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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.768 by dimitri, Tue Feb 6 22:24:51 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 utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
8      and portions thereof.  See read_cs.txt for description and examples.
9    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
10      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
11      following the great-circle arc between those 2 points.
12    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
13      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
14    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
15     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
16     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
17     - still needs work (not working with some options ; efficiency to improve)
18       and serious testing.
19     - use this scheme for temperature & salinity in 2 advection test exp.:
20       advect_xy & advect_xz, respectively.
21    
22    checkpoint58u_post
23    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
24    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
25    o testreport: add option "-skipdir" to skip some test.
26    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
27      momentum calculation.
28    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
29    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
30      remove checkpoint.F and the_correction_step.F (no longer used);
31      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
32    o add option (linFSConserveTr) to correct for tracer source/sink due to
33      Linear Free surface
34    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
35    o pkg/thsice: fix reading mnc-pickups
36    
37    checkpoint58t_post
38    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
39    o pkg/mdsio:
40     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
41       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
42       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
43     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
44     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
45       either MDS_READ_FIELD or MDS_WRITE_FIELD )
46     - new S/R (to replace MDSWRITEMETA), which allows to write more
47       informations (variable names, time ...) to meta files.
48     - modify rdmds.m to give back the meta file content.
49    o pkg/diagnostics: change vertical interpolation to be safer, and more
50       flexible (define p-levels to interpolate to in data.diagnostics);
51      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
52       diagnostic pointer.
53    o pkg/seaice: more cleaning up of seaice_growth, added many comments
54    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
55    o fix multi-category seaice:
56     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
57       SEAICE_MULTICATEGORY
58     - fix short wave heat flux
59    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
60       and allow to use EVP solver. Change forward lab_sea: test both EVP
61       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
62    o Initial check-in of lab_sea adjoint
63      (very similar to natl_box_adjoint/code_seaice)
64      * used C-grid and EVP solver
65      * used KPP, GM/Redi
66      * uses inAdExact=.TRUE.
67      * gradient checks fail for both ADM and TLM
68        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
69        f.d. gradients actually seem more problematic than ADM, TLM gradients;
70        issue is related to forward mismatch between g77 an ifort
71    o pkg/seaice: overhaul of thermodynamics
72     - growth.F and groatb.F are replaced by new routine seaice_growth.F
73     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
74     - move a few global fields out of SEAICE.h into seaice_growth.F and
75       make them 2D (FICE/QNETO/ ...)
76     - remove FO (it is the same as QNETO)
77     - introduce a few local fields to avoid modifying external fields such
78       as atemp, etc.
79    
80    checkpoint58s_post
81    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
82      changed exf_set_gen.F so that
83        genperiod=0 means input file is one time-constant field and
84        genperiod=-12 means input file contains 12 monthly means
85    o CG2D: use pre-computed solver main-diagonal (stored in common block);
86      this affects truncation error ; generate new output file for exp. which
87      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
88        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
89        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
90        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
91        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
92        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
93    o start implementation of deep-atmosphere and anelastic formulation
94    o verification: remove 2nd copy of input files and use script "prepare_run"
95      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
96    o mom_common/vecinv/fluxform: fix a few initialisation isssues
97    o profiles: fix for multithreaded case
98    
99    o diagnostics: rename few diags:
100      s/'PRESSURE'/'RCENTER '/g
101      s/'TICE    '/'oceFreez'/g
102      s/'TAUX    '/'oceTAUX '/g
103      s/'TAUY    '/'oceTAUY '/g
104      s/'SWFLUX  '/'oceQsw  '/g
105      s/DIFx/DFxE/g
106      s/DIFy/DFyE/g
107      and add few ocean-forcing diagnostics:
108      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
109    o modifications to pkg/seaice/growth.F and budget.F, which change results of
110      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
111      as actual snow thickness.  It now refers everywhere to effective snow
112      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
113    
114    checkpoint58r_post
115    o modifications to pkg/seaice/growth.F, which change results of
116      lab_sea experiment: fixes pertain to melting snow over open water, to
117      masking EVAP under sea ice, and to using the correct AREA variable for
118      computations of EVAP, PRECIP, HSNOW, and GHEFF
119    o add ability to read bathy, salt, and theta using MNC (off by def)
120    o add flooding algorithm and advection of HSNOW for pkg/seaice;
121      both are turned off by default and do no change any results
122    o seaice advection with pkg/thsice: a step toward the use of non-linear
123      advection scheme, but #ifdef or commented out for now (requires more EXCH).
124    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
125      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
126      in natl_box (affects results @ truncation level: update output.txt)
127    o multi-threading and IO:
128      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
129      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
130        (needed to work with SingleCpuIO): tested in all verif. exp.
131    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
132      affects the results (but none of the verification test uses this scheme).
133    o Adding some pkg/diagnostics capability to pkg/seaice
134      (will certainly be subject to changes)
135    o ctrl: adding new control variables:
136      lwflux, lwdown, evap, snowprecip, apressure, runoff
137    
138    checkpoint58q_post
139    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
140      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
141      high_res_cube configuration by 4% on Columbia.
142    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
143      add (in global_with_exf/code) a version of EXF_INTERP_READ without
144      dynamical allocation (seems to work in multi-threaded).
145    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
146      single CPU io) so that TAF does not have to see EESUPPORT.h
147    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
148    
149    checkpoint58p_post
150    o obcs: stop if obcs is used with useCDscheme = .true.
151    o shelfice:
152     - fix a sign error so that no slip at shelfice interface works
153     - remove stop for combination non-hydrostatic code and shelfice. That does
154       not mean, that the results are correct, but at least they are numerically
155       stable
156    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
157    o added adjoint exch routined for all exch*3d* routines
158      and updated flow directives
159    
160    checkpoint58o_post
161    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
162      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
163    o change controling S/R for writing pickup file (new S/R do_write_pickup)
164      and clean-up reading/writing of pickup files.
165    o fix local version of read/write pickup (NH part) in rotating_tank/code
166    o simplify EXCH interface:
167     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
168     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
169    o added the regrid package
170    o shelfice:
171     - add a simple boundary layer scheme to reduce noise
172     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
173    
174    checkpoint58n_post
175    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
176       local variable (not in common block).
177    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
178      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
179      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
180        to work with SingleCpuIO.
181    o add "_d 0" to real constant of pkg/cfc subroutines ;
182       update exp. cfc_exemple & tutorial_cfc_offline output files.
183    o multi-threading and IO:
184      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
185        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
186      - barrier before and after reading.
187      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
188      - avoid using MDS_WRITELOCAL for LAND pkg output.
189      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
190        common-block variables ; Allows multi-threading with master-thread IO.
191    o change default MAX_NO_THREADS from 32 to 4 ;
192      and stop cleanly when MAX_NO_THREADS is too small.
193    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
194    
195    checkpoint58m_post
196    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
197       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
198    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
199       keep global_ocean.90x40x15 (for AD testing) with former secondary test
200       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
201    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
202        add MITgcm_tutorials (= code + all the tutorials)
203    o ecco, option to compute cost for total ssh (mean+anom)
204    o consistent with addition of ptracer and ssh in pkg/profiles
205    o profiles: adding ptracer and ssh
206    o testreport: change multi-test output-file name
207      (from output.txt.{name} to output.{name}.txt)
208    o profiles: now ok for mutli-tiles case
209    o seaice: add 4 parameters for different advection schemes for area,
210      (effective) seaice thickness, enthalphy, and snow height. Their default
211      is the standard parameter SEAICEadvScheme
212    o calc_gw:
213     - add cosFacU in zonal viscous flux (harmonic.visc.).
214     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
215       of tutorial_plume_on_slope.
216    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
217    o calc_gw: true flux-form, account for horizontal grid spacing.
218      update rotating_tank results, but not plume_on_slope (affected at
219      truncation level, 11 digits).
220    
221    checkpoint58l_post
222    o calc_gw:
223     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
224     - remove side-drag for now (need to fix it); update plume_on_slope results.
225     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
226    o commit code to make SST/SSS weights spatially variable
227      (based on either variable in-situ or variable initial T/S weights)
228    o pkg/ecco:
229      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
230        now based on horizontally varying weights wthetaLev, wsaltLev
231      * cost_averagesflags now returns year indices in addition to day, month
232      * sflux balance is performed on annual basis
233        (sflxumm, sfluxmm2, bal_sfluxmm)
234      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
235        including separate counting and multipliers
236    o pkg/rbcs
237      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
238    
239    checkpoint58k_post
240    o testreport:
241     - always build in dir. "build" (if not there, mkdir build instead of building
242       & running in input)
243     - run in dir run (if it exists), in build otherwise.
244     - call prepare_run (if input/prepare_run exists)
245     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
246    o pkg/exf modifications to interpolation and rotation routines for more
247       reasonable treatment of North Pole singularity: for tracers North Pole
248       value is set to northernmost zonal-mean value, for zonal velocity it is
249       set to zero, and for meridional velocity it is set to northernmost value.
250    o pkg/exf/exf_check_range.F
251     - add tile index to diagnostics and move stop statement to the very
252       end of the routine.
253    o pkg/diagnostics: (diagnostics_main_init.F)
254      define title of isomorphic variables according to the current config.
255    o pkg/thsice with pkg/seaice dynamics:
256    - fix domain of computation (interior only, required for exf) and do exchanges
257    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
258    o towards a standard way of dealing with multi-threading in MONITOR
259      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
260    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
261       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
262    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
263    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
264    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
265       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
266    o tracer advection:
267     - clean-up and simplify calc_common_factors.F
268     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
269       advection subroutine (but still not used within DST advection S/R)
270    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
271    
272    checkpoint58j_post
273    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
274      from file (collects calls previously in FORWARD_STEP)
275    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
276    o adjoint store dir. adjusted accordingly
277    o genmake2
278      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
279    
280    checkpoint58i_post
281    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
282      on wind stress (SEAICEstressFactor defaults to 1.)
283    o Total number of Timers is finite (<=40): comment out 2 non-essential one
284      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
285    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
286      on CS-grid: no longer loosing mass.
287    o exf & curvilinear-grid: no longer modify longitude xC & xG.
288    o pkg/ggl90: fix sloppy output and fix a bug
289    o pkg/seaice: added SEAICEuseEVPpickup parameter
290      - Set to false in order to start EVP solver with
291        non-EVP pickup files when using SEAICEuseEVP
292      - fix sign error in diffusion in seaice_calc_rhs
293    
294    checkpoint58h_post
295    * Modifications for bottom topography control
296      o replace hFacC by _hFacC at various places
297      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
298      o add non-self-adjoint cg2d_nsa
299      o update autodiff support routines
300      o re-initialise hfac after ctrl_depth_ini
301      o works for 5x5 box, doesnt work for global_ocean.90x40x15
302    * Adding verification for 5x5 box (4-layer) bottom topography control
303    
304    checkpoint58g_post
305    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
306       used for mean seasonal cycle, mean diurnal cycle); add an example
307       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
308    o pkg/ggl90:
309      - add parameter (minimum surface kinetic energy)
310      - fix bug (avoiding division by zero)
311    o couple pkg/thsice to pkg/seaice:
312      - modify advection in seaice to accomodate new scalar fields to be advected
313      - only muliDimAdection scheme work with seaice/thsice
314      - mapping of thsice-variables to seaice-variables, back and forth
315      - does not break the verification experiments, but does not give the
316        desired results either
317    o pkg/seaice
318      - make (default) second order advection a bit less confusing?
319    
320    checkpoint58f_post
321    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
322      to pkg/seaice):
323      - new routines thsice_map_exf and thsice_get_exf provide the interface
324      - add an additional formal parameter to thsice_solve4temp
325    o pkg/exf:
326      - add new fields wspeed, snowprecip (to be able to couple to thsice)
327      - correct Stefan-Boltzmann constant
328      - new parameter for longwave surface emittance
329      - separate some stuff from exf_bulkformulae into new routines  
330        exf_radiation, exf_wind
331      - add new parameters and constants: longwave emissivity for ocean, ice
332        and snow, evaporation parameters over ice
333      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
334        either wind from stress or stress from wind
335    o pkg/thSIce:
336    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
337    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
338       and THSICE_CALC_THICKN
339    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
340    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
341      to make debugging easier.
342    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
343    o pkg/bulk_force:
344      - clean-up comments and parameters ;
345      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
346    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
347      generate new output for test-experiment: aim.5l_cs.thSI
348    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
349      testreport accordingly
350    
351    checkpoint58e_post
352    o SEAICE_CGRID adjoint done
353    o R_STAR adjoint implemented.
354      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
355      * need to sort out init. of h0facc, etc.
356    o Make pkg/profile fully independent of ecco,cost, etc. stuff
357      to be able to use it in pure forward.
358    
359    checkpoint58d_post
360    o upgrade simple test-experiment to tutorial example:
361     step.1: duplicate the experiment and (step.2) will remove the old copy.
362      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
363      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
364      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
365      tutorial_global_oce_biogeo    <- copy of dic_example
366      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
367      tutorial_plume_on_slope       <- copy of plume_on_slope
368      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
369      tutorial_global_oce_optim     <- empty for now (David ?)
370      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
371     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
372    o correct a sign problem in cost_scat.F
373    o obcs and ptracers: fix boundary conditions for advections schemes
374      with larger stencil
375    o thsice adjoint: start
376    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
377      completeness
378    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
379      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
380    o ptracers adjoint:
381      * avoid extensive recomputatations
382      * fix missing re-init. of gptr (missed by TAF)
383    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
384      me to turn off the excessive output to STDOUT that this package produces
385    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
386      and add those terms in Vector-Invariant formulation.
387    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
388      if the control period (xx_hfluxperiod etc) is 0
389    o in profiles pkg, clean routines and fix details
390    o in ecco pkg, reading ssh data:
391      fix problem in case the model does not start at iter0=0
392    o fix mnc-pickup/restart for ptracers
393    o new package prifiles:
394      code to compute profile-based cost by Gael Forget
395      (modifs in ecco, ctrl, autodiff)
396    o Benign bug fix in initialization (spotted by M. Mazloff) of
397      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
398    
399    checkpoint58c_post
400    o adjoint: finish NLFS adjoint and provide reference output in
401      verification/global_ocean.90x40x15/results_ad_nlfs
402    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
403      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
404      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
405      with SEAICE_CGRID defined.
406    o move calendarDumps from "data" to "data.cal" and clean-up the code
407      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
408    o add useEXF & useCAL flags (for now, set in hard-coded way)
409    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
410      (were missing in NH mode, and wrong in quasihydrostatic mode).
411      waiting for Chris updated version of calc_gw to add those CALLs.
412    o fix bug in quasihydrostatic S/R ;
413      add a test for this option: global_ocean.90x40x15.qshyd
414    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
415      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
416    o add on/off flag useOffLine for package OFFLINE
417    o seaice:
418      - modify advection so that it works also on the C-grid
419      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
420        problem in multi-tile runs with C-grid
421      - add flags for clipping ice velocities and/or masking solver forcing
422      - fix drag (ocean on ice) formulation and a bug that caused noise in the
423        C-grid solver
424      - added a few comments to seaice_diffusion.F
425      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
426        are now exclusive)
427      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
428        required re-ordering the code a little:
429       + make DAIRN global variable (defined in SEAICE)
430       + move computation of the viscosities eta and zeta into a new separate
431         routine (because I need to recompute them in seaice_ocean_stress.F)
432    
433    checkpoint58b_post
434    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
435      update output.txt of exp. aim.5l_cs.thSI
436    o various mnc cleanups and improvements:
437      + shrink lookup tables by factor of ~4
438      + better error reporting when running out of lookup space
439      + able to handle longer path/file names (up to 500 chars)
440    o adjoint:
441      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
442      - TBD: "hidden" mom_vecinv recomp. in dynamics
443    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
444     (allow to differentiate between forcing components using new integer flags:
445      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
446     and add new flag to put Dissipation tendency out of Adams-Bashforth.
447    o ecco
448      - enable trend removal from SSH anomaly obs.
449    o adjoint
450      - a fix for PmEpR when #undef EXACT_CONSERV
451      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
452      - try to fix "hidden" recomp. in forward_step for NLFS
453        (NLFS seems broken sometimes after I checked it in)
454    o seaice:
455     - add c-grid version of the dynamic solver:
456       + three new routines that are the c-grid substitute lsr, dynsolver
457         and ostres
458       + put a few fields that were local to dynsolver into global common
459         blocks, so that I can move the computation of stresses etc into
460         seaice_lsr (saves coding but may break the adjoint).
461     - replace more hardwired parameters by runtime parameters
462     - add ice masks that mask the rhs of the implicit solvers where there
463       is no ice (commented out in seaice_dynsolver, because i am not sure
464       if this works properly), eventually this should replace the clipping
465       of ice velocities in seaice_dynsolver to +/-40cm/s.
466    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
467      include it only where its needed
468    o move balancing of fluxes before the call of external_forcing_surf
469    o seaice:
470      - correct units of turning angles (now they are really in degrees)
471      - move computation of GWATX/Y out of main routine into dynsolver
472      - initialize GWATX/Y in seaice_init
473    o Apply mask on Fresh-Water flux (needed for SSH forcing).
474      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
475    o seaice: add runtime flags for turning angles (default to zero)
476    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
477      and trend from exf forcing and ctrl control adjustments
478    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
479      (since checkpoint57x_post)
480    o change the default rotation period to 86164.s = the Earth rotation
481    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
482      and based on a reference stratification. Tested within hs94.cs-32x32x5.
483    o seaice advection: add code for choosing between the default (2nd order
484      central differences) and multiDim advection schemes provided by
485      pkg/generic_advdiff
486    o seaice:
487      - removed all references to SEAICE_GRID.h fields from
488        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
489        (cubed-sphere configuration will change a little)
490      - grid computations in seaice_init are obsolete now.
491      - cleaned up code a little so that is easier to read (hopefully).
492      - added new (better?) discretizations of default advection and diffusion
493        (turn on with SEAICEuseFluxForm)
494      - replace 1 in 3d global fields by kSurface in growth.F
495      
496    checkpoint58a_post
497    o seaice:
498      - bug fix in advect.F
499    o shelfice:
500      - separate shelfice load anomaly from pload (breaks with time
501        dependent forcing), => introduce constant field shelficeLoadAnomaly.
502        Its default is 0., but it may be computed more cleverly from (unknown)
503        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
504        done offline. A good approximation of the pressure load anomaly is
505        necessary to avoid large initial adjustment processes underneath
506        deep-reaching shelfice.
507      - small fix in ISOMIP shelfice_thermodynamics
508      - add more sophisticated thermodynamics of Hellmer (1989), this is
509        now the default
510      - give a few constants more intuitive names
511    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
512      if bulk formulae are used in long integration (especially EmPmR). Turn
513      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
514      if balancePrintMean, the imbalance that is substracted is printed to
515      STDOUT.
516    o fix bug (typo) in obcs_apply_eta.F
517    o add a new package shelfice which enables us to model the circulation
518      underneath shelf-ice with draughts of hundreds of meters.
519     - works
520     - to do: + include improved thermodynamics
521              + check whether kSurfC (from model/inc/SURFACE.h) can be used
522                instead of new field kTopC
523              + can we use topoFile, Ro_surf and existing code in ini_depth.F
524                instead of new field R_shelfIce and new code in ini_depth.F
525                and ini_mask_etc.F?
526              + adjust vertical mixing schemes?
527    o seaice pkg:
528     - add a cpp-flag to include a simple formula for a salinity dependent
529       freezing point of sea water at the surface
530     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
531       meridional stresses are now different (and hopefully correct)
532    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
533       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
534       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
535    o pkg/diagnostics: add options and parameters for regional-statistics
536       diagnostics ; define regions by reading a region-mask from a file
537       (might add other options later)
538    o pkg/bulk_force:
539     - add option and parameters to use AIM surface-flux formulae.
540     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
541       others forcing fields (defined in PARM05, parameter file "data") are loaded
542       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
543     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
544     - use the right EXCH call for uwind,vwind (to work on CS-grid).
545     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
546       and parameters (note: calcWindStress replaces .NOT.readwindstress).
547     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
548    
549    checkpoint58
550    o add "--embed-source" option to genmake2 which, when the supporting
551      tools can be compiled (as determined by genmake2) will turn on the
552      embed_files package which then embeds the entire MITgcm source code
553      (*.[fFhc] + Makefile) used for the build within the executable
554      - requested by CNH but off by default
555      - adds a paltry <9MB to the mitgcmuv executable in most cases
556      - only writes the output when useEMBEDSRC in eedata is true
557    o clean up 3-dim. relaxation codes:
558      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
559      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
560      * Thanks to Tom Haine for testing!
561    
562    checkpoint57z_post
563    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
564      affects output (@ truncation level) of exp. plume_on_slope ; updated.
565    o fix the pickup behavior for obcs in combination with ptracers
566    o fix a bug in ptracers_external_fields_load
567    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
568      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
569    o transfered surface NH pressure to eta field (if exactConserv).
570    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
571         and update lab_sea output.txt file.
572    o completing 3-dim. relaxation code: additional term
573         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
574      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
575      * At compile time, in "EXF_OPTIONS.h" set
576          #define  ALLOW_CLIMTEMP_RELAXATION
577          #define  ALLOW_CLIMSALT_RELAXATION
578      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
579          tauThetaClimRelax3Dim = 15552000.0,
580          tauSaltClimRelax3Dim  = 15552000.0,
581      * 3 cases:
582          1) Use a constant-in-time 3-dim. field
583          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
584          3) Real-time relax. to time-evolving prescribed field
585    o Adding Laplacian-type smoothness constraint on
586      initial and boundary (forcing) controls (ic, bc)
587      * enable at compile-time via
588        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
589      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
590      * Absolute scale somewhat unclear so far
591      * no area weighting was included since no other cost term does so far
592    
593    checkpoint57y_post
594    First step for a NLFS adjoint
595    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
596    o new init. routines for calc_r_star, calc_surf_dr
597    o still need to deal with ini_masks_etc
598    o testreport seemed happy
599    checkpoint57y_pre
600    
601    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
602    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
603    o add new offset feature to offline pkg (plus minor cleanup)
604    o cfc fixes for final year of integration
605    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
606      be in GCHEM_OPTIONS).
607    
608    checkpoint57x_post
609    o fix testreport Pb in multiple test experiment.
610    o cleanup our namelist syntax in verification:
611      - make it more F95 standards compliant (some work still needed)
612      - allows the vast majority of our tests to work with gfortran
613    o Non-Hydrostatic:
614     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
615     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
616    o Allow to apply AB on T,S rather than on AB(gT,gS):
617     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
618     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
619       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
620     - need a "clever" read_pickup to restart from the other AB formulation
621    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
622    o remove some unused variables (reduces number of compiler warnings)
623    o adjoint
624      * Disable useVariableViscosity for adjoint for time being
625        (there are a number of extensive recomputations)
626      * Initialize certain variables needed for adjoint
627    
628    checkpoint57w_post
629    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
630                 fix the singleCpuIO RS version of MDSWRITEFIELD
631       and add a WARNING if using globalFiles=T with multi-processors.
632    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
633      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
634    o tracer advection scheme:
635      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
636       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
637       was not very convenient).
638      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
639       (further tests needed for the implicit DST & Flux-Limiter schemes).
640    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
641      and sRef for convenience, handy, when you want to initialize
642      ptracers in a large domain with a constant non-zero value. Also,
643      untangle ptracers_init.F a little.
644    
645    checkpoint57v_post
646    o change dome exp. to use variable viscosity in side-drag terms.
647    o remove all the files from the cfc_offline test since they are now
648      incorporated into tutorial_cfc_offline which has been producing
649      identical results for a few days of testing
650    o add new parameter: sideDragFactor to enable half-slip-side BC
651      and change side-drag S/R to use viscosity from mom_calc_visc
652      (can switch back by setting sideDragFactor=0.); affects results at
653      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
654       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
655    o vorticity & strain are now computed without masking, to account for
656      no-slip-side BC in variable viscosity calculation ; mask is applied
657      anyway later on, before computing advection/coriolis terms.
658    o modify exp4 to test new obcs support for reading from external files
659      and for passive tracers
660    o fix behavior of ptracers_monitor when monitor output is written to a
661      netcdf-file; still not independent of monitor.F (writes in the same
662      file).
663    o change default value of tRef (put a uniform, meaningful value for ocean
664      & atmos) and initialize sRef (was missing, as Martin mentioned).
665    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
666      to be proportional to enstrophy dissipation length.  Thus,
667       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
668      This is now consistent with Smagorinsky and with the manual.
669    
670    checkpoint57u_post
671    o OBCS and PTRACERS: add open boundary support for passive tracers
672      - either use homogenous (pseudo) v.Neumann conditions or prescribe
673        OB-values from file; this is not different from the way theta and salinity
674        are treated
675      - however, Orlanski-radiation conditions are not supported, and the model
676        will stop if you use pTracers and Orlanski at the same time.
677      - beefed up the rountine obcs_external_fields_load: now only those open
678        boundary values are overwritten with values from files for which there
679        are really files, otherwise the OB-fields remain untouched. This makes
680        it possible to use different OBs at different ends of the domain (as
681        with EXF)
682    o reduce number of exch calls in shap_filt (s2).
683    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
684      truncation level) 4/5 MLAdjust test results (11&12 digits match).
685    
686    checkpoint57t_post
687    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
688    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
689      same truncation, independent of the face number: affects affects several
690      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
691    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
692      note that biharmonic viscosity + no-slip was not tested in any experiment.
693    o fix bug in non-linear free-surf side-drag ; generate new output for
694      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
695    o make mnc honor the writeBinaryPrec flag for most kinds of output
696    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
697    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
698      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
699    o add brackets in multi-terms sum to get same truncation, independent of
700      the face number (manage to get exactly same value of gU,gV at the cs-edge)
701      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
702    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
703      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
704      a maximum grid-scale Reynolds number.  Also, changes all length calculations
705      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
706      Suggested values of viscosity parameters found in mom_calc_visc.
707      Many new viscosity diagnostics available.
708    
709    checkpoint57s_post
710    o Add clearing-house for viscosity calculations, mom_calc_visc and
711      correct numerous bugs in LeithD and Smagorinsky discretizations.  
712      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
713      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
714      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
715      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
716      The Strain-Tension form is now called with useStrainTensonVisc=.true.
717      ViscAhStrain and viscAhTension are now retired.
718    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
719    o In response to JMC's bug report, genmake2 now ignores any soft-links
720      that it finds in the *current* directory when searching for files.
721      Soft-links found in any other source directories will still work as
722      they did before.
723    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
724      a C routine to unlimit the stack size
725    o mnc-ify pkg/aim snapshot vars
726    o mnc-ify pkg/land as requested by Daniel
727    o various changes to mnc including:
728      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
729      - output can now be grouped so that all files within a group
730          change the ITER portion of their names in lock-step together
731      - can now read ("global") PER-FACE (in addition to PER-TILE) files
732          and works with both EXCH1 and EXCH2 (but needs more testing)
733      - writing works for all verification test cases w/ g77 on Linux
734    
735    checkpoint57r_post
736    o make MNC variable initialization happen earlier
737    o add diagnostics for (almost) each term of the momentum Eq.
738    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
739    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
740    o remove MINIMAL_TAVE_OUTPUT option ;
741      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
742    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
743      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
744    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
745    o add time-dependent SST, SSS control
746    o cost terms in ecco/ modularized (new cost_generic.F)
747    o cost_averages routines are modularized (new cost_averagesgeneric.F)
748    o new infrastructure for seaice model vs. obs misfits in seaice/
749      * driver from the_main_loop.F is seaice_cost_driver.F
750      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
751      * gradient check in Exp. 6a of natl_box_adjoint/
752    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
753      (see README file)
754    
755    checkpoint57q_post
756    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
757    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
758      - bug was reported by Jean-Michel and Ian Fenty
759    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
760      update exp. cpl_aim+ocn output.
761    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
762      Needed for high-res. runs with large global files
763      to be able to limit tapelev size
764    o Changed some tests for adjoint:
765      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
766      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
767      * global_ocean.90x40x15/ back to default 3-level checkpointing
768    o Modifications to enable scripted COMMON to MODULE conversion
769      * verification/OpenAD/code/ has necessary scripts and description;
770      * converts, compiles and runs successfully;
771    
772    checkpoint57p_post
773    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
774    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
775      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
776    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
777    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
778      (was already the case for dissipation with mom_vecinv,
779       and also the case for grad.PhiHyd when staggered-timeStep)
780      This will allow to put dissipation out-off the AB time-stepping.
781     Unfortunately, affects truncation error. Update output of exp. that "fails"
782      (cg2d matching number) and leave the others for later: front_relax(10),
783      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
784      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
785    
786    checkpoint57o_post
787    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
788      (2) its ready to be documented during the 20050801 DocFest
789    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
790      for ideal_2D_oce and lab_sea on linux_ia32_g77
791    o set to #undef CTRL_SET_OLD_MAXCVARS_30
792      in global1x1_tot/code_seaice_adj to access indices 32, 33
793      (worth another tag)
794    
795    checkpoint57n_post
796    o adding precip control xx_precip 32
797    o adding swflux control xx_swflux 33
798    o Replacing 10 forcing penalty cost routines by 1 generic.
799    o Implementing partitioning in time-mean and variable adjustment
800      for atmos. state.
801    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
802    o in natl_box_adjoint:
803      * updated exp 1 to 10
804        (but does not have time-mean vs. variable split results yet)
805    o updated global1x1/*_seaice_adj/
806      to incorporate latest changes
807    o enable useSingleCpuIO for mdsio vector routines
808      (applies in particular to tapelev I/O)
809    o removed inefficient K-loop in all active_file*control*.F
810    
811    checkpoint57m_post
812    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
813      and advect_cs (use EXCH-2 and standard cs-32 grid files).
814    o pkg/exch2: filling of face-corner halo regions is optional
815      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
816    
817    checkpoint57l_post
818     tag before updating tutorials (pre-release-2)
819    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
820       for output and interpolation of input fields onto model grid)
821    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
822       Affects results of exp. rotating_tank ; update output.txt.
823    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
824          and taking the square quantity and/or using a fraction-weight field.
825    o fix aim_diagnostics_init.F mate numbers.
826    o add mnc output capability to diagnostics/diagstat and update
827      our cvsignore files for the ACSII output generated
828    
829    checkpoint57k_post
830    o lab_sea now uses diagnostics package and provides a suite of
831      new EXF diagnostics output.
832    
833    checkpoint57j_post
834    o exf
835      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
836        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
837        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
838      * extended diagnostics output
839        - now includes all EXF variables
840        - hs, hl moved to common block
841        - separate S/R for diagnostics, called after ctrl vector is added
842        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
843        - EXFqnet contains true Qnet (i.e. includes qsw)
844      * updated verif. lab_sea, global_with_exf
845      * Rearranging hflux (exf_mapfields -> exf_getforcing)
846        to ensure that diagnostics sees a true EXFqnet
847    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
848    o diagnostics pkg: change pointers so that 1 diagnostic can be used
849      several times with different frequencies.
850    o mnc-ify the thsice package as requested by Daniel Enderton
851      - the monitor--MNC output needs work
852      - many attributes need to be added (most are currently blank)
853    o mnc-ify theaim_v23 package as requested by Daniel Enderton
854      - many attributes need to be added (most are currently blank)
855    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
856    o add Sadourny like discretization to the 4th.O vorticity advection scheme
857    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
858      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
859         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
860    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
861     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
862    
863    checkpoint57i_post
864    o Diagnostics package was changed: diagnostic allocation is now deactivated
865      by setting an empty file name in the namelist (used to be by setting 0 frequency)
866    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
867      add 1rst Order upwind vertical Shear.
868    o add a quick fix for A/B checkpointing in OFFLINE mode
869    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
870      end-run around the C/Fortran linking horror in eesup/src/timers.F
871    o added pkg/runclock: allows user to terminate run based on wall clock
872    o added non-hydrostatic scaling parameter: nh_am2
873    o pkg/my82: futile attempt to make results compiler-independent by adding
874      some "_d 0", etc. no effect.
875    o for mnc output, fill the 'T' coordinate var with myTime and create a
876      separate 'iter' variable for iteration count
877    o pkg/diagnostics:
878      add new capability: output of Global/Regional & per-level statistics ;
879      tested against monitor output (including land & thSIce) on various exp.
880    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
881    
882    checkpoint57h_done
883      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
884      data.diagnostics, data.gchem, data.ptracers) is done.
885    
886    o pkg/diagnostics: prepare for Global/Regional statistics.
887      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
888    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
889      and rename it: DIFFERENT_MULTIPLE
890    
891    checkpoint57h_post
892    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
893    o pkg/diagnostics: change output frequency, now in seconds (instead
894      of Nb of iterations). This requires to change data.diagnostics.
895    checkpoint57h_pre
896    
897    o in mnc, let the user create the output dir if both mnc_outdir_date
898      and mnc_outdir_num are false
899    o add fflags() to pkg/diagnostics which allows one to specify, on a
900      per-file basis, the file precision [default behavior is unchanged]
901    o added diagnostics to pkg/kpp, including computation of mixed layer
902      depth based on a temperature/density criterion
903    o updated verification/natl_box to test the new pkg/kpp diagnostics
904    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
905    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
906    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
907      not mnc -- this mistake was found by JMC and is now corrected
908    
909    checkpoint57g_post
910    o add Adams-Bashforth 3rd Order time stepping:
911      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
912      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
913    checkpoint57g_pre
914    
915    o make lambda[Theta,Salt]ClimRelax spatially varying
916      (default remains spatially uniform constant based on tau)
917    o added new control variables
918      * init. uVel, vVel, etanN
919      * lambda[Theta,Salt]ClimRelax
920    o separate masks used for ctrl_pack/unpack 'from write_grid' output
921      (suggested by G. Forget)
922    
923    checkpoint57f_post
924    o add parameter "baseTime" = model base time = time at iteration zero
925      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
926      account for baseTime shift
927    o move Coriolis arrays from PARAMS.h to GRID.h
928    checkpoint57f_pre
929    
930    o mnc-ifying the seaice package
931    o introduced an alternative length scale calculation for use in the limiting
932      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
933    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
934    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
935      as well as grad(vort3).  Made it compatible with both approximate form
936      for the cubed sphere and full form of these gradients.  Added flag
937      useFullLeith to select between approximate and full form.  
938    o add "d0" in getcon.F to reduce differences between compilers/platforms
939      update output.txt of exp. fizhi-gridalt-hs
940    o change port_rand funtion to allow to set the seed.
941    o fix obscure MNC bug involving conversion between reals and integers
942      - it caused no problems with certain (eg. gcc, ifc) compilers but the
943        new version is now more standards-compliant
944    o adjoint-related modifications
945      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
946      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
947      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
948    
949    checkpoint57e_post
950    o Adding eddy stress controls a la Ferreira et al.
951    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
952    
953    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
954      update output.txt of exp. fizhi-gridalt-hs
955    o add more "Z" dimensions and associated coordinate vars to MNC
956    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
957    o parameter calendarDumps: when set, approximate months (30-31 days) and years
958      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
959      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
960      months and years.  Requires pkg/cal.
961    o diagnostics: add pickup functionality
962      - off by default for backwards compatibility
963      - current version only uses MDSIO -- MNC will be added
964    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
965    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
966    
967    checkpoint57d_post
968    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
969    o modify verification/ideal_2D_oce so that it tests the creation of mnc
970      output from the diagnostics package
971    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
972    o make genmake2 more portable by using ".$FS" instead of ".f" for more
973      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
974    o add coordinate variables to the MNC output from the diagnostics package
975    o change MNC-flags default value: true when useMNC=TRUE
976    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
977      the ability (off by default) to read the grid information using MNC
978    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
979    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
980    o do snap-shot diagnostics at the middle of the time-interval (instead of
981      at the end).
982    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
983      new test for AIM with thSIce + slab-ocean
984    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
985    o move state variable diagnostics to the beginning of the time step ;
986      (note: still needs some work specially for snap-shot diagnostics)
987      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
988    
989    checkpoint57c_post
990    o Change testing option (-ieee) to get closer agreement between g77 & ifort
991    o generate new output.txt files on faulks with g77 & the new -ieee option
992    checkpoint57c_pre
993    
994    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
995      update output.txt of exp. global_ocean.90x40x15
996    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
997      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
998    o add saltFlux(+File) forcing capability with periodicExternalForcing
999    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1000    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1001    o improvements for the MNC output from DIAGNOSTICS:
1002      - correct handling of the unlimitied dimension
1003      - all dims now have associated coordinate variables
1004      - variables located at U, V, and Corner ("Z") points are now written
1005        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1006        *all* data points are output
1007    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1008    o added pkg/seaice/seaice_monitor.F
1009    o mdsio_readfield.F can now read files visible only to master MPI process.
1010    o pkg/seaice: some test code for ice-modified ocean stress
1011    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1012      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1013      spurious negative numbers for precipitation and humidity.  Will cause
1014      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1015    o pkg/ctrl/
1016      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1017        May be enabled via doPackDiag
1018      *  introduce z-scaling of
1019         + gradient (doZscalePack) and
1020         + control (doZscaleUnpack)
1021    o pkg/mdsio/
1022      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1023      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1024    
1025    checkpoint57b_post
1026    o simplify options in diagnostics_fill arguments (remove weird combinations)
1027    o fix MNC coordinate variables so that they now contain per-face index
1028      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1029      general, EXCH2 grids are only aligned to a "local" coordinate system
1030    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1031    o Implement instantaneous output within pkg diagnostics:
1032      setting a negative frequency in data.diagnostics produces
1033     "snap-shot" output (as opposed to time-average if freq > 0)
1034    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1035      NOTE: change ptracer diagnostics name: use 2 characters to work with
1036            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1037    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1038      becomes the coordinate variable for the 'T' dimension
1039    o add CF-style coordinate variables to MNC
1040      - just a first cut:  numbers are meaningless on the cubesphere and
1041        missing along the T axis but otherwise it works!
1042    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1043    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1044    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1045      this is based directly on what the model compute, so that the content of
1046      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1047    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1048    o clean up build options files for SunOS, in particular
1049      - remove -traditional from xmakedepend
1050      - change -xarch=v9 to -xarch=native for f77
1051      - restore use of make (not gmake)
1052      - add CC=gcc if using g77
1053    o changes per discussion of AM, JMC, & EH3 today:
1054      - move redundant "grid" variables out of "state" -- in preparation of
1055        creating proper CF-style coordinate variables and in recognition
1056        that any/all grid variables can be easily copied (eg. w/NCO) from
1057        the grid files into any of the other NetCDF files
1058      - *always* output grid variables with MDSIO (this will eventually be
1059        changed)
1060      - output MNC grid file if useMNC is true
1061    o every instance of _END_MASTER() has been found and replaced with
1062      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1063      preprocessors
1064    o re-arrange diagnostics pkg initialisation:
1065     - allow each package to extend the available diagnostics list
1066     - add some checking and fix small problems (multi-threaded, ...)
1067     - new S/R diagnostics_fill (replace fill_diagnostics):
1068       look through the short list of active diag. (instead of the long list)
1069       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1070    
1071    checkpoint57a_post
1072    o this set of changes restores TAMC compatibility
1073      tested for global_ocean.90x40x15 adjoint on trough
1074      (what a pain)
1075    
1076    checkpoint57a_pre
1077    o some modifs in tools/build_options for sunos
1078    o call ctrl_pack for ctrl at end for optimcycle=0
1079    
1080    checkpoint57
1081    o add horizontal bi-harmonic viscosity for vertical velocity
1082      - new parameter viscA4W (defaults to viscA4)
1083      - affects only non-hydrostatic code
1084      - to be done: no-slip lateral boundary conditions
1085    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1086    o implement Implicit Vertical advection for pTracers
1087    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1088      (implemented also for implicit vertical diffusion & advection)
1089    o OBCS: extend application of tracer open boundary conditions
1090      to a strip beyond the boundary of width Olx/Oly
1091    o add call monitor to TAF set of required calls (flow directives)
1092      and include in natl_box_adjoint
1093    o untangle a few ifdefs related to cost, ctrl, autodiff
1094      untangel a few ALLOW_ECCO_OPTIMIZATION
1095    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1096      (theta2, salt2 in ecco_cost_weights)
1097    
1098    checkpoint56c_post
1099    o OBCS as control variables
1100      - update ctrl_ad_diff.list, obcs_ad_diff.list
1101      - remove balance of obcs controls from default
1102      - fix index bug nobcs in ctrl_init
1103      - fix dummy fields filen in ctrl_pack
1104      - add dummy weights for obcs
1105    o lsopt: comment out fort.94 output
1106    o optim:
1107      - remove unnecessary header files
1108      - adjusted namelists
1109      - add xerbla.F to Makefile
1110    o exf:
1111      - multiple modifications of exf_check_range
1112      - unit change in exf_init_runoff from [m/year] to [m/s]
1113    o mdsio:
1114      - i/o-vector change debugLevel from debLevA to debLevB
1115    
1116    checkpoint56b_post
1117    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1118      is called from DO_THE_MODEL_IO
1119      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1120      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1121      - clean up PTRACERS_WRITE_TIMEAVE a little
1122    o add another verification experiment that tests both the cfc-pkg and
1123      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1124      reactive tendencies treated inline with regular timestepping
1125    o testreport previously did a lousy job of comparing small numbers, so
1126      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1127      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1128      testreport.
1129    o ptracers_monitor: bug fix for MPI
1130    
1131    checkpoint56a_post
1132    o GCHEM: finish reorganizating the package
1133      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1134        (introduces another 3D-array for each passive tracer, but only if
1135        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1136        gchemTendency is not needed because the timestep is done separately)
1137      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1138      - GCHEM is now---more or less cleanly---separate from PTRACERS
1139      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1140        so clear to me how that should be done in a general way.
1141    o CFC: improve formatting of output in CFC_ATMOS
1142    o PTRACERS:
1143      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1144        that ALL experiments with ptracers enable can be checked. This makes
1145        GCHEM_MONITOR obsolete.
1146      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1147        monitorFreq
1148      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1149    o add PTRACERS (PTR0[1-5]) to testreport output
1150    o exf_check_range:
1151      * default changed to .TRUE.
1152      * will check values for niter0 if debLevA, every timestep if debLevB
1153      * STOP in exf_check_range if 'out of range'
1154      * range chosen generous to allow for potential extema
1155      TBD: a version with stricter range
1156           permitted range would be runtime parameters
1157    o GMredi:
1158      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1159      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1160      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1161    o GCHEM:
1162      - move call to GCHEM_FORCING_SEP, so that it is now called before
1163        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1164      - introduced a useGCHEM runtime flag and applied it everywhere.
1165      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1166        this flag is now only visible within GCHEM-pkg routines.
1167      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1168        be replaced by a 3D array that is computed before thermodynamics; for
1169        this, the tracer ID iTracer had to be included into the parameter list
1170        of ptracers_forcing
1171      - set up forward_step to call gchem_forcing, that will replace
1172        gchem_forcing_int in ptracers_forcing
1173      - cleaning up
1174    o small cleaning of exch2: remove files that are also in eesupp/src
1175    
1176    checkpoint56
1177    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1178    o mnc: cleanup "full" files--fixes out-of-memory problem
1179    o ECCO-GODAE
1180      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1181      * fully merged and updated from SIO code
1182        windstress sign change affects
1183        - exf_inscal_[u/v]stress
1184        - sign of xx_tau[u/v] adjustments
1185        - signs in cost_scat
1186      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1187      * natl_box_adjoint updated and compressed
1188      * 2-level checkpoint switch added
1189        (tested in EXP. 1 of natl_box_adjoint)
1190      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1191    o SVD
1192      * first complete, non-hacked version for SVD calculations
1193      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1194        performed via direct access files admtlm_vector.it????
1195        (via ctrl_[un]pack)
1196      * optimcycle is used for ARPACK iteration counter
1197        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1198      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1199        and add linear transforms where necessary
1200      * controls are initial/final SST, SSS (can be extended; need to check
1201        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1202    o mdsio: filename info to both stderr, stdout
1203    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1204      from sign change
1205    
1206    checkpoint55j_post
1207    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1208      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1209    o add consistent build directories and .cvsignore files to verification
1210    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1211    o make all subroutines 30 or less characters in length for certain older
1212      compilers to work (a thorough search only turns up two routines in
1213      pkg/ptracers)
1214    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1215      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1216    
1217    checkpoint55i_post
1218    o change arrays for total vertical diffusivity (2.D if explicit,
1219      3.D if implicit) ; each ptracer uses its own background value.
1220    o added mnc/NetCDF output capability to ocn_compon_interf
1221      - added bits to verification/cpl_aim+ocn so that it can run on
1222        ITRDA and other clusters without the mpirun "-wd" option
1223    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1224      configuration
1225    o give MNC the ability to create additional files rather than
1226      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1227      - the default is just less than 2GB which is a practical limit
1228        on many systems
1229    o Compute the non-local term using either KPP vertical diffusivity (=default)
1230       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1231    
1232    checkpoint55h_post
1233    o add verification test "vermix"
1234    o remove all the *_ioinc flags and replace with the single global
1235      outputTypesInclusive flag
1236    o allow to set a vertical profile of vertical diffusivity for T & S
1237    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1238    o useMNC moved from data.mnc to data.pkg
1239    
1240    checkpoint55g_post
1241    o Renaming carbon AD experiments to comply with testreport conventions
1242    o Updating adjoint of Held-Suarez hs94.1x64x5
1243    o Fixing directives for non-ECCO forward_step, after ECCO directives
1244      have been fixed to avoid recomp. of do_oceanic_phys
1245      Works well for global_ocean.90x40x15,
1246      but recomp. issue remains for carbon
1247    o Updating adjoint output for natl_box_adjoint after
1248      pkg/ecco has been modified (see taga c55d_post)
1249    
1250    checkpoint55f_post
1251    o rename to timeave_init_fixed
1252    
1253    checkpoint55e_post
1254    o some delicate re-shuffle of store directives to avoid one
1255      extra call of do_oceanic_physics
1256      affects ecco_the_main_loop.F, do_oceanic_physics.F
1257      checkpoint_lev1_directives.h
1258    o NB: this may break global_ocean adjoint temporarily,
1259      but it is clear how to fix it. Will do later, need this now.
1260    
1261    checkpoint55d_post
1262    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1263    o ecco_cost_weights is modified to 1x1 runs
1264    o modifs to allow observations to be read in as
1265      single file or yearly files
1266    o enable to read exf forcing fields as either
1267      single file or yearly files (flag useExfYearlyFields)
1268    checkpoint55d_pre
1269    
1270    o switch between 2-level and 3-level checkpointing
1271    o add ability of MNC to write local and "partial" (eg. 2D slices where
1272      the full 3D field is never actually stored) arrays to NetCDF files
1273      with the correct (that is, the complete multi-dimensional) set of
1274      array indicies
1275      - used in mom_vecinv() to write the diagFreq output
1276      - tested (demonstrated) in verification/aim.5l_cs
1277    o further mnc-ification
1278      - add verification/lab_sea to the list with mnc setups
1279      - fix undefined mnc v-names in cd_code
1280      - add kpp to mnc output (both snapshot and timeave)
1281    o non-hydrostatic code
1282      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1283        in calc_gw.F
1284      - defaults to viscAh
1285      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1286        friction or Leith) in non-hydrostatic mode, as long as there is
1287        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1288    o pkg/cost
1289      extend simple cost functions to treat time mean quantities
1290      (T,U,V) via cost_accumulate_state from cost_tile
1291    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1292        be 2 times larger than the minimum size the advection scheme requires.
1293        now get a perfect conservation of salt in advect_cs test-exp (updated)
1294    o GGL90 (Gaspar's TKE mixed layer)
1295      - add horizontal diffusion of TKE, requires exchanges in
1296        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1297        default. In OPA there is no horizontal diffusion of TKE but the
1298        mixing coefficients are computed from a horizontal average of TKE of
1299        6 points or so. I think that diffusion has a little more physical
1300        justification.
1301      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1302        was in vain)
1303      - mask tke-variable in ggl90_init
1304    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1305    o fix biharmonic diffusion on CS-grid.
1306    o more obcs stuff
1307      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1308        for reading boundary values. This routine is called from
1309        obcs_prescribe_read
1310      - updated obcs_check
1311      - changed sponge layer relaxation parameter units for days to seconds
1312      - turned off sponge layer by default
1313      - changed argument list of OBCS_CALC to myTime+deltaTclock
1314      - fixed about 35 bugs in obcs_external_fields_load
1315    
1316    checkpoint55c_post
1317    o obcs stuff
1318      - new runtime flags useOBCSprescribe, useOBCSbalance
1319      - re-arranged obcs_calc
1320      - moved exf_getobcs to obcs_prescibe_read
1321        obcs_prescibe_read is called after ORLANSKI stuff
1322        and independent of it (executable can contain all).
1323      - updated obcs_check
1324      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1325        These may be necessary only if tangential velocities are
1326        prescribed at OB, not sure, needs testing.
1327    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1328      which simplifies the calls and passes the ifc check-bounds test
1329    
1330    checkpoint55b_post
1331    o add a 2D scalar, Z location, exchange_2 routine.
1332    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1333      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1334      affects advect_cs results (for the wrong reason): update output.txt
1335    o use a more standard discretization for biharmonic viscosity ;
1336     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1337      affects results of dome set-up: update output.txt
1338    o fix gad_advection.F (CubedSphere part), back to version 1.23
1339    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1340    
1341    checkpoint55a_post
1342    o merged code to
1343      * prescribe/read time-dependent open boundaries
1344        (works in conjunction with exf, cal)
1345      * sponge layer code for open boundaries
1346      * each boundary N/S/E/W now has its own CPP option
1347        (healthy for the adjoint)
1348    
1349    checkpoint55
1350    o up-to-date adjoint of previous breaks
1351      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1352      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1353      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1354      - carbon: * remove tr1-related adjoint verification
1355                * add ptracer as control variable
1356    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1357      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1358    
1359    checkpoint54f_post
1360    o in verification/carbin/ remove experiment related to
1361      ALLOW_PASSIVE_TRACER (array tr1 etc)
1362      code_ad/ input_ad/ results_ad
1363    
1364    o add two new packages
1365      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1366        + subject to optimization (memory)
1367      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1368        + subject to reordering (many GOTOs in the original code)
1369        + so far opps is called for every (i,j) point, and then operates in
1370          the vertical; one may want to reorder the scheme in order operate in
1371          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1372          fields)
1373    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1374      - all verification tests compile and run with linux_ia32_g77
1375      - defaults are compatible with current input files--nothing
1376        should change if you were not previously using MNC
1377      - MNC output has been added in numerous places (eg. timeave)
1378        but there are still a few writes not yet do-able with MNC
1379        (this is in progress)
1380      - flags now allow for either/or/both use of MDSIO and MNC and
1381        documentation will soon follow
1382      - numerous small formatting cleanups for ProTeX
1383    o add version info (via BUILD_INFO.h) to MNC and stdout
1384    
1385    checkpoint54e_post
1386    o add two new packages
1387      - pp81 (Packanowski and Philander, 1981), Richardson number and
1388        stratification dependent mixing
1389      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1390      - these scheme operate in a similar manner as KPP (without ghat, of
1391        course), however there is only one diffusivity that is used for both
1392        temperature and salinity (and passive tracers)ç
1393    o add offline package
1394    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1395      provided by Stephanie Dutkiewicz
1396    o genmake2: add ability to search for C compilers and cleanup test output
1397      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1398    
1399    checkpoint54d_post
1400    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1401    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1402      leading to additional shift by 5 days each year of integration
1403       (i.e. leading to considerable offset over the years)
1404    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1405    o start with no AB and no initial filtering (staggerTimeStep):
1406      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1407    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1408      (external loading & cpl import/export stay in forward_step.F)
1409    o update coupling interface to work with new staggerTimeStep
1410    o change MDSIO ptracers_pickup.
1411    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1412    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1413    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1414    
1415    checkpoint54c_post
1416    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1417      this affects (truncation error) output.txt of test-exp:
1418       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1419    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1420    o change Qnet to always be the net heat flux, (+upward).
1421      affects (truncation error) output of natl_box exp.: updated
1422    o define the max number of passive tracers in PTRACERS_SIZE.h
1423    o start to test mnc routinely in exp0
1424    o add sea-ice loading (sIceLoad) as a new forcing field.
1425    
1426    checkpoint54b_post
1427    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1428       impressive on Altix and Opteron systems)
1429    o diagnostics can now write NetCDF files through the mnc package
1430    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1431    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1432    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1433      affects (truncation error) output of lab_sea & natl_box exp.: updated
1434    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1435    
1436    checkpoint54a_post
1437    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1438    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1439    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1440    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1441      + internal_wave (shift in writing cg2d_ini_res)
1442    checkpoint54a_pre
1443    
1444    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1445      - modified verification/lab_sea and natl_box_adjoint accordingly
1446    
1447    checkpoint54
1448    checkpoint53g_post
1449    o prepare splitting of thermodynamics: store convect.counter in common block
1450    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1451      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1452    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1453    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1454    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1455    o restore adjointability
1456    
1457    checkpoint53f_post
1458    o modifications that affect AIM experiment results (update output.txt):
1459      - no advection of S at top interface Nr (pkg/generic_advdiff)
1460      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1461    o AIM pkg:
1462      - include stability function into surf.Flux derivative relative to Tsurf
1463      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1464    
1465    checkpoint53e_post
1466    o merged cylindrical coord configuration
1467    o added rotating_tank experiment
1468    checkpoint53e_pre
1469    
1470    checkpoint53d_post
1471    o faulks upgraded: re-generate output.txt that have changed:
1472       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1473    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1474    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1475    o added Sadourny discretization of Coriolis
1476      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1477      - re-enabled use of omega3 (useAbsVorticity)
1478    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1479      vector-invariant equations
1480      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1481    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1482      hopefully without new bugs
1483      - still to do: biharmonic friction for non-hydrostatic w
1484    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1485    o regenerated output for global_ocean_ebm (using -ieee)
1486    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1487      of mom_common/
1488      - simple re-arrangement of instructions within computing loop
1489    checkpoint53d_pre
1490    
1491    checkpoint53c_post
1492    o new version of coupler for AIM+thSIce and Ocean models
1493     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1494     - land: change Evaporation of snow
1495     - aim with thSIce: fix bug in snow-precip.
1496    o changes to calc_gw.F
1497     - bug fix for w^2 term near the bottom boundary
1498     - (hopefully) improve the lateral slip boundary condtions for use with
1499        partial/looped cells
1500      - because the bug fix changes two verification experiments anyway (exp5
1501        and plume on slope), change the lateral boundary condition from half slip
1502        to the value of no_slip_sides
1503    o ebm package wasnt quite up to the parallel task. Fixed that.
1504    o Adjoint of EBM package + verification
1505      * TLM OK
1506      * ADM not sufficient accuracy yet (needs further testing)
1507    
1508    checkpoint53b_post
1509    o Commiting new energy balance model to repository
1510      * package is pkg/ebm
1511      * verif. is verification/global_ocean_ebm
1512      * references are in ebm_driver.F
1513    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1514    C        Global thermohaline circulation. Part I:
1515    C        Sensitivity to atmospheric moisture transport.
1516    C        J. Climate 12(1), 71-82
1517    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1518    C        Global thermohaline circulation. Part II:
1519    C        Sensitivity with interactive transport.
1520    C        J. Climate 12(1), 83-91
1521    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1522    C        Destabilization of the thermohaline circulation
1523    C        by atmospheric eddy transports.
1524    C        J. Climate 7(12), 1870-1882
1525    o Will need long integration testing.
1526    checkpoint53b_pre
1527    
1528    o created pkg/mom_common in preparation for variable viscosity code
1529    o renamed and split ini_mnc_io
1530    o pkg/land: only liquid water can diffuse or run-off
1531    o AIM using land: soil wetness availability account for snow
1532    o added printMapIncludesZeros to EEPARMS namelist
1533    
1534    checkpoint53a_post
1535    o restore TAMC compatiility for exf_constants.h
1536      (no usage of _d in .h)
1537    o Additional storing in KPP in an attempt to fix
1538      TAMC problem with adjoint of KPP code.
1539      (no success...)
1540      Identical code works fine with TAF.
1541    o Fixed verification/natl_box_adjoint experiments.
1542      Initial conditions for Experiments 4 and 5 are now
1543      set to "SEAICE_initialHEFF=0", which is more reasonable,
1544      and hence gives results closer to that of Experiment 2.
1545      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1546    
1547    checkpoint53
1548    o stable checkpoint with up to date adjoint
1549      TLM tests only run for 1st grdchk at the moment. Its unclear if
1550      this is a code problem or a problem with resetting code for g_
1551      variables that is being autogenerated wrong.
1552      Otherwise:
1553       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1554       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1555         are both still in chaos following their security messes.
1556    
1557    checkpoint52n_post
1558    o various build (mostly genmake2) changes including:
1559      - ability to build/run more easily within Cygwin and MacOS X
1560      - more complicated Makefiles with a stronger dependence on Gnu Make
1561    o pkg/seaice modifications
1562      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1563        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1564        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1565      - changed proxy for geostrophic velocity and updated
1566        verification/lab_sea/results/* accordingly
1567      - removed ADI dynamic solver from pkg/seaice
1568      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1569        they caused a segmentation fault under certain circumstances
1570      - removed unused field WATR
1571    o bug fix in exf-package:
1572      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1573         now reflect that.
1574    o small fixes in the cal-package:
1575      - set reference date to first of January for the 'model'-calendar
1576      - failing of cal_CheckDate in cal_FullDate now actually results in a
1577        warning
1578    o small modifications in exf-package to increase flexibility:
1579      - change climtempfreeze from a constant to a runtime parameter that
1580        is specified in data.exf_clim (default = -1.9)
1581      - introduce runtime parameter windstressmax (default = 2.0) that is
1582        specified in data.exf
1583    o fix in pkg/thsice:
1584      - update Evap (Tsf changes) to be consistent with Latent heat flux
1585      - maintain snow precipitation unchanged (even if Tsf >=0).
1586     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1587    
1588    checkpoint52m_post
1589    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1590      this does not change any of the results, because myIter=0 in swfrac always
1591      lead to jwtype=2 (the default anyway), but the call makes little sense
1592      as a default
1593    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1594    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1595      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1596    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1597    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1598    o extending useSingleCpuIO option to work with new exch2 I/O format
1599      - old-style, missing-tile I/O is still accessible by defining CPP
1600        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1601    o monitor package can write to NetCDF files and/or STDOUT
1602    o fix re-definition bug in MNC_GRID_INIT_ALL()
1603    o doc/api_reference added
1604      - a framework for building an API Reference Manual using all
1605        the "protex" comments embedded in the code
1606      - see pkg/generic_advdiff, pkg/mnc for examples
1607    o MNC:
1608      - make myThid the last argument for all subroutines
1609      - new default for the grid files: NO halos
1610      - add useMNC and other run-time flags
1611      - separate per-file-group handling of the unlimited dimension
1612      - early initialization of MNC w/ flags read at the eeboot stage
1613        and lookup tables set in initialize_fixed
1614      - write all MNC output to a freshly-created directory
1615    o thermodynamics sea-ice (thsice) is now tested with testreport.
1616    o test exp. advect_cs: use the standard cs32 grid ; update output.
1617    o Added functionality to grdchk:
1618      pick global i,j,k position (or nearest wet) where to perform check.
1619    
1620    checkpoint52l_post
1621    o new land formulation:
1622      a) use ground enthalpy as prognostic variable to ensure exact
1623         energy conservation.
1624      b) account for water temperature and for latent heat of freezing
1625         in all processes (rain, run-off, ground storage)
1626      c) compute surface and ground temperature implicitly.
1627    o aim_v23 modification for new land model:
1628      a) Treat separately land / ocean / sea-ice surface fluxes
1629         to allow implicit computation of land & sea-ice surface temp.
1630      b) add snow precipitation.
1631    checkpoint52l_pre
1632    
1633    o fix problem (when 1 tile is empty) in min/max monitor.
1634    o fix bug in timeAve (u,vZetatave in common block)
1635    o no restoring terms under ice for pkg/seaice
1636    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1637    o bug fix for pkg/seaice pickups
1638    o change MNC call locations and add coordinate attributes
1639    o mask vorticity at the corner ; affects global_ocean.cs output
1640    o fix ini_curvilinear_grid ; test CS experiments with mpi
1641    o aim.5l_cs: modify sea-ice fraction input file ; update output
1642    o exf: Adding simple range check routine for exf fields after read
1643    
1644    checkpoint52k_post
1645    o removed top-level directory "diags"
1646      - we migrated these functions to pkg/timeave a long time ago
1647    o fixed bug introduced in pkg/monitor
1648    o accuracy ctrlprec = 32 insuffient for gradient checks using
1649      averaged fields (I/O via cost_averages)
1650      -> use ctrl.h in active_file*.F to control I/O precision.
1651    o paramter list of CALL ADTHE_MAIN_LOOP
1652    o added initial do_the_model_io to ecco
1653    o set all ...Freq to zero after cost_final
1654      taveFreq, dumpFreq, pChkptFreq
1655    o MAIN and ECCO differentiability restored
1656    
1657    checkpoint52j_post
1658    o fix nchklev in tamc.h for global_ocean...
1659    o Bringing flow and store directives up-to-date
1660    o Really weird thing!
1661      call do_the_model_io from the_main_loop with parameters
1662      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1663      TAF places a faulty re-call of initialise_varia
1664      after cost_final call which should not be there!
1665    checkpoint52j_pre
1666    
1667    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1668      error messages
1669    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1670    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1671      debug output
1672    o modfied mdsio_writefield.F to handle non-global files under exch2
1673    o update AIM Cubed-Sphere exp (aim.5l_cs):
1674      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1675    o update AIM Equatorial Channel exp:
1676      use standard aim_v23 pkg and change the SST fields to be more realistic.
1677    o globalFile now works with exch2
1678    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1679      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1680    o limit timeave output for hi-res integrations
1681    
1682    checkpoint52i_post
1683    o removed CPP_EEOPTIONS.h from verification/*/code
1684    o updated the tiling for global_ocean_pressure
1685    checkpoint52i_pre
1686    
1687    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1688      the old pkg/aim).
1689    
1690    checkpoint52h_pre
1691    o shortened offending lines in exch2_send_rx?.template
1692    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1693    o genmake2: add build & execute test for NetCDF code
1694    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1695      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1696    o added useSingleCPUIO flag to monitor.F and mon_out.F
1697    o added temporary hack for sea-ice dynamics on the cube:
1698      metric terms are ignored and it is assumed that
1699      there is no sea-ice on cube faces 1, 2, 4, and 5.
1700    
1701    checkpoint52f_post
1702    o added exch2 cube routines to pkg/exch2
1703    o modified hs94.cs-32x32x5 to use it
1704    o added new grid files to hs94.cs-32x32x5
1705    checkpoint52f_pre
1706    
1707    checkpoint52e_post
1708    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1709      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1710    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1711      to work with implicit vertical advection and AB ;
1712    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1713    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1714     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
1715    checkpoint52e_pre
1716    
1717    o fix bug in impldiff when Nr=1 or Nr=2.
1718    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
1719    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
1720    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
1721      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
1722    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
1723    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
1724    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
1725    
1726    checkpoint52d_post
1727    o re-tiled many expts to allow comparison in multi-processor mode
1728      - updated output accordingly
1729      - changed hs94.128x64x5 to use intial T from file rather than use the
1730        random number generator
1731    o add infrastructure in model routines for fizhi and gridalt packages
1732    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
1733    o changes to permit hi-res, cubed-sphere, configuration
1734      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
1735      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
1736      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
1737        of surface winds for the cube
1738      (A verification experiment, based on global_ocean.cs32x15, but with
1739       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
1740       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
1741       complete with example surface forcing files and matlab scripts to look
1742       at the output and compare it with that of global_ocean.cs32x15.)
1743    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
1744       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
1745       to conform to the common rule.
1746    o check-in the first version of the coupler + interfaces for multi-components
1747       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
1748       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
1749       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
1750       - ocean and atmos. share the same horizontal grid (no interpolation).
1751       - exchanges between component and coupler is done in forward_step
1752    o new verification experiment, cpl_aim+ocn:
1753       coupled ocean - AIM atmosphere on cs32 grid.
1754    
1755    checkpoint52d_pre
1756    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1757    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1758    
1759    checkpoint52c_post
1760    o Fixing OPTIONS files for use of exf:
1761      - ALLOW_ECCO not needed
1762      - ECCO_CPPOPTIONS.h should not be included from
1763        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1764        as has been the case in the past
1765      - All cal/exf related options are currently set in
1766        single header file. Should remain so until we
1767        agree on a consistent new policy.
1768    o Removed all CPP options for cal package.
1769      cal has no more CPP options.
1770    o modified STOREs in GAD_ADVECTION
1771    o corrected key comp. for passkey
1772    
1773    checkpoint52b_post
1774    o new version: "thsice" of thermodynamic sea-ice pkg:
1775     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1776     - modify fluxes but do not change theta directly;
1777     - light cleaning of bulk_force pkg (still needed with thsice).
1778     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1779       + output_thsice.txt to test thsice & bulk_force pkgs.
1780    o put back grid & coriolis monitor output.
1781    checkpoint52b_pre
1782    
1783    o call "do_the_model_io" at the beginning (=> dump initial state)
1784    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1785    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1786      (need info on NUMBER_OF_PTRACERS)
1787    o missing PTRACERS headers in some routines
1788    o default tamc.h in pkg/autodiff supposed to crash
1789      to ensure proper customization
1790    
1791    checkpoint52a_post
1792    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1793      - moved surfaceTendencyTice from pkg/seaice to main code
1794      - subroutine FREEZE_SURFACE now limits only surface temperature
1795        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1796        => new output.txt for global_ocean.cs32x15 & global_with_exf
1797      - keep the old version of FREEZE for backward compatibility;
1798        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1799      - corresponding modifs for TAF directives
1800    o added surface flux output variables to TIMEAVE_STATVARS
1801    o time-averaged output for pkg/ptracers
1802    o fix problem with ECCO-related divided adjoint
1803      snapshot file was missing some ad-variables,
1804      but no warning issued by TAF
1805    
1806    checkpoint52a_pre
1807    o some bug fixes for #undef REAL4_IS_SLOW
1808    
1809    checkpoint52 = ecco_c52_e35
1810    o after testing adjoints of checkpoint51u_post
1811    
1812    checkpoint51u_post
1813    o this is the post-merge tag of the ecco-branch
1814      (needs another clean checkout and re-testing)
1815    o various natl_box_adjoint configs and results
1816      but no input fields
1817    o obcs adjoint not yet merged!
1818    o adding ECCO global 1x1 and 2x2 degree configs
1819    o updated/extended some store directives for seaice
1820    o pkg/ecco now containes ecco-specific part of cost function
1821    o top level routines the_main_loop, forward_step
1822      supersede those in model/src/
1823      previous input data.cost now in data.ecco
1824      (new namelist ecco_cost_nml)
1825    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1826    
1827    checkpoint51t_post
1828    o this is the pre-merge tag of the ecco-branch
1829    
1830    checkpoint51s_post
1831    o cleanup: removed various obsolete #define-s
1832    o pkg/grdchk
1833      - renamed 'ph-grd 3' to 'grad-res'
1834      - merged from ecco-branch
1835        (remaining bug fixes for obcs gradient checks)
1836      - additional high-precision output for testreport
1837        (grep for 'precision_grdchk_result')
1838    
1839    checkpoint51r_post
1840    o cleaned up or removed CPP_OPTIONS.h files
1841    o updated results for some of the tests to reflect the new
1842      optfiles (-ieee: -O0 instead of -O3)
1843    
1844    checkpoint51q_post
1845    o cd_code:
1846      - moved cd_scheme.F -> cd_code_scheme.F
1847      - separate read_checkpoint from cd_code_ini_vars.F
1848      - separated cd_code part from write_checkpoint
1849      - updated AD_SOURCE, generated .flow
1850      - added CD_CODE_VARS.h to the_main_loop
1851      - Moving cd_code specific store dir.s to pkg/cd_code
1852    o ctrl package totally restructured
1853      - pack/unpack now optional and decoupled from
1854        xx_/adxx_ I/O
1855      - ctrl_pack/unpack cleaned
1856        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1857      - confined inclusion of AD_CONFIG.h to where necessary.
1858    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1859    
1860    checkpoint51p_post
1861    o create initial cd_code package
1862      - WARNING: the initialization of fields within packages
1863        is broken because INI_FIELDS (where READ_CHECKPOINT is
1864        called) is called *before* PACKAGES_INIT_VARIABLES.
1865        This seems to be backwards since
1866        1) its important to initially zero the entire field including
1867           the "halo" region
1868        2) zeroing needs to be done *before* reading pickup info
1869           and the pickup call might or might not happen in any
1870           particular run
1871      - this needs an overhaul for R2
1872    o cleanup verification/*/code/GMREDI_OPTIONS.h
1873    o cleanup testreport
1874    
1875    checkpoint51o_post
1876    o bringing AD-related verif's up to date with genmake2
1877      - carbon/
1878      - global_ocean.90x40x15/
1879      - hs.94.1x64x5/
1880      - (front_relax/ )
1881    o (more) consistent directory structure for AD-related verif.'s
1882    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1883    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1884    o bug fix in find_alpha.F for MDJWF:
1885      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1886        change rho -> rho-rhoConst
1887      - replace call find_rho to find_rhonum
1888    o initialisation of rFlx extended to full array (required by TAF)
1889      and shifted to thermodynamics
1890    o removed PTRACERS.h in ptracers routine
1891    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1892    o Correcting initialisations for fVerU, fVerV.
1893    o helping TAF to recognize dependency on kUp for
1894      fVerU, fVerV
1895    o Replacing delZ by delR in pkg/ctrl/
1896    checkpoint51o_pre
1897    
1898    o undid all of cp51 pending some cleanups and discussion
1899    o added the [#include "AD_CONFIG.h"] statement to all files that need
1900       it for adjoint/tl #defines
1901     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1902     o removed tools/genmake since it no longer works
1903    
1904    checkpoint51n_post
1905    o modifications to make FREEZE flux visible to pkg/kpp
1906      - moved surfaceTendencyTice from pkg/seaice to main code
1907      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1908      - subroutine FREEZE now limits only surface temperature
1909        (this means new output.txt for global_ocean.90x40x15,
1910         global_ocean.cs32x15, and global_with_exf)
1911    o added surface flux output variables to TIMEAVE_STATVARS
1912    
1913    checkpoint51n_pre
1914    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1915    o added [#include "AD_CONFIG.h"] to all files that use the following
1916      defines:
1917      - ALLOW_ADJOINT_RUN
1918      - ALLOW_TANGENTLINEAR_RUN
1919      - ALLOW_ECCO_OPTIMIZATION
1920    
1921    checkpoint51m_post
1922    o incorporating changes to get TAMC/TAF working in genmake2
1923      - added new TAMC/TAF targets to the Makefile
1924      - various cleanups related to package handling
1925      - these changes should have no impact on the forward model
1926    
1927    checkpoint51l_post
1928    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1929     - faster algorithm for cal_addtime.F
1930     - higher precision arithmetic, where needed
1931     - pkg/exf *startdate variables changed from calendar date to
1932       model integration time
1933    
1934    checkpoint51l_pre
1935    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1936    o enable to apply restoring on S & T only in a latitude band.
1937    o update output (external_forcing_surf modif. change truncation errors)
1938       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1939    
1940    checkpoint51k_post
1941    o change default to: useNHMTerms=.FALSE.
1942     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1943       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1944     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1945        exp1, ideal_2D_oce
1946     - change data file of oceanic exp (leave the results unchanged for now)
1947       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1948    o set gravitySign automatically according to the vertical coordinate used
1949      (and change sign: back to "logical" value: +1 when R increases downward)
1950    o added an include barrier to the default CPP_OPTIONS.h and
1951      removed the #include "PACKAGES_CONFIG.h" from it
1952    o fix a bug in mom_fluxform (from chk51j_post)
1953    
1954    checkpoint51j_post
1955    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1956    o adjusted some flow directives (dynamics, thermodynamics)
1957    o added cubed-sphere case to test cost function
1958    o heckpoint_lev?_directives.h now include
1959      pkg-specific directives, whenever those are enabled.
1960    o Moving pkg-specific flow directives to corresponding pkg
1961      Moving pkg-specific differentiation list to corresponding pkg
1962      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1963      ---> conventions are
1964           - pkg_ad.flow
1965           - pkg_ad_diff.list
1966           - pkg_ad_check_lev?_dir.h
1967    
1968    checkpoint51i_post
1969    o merge of the branch-genmake2
1970      - knowingly breaks the older genmake
1971      - automatic generation of all ALLOW_${PKG_NAME} defines
1972      - new testreport supersedes older testscript
1973    o large number of package inclusion and header cleanups
1974    checkpoint51i_pre
1975    
1976    o new output for adjoin of global ocean vector invariant
1977    o fix for checkpoint of thermodynamic seaice and bulk_force
1978    o Steph gchem various cleanups
1979    
1980    checkpoint 51h_pre
1981    o fixed some single quotes
1982    o modify gchem pkg to be more versatile
1983    o modifications to clean up dic pkg
1984    o add pkg/cfc
1985    
1986    checkpoint51g_post
1987    o provide links for ARPACK and ADM*TLM
1988    o start removing verification/vero/
1989    o update AD-related stuff
1990      (in particular some IF-statements in model/src/ routines)
1991    o adding to verification/global_ocean.90x40x15/ adjoint of
1992      vector invariant setup
1993    
1994    checkpoint51f_post
1995    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1996    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1997      of tracer Green's fucntions for ocean inversion project.
1998    
1999    checkpoint51f_pre
2000    o Added on-the-fly spatial interpolation capability
2001        "USE_EXF_INTERPOLATION" to pkg/exf.
2002      - This is a temporary Cartesian-grid hack until
2003        the super-duper ESMF coupler becomes available.
2004      - See verification/global_with_exf/README for usage example.
2005      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2006        flags and modified pkg/seaice accordingly.
2007    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2008        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2009        non-local transport term.
2010    
2011    checkpoint51e_post
2012    o pkg/mom_vecinv:
2013      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2014      - add time-ave diagnostic of vorticity advection.
2015    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2016    o atmospheric geopotential: - include water vapor effect;
2017                                - use p^kappa in p* scaling.
2018    o land pkg: read initial state from files.
2019    o AIM : add stratospheric drag in the upper level
2020    
2021    checkpoint51d_post
2022    o change function ILNBLNK (=> last non-blank char.) to return zero
2023      (instead of the string length) when the string. char is empty
2024    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2025    o modif's to restore TAMC compatibility
2026      - avoid "_d" constructs in PARAMETER declarations
2027      - avoid interrupting lines by comment lines
2028    o Use cluster local disks for purely local I/O
2029      vs. globally visible disks needed for ctrl stuff
2030      (merged from ecco-branch)
2031      - new active_file_loc... and mdsio_..._loc routines
2032      - affected packages: autodiff, ctrl, grdchk, mdsio
2033    
2034    checkpoint51c_post
2035    o introducing integer flag debugLevel
2036      - debLevZero: suppress all output
2037      - debLevA: standard
2038      - debLevB: equivalent to current debugMode=.TRUE.
2039    o introducing pathname variable mdsioLocalDir for mdsio
2040      that can be specified at runtime
2041      (relevant for cluster I/O to local disk)
2042    `
2043    >>>checkpoint51b_post
2044    adjoint of ptracers
2045    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2046    o extended state in checkpoint_lev?, etc.
2047    o alternative ctrl/cost with tr1 or ptracer
2048    o new comlev1_bibj_ptracers
2049    o new ptracers.flow
2050    o made ptracers_forcing same as external_forcing_s
2051    o added verification for adjoint with ptracers
2052      - adm. grdchk fail so far
2053      - tlm. grdchk OK
2054      - checked tapelev/comlev recomputations: OK
2055    <<<checkpoint51b_pre
2056    
2057    checkpoint51a_post
2058    o added code for biogeochemistry package
2059      - new pkgs: dic, gchem
2060      - new subroutine in ptracers
2061    o modify code for biogeo packages
2062      - in model/src and pkg/ptracers
2063    
2064    checkpoint51
2065    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2066      - autodiff, ctrl, exf, grdchk, seaice
2067      kept separate packages
2068      - cost, ecco, obcs
2069    o updating verification/internal_wave, verification/lab_sea
2070      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2071    
2072    checkpoint50i_post
2073    o Preparing next differentiable checkpoint and sync
2074      of MAIN vs. ecco-branch
2075      - 1st step: this one is differentiable
2076      - 2nd step: next(! not this) checkpoint will have updated packages
2077                  from ecco-branch)
2078    
2079    checkpoint50h_post
2080    o new package "land": provide surface BC for AIM.
2081    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2082    o AIM: use true log-P extrapolation for near surface temp (= as in
2083        F.Molteni paper) ; update aim.5l_cs output.
2084    o New variable in PARM03 for more flexible pickups
2085    o somewhat cleaned package initialisation sequence for
2086      ctrl/ cost/ ecco/ in packages_... routines
2087    
2088    checkpoint50g_post
2089    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2090      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2091      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2092        made the default because of faster convergence than ADI
2093    
2094    checkpoint50f_post
2095    o exf totally restructured
2096      - replaced all exf_set_ routines by one generic exf_set_gen.F
2097        and made sure it's still differentiable
2098      - split exf_getffields.F into new exf_bulkformulae.F
2099      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2100      - updated adjoint/makefile and relevant verif. accordingly
2101    
2102    checkpoint50f_pre
2103     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2104          + change Evap over land. (update aim.5l_cs output)
2105     o added missing .cvsignores and made uniform across expts
2106     o changed configuration of tidal_basin_2d expt
2107     o added pkg/debug functions for tracing code in fatal crashes
2108     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2109     o new fn in pkg/monitor to stop model if solution grows too big
2110     o removed lots of single quotes from comments
2111    
2112    checkpoint50e_post
2113    o make KPP work with PTRACERS
2114     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2115       nearly a copy of kpp_transport_s
2116     - there is no analogue to SurfaceTendencyS, so I have to use
2117       gPtr(of the surface layer) instead
2118    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2119    checkpoint50e_pre
2120    
2121    checkpoint50d_post
2122    o change kpp output from multiple-record state files to single-record state
2123      files analogous to write_state.F
2124    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2125      analogous to the cg2d-related output.
2126    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2127      so that writing to internal file fn (with length 512) fails.
2128    checkpoint50d_pre
2129    
2130    checkpoint50c_post
2131    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2132    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2133    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2134    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2135    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2136    
2137    checkpoint50c_pre
2138    Merging from release1_p13:
2139    o bug fix for pkg/seaice dynamic solver
2140    o Added SEAICE_initialHEFF to pkg/seaice
2141    
2142    checkpoint50b_post
2143    o store u*,v* in gU,V instead of in guNm1,gvNm1
2144    o in order to put the momForcing out of the Adams-Bashforth:
2145      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2146      to timestep.F
2147    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2148    o re-generate output for highly sensitive test-exp:
2149       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2150    
2151    checkpoint50b_pre
2152    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2153    o corrected CPP option mismatch in exf_Bulk... functions for case
2154      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2155    
2156    checkpoint50a_post
2157    o Bug fix for merging between c50 and KPP.
2158      ikey was passed from thermodynamics to kpp_calc via
2159      common block rather than being recomputed in kpp_calc,
2160      in contradiction with new key itdkey.
2161      New key ikppkey created, and tamc.h headers updated.
2162    
2163    checkpoint50
2164    - 2nd step of merge with ecco-branch:
2165      merge changes in ecco-branch back into main trunk
2166    - bug fix in find_alpha
2167    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2168    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2169    - merged some sliced AD support routines
2170    
2171    checkpoint49
2172    merged from ecco-branch:
2173    o exf:
2174      - Enable initialisation of forcing fields to constant
2175        (runtime) values.
2176      - in exf_getffields.F
2177        Reduce i-/j-loop to interior domain, discarding overlaps.
2178        That also fixes wrong TAF-key computations for key_1, key_2
2179        with bulf formulae.
2180      - exf_init.F modify #ifdef for exf_init_evap
2181      - exf_getffieldrec.F, ctrl_getrec.F
2182        The following INT-usages are not safe:
2183          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2184          fldcount = int(fldsecs/fldperiod) + 1
2185        and were modified.
2186    o autodiff: checkpoint_lev...
2187      - updated storing for bulk formulae (some arrays were missing)
2188      - added state for seaice package
2189      - synchronized with main branch
2190    o DIVA:
2191      Modif.s in
2192      - the_main_loop.F
2193      - the_model_main.F
2194      and added cost_final_restore.F cost_final_store.F
2195      o With these changes, it is possible to fully separate
2196        the first forward run to compute the cost function (mdthe_main_loop)
2197        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2198        into separate model executions.
2199        This enables better tuning of DIVA to given queue sizes.
2200      o Loss of cost function value in consecutive DIVA runs is
2201        fixed by storing to 'costfinal' file.
2202      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2203        beginning/end of adjoint integration is accounted for.
2204      The current changes apply to TAF-1.4.26.
2205      TAF has one remaining bug, requiring one manual change
2206      (see MITgcm manual).
2207    o cal: synchronized between MAIN and ecco-branch
2208    
2209    checkpoint48i_post
2210    o Changes to restore differentiability of code w.r.t. previous tag
2211      (mostly adding new routines to make list and replacing
2212      pressure by totPhiHyd).
2213    o Updated and merged grdchk package
2214      - has both ADM and TLM checks
2215      - works for single- and multi-proc.
2216      - output cleaned
2217      - worked successfully for parallel DIVA
2218    o genmake:
2219      - Adding -platform=SP4
2220      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2221    o Modif. for DIVA:
2222      ctrl_unpack should not be called in intermediate DIVA interval.
2223      (similar thing would apply for active files such as
2224      tbar, sbar, psbar, which should not be reinitialised;
2225      only relevant for ecco-branch)
2226    
2227    checkpoint48h_post
2228    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2229    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2230    o Added SEAICE_initialHEFF to pkg/seaice
2231    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2232    
2233    checkpoint48g_post
2234    --- EOS:
2235    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2236      store total Potential in totPhyHyd for diagnostics & EOS.
2237    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2238    --- Pressure/geopotential gradient:
2239    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2240    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2241      ( changes results of global_ocean_pressure )
2242    o NLFS + z-coord.: add eta*Rho' contribution.
2243    o accurate phiHyd when using interface-W at the middle between 2 centers
2244     ( changes results of ideal_2D_oce )
2245    o includes r* 2nd term in potential gradient.
2246    
2247    checkpoint48f_post
2248    Merging from release1_p12:
2249    o Modifications for using pkg/exf with pkg/seaice
2250      - improved description of the various forcing configurations
2251      - added basic radiation bulk formulae to pkg/exf
2252      - units/sign fix for evap computation in exf_getffields.F
2253      - updated verification/global_with_exf/results/output.txt
2254    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2255      (SBO) core products, including oceanic mass, center-of-mass,
2256      angular, and bottom pressure (see pkg/sbo/README.sbo).
2257    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2258      to avoid negative values in shallow regions.
2259      - updated verification/natl_box/results/output.txt
2260      - updated verification/lab_sea/results/output.txt
2261    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2262    o Added useSingleCpuIO option (see PARAMS.h).
2263    o Updated useSingleCpuIO option in mdsio_writefield.F to
2264      work with multi-field files, e.g., for single-file pickup.
2265    o pkg/seaice:
2266      - bug fix in growth.F: QNET for no shortwave case
2267      - added HeffFile for specifying initial sea-ice thickness
2268      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2269    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2270      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2271    o pkg/seaice:
2272      - adjoint-friendly modifications
2273      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2274    
2275    checkpoint48e_post
2276    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2277    o dynamics: change definition of computational domain & adapt mom_fluxform
2278      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2279    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2280        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2281        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2282        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2283        inverted_barometer solid-body.cs-32x32x1
2284      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2285    
2286    checkpoint48d_post
2287    o in preparation for r*:
2288     a) use pre-computed gradient of hydrostatic potential:
2289        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2290     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2291        => affects results of glob_oce_pressure (different truncation error)  
2292      update output.txt of ideal_2D_oce & global_ocean_pressure
2293    
2294    checkpoint48d_pre
2295    o in preparation for r*:
2296      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2297      pass the 2 comp. of the grad. as arguments to momentum S/R.
2298      but for the moment, only used if it does not change the results.
2299    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2300    
2301    checkpoint48c_post
2302    Modifications in treatment of initial flux forcing controls
2303    to avoid extra storing of flux fields.
2304    
2305    checkpoint48c_pre
2306    o Added tidal_basin_2d experiment (currently 1D!)
2307    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2308    
2309    checkpoint48b_post
2310    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2311     (modification to pressure gradient not yet implemented)
2312    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2313      (for U & V) that are used for vertical advection of momentum.
2314    
2315    checkpoint48a_post
2316    o In preparation for r*, use temp. array to compute vertical transport
2317       in flux-form momentum pkg. => change results of few test-exp.
2318      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2319                        lab_sea, natl_box & plume_on_slope
2320    
2321    checkpoint48
2322    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2323    
2324    checkpoint47j_post
2325    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2326    o moved adexch from forward_step to addummy_in_stepping
2327    o added exch in ctrl_map_...
2328    o aveFreq.=0. at end of cost_final to avoid overwrite in
2329      reverse checkpointing loop
2330    o Yet more changes in gmredi:
2331      * adgmredi_calc_tensor
2332        avoiding all recomputation of gmredi_slope_limit
2333      * adgmredi_x/y/rtransport
2334        added flag for excessive storing to avoid recomp. of
2335        u/v/rtans, dTdx/y/z
2336        -> this is not really necessary and very memory-consuming
2337      * adgmredi_slope_psi:
2338        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2339      * gmredi_slope_limit
2340        re-activated full calculation of taperfct for case 'ac02'
2341    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2342    
2343    checkpoint47i_post
2344    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2345    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2346      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2347    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2348    o gmredi: fix few bugs.
2349    
2350    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2351    This will be a good checkpoint to plug into the ecco-branch.
2352    o few modif.'s to get latest version adjointed
2353      (mainly kick out code in ini_linear_phisurf)
2354    o modif's to run adjoint with exactConserv
2355    o case GM_BOLUS_ADVEC should be cleaned
2356      S/R gmredi_slope_psi should be cleaned
2357    o verification/carbon now has exactConserv=.TRUE.
2358    
2359    checkpoint47g_post
2360    o time-average AIM output: becomes independent from statvars time-average
2361      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2362    o After TAF bug fix:
2363      Tested adjoint of gmredi package.
2364      Tests were done with checkpoint47 rather than with latest
2365      checkpoint47f_post since the latter is broken for the adjoint
2366      verification/carbon/ contains both ADM and TLM gradient checks.
2367    Here they are, before they get changed/lost/stolen.
2368    Mostly modif.'s to fix numerical sensitivities.
2369    Gradient checks OK for
2370    - GM_taper_scheme:
2371      * clipping
2372      * ac02
2373      * linear
2374      * glw91
2375      * dm95
2376      * ldd97
2377    - GMREDI_OPTIONS:
2378      * GM_VISBECK_VARIABLE_K
2379      * GM_NON_UNITY_DIAGONAL
2380      * GM_EXTRA_DIAGONAL
2381      * GM_BOLUS_ADVEC
2382    in conjunction with data.gmredi parameters to be checked in
2383    in a few minutes under verification/carbon/code/
2384    
2385    checkpoint47f_post
2386    Merging from release1_p10:
2387    o modifications for using pkg/exf with pkg/seaice
2388      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2389        and SEAICE_EXTERNAL_FLUXES
2390      - pkg/exf CPP options EXF_READ_EVAP and
2391        EXF_NO_BULK_COMPUTATIONS
2392      - usage examples are Experiments 8 and 9 in
2393        verification/lab_sea/README
2394      - verification/lab_sea default experiment now uses
2395        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2396    
2397    checkpoint47e_post
2398    o created a tag prior to creating a branch
2399    
2400    checkpoint47d_post
2401    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2402      at the bottom boundary had an erroneous half slip boundary condition
2403    o added bottom drag and no slip boundary condition capabilities to
2404      oceanic pressure coordinates code
2405    o added new verification experiment global_ocean_pressure, this experiment is
2406      also described in the tutorial section of the manual
2407    checkpoint47d_pre
2408    
2409    checkpoint47c_post
2410    o Added a verification experiment for a global cubed-sphere ocean run
2411      -  verification/global_ocean.cubed32x32x30
2412      -  uses pkg/therm_seaice and pkg/bulk_forcing
2413    
2414    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2415    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2416      when using P-coordinate; only implemented for atmospheric config.
2417    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2418      NOTES: requires option NONLIN_FRSURF to be "#define".
2419    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2420    
2421    checkpoint47b_post
2422    Merging from release1_p9:
2423    o pkg/seaice
2424      - removed GOTO's and added taf directives
2425      - double precision constants to reduce the g77 (Linux)
2426        to F77 (SGI) differences reported in release1_p8
2427    o tools/genmake
2428      - added SGI options
2429    o verification/testscript
2430      - updated to that of checkpoint47a_post
2431    o verification/global_ocean.90x40x15/input/eedata
2432      - modified for SGI f77 compatibility
2433    o verification/lab_sea
2434      - added description of sea-ice model
2435      - added missing matlab routines
2436      - added test of thermodynamics parallelization
2437    
2438    checkpoint47a_post
2439    o new pkg: aim_v23
2440     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2441       for now, keep the same surface forcing as before.
2442     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2443     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2444     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2445    o add diagnostic of surface correction term in monitor output
2446    
2447    o bulk_force and therm_seaice
2448    - Two packages:  bulk_force (Bulk forcing)
2449      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2450    - Earlier integration from Stephaine Dutkiewicz
2451      and Patrick Heimbach.
2452    - Two ifdef statements for compile time,
2453       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2454    
2455    checkpoint47
2456    differentiable version of checkpoint46n_post
2457    o bug fix in quasihydrostaticterms
2458    o * "clean" adjoint code (in terms of extensive recomputations)
2459        can now be obtained for all GMREDI options (i.e. for
2460        - GM_VISBECK_VARIABLE_K
2461        - GM_NON_UNITY_DIAGONAL
2462        - GM_EXTRA_DIAGONAL
2463        - GM_BOLUS_ADVEC )
2464      * However, wrong gradient check problem remains unsolved.
2465      * New CPP options have been introduced for different
2466        tapering schemes
2467    o external_fields_load now part of differentiation list
2468    o pressure needs multiple storing;
2469      would be nice to have store_pressure at beginning or
2470      end of forward_step, e.g. by having phiHyd global (5-dim.)
2471      (NB: pressure is needed for certain cases in find_rho,
2472      which is also invoked through convective_adjustment).
2473    o recomputations in find_rho for cases
2474     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2475    o #define ATMOSPHERIC_LOADING should be differentiable
2476    o ini_forcing shifted to begining of initialise_varia
2477    o Incorporating QNVS line search routines into MITgcm
2478      (this is separate code, and therefore not under pkg)
2479      lsopt/, optim/
2480    o Updated verification/carbon/
2481      - #define GM_VISBECK_VARIABLE_K
2482      - GM_taper_scheme    = 'ldd97'    
2483    
2484    checkpoint46n_post
2485    Merging from release1_p8:
2486    o verification/natl_box:
2487      updating new external_fields_load routine
2488    o New package: pkg/seaice
2489      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2490      The sea-ice code is based on Hibler (1979-1980).
2491      Two sea-ice dynamic solvers, ADI and LSR, are included.
2492      In addition to computing prognostic sea-ice variables and diagnosing
2493      the forcing/external data fields that drive the ocean model,
2494      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2495      The implied surface heat flux is then stored in variable
2496      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2497      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2498      non-local transport term.  Because this call precedes model
2499      thermodynamics, temperature under sea-ice may not be "exactly" at
2500      the freezing point by the time theta is dumped or time-averaged.
2501      N.B.: fairly large differences in accuracy occur across
2502            different platforms/compilers; comparison between
2503            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2504            generated output gives:
2505       T           S           U           V
2506      C D M    c        m  s        m  s        m  s        m  s
2507      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2508      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2509      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2510    
2511      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2512    o GAD:
2513      - generated new common blocks to account for call of
2514        same gad routines with differing traceridentities
2515        (needed to modify tracerIdentity indices in GAD.h)
2516      - generated separate common blocks for case useCubedSphereExchange
2517        (Department of Futurology)
2518      - parameter lists to gmredi_?transport: added tracerIdentity
2519      - added new key indices to tamc.h
2520    o external_fields_load:
2521      - added this routine to TAF list
2522      - needed to make some common blocks global and additional storing
2523        along the same lines as exf package (checkpoint_lev?_directives.h)
2524    o exf:
2525      updated external forcing package
2526      - bug fixes carried over from ecco-branch
2527        (missing OBCS_OPTIONS.h in two routines)
2528      - enable easy to use "no forcing".
2529      - added exf I/O for atmospheric loading
2530      - added exf I/O for runoff data
2531      - transfered scaling between exf <-> MITgcm to exf namelist
2532    o Adding new verification experiment global_with_exf.
2533      This verification experiment is almost identical to the
2534      global_ocean.90x40x15 experiment, except that it uses
2535      the exf (and cal) package instead of the
2536      external_fields_load routine (cf README file).
2537    
2538    checkpoint46m_post
2539    o modified testscript to return -- when there are no lines of "%MON" output
2540    o added new flag "quasiHydrostatic" for QH mode
2541      and new routine quasihydrostaticterms()
2542    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2543      New routine: mom_u_coriolis_nh()
2544    o fixed sign of non-hydrostatic metric terms in u and v equations.
2545      Depend on correct sign of gravitySign.
2546    o added work.pc* to .cvsignore in aim directories using ifc
2547    o introduced flag for controllin non-hydrostatic metric terms
2548    o removed gravitySign from PARM04
2549    o switched to g77/ifc from pgf77 in aim experiments
2550    
2551    checkpoint46l_post
2552    o made convective adjustment work with pressure coordinates:
2553     - changed the direction of k-loop in convective_adjustment.F for the
2554       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2555     - adjusted the reference pressure k-index in convective_adjustment.F
2556     - adjusted the convection condition in convect.F (in analogy to
2557       calc_ivdc.F)
2558     - convective_adjustment no longer computes anything on the halos
2559     - removed the warnings about negative salinity from find_rho.F and
2560       find_alpha.F; instead the new routine look_for_neg_salinity, called
2561       at the beginning of find_rho, find_alpha, and find_beta, does a
2562       check of the entire slice, if CPP-option
2563       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2564    checkpoint46l_pre
2565    
2566    checkpoint46k_post
2567    o fixed the verification/global_ocean.90x40x15 experiment:
2568     - new bathymetry (the world according to A., JMC, and M.)
2569     - new initial fields and forcing fields (*.bin files)
2570     - new POLY3.COEFFS (for the next release one should switch to a full
2571       equation of state: JMD95P or MDJWF)
2572     - fixed several errors and redundancies in the data file
2573     - experiment uses looped cells
2574     - added matlab directory with diagnostic scripts for plotting of output
2575    
2576    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2577     - read AIM physics parameters from a file (data.aimphys)
2578     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2579    
2580    checkpoint46j_post
2581    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2582    o move wVel computation at the end of the time step, in S/R integr_continuity
2583    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2584    o update timeave pkg for wVel diagnostic.
2585    checkpoint46j_pre
2586    
2587    checkpoint46i_post
2588    o Clean up AIM package (and keep the results unchanged):
2589      include CPP_OPTION and use IMPLICT NONE in all routines ;
2590      declare all the variables _RL ; use _d 0 for all numerical constants.
2591      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2592    
2593    checkpoint46h_post
2594    o cleaned up the use of rhoNil and rhoConst.
2595      - rhoNil should only appear in the LINEAR equation of state, everywhere
2596        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2597        and the dynamical equations are all divided by rhoConst
2598    o introduced new parameter rhoConstFresh, a reference density of fresh
2599      water, to remove the fresh water flux's dependence on rhoNil. The default
2600      value is 999.8 kg/m^3
2601    o cleanup up external_forcing.F and external_forcing_surf.F
2602      - can now be used by both OCEANIC and OCEANICP
2603    checkpoint46h_pre
2604    
2605     Added code to convert surface volume flux (fresh water) into
2606     a mass flux when using P coordinates in the ocean (OCEANICP).
2607     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2608    
2609    checkpoint46g_post
2610    o Include a new diagnostic variable phiHydLow for the ocean model
2611      - in z-coordinates, it is the bottom pressure anomaly
2612      - in p-coordinates, it is the sea surface elevation
2613      - in both cases, these variable have global drift, reflecting the mass
2614        drift in z-coordinates and the volume drift in p-coordinates
2615      - included time averaging for phiHydLow, be aware of the drift!
2616    o depth-dependent computation of Bo_surf for pressure coordinates
2617      in the ocean (buoyancyRelation='OCEANICP')
2618      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2619        Theta, Salinity, and Pressure in the parameter list. This routine is
2620        presently contained in find_rho.F. This routine does not give the
2621        correct density for 'POLY3', which would be a z-dependent reference
2622        density.
2623    o cleaned up find_rho
2624      - removed obsolete 'eqn' from the parameter list.
2625    o added two new verification experiments: gop and goz
2626      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2627    checkpoint46g_pre
2628    
2629    checkpoint46f_post
2630    o Enable tangent linear (forward mode) gradient checks:
2631      - extended active file handling to g_... files
2632      - added TANGENT_SIMULATION to theSimulationMode
2633      - extended grdchk package accordingly
2634    o added tangent linear setup in verification/carbon/code_ftl
2635    o added adjoint setup in verification/front_relax/code_ad
2636    
2637    checkpoint46e_post
2638    o Added new equation of state -> MDJWF
2639      - EOS of McDougall et al., 2002, JAOT, submitted
2640      - caveat: the equation of state is only valid for a smaller (more
2641        realistic?) range of values than JMD95P/Z and UNESCO
2642      - added masks to the calculation of pressure in store_pressure
2643      - added more check values for density in check_eos (ini_eos.F), some of
2644        the old check values are out of the range of the MDJWF-eos, so don't
2645        expect perfect matches for those
2646    checkpoint46e_pre
2647    
2648    checkpoint46d_post
2649    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2650      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2651      case of pressure coordinates. eosType='JMD95Z' in
2652      combination with buoyancyRelation='OCEANICP' now causes an error.
2653    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2654      in find_alpha/beta.
2655    checkpoint46d_pre
2656    
2657    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2658      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2659    
2660    checkpoint46c_post
2661    o Changes necessary for ocean in p-coordinates
2662     -  Added new buoyancy relation = 'OCEANICP'
2663     -  Added new parameters = gravitySign (this used to be contained inside
2664        the factor dRdZ which I added when we first switched to R coordinates).
2665     X GM/Redi is not compatible (yet)
2666     X bottom drag and no-slip need to be debugged.
2667    checkpoint46c_pre
2668    
2669    checkpoint46b_post
2670    o Added new equation of state -> JMD95Z and JMD95P
2671      - EOS of Jackett and McDougall, 1995, JAOT
2672      - moved all EOS parameters into EOS.h
2673      - new routines ini_eos.F, store_pressure.F
2674    o Added UNESCO EOS, but not recommended because it requires
2675      in-situ temperature (see JMD95)
2676    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2677      unesco.f to be used with POLY3
2678    checkpoint46b_pre
2679    
2680    checkpoint46a_post
2681    o Added (atmospheric) pressure loading
2682      - new field in FFIELDS.h, etc...
2683      - new cpp flag ATMOSPHERIC_LOADING
2684    o Changed hFacC to _hFacC in calc_phi_hyd.F
2685    o Added SHORTWAVE_HEATING to some files for consistency
2686    checkpoint46a_pre
2687    
2688    checkpoint46
2689    further merges from release1_p5
2690    o new ctrl package
2691      - adopted from ECCO environment to enable optimization
2692      - added Eliassen Palm fluxes to controls
2693    o added Eliassen Palm flux controls to gradient check package
2694    o cost package
2695      - Compatible with new ctrl package
2696      - added Eliassen Palm cost hooks
2697      - modif's of existing cost functions
2698    o Adjoint-related bug fixes in kpp:
2699      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2700      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2701    o autodiff package
2702      - flow directives:
2703        + new for S/R do_the_model_io
2704        + enhanced for S/R checkpoint
2705        + new gmredi.flow
2706      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2707        disable adcommon.h/g_common.h by default.
2708      - fixed problem for adjoint of global_max
2709    o modified verification/carbon/
2710    o New setup for adjoint of global_ocean
2711    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2712    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2713    o incorporated hooks for sponge layer code (external_forcing.F)
2714    
2715    checkpoint45d_post
2716    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
2717    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
2718      (affects plume_on_slope "cg2d" output)
2719    o add new parameter deltaTfreesurf for free-surface time stepping
2720    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
2721    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
2722    o change phiMin in exp1 (to agree with documentation)
2723    o add new flags:
2724     - T,S forcing inside/outside Adams-Bashforth
2725     - turn off temp,salt advection and/or forcing
2726     - for each tracer, define internal flag for multiDimAdvection & A-B
2727    o monitor: change definition of KE to check conservation of Energy
2728    
2729    checkpoint45c_post
2730    o Removed f90 comments ("!")
2731    o Modified initialisations to enable exf package for MITgcm
2732      (without invoking ECCO_PACKAGE).
2733    o modifications to gradient check package (Martin Losch)
2734      - enable centered differences
2735      - modified format of standard output
2736    
2737    checkpoint45b_post
2738    o cleaned exchange calls in cg2d
2739    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
2740    o included CPP option SINGLE_LAYER_MODE in thermodynamics
2741      to configure barotropic setup (Martin Losch)
2742    o moved some initialisations within bi,bj loop in dynamics
2743      (TAF flow dependency)
2744    o in initialise_varia, moved call packages_init_variables
2745      before convective_adjustment_init
2746      (corresponding adjustment of TAF tape initialisation).
2747    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
2748    
2749    checkpoint45a_post
2750    o compute Rho over the whole domain (extend iMin,jMin indices)
2751    o specific exchange for X-slice domain (case Ny=1)
2752    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2753    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2754    
2755    checkpoint44h_post = checkpoint45
2756    o Fix to restore differentiability:
2757      place at which packages_init_variables is called in
2758      initialise_varia is crucial for reverse control flow.
2759    o modifications in GMRedi to enable stable adjoint
2760      (corresponding modif's in thermodynamics, dynamics)
2761    o added missing hook for sponge layer code in external_forcing
2762    o modified test cost functions
2763    o storing in gad_advection (plus removal of write(0,*)!
2764    o missing headers TR1.h added in convective_adjustment routines
2765    o errorMessageUnit set non-equal zero in eeboot
2766      (conflict on some platforms, e.g. IBM SP3)
2767    o modified carbon verif.
2768    
2769    checkpoint44h_pre
2770    o vertical grid option: allow to put the Interface at the middle between
2771      2 cell-centers ; replace delZ in pkg/kpp by drF.
2772    o GM Advective form: Tracers are advected using the residual transport (=
2773      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2774    
2775    checkpoint44g_post
2776    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2777      results) ; ifdef missing in thermodynamics.F
2778    
2779    checkpoint44f_pre,checkpoint44f_post
2780    o added PTRACERS package
2781      This allows an arbitrary number of passive tracers to be integrated
2782      forward simultaneously with the dynamicaly model.
2783      + Implemented so far:
2784        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2785        - I/O and checkpointing
2786        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2787      + Not implemented so far:
2788        - KPP
2789        - OBCS
2790      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2791        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2792        line in data.pkg.
2793      + This package is disabled by default since it increases storage.
2794    
2795    
2796    o testscript: added -cleanup option
2797    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2798                 b) enable to filter 2D fields.
2799    
2800    checkpoint44e_pre,post
2801    o re-wrote convective adjustment to use pre-calculated weights
2802      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2803      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2804      Original calls to convect() still in place.
2805    
2806    chkpt44d_pre,post
2807    o added missing EXCLUDE_MONITOR flags
2808    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2809      (incompatible typ in MIN/MAX expressions caused problems
2810      on IBM SP3)
2811    o in genmake added variable MAKEDEPEND
2812      plus resetting for case SunOS
2813    o added timer_stats.c routine for IBM SP3
2814    o removed variables in dynamics
2815    !!! I forgot to create tag chkpt44d_pre !!!
2816    !!! But chkpt44d_pre = chkpt44c_post    !!!
2817    
2818    o real fresh water flux implemented with non-linear free-surface.
2819    
2820    chkpt44c_pre,post
2821    o few fix (mask in shap_s2, EmPmR in external_field_load,
2822      USE_NATURAL_BCS in solve_for_P);
2823    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2824    
2825    checkpoint44b_pre/_post
2826    o merge of relevant stuff from the ecco-branch:
2827      - genmake: removed $S64 overwrite for case SunOS
2828      - pkg/exf: update and corrections for field swapping and obcs
2829      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2830                  harmonized between ECCO and MITgcm
2831      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2832                      updated checkpointing_lev... lists for obcs
2833      - model/src: minor changes in forward_step, plot_field
2834                   added directive for divided adjoint in the_main_loop
2835      - pkg/mdsio: added mdsio_gl_slice
2836    
2837    o check parameters & config (chkpt44a_pre,post)
2838    o OBC and NonLin_FrSurf.
2839    
2840    checkpoint44
2841    o fix bug in mom_vi_del2uv
2842    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2843    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2844    o update AIM experiments (NCEP input files)
2845    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2846    o added some stuff for AD
2847    
2848    checkpoint43
2849    o added two new advection tests
2850    o added global 4x4 degree ocean test
2851    o added test of H&S94 with free surface on cube
2852    o some final mods for gradient check, adjoint,...
2853    
2854    checkpoint42
2855      Fixed AD-related problems:
2856    o Store directives up-to-date with re-arranged Adams-Bashforth
2857      (mainly thermodynamics.F)
2858    o New store directives for multi-dim. advection schemes
2859      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2860      * new common block and key passkey
2861      (mainly gad_advection.F)
2862    o Modified store directives for split of dynamics/thermodynamics
2863      for the case ALLOW_KPP
2864    o Cleaned argument list for timestep_tracer.F
2865    
2866    checkpoint41
2867    o re-formatted/added comments in prologues of key subroutines
2868      to work with protex
2869    
2870    checkpoint40
2871    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2872    o added FLT (floats) package from Arne along with demo. experiment
2873    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2874      implementation of forward-in-time forcing terms
2875    o more mods for non-linear free-surface including new variable
2876    o modified multi-dim method to work on cube
2877    o bug fix in KPP (from DM)
2878    
2879    checkpoint40pre9
2880    o added DST advection schemes
2881    o fix MPI bug on SGI's
2882    o modifications for non-linear free-surface
2883    o fixed conditionals for fixed flow/passive tracer only mode
2884    o added tension/strain form of stress tensor
2885    o changes to commenting of arguments for TAF/TAMC
2886    o added/updated many matlab scripts
2887    o added multi-dimensional advection method for tracers
2888      
2889    checkpoint40pre8
2890    o new package rw/
2891      Added method for dumping intermediate local arrays:
2892      mdsio_writetile - same as mdsio_writefield except works from inside
2893                        bi,bj loop
2894      mdsio_writelocal - same as mdsio_writetile except works for local
2895                         arrays
2896      write_local_r? - higher-level wrapper for mdsio_writelocal
2897      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2898      Example given at end of mom_vecinv.F that dumps some local arrays.
2899    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2900      control flux-form versus vector invariant code.
2901      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2902      or genmake -DISABLE ...
2903    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2904      (additional storing is now needed for case vecinv;
2905      currently nothing implemented to switch this storing off
2906      in case fluxform is used since no CPP flag available).
2907    
2908    checkpoint40pre7
2909    o bug fix in dynamics.F
2910      calc_viscosity called before k=1,Nr loop.
2911    o added some #ifdef's ALLOW_PASSIVE_TRACER
2912    o cleaned initialisations in ctrl_map_ini
2913      related to TAF
2914    
2915    checkpoint40pre6
2916    o split dynamics into thermodynamics & dynamics
2917    o corresponding split of calc_diffusivity into
2918      calc_diffusivity, calc_viscosity
2919      (kpp_calc_diff, kpp_calc_visc).
2920    o Added diffkr, kapgm to control variables
2921    o bug fix in gmredi_slope_limit for ldd97
2922    
2923    checkpoint40pre5
2924    o proper initialization of Adams-Bashforth time stepping
2925      + uses forward step for very first step of model (iter=0)
2926    o re-generated *all* output since almost all output is modified by this
2927      change (sorry but we've been putting this one off for about 2 years)
2928      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2929        *not* regenerated since they are already out of date and I don't
2930        want to create the impression that they are suddenly working.
2931    o removed KAP stuff for DEC's
2932    o modified/added many .cvsignore files in */code and */input
2933    o added new expt "solid-body.cs-32x32x1"
2934      + this uses an alternative form of ini_curvilinear_grid.F which
2935        is not necessarily any better than the current one...
2936    
2937    checkpoint40pre4
2938    o added re-initialisations of utrans,vtrans,rtrans in
2939      calc_common_factors which are crucial for TAF.
2940    o extended iMin,jMin range for calc_common_factors,
2941      calc_diffusivity
2942    o added option ALLOW_PASSIVE_TRACER
2943    o a few minor updates and fixes
2944    
2945    checkpoint40pre3
2946    o created calc_gtr1.F for gad package
2947    o split the_main_loop and re-introduced forward_step
2948    o some recomputations of nIter0 for TAMC
2949    
2950  checkpoint40pre2  checkpoint40pre2
2951  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
2952  o Added gradient check package  o Added gradient check package

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