocean_pressure )
2253    o NLFS + z-coord.: add eta*Rho' contribution.
2254    o accurate phiHyd when using interface-W at the middle between 2 centers
2255     ( changes results of ideal_2D_oce )
2256    o includes r* 2nd term in potential gradient.
2257    
2258    checkpoint48f_post
2259    Merging from release1_p12:
2260    o Modifications for using pkg/exf with pkg/seaice
2261      - improved description of the various forcing configurations
2262      - added basic radiation bulk formulae to pkg/exf
2263      - units/sign fix for evap computation in exf_getffields.F
2264      - updated verification/global_with_exf/results/output.txt
2265    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2266      (SBO) core products, including oceanic mass, center-of-mass,
2267      angular, and bottom pressure (see pkg/sbo/README.sbo).
2268    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2269      to avoid negative values in shallow regions.
2270      - updated verification/natl_box/results/output.txt
2271      - updated verification/lab_sea/results/output.txt
2272    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2273    o Added useSingleCpuIO option (see PARAMS.h).
2274    o Updated useSingleCpuIO option in mdsio_writefield.F to
2275      work with multi-field files, e.g., for single-file pickup.
2276    o pkg/seaice:
2277      - bug fix in growth.F: QNET for no shortwave case
2278      - added HeffFile for specifying initial sea-ice thickness
2279      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2280    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2281      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2282    o pkg/seaice:
2283      - adjoint-friendly modifications
2284      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2285    
2286    checkpoint48e_post
2287    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2288    o dynamics: change definition of computational domain & adapt mom_fluxform
2289      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2290    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2291        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2292        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2293        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2294        inverted_barometer solid-body.cs-32x32x1
2295      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2296    
2297    checkpoint48d_post
2298    o in preparation for r*:
2299     a) use pre-computed gradient of hydrostatic potential:
2300        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2301     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2302        => affects results of glob_oce_pressure (different truncation error)  
2303      update output.txt of ideal_2D_oce & global_ocean_pressure
2304    
2305    checkpoint48d_pre
2306    o in preparation for r*:
2307      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2308      pass the 2 comp. of the grad. as arguments to momentum S/R.
2309      but for the moment, only used if it does not change the results.
2310    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2311    
2312    checkpoint48c_post
2313    Modifications in treatment of initial flux forcing controls
2314    to avoid extra storing of flux fields.
2315    
2316    checkpoint48c_pre
2317    o Added tidal_basin_2d experiment (currently 1D!)
2318    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2319    
2320    checkpoint48b_post
2321    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2322     (modification to pressure gradient not yet implemented)
2323    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2324      (for U & V) that are used for vertical advection of momentum.
2325    
2326    checkpoint48a_post
2327    o In preparation for r*, use temp. array to compute vertical transport
2328       in flux-form momentum pkg. => change results of few test-exp.
2329      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2330                        lab_sea, natl_box & plume_on_slope
2331    
2332    checkpoint48
2333    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2334    
2335    checkpoint47j_post
2336    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2337    o moved adexch from forward_step to addummy_in_stepping
2338    o added exch in ctrl_map_...
2339    o aveFreq.=0. at end of cost_final to avoid overwrite in
2340      reverse checkpointing loop
2341    o Yet more changes in gmredi:
2342      * adgmredi_calc_tensor
2343        avoiding all recomputation of gmredi_slope_limit
2344      * adgmredi_x/y/rtransport
2345        added flag for excessive storing to avoid recomp. of
2346        u/v/rtans, dTdx/y/z
2347        -> this is not really necessary and very memory-consuming
2348      * adgmredi_slope_psi:
2349        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2350      * gmredi_slope_limit
2351        re-activated full calculation of taperfct for case 'ac02'
2352    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2353    
2354    checkpoint47i_post
2355    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2356    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2357      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2358    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2359    o gmredi: fix few bugs.
2360    
2361    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2362    This will be a good checkpoint to plug into the ecco-branch.
2363    o few modif.'s to get latest version adjointed
2364      (mainly kick out code in ini_linear_phisurf)
2365    o modif's to run adjoint with exactConserv
2366    o case GM_BOLUS_ADVEC should be cleaned
2367      S/R gmredi_slope_psi should be cleaned
2368    o verification/carbon now has exactConserv=.TRUE.
2369    
2370    checkpoint47g_post
2371    o time-average AIM output: becomes independent from statvars time-average
2372      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2373    o After TAF bug fix:
2374      Tested adjoint of gmredi package.
2375      Tests were done with checkpoint47 rather than with latest
2376      checkpoint47f_post since the latter is broken for the adjoint
2377      verification/carbon/ contains both ADM and TLM gradient checks.
2378    Here they are, before they get changed/lost/stolen.
2379    Mostly modif.'s to fix numerical sensitivities.
2380    Gradient checks OK for
2381    - GM_taper_scheme:
2382      * clipping
2383      * ac02
2384      * linear
2385      * glw91
2386      * dm95
2387      * ldd97
2388    - GMREDI_OPTIONS:
2389      * GM_VISBECK_VARIABLE_K
2390      * GM_NON_UNITY_DIAGONAL
2391      * GM_EXTRA_DIAGONAL
2392      * GM_BOLUS_ADVEC
2393    in conjunction with data.gmredi parameters to be checked in
2394    in a few minutes under verification/carbon/code/
2395    
2396    checkpoint47f_post
2397    Merging from release1_p10:
2398    o modifications for using pkg/exf with pkg/seaice
2399      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2400        and SEAICE_EXTERNAL_FLUXES
2401      - pkg/exf CPP options EXF_READ_EVAP and
2402        EXF_NO_BULK_COMPUTATIONS
2403      - usage examples are Experiments 8 and 9 in
2404        verification/lab_sea/README
2405      - verification/lab_sea default experiment now uses
2406        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2407    
2408    checkpoint47e_post
2409    o created a tag prior to creating a branch
2410    
2411    checkpoint47d_post
2412    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2413      at the bottom boundary had an erroneous half slip boundary condition
2414    o added bottom drag and no slip boundary condition capabilities to
2415      oceanic pressure coordinates code
2416    o added new verification experiment global_ocean_pressure, this experiment is
2417      also described in the tutorial section of the manual
2418    checkpoint47d_pre
2419    
2420    checkpoint47c_post
2421    o Added a verification experiment for a global cubed-sphere ocean run
2422      -  verification/global_ocean.cubed32x32x30
2423      -  uses pkg/therm_seaice and pkg/bulk_forcing
2424    
2425    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2426    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2427      when using P-coordinate; only implemented for atmospheric config.
2428    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2429      NOTES: requires option NONLIN_FRSURF to be "#define".
2430    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2431    
2432    checkpoint47b_post
2433    Merging from release1_p9:
2434    o pkg/seaice
2435      - removed GOTO's and added taf directives
2436      - double precision constants to reduce the g77 (Linux)
2437        to F77 (SGI) differences reported in release1_p8
2438    o tools/genmake
2439      - added SGI options
2440    o verification/testscript
2441      - updated to that of checkpoint47a_post
2442    o verification/global_ocean.90x40x15/input/eedata
2443      - modified for SGI f77 compatibility
2444    o verification/lab_sea
2445      - added description of sea-ice model
2446      - added missing matlab routines
2447      - added test of thermodynamics parallelization
2448    
2449    checkpoint47a_post
2450    o new pkg: aim_v23
2451     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2452       for now, keep the same surface forcing as before.
2453     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2454     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2455     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2456    o add diagnostic of surface correction term in monitor output
2457    
2458    o bulk_force and therm_seaice
2459    - Two packages:  bulk_force (Bulk forcing)
2460      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2461    - Earlier integration from Stephaine Dutkiewicz
2462      and Patrick Heimbach.
2463    - Two ifdef statements for compile time,
2464       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2465    
2466    checkpoint47
2467    differentiable version of checkpoint46n_post
2468    o bug fix in quasihydrostaticterms
2469    o * "clean" adjoint code (in terms of extensive recomputations)
2470        can now be obtained for all GMREDI options (i.e. for
2471        - GM_VISBECK_VARIABLE_K
2472        - GM_NON_UNITY_DIAGONAL
2473        - GM_EXTRA_DIAGONAL
2474        - GM_BOLUS_ADVEC )
2475      * However, wrong gradient check problem remains unsolved.
2476      * New CPP options have been introduced for different
2477        tapering schemes
2478    o external_fields_load now part of differentiation list
2479    o pressure needs multiple storing;
2480      would be nice to have store_pressure at beginning or
2481      end of forward_step, e.g. by having phiHyd global (5-dim.)
2482      (NB: pressure is needed for certain cases in find_rho,
2483      which is also invoked through convective_adjustment).
2484    o recomputations in find_rho for cases
2485     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2486    o #define ATMOSPHERIC_LOADING should be differentiable
2487    o ini_forcing shifted to begining of initialise_varia
2488    o Incorporating QNVS line search routines into MITgcm
2489      (this is separate code, and therefore not under pkg)
2490      lsopt/, optim/
2491    o Updated verification/carbon/
2492      - #define GM_VISBECK_VARIABLE_K
2493      - GM_taper_scheme    = 'ldd97'    
2494    
2495    checkpoint46n_post
2496    Merging from release1_p8:
2497    o verification/natl_box:
2498      updating new external_fields_load routine
2499    o New package: pkg/seaice
2500      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2501      The sea-ice code is based on Hibler (1979-1980).
2502      Two sea-ice dynamic solvers, ADI and LSR, are included.
2503      In addition to computing prognostic sea-ice variables and diagnosing
2504      the forcing/external data fields that drive the ocean model,
2505      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2506      The implied surface heat flux is then stored in variable
2507      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2508      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2509      non-local transport term.  Because this call precedes model
2510      thermodynamics, temperature under sea-ice may not be "exactly" at
2511      the freezing point by the time theta is dumped or time-averaged.
2512      N.B.: fairly large differences in accuracy occur across
2513            different platforms/compilers; comparison between
2514            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2515            generated output gives:
2516       T           S           U           V
2517      C D M    c        m  s        m  s        m  s        m  s
2518      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2519      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2520      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2521    
2522      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2523    o GAD:
2524      - generated new common blocks to account for call of
2525        same gad routines with differing traceridentities
2526        (needed to modify tracerIdentity indices in GAD.h)
2527      - generated separate common blocks for case useCubedSphereExchange
2528        (Department of Futurology)
2529      - parameter lists to gmredi_?transport: added tracerIdentity
2530      - added new key indices to tamc.h
2531    o external_fields_load:
2532      - added this routine to TAF list
2533      - needed to make some common blocks global and additional storing
2534        along the same lines as exf package (checkpoint_lev?_directives.h)
2535    o exf:
2536      updated external forcing package
2537      - bug fixes carried over from ecco-branch
2538        (missing OBCS_OPTIONS.h in two routines)
2539      - enable easy to use "no forcing".
2540      - added exf I/O for atmospheric loading
2541      - added exf I/O for runoff data
2542      - transfered scaling between exf <-> MITgcm to exf namelist
2543    o Adding new verification experiment global_with_exf.
2544      This verification experiment is almost identical to the
2545      global_ocean.90x40x15 experiment, except that it uses
2546      the exf (and cal) package instead of the
2547      external_fields_load routine (cf README file).
2548    
2549    checkpoint46m_post
2550    o modified testscript to return -- when there are no lines of "%MON" output
2551    o added new flag "quasiHydrostatic" for QH mode
2552      and new routine quasihydrostaticterms()
2553    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2554      New routine: mom_u_coriolis_nh()
2555    o fixed sign of non-hydrostatic metric terms in u and v equations.
2556      Depend on correct sign of gravitySign.
2557    o added work.pc* to .cvsignore in aim directories using ifc
2558    o introduced flag for controllin non-hydrostatic metric terms
2559    o removed gravitySign from PARM04
2560    o switched to g77/ifc from pgf77 in aim experiments
2561    
2562    checkpoint46l_post
2563    o made convective adjustment work with pressure coordinates:
2564     - changed the direction of k-loop in convective_adjustment.F for the
2565       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2566     - adjusted the reference pressure k-index in convective_adjustment.F
2567     - adjusted the convection condition in convect.F (in analogy to
2568       calc_ivdc.F)
2569     - convective_adjustment no longer computes anything on the halos
2570     - removed the warnings about negative salinity from find_rho.F and
2571       find_alpha.F; instead the new routine look_for_neg_salinity, called
2572       at the beginning of find_rho, find_alpha, and find_beta, does a
2573       check of the entire slice, if CPP-option
2574       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2575    checkpoint46l_pre
2576    
2577    checkpoint46k_post
2578    o fixed the verification/global_ocean.90x40x15 experiment:
2579     - new bathymetry (the world according to A., JMC, and M.)
2580     - new initial fields and forcing fields (*.bin files)
2581     - new POLY3.COEFFS (for the next release one should switch to a full
2582       equation of state: JMD95P or MDJWF)
2583     - fixed several errors and redundancies in the data file
2584     - experiment uses looped cells
2585     - added matlab directory with diagnostic scripts for plotting of output
2586    
2587    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2588     - read AIM physics parameters from a file (data.aimphys)
2589     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2590    
2591    checkpoint46j_post
2592    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2593    o move wVel computation at the end of the time step, in S/R integr_continuity
2594    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2595    o update timeave pkg for wVel diagnostic.
2596    checkpoint46j_pre
2597    
2598    checkpoint46i_post
2599    o Clean up AIM package (and keep the results unchanged):
2600      include CPP_OPTION and use IMPLICT NONE in all routines ;
2601      declare all the variables _RL ; use _d 0 for all numerical constants.
2602      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2603    
2604    checkpoint46h_post
2605    o cleaned up the use of rhoNil and rhoConst.
2606      - rhoNil should only appear in the LINEAR equation of state, everywhere
2607        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2608        and the dynamical equations are all divided by rhoConst
2609    o introduced new parameter rhoConstFresh, a reference density of fresh
2610      water, to remove the fresh water flux's dependence on rhoNil. The default
2611      value is 999.8 kg/m^3
2612    o cleanup up external_forcing.F and external_forcing_surf.F
2613      - can now be used by both OCEANIC and OCEANICP
2614    checkpoint46h_pre
2615    
2616     Added code to convert surface volume flux (fresh water) into
2617     a mass flux when using P coordinates in the ocean (OCEANICP).
2618     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2619    
2620    checkpoint46g_post
2621    o Include a new diagnostic variable phiHydLow for the ocean model
2622      - in z-coordinates, it is the bottom pressure anomaly
2623      - in p-coordinates, it is the sea surface elevation
2624      - in both cases, these variable have global drift, reflecting the mass
2625        drift in z-coordinates and the volume drift in p-coordinates
2626      - included time averaging for phiHydLow, be aware of the drift!
2627    o depth-dependent computation of Bo_surf for pressure coordinates
2628      in the ocean (buoyancyRelation='OCEANICP')
2629      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2630        Theta, Salinity, and Pressure in the parameter list. This routine is
2631        presently contained in find_rho.F. This routine does not give the
2632        correct density for 'POLY3', which would be a z-dependent reference
2633        density.
2634    o cleaned up find_rho
2635      - removed obsolete 'eqn' from the parameter list.
2636    o added two new verification experiments: gop and goz
2637      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2638    checkpoint46g_pre
2639    
2640    checkpoint46f_post
2641    o Enable tangent linear (forward mode) gradient checks:
2642      - extended active file handling to g_... files
2643      - added TANGENT_SIMULATION to theSimulationMode
2644      - extended grdchk package accordingly
2645    o added tangent linear setup in verification/carbon/code_ftl
2646    o added adjoint setup in verification/front_relax/code_ad
2647    
2648    checkpoint46e_post
2649    o Added new equation of state -> MDJWF
2650      - EOS of McDougall et al., 2002, JAOT, submitted
2651      - caveat: the equation of state is only valid for a smaller (more
2652        realistic?) range of values than JMD95P/Z and UNESCO
2653      - added masks to the calculation of pressure in store_pressure
2654      - added more check values for density in check_eos (ini_eos.F), some of
2655        the old check values are out of the range of the MDJWF-eos, so don't
2656        expect perfect matches for those
2657    checkpoint46e_pre
2658    
2659    checkpoint46d_post
2660    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2661      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2662      case of pressure coordinates. eosType='JMD95Z' in
2663      combination with buoyancyRelation='OCEANICP' now causes an error.
2664    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2665      in find_alpha/beta.
2666    checkpoint46d_pre
2667    
2668    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2669      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2670    
2671    checkpoint46c_post
2672    o Changes necessary for ocean in p-coordinates
2673     -  Added new buoyancy relation = 'OCEANICP'
2674     -  Added new parameters = gravitySign (this used to be contained inside
2675        the factor dRdZ which I added when we first switched to R coordinates).
2676     X GM/Redi is not compatible (yet)
2677     X bottom drag and no-slip need to be debugged.
2678    checkpoint46c_pre
2679    
2680    checkpoint46b_post
2681    o Added new equation of state -> JMD95Z and JMD95P
2682      - EOS of Jackett and McDougall, 1995, JAOT
2683      - moved all EOS parameters into EOS.h
2684      - new routines ini_eos.F, store_pressure.F
2685    o Added UNESCO EOS, but not recommended because it requires
2686      in-situ temperature (see JMD95)
2687    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2688      unesco.f to be used with POLY3
2689    checkpoint46b_pre
2690    
2691    checkpoint46a_post
2692    o Added (atmospheric) pressure loading
2693      - new field in FFIELDS.h, etc...
2694      - new cpp flag ATMOSPHERIC_LOADING
2695    o Changed hFacC to _hFacC in calc_phi_hyd.F
2696    o Added SHORTWAVE_HEATING to some files for consistency
2697    checkpoint46a_pre
2698    
2699    checkpoint46
2700    further merges from release1_p5
2701    o new ctrl package
2702      - adopted from ECCO environment to enable optimization
2703      - added Eliassen Palm fluxes to controls
2704    o added Eliassen Palm flux controls to gradient check package
2705    o cost package
2706      - Compatible with new ctrl package
2707      - added Eliassen Palm cost hooks
2708      - modif's of existing cost functions
2709    o Adjoint-related bug fixes in kpp:
2710      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2711      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2712    o autodiff package
2713      - flow directives:
2714        + new for S/R do_the_model_io
2715        + enhanced for S/R checkpoint
2716        + new gmredi.flow
2717      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2718        disable adcommon.h/g_common.h by default.
2719      - fixed problem for adjoint of global_max
2720    o modified verification/carbon/
2721    o New setup for adjoint of global_ocean
2722    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2723    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2724    o incorporated hooks for sponge layer code (external_forcing.F)
2725    
2726    checkpoint45d_post
2727    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2728    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2729      (affects plume_on_slope "cg2d" output)
2730    o add new parameter deltaTfreesurf for free-surface time stepping
2731    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2732    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2733    o change phiMin in exp1 (to agree with documentation)
2734    o add new flags:
2735     - T,S forcing inside/outside Adams-Bashforth
2736     - turn off temp,salt advection and/or forcing
2737     - for each tracer, define internal flag for multiDimAdvection & A-B
2738    o monitor: change definition of KE to check conservation of Energy
2739    
2740    checkpoint45c_post
2741    o Removed f90 comments ("!")
2742    o Modified initialisations to enable exf package for MITgcm
2743      (without invoking ECCO_PACKAGE).
2744    o modifications to gradient check package (Martin Losch)
2745      - enable centered differences
2746      - modified format of standard output
2747    
2748    checkpoint45b_post
2749    o cleaned exchange calls in cg2d
2750    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2751    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2752      to configure barotropic setup (Martin Losch)
2753    o moved some initialisations within bi,bj loop in dynamics
2754      (TAF flow dependency)
2755    o in initialise_varia, moved call packages_init_variables
2756      before convective_adjustment_init
2757      (corresponding adjustment of TAF tape initialisation).
2758    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2759    
2760    checkpoint45a_post
2761    o compute Rho over the whole domain (extend iMin,jMin indices)
2762    o specific exchange for X-slice domain (case Ny=1)
2763    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2764    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2765    
2766    checkpoint44h_post = checkpoint45
2767    o Fix to restore differentiability:
2768      place at which packages_init_variables is called in
2769      initialise_varia is crucial for reverse control flow.
2770    o modifications in GMRedi to enable stable adjoint
2771      (corresponding modif's in thermodynamics, dynamics)
2772    o added missing hook for sponge layer code in external_forcing
2773    o modified test cost functions
2774    o storing in gad_advection (plus removal of write(0,*)!
2775    o missing headers TR1.h added in convective_adjustment routines
2776    o errorMessageUnit set non-equal zero in eeboot
2777      (conflict on some platforms, e.g. IBM SP3)
2778    o modified carbon verif.
2779    
2780    checkpoint44h_pre
2781    o vertical grid option: allow to put the Interface at the middle between
2782      2 cell-centers ; replace delZ in pkg/kpp by drF.
2783    o GM Advective form: Tracers are advected using the residual transport (=
2784      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2785    
2786    checkpoint44g_post
2787    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2788      results) ; ifdef missing in thermodynamics.F
2789    
2790    checkpoint44f_pre,checkpoint44f_post
2791    o added PTRACERS package
2792      This allows an arbitrary number of passive tracers to be integrated
2793      forward simultaneously with the dynamicaly model.
2794      + Implemented so far:
2795        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2796        - I/O and checkpointing
2797        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2798      + Not implemented so far:
2799        - KPP
2800        - OBCS
2801      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2802        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2803        line in data.pkg.
2804      + This package is disabled by default since it increases storage.
2805    
2806    
2807    o testscript: added -cleanup option
2808    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2809                 b) enable to filter 2D fields.
2810    
2811    checkpoint44e_pre,post
2812    o re-wrote convective adjustment to use pre-calculated weights
2813      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2814      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2815      Original calls to convect() still in place.
2816    
2817    chkpt44d_pre,post
2818    o added missing EXCLUDE_MONITOR flags
2819    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2820      (incompatible typ in MIN/MAX expressions caused problems
2821      on IBM SP3)
2822    o in genmake added variable MAKEDEPEND
2823      plus resetting for case SunOS
2824    o added timer_stats.c routine for IBM SP3
2825    o removed variables in dynamics
2826    !!! I forgot to create tag chkpt44d_pre !!!
2827    !!! But chkpt44d_pre = chkpt44c_post    !!!
2828    
2829    o real fresh water flux implemented with non-linear free-surface.
2830    
2831    chkpt44c_pre,post
2832    o few fix (mask in shap_s2, EmPmR in external_field_load,
2833      USE_NATURAL_BCS in solve_for_P);
2834    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2835    
2836    checkpoint44b_pre/_post
2837    o merge of relevant stuff from the ecco-branch:
2838      - genmake: removed $S64 overwrite for case SunOS
2839      - pkg/exf: update and corrections for field swapping and obcs
2840      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2841                  harmonized between ECCO and MITgcm
2842      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2843                      updated checkpointing_lev... lists for obcs
2844      - model/src: minor changes in forward_step, plot_field
2845                   added directive for divided adjoint in the_main_loop
2846      - pkg/mdsio: added mdsio_gl_slice
2847    
2848    o check parameters & config (chkpt44a_pre,post)
2849    o OBC and NonLin_FrSurf.
2850    
2851    checkpoint44
2852    o fix bug in mom_vi_del2uv
2853    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2854    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2855    o update AIM experiments (NCEP input files)
2856    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2857    o added some stuff for AD
2858    
2859    checkpoint43
2860    o added two new advection tests
2861    o added global 4x4 degree ocean test
2862    o added test of H&S94 with free surface on cube
2863    o some final mods for gradient check, adjoint,...
2864    
2865    checkpoint42
2866      Fixed AD-related problems:
2867    o Store directives up-to-date with re-arranged Adams-Bashforth
2868      (mainly thermodynamics.F)
2869    o New store directives for multi-dim. advection schemes
2870      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2871      * new common block and key passkey
2872      (mainly gad_advection.F)
2873    o Modified store directives for split of dynamics/thermodynamics
2874      for the case ALLOW_KPP
2875    o Cleaned argument list for timestep_tracer.F
2876    
2877    checkpoint41
2878    o re-formatted/added comments in prologues of key subroutines
2879      to work with protex
2880    
2881    checkpoint40
2882    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2883    o added FLT (floats) package from Arne along with demo. experiment
2884    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2885      implementation of forward-in-time forcing terms
2886    o more mods for non-linear free-surface including new variable
2887    o modified multi-dim method to work on cube
2888    o bug fix in KPP (from DM)
2889    
2890    checkpoint40pre9
2891    o added DST advection schemes
2892    o fix MPI bug on SGI's
2893    o modifications for non-linear free-surface
2894    o fixed conditionals for fixed flow/passive tracer only mode
2895    o added tension/strain form of stress tensor
2896    o changes to commenting of arguments for TAF/TAMC
2897    o added/updated many matlab scripts
2898    o added multi-dimensional advection method for tracers
2899      
2900    checkpoint40pre8
2901    o new package rw/
2902      Added method for dumping intermediate local arrays:
2903      mdsio_writetile - same as mdsio_writefield except works from inside
2904                        bi,bj loop
2905      mdsio_writelocal - same as mdsio_writetile except works for local
2906                         arrays
2907      write_local_r? - higher-level wrapper for mdsio_writelocal
2908      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2909      Example given at end of mom_vecinv.F that dumps some local arrays.
2910    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2911      control flux-form versus vector invariant code.
2912      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2913      or genmake -DISABLE ...
2914    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2915      (additional storing is now needed for case vecinv;
2916      currently nothing implemented to switch this storing off
2917      in case fluxform is used since no CPP flag available).
2918    
2919    checkpoint40pre7
2920    o bug fix in dynamics.F
2921      calc_viscosity called before k=1,Nr loop.
2922    o added some #ifdef's ALLOW_PASSIVE_TRACER
2923    o cleaned initialisations in ctrl_map_ini
2924      related to TAF
2925    
2926    checkpoint40pre6
2927    o split dynamics into thermodynamics & dynamics
2928    o corresponding split of calc_diffusivity into
2929      calc_diffusivity, calc_viscosity
2930      (kpp_calc_diff, kpp_calc_visc).
2931    o Added diffkr, kapgm to control variables
2932    o bug fix in gmredi_slope_limit for ldd97
2933    
2934    checkpoint40pre5
2935    o proper initialization of Adams-Bashforth time stepping
2936      + uses forward step for very first step of model (iter=0)
2937    o re-generated *all* output since almost all output is modified by this
2938      change (sorry but we've been putting this one off for about 2 years)
2939      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2940        *not* regenerated since they are already out of date and I don't
2941        want to create the impression that they are suddenly working.
2942    o removed KAP stuff for DEC's
2943    o modified/added many .cvsignore files in */code and */input
2944    o added new expt "solid-body.cs-32x32x1"
2945      + this uses an alternative form of ini_curvilinear_grid.F which
2946        is not necessarily any better than the current one...
2947    
2948    checkpoint40pre4
2949    o added re-initialisations of utrans,vtrans,rtrans in
2950      calc_common_factors which are crucial for TAF.
2951    o extended iMin,jMin range for calc_common_factors,
2952      calc_diffusivity
2953    o added option ALLOW_PASSIVE_TRACER
2954    o a few minor updates and fixes
2955    
2956    checkpoint40pre3
2957    o created calc_gtr1.F for gad package
2958    o split the_main_loop and re-introduced forward_step
2959    o some recomputations of nIter0 for TAMC
2960    
2961    checkpoint40pre2
2962    o Updated to latest branch of AJA, JMC
2963    o Added gradient check package
2964    o Added routines for passive tracer handling
2965    o Added carbon sequestration sensitivity experiment
2966    
2967    checkpoint39
2968     o Modifications and fixes to support TAMC
2969       (mainly missing or wrong directives)
2970     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2971       in addummy_in_stepping
2972     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2973     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2974     o Included following packages:
2975       cal: calendar
2976       exf: external forcing
2977       ecco: essential routines to control use of cal, exf
2978             (NB: this is not the full ECCO environment)
2979     o disabled some packages by default in genmake
2980    
2981    checkpoint38
2982     o see notes_c37_adj.txt
2983     o corrected wrong layer index in external_forcing_t
2984     o replaced the_main_loop/forward_step by the_main_loop
2985     o removed forceoutput from write_state
2986       (replaced criteria for initial/final state)
2987     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2988    
2989    checkpoint37
2990     o mdsio.F routine split and packaged in pkg/mdsio
2991       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2992        used unless genmake -disable=mdsio)
2993     o allow a more precise surface-geopotential gradient for the atmosphere
2994       taking into account the change in space of Alpha (=1/rho) at the surface.
2995     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2996       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2997     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2998       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2999       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3000     o Time-Average diagnostics defined as a pseudo package "timeave".
3001     o pickup files : old pickup (before c35) did not work with new code (c35
3002       and after) unless activating 2 commented lines in initialise-varia.
3003     o Non-Hydrostatic pickup file Pb fixed.
3004     o bug with Rigid-lid version (since c35) fixed.  
3005    
3006    checkpoint36
3007     o implement Crank-Nickelson barotropic time-stepping
3008     o recover Time-Average diagnostics
3009     o fix Pb in checkpoint (PR#19)
3010     o AIM become a standard package ; clean unused CPP_kees
3011    
3012    checkpoint35
3013     o subtantial rewrite of dynamics.f
3014     o allows staggered time-stepping
3015     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3016     o added bottom drag (linear + quadratic)
3017    
3018    checkpoint34
3019     o Modified exchange routines for correct reverse simulation.
3020     o Added verification output to comply with bug fix in impldiff.F
3021       as of c33 (exp2, natl_box).
3022     o Corrected store directives in dynamics.F
3023     o Corrected array boundaries in impldiff.F
3024     o Corrected array dimensions in gmredi.
3025       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3026     o Added routine GLOBAL_SUM_INT to global_sum.F
3027     o Added mdsio_gl.F for ECCO purposes.
3028    
3029  checkpoint33  checkpoint33
3030   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
3031   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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